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Freelance Java Backend Developer Jobs in Hartford, CT

SmartIMS Inc.

QA Tester

Hartford, CT · On-site

Perform backend database validation using SQL queries. * Execute API and web service testing using ... Collaborate closely with developers, business analysts, architects, project managers, vendors, and ...

Subway

Testing and Automation Engineer

Cheshire, CT · On-site

$102K - $128K/yr

  • Medical

  • Life

  • Retirement

... DevOps teams to embed quality early and continuously. Responsibilities include but not limited to ... Design, develop, and maintain automated tests for UI, API, and backend services. Execute functional ...

Subway

Testing and Automation Engineer

Wallingford, CT · On-site

$102K - $128K/yr

  • Medical

  • Life

  • Retirement

... DevOps teams to embed quality early and continuously. Responsibilities include but not limited to ... Design, develop, and maintain automated tests for UI, API, and backend services. Execute functional ...

Subway

Testing and Automation Engineer

Cheshire, CT · On-site

$102K - $128K/yr

  • Medical

  • Life

  • Retirement

... DevOps teams to embed quality early and continuously. Responsibilities include but not limited to ... Design, develop, and maintain automated tests for UI, API, and backend services. Execute functional ...

Subway

Testing and Automation Engineer

Wallingford, CT · On-site

$102K - $128K/yr

  • Medical

  • Life

  • Retirement

... DevOps teams to embed quality early and continuously. Responsibilities include but not limited to ... Design, develop, and maintain automated tests for UI, API, and backend services. Execute functional ...

Subway

Testing and Automation Engineer

Waterbury, CT · On-site

$102K - $128K/yr

  • Medical

  • Life

  • Retirement

... DevOps teams to embed quality early and continuously. Responsibilities include but not limited to ... Design, develop, and maintain automated tests for UI, API, and backend services. Execute functional ...

Judge Group, Inc.

Quality Assurance Analyst

Hartford, CT · On-site

$40 - $42/hr

In this role, you will collaborate closely with business stakeholders, developers, business ... Perform backend database validation using SQL queries. * Conduct REST and SOAP API testing using ...

The Walt Disney Company

Sr Software Engineer

Bristol, CT · On-site

$148K - $199K/yr

As a Senior Software Engineer, you will be expected to develop backend solutions in a dynamic ... Knowledge of performance testing, application profiling, Java heap and thread dump analysis

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How much do freelance java backend developer jobs pay per hour?

As of Aug 18, 2026, the average hourly pay for freelance java backend developer in Hartford, CT is $55.11, according to ZipRecruiter salary data. Most workers in this role earn between $48.99 and $63.51 per hour, depending on experience, location, and employer.

What are the most commonly searched types of Java Backend Developer jobs in Hartford, CT?

The most popular types of Java Backend Developer jobs in Hartford, CT are:

Freelance Java Backend Developer jobs near you

QA Tester

SmartIMS Inc.

Hartford, CT • On-site

Other

Posted 11 days ago

Job description

6+ Months

Hartford,CT

Remote initially. Candidates must be willing to work onsite in Hartford, CT later hybrid/in-office work schedule.

The ideal candidate has experience testing complex enterprise systems within State government, Human Services, Healthcare, Medicaid, Medicare, or Eligibility programs. Candidates who understand policy-driven applications and business terminology used in public sector environments will be highly successful in this role.

Key Responsibilities

  • Perform hands-on manual and automated testing across multiple enterprise applications.
  • Develop comprehensive test scenarios, test cases, and automated test scripts based on business and technical requirements.
  • Review business requirements, user stories, functional specifications, technical documentation, and design documents to identify testing needs.
  • Participate in requirements walkthroughs, sprint planning, backlog refinement, release planning, and design review sessions.
  • Estimate testing effort and provide input into overall project planning and release schedules.
  • Execute functional, regression, integration, system, API, and end-to-end testing activities.
  • Develop, maintain, and execute automated test scripts using approved automation frameworks.
  • Validate interfaces and integrations between enterprise applications and external systems.
  • Perform backend database validation using SQL queries.
  • Execute API and web service testing using industry-standard tools.
  • Document test execution results and communicate testing progress to project leadership.
  • Identify, document, prioritize, and manage software defects through resolution.
  • Participate in defect triage meetings and validate software fixes.
  • Ensure complete traceability between business requirements, test cases, and executed tests through the Requirements Traceability Matrix (RTM).
  • Collaborate closely with developers, business analysts, architects, project managers, vendors, and State business stakeholders.
  • Support production implementations by performing release validation and post-production verification.
  • Assist in continuously improving QA standards, automation frameworks, testing processes, and quality best practices.
  • Mentor junior testers and share knowledge of testing methodologies and automation best practices when appropriate.

Testing Experience

Candidates should have hands-on experience performing:

  • Manual Testing
  • Automation Testing
  • Functional Testing
  • Regression Testing
  • Smoke Testing
  • Integration Testing
  • System Integration Testing (SIT)
  • End-to-End Testing
  • User Acceptance Testing (UAT)
  • API Testing
  • Backend Data Validation
  • Cross-browser Testing
  • Mobile Testing
  • Salesforce Testing
  • Defect Verification and Retesting

Technical Qualifications

Candidates should possess experience with many of the following technologies:

  • Selenium
  • TestNG
  • Java
  • Salesforce application testing
  • REST API Testing
  • SOAP Web Services
  • Postman
  • SQL for backend data validation
  • Mobile Application Testing
  • Progressive Web Applications (PWA)
  • JSON/XML validation
  • Git (preferred)
  • Continuous Integration/Continuous Deployment (CI/CD) concepts

Strong understanding of:

  • API and Web Service Testing
  • Test Automation Frameworks
  • Defect Lifecycle Management
  • Requirements Traceability Matrix (RTM)
  • Test Planning
  • Test Strategy
  • Test Estimation
Smart IMS logo

About Smart IMS

Sourced by ZipRecruiter

Smart IMS has grown to be one of the trusted technology and service partner for enterprises across the globe. Founded by business and technology experts with extensive experience in designing, implementing, and managing large and complex projects at Fortune 500 companies, we’ve perfected the craft of creating solutions that truly make a difference.

Industry

Technology, communication and media

Company size

201 - 500 Employees

Headquarters location

Plainsboro, NJ, US

Year founded

1994

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