Senior JavaScript Developer jobs in Hartford, CT

Remote Senior JavaScript/React Developer

Remote

•

Today

AboutUs: BasedinSanFrancisco,California,TuringistheworldsleadingresearchacceleratorforfrontierAIlabsandatrustedpartnerforglobalenterprisesdeployingadvancedAIsystems.Turingsupportscustomersintwoways:first,byacceleratingfrontierresearchwithhigh-qualitydata,advancedtrainingpipelines,plustopAIresearcherswhospecializeinsoftwareengineering,logicalreasoning,STEM,multilinguality,multimodality,andagents;andsecond,byapplyingthatexpertisetohelpenterprisestransformAIfromproofofconceptintoproprietaryintellig

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Contract

200 - 300

Senior Full Stack Developer - JavaScript

Remote

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25d ago

Detailed Job Description: Position Title: Sr. Full Stack Engineer Location: 100% Remote Duration: 6 Months Contracts + Extension As a Senior Full Stack Engineer, candidate will be responsible for building and maintaining robust data pipelines and ETL processes that power analytics and reporting across Client programs. Candidate will also develop and optimize complex SQL queries to support large-scale educational data analysis and take responsibility for creating design specifications, unit te

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Contract

$75 - $82

Senior Software Engineer (Javascript, Guidewire, AWS, React)

Hartford, Connecticut

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14d ago

Who Are We? Taking care of our customers, our communities and each other. That's the Travelers Promise. By honoring this commitment, we have maintained our reputation as one of the best property casualty insurers in the industry for over 170 years. Join us to discover a culture that is rooted in innovation and thrives on collaboration. Imagine loving what you do and where you do it. Job Category Technology Compensation Overview The annual base salary range provided for this position is a nationw

Full-time

USD 139,400.00 - 230,000.00 per year

Remote Senior JavaScript/React Engineer

Remote

•

Today

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Contract

200 - 300

Technology Portfolio Programmer Analyst (JavaScript Developer) - Remote

Remote or Inver Grove Heights, Minnesota

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Today

Genesis10 is currently seeking a Technology Portfolio Programmer Analyst (JavaScript Developer) for a Remote position with an Agricultural Cooperative located in Inver Grove Heights, MN. This is a 10+ month contract opportunity. Compensation: $52.00 - $55.00 per hour, W2, based on qualifications Position Overview: This role is responsible for designing, developing, and maintaining custom solutions within SAP LeanIX to improve visibility, automation, and reporting across the technology portfolio

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Full-time

USD 52.00 - 55.00 per hour

Senior Performance Engineer- JMeter, JavaScript - Remote

Remote

•

Today

Description & Requirements Maximus is currently seeking a Senior Performance Engineer. The Senior Performance Engineer leads performance engineering activities across large-scale healthcare technology programs. This role defines performance test strategies, develops and maintains performance testing frameworks, creates realistic workload models, and evaluates application scalability, reliability, stability, and capacity. The engineer partners with Development, Architecture, DevOps, Cloud Engine

Full-time

USD 120,000.00 per year

Senior JavaScript Test Automation Engineer

Remote

•

Today

We are looking for a Senior Test Automation Engineer with strong experience in JavaScript- or TypeScript-based automation frameworks. The ideal candidate should have hands-on experience building and maintaining automated tests for modern web applications and APIs, with a strong focus on quality, reliability, and maintainability. This role requires solid automation experience, strong testing fundamentals, and the ability to collaborate effectively with development, product, and QA teams. Responsi

Full-time

Senior React & Node Developer

Remote

•

Yesterday

Are you a talented Senior Developer looking for a remote job that lets you show your skills and get decent compensation? Look no further than the marketplace that connects you with hand-picked startups in the US and Europe. What we offer: The rate depends on your seniority level, skills and experience. We've already paid out over $11M to our engineers.No more hunting for clients or negotiating rates let us handle the business side of things so you can focus on what you do best.We'll manually fi

Contract

75000 - 199000

Senior Web Application Developer

Remote or Hybrid in Washington

•

Today

Location: Remote Duration: 1+ year Job Description / Key Responsibilities Develop, enhance, and maintain GIS-enabled web applications. Build interactive mapping interfaces, integrate GIS services with databases, develop APIs, troubleshoot applications, and support modernization of legacy roadway applications. Qualifications and Technical Skills C#, ASP.NET, JavaScript, TypeScript, React/Vue, REST APIs, ArcGIS web services, SQL Server, web application development. Experience 7+ years Certif

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Contract, Third Party

Senior Full Stack .NET Developer

Remote

•

Today

Job Title: Senior Full Stack .NET Developer Job Location: Remote Job Type: Full Time Job Description: Develop scalable web applications using .NET and ASP.NET Core. Build responsive frontend applications using React or Angular with TypeScript. Develop REST APIs and backend services using C#. Work with Entity Framework Core, SQL Server, and Azure SQL. Integrate applications with external APIs and enterprise systems. Implement authentication, authorization, logging, caching, and error handling.

Full-time

Senior Full-stack Developer

Remote

•

Yesterday

Are you a talented Senior Developer looking for a remote job that lets you show your skills and get decent compensation? Look no further than the marketplace that connects you with hand-picked startups in the US and Europe. We only accept applications submitted through the link provided at the job listing. Please apply here.What we offer: The rate depends on your seniority level, skills and experience. We've already paid out over $11M to our engineers.No more hunting for clients or negotiating

Contract

85000 - 199000

Senior .NET Developer

Remote or Hybrid in Vienna, Virginia

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28d ago

ITCON Services is seeking a highly experienced Senior Developer for a contingent position to provide operations, maintenance, and modernization of system that includes user forms, the entry, validation, certification, approval, and posting of data and centralized data warehouse to support reporting of program information. The Senior Developer will design, develop, enhance, deploy, and maintain Microsoft-based web applications, data integrations, databases, and reports using C#, ASP.NET/.NET, S

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Full-time

130,000 - 140,000

Senior Backbase Developer

Remote

•

Yesterday

Job Type: Contract Experience: 10+ Years Location: United States Remote Duration: 6 Months Work Mode: 100% Remote Job Description We are seeking an experienced Senior Backbase Developer to design, develop, and maintain digital banking applications using the Backbase platform. The ideal candidate will have strong expertise in Backbase digital banking solutions, backend services, API integration, secure application development, and modern web technologies. The role involves customizing Ba

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Third Party, Contract

$107 - $115

Senior Application Developer

Remote or Lynnfield, Massachusetts

•

Today

Job Description Senior Application Developer About the Role We are seeking a highly skilled Senior Application Developer / Technical Lead to design, develop, support, and enhance enterprise web applications using modern Microsoft technologies. The ideal candidate will have strong experience with Angular, C#, .NET, IIS, Identity Management solutions, GitHub, Azure DevOps (ADO), and application security remediation practices. This role requires a hands-on technical leader who can collaborate ac

Full-time

USD 96,250.00 - 125,000.00 per year

Senior Frontend Engineer

Remote

•

Today

At ClickUp, we're building the future of work: the first truly converged AI workspace unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI. We are an AI-native company. Every team member is expected to leverage AI daily, and we evaluate AI fluency as part of our hiring process. Join us and help redefine what's possible. Role Overview We're looking for a Senior Frontend Engineer to help build and improve core product experiences at ClickUp. You'll wo

Full-time

USD 160,000.00 - 210,000.00 per year

Software Engineer (L5) - JavaScript Platform

Remote

•

Today

At Netflix, our mission is to entertain the world. Together, we are writing the next episode - pushing the boundaries of storytelling, global fandom and making the unimaginable a reality. We are a dream team obsessed with the uncomfortable excitement of discovering what happens when you merge creativity, intuition and cutting-edge technology. Come be a part of what's next. We are the JS Applications Platform team. Our mission is to make it fast, safe, and joyful to build and ship the JavaScript

Full-time

USD 388,000.00 - 558,000.00 per year

Test Automation Architect (JavaScript / Python)

Remote

•

Today

Join our Testing Competency Center as a Test Automation Architect and drive modern automation strategies with a strong focus on JavaScript or Python ecosystems . You will play a key role in shaping scalable automation solutions and integrating AI into the SDLC. Responsibilities Design and implement end-to-end test automation architectures using JavaScript and Python Define automation strategies, including framework selection, tooling, and infrastructure setup Build and scale automation from scra

Full-time

Platform Design Systems Lead (Remote)

Remote or Hybrid

•

Today

An established financial services organization is seeking a Platform Design Systems Lead to support a remote team. This role focuses on advancing platform-level design systems through governance, documentation, accessibility, and cross-functional collaboration to help deliver scalable and consistent digital experiences. About the Opportunity: Schedule: Monday to Friday Hours: Standard business Setting: Remote Responsibilities: Define and evolve the platform design-system roadmap in alignment wi

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Contract

$49 - $49 per hour

JavaScript Developer (Remote)

Remote or Stafford, Virginia

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2d ago

The following states/districts are excluded from this job ad: AK, CA, CO, CT, DC, HI, LA, MA, MN, MO, NE, NV, NH, NJ, NM, NY, ND, OR, PR, RI, VT, WA, WY Future Need - Actively Interviewing Location: Remote in any United States jurisdiction not excluded from this job advertisement. Are you passionate about JavaScript coding and ready to take on new challenges? We're seeking a skilled JavaScript Developer to support the development and enhancement of Department of Veterans Affairs solutions. If

Full-time

USD 89,759.00 - 117,910.00 per year

Senior Java Developer

Remote

•

Today

CTEC is a leading technology firm that provides modernization, digital transformation, and application development services to the U.S. Federal Government. Headquartered in McLean, VA, CTEC has over 300 team members working on mission-critical systems and projects for agencies such as the Department of Homeland Security, Internal Revenue Service, and the Office of Personnel Management. The work we do effects millions of U.S. citizens daily as they interact with the systems we build. Our best-in-

Full-time

Senior JavaScript Developer jobs in Hartford, CT, USA