70 java engineering jobs at 14 companies in Keene, NH
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Software Engineering Support Specialist (3842)
Littleton, Massachusetts, United States
$85k-$105k/yr OnsiteFull Time
0+ YOEBachelor's in computing/engineering, 0-3 years software engineering or quality experience, comfortable in Linux/Windows, experience with C++, Python, Java or C#, strong documentation and test skills.
Windows, Linux, C++, Python, Java, C#, Git, Bash, PowerShell
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
1mo
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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
1mo
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Software Engineering Intern I, Summer 2027
Nashua or Hudson or Manchester or Merrimack
$42k-$58k/yr OnsiteFull Time
Undergraduate student completing freshman year prior to summer 2027; programming experience in C/C++/Java/Python; eligible for US DoD security clearance; familiarity with Windows/Linux and Microsoft Office.
C, C++, Java, Python, Microsoft Excel, Microsoft PowerPoint, Microsoft Word, Windows, Linux, Git, x86, PowerPC, Agile
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Software Engineering Support Specialist (3842)
Littleton, Massachusetts, United States
$85k-$105k/yr OnsiteFull Time
0+ YOEBachelor's in CS/CE/SE,0-3 years software or quality experience, Linux and Windows comfort, programming in C++/Python/Java/C#, strong documentation and testing skills.
Windows, Linux, C++, Python, Java, C#, Git, Bash, PowerShell
2d
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2027 PhD Research Engineering Intern/Co-op
Austin or Boxborough or Fort Collins or Longmont or Fishkill or Rochester or Secaucus
$92k-$137k/yr HybridInternship, Temporary
Current PhD student at a US university in computer science, computer engineering, electrical engineering, or related field; knowledge of listed programming, hardware, ML, or systems technologies encouraged.
C, C++, Verilog HDL, Python, P4, ML frameworks, Java, MATLAB, Go, FPGA, ASIC, RTL, GPUs, PyTorch, TensorFlow
1mo
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Director, Software Engineering (UI)
Merrimack, New Hampshire, United States
OnsiteFull Time
Bachelor’s degree in computer science, software engineering, or a related technical field; leadership experience and hands-on expertise with Angular, TypeScript, FDC3, Java, Spring Boot, REST, OpenAPI, OAuth2/JWT, CI/CD, cloud, and Kubernetes.
Angular, TypeScript, FDC3, OpenFin, Interop, Java, Spring Boot, REST, OpenAPI, OAuth2, JWT, CI/CD, Kubernetes, GitHub Copilot, Claude Code
2w
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Software Engineering Intern IV, (Summer 2027) Onsite
Nashua or Hudson or Merrimack or Manchester
$58k-$81k/yr OnsiteMultiple Commitments Available
Currently enrolled in a graduate CS, CE, or related program; complete senior undergraduate year before summer 2027; programming in C, C++, Java, or Python; communication skills; Microsoft Office experience; US citizenship and clearance eligibility.
C, C++, Java, Python, Microsoft Office Suite, Microsoft Excel, Microsoft PowerPoint, Microsoft Word, Windows, Linux, Git, Agile
3w
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Director, Full Stack Engineering
Merrimack, New Hampshire, United States
OnsiteFull Time
6+ YOEDirector-level engineer with expertise in building highly scalable distributed systems using Java, Python, Oracle, Angular, Kafka and AWS; CI/CD, testing, and messaging integrations; Bachelor’s (6 yrs exp) or Master’s (4 yrs exp).
Java, Python, Oracle, Angular, Kafka, Node.js, J2EE, React, JavaScript, HTML, Bootstrap, IBM integration, MQ, Informatica, Amazon Web Services (AWS), Git, Jenkins, uDeploy, Datadog, Newrelic, JMeter, JUnit, Jasmine, Karma, Cypress, Playwright
1mo
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Principal Software Engineer – Algorithm Team
Merrimack, New Hampshire, United States
$118k-$201k/yr OnsiteFull Time
6+ YOEBachelor's in CS/CE +6 yrs (or Master's +4 yrs); current/obtainable Secret clearance; expertise in ML/algorithm development, embedded or application software, C++/Python/Java; strong communication and software engineering practices.
C++, Python, Java, CUDA, Open CL
1mo
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Administrator, Systems Operator
Nashua, New Hampshire, United States
$26-$28/hr OnsiteFull Time
4+ YOEAssociate degree or 4 years apprenticeship or equivalent in robotics/mechatronics/electrical, electro-mechanical aptitude, familiarity with Linux/Java/XML/SQL, PLC experience, ability to lift up to 50 lbs and perform physical tasks.
Linux, Java, XML, SQL, PLC
1mo
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System Design Engineer
Dallas or Ottawa or Naperville or Westford or Canada
$108k-$154k/yr HybridFull Time
5+ YOEMaster's in Engineering/Computer Science/Physics,5+ years industry experience,carrier-class networking knowledge,WDM/IP/MPLS/GMPLS/Ethernet,proficiency with scripting and planning tools,strong analytical and problem-solving skills.
Microsoft Excel, Matlab, Python, OPNET, VPISystems, RSoft, Wandl, Cariden, SQL, Perl, C++, Java, Visual Basic
1mo
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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
1mo
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Senior Software Engineer
Merrimack or Boston
$63-$103/hr OnsiteContract
5+ YOE5+ years software engineering experience, expert in Java and Spring Boot, experience with microservices, testing, CI/CD, AWS, Docker, messaging (SNS/SQS); BS in CS preferred.
Java, Spring Boot, JUnit, Git, Docker, ECS, SNS, SQS, Rest Assured, PlayWright, SQL, AWS
2w
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Cybersecurity Research Engineer - RE/DSP
Bedford, New Hampshire, United States
$112k-$179k/yr OnsiteFull Time
5+ YOEDegree in CS/CE/EE/Applied Math/Physics or related; minimum 5 years experience with BS (3 with MS, 0 with PhD); expertise in reverse engineering and digital signal processing; proficiency in C/C++/Java/Python/Go; active Secret clearance and US citizenship.
C, C++, Java, Python, Go, Linux, MacOS, Windows, Git, Subversion, CI/CD toolchains, GHIDRA, Hex-Rays IDA, Binary Ninja, Angr, Cuckoo sandbox, OllyDBG, WinDbg, Metasploit, Cobalt Strike, CORE, EMANE, MiniNet, Docker, Docker Swarm, Kubernetes, Terraform, AWS, Azure, OpenStack
2w
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Cybersecurity Research Engineer - RE/DSP
Bedford, New Hampshire, United States
$112k-$179k/yr OnsiteFull Time
5+ YOEDegree in CS/CE/EE/math/physics,5+ years (BS) or 3+ (MS) experience; expertise in reverse engineering and DSP; proficiency in C/C++/Java/Python/Go, Linux/MacOS/Windows, networking, and modern development toolchains; active clearance or ability to obtain TS/SCI.
C, C++, Java, Python, Go, Linux, MacOS, Windows, Git, subversion, CI/CD, GHIDRA, Hex-Rays IDA, Binary Ninja, Angr, Cuckoo sandbox, OllyDBG, WinDbg, Metasploit, Cobalt Strike, CORE, EMANE, MiniNet, Docker, Docker Swarm, Kubernetes, Terraform, AWS, Azure, OpenStack
1w
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Software Engineer
Windsor or Nashville or United States
OnsiteFull Time
Proficiency in Java, Python, or C++; experience building and maintaining applications and internal systems; strong problem-solving, communication, teamwork, and debugging skills.
Java, Python, C++
3mo
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Senior Software Engineer (Classified) (Tewksbury/Woburn)
Tewksbury or Woburn
$87k-$165k/yr OnsiteFull Time
5+ YOEFive+ years in software development with C++, Java, or C#; BS in STEM; active and transferable U.S. government-issued Secret clearance.
C++, Java, C#, Linux, Windows, Jenkins, Azure, Git, Jira, MATLAB, Python, Open Systems, SAFe, DevSecOps
2mo
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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