113 application developer jobs at 60 companies in Barrington, NH

2d
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Senior Application Developer
Westbrook, Maine, United States
$100k-$125k/yr OnsiteFull Time
IDEXX
IDEXXNASDAQ: IDXX: Diagnostic equipment and software for veterinary and water testing.
5+ YOE5+ years application development experience; strong experience with C#, ASP.NET, Vue.js, JavaScript, T-SQL, Azure DevOps; enterprise design, Agile, CI/CD, mentoring and troubleshooting skills.
C#, ASP.NET, Vue.js, JavaScript, T-SQL, Azure DevOps
1w
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Senior Application Engineer
Portsmouth, New Hampshire, United States
OnsiteFull Time
E Tech Group
E Tech Group: Provides industrial automation and control systems integration services.
5+ YOEBachelor's or equivalent experience,5+ years industrial automation experience,estimating and proposal development expertise,ERP/project costing familiarity,and strong written and verbal communication.
PLC, HMI, ERP, Project Costing Systems, parametric estimation tools
6d
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Application Tooling Engineer
Nashua, New Hampshire, United States
OnsiteFull Time
Amphenol
AmphenolNYSE: APH: Manufactures electronic and fiber optic connectors and interconnect systems.
Bachelor's in mechanical engineering, proficiency with CAD and office software, ability to develop and validate tooling, define processes, read technical drawings, and collaborate with suppliers.
Creo, SolidWorks, Microsoft Excel, Microsoft Word, Microsoft PowerPoint
1mo
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Staff Application Engineer
Burnsville or Loveland or Arlington or Seattle or United States or Charlotte or Waukesha or Merrimack or Houston or Faribault
$130k-$160k/yr HybridFull Time
Trystar
Trystar: Designs and manufactures electrical power distribution and backup equipment.
7+ YOEBachelor's degree in electrical engineering (Master's preferred); 7+ years power industry experience and 5+ years load bank design; expertise in resistive/reactive load bank design, PLC controls, and UL/NEC/IEEE standards; 20-25% travel.
PLC, PowerDyne
2w
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Application Engineer II
Beverly, Massachusetts, United States
$90k-$110k/yr OnsiteFull Time
Amphenol PCD
Amphenol PCDNYSE: APH: Manufacturer of electronic interconnect products for harsh environments.
3+ YOEBS in Mechanical Engineering or equivalent, 3+ years experience, strong technical aptitude, excellent communication, Microsoft Office proficiency, ability to travel 25–30%, and work with customers and sales teams.
Microsoft Office
6d
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Senior Application Security Engineer
Boston or Lawrence
$105k-$156k/yr HybridFull Time
New Balance: Designs and manufactures athletic footwear, apparel, and sports equipment.
5+ YOE5+ years in application/security engineering with SDLC and DevSecOps integration, security automation/SOAR, Azure/cloud security, threat modeling, and PCI DSS experience.
Python, JavaScript, .NET/C#, Azure, CI/CD, Akamai, Salesforce Commerce Cloud, Atlassian Stack, PKI, SOAR, SAST, SCA, DAST, API Security, Container Security, CNAPP/CSPM/CWPP, WAF
2w
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Associate Director, AI Application Engineer
McKinney or Tucson or Tewksbury
$157k-$299k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
12+ YOE12+ years applying AI/ML to deliver production systems, experience with LLMs, secure MLOps/DevSecOps, cloud and embedded deployment, and ability to obtain TS/SCI clearance (U.S. citizenship required).
Python, Large Language Models (LLMs)
1mo
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Application / Customer Engineer II
Laconia, New Hampshire, United States
OnsiteFull Time
Smiths Group
Smiths GroupLondon Stock Exchange: SMIN: Engineers specialized technologies for energy, security, and aerospace markets.
2+ YOEBachelor's degree plus ~2 years related experience (or equivalent). Interpreting complex customer requirements, developing design solutions, managing product configuration, and familiarity with FAA TSO/PMA processes.
2w
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Mechanical Application Development Engineer
Nashua, New Hampshire, United States
OnsiteFull Time
Amphenol
AmphenolNYSE: APH: Designs and manufactures electrical connectors and interconnect systems.
2+ YOEBS in Mechanical or Electrical Engineering required, 2+ years product development experience, experience with high-speed connectors and cable assemblies, strong communication and analytical skills.
Finite Element Analysis (FEA)
1mo
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Senior SW Application Development Engineer - Instrumentation and Controls
Beverly, Massachusetts, United States
$142k-$213k/yr OnsiteFull Time
Axcelis Technologies
Axcelis TechnologiesNASDAQ: ACLS: Designs and manufactures ion implantation equipment for semiconductor manufacturing.
8+ YOEDevelop real-time machine control software; strong C/C++; RTOS experience; instrument/controls for electro-mechanical systems; 8-10 years in semiconductor equipment software.
C/C++, RTOS, Modbus, Ethernet TCP/IP
1mo
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Senior Staff Engineer Field Application Engineering
Washington or Andover
$128k-$176k/yr OnsiteFull Time
Infineon Technologies
Infineon TechnologiesFrankfurt Stock Exchange: IFX: Designs and manufactures semiconductors for power and IoT systems.
5+ YOEBachelor's in EE/CE or related; 5+ years in field/applications engineering supporting power electronics or semiconductors; expertise in GaN/Si MOSFETs, power switching and high-frequency power design; schematic/PCB review experience; strong communication and account management skills.
MOSFETs, GaN, gate drivers, power ICs, SRAM, Flash, PCB layout, MIL-PRF-38535, MIL-STD-750, JEDEC
1w
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Composites Application Engineer, Ceramic Matrix Composites (CMC)
Rochester, New Hampshire, United States
OnsiteFull Time
Albany International
Albany InternationalNew York Stock Exchange: AIN: Manufacturer of advanced textiles and engineered composite aerospace components.
2+ YOE2+ years composite-industry experience required; CMC, hypersonic, or advanced electronics experience preferred; undergraduate degree in business or engineering required; experience in R&T environments; travel up to 40% monthly; ability to obtain security clearance.
1d
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Principal Software Engineer/Developer
Merrimack, New Hampshire, United States
OnsiteFull Time
Fidelity Investments
Fidelity Investments: Provides investment management, retirement planning, and brokerage services.
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
3w
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CQV Engineer, General Application
Blue Bell or Somerset or Cary or Burlington or Houston or Leawood or Emeryville or Irvine or Germantown or Elkton or Cherry Hill or Lexington
$67k-$112k/yr FieldFull Time
IPS Integrated Project Services
IPS Integrated Project Services: Provides technical consulting, engineering, and construction for complex facilities.
2+ YOEBS in Engineering, 2+ years relevant experience in pharmaceutical/biotech/medical device CQV or QA, ability to write/execute C/Q/V protocols and perform field commissioning activities.
3w
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Software Solutions Engineer
Andover, Massachusetts, United States
$75k-$95k/yr HybridFull Time
Aras
Aras: Develops low-code software for industrial product lifecycle management.
3+ YOEMid-level software engineer with strong problem-solving, experience with C#, JavaScript, SQL, web application development; able to collect requirements, develop, test, and customize product for customers.
C#, JavaScript, SQL, Aras Innovator
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
2w
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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
1mo
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Senior Automation Engineer
Chelmsford, Massachusetts, United States
$107k-$130k/yr HybridFull Time
ZOLL Medical
ZOLL Medical: Manufactures medical devices and software for emergency care.
Bachelor's or equivalent experience, 5+ years professional application development preferred, experience with C#, .Net (Core/Framework), SQL, test automation and load/performance testing, healthcare technology experience preferred, Agile experience, knowledge of FDA/HIPAA requirements.
C#, .Net Core, .Net Framework, SQL
1mo
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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
1w
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Staff Software Engineer-JAVA
Lowell, Massachusetts, United States
$130k-$186k/yr HybridFull Time
UKG
UKG: Provider of workforce management and human capital management software.
7+ YOE7+ years building enterprise Java web applications; strong Java, Spring Boot, Hibernate/JPA, React, SQL, cloud-native and AI integration experience; TDD and CI/CD practices.
Java, J2EE, Spring Boot, Spring Framework, Hibernate/JPA, React, JavaScript, HTML5, CSS3, REST APIs, SQL, LangGraph, OpenAI Agents SDK, CrewAI, AutoGen, OpenAI, Anthropic, Google Gemini, AWS, Microsoft Azure, Google Cloud Platform, Kubernetes, Docker, OpenShift, Terraform, CloudFormation, ARM Templates, GitHub Actions, Jenkins, Azure DevOps, GitLab CI, Datadog, Grafana, Prometheus, Splunk, OpenTelemetry, Bash, Python, PowerShell, GitHub Copilot, ChatGPT, Cursor, Claude