101 software system engineer jobs at 56 companies in Cheshire, CT
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System and Software Engineer (MBSE / SysML) – Aerospace
East Hartford, Connecticut, United States
HybridMultiple Commitments Available
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
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
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
1mo
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Power System R&D Engineer
Holyoke, Massachusetts, United States
$123k-$168k/yr HybridFull Time
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
1mo
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Senior Software Engineer - Personal Insurance
Hartford or Atlanta or Cockeysville or Saint Paul
$139k-$230k/yr HybridFull Time
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
1w
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Embedded Software Engineer
Farmington, Connecticut, United States
$93k-$139k/yr OnsiteFull Time
5+ YOEBachelor's degree in engineering or related field and 5+ years of embedded software experience. Requires C/C++ proficiency, embedded systems development, debugging, testing, and strong analytical skills.
C, C++, TI C2000, ST microcontrollers, Code Composer Studio, Git, Bitbucket, Jira, in-circuit emulators, oscilloscopes, serial analyzers
2w
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Lead Software Engineer (Conference Navigator)
Irving or Fort Myers or Stamford or Spain or India
$116k-$170k/yr HybridFull Time
7+ YOEBachelor's or master's degree in computer science, software engineering, or related field; 7–10+ years' software development experience; production systems, cloud, architecture, incident management, and technical leadership expertise.
C#, .NET Core, Angular, React, TypeScript, SQL, AWS, Azure
2mo
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Principal Software Development Engineer
Hartford, Connecticut, United States
$144k-$288k/yr HybridFull Time
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
4w
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Software Integration Engineer
Groton, Connecticut, United States
$90k-$100k/yr OnsiteFull Time
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
2mo
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Sr. Software Engineer, Testing
Westport, Connecticut, United States
$350k-$500k/yr HybridFull Time
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.
2mo
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Submarine Control System (SCS) Software and Certification Engineer
Washington Navy Yard or Groton
OnsiteFull Time
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
2w
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Senior Software Engineer - D425 Hull, Mechanical & Electrical Systems
Groton, Connecticut, United States
HybridFull Time
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
1w
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Senior Software Engineer – Platform & Agentic AI Engineering
Hartford or Charlotte or Columbus or Chicago
$128k-$191k/yr HybridFull Time
6+ YOE6+ years software engineering with 2+ years GenAI/LLM multi-agent experience; hands-on with Agentic protocols (ADK,MCP), AlloyDB/Postgres, Vertex AI, Python/Typescript, Terraform, and production LangChain/LangGraph systems.
Google ADK, Anthropic MCP, LangGraph, LangChain, Python, Typescript, Terraform, GCP, AlloyDB, PostgreSQL, Postgres RDS, Vertex AI, Cloud Run, Cloud Storage, Secret Manager, LangSmith, GitHub Spec-Kit, OpenSpec, BMAD-METHOD, Claude Code, GitHub Copilot, AWS Kiro, CI/CD
1mo
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Software Engineer II
Greenwich, Connecticut, United States
HybridFull Time
Experienced full-stack Java developer with Vert.x, Vue.js, Oracle SQL and RESTful API experience; familiarity with front-end technologies, CI/CD, and financial services systems.
Java, Vert.x, Vue.js, JavaScript, HTML5, CSS3, Oracle SQL, Perl, Python, RESTful API
3w
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Software Engineer, Advanced
Holtsville, New York, United States
$123k-$184k/yr HybridFull Time
8+ YOEBachelor's in CS or related,8+ years' relevant experience (5+ with advanced degree),proficiency with C#,JavaScript,jQuery,SQL Server,strong system design and leadership skills.
C#, JavaScript, jQuery, SQL Server
1mo
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Senior Software Developer for Quantum-Centric Supercomputing
Yorktown Heights, New York, United States
$161k-$276k/yr OnsiteFull Time
Master's degree required; strong proficiency in Python and a systems language (C, C++, or Rust); experience with modern software engineering practices, HPC/resource managers, EM/quantum ecosystems, and strong communication skills.
Python, Rust, C, OpenMP, MPI, GPU, Slurm, PBS, Grid Engine, LSF, Qiskit, OpenQASM, CUDA-Q, Linux, HPC, CI/CD
1mo
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IT Senior Software Engineer (Hybrid)
Berlin or Westwood
$127k-$142k/yr HybridFull Time
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
5d
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Software Engineer II – AI Agents & Harnesses
Atlanta or Hartford
$120k-$199k/yr HybridFull Time
4+ YOEBachelor's degree in computer science or related STEM field, 4+ years of software development, Python, AI application delivery, cloud platforms, distributed systems, and CI/CD experience.
Python, TypeScript, AWS, Azure, Kubernetes, Terraform, CDK, GitHub Actions, Jenkins, AWS AgentCore, Strands Agents, LangGraph, Helm
1mo
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Product Software Engineer II
Bristol or Seattle or Glendale
$115k-$154k/yr HybridFull Time
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
1w
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Founding Software Engineer - AI & Operations (Full-Stack)
Wallingford, Connecticut, United States
OnsiteFull Time
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
1w
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Principal Embedded Software Engineer
New Haven, Connecticut, United States
$180k-$220k/yr OnsiteFull Time
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