93 api developer jobs at 50 companies in New Hampshire

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
3w
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API Engineer (Remote)
Stafford or Alaska or California or Colorado or Connecticut or District of Columbia or Hawaii or Louisiana or Massachusetts or Minnesota or Missouri or Nebraska or Nevada or New Hampshire or New Jersey or New Mexico or New York or North Dakota or Oregon or Puerto Rico or Rhode Island or Vermont or Washington or Wyoming or United States
RemoteFull Time
Oxley Enterprises
Oxley Enterprises: Provider of enterprise IT solutions and organizational management consulting.
No specific skills, education, or experience listed in the job text; posting states remote US eligibility and includes benefits information.
2mo
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Senior QA Engineer - Automation & API
Portsmouth, New Hampshire, United States
$109k-$125k/yr OnsiteFull Time
Service Credit Union
Service Credit Union: Member-owned cooperative providing personal banking and credit services.
5+ YOESenior QA Engineer focused on automation and API; strong experience with .NET, API testing, and CI/CD integration; 5+ years QA experience; bachelor’s in computer science or related field.
Postman, SoapUI/ReadyAPI, WinAppDriver, Selenium, Playwright, Cypress, Git, Bitbucket Pipelines, Jira, MuleSoft, Anypoint Platform, Salesforce, RAML, WSDL, REST, SOAP, NUnit, xUnit, MSTest, C#, Java, JavaScript, TypeScript, Python, WinAppDriver, Winium
1mo
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Senior Software Engineer
Andover or Boston or New York or Chicago or Menlo Park or Manchester or London or Tokyo
$140k/yr OnsiteFull Time
Alumni Ventures
Alumni Ventures: Provides individual investors access to diversified venture capital funds.
6+ YOE6+ years building production applications; experience with JavaScript/Node.js and/or Python, PostgreSQL/MySQL, AWS, API integrations, full-stack development, modern/AI-assisted dev tools; authorized to work in the US.
Javascript, Node.js, Python, PostgreSQL, MySQL, AWS, AI-assisted development tools, NetSuite APIs, APIs
2d
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Software Engineer
Utah or Wisconsin or Alaska or West Virginia or District of Columbia or Washington or Virginia or Vermont or Texas or Tennessee or South Dakota or South Carolina or Rhode Island or Puerto Rico or Pennsylvania or Oregon or Oklahoma or Ohio or North Dakota or North Carolina or New York or New Mexico or New Jersey or New Hampshire or Nevada or Nebraska or Montana or Mississippi or Minnesota or Michigan or Massachusetts or Maryland or Maine or Louisiana or Kansas or Iowa or Indiana or Illinois or Idaho or Georgia or Florida or Delaware or Connecticut or Colorado or California or Arkansas or Arizona or Alabama or Virgin Islands, U.S. or Missouri or Wyoming
$80k-$90k/yr RemoteFull Time
Harris Computer
Harris Computer: Provides mission-critical vertical market software and service solutions.
3+ YOEBachelor\u0002s or equivalent experience, 3+ years software development, strong Java (11/17+), Spring/Spring Boot, REST API, databases, search tech, React/Next.js, and familiarity with AI-assisted development.
Java, JVM, Spring, Spring Boot, RESTful API, PostgreSQL, MySQL, MongoDB, Elasticsearch, React, Next.js, Material UI, GitHub Copilot, Claude, Cursor, ChatGPT
1d
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Software Developer
Manchester, New Hampshire, United States
$85k-$117k/yr RemoteFull Time
Syms Strategic Group
Syms Strategic Group: Provides IT and professional services to federal government agencies.
8+ YOE8+ years software development with strong back-end focus (Java and/or NodeJS), RESTful API design, Angular front-end experience, AWS cloud, Git/GitHub, unit/integration testing, healthcare EDI knowledge, and U.S. citizenship/Public Trust eligibility.
Java, NodeJS, Angular, C#, .Net, AWS, API Gateway, Lambda, S3, CloudWatch, Git, GitHub, JUnit, Jest, JIRA, Docker, ECS, EKS, Microsoft Teams, Electronic Data Interchange X.12 (EDI), XML, JSON
3d
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Platform Engineer
Merrimack or Westlake
OnsiteFull Time
Fidelity Investments
Fidelity Investments: Provides investment management, retirement planning, and brokerage services.
Experience building developer platforms and internal tooling at enterprise scale; knowledge of IDEs, Windows/macOS deployment, cloud (AWS/Azure/Google Cloud), CI/CD, APIs, and strong communication and collaboration skills.
VS Code, GitHub Copilot, Gemini Code Assist, AWS, Azure, Google Cloud, Kubernetes, CI/CD
2d
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Senior Software Development Engineer
Illinois or Mississippi or Montana or North Carolina or Louisiana or Maryland or Maine or Minnesota or Nebraska or Missouri or North Dakota or New York or New Jersey or New Mexico or Nevada or Ohio or South Carolina or Texas or Rhode Island or South Dakota or Vermont or Tennessee or Virginia or Washington or Utah or Wisconsin or West Virginia or Oregon or Wyoming or Oklahoma or Pennsylvania or Colorado or Alabama or Arizona or California or Connecticut or District of Columbia or Florida or Iowa or Arkansas or Idaho or Kansas or Delaware or Georgia or Indiana or Kentucky or Michigan or Massachusetts or New Hampshire
$83k-$222k/yr RemoteFull Time
CVS Health
CVS HealthNYSE: CVS: Provides retail pharmacy, health insurance, and pharmacy benefit management services.
5+ YOE5+ years backend software development with Java and Spring Boot, experience in microservices, GraphQL/REST APIs, databases, cloud-native patterns, CI/CD, code reviews, and mentoring.
Java, Spring Boot, GraphQL, RESTful APIs, NoSQL, Git, GCP, Cloud Spanner, Pub/Sub, GKE, Cloud Functions, Kafka
3w
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Software Engineer III
Denver or Nashua or Augusta or Pinellas Park or Madison Heights
$125k-$145k/yr HybridFull Time
WOW!
WOW!: Provides broadband internet, cable television, and digital phone services.
3+ YOEFull-stack engineer with 3+ years building scalable web applications using Next.js and Node.js, strong AWS experience, REST/GraphQL APIs, serverless, CI/CD, AI-assisted tooling, and familiarity with web performance and accessibility standards.
Next.js, Node.js, REST API, GraphQL, Serverless, AWS, EC2, Lambda, S3, CloudFront, API Gateway, ECS, EKS, WAF, IAM, GitHub Copilot, Cursor, Claude, Contentful, Optimizely, LaunchDarkly, Google Analytics 4 (GA4), CI/CD
1mo
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Software Engineer, AI
United States or 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
$125k-$145k/yr RemoteFull Time
Patch My PC
Patch My PC: Automates third-party application patching for Microsoft IT management tools
5+ YOEBachelor's (or equivalent) and 5+ years professional software development with C#/.NET; experience with AI agent frameworks, LLMs, Transformers/OpenAI/Hugging Face, REST APIs, cloud (Azure/AWS/GCP), MongoDB, and Git.
C#, .NET, LangChain, CrewAI, AutoGPT, MetaGPT, GPT, Claude, Mistral, Transformers, OpenAI API, Hugging Face, REST APIs, Azure, AWS, GCP, MongoDB, Git, Docker, CI/CD, Azure AI Foundry, Microsoft ConfigMgr, Microsoft Intune, Microsoft WSUS
2mo
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Workday Integrations Developer
Milwaukee or Charlotte or Alabama or Alaska or Arkansas or Arizona or Delaware or Florida or Georgia or Iowa or Idaho or Illinois or Indiana or Louisiana or Kansas or Kentucky or Maine or Michigan or Missouri or Mississippi or Montana or North Carolina or North Dakota or Nebraska or New Hampshire or New Mexico or Nevada or Ohio or Oklahoma or Pennsylvania or South Carolina or South Dakota or Tennessee or Texas or Utah or Virginia or Wisconsin or West Virginia or Wyoming
$38-$56/hr RemoteFull Time
Advocate Health
Advocate Health: Provides integrated clinical care through a network of hospitals.
3+ YOEBachelor's in Computer Science or related; typically 3 years Workday integration development experience; expertise with Workday Studio, EIB/Core Connectors, Extend, BIRT, REST/SOAP APIs, XSLT/XML/JSON; Jira/ServiceNow and Microsoft Office experience; rotational on-call support.
Workday Studio, EIB (Enterprise Interface Builder), Connector, Core Connectors, Workday Integration Cloud, Extend, Workday Extend, Orchestrate, Workday BIRT, Workday REST/SOAP APIs, XSLT, XML, JSON, Java, Python, Jira, ServiceNow, Microsoft SharePoint, Microsoft Teams, Microsoft OneNote, Microsoft Excel, Microsoft Word, Microsoft Outlook
3d
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Integrations Developer
Durham or Keene or Plymouth or Concord
$70k-$125k/yr OnsiteFull Time
University System of New Hampshire
University System of New Hampshire: Providing public higher education and research through New Hampshire colleges.
3+ YOE3–5 years experience in application integration or middleware, Bachelor's degree required, experience with APIs, SQL Server, ETL, and enterprise integrations; strong communication and SDLC knowledge.
GIT, JavaScript, Java, SQL, SOAP, REST, WSQL, C/C++, Workday Studio, Workday Orchestrate, Extend, Workday Reports, EIB, XML, XSL, JSON, PowerFAIDS, TDClient, ISIR, COD
3w
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Senior Data Integration Software Engineer
Boston or Portsmouth or Plano or Indianapolis or Columbus or United States
HybridFull Time
Liberty Mutual
Liberty Mutual: Provider of global property and casualty insurance products.
5+ YOEDesign and develop scalable data integration solutions; 5+ years data integration experience; 3–5 years with AWS (Lambda, S3, Glue, Redshift); strong SQL, Python, ETL, APIs, CI/CD; understanding of SAP finance concepts; must be authorized to work in the US without sponsorship.
AWS Lambda, Amazon S3, AWS Glue, Amazon Redshift, SQL, Python, APIs, CI/CD, SAP S/4HANA, SAP FIORI
1mo
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Senior Java Developer (Irving, TX, US)
Irving or Westlake or Merrimack
$86k-$127k/yr OnsiteFull Time
Capgemini
CapgeminiEuronext Paris: CAP: Provides global IT consulting and digital transformation services.
10+ YOE10+ years Java/J2EE experience with Spring/Spring Boot, API design, microservices, cloud (Docker, Kubernetes, AWS/Azure), CI/CD tools (GitHub, Jenkins, uDeploy), relational DB (DB2/Oracle), JPA/Hibernate, strong communication and leadership skills.
Java, J2EE, Spring, Spring Boot, Docker, Kubernetes, AWS, Azure, GitHub, GIT, Jenkins, uDeploy, Stash, JPA2, Hibernate, DB2, Oracle, PL/SQL, SQL, Sonar, HP Operations Orchestration, HP Service Manager, ServiceNow, REST API
1w
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Senior Software Engineer- Cable Backplane Systems
Valley Green or Nashua or Raleigh or Austin
OnsiteFull Time
Amphenol
AmphenolNYSE: APH: Manufactures electronic and fiber optic connectors and interconnect systems.
8+ YOEBS in CS/CE required (MS preferred); 8+ years software engineering experience with large-scale data platforms, databases, pipelines, APIs, analytics/AI/ML workflows, technical leadership, and mentoring.
MES, APIs, CI/CD, AI/ML
1w
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Senior Software Engineer- Cable Backplane Systems
Yocumtown or Nashua or Raleigh or Austin
OnsiteFull Time
Amphenol
AmphenolNYSE: APH: Designs and manufactures electrical connectors and interconnect systems.
8+ YOE8+ years software engineering experience, BS in CS/CE (MS preferred), experience designing large data platforms, APIs, databases, pipelines, EM/ML workflows, and technical leadership/mentoring skills.
MES, APIs, CI/CD, AI/ML
3mo
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Senior Microsoft Dynamics 365 CRM Developer
Salem, New Hampshire, United States
OnsiteFull Time
Tokio Marine HCC
Tokio Marine HCCTokyo Stock Exchange: 8766: Underwrites specialty insurance and provides global travel assistance services.
5+ YOE5+ years in Dynamics 365 CRM, Azure, and Power Platform; strong web development skills (C#, ASP.NET, JavaScript, HTML, CSS); API development; SQL Server; Agile/Scrum experience.
C#, ASP.NET, JavaScript, HTML, CSS, SQL Server, Azure, Power Apps, Power Automate, Git, Docker, Jenkins
1mo
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Junior Salesforce AI Engineer
Alaska or Alabama or Arkansas or Arizona or California or Colorado or Connecticut or Florida or Georgia or Idaho or Illinois or Indiana or Kansas or Kentucky or Louisiana or Massachusetts or Maryland or Michigan or Minnesota or Missouri or Mississippi or North Carolina or New Hampshire or New Jersey or Nevada or New York or Ohio or Oklahoma or Oregon or Pennsylvania or Rhode Island or South Carolina or South Dakota or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin or Wyoming
$60k-$70k/yr RemoteFull Time
iFIT
iFIT: Creates interactive fitness software and connected exercise equipment.
1+ YOE1–2 years Salesforce development/admin experience with Einstein and CPQ; Bachelor's degree or equivalent; proficiency in Apex, SOQL, LWC, Salesforce Flow, Salesforce APIs; Salesforce Administrator certification; authorized to work in the U.S.
Salesforce, Einstein, Salesforce CPQ, Apex, SOQL, Salesforce Flow, Lightning Web Components (LWC), Salesforce APIs, Gearset, Einstein Copilot, Prompt Builder, Salesforce Data Cloud
2w
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Senior Software Engineer
Connecticut or West Virginia or South Carolina or Pennsylvania or New Hampshire or Hawaii or California or Michigan or Kentucky or Arizona or New Mexico or Nevada or Florida or Alaska or Washington or Oregon or Texas or Alabama or Mississippi or Tennessee or Illinois or Wisconsin or Louisiana or Arkansas or Missouri or Iowa or Minnesota or Oklahoma or Kansas or Nebraska or South Dakota or North Dakota or Colorado or Wyoming or Idaho or Montana or Utah or Vermont or North Carolina or Massachusetts or Georgia or Rhode Island or New York or Maryland or Delaware or Virginia or Ohio or New Jersey or Maine
$110k-$140k/yr RemoteFull Time
Worksoft: Automation platform for enterprise business process testing and discovery.
10+ YOE10+ years web development experience (C#, .NET, ASP.NET Core) and production AI/ML experience (LLMs, PyTorch/TensorFlow, LangChain, etc.); Bachelor’s in CS/Engineering or 15+ years experience; strong problem solving and customer-facing troubleshooting skills.
OpenAI, Azure OpenAI, Anthropic Claude, Gemini, PyTorch, TensorFlow, scikit-learn, ML.Net, LangChain, Semantic Kernel, RAG, vector databases, LLMs, ASP.Net Core, Web APIs, REST, JWT, OAuth, Azure AD/Entra ID, Blazor, Angular, MS Sql Server, EF Core, WinForms, WPF, .Net MAUI, Service Bus, Kafka, MSBuild, Git
3w
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Software Developer II
Westbrook or Maine or New Hampshire or Massachusetts
$90k-$100k/yr HybridFull Time
IDEXX
IDEXXNASDAQ: IDXX: Diagnostic equipment and software for veterinary and water testing.
2+ YOE2+ years software engineering; frontend and backend experience; NodeJS or Java; JavaScript/TypeScript and React; AWS serverless (RDS, DynamoDB, API Gateway, Lambda, S3); SQL; Datadog; GitHub and CI/CD; Agile experience.
NodeJS, Java, JavaScript/TypeScript, React, AWS, RDS, DynamoDB, API Gateway, Lambda, S3, SQL, Datadog, AWS Cloudwatch, GitHub, AWS CodePipeline
1mo
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Senior Software Engineer Test
California or New Jersey or New York or Washington or Hawaii or Alaska or Maryland or Connecticut or Rhode Island or Massachusetts or Nevada or Oregon or Arizona or Colorado or Wyoming or Texas or North Dakota or Minnesota or Missouri or Illinois or Wisconsin or Florida or Georgia or Michigan or Ohio or Virginia or Pennsylvania or Delaware or Vermont or New Hampshire or Maine or Utah or Idaho or Montana or New Mexico or South Dakota or Nebraska or Kansas or Oklahoma or Iowa or Arkansas or Louisiana or Mississippi or Alabama or Tennessee or Kentucky or Indiana or South Carolina or North Carolina or West Virginia or United States
$94k-$179k/yr RemoteFull Time
Mercury Insurance
Mercury InsuranceNYSE: MCY: Provider of personal and commercial insurance coverage.
5+ YOEBachelor's in CS or related (or equivalent experience), 5+ years industry experience, 3+ years Java/Python and automation/framework development, CI/CD, containerization, cloud, performance and API testing experience.
Jenkins, GitHub, JMeter, LoadRunner, Selenium, TestNG, JUnit, Appium, Docker, Kubernetes, AWS, Google Cloud, Azure, Postman, SoapUI, Curl, Insomnia, Java, Python, JavaScript