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Hire Back-End Developers

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Without back-end developers, the internet as we know it wouldn’t exist. With a vital and in-demand skill set, hiring great back-end developers is essential to technical teams in every industry.

The Largest Library of Assessment Content

With 3100+ questions spanning the most in-demand roles in tech, our assessment content helps companies hire talent at all skill levels — from interns to seasoned professionals.

Job Family
Job Role
  • .net
  • Angular
  • Ansible
  • Apache Spark
  • Application Security
  • Applied Math
  • AWS
  • AWS Security
  • C#
  • Code Quality
  • Couchbase
  • Cryptography
  • CSS
  • Data Modeling
  • Data Visualization
  • Data Wrangling
  • Django
  • Docker
  • Hadoop
  • Java
  • JavaScript
  • Jenkins
  • Kafka
  • Kubernetes
  • Kubernetes Security
  • Language Proficiency
  • Linux
  • Machine Learning
  • Network Security
  • Node
  • Node.js
  • Problem Solving
  • Python
  • Python – Basic
  • PyTorch
  • R
  • React
  • REST API
  • Ruby on Rails (RoR)
  • Scala
  • Selenium
  • SQL
  • Statistics
  • System Design
  • Technical Communications
  • TensorFlow
  • Terraform
  • Vue.js
Software Engineering
  • .net
  • Angular
  • Ansible
  • Apache Spark
  • Application Security
  • Applied Math
  • AWS
  • AWS Security
  • C#
  • Code Quality
  • Couchbase
  • Cryptography
  • CSS
  • Data Modeling
  • Data Visualization
  • Data Wrangling
  • Django
  • Docker
  • Hadoop
  • Java
  • JavaScript
  • Jenkins
  • Kafka
  • Kubernetes
  • Kubernetes Security
  • Language Proficiency
  • Linux
  • Machine Learning
  • Network Security
  • Node
  • Node.js
  • Problem Solving
  • Python
  • Python – Basic
  • PyTorch
  • R
  • React
  • REST API
  • Ruby on Rails (RoR)
  • Scala
  • Selenium
  • SQL
  • Statistics
  • System Design
  • Technical Communications
  • TensorFlow
  • Terraform
  • Vue.js
Web Development
  • .net
  • Angular
  • Ansible
  • Apache Spark
  • Application Security
  • Applied Math
  • AWS
  • AWS Security
  • C#
  • Code Quality
  • Couchbase
  • Cryptography
  • CSS
  • Data Modeling
  • Data Visualization
  • Data Wrangling
  • Django
  • Docker
  • Hadoop
  • Java
  • JavaScript
  • Jenkins
  • Kafka
  • Kubernetes
  • Kubernetes Security
  • Language Proficiency
  • Linux
  • Machine Learning
  • Network Security
  • Node
  • Node.js
  • Problem Solving
  • Python
  • Python – Basic
  • PyTorch
  • R
  • React
  • REST API
  • Ruby on Rails (RoR)
  • Scala
  • Selenium
  • SQL
  • Statistics
  • System Design
  • Technical Communications
  • TensorFlow
  • Terraform
  • Vue.js
QA and Testing
  • .net
  • Angular
  • Ansible
  • Apache Spark
  • Application Security
  • Applied Math
  • AWS
  • AWS Security
  • C#
  • Code Quality
  • Couchbase
  • Cryptography
  • CSS
  • Data Modeling
  • Data Visualization
  • Data Wrangling
  • Django
  • Docker
  • Hadoop
  • Java
  • JavaScript
  • Jenkins
  • Kafka
  • Kubernetes
  • Kubernetes Security
  • Language Proficiency
  • Linux
  • Machine Learning
  • Network Security
  • Node
  • Node.js
  • Problem Solving
  • Python
  • Python – Basic
  • PyTorch
  • R
  • React
  • REST API
  • Ruby on Rails (RoR)
  • Scala
  • Selenium
  • SQL
  • Statistics
  • System Design
  • Technical Communications
  • TensorFlow
  • Terraform
  • Vue.js
Cloud and DevOps
  • .net
  • Angular
  • Ansible
  • Apache Spark
  • Application Security
  • Applied Math
  • AWS
  • AWS Security
  • C#
  • Code Quality
  • Couchbase
  • Cryptography
  • CSS
  • Data Modeling
  • Data Visualization
  • Data Wrangling
  • Django
  • Docker
  • Hadoop
  • Java
  • JavaScript
  • Jenkins
  • Kafka
  • Kubernetes
  • Kubernetes Security
  • Language Proficiency
  • Linux
  • Machine Learning
  • Network Security
  • Node
  • Node.js
  • Problem Solving
  • Python
  • Python – Basic
  • PyTorch
  • R
  • React
  • REST API
  • Ruby on Rails (RoR)
  • Scala
  • Selenium
  • SQL
  • Statistics
  • System Design
  • Technical Communications
  • TensorFlow
  • Terraform
  • Vue.js
Data Science and ML
  • .net
  • Angular
  • Ansible
  • Apache Spark
  • Application Security
  • Applied Math
  • AWS
  • AWS Security
  • C#
  • Code Quality
  • Couchbase
  • Cryptography
  • CSS
  • Data Modeling
  • Data Visualization
  • Data Wrangling
  • Django
  • Docker
  • Hadoop
  • Java
  • JavaScript
  • Jenkins
  • Kafka
  • Kubernetes
  • Kubernetes Security
  • Language Proficiency
  • Linux
  • Machine Learning
  • Network Security
  • Node
  • Node.js
  • Problem Solving
  • Python
  • Python – Basic
  • PyTorch
  • R
  • React
  • REST API
  • Ruby on Rails (RoR)
  • Scala
  • Selenium
  • SQL
  • Statistics
  • System Design
  • Technical Communications
  • TensorFlow
  • Terraform
  • Vue.js
Cybersecurity
  • .net
  • Angular
  • Ansible
  • Apache Spark
  • Application Security
  • Applied Math
  • AWS
  • AWS Security
  • C#
  • Code Quality
  • Couchbase
  • Cryptography
  • CSS
  • Data Modeling
  • Data Visualization
  • Data Wrangling
  • Django
  • Docker
  • Hadoop
  • Java
  • JavaScript
  • Jenkins
  • Kafka
  • Kubernetes
  • Kubernetes Security
  • Language Proficiency
  • Linux
  • Machine Learning
  • Network Security
  • Node
  • Node.js
  • Problem Solving
  • Python
  • Python – Basic
  • PyTorch
  • R
  • React
  • REST API
  • Ruby on Rails (RoR)
  • Scala
  • Selenium
  • SQL
  • Statistics
  • System Design
  • Technical Communications
  • TensorFlow
  • Terraform
  • Vue.js

The industry standard for technical hiring

+
Customers >25% of Fortune 100 companies
+ million
Developers 40% of the developer
population assessed
+ million
Code submissions Across all assessments
and interviews

Assess Top Emerging Tech Roles

With the help of 3,000+ companies around the world and a developer community of 21+million, we stay on top of the seismic shifts in tech hiring. These are the four of the most in-demand roles in tech today.

Cybersecurity

Cybersecurity is one of the most important roles in the tech industry. The global cybersecurity market is projected to grow from almost $218 billion USD in 2021 to more than $345 billion by 2026. Here’s a bird’s-eye view of some the role’s mission-critical skills:

Skill Spotlight:
Cryptography

Definition: The science of creating and implementing algorithms that secure data during communication and transactions.

Key Competencies: Understanding of cryptosystems, cryptanalysis, and the basic principles of symmetric and asymmetric key encryption

Assessment Areas: Analytical Skills, Steam Cyphers, Block Ciphers, Message Integrity, Hash Functions, and more

Skill Spotlight:
Kubernetes

Definition: Implementing compliance configurations for teams to secure container-based Kubernetes applications.

Key Competencies: Best practices for container lifecycle and Kubernetes management during build, deployment, and runtime.

Assessment Areas: Pod security policies, Kubernetes Secrets, Security Context, RBAC, and more

Data Engineer

Data Engineers play a significant role in obtaining key insights. In fact, this role is so valuable to organizations that data engineering is positioned to be one of the fastest-growing tech careers — with over 50% year-over-year growth. Some top skills to evaluate are:

Skill Spotlight:
Python

Definition: An interpreted, high-level, general-purpose programming language, and one of the most popular languages for rapid development across multiple platforms.

Key Competencies: Closures and decorators, using magic methods in Python, object-oriented programming, and more

Assessment Areas: Object-oriented programming, collections, context managers, and more

Skill Spotlight:
Machine Learning

Definition: Machine Learning, a subdomain of artificial intelligence, allows computers to produce output without being explicitly programmed.

Key Competencies: Feature selection and machine learning model selection, procuring data, data visualization, record sampling, and more.

Assessment Areas: Jupyter Notebook, UCI Machine Learning Repository, data visualization, record sampling, and more

Full Stack Engineer

Full-Stack Engineers set the groundwork to get the job done. Because of their skills on both the front- and back-end, they are highly sought after. In September of 2021, there were nearly 13,000 open full-stack job roles. Here are a few key skills these candidates should excel in:

Skill Spotlight:
React

Definition: React is a framework that works with Javascript to render dynamic page content, maintaining a state variable for each dynamic element.

Key Competencies: Managing controlled components, routing with Params, fetching, processing data using web requests, and more.

Assessment Areas: APIs, basic hooks, familiarity with component lifecycle (e.g. mounting, updating, error handling), and more

Skill Spotlight:
CSS

Definition: CSS is primarily used to enable text styling, tables, and to format the layout of web pages. It is usable with any XML-based markup language.

Key Competencies: Cascading and inheritance, understanding the use of text and layouts in CSS, and more

Assessment Areas: Box models; text styling fundamentals like font, spacing and other text features; layout fundamentals, and more

Front-End Developer

Front-end developers play a pivotal role in bridging the gap between the technical and non-technical aspects of web or app development projects. They build on the work of back-end developers to create the user-facing content we interact with on websites and apps. The field is growing, too: the US Bureau of Labor Statistics projects 13% growth through 2028. Critical skills:

Skill Spotlight:
CSS

Definition: CSS is primarily used to enable text styling, tables, and to format the layout of web pages. It is usable with any XML-based markup language.

Key Competencies: Cascading and inheritance, understanding the use of text and layouts in CSS, and more.

Assessment Areas: Box models; text styling fundamentals like font, spacing and other text features; layout fundamentals, and more.

Skill Spotlight:
JavaScript

Definition: Javascript has been used for programming web browsers and on the server-side with Node. Main uses include adding interactive behavior to web pages, creating web and mobile apps, and more.

Key Competencies: Design Patterns, Memory management, concurrency model, and event loops, among others.

Assessment Areas: Object-oriented solutions, memory management, concurrency models

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