29 api developer integration engineer jobs at 23 companies in New Haven, CT
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Middle Office Software Developer
Norwalk or Rowayton
$115k-$200k/yr OnsiteFull Time
5+ YOEBachelor's in computer science, 5+ years software development in financial services, experience with C#, Windows and web frameworks, SQL Server, messaging/SOA/APIs, Agile and unit/integration testing.
C#, Windows Forms, WPF, ASP.NET MVC, Angular, JavaScript, Web API, SQL Server, MOM, SOA, APIs, Agile, Coding agents and AI-assisted development tools
1w
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Senior Frontend Developer
Greenwich, Connecticut, United States
HybridFull Time
5+ YOE5+ years commercial SPA development experience; degree in CS or related; strong JavaScript/HTML/CSS skills; experience with Vue/React/Angular, TypeScript, webpack/Vite, API integration, and AI/agentic development tools.
Vue 3, TypeScript, VueJs, Vuex, Pinia, Vite, Cypress, webpack, React.js, Angular.js, Claude Code, JavaScript, HTML, CSS, LESS
3d
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Senior AI Engineer
Greenwich, Connecticut, United States
OnsiteFull Time
Bachelor's degree or equivalent experience; enterprise technology integration, LLMs, generative AI, Python, GCP, APIs, SDLC, Agile, and secure production AI application experience required.
Large Language Models (LLMs), ADK, LangChain, Google Cloud Platform (GCP), Python, Vertex AI, Cloud Run, BigQuery, Retrieval-Augmented Generation (RAG), HRIS, CRM, ERP, APIs, SDLC, Agile
2mo
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ERP Data Engineer (White Plains, US)
White Plains, New York, United States
$102k-$128k/yr OnsiteFull Time
2+ YOE2+ years data engineering; SAP SAC integration; data pipelines; cloud; scripting; API/microservices.
SAP SAC, SAP Datasphere, BDC, BTP, APIs, Microservices, SQL, Athena, DevOps, Cloud, Data integration, ETL/ELT, CI/CD, GenAI
3d
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Senior AI Engineer
Greenwich, Connecticut, United States
OnsiteFull Time
Bachelor's degree or equivalent experience; enterprise technology and generative AI experience; Python, LLMs, orchestration frameworks, GCP, API integration, SDLC, Agile, and secure scalable application development.
Large Language Models (LLMs), ADK, LangChain, Google Cloud Platform, Vertex AI, Cloud Run, BigQuery, Python, Retrieval-Augmented Generation (RAG)
1d
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Staff Software Development Engineer
Hartford, Connecticut, United States
$130k-$261k/yr HybridFull Time
8+ YOERequires 8+ years as a technical lead in middleware integration or large-scale federated systems, architecture experience, API integration expertise, and a bachelor's degree or equivalent experience.
Kong API Gateway, Apigee, IBM API Connect (APIC), Azure APIM, REST, Java, J2EE, Kafka
1mo
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Sr. Software Engineer (React Native)
Shelton, Connecticut, United States
$119k-$149k/yr OnsiteFull Time
6+ YOE6+ years software engineering experience; strong JavaScript, Node.js, ReactJS and React Native skills; experience with REST APIs, unit/integration testing, CI/CD, version control, databases; BS in CS or equivalent preferred.
JavaScript, Node.js, ReactJS, React Native, REST APIs, CI/CD
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Senior Software Engineer - Platform and Infrastructure
Glendale or Seattle or Bristol
$142k-$190k/yr HybridFull Time
5+ YOEBachelor's degree in computer science or related field, 5+ years technical experience, hands-on ML methods, production software development, API integration, defensive design/cybersecurity, and strong technical communication.
AWS, Kinesis, Dynamo, ElastiCache, Lambda, S3, ECS, Aurora, Bedrock, JavaScript, TypeScript, Swift, Kotlin, Terraform, CloudFormation, CloudWatch, Datadog
4d
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Software Engineer II - Enterprise AI Products
Hartford or St. Paul
$120k-$199k/yr HybridFull Time
4+ YOEBachelor's in CS/STEM or equivalent, plus 4 years software engineering; proficiency in Python; experience with cloud (AWS/Azure), Kubernetes, CI/CD, REST APIs, and enterprise AI integrations.
Python, JavaScript, TypeScript, Java, AWS, Azure, Kubernetes, RESTful APIs, Jenkins, GitHub Actions, Terraform, MongoDB, Temporal, Git
1w
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Sr. Engineer, Salesforce
Stamford, Connecticut, United States
$95k-$125k/yr RemoteFull Time
5+ YOEBachelor's in IT/CS/Engineering,5+ years Salesforce experience,experience with Data Cloud/Sales/Service/Marketing Clouds,Flow,Apex,LWC,APIs,integration and Agile experience;ability to travel;US residency required.
Flows, Apex, Lightning Web Components, Data Cloud, Sales Cloud, Service Cloud, Marketing Cloud, APIs, Agile/Scrum
4d
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Guidewire Developer, Senior Associate
Chicago or Stamford or Atlanta or Charlotte or Austin or Washington or Columbus or Dallas or Los Angeles or Milwaukee or Denver or Boston or New York or Florham Park or San Francisco or Silicon Valley or Philadelphia or Phoenix or Pittsburgh or Hartford
$77k-$202k/yr OnsiteFull Time
2+ YOEBachelor's degree, minimum 2 years experience, Guidewire platform knowledge, Object Oriented Programming, API integration experience, certifications (Guidewire,Scrum Master) preferred, up to 60% travel.
Guidewire PolicyCenter, Guidewire BillingCenter, Guidewire ClaimCenter, GOSU, PCF, Guidewire Integration Framework, Spring Boot, Rest Client API, SOAP APIs
4d
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Software Engineer II - Enterprise AI Products
Hartford or Saint Paul
$120k-$199k/yr OnsiteFull Time
4+ YOEBachelor's in CS or related STEM and 4+ years software engineering; proficiency in Python, cloud (AWS/Azure), Kubernetes, CI/CD, REST APIs, LLM/AI integrations; strong communication and problem solving.
Python, JavaScript, TypeScript, Java, AWS, Azure, Kubernetes, RESTful APIs, Jenkins, GitHub Actions, Terraform, MongoDB, Temporal, MCP, LLM, Git, RAG
2d
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Application Developer – Internal Platform
Glen Cove, New York, United States
$125k-$150k/yr HybridFull Time
4+ YOERequires 4+ years building production web applications, strong C#/.NET and SQL Server experience, MVC knowledge, JavaScript framework familiarity, API design, and third-party platform integration experience.
C#, .NET, SQL Server, MVC, React, Vue, Alpine, Angular, Shopify, Galley, ShipStation, ASP.NET Web Forms, ASP.NET MVC, Razor, Microsoft Entra ID, ERP
2mo
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Generative AI Lead Engineer
Dallas or Stamford or Chicago
$120k-$140k/yr HybridFull Time
5+ YOEStrong experience in Generative AI, LLMs, prompt engineering; hands-on with .NET, React, Python; experience with RAG architectures, API integrations; Azure cloud; ability to deploy AI-enabled applications.
.NET, React, Python, LangChain, LlamaIndex, Claude, Azure, RAG
1w
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Founding Software Engineer - AI & Operations (Full-Stack)
Wallingford, Connecticut, United States
OnsiteFull Time
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
2mo
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Drupal Full Stack Developer Lead
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/yr OnsiteFull Time
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.
Drupal 9, Drupal 10, Twig, CSS, JavaScript, HTML, Sass, PHP, MySQL, Composer, Drush, Git, NPM, Panels, Layout Manager, Paragraphs, Feeds
3w
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Business Process Analyst, UiPath Developer - Associate/ Assistant Vice President
Greenwich or New York City
$100k-$150k/yr HybridFull Time
3+ YOEBachelor's degree and 3+ years in business process analysis or RPA development with UiPath, REFramework, SQL, API integrations, Python or .NET, enterprise platform exposure, and strong communication skills.
UiPath Studio, UiPath Orchestrator, UiPath Assistant, REFramework, SAP, Salesforce, ServiceNow, SQL, Excel, API, Python, VB.NET, C#, Git, Docker, JIRA, Confluence, REST, SOAP, Postman, Microsoft Power Platform, UiPath Process Mining, Celonis, AWS
1mo
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Senior Software Engineer - Platform and Infrastructure
Glendale or Seattle or Bristol
$142k-$199k/yr HybridFull Time
5+ YOEBachelor's in computer science or related field, 5+ years technical experience, hands-on ML and production-grade software development, API integration, defensive application design, and strong technical communication.
Kinesis, Dynamo, ElastiCache, Lambda, S3, ECS, Aurora, Bedrock, JavaScript, TypeScript, Swift, Kotlin, Terraform, CloudFormation, CloudWatch, Datadog
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Cloud Developer
East Hartford, Connecticut, United States
$100k-$125k/yr HybridFull Time
3+ YOE3+ years Power Platform experience, strong SQL (SQL Server/PostgreSQL), Python and C# skills, experience with APIs/integrations, Azure/Dataverse/Microsoft Fabric familiarity, bachelor's degree preferred.
Power Apps, Python, C#, SQL Server, PostgreSQL, Power Automate, Power BI, REST/JSON, Azure, Dataverse, Microsoft Fabric, Microsoft Finance & Supply Chain Management (F&SCM)
1d
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Senior Data Engineer
Mesa or Endicott or Wallingford or China or Turkey
$100k-$130k/yr OnsiteFull Time
6+ YOEBachelor’s degree in a related field and 6+ years of data engineering experience. Requires production ETL/ELT pipelines, SQL Server, data modeling, reporting, analytics, and complex data integration expertise.
Microsoft SQL Server, T-SQL, Power BI, SQL Server Reporting Services, Microsoft SharePoint, ERP, APIs
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