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Freelance Full Stack Developer Jobs in Windsor, CT

Programmer/Developer

Hartford, CT ยท On-site

$100 - $130/hr

Scope of Work The agency needs a senior level Full Stack Salesforce Developer to participate in various SDLC processes, including requirements verification, design, development, testing, maintenance ...

New

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. . 7 years experience designing and developing Software Applications . 5 ...

Senior Big Data Developer

Bristol, CT

$53 - $68.75/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Responsibilities: Design, develop and implement big data solutions on both ...

Software Engineer

Hartford, CT ยท Hybrid

$88K - $132K/yr

We are seeking a Full Stack Software Engineer to join our Middle Office team within HIMCO IT. This role is critical in partnering with technology and investment professionals to deliver innovative ...

Web Development Tutor

Hartford, CT ยท Remote

$18 - $40/hr

Ability to explain client-server architecture, MVC patterns, and authentication while preparing students for full-stack development roles and software engineering careers. * Conceptual Teaching ...

JavaScript Tutor

Hartford, CT ยท Remote

$18 - $40/hr

Ability to explain callback functions, scope and hoisting, and the event loop while preparing students for web development careers and full-stack engineering coursework. * Conceptual Teaching ...

AI Integrator

Chicopee, MA ยท On-site

$167K - $196K/yr

This is a high-impact, autonomous role requiring a "full-stack" AI practitioner who can navigate the complexities of data engineering, cloud architecture, and DevOps within secure DoD environments.

Senior Data Engineer

Bloomfield, CT ยท On-site

$105K - $143K/yr

Behaviors of a Full Stack Engineer: Senior Data Engineer is able to articulate clear business objectives aligned to technical specifications and work in an iterative, agile pattern daily. They have ...

Java Developer

Hartford, CT ยท On-site

$85 - $115/hr

... stack|Java Full stack Technical Skills 2 Technology|Analytics - Solutions|SQL Server - Analytics Overview The Infosys Healthcare unit is dedicated to transforming the healthcare industry by ...

New

Java Developer

Hartford, CT ยท On-site

$51.50 - $66.50/hr

... stack|Java Full stack Technical Skills 2 Technology|Analytics - Solutions|SQL Server - Analytics Overview The Infosys Healthcare unit is dedicated to transforming the healthcare industry by ...

Showing results 41-60

Freelance Full Stack Developer information

See Windsor, CT salary details

$23

$58

$85

How much do freelance full stack developer jobs pay per hour?

As of Aug 19, 2026, the average hourly pay for freelance full stack developer in Windsor, CT is $58.86, according to ZipRecruiter salary data. Most workers in this role earn between $48.94 and $67.79 per hour, depending on experience, location, and employer.

What is a freelance full stack developer?

A Freelance Full Stack Developer is a self-employed professional who builds both the front-end and back-end of websites or applications. They work with various technologies, including databases, servers, APIs, and client-side interfaces, to create fully functional digital products. Unlike full-time employees, freelancers work on a project basis for multiple clients, offering flexibility in workload and schedule. Their responsibilities often include coding, debugging, deployment, and sometimes design.

What types of projects and clients can freelance full stack developers typically expect to work with?

Freelance Full Stack Developers often engage with a diverse range of projects, including website and web application development, e-commerce platforms, mobile app backends, and API integrations. Clients can range from startups and small businesses to established companies and entrepreneurs seeking bespoke digital solutions. The variety in clients and project scopes allows developers to constantly expand their skills and work experience, but it also means adapting quickly to new industries and client expectations. Freelancers typically manage their own workflow, communicate directly with clients, and are responsible for project timelines, making this role ideal for self-motivated technology professionals.

What are the key skills and qualifications needed to thrive as a freelance full stack developer?

To thrive as a Freelance Full Stack Developer, you need a solid grasp of both front-end and back-end programming languages (such as JavaScript, HTML/CSS, Node.js, Python, or similar) and a strong portfolio showcasing completed projects. Familiarity with frameworks like React or Angular, version control systems like Git, cloud services, and sometimes relevant certifications (such as AWS Certified Developer) are highly valued. Excellent communication, problem-solving abilities, time management, and client relationship skills help set freelancers apart. These competencies are crucial for effectively delivering end-to-end solutions, managing multiple projects, and building a reliable client base.

What cities near Windsor, CT are hiring for Freelance Full Stack Developer jobs?

Cities near Windsor, CT with the most Freelance Full Stack Developer job openings:

Infographic showing various Freelance Full Stack Developer job openings in Windsor, CT as of June 2026, with employment types broken down into 9% As Needed, 79% Full Time, 2% Part Time, 1% Temporary, 8% Contract, and 1% Nights. Highlights an 77% Physical, 2% Hybrid, and 21% Remote job distribution, with an average salary of $122,709 per year, or $59 per hour.

Full Stack Software Engineer (TS/SCI with Poly) - Vantor

Vantor

Springfield, MA โ€ข On-site

$113K - $150K/yr

Full-time

Retirement

Re-posted 15 days ago


Job description

Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate whatโ€™s happening now and shape whatโ€™s coming next.  Vantor is a place for problem solvers, changemakers, and go-gettersโ€”where people are working together to help our customers see the world differently, and in doing so, be seen differently. Come be part of a mission, not just a job, where you can: Shape your own future, build the next big thing, and change the world.

To be eligible for this position, you must be a U.S. Citizen. This position requires an active U.S. Government security clearance, applicants who do not currently hold the required clearance will not be eligible for consideration. Employment for cleared roles is contingent upon verification of clearance status.

Export Control/ITAR: Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3).

Please review the job details below.

This position requires an active U.S. Government Security Clearance at the TS/SCI level.

Weโ€™re hiring a solution driven Software Engineer to work onsite with U.S. Government customers to create technology solutions for data collection, data analytics, data visualization, and user workflow automation.  You will get to work on an interesting mission focus with large data sets and create solutions with technology in support of national security.   You will work directly with analysts to understand mission needs and generate solutions.  Technical tasks include ELT, managing, analyzing, and visualizing large sets of geospatial data to extract meaningful knowledge with cloud-based processing technologies and emerging data science techniques. We want a self-motivated engineer who is comfortable digging into data, trying innovative approaches, and isnโ€˜t afraid to fail fast and move on to other techniques/ideas.

Responsibilities:

  • Design and implement efficient, flexible solutions that can scale for mission critical applications.
  • Active in all aspects of the development lifecycle, including planning, requirements development, software design, implementation and build, documentation, testing, deployment and maintenance.
  • Apply software standards and processes to produce high quality, extensible, and maintainable software solutions.
  • Work with cloud tech stacks to perform data extraction, manipulation, transformation; visualization of geospatial-temporal data sets
  • Develop analytics/derivative data products to help users extract meaningful knowledge
  • Proactive approach to trouble shooting and problem-solving issues
  • Work directly with users throughout the IC/DoD to understand their requirements and propose technical solutions
  • Collaborate with diverse teams of engineers, clients, and users
  • Ability to work full time onsite

Minimum Qualifications:

  • US citizenship and a current TS/SCI clearance (with willingness to get a CI Polygraph).
  • Bachelorโ€˜s degree in Computer Science or related technology fields
  • 5+ years of proficient experience with:
    • Developing custom software solutions
    • Performing data extraction, manipulation, visualization, and analysis with strong proficiency in Java, Python or C++
    • Linux skills and familiarity with cloud architectures, AWS, C2S
    • NoSQL Data Stores - Elastic, MongoDB, etc.
    • Development tools such as Git, Eclipse, Maven
  • Ability to work both independently and in a team environment.
  • Ability to work full-time onsite.

Preferred Qualifications:

  • Familiarity with common industry software tools, concepts, and DevSecOps
  • An adaptable and solution centric mindset that embraces technology enablers
  • GIS, Geospatial data, Geospatial tools, techniques, processing, visualization
  • Agile development methodologies
  • Experience working with open-source resources in a government computing environment

Pay Transparency: To support pay transparency, Vantor includes salary ranges in all U.S. job postings. Starting pay for this role will fall within the listed range and will be based on factors such as experience, qualifications, skills, location, and market conditions. Candidates who meet the minimum requirements for the role should not expect to receive compensation at the top of the range. The listed range reflects the expected pay for this position, and final offers will be determined based on each candidateโ€™s experience, expertise, and alignment with the role.

โ— The base pay for this position within the Washington, DC metropolitan area is: $113,000.00 - $150,000.00 - $165,000.00 annually.

For all other states, we use geographic cost of labor as an input to develop market-driven ranges for our roles, and as such, each location where we hire may have a different range.

Benefits: Vantor offers a competitive total rewards package that goes beyond the standard, including a robust 401(k) with company match, mental health resources, and unique perks like student loan repayment assistance, adoption reimbursement and pet insurance to support all aspects of your life. You can find more information on our benefits at: 

The application window is three days from the date the job is posted and will remain posted until a qualified candidate has been identified for hire.  If the job is reposted regardless of reason, it will remain posted three days from the date the job is reposted and will remain reposted until a qualified candidate has been identified for hire. 

The date of posting can be found on Vantorโ€˜s Career page at the top of each job posting.

To apply, submit your application via Vantorโ€˜s Career page.

EEO Policy: Vantor is an equal opportunity employer committed to an inclusive workplace. We believe in fostering an environment where all team members feel respected, valued, and encouraged to share their ideas. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender identity, sexual orientation, disability, protected veteran status, age, or any other characteristic protected by law.