6d
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Senior .NET developer
Boston, Massachusetts, United States
$115k-$140k/yr OnsiteFull Time
5+ YOE5+ years building .NET/C# applications, SQL database experience, REST API development, web frontend skills, version control (Subversion/Git), agile experience, strong communication and mentoring ability.
.NET, C#, MySQL, Postgres, SQL Server, HTML, CSS, JavaScript, Subversion, Git, React, Node.js, Piano ID
1w
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.NET Full Stack Engineer
Beverly, Massachusetts, United States
$103k-$173k/yr OnsiteFull Time
Strong C#/.NET, Angular, SQL, and Microsoft Azure experience; able to deliver in rapid weekly sprints; familiarity with AI-assisted coding tools (Cursor) preferred.
.NET, C#, Angular, ReactJS, TypeScript, Microsoft Azure, PostgreSQL, Microsoft SQL Server, SQL, Amazon Web Services, Cursor, Model Context Protocol (MCP)
2w
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Software Engineer - C# (SiPh Test Solutions, North Reading, MA)
North Reading, Massachusetts, United States
$100k-$160k/yr OnsiteFull Time
1+ YOEBachelor's in CS/CE/EE (master's preferred), 1+ years software development experience, strong C#/.NET skills, familiarity with GIT and Windows, excellent debugging and problem-solving skills.
C#, .NET, GIT, Windows, Visual Studio, Jira, Python
1mo
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Principal Software Developer – BloodTrack Tx (C++ expert)
Boston, Massachusetts, United States
$104k-$176k/yr OnsiteFull Time
10+ YOE10+ years software engineering experience with 5+ years in a principal/architect role; expert C++ and multi-platform experience (embedded, mobile, cloud); strong architecture, security/compliance, and mentorship skills.
C++, C, iOS, Android, .NET, TypeScript, JavaScript, C#, Java, Python, Reactjs, Nextjs, RESTful APIs, Microservices, Domain-driven design, CI/CD, Event-driven architecture, Service-oriented architecture, SQL, NOSQL, OWASP, OIDC, SAML2, SOC2, ISO27001, HIPAA, AWS ECS, AWS EKS, AWS RDS, AWS Lambda, AWS S3, AWS SQS, AWS CloudFormation, Terraform
3w
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Senior EDI Developer
Somerville, Massachusetts, United States
$94k-$137k/yr HybridFull Time
Mass General Brigham: Provides integrated medical care, research, and clinical training services.
5+ YOEDesign, develop, implement, and maintain HIPAA EDI solutions (ANSI X12, HL7, XML) with strong C#/.NET and SQL Server experience; 5+ years application development experience preferred.
C#, .NET, SQL Server Management Studio (SSMS), SSIS, T-SQL, Microsoft SQL Server, Visual Studio, BizTalk Server, QNXT, ASP.NET, XML, XSLT, HL7, ANSI X12
1mo
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Senior Software Engineer - Equipment Controls
Wilmington, Massachusetts, United States
$140k-$200k/yr OnsiteFull Time
7+ YOE7+ years developing C++ and C#/.NET software for hardware-adjacent, real-time, or industrial automation systems; BS in related field (or equivalent); experience debugging machine behavior, OO design, HMI development, industrial I/O, and using AI developer tools.
C++, C#, .NET, EtherCAT, PMAC/Delta Tau, PLC, IntervalZero RTX, TwinCAT, Beckhoff, Delta Tau, Galil, ACS, PostgreSQL, Python, RTOS, HMI, SQL, Codex, Claude, Copilot, Oscilloscope, Logic Analyzer, Multimeter
1w
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Senior Full-Stack Software Engineer
Acton or Cranberry Township
OnsiteFull Time
5+ YOEBachelor's in CS or related,5+ years building software with C#, .NET, C++; experience with network protocols, hardware interfaces, APIs, and desktop UI development.
C#, .NET, C++, TCP/IP, UDP
6d
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Software Engineer - Harvard, MA
Boston, Massachusetts, United States
$85k-$105k/yr HybridFull Time
0+ YOEEarly-career engineer (<5 years) with B.S. in CS/CE, experience in C#, C/C++, Python, relational databases, containerization (Docker/Kubernetes), web technologies, and common development tools.
SQL Server, Oracle, PostgreSQL, C#, Windows, IIS, .NET, C, C++, Linux, Unix, Angular, React, Python, Docker, Kubernetes, Git, GitHub, Bitbucket, Jenkins, Visual Studio, VS Code, HTML, CSS, JSON, XML, TCP/IP, HTTP, REST, SOAP, SQL, Jira, Confluence
3d
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Staff Software Engineer – Navigation
Boston or Warsaw
$109k-$175k/yr HybridFull Time
7+ YOEBachelor's in CS/SE/EE,7+ years software development,2+ years leading scrum as technical lead,proficiency in C#/.NET,full-stack development,cloud integrations,regulated medical device experience preferred.
C#, .NET, REST APIs, Azure, Key Vault, Functions, App Service, containers, Windows, WPF, Polarion, JAMA, AWS, CI/CD
2mo
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Principal Engineer
Pune or Boston
OnsiteFull Time
10+ YOE10+ years software engineering experience; expert in C#, .NET/.NET Core, TypeScript; hands-on AWS serverless, Kubernetes/Docker, CI/CD, distributed systems and microservices; strong architecture and leadership skills.
.NET, .NET Core, C#, ASP.NET Core, Entity Framework, TypeScript, Angular, React, AWS, Lambda, API Gateway, Step Functions, EventBridge, ECS, EKS, Fargate, RDS, Aurora, DynamoDB, NoSQL, SQS, SNS, Kafka, RabbitMQ, AWS CodePipeline, GitHub Actions, Kubernetes, Docker, SQL, Cosmos DB
4w
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Software Test Engineer
Cambridge, Massachusetts, United States
$115k-$182k/yr OnsiteFull Time
4+ YOE4+ years testing real-time distributed client-server applications; automation with API and microservices; C#/.NET development; BDD/Gherkin test automation; Bachelor's required (Master's preferred).
Linux, Microsoft Azure, C#, .NET, Gherkin, Behavioral Driven Development (BDD), API, Micro Services, SAFe Agile
2mo
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Senior Software Engineer
Mansfield, Massachusetts, United States
$132k-$165k/yr HybridFull Time
3+ YOE3-5 years of software design and development with Microsoft stack; strong C#, .NET, ASP.NET; full-stack web experience (Angular, TypeScript); knowledge of SDLC; ability to mentor and collaborate.
C#, .NET, ASP.NET, TypeScript, Angular, Python
1w
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Senior Software Engineer (Full Stack)
Pittsburgh or Boston or Montreal or Toronto or United States
HybridFull Time
Experienced full-stack developer with C#/.NET backend, React frontend, SQL Server, Python familiarity, modern architecture, CI/CD familiarity, debugging skills, and Agile experience.
React, .NET, Python, SQL Server, C#, SQL
3d
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Staff Software Engineer – Navigation
Boston or Warsaw
$109k-$175k/yr HybridFull Time
7+ YOE2+ MgmtBachelor's in CS/Engineering,7+ years software development,2+ years leading a scrum team,C#/.NET,cloud (Azure/AWS),CI/CD,secure coding,regulated-medtech experience preferred.
C#, .NET, REST, X.509, mutual TLS, Key Vault, Azure, Functions, App Service, containers, CI/CD, WPF, Polarion, JAMA, AWS, Windows
1mo
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Senior Software Engineer
Burlington, Massachusetts, United States
$140k-$165k/yr HybridFull Time
5+ YOEBachelor's in CS or related, 5+ years professional C#/.NET experience, Windows app (WinForms/WPF) and cloud (Azure/AWS) experience, multithreading and backend/API development, ability to work onsite in Burlington, MA 3+ days/week.
C#, .NET, WinForms, WPF, WinUI, .NET MAUI, Azure, AWS, CI/CD
2w
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Global IT Software Engineer Manager
Boston or Atlanta
$121k-$157k/yr OnsiteFull Time
5+ YOEBachelor's in CS or related (or equivalent experience), 5+ years software development, proficiency with C#, .NET, Node.js, JavaScript/TypeScript, React, SQL, HTML5, CSS; experience with cloud (Azure/AWS) and AI/LLM integration.
React, .NET, C#, Node.js, JavaScript, TypeScript, SQL, HTML5, CSS, Python, Claude, OpenAI, Azure OpenAI, LangChain, LangGraph, Azure, AWS, AWS Bedrock, Claude Code, GitHub Copilot, Codex
1mo
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Software Development Engineer 3
Marlborough, Massachusetts, United States
$107k-$167k/yr OnsiteFull Time
10+ YOESenior software engineer with extensive experience (preferred 10+ years) in regulated, safety-critical environments; strong C++, C#, .NET, Python skills; experience with real-time OS, CI/CD, DevOps, Git tooling, automated testing, and Agile.
C++, C#, .NET, Python, QNX, RT Linux, Jenkins, SonarQube, Git, GitHub, Bitbucket, Jira, Azure DevOps, Confluence, Bash, PowerShell, Shell, Linux, GitHub Copilot, Cursor, Claude
1mo
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Senior Applications Developer
Southborough, Massachusetts, United States
$100k-$140k/yr OnsiteFull Time
4+ YOEBS in CS/Engineering required; 4+ years full‑stack C#/.Net experience; knowledge of Oracle, T‑SQL/PL‑SQL, MongoDB, HTML/CSS/JavaScript, Angular, Node.js, Telerik; Agile experience; SDLC/OOP proficiency.
.Net, C#, MVC, .Net Core, Web Services, Windows services, Oracle, Oracle 19c, T-SQL, PL/SQL, MongoDB, HTML, CSS, JavaScript, Angular, Node.js, Telerik, Kendo, SQL Server, MySQL
1mo
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Software Engineer
Boston, Massachusetts, United States
$80k-$115k/yr OnsiteFull Time
2+ YOEBachelor's degree or equivalent experience; 2+ years with Duck Creek technologies; experience with integrations, APIs, C#/.NET; Agile tools (Jira, Azure DevOps, Confluence); strong communication and systems-thinking.
Duck Creek, C#, .NET, APIs, Jira, Azure DevOps, Confluence
3d
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Staff Software Engineer
Wilmington, Massachusetts, United States
$115k-$173k/yr OnsiteFull Time
10+ YOE10+ years software design for real-time electromechanical systems, expertise in .NET and C#, HW/SW integration, concurrency, API design, EM/IPC technologies, and mentoring experience.
.NET, C#, gRPC