20 senior backend developer jobs at 12 companies in Concord, NH
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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)
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Java Backend Engineer (Onsite Hybrid)
Merrimack, New Hampshire, United States
$97k-$145k/yr HybridFull Time
10+ YOE10+ years Java experience, 6+ years Spring/Spring Boot, 5+ years cloud (Microsoft Azure preferred), 6+ years REST/microservices, CI/CD, database and testing tool experience.
Java, Spring, Spring Boot, Microsoft Azure, RabbitMQ, Kafka, Service Bus, Oracle, Postgres, Jenkins, JUnit, Cucumber, Selenium
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Java Backend Engineer (Onsite Hybrid)
Merrimack, New Hampshire, United States
$97k-$145k/yr HybridFull Time
10+ YOE10+ years Java full‑stack experience, 6+ years with Spring/Spring Boot, 5+ years cloud (Azure preferred), 6+ years REST/microservices, bachelor’s in a tech field, strong communication and testing skills.
Java, Spring, Spring Boot, Microsoft Azure, RabbitMQ, Kafka, Service Bus, Oracle, Postgres, Jenkins, jUnit, Cucumber, Selenium
1w
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Senior Software Engineer - Backend Python
Nashua, New Hampshire, United States
$97k-$165k/yr OnsiteFull Time
6+ YOEBachelor's in CS or related, 6+ years backend Python experience, mastery of Python 3.x and AsyncIO, gRPC/Protobuf, Docker/Kubernetes, PostgreSQL, and ability to obtain U.S. Secret clearance.
Python, AsyncIO, gRPC, Protocol Buffers (Protobuf), FastAPI, Flask, Django, PostgreSQL, SQLAlchemy, Docker, Kubernetes, Kafka, RabbitMQ, Redis, C#, OAuth2, JWT
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Lead Backend Engineer (500796)
Westlake or Merrimack or Irving or Dallas
$86k-$127k/yr OnsiteFull Time
10+ YOEBachelor's in CS/IT/Information Systems, 10+ years Java/J2EE development, Spring/Spring Boot, API design, cloud (Docker, Kubernetes, AWS, Azure), DB2/Oracle/SQL, EM/CI tools, and leadership/mentoring experience.
Java, J2EE, Spring, Spring Boot, Docker, Kubernetes, AWS, Azure, GitHub, GIT, Jenkins, uDeploy, Stash, DB2, Oracle, SQL, PL/SQL, JPA2, Hibernate, REST API, Sonar, HP Operations Orchestration, HP Service Manager, ServiceNow
2mo
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Senior Engineer, Software Infrastructure
Wilmington, Massachusetts, United States
$110k-$152k/yr OnsiteFull Time
Experience in web frontend/backEnd, React, TypeScript, Node.js REST APIs, Backstage, Git/GitHub, Docker, cloud (AWS/Azure/GCP), testing (Jest/Playwright/Cypress), CI/CD, SBOMs, Agile software development.
React, TypeScript, JavaScript, Node.js, REST APIs, Backstage, Git, GitHub, Docker, AWS, Azure, GCP, Jest, Playwright, Cypress, CI/CD, SBOMs
3w
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Senior Staff Software Engineer
Austin or Nashua or Minneapolis or Austin
OnsiteFull Time
10+ YOEBachelor's degree or equivalent; 10+ years software development and 7+ years backend experience building distributed systems. Requires SQL, backend programming, cloud-native architecture, and query engine or DSL expertise.
NetScript, SQL, Java, Snowflake, BigQuery, Redshift, Databricks
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Senior Staff Software Engineer
Austin or Nashua or Minneapolis
OnsiteFull Time
10+ YOEBachelor's or equivalent,10+ years software development,7+ years backend,distributed systems and SQL expertise,Java preferred,cloud-native and query engine/DSL experience.
NetScript, Java, Snowflake, BigQuery, Redshift, Databricks, SQL
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Senior Software Engineer - Cloud Services
Lebanon, New Hampshire, United States
$140k-$160k/yr OnsiteFull Time
Simbex: Develops medical devices and wearable sports technology solutions.
6+ YOE6+ years backend/cloud experience; strong Node.js/TypeScript and Python; AWS Lambda/API Gateway/RDS/S3/SQS/SNS; PostgreSQL; REST API design; CI/CD; bachelor's in CS or equivalent experience.
Node.js, TypeScript, Python, AWS Lambda, API Gateway, RDS, S3, SQS, SNS, PostgreSQL, GitHub Actions, Jenkins, MQTT, AMQP, AWS IoT Core, Docker, ECS, Kubernetes, Terraform, AWS CDK, CloudFormation, Kafka, Kinesis, OpenTelemetry, Datadog, Grafana, CloudWatch, Pact
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Senior Software Engineer Applied AI
Concord or United States
RemoteFull Time
7+ YOE7+ years building production backend systems, strong Python skills, distributed/cloud experience (AWS), hands-on LLM/generative AI and end-to-end ML lifecycle experience, disciplined in regulated environments, US work authorization required.
Python, AWS, LLM, LinkedIn, AI coding assistants
1mo
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Machine Learning Engineer
Manchester, New Hampshire, United States
OnsiteFull Time
6+ YOEM.S. in CS/AI, 6+ years backend/distributed systems experience, strong Java (Spring Boot, Spring MVC, Hibernate) and Python skills, production ML (PyTorch), Apache Kafka/Spark/ZooKeeper, databases (Oracle, IBM Db2, MSSQL, MongoDB), cloud (AWS).
Java, Spring Boot, Spring MVC, Hibernate, Python, PyTorch, Apache Kafka, Apache Spark, ZooKeeper, REST, SOAP, Oracle, IBM Db2, MSSQL, MongoDB, AWS
1w
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Staff Software Engineer - Confluent Kafka Storage
Poughkeepsie or Lowell or Rochester or Tucson or Research Triangle Park or Armonk or Boston or Bellevue or Atlanta or San Jose or Dallas or Austin or San Francisco or Seattle or New York City
$161k-$299k/yr HybridFull Time
10+ YOE10+ years backend/infrastructure experience; BS in CS or equivalent; expertise in Java/Scala/C/C++/Go; deep knowledge of distributed storage systems, systems-level concepts, and leadership/mentoring skills.
Java, Scala, C/C++, Go, Apache Kafka, Apache Iceberg, Apache Flink, AWS, Azure, GCP, Kora
1mo
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Principal Software Engineer, Contact Center Digital Engagement Services
Durham or Merrimack or Westlake
OnsiteFull Time
10+ YOE10+ years engineering experience, 5+ years with Java and Spring Boot, experience designing backend architecture, real-time communication tech, cloud-native microservices, secure engineering, and mentoring; Master’s degree preferred or equivalent experience.
Java, Spring Boot, Asterisk, FreeSWITCH, Kamailio, WebRTC, SIP, RTP, Matrix, Rocket.Chat, IVR, WebSockets, Server-Sent Events, CI/CD, GitHub Copilot, Claude Code, OpenAI Codex
3w
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Principal Software Engineer, Contact Center Digital Engagement Services
Durham or Merrimack or Westlake
OnsiteFull Time
10+ YOERequires 10+ years software engineering, 5+ years Java and Spring Boot, complex backend architecture, real-time communications, cloud-native systems, AI tools, secure engineering, mentoring, and a master's degree or equivalent experience.
Asterisk, FreeSWITCH, Kamailio, WebRTC, SIP, RTP, Matrix, Rocket.Chat, GitHub Copilot, Claude Code, OpenAI Codex, Java, Spring Boot, WebSockets, Server-Sent Events, CI/CD, Microsoft?
2mo
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Full-Stack GUI Software Developer (Merrimack, NH, US)
Merrimack or Massachusetts or Pennsylvania or Minnesota or Texas or Arizona or Oregon or California
$101k-$150k/yr RemoteFull Time
6+ YOE6+ years experience building full-stack, cloud-native GUI applications; expertise with modern JS frameworks, GUI automation, backend services, CI/CD, and AI/ML integration in networking and data center contexts.
React, Vue.js, Angular, Playright, Cypress, Selenium, Node.js, JavaScript, Python, Go, SONiC, OpenBMC, Kubernetes, Docker, SPyTest, Claude Code, GitHub Actions, Azure DevOps, Jenkins, IXIA
2w
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Software Engineer
Westford, Massachusetts, United States
$106k-$177k/yr HybridFull Time
5+ YOE5+ years full-stack web application experience with frontend Vue 3/Pinia/Apollo/Vite and backend .NET/ASP.NET Core/C#; GraphQL, PostgresSQL/SQL, microservices, cloud platforms, Docker/Kubernetes, Git/Bitbucket; strong architecture and communication skills.
Vue 3, Pinia, Apollo, Vite, .NET Framework, ASP.NET Core, C#, GraphQL, PostgresSQL, SQL, GCP, AWS, Microsoft Azure, Docker, Kubernetes, Linux, .NET MAUI, Git, Bitbucket, GitHub Copilot, Claude
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