33 api java developer jobs at 16 companies in Portsmouth, NH
3mo
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Java Backend Engineer
Merrimack, New Hampshire, United States
$88k-$153k/yr OnsiteFull Time
6+ YOE6+ years backend Java experience with Spring/Spring Boot, API/microservices design, Oracle/DB2 and PL/SQL, CI/CD with Git/Jenkins/uDeploy, DevOps tooling; bachelor's degree required.
Java, Spring, Spring Boot, PL/SQL, Oracle, DB2, Git, Jenkins, uDeploy, Sonar, HP Operations Orchestration, ServiceNow, HP Service Manager, RESTful (Rest-APIs)
1mo
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Java Backend Engineer - Onsite/Hybrid
Merrimack, New Hampshire, United States
$66/hr HybridFull Time
10+ YOEBachelor's degree or equivalent in technology, 10+ years Java experience, 6+ years Spring, 5+ years cloud technologies, and experience with APIs, microservices, databases, CI/CD, testing, and SRE practices.
Java, Spring, Spring Boot, Microsoft Azure, RabbitMQ, Kafka, Service Bus, Oracle, PostgreSQL, REST API, Jenkins, JUnit, Cucumber, Selenium
4d
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Java Technical Lead (Remote in US)
Portsmouth or United States
$89k-$141k/yr RemoteFull Time
12+ YOEBachelor's degree or equivalent experience, 12+ years developing Java applications, Spring Boot, Node.js, TypeScript, AWS, REST APIs, databases, observability, and production troubleshooting experience.
Java, Spring Boot, Node.js, TypeScript, AWS, REST, JSON, OpenAPI, Git, GitHub, GitHub Actions, AWS Lambda, Amazon DynamoDB, AWS Step Functions, Amazon S3, Amazon DocumentDB, AWS Identity and Access Management, Datadog, Oracle, PostgreSQL, MySQL, Hibernate, Java Persistence API
4d
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Java Technical Lead (Remote in US)
Williston or Portsmouth or United States
$89k-$141k/yr RemoteFull Time
12+ YOEBachelor’s degree or equivalent experience; 12+ years developing Java applications; Spring Boot, Node.js, TypeScript, AWS, REST APIs, databases, observability, testing, CI/CD, and troubleshooting experience.
Java, Spring Boot, Node.js, TypeScript, JavaScript, AWS, REST, JSON, OpenAPI, Git, GitHub, GitHub Actions, AWS Lambda, DynamoDB, AWS Step Functions, Amazon S3, Amazon DocumentDB, Identity and Access Management (IAM), Datadog, Oracle, PostgreSQL, MySQL, Hibernate, Java Persistence API
3w
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Principal Software Engineer/Developer
Merrimack, New Hampshire, United States
OnsiteFull Time
3+ YOEDesign, develop, test, and maintain enterprise Java/Spring Boot applications and APIs; experience with cloud, CI/CD, observability, and mentoring; Bachelor's or Master's in related field with relevant experience.
Java, Spring Boot, Angular, Node JS, JIRA, SQL, NoSQL, Snowflake, CloudFormation, Jenkins, Shell Scripting, Datadog, Splunk, Git, uDeploy, Sonar, RESTful web services
5d
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Senior Software Engineer
Burlington, Massachusetts, United States
$149k-$224k/yr OnsiteFull Time
Backend development with Java, Golang, or Python; cloud deployment; observability and Kubernetes; CI/CD; APIs; databases; SaaS; Scrum; and a BS or MS in computer science or equivalent.
Java, Golang, Python, AWS, GCP, Azure, Kubernetes, Spinnaker, Jenkins, ArgoCD, Helm, Terraform, Maven, Gradle, SQL, NoSQL, Spring Framework, Scrum
1d
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Software Engineer, Senior
Wilmington, Massachusetts, United States
$152k-$189k/yr OnsiteFull Time
8+ YOERequires 8+ years of software development experience, strong Java, REST APIs, distributed systems, cloud applications, AWS, databases, CI/CD, testing, secure development, AI-assisted tools, and a bachelor's degree or equivalent.
Java, AWS, RxJava, CI/CD, RESTful APIs, NoSQL, AI-assisted engineering tools
3w
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Principal Software Engineer/Developer
Merrimack, New Hampshire, United States
OnsiteFull Time
3+ YOEBachelor's degree plus 5 years or master's degree plus 3 years of software engineering experience; expertise in Java, Spring Boot, Angular, cloud applications, APIs, databases, CI/CD, and DevOps tools.
Java, Spring Boot, Angular, Node.js, JIRA, SQL, NoSQL, Snowflake, CloudFormation, Jenkins, Shell Scripting, Datadog, Splunk, Git, uDeploy, Sonar
1mo
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Senior Software Engineer
Arlington or Woburn or Carlsbad or Aurora or Boston or Dayton or Melbourne
$140k-$170k/yr HybridFull Time
5+ YOEProven Java and Spring development experience, microservices and API design, containerized infrastructure (Docker/Kubernetes), experience with Kafka/NATS and GitLab, Python for AI/data integration, and ability to obtain Top Secret clearance.
Java, Spring Boot, Linux, Docker, Kubernetes, Kafka, NATS, GitLab, Python
3mo
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Staff Software Engineer (Agentic AI)
Lowell, Massachusetts, United States
$130k-$186k/yr HybridFull Time
7+ YOEBachelor's degree, 7+ years software development (2+ years building agentic/LLM systems). Experience with agentic frameworks, Python/Java/C#/JavaScript/TypeScript, cloud platforms, GitHub, APIs, and agent architecture.
Google ADK, Anthropic Claude SDK, LangChain, LangGraph, AutoGen, Crew AI, Vertex AI, Azure OpenAI, Bedrock, GitHub, Model Context Protocol (MCP), REST APIs, function calling, Python, Java, C#, JavaScript, TypeScript
4d
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Java Technical Lead (Remote in US)
Portsmouth or United States
$89k-$141k/yr RemoteFull Time
12+ YOEBachelor's degree or equivalent practical experience; 12+ years developing Java applications; Spring Boot, Node.js, TypeScript, AWS, APIs, databases, observability, and CI/CD experience required.
Java, Java 8, Java 11, Java 17, Spring, Spring Boot, Node.js, TypeScript, JavaScript, AWS, AWS Lambda, DynamoDB, AWS Step Functions, Amazon S3, Amazon DocumentDB, AWS Identity and Access Management, REST, JSON, OpenAPI, Git, GitHub, GitHub Actions, Oracle, PostgreSQL, MySQL, Hibernate, Java Persistence API (JPA), Datadog
2mo
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AI Developer, AVP
Burlington, Massachusetts, United States
$90k-$158k/yr OnsiteFull Time
2+ YOEHands-on engineer with 2+ years building production AI systems: LLMs, RAG, agent frameworks, Python (plus Java/C#/TypeScript), cloud platforms (Azure preferred), Kafka/Event Hub, Redis/Hazelcast, and CI/CD practices.
LLMs, RAG, MCP, Python, Java, C#, TypeScript, Kafka, Event Hub, Redis, Hazelcast, Snowflake, Microsoft Azure, AWS, GCP, API Management, APIs, CI/CD, Agile, Scrum
1d
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Backend Software Engineer
Portsmouth or Boston or Plano or Indianapolis or Columbus
HybridFull Time
3+ YOEBachelor's or master's degree in a technical discipline or equivalent experience; 3+ years of backend engineering; Java, Spring Boot, APIs, microservices, cloud, Agile, CI/CD, and DevOps experience.
Java, Spring Boot, REST, AWS, Azure, Google Cloud, NodeJS, J2EE, Kafka, DataDog, Splunk, GitHub Copilot, Pact, CI/CD, DevOps, Scrum, Kanban, XP
1d
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Backend Software Engineer
Portsmouth or Boston or Plano or Indianapolis or Columbus or United States or Los Angeles or Philadelphia or San Francisco
$83k-$154k/yr HybridFull Time
3+ YOEBachelor's or master's degree in a technical discipline or equivalent experience, 3+ years of backend engineering, Agile experience, and proficiency with Java, Spring Boot, APIs, microservices, cloud platforms, and DevOps practices.
REST, microservices, AWS, Azure, Google Cloud, Java, NodeJS, Spring Boot, Scrum, Kanban, XP, CI/CD, DevOps, Kafka, DataDog, Splunk, GitHub Copilot, Pact
1w
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Staff Software Engineer – Medical Devices
Wilmington, Massachusetts, United States
$135k-$202k/yr OnsiteFull Time
8+ YOEBachelor's, master's, or Ph.D. in a technical discipline and 8+ years of software engineering experience. Requires Java, Python, AWS, distributed systems, APIs, databases, CI/CD, security, and regulated healthcare software experience.
Java, Spring Boot, Python, Node.js, AWS, ECS, EKS, Lambda, DynamoDB, RDS, S3, SQS, SNS, API Gateway, Cognito, Kubernetes, RESTful APIs, CI/CD, Infrastructure as Code, HIPAA, FDA, IEC 62304, ISO 14971, HL7, FHIR, Epic, OWASP, OIDC, SAML 2.0, SOC 2, ISO 27001
3w
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Staff Software Development Engineer – Agentic Applications and Experiences
Portland or Chicago or Seattle or Dallas
$141k-$173k/yr OnsiteFull Time
7+ YOEBachelor's degree and 7+ years software engineering experience; strong backend skills with Java or C#; experience with cloud (AWS), Kafka, Elasticsearch, containerization, RESTful APIs, and scalable systems.
Java, Kafka, Elasticsearch, AWS, Docker, Kubernetes, Spring Boot, OData, SQL
4w
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Software Engineer
Lexington, Massachusetts, United States
$135k-$145k/yr OnsiteFull Time
8+ YOEActive Secret clearance required; 6–8+ years software experience depending on degree; proficiency in Java/Python/C++/C#/JavaScript, RESTful APIs, CI/CD and software-development principles.
Java, Python, C++, C#, JavaScript, RESTful APIs, Git, Maven, Gradle, Jenkins, GitLab CI, Linux, Windows, Spring, JEE, SQL, Docker, Kubernetes, OpenShift, JUnit, Mockito, Selenium, Cucumber
1mo
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Principal Software Engineer
Wilmington, Massachusetts, United States
$144k-$216k/yr OnsiteFull Time
8+ YOE3+ MgmtBachelor's degree or equivalent,8+ years quality engineering experience,3+ years technical leadership,proficiency in test automation,CI/CD,API testing,Agile.
Java, Python, C#, JavaScript, Selenium, Cypress, Playwright, Appium, RestAssured, MS Copilot, Jenkins, GitHub Actions, Azure DevOps, JMeter, Gatling, k6, Docker, Kubernetes, AWS, Azure
3w
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Senior Embedded Software Engineer, Applied Automation Controls/Embedded Software
Seattle or North Reading
$168k-$227k/yr OnsiteFull Time
5+ YOE5+ years professional software and embedded firmware experience; strong C/C++ skills; experience with real-time control, motion/trajectory planning, industrial communications, API design (protobuf/gRPC); bachelor’s in computer science or equivalent.
Java, C++, C#, protobuf, gRPC, RTOS, EtherCAT, Profinet, EtherNet/IP, CI/CD
1w
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QA Validation Engineer for AI Initiatives (Teradyne, North Reading, MA)
North Reading, Massachusetts, United States
$126k-$202k/yr OnsiteFull Time
7+ YOERequires 7+ years in QA/validation engineering, 2+ years with AI/ML or data-intensive systems, coding experience, database knowledge, and a bachelor's degree; master's preferred.
Python, Java, SQL, test automation frameworks, ML metrics, data profiling tools, Generative AI, API, ETL, ELT