27 full stack api developer jobs at 22 companies in Connecticut
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Full Stack Developer (.NET API) - Senior Software Engineer
Stamford, Connecticut, United States
OnsiteFull Time
Information Services GroupNASDAQ: III: Provides technology research and advisory services for digital transformation.
6+ YOEBachelor's in computer science or related field, 6+ years full-stack experience with .NET Core API, Angular and SQL Server, strong C#/Web API and front-end (HTML/CSS/JavaScript) skills, REST API experience, communication and leadership abilities.
Angular, .NET Core, SQL Server, C#, Web API, HTML, CSS, JavaScript, Microsoft Azure, Git
Oakland or Seattle or WA or OH or CA or Long Beach or AZ or CO or CT or FL or GA or MD or MN or NV or OR or El Dorado Hills or Lodi or Rancho Cordova or Redding or San Diego or Woodland Hills or AL or IL or VA or WI or TX or NY
$103k-$174k/yrHybridFull Time
Ascendiun: Nonprofit parent overseeing health insurance and clinical service organizations.
5+ YOE5+ years full stack development; BA/BS or equivalent IT experience; React/Vue/Angular; .NET/Java/Node.js/Python APIs; SQL/NoSQL; Azure preferred; Docker; IaC; CI/CD; AI tools; healthcare experience preferred.
5+ YOEBachelor's or higher in CS/ECE/math/physics, 5+ years full‑stack experience, strong Python and another high‑level language (Go/C++/Java), front‑end frameworks (Vue.js/React), AWS, SQL/PostgreSQL, Git, Docker, Kubernetes, RESTful APIs, testing, and mentorship experience.
Hartford or Indianapolis or Phoenix or Raleigh or Richardson
OnsiteFull Time
InfosysNYSE: INFY: Provides IT consulting, software development, and business outsourcing services.
Design and develop backend and server-side applications using Java, Spring, Node.js; implement reactive patterns, APIs, and event-driven solutions; bachelor\u0002s degree or equivalent experience required.
Java 11, Java 17, Spring Boot, Spring Reactive (WebFlux), Node.js, Express.js, Confluent Kafka, Kafka, RabbitMQ, Oracle, PostgreSQL, MySQL, Microsoft SQL Server, React
Farmington or Connecticut or Florida or Georgia or Iowa or Illinois or Maryland or Massachusetts or North Carolina or New York or Ohio or Rhode Island or South Carolina or Tennessee or Virginia
$100k/yrOnsiteFull Time
Digital United: Operates a collective of specialized digital marketing agencies.
5+ YOE5+ years Drupal development experience (Drupal 9 & 10), strong PHP/Twig/MySQL skills, HTML/CSS/JavaScript/Sass, Composer, Drush, Git, NPM, API integration, custom module and theme development, performance optimization.
Full Stack Staff Software Engineer — AI-Augmented Development
Charlotte or Hartford or Columbus or Chicago
$116k-$174k/yrHybridFull Time
The HartfordNYSE: HIG: Provides business and personal insurance, group benefits, and investments.
10+ YOE10+ years software engineering experience, 5+ years tech lead experience; Bachelor’s in CS or related (or equiv. experience); expertise in frontend and backend stacks, cloud (AWS/GCP), CI/CD, databases, APIs, and AI-augmented development tools.
Kansas City or Dallas or Alabama or Arkansas or Arizona or California or Colorado or Connecticut or Florida or Georgia or Idaho or Iowa or Kentucky or Louisiana or Massachusetts or Maryland or Michigan or Minnesota or Mississippi or Montana or Nebraska or Nevada or New Jersey or New York or North Carolina or Ohio or Pennsylvania or Puerto Rico or Rhode Island or South Carolina or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin or West Virginia
$130k-$150k/yrHybridFull Time
Michael Baker International: Engineering and consulting services for global infrastructure projects.
3+ YOEBachelor's or equivalent, 3+ years full‑stack web experience with modern frontend frameworks, TypeScript/JavaScript, backend in Node.js or Python, cloud platform experience, RESTful APIs, microservices, SQL, automated testing, and agile development.
Founding Software Engineer - AI & Operations (Full-Stack)
Wallingford, Connecticut, United States
OnsiteFull Time
United Concrete Products: Manufacturer of precast and prestressed concrete infrastructure products.
3+ YOE3+ years engineering experience with ownership of a production system; strong full‑stack fundamentals, SQL, LLM API production integrations, OCR/document extraction, and self-directed problem solving.
OpenAI, Anthropic, OCR, MaintainX, Claude Code, Copilot, SQL
California or Colorado or Connecticut or Florida or Georgia or Illinois or Kansas or Maine or Massachusetts or New Jersey or North Carolina or New York or Oregon or Tennessee or Texas or Virginia or Washington or Austin or Tampa
$150k-$200k/yrHybridFull Time
NinjaOne: Unified IT platform for automated endpoint management and security.
10+ YOEBachelor or equivalent,10+ years Java development experience,expertise in Kotlin,2+ years React,experience with scalable systems,API and relational DB knowledge,strong communication and design skills.
Interactive BrokersNASDAQ: IBKR: Automated global electronic brokerage and trading services provider.
Experienced full-stack Java developer with Vert.x, Vue.js, Oracle SQL and RESTful API experience; familiarity with front-end technologies, CI/CD, and financial services systems.
Gurugram or United States or California or Colorado or Connecticut or Maryland or Nevada or New Jersey or New York or Ohio or Rhode Island or Washington
RemoteFull Time
AlkamiNASDAQ: ALKT: Cloud-based digital banking solutions for banks and credit unions.
5+ YOE5+ years software development experience (or 3+ with advanced degree); strong Java or C# skills; full-stack experience with React/Angular, HTML/CSS, cloud-native architectures, AWS/Kubernetes, SQL/NoSQL, REST APIs, monitoring/OpenTelemetry; on-call and mentoring experience.
Java, C#, JavaScript, React, Angular, HTML, CSS, SQL, NoSQL, Amazon Web Services (AWS), Kubernetes, OpenTelemetry, Flutter, REST API
Alabama or Alaska or Arkansas or Arizona or California or Colorado or Connecticut or Delaware or Florida or Georgia or Hawaii or Iowa or Idaho or Illinois or Indiana or Kansas or Kentucky or Louisiana or Maine or Michigan or Minnesota or Missouri or Mississippi or Montana or North Carolina or North Dakota or Nebraska or New Hampshire or New Jersey or New Mexico or Nevada or Ohio or Oklahoma or Pennsylvania or Rhode Island or South Carolina or South Dakota or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin or West Virginia or Wyoming
$150k-$170k/yrRemoteFull Time
Patch My PC: Automates third-party application patching for Microsoft IT management tools
8+ YOE8+ years professional software development; strong full-stack experience with .NET, React, and TypeScript; RESTful APIs, MongoDB/NoSQL, Docker, Azure DevOps, CI CD; production ownership and mentoring experience.
.NET, React, TypeScript, RESTful APIs, MongoDB, Docker, Azure DevOps, Microsoft Graph, Microsoft Intune, Microsoft ConfigMgr, WSUS, SignalR, WebSockets, Redux, Kubernetes, Redis, CI CD
United States or Spain or Arizona or Arkansas or California or Connecticut or Florida or Georgia or Idaho or Illinois or Maine or Massachusetts or Michigan or Missouri or Nevada or New Hampshire or New Jersey or New York or North Carolina or Ohio or Oregon or Pennsylvania or Rhode Island or South Carolina or Tennessee or Texas or Utah or Vermont or Virginia or Washington or Wisconsin
RemoteFull Time
Breezeway: Software platform for hospitality property operations and service management.
7+ YOE7+ years full-stack experience with React and Python/Flask, designing REST/GraphQL APIs, SQLAlchemy ORM, Celery, SaaS experience, and AI/LLM integrations.
New York City or California or Oregon or Colorado or Texas or Wisconsin or Minnesota or Louisiana or Florida or Virginia or North Carolina or South Carolina or New Jersey or New York or Connecticut or United Kingdom
$130k-$150k/yrRemoteFull Time
TixTrack: Provides cloud-based ticketing and venue management software for venues.
7+ YOE7+ years full-stack SaaS development with .NET Core back-end and modern frontend frameworks (React/Angular/Vue); strong SQL, API, SRE/DevOps appreciation, Agile experience, bachelor’s degree or equivalent.
.NET Core, React, Angular, Vue, HTML, CSS, JavaScript, SQL, Stripe, Microsoft Office, Google Suite, Slack, JIRA
Texas or Idaho or Arkansas or Vermont or Georgia or Minnesota or New Mexico or Montana or Iowa or Michigan or California or Oregon or Maine or Wisconsin or Washington or New York or North Dakota or District of Columbia or Kansas or Indiana or New Jersey or Nebraska or Connecticut or Nevada or Rhode Island or Louisiana or Kentucky or Mississippi or Ohio or Oklahoma or West Virginia or Massachusetts or Maryland or South Carolina or Alabama or Missouri or Utah or Arizona or Virginia or South Dakota or Illinois or North Carolina or Florida or Colorado or Pennsylvania or New Hampshire or Wyoming or Delaware
$83k-$222k/yrRemoteFull Time
CVS HealthNYSE: CVS: Provides retail pharmacy, health insurance, and pharmacy benefit management services.
3+ YOE3+ years full-stack engineering experience with Go; familiarity with TypeScript/Python/C#; front-end (HTML/CSS/JS); distributed systems, RESTful APIs, databases, cloud (Azure/AWS/GCP); effective communicator.
Lafayette or Bloomfield or Raleigh or Dallas or Austin
$81k-$141k/yrHybridFull Time
CGINYSE: GIB: Provides information technology and business consulting services.
8+ YOE8+ years Java full‑stack experience with Azure, microservices, REST APIs, Spring Boot, Docker/AKS, CI/CD, and RDBMS/NoSQL; bachelor’s degree preferred.
Azure, RESTful (Rest-APIs), Java, Java 8, Spring Boot, Camel, Fuse, Docker, Azure Kubernetes Service (AKS), RDBMS, NoSQL, git, CI/CD, Openshift, Spring, Spring Batch
Needham or California or Connecticut or Florida or Georgia or Illinois or Massachusetts or Maryland or Maine or Michigan or New Hampshire or New Jersey or New York or North Carolina or Pennsylvania or Rhode Island or South Carolina or Tennessee or Texas or Utah or Washington or Virginia
$150k-$172k/yrRemoteFull Time
Advisor360°: Provides an integrated SaaS platform for wealth management firms.