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Javascript Backend Developer Jobs in Connecticut

Empower

Software Engineer

Hartford, CT

Design, build, and maintain ETL pipelines and backend data workflows using Python and SQL ... Experience with Java or JavaScript is a plus but not required. This job operates in a professional ...

Hyperfine

Senior Software Engineer, Cloud

Guilford, CT · On-site +1

$143K - $165K/yr

Backend web development, including best software engineering practices, efficient object-oriented ... Javascript, Typescript) and modern frameworks (React). * Working with Product and UI/UX designers ...

Hyperfine

Senior Software Engineer, Cloud

Guilford, CT · On-site

$143K - $165K/yr

Backend web development, including best software engineering practices, efficient object-oriented ... Javascript, Typescript) and modern frameworks (React). * Working with Product and UI/UX designers ...

Hyperfine

Senior Software Engineer, Cloud

Guilford, CT · On-site +1

$143K - $165K/yr

Backend web development, including best software engineering practices, efficient object-oriented ... Javascript, Typescript) and modern frameworks (React). * Working with Product and UI/UX designers ...

Deloitte

CyberArk Senior Consultant

Stamford, CT · On-site

Experience with object-oriented programming using languages such as Java, Python, or JavaScript ... Experience with at least one backend technology stack: Node.js, Python (Django or Flask), or Java ...

Deloitte

CyberArk Senior Consultant

Hartford, CT

Experience with object-oriented programming using languages such as Java, Python, or JavaScript ... Experience with at least one backend technology stack: Node.js, Python (Django or Flask), or Java ...

Sonsoft Inc

AngularJS

Hartford, CT · On-site

At least 4 years of experience in HTML5, CSS3, JavaScript. * At least 2 years of experience in ... At least 1 years of experience in back end technologies involving SQL Server 2012/2014, Oracle 10G ...

Sonsoft Inc

AngularJS

Hartford, CT · On-site

At least 4 years of experience in HTML5, CSS3, JavaScript. * At least 2 years of experience in ... At least 1 years of experience in back end technologies involving SQL Server 2012/2014, Oracle 10G ...

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All JobsJavascript Backend Developer JobsJavascript Backend Developer Jobs in Connecticut

Javascript Backend Developer information

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How much do javascript backend developer jobs pay per hour?

As of Jul 9, 2026, the average hourly pay for javascript backend developer in Connecticut is $54.92, according to ZipRecruiter salary data. Most workers in this role earn between $45.05 and $64.95 per hour, depending on experience, location, and employer.

Can I learn backend in 3 months?

A JavaScript Backend Developer can acquire foundational backend skills in about three months with focused study, including learning Node.js, databases, and APIs. However, becoming proficient and gaining job-ready experience typically requires ongoing practice and real-world project work beyond this timeframe.

What does a JavaScript Backend Developer do?

A JavaScript Backend Developer is responsible for building and maintaining the server-side logic, databases, and APIs that power web applications. They use JavaScript, often with frameworks like Node.js, to process requests, manage data, and ensure smooth communication between the frontend and backend of an application. Their work ensures that web applications are scalable, secure, and efficient. JavaScript Backend Developers also collaborate with frontend developers and other team members to deliver seamless user experiences.

What are the key skills and qualifications needed to thrive as a Javascript Backend Developer, and why are they important?

To thrive as a Javascript Backend Developer, you need strong proficiency in JavaScript (especially Node.js), knowledge of backend frameworks, and a solid understanding of databases such as MongoDB or PostgreSQL. Familiarity with development tools like Git, RESTful APIs, Docker, and cloud platforms, as well as relevant certifications, is highly valuable. Excellent problem-solving, teamwork, and communication skills help you collaborate effectively and deliver robust solutions. These abilities are crucial for building scalable, secure, and maintainable backend services that power modern applications.

What is JavaScript salary?

The salary for a JavaScript Backend Developer varies based on experience, location, and company size, but typically ranges from $70,000 to $120,000 annually in many regions. Skilled developers with knowledge of frameworks like Node.js and experience with cloud services tend to earn higher salaries. Entry-level positions may start lower, while senior roles can exceed $150,000.

What are the typical challenges a JavaScript Backend Developer faces when scaling applications for high traffic?

JavaScript Backend Developers, especially those working with Node.js, often encounter challenges related to handling high concurrency, optimizing database queries, and maintaining application performance under heavy load. Ensuring efficient memory management and implementing robust error handling are also critical when scaling. Working closely with DevOps and frontend teams to optimize APIs and monitor system health is essential for delivering reliable, scalable backend solutions.

What is the difference between Javascript Backend Developer vs Javascript Frontend Developer?

AspectJavascript Backend DeveloperJavascript Frontend Developer
Primary FocusServer-side development, APIs, databasesUser interface, client-side interactions
Required SkillsNode.js, databases, server managementHTML, CSS, JavaScript, UI frameworks
Work EnvironmentBack-end servers, cloud platformsWeb browsers, client devices
Common UsageBuilding APIs, server logicDesigning web pages, user experience

The main difference between a Javascript Backend Developer and a Javascript Frontend Developer lies in their focus areas. Backend developers handle server-side logic, databases, and APIs, while frontend developers focus on creating engaging user interfaces and client-side interactions. Both roles require JavaScript skills but apply them in different parts of web development projects.

Is JavaScript good for backend development?

JavaScript is widely used for backend development, especially with environments like Node.js, which allows developers to build scalable server-side applications using the same language as frontend development. It offers a large ecosystem of libraries and frameworks, making it a popular choice for full-stack developers and backend roles requiring proficiency in JavaScript. Knowledge of asynchronous programming and server management is beneficial for backend JavaScript development.

Are JavaScript developers in demand?

JavaScript developers are in high demand due to the widespread use of JavaScript for web development, both on the client and server sides with frameworks like Node.js. Companies seek developers skilled in JavaScript, front-end frameworks, and related tools to build dynamic, responsive applications, making it a valuable skill in the tech industry.
What are popular job titles related to Javascript Backend Developer jobs in Connecticut? For Javascript Backend Developer jobs in Connecticut, the most frequently searched job titles are:
What job categories do people searching Javascript Backend Developer jobs in Connecticut look for? The top searched job categories for Javascript Backend Developer jobs in Connecticut are:
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Javascript Backend Developer jobs near you
Cyber Full-Stack Technical Software Engineer

Cyber Full-Stack Technical Software Engineer

Deloitte

Hartford, CT • On-site

Other

Re-posted 13 days ago

Deloitte rating

8.0

Company rating: 8.0 out of 10

Based on 89 frontline employees who took The Breakroom Quiz

71st of 146 rated financial services

Job description

Deloitte Cyber understands the unique challenges and opportunities businesses face in cybersecurity. Deloitte's Cyber team helps our clients navigate the ever-changing threat landscape. We simplify complexity, and enable businesses to operate with resilience, grow with confidence, and proactively manage their security posture.


Recruiting for this role ends on 12/31/2026.

The Team:

Deloitte's Cyber Engineering is a new team that is spearheading the buildout of Cybersecurity technology that will underpin the next generation of our Cybersecurity services. Join us as we work with technologies shaping the future of Cybersecurity to build future capabilities today.

Position Summary

You will be responsible for individually delivering high quality products within due timelines. Need-basis you will be mentoring and/or directing junior team members/liaising with onsite/offshore teams to understand the functional requirements. 

Work you will do:

  • Working closely with business, solution engineers, team members and leadership to understand business requirements and deliver high quality technical solutions
  • Analyzing, implementing user requirements/business needs as new and/or enhanced product functionality
  • Identifying key drivers of a problem and proposes technical solutions using analysis, experience, and decision making
  • Developing solutions to client problems through application of methods and tools; validating solutions to SMEs
  • Understanding the benefits of using state of the art methods and tools and their application on a particular engagement contributes to continuous development of methods and tools
  • Demonstrating accountability and contributions to the successful realization of client goals

Required Qualifications

We require 3-5 years of experience for all skill areas below:

  • Hands-on experience in full stack software development across frontend and backend technologies.
  • Experience designing, developing, deploying, implementing, or supporting AI, Generative AI, or Agentic AI solutions and architectures in enterprise applications on AWS, Azure, or GCP.
  • Experience with object-oriented programming using languages such as Java, Python, or JavaScript/TypeScript.
  • Experience with frontend development using Angular, React, or Next.js, and with JavaScript, TypeScript, HTML5, and CSS3 in production environments.
  • Experience with at least one backend technology stack: Node.js, Python (Django or Flask), or Java (Spring Boot).
  • Experience building and consuming REST APIs and microservices.
  • Experience with relational databases such as MySQL, PostgreSQL, SQL Server, or Oracle, and with at least one NoSQL database such as MongoDB, Redis, Cassandra, or DynamoDB.
  • Experience using Git and development lifecycle tools such as Azure DevOps.
  • Experience with unit testing frameworks such as JUnit, Mockito, or equivalent, and with automated testing and CI/CD pipeline implementation.
  • Experience deploying applications, APIs, or analytics workloads to AWS, Azure, or GCP.
  • Experience working in Agile/Scrum delivery environments.
  • Cloud certification in AWS, Azure, or GCP
  • Bachelor's degree in computer science, Engineering, Information Technology, Data Science, Applied Mathematics, Physics, Statistics, or a related field.
  • Limited immigration sponsorship may be available

Preferred Qualifications

  • Experience with Docker, container-based application development, and serverless architectures.
  • Experience with secure development practices or cybersecurity-focused application development.
  • Hands-on experience building and deploying GenAI/LLM-powered solutions in client or production environments.
  • Experience with one of the following Frontier GenAI Platforms: Anthropic, Google or Open AI, including hands on experience with one of the following key platforms/products; Claude API, Claude for Enterprise, tool use, extended thinking, Claude Code, Gemini API, Vertex AI Agent Builder, Grounding, Google Workspace integration, GPT-4o, Assistants API, Responses API, OpenAI Agents SDK.
  • Experience contributing to project planning, estimation, or risk tracking.
  • Experience mentoring junior or mid-level developers, leading code reviews, and providing development feedback.
  • Experience partnering with product managers, designers, and business stakeholders to translate requirements into technical solutions.
  • Strong written and verbal communication skills in cross-functional team environments.
  • Cloud certification in AWS, Azure, or GCP.
  • Familiarity with OpenSearch or Elasticsearch.
  • Exposure to graph databases such as Neo4j or Memgraph.
  • Familiarity with build tools such as Maven or Gradle.
  • Experience with Bootstrap, jQuery, or JSP in legacy or mixed-technology environments.
  • Familiarity with DevOps or DevSecOps practices.
  • Knowledge of web security, GitOps, and Kubernetes customization.
  • Basic understanding of AI/ML frameworks such as TensorFlow or PyTorch.

The wage range for this role takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. The disclosed range estimate has not been adjusted for the applicable geographic differential associated with the location at which the position may be filled. At Deloitte, it is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range is $122,000 to $240,500.

You may also be eligible to participate in a discretionary annual incentive program, subject to the rules governing the program, whereby an award, if any, depends on various factors, including, without limitation, individual and organizational performance.


#CyberCtBEngg

Qualifications:

Deloitte Cyber understands the unique challenges and opportunities businesses face in cybersecurity. Deloitte's Cyber team helps our clients navigate the ever-changing threat landscape. We simplify complexity, and enable businesses to operate with resilience, grow with confidence, and proactively manage their security posture.


Recruiting for this role ends on 12/31/2026.

The Team:

Deloitte's Cyber Engineering is a new team that is spearheading the buildout of Cybersecurity technology that will underpin the next generation of our Cybersecurity services. Join us as we work with technologies shaping the future of Cybersecurity to build future capabilities today.

Position Summary

You will be responsible for individually delivering high quality products within due timelines. Need-basis you will be mentoring and/or directing junior team members/liaising with onsite/offshore teams to understand the functional requirements. 

Work you will do:

  • Working closely with business, solution engineers, team members and leadership to understand business requirements and deliver high quality technical solutions
  • Analyzing, implementing user requirements/business needs as new and/or enhanced product functionality
  • Identifying key drivers of a problem and proposes technical solutions using analysis, experience, and decision making
  • Developing solutions to client problems through application of methods and tools; validating solutions to SMEs
  • Understanding the benefits of using state of the art methods and tools and their application on a particular engagement contributes to continuous development of methods and tools
  • Demonstrating accountability and contributions to the successful realization of client goals

Required Qualifications

We require 3-5 years of experience for all skill areas below:

  • Hands-on experience in full stack software development across frontend and backend technologies.
  • Experience designing, developing, deploying, implementing, or supporting AI, Generative AI, or Agentic AI solutions and architectures in enterprise applications on AWS, Azure, or GCP.
  • Experience with object-oriented programming using languages such as Java, Python, or JavaScript/TypeScript.
  • Experience with frontend development using Angular, React, or Next.js, and with JavaScript, TypeScript, HTML5, and CSS3 in production environments.
  • Experience with at least one backend technology stack: Node.js, Python (Django or Flask), or Java (Spring Boot).
  • Experience building and consuming REST APIs and microservices.
  • Experience with relational databases such as MySQL, PostgreSQL, SQL Server, or Oracle, and with at least one NoSQL database such as MongoDB, Redis, Cassandra, or DynamoDB.
  • Experience using Git and development lifecycle tools such as Azure DevOps.
  • Experience with unit testing frameworks such as JUnit, Mockito, or equivalent, and with automated testing and CI/CD pipeline implementation.
  • Experience deploying applications, APIs, or analytics workloads to AWS, Azure, or GCP.
  • Experience working in Agile/Scrum delivery environments.
  • Cloud certification in AWS, Azure, or GCP
  • Bachelor's degree in computer science, Engineering, Information Technology, Data Science, Applied Mathematics, Physics, Statistics, or a related field.
  • Limited immigration sponsorship may be available

Preferred Qualifications

  • Experience with Docker, container-based application development, and serverless architectures.
  • Experience with secure development practices or cybersecurity-focused application development.
  • Hands-on experience building and deploying GenAI/LLM-powered solutions in client or production environments.
  • Experience with one of the following Frontier GenAI Platforms: Anthropic, Google or Open AI, including hands on experience with one of the following key platforms/products; Claude API, Claude for Enterprise, tool use, extended thinking, Claude Code, Gemini API, Vertex AI Agent Builder, Grounding, Google Workspace integration, GPT-4o, Assistants API, Responses API, OpenAI Agents SDK.
  • Experience contributing to project planning, estimation, or risk tracking.
  • Experience mentoring junior or mid-level developers, leading code reviews, and providing development feedback.
  • Experience partnering with product managers, designers, and business stakeholders to translate requirements into technical solutions.
  • Strong written and verbal communication skills in cross-functional team environments.
  • Cloud certification in AWS, Azure, or GCP.
  • Familiarity with OpenSearch or Elasticsearch.
  • Exposure to graph databases such as Neo4j or Memgraph.
  • Familiarity with build tools such as Maven or Gradle.
  • Experience with Bootstrap, jQuery, or JSP in legacy or mixed-technology environments.
  • Familiarity with DevOps or DevSecOps practices.
  • Knowledge of web security, GitOps, and Kubernetes customization.
  • Basic understanding of AI/ML frameworks such as TensorFlow or PyTorch.

The wage range for this role takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. The disclosed range estimate has not been adjusted for the applicable geographic differential associated with the location at which the position may be filled. At Deloitte, it is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range is $122,000 to $240,500.

You may also be eligible to participate in a discretionary annual incentive program, subject to the rules governing the program, whereby an award, if any, depends on various factors, including, without limitation, individual and organizational performance.


#CyberCtBEngg

Education:Bachelor's DegreeEmployment Type:

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