Why you should use Backend Engineer Online Test?

The Test inżyniera zaplecza makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects: Rozwój backend za pomocą różnych języków i frameworków programowania Projektowanie i zarządzanie bazą danych z popularnymi systemami baz danych Projektowanie i opracowywanie interfejsu API w celu bezproblemowej komunikacji między różnymi komponentami oprogramowania Projektowanie i implementacja architektury oprogramowania dla skalowalnych i możliwych do utrzymania systemów Zasady programowania zorientowane na obiekt i najlepsze praktyki Projektowanie systemu w celu zapewnienia wydajnej i niezawodnej wydajności Techniki optymalizacji wydajności w celu zwiększenia szybkości i reakcji aplikacji Rozwiązywanie problemów i debugowanie umiejętności w celu identyfikacji i rozwiązywania problemów Kontrola wersji za pomocą git lub innych podobnych narzędzi Testowanie jednostkowe i wiedza na temat ram testowych

Backend Engineer Online Test

Q: What topics are covered in the Backend Engineer Online Test?

Rozwój zaplecza Projektowanie bazy danych Projekt API Architektura oprogramowania Programowanie obiektowe Projekt systemu Optymalizacja wydajności

About the test:

Test online inżyniera Backend wykorzystuje MCQ oparty na scenariuszach do oceny kandydatów na temat ich wiedzy na temat tworzenia zaplecza, co polega na projektowaniu i wdrażaniu logiki, baz danych i interfejsów API po stronie serwera do obsługi aplikacji internetowych i mobilnych. Test ocenia biegłość kandydatów w projektowaniu skalowalnych i solidnych architektur, pisaniu wydajnego kodu w językach takich jak Java, Python lub Ruby, budowanie i integracja z bazami danych, wdrażanie interfejsów API RESTful oraz debugowanie i optymalizację kodu po stronie serwera.

Covered skills:

Rozwój zaplecza
Projekt API
Programowanie obiektowe
Optymalizacja wydajności

Projektowanie bazy danych
Architektura oprogramowania
Projekt systemu

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9 reasons why

Adaface Backend Engineer Test is the most accurate way to shortlist Inżynier backends

Reason #1

Tests for on-the-job skills

The Backend Engineer Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

Biegły w tworzeniu zaplecza przy użyciu różnych języków programowania
Silne zrozumienie projektowania i zarządzania bazą danych
W stanie zaprojektować i rozwijać interfejsy API, które są zgodne z najlepszymi praktykami w branży
Kompetentny w zasadach i wzorcach architektury oprogramowania
Wykwalifikowane w obiektych koncepcjach programowania i implementacji
Doświadczenie w zakresie projektowania systemu i budowania skalowalnych aplikacji
Zdolne do technik i strategii optymalizacji wydajności
Biegły w rozwiązywaniu problemów i debugowaniu złożonych problemów backendowych
Zdolność do pracy i integracji interfejsów API stron trzecich
Znajomość najlepszych praktyk bezpieczeństwa w zakresie rozwoju zaplecza
Znajomość mechanizmów i strategii buforowania
Zrozumienie struktur danych i algorytmów w kontekście zaplecza

Reason #2

No trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface

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Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

To tylko niewielka próbka z naszej biblioteki ponad 10 000 pytań. Rzeczywiste pytania dotyczące tego Test inżyniera zaplecza będzie nieobowiązany.

🧐 Question
Medium Broker Replication System Design	Try practice test
You are working on a large-scale, distributed, and fault-tolerant message processing system designed to handle high throughput and low latency requirements. The system is based on the publish-subscribe pattern and uses multiple brokers to distribute messages across various topics and partitions. In this architecture, both publishers and subscribers are considered clients. The brokers are responsible for replicating messages among themselves to ensure fault tolerance and data durability. A client reports successfully publishing a message on a specific topic. However, one of the subscribers has not received the message. To investigate the issue, you have gathered detailed logs and system design data, as shown below: Based on the information provided, which of the following is the most likely reason for the issue? A: The message was not published on the topic B: Client C is not subscribed to the correct topic C: There is a replication lag between brokers B1 and B2 D: Client C is consuming from the wrong broker E: The message processing system failed to acknowledge the message
Medium Load Balancer Latency Debugging	Try practice test
A backend service is experiencing intermittent latency spikes while processing incoming requests. The service is deployed in a multi-node environment with a load balancer in front. You suspect that the issue might be related to resource contention. You collect the following performance metrics from the affected nodes during a spike: Which of the following is the most probable cause of the latency spikes? A: High memory usage on the affected nodes. B: Disk I/O bottlenecks on the affected nodes. C: Insufficient CPU resources on the affected nodes. D: Uneven distribution of incoming requests by the load balancer. E: Network latency between the load balancer and the backend nodes.
Medium Decryptor Strings	Try practice test
What does the following pseudo code print?
Hard Fibonacci codes Time Complexity Pseudo Code	Try practice test
Here are three pseudocodes for calculating the Nth Fibonacci number. Which of the following statements about these codes are true? A: Time complexity/efficiency of CODE 1, CODE 2, CODE 3 is the same. B: CODE 2 is more space-efficient than CODE 3. C: CODE 3 is more space-efficient than CODE 2. D: CODE 2 is more time-efficient than CODE 1. E: CODE 3 is more time-efficient than CODE 1.
Hard Palindrome Test cases Strings	Try practice test
Go through the following faulty palindrome detection pseudocode and test cases. For which of the test cases would the code return true? Testcases A: a B: aba C: aaa D: aac
Medium Rewards Activities Order Database Connection	Try practice test
A new popular app tracks the activities performed by its users and grants them rewards based on each individual's total activities performed in a year. This data is maintained in a database table (activitesinfo), with the following columns: userid, totalactivities, reward. This year, due to fundraising activity, the company has decided to further reward its users by enhancing the reward as per the following formula: If reward < = 4000, increase it by 2%, If 4000 < reward <= 8000, increase it by 4%, If reward > 8000, increase it by 6%. The tech team has written three different scripts to calculate increment for each slab, each script is to run as a separate transaction. Here are the three scripts: Script 1: For users with reward <= 4000, set reward = reward * 1.02 Script 2: For users with reward > 4000 and reward <= 8000, set reward = reward * 1.04 Script 3: For users with reward > 8000, set reward = reward * 1.06 Each script is to be executed separately. Which of the following options will update the rewards as expected: A: Execute Script 1 followed by Script 2 followed by Script 3 B: Execute Script 2 followed by Script 3; Script 1 running concurrently throughout C: Execute Script 3 followed by Script 2; Script 1 running concurrently throughout D: Execute Script 3 followed by Script 2 followed by Script 1 E: Execute Script 2 followed by Script 3 followed by Script 1
Easy Registration Queue Logic Queues	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
Medium Visitors Count Strings Logic	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

	🧐 Question	🔧 Skill
	Medium Broker Replication System Design	3 mins Backend	Try practice test
You are working on a large-scale, distributed, and fault-tolerant message processing system designed to handle high throughput and low latency requirements. The system is based on the publish-subscribe pattern and uses multiple brokers to distribute messages across various topics and partitions. In this architecture, both publishers and subscribers are considered clients. The brokers are responsible for replicating messages among themselves to ensure fault tolerance and data durability. A client reports successfully publishing a message on a specific topic. However, one of the subscribers has not received the message. To investigate the issue, you have gathered detailed logs and system design data, as shown below: Based on the information provided, which of the following is the most likely reason for the issue? A: The message was not published on the topic B: Client C is not subscribed to the correct topic C: There is a replication lag between brokers B1 and B2 D: Client C is consuming from the wrong broker E: The message processing system failed to acknowledge the message
	Medium Load Balancer Latency Debugging	3 mins Backend	Try practice test
A backend service is experiencing intermittent latency spikes while processing incoming requests. The service is deployed in a multi-node environment with a load balancer in front. You suspect that the issue might be related to resource contention. You collect the following performance metrics from the affected nodes during a spike: Which of the following is the most probable cause of the latency spikes? A: High memory usage on the affected nodes. B: Disk I/O bottlenecks on the affected nodes. C: Insufficient CPU resources on the affected nodes. D: Uneven distribution of incoming requests by the load balancer. E: Network latency between the load balancer and the backend nodes.
	Medium Decryptor Strings	2 mins Technical Aptitude	Try practice test
What does the following pseudo code print?
	Hard Fibonacci codes Time Complexity Pseudo Code	2 mins Technical Aptitude	Try practice test
Here are three pseudocodes for calculating the Nth Fibonacci number. Which of the following statements about these codes are true? A: Time complexity/efficiency of CODE 1, CODE 2, CODE 3 is the same. B: CODE 2 is more space-efficient than CODE 3. C: CODE 3 is more space-efficient than CODE 2. D: CODE 2 is more time-efficient than CODE 1. E: CODE 3 is more time-efficient than CODE 1.
	Hard Palindrome Test cases Strings	2 mins Technical Aptitude	Try practice test
Go through the following faulty palindrome detection pseudocode and test cases. For which of the test cases would the code return true? Testcases A: a B: aba C: aaa D: aac
	Medium Rewards Activities Order Database Connection	3 mins Technical Aptitude	Try practice test
A new popular app tracks the activities performed by its users and grants them rewards based on each individual's total activities performed in a year. This data is maintained in a database table (activitesinfo), with the following columns: userid, totalactivities, reward. This year, due to fundraising activity, the company has decided to further reward its users by enhancing the reward as per the following formula: If reward < = 4000, increase it by 2%, If 4000 < reward <= 8000, increase it by 4%, If reward > 8000, increase it by 6%. The tech team has written three different scripts to calculate increment for each slab, each script is to run as a separate transaction. Here are the three scripts: Script 1: For users with reward <= 4000, set reward = reward * 1.02 Script 2: For users with reward > 4000 and reward <= 8000, set reward = reward * 1.04 Script 3: For users with reward > 8000, set reward = reward * 1.06 Each script is to be executed separately. Which of the following options will update the rewards as expected: A: Execute Script 1 followed by Script 2 followed by Script 3 B: Execute Script 2 followed by Script 3; Script 1 running concurrently throughout C: Execute Script 3 followed by Script 2; Script 1 running concurrently throughout D: Execute Script 3 followed by Script 2 followed by Script 1 E: Execute Script 2 followed by Script 3 followed by Script 1
	Easy Registration Queue Logic Queues	30 mins Coding	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
	Medium Visitors Count Strings Logic	30 mins Coding	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	Broker Replication System Design	Backend	Medium	3 mins	Try practice test
You are working on a large-scale, distributed, and fault-tolerant message processing system designed to handle high throughput and low latency requirements. The system is based on the publish-subscribe pattern and uses multiple brokers to distribute messages across various topics and partitions. In this architecture, both publishers and subscribers are considered clients. The brokers are responsible for replicating messages among themselves to ensure fault tolerance and data durability. A client reports successfully publishing a message on a specific topic. However, one of the subscribers has not received the message. To investigate the issue, you have gathered detailed logs and system design data, as shown below: Based on the information provided, which of the following is the most likely reason for the issue? A: The message was not published on the topic B: Client C is not subscribed to the correct topic C: There is a replication lag between brokers B1 and B2 D: Client C is consuming from the wrong broker E: The message processing system failed to acknowledge the message
	Load Balancer Latency Debugging	Backend	Medium	3 mins	Try practice test
A backend service is experiencing intermittent latency spikes while processing incoming requests. The service is deployed in a multi-node environment with a load balancer in front. You suspect that the issue might be related to resource contention. You collect the following performance metrics from the affected nodes during a spike: Which of the following is the most probable cause of the latency spikes? A: High memory usage on the affected nodes. B: Disk I/O bottlenecks on the affected nodes. C: Insufficient CPU resources on the affected nodes. D: Uneven distribution of incoming requests by the load balancer. E: Network latency between the load balancer and the backend nodes.
	Decryptor Strings	Technical Aptitude	Medium	2 mins	Try practice test
What does the following pseudo code print?
	Fibonacci codes Time Complexity Pseudo Code	Technical Aptitude	Hard	2 mins	Try practice test
Here are three pseudocodes for calculating the Nth Fibonacci number. Which of the following statements about these codes are true? A: Time complexity/efficiency of CODE 1, CODE 2, CODE 3 is the same. B: CODE 2 is more space-efficient than CODE 3. C: CODE 3 is more space-efficient than CODE 2. D: CODE 2 is more time-efficient than CODE 1. E: CODE 3 is more time-efficient than CODE 1.
	Palindrome Test cases Strings	Technical Aptitude	Hard	2 mins	Try practice test
Go through the following faulty palindrome detection pseudocode and test cases. For which of the test cases would the code return true? Testcases A: a B: aba C: aaa D: aac
	Rewards Activities Order Database Connection	Technical Aptitude	Medium	3 mins	Try practice test
A new popular app tracks the activities performed by its users and grants them rewards based on each individual's total activities performed in a year. This data is maintained in a database table (activitesinfo), with the following columns: userid, totalactivities, reward. This year, due to fundraising activity, the company has decided to further reward its users by enhancing the reward as per the following formula: If reward < = 4000, increase it by 2%, If 4000 < reward <= 8000, increase it by 4%, If reward > 8000, increase it by 6%. The tech team has written three different scripts to calculate increment for each slab, each script is to run as a separate transaction. Here are the three scripts: Script 1: For users with reward <= 4000, set reward = reward * 1.02 Script 2: For users with reward > 4000 and reward <= 8000, set reward = reward * 1.04 Script 3: For users with reward > 8000, set reward = reward * 1.06 Each script is to be executed separately. Which of the following options will update the rewards as expected: A: Execute Script 1 followed by Script 2 followed by Script 3 B: Execute Script 2 followed by Script 3; Script 1 running concurrently throughout C: Execute Script 3 followed by Script 2; Script 1 running concurrently throughout D: Execute Script 3 followed by Script 2 followed by Script 1 E: Execute Script 2 followed by Script 3 followed by Script 1
	Registration Queue Logic Queues	Coding	Easy	30 mins	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
	Visitors Count Strings Logic	Coding	Medium	30 mins	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

Reason #4

1200+ customers in 75 countries

Dzięki Adaface udało nam się zoptymalizować nasz proces wstępnej selekcji o ponad 75%, oszczędzając cenny czas zarówno menedżerom ds. rekrutacji, jak i naszemu zespołowi ds. pozyskiwania talentów!

Brandon Lee, Głowa Ludu, Love, Bonito

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Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Test inżyniera zaplecza in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests

Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the Test inżyniera zaplecza from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

Reason #7

Detailed scorecards & benchmarks

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Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

Reason #9

Advanced Proctoring

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About the Backend Engineer Assessment Test

Why you should use Pre-employment Backend Engineer Online Test?

The Test inżyniera zaplecza makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

Rozwój backend za pomocą różnych języków i frameworków programowania
Projektowanie i zarządzanie bazą danych z popularnymi systemami baz danych
Projektowanie i opracowywanie interfejsu API w celu bezproblemowej komunikacji między różnymi komponentami oprogramowania
Projektowanie i implementacja architektury oprogramowania dla skalowalnych i możliwych do utrzymania systemów
Zasady programowania zorientowane na obiekt i najlepsze praktyki
Projektowanie systemu w celu zapewnienia wydajnej i niezawodnej wydajności
Techniki optymalizacji wydajności w celu zwiększenia szybkości i reakcji aplikacji
Rozwiązywanie problemów i debugowanie umiejętności w celu identyfikacji i rozwiązywania problemów
Kontrola wersji za pomocą git lub innych podobnych narzędzi
Testowanie jednostkowe i wiedza na temat ram testowych

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the Backend Engineer Online Test?

Backend Development
Rozwój zaplecza odnosi się do tworzenia i konserwacji logiki po stronie serwera, która zasila strony internetowe i aplikacje. Obejmuje zadania, takie jak obsługa przechowywania danych, przetwarzanie żądań użytkowników i zarządzanie infrastrukturą serwera. Mierzenie tych umiejętności zapewnia, że kandydaci dobrze rozumieją technologie zaplecza i mogą skutecznie budować solidne i wydajne systemy zaplecza.
Projektowanie bazy danych
Projektowanie bazy danych polega na zaprojektowaniu struktury i organizacji baz danych, aby to Efektywnie przechowuj i pobieraj dane. Zawiera zadania, takie jak definiowanie tabel, tworzenie relacji między nimi i optymalizacja zapytań. Mierzenie tej umiejętności pomaga ocenić zdolność kandydata do tworzenia skalowalnych i dobrze zorganizowanych baz danych, co jest niezbędne do budowania niezawodnych i wykonujących aplikacji.
Projektowanie API
Projekt API koncentruje się na tworzeniu dobrego Zaprojektowane interfejsy programowania aplikacji (API), które umożliwiają komunikację między różnymi komponentami oprogramowania. Obejmuje określenie odpowiednich punktów końcowych, formatów żądań/odpowiedzi i mechanizmów uwierzytelniania. Mierzenie tych umiejętności zapewnia, że kandydaci mogą tworzyć intuicyjne i przyjazne dla programistów interfejsy API, promowanie łatwości integracji i wydajnej współpracy.
Architektura oprogramowania
Architektura oprogramowania obejmuje projekt i organizację projektu i organizacji Systemy oprogramowania. Obejmuje podejmowanie decyzji dotyczących struktury, komponentów i interakcji systemu w celu spełnienia wymagań funkcjonalnych i niefunkcjonalnych. Pomiar tej umiejętności pomaga ocenić zdolność kandydata do tworzenia skalowalnych, możliwych do utrzymania i dostosowujących się architektur oprogramowania, które ułatwiają elastyczne i solidne opracowywanie aplikacji.
Programowanie obiektowe
Programowanie obiektowe (OOP (OOP (OOP (OOP (OOP (OOP (OOP ) to paradygmat programowania, który organizuje projekt oprogramowania wokół obiektów, które otaczają dane i zachowanie. Obejmuje definiowanie klas, tworzenie obiektów i stosowanie dziedzictwa i polimorfizmu. Mierzenie tej umiejętności ocenia biegłość kandydata w zakresie wykorzystania zasad i technik OOP, umożliwiając im pisanie kodu modułowego, wielokrotnego użytku i rozszerzalnego.
Projektowanie systemu
Projekt systemu koncentruje się na projektowaniu architektury i Komponenty systemów na dużą skalę. Obejmuje to identyfikację wymagań systemowych, określenie modułów i interfejsów oraz uwzględnienie skalowalności, tolerancji błędów i wydajności. Mierzenie tych umiejętności zapewnia, że kandydaci mogą zaprojektować solidne i wydajne systemy zdolne do obsługi wysokich ilości danych i użytkowników.
Optymalizacja wydajności
Optymalizacja wydajności polega na poprawie prędkości, wydajności i wykorzystania zasobów systemów oprogramowania. Zawiera zadania takie jak profilowanie kodu, identyfikacja wąskich gardeł i wdrażanie optymalizacji. Pomiar tej umiejętności pomaga zidentyfikować kandydatów, którzy rozumieją znaczenie optymalizacji wydajności oprogramowania, umożliwiając im tworzenie wysoce responsywnych i skalowalnych aplikacji.
Full list of covered topics
The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for Test inżyniera zaplecza to be based on.
Rozwój zaplecza
Rozwój frontendowy
Projektowanie bazy danych
Relacyjne bazy danych
Bazy danych NOSQL
Projekt API
Rentful API
Graphql
Mikrousług
Architektura oprogramowania
Architektura MVC
Warstwowa architektura
Architektura oparta na zdarzeniach
Programowanie obiektowe
Dziedzictwo
Wielopostaciowość
Kapsułkowanie
Abstrakcja
Projekt systemu
Skalowalność
Duża dostępność
Równoważenie obciążenia
Partycjonowanie danych
Optymalizacja wydajności
Buforowanie
Optymalizacja zapytania
Konkurencja
Rozwiązywanie problemów
Debugowanie
Obsługa wyjątków
Najlepsze praktyki bezpieczeństwa
Uwierzytelnianie
Upoważnienie
Szyfrowanie
Integracja API stron trzecich
OAuth
Webhooks
Logowanie
Obsługa błędów
Strategie buforowania
Struktury danych
Tablice
Połączone listy
Półki na książki
Kolejki
Tabele z haszyszu
Drzewa binarne
Wykresy
Algorytmy
Sortowanie
Badawczy
Programowanie dynamiczne
Rekurencja
Wyrażenia regularne

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What roles can I use the Backend Engineer Online Test for?

Inżynier backend
Deweloper pełnego stosu
Inżynier oprogramowania
Deweloper API
Architekt oprogramowania

How is the Backend Engineer Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

Doświadczenie z architekturą mikrousług
Zrozumienie przetwarzania i wdrażania w chmurze
Znajomość mechanizmów i technik buforowania
Wzorce projektowe i ich aplikacja w tworzeniu oprogramowania
Doświadczenie z technologiami konteneralizacji, takimi jak Docker
Umiejętności w projektowaniu i utrzymywaniu RESTful API
Znajomość najlepszych praktyk bezpieczeństwa w tworzeniu oprogramowania
Doświadczenie z kolejkami wiadomości i architekturami opartymi na zdarzeniach
Zrozumienie systemów rozproszonych i ich wyzwań
Biegłość w SQL i optymalizacji zapytań
Możliwość optymalizacji wydajności i skalowalności aplikacji za pomocą mechanizmów buforowania

The coding question for experienced candidates will be of a higher difficulty level to evaluate more hands-on experience.

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Zobacz przykładową kartę wyników

Menedżerowie ds. rekrutacji mieli poczucie, że dzięki technicznym pytaniom, które zadawali podczas rozmów panelowych, byli w stanie stwierdzić, którzy kandydaci uzyskali lepsze wyniki, i odróżnić się od tych, którzy również nie uzyskali takich punktów. Oni są bardzo zadowolony z jakością kandydatów wybranych do selekcji Adaface.

85%

Zmniejszenie czasu badań przesiewowych

Zobacz pełne studium przypadku

Backend Engineer Hiring Test Często zadawane pytania

Czy mogę połączyć wiele umiejętności w jedną niestandardową ocenę?

Tak, absolutnie. Oceny niestandardowe są konfigurowane na podstawie opisu stanowiska i będą zawierać pytania dotyczące wszystkich określonych umiejętności, które określasz.

Czy masz jakieś funkcje anty-cheatingowe lub proktorowe?

Mamy następujące funkcje anty-cheatingowe:

Pytania o niezgodne z nich
Proctoring IP
Proctoring Web
Proctoring kamery internetowej
Wykrywanie plagiatu
Bezpieczna przeglądarka

Przeczytaj więcej o funkcjach Proctoring.

Jak interpretować wyniki testów?

Najważniejsze, o czym należy pamiętać, jest to, że ocena jest narzędziem eliminacyjnym, a nie narzędziem wyboru. Ocena umiejętności jest zoptymalizowana, aby pomóc Ci wyeliminować kandydatów, którzy nie są technicznie zakwalifikowani do roli, nie jest zoptymalizowana, aby pomóc Ci znaleźć najlepszego kandydata do tej roli. Dlatego idealnym sposobem na wykorzystanie oceny jest podjęcie decyzji o wyniku progowym (zwykle 55%, pomagamy Ci porównać) i zaprosić wszystkich kandydatów, którzy wyniki powyżej progu na następne rundy wywiadu.

Do jakiego poziomu doświadczenia mogę użyć tego testu?

Każda ocena Adaface jest dostosowana do opisu stanowiska/ idealnego kandydującego osobowości (nasi eksperci przedmiotu będą podejmować właściwe pytania dotyczące oceny z naszej biblioteki ponad 10000 pytań). Ocenę tę można dostosować do dowolnego poziomu doświadczenia.

Czy każdy kandydat otrzymuje te same pytania?

Tak, znacznie ułatwia porównanie kandydatów. Opcje pytań MCQ i kolejność pytań są losowe. Mamy funkcje anty-cheating/proctoring. W naszym planie korporacyjnym mamy również możliwość tworzenia wielu wersji tej samej oceny z pytaniami o podobnych poziomach trudności.