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72 system software engineer jobs at 44 companies in New Britain, CT

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System and Software Engineer (MBSE / SysML) – Aerospace
East Hartford, Connecticut, United States
HybridMultiple Commitments Available
Sopra Steria
Sopra SteriaEuronext Paris: SOPR: Provides digital transformation consulting and information technology services.
3+ YOEBachelor's in engineering; experience with MATLAB/Simulink for embedded software; experience with Cameo Systems Modeler; SysML; DO-178C; aerospace domain.
MATLAB, Simulink, Cameo Systems Modeler
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3mo
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Senior Engineer – Agile Software Development – Engine System Software P3 (Onsite)
East Hartford, Connecticut, United States
$87k-$165k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
5+ YOEBachelor’s in STEM; 5 years engineering experience or 3 years with advanced degree; Agile software development; safety-critical software; DO-178B knowledge.
Agile, Software development
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Principal Software Engineer
Warsaw or Fridley or Mounds View or Brooklyn Park or Fort Worth or North Haven or Jacksonville or Boston or Lafayette
$153k-$229k/yr HybridFull Time
Medtronic
MedtronicNew York Stock Exchange: MDT: Develops and manufactures medical devices and digital health solutions.
5+ YOEBachelor’s degree + 7+ years software engineering or advanced degree + 5+ years; experience designing and developing scalable systems for manufacturing operations; mentoring, requirements capture, database architecture, CI/CD, and cross-functional collaboration; ability to travel 25%.
Ignition, deviseWISE, Microsoft Azure, AWS, Docker, Kubernetes, Jenkins, Terraform, React, Angular, Node.js, ASP.NET, HTML5, CSS3, WebAPI, Microservices Architecture, CI/CD Pipelines, RESTful API Design, Java, C++, .NET, Scala, Lua, Python, SQL
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Power System R&D Engineer
Holyoke, Massachusetts, United States
$123k-$168k/yr HybridFull Time
ISO New England
ISO New England: Operates the New England power grid and wholesale markets.
5+ YOEPhD in Electrical Engineering focused on power system stability/control, strong power system modeling and EMT/IBR experience, proficiency with PSS/E, PSCAD, DSATools, PowerWorld and software development in Python, MATLAB, C#, Java; 5+ years experience.
PSS/E, PSCAD, DSATools, PowerWorld, Python, MATLAB, C#, Java
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Senior Software Engineer - Personal Insurance
Hartford or Atlanta or Cockeysville or Saint Paul
$139k-$230k/yr HybridFull Time
Travelers
TravelersNew York Stock Exchange: TRV: Provider of commercial and personal property casualty insurance.
6+ YOE6+ years software engineering experience, bachelor's in CS or related STEM, strong engineering fundamentals, experience with enterprise systems, architectural decision-making, and Agile/DevOps practices.
Apex, Lightning Web Components, Salesforce APIs, AWS, Azure, Salesforce, CI/CD, DevOps
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Staff Software Engineer - AI
Hartford or Charlotte
$128k-$191k/yr HybridFull Time
The Hartford
The HartfordNYSE: HIG: Provides business and personal insurance, group benefits, and investments.
Deep AI/ML and software engineering expertise with experience building agentic and generative AI systems; proficiency in Python/Java/C++; cloud and MLOps experience; test automation and Git skills; strong problem-solving and collaboration.
Python, Java, C++, Playwright, MLflow, Kubeflow, Docker, Git, LangGraph, Crew AI, Semantic Kernel, AWS, Azure, GCP, LLMOps, MLOps, Gemini, Claude
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2mo
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Principal Software Development Engineer
Hartford, Connecticut, United States
$144k-$288k/yr HybridFull Time
CVS Health
CVS HealthNYSE: CVS: Provides retail pharmacy, health insurance, and pharmacy benefit management services.
10+ YOE10+ years software engineering experience with .NET/COBOL/Java/Node.js/JavaScript/Angular, DevSecOps and CI/CD expertise, GCP/Azure cloud experience, and experience modernizing enterprise systems.
.NET, COBOL, Java, Node.js, JavaScript, Angular, Generative AI technologies, GCP, Azure, GitHub, Jenkins, GitHub Actions, ArgoCD, Salesforce, Mulesoft, z/OS
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Sr. Software Engineer, Testing
Westport, Connecticut, United States
$350k-$500k/yr HybridFull Time
Bridgewater Associates
Bridgewater Associates: Manages global macro hedge funds for institutional investors.
4+ YOE4+ years in rigorous engineering environments; 2+ years in SDET/testing architecture; strong diagnostic and system design skills; exposure to low-latency, agentic testing.
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3w
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Software Integration Engineer
Groton, Connecticut, United States
$90k-$100k/yr OnsiteFull Time
General Dynamics Mission Systems
General Dynamics Mission SystemsNYSE: GD: Engineers secure communication and mission-critical defense technology systems.
1+ YOEBachelor's degree in CS/IT/Systems Engineering (or Master's),1 year relevant experience,US citizenship eligible for Secret clearance,knowledge of Windows/Linux,containerization, scripting,testing, and documentation.
Windows, Linux, Kubernetes, VMware, Hyper-V, Docker, Python, Bash, PowerShell, SQL, Git, Jenkins, Ansible
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Submarine Control System (SCS) Software and Certification Engineer
Washington Navy Yard or Groton
OnsiteFull Time
Serco
SercoLondon Stock Exchange: SRP: Provides professional outsourcing services to governments worldwide.
10+ YOEUS citizen with active DoD Secret clearance, Bachelor's in engineering (or equivalent experience), 10 years experience, project/program management, FBW SCS knowledge, Matlab/Simulink and Microsoft Office proficiency, strong communication and analytical skills.
Matlab, Simulink, Microsoft Office, NNPI, CAC
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Senior Software Engineer - D425 Hull, Mechanical & Electrical Systems
Groton, Connecticut, United States
HybridFull Time
General Dynamics Electric Boat
General Dynamics Electric BoatNYSE: GD: Designs and builds nuclear-powered submarines for the U.S. Navy.
5+ YOEBSc in CS/Electrical/Computer Engineering,5+ years software engineering experience,ability to obtain DoD Secret clearance,embedded software and hardware integration,unit testing,source control experience.
C++, Java, .NET, Python, Git, SVN, Linux RTOS, LabVIEW, IBM DOORS
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Senior Software Engineer – Platform & Agentic AI Engineering
Charlotte or Hartford or Columbus or Chicago
$128k-$191k/yr HybridFull Time
The Hartford
The HartfordNYSE: HIG: Provides property and casualty insurance, group benefits, and wealth management.
6+ YOE6+ years software engineering experience with 2+ years in GenAI/multi-agent systems; hands-on with Agentic protocols, AlloyDB/Postgres, GCP, Python/Typescript, Terraform, and LangChain/LangGraph; strong security and spec-driven development skills.
Google ADK, Anthropic MCP, LangGraph, LangChain, Python, Typescript, Terraform, GCP, AlloyDB, PostgreSQL, Vertex AI, Cloud Run, Cloud Storage, LangSmith, GitHub Spec-Kit, OpenSpec, BMAD-METHOD, Claude Code, GitHub Copilot, AWS Kiro
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1mo
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IT Senior Software Engineer (Hybrid)
Berlin or Westwood
$127k-$142k/yr HybridFull Time
Eversource Energy
Eversource EnergyNYSE: ES: Delivers electricity, natural gas, and water to New England customers.
5+ YOE5+ years experience; Bachelor's degree or equivalent; design and implement systems, drive release management, mentor engineers, able to respond to emergencies and travel between MA/CT/NH; Maximo experience a plus.
Maximo
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IT Software Systems Engineer
Holyoke, Massachusetts, United States
HybridContract
MWResource
MWResource: Specialized consulting and staffing for critical energy infrastructure systems.
5+ YOEBachelors in CS/EE/related, 5+ years Microsoft-stack software development and administration experience (Windows, SQL Server, IIS, .NET, Power Platform, Active Directory/Entra ID). Microsoft certs preferred; knowledge of networking and change control required.
Microsoft Windows, Microsoft SQL Server, Microsoft Internet Information Services, Microsoft Power Platform, .NET, Microsoft Active Directory, Microsoft Entra ID
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Product Software Engineer II
Bristol or Seattle or Glendale
$115k-$154k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces movies, operates theme parks, and provides streaming services.
3+ YOEBachelor's degree or equivalent, 3+ years building backend systems/APIs in Java (Spring Boot preferred). Experience with AWS, monitoring/observability, CI/CD, Git, team on-call rotations, and scalable distributed systems.
Java, Spring Boot, AWS, ECS, Lambda, CloudFront, S3, DataDog, New Relic, CloudWatch, CI/CD, Git, TeamCity, Jenkins, Cursor, Claude Code, Angular, HAProxy, Varnish, CDN, REST APIs
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6d
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Founding Software Engineer - AI & Operations (Full-Stack)
Wallingford, Connecticut, United States
OnsiteFull Time
United Concrete Products
United Concrete Products: Manufacturer of precast and prestressed concrete infrastructure products.
3+ YOE3+ years engineering experience with ownership of a production system; strong full‑stack fundamentals, SQL, LLM API production integrations, OCR/document extraction, and self-directed problem solving.
OpenAI, Anthropic, OCR, MaintainX, Claude Code, Copilot, SQL
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2d
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Principal Embedded Software Engineer
New Haven, Connecticut, United States
$180k-$220k/yr OnsiteFull Time
Bexorg
Bexorg: Developing whole-brain perfusion platforms for neurodegenerative drug discovery.
Extensive embedded systems experience, deep C/C++ and Python skills, RTOS and real-time control expertise, firmware-to-hardware lifecycle ownership, PCB/CAD/fabrication experience, and comfort in wet-lab hardware environments.
C, C++, FreeRTOS, Zephyr, Python, Altium, KiCad, SolidWorks, Onshape, I²C, SPI, UART, RS-485/Modbus RTU, CAN/CANopen, EtherCAT, USB, Ethernet, oscilloscope, logic analyzer, SWD/JTAG, Yocto, Buildroot, PREEMPT_RT, systemd, ROS 2, LabVIEW, AWS
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3mo
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Verification Engineer, Software (Danbury, CT, US, 06810)
Danbury, Connecticut, United States
$105k-$120k/yr OnsiteFull Time
Belimo
BelimoSIX Swiss Exchange: BEAN: Develops and manufactures control devices for HVAC systems.
10+ YOE10+ years in software verification, automated test development, or embedded systems testing; Python and Robot Framework; RESTful testing; Redfish; CI/CD; HVAC/industrial controls experience.
Python, Robot Framework, Redfish, REST APIs, BACnet, Modbus, JIRA, Confluence, codebeamer, MS Office 365
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Sr. Software QA Engineer
Shelton, Connecticut, United States
$126k-$130k/yr HybridFull Time
PerkinElmer
PerkinElmer: Provides analytical instruments and laboratory services for scientific industries.
5+ YOEMaster's in computer science or related and 5+ years experience including export/compliance assessment, CAD BOM formats, SAP MRP integration testing, system validation, change control, and Jira-based test traceability.
Altium, SolidWorks, Pro-E, OrCad, MicroStation, SAP MRP, Jira
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Software Development Engineer in Test
Boston or San Francisco or Windsor
HybridFull Time
SS&C Technologies
SS&C TechnologiesNasdaq: SSNC: Provides software and technology for financial and healthcare sectors.
2+ YOEBS in CS or related, 2+ years software development experience, proficiency in Python/Java/Java Script/SQL, CI/CD and GIT experience, testing framework design, system and data security knowledge.
Python, Java, Java Script, SQL, CI/CD, GIT, BDD, Playwright, Locust, ETL, AI Tools & Technologies
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