1mo
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Senior Backend Engineer
Cincinnati or Boston or United States
OnsiteFull Time
Senior-level backend engineer with ownership of production microservices, experience with distributed systems, integrating partner banks/card networks, AI-assisted workflows, and strong collaboration and judgment.
C#, .NET, Python, AWS, Kubernetes (EKS), PostgreSQL, Cassandra, Redis, RabbitMQ, Kafka, React, NX, ArgoCD, GitHub Actions, PACT, xUnit, Cucumber, Jest, Playwright, Grafana, OpenTelemetry, PagerDuty
1mo
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Backend Software Engineer
Waltham or Boston or United States
$127k-$171k/yr HybridFull Time
8+ YOE8+ years backend development with Java/Kotlin or similar, B.Sc. in Computer Science, strong OOP, distributed/cloud experience (AWS preferred), relational DB/SQL skills, and strong communication.
Kotlin, Java, Python, .NET, AWS, Relational Databases, SQL, CI / CD
1mo
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Backend Software Engineer
Waltham or Boston
$127k-$171k/yr HybridFull Time
8+ YOE8+ years backend development experience with Java/Kotlin or similar; BSc in Computer Science required; strong OOP, SQL, cloud (AWS) and CI/CD experience; excellent communication skills.
Kotlin, Java, Python, .NET, AWS, SQL, CI/CD, Zoom
4d
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Backend Software Engineer (Agents Channel)
Waltham, Massachusetts, United States
$163k-$220k/yr HybridFull Time
6+ YOE6+ years backend development experience, BSc in Computer Science required, strong OOP, Java/Kotlin or similar, cloud and SQL experience, strong communication skills.
Kotlin, Java, Python, .NET, AWS, SQL, CI / CD, LLM, AI
4d
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Backend Software Engineer (Agents Channel)
Waltham, Massachusetts, United States
$163k-$220k/yr HybridFull Time
6+ YOE6+ years backend development experience (Java/Kotlin or Python/.NET), BSc in Computer Science, strong OOP, cloud and SQL experience preferred, excellent communication.
Kotlin, Java, Python, .NET, AWS, SQL, CI / CD, LLM
2w
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Backend C2 Systems Full Stack Developer
Hanscom AFB or Hampton
$113k-$257k/yr OnsiteFull Time
8+ YOE8+ years software development experience including backend/services, microservices, relational and NoSQL datastores, message/streaming platforms, containerization, frontend (React), CI/CD, and eligibility for Secret clearance.
Java, .NET, C#, Python, Go, Kafka, React, AWS, Kubernetes, Prometheus, Grafana, OpenTelemetry
2w
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Backend C2 Systems Full Stack Developer
Hanscom Air Force Base, Massachusetts, United States
$113k-$257k/yr HybridFull Time
8+ YOE8+ years software development experience with backend services and microservices; experience with server-side languages, data stores, messaging, containerization, CI/CD, and secure service design; ability to obtain Secret clearance.
Java, .NET, C#, Python, Go, Kafka, React, CI/CD, AWS, Kubernetes, Prometheus, Grafana, OpenTelemetry, mTLS, OAuth2, OIDC, API gateway, service mesh
2w
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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
2d
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Sr. Optimizely Developer
Boston or Denver
HybridFull Time
5+ YOE5+ years full-stack web development with 3+ years in Optimizely; deep C#/.NET Core/MVC backend and advanced HTML5/CSS3/JS frontend skills; experience with experimentation, personalization, and CI/CD.
Optimizely CMS, Optimizely Web Experimentation, Optimizely Feature Experimentation, C#, .NET Core, MVC, HTML5, CSS3, SASS, JavaScript, ES6+, jQuery, React, Vue, Project JS, Figma, Git, Azure DevOps, GitHub Actions, GitHub Copilot, ChatGPT, Salesforce, Marketo, Adobe Commerce
2mo
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Vice President, Full-Stack Engineer
Boston, Massachusetts, United States
$83k-$199k/yr OnsiteFull Time
10+ YOE10+ years software engineering; strong full stack in C#.Net, ASP.Net, .Net Core, SQL, Angular; strong SQL (DB2/Oracle/SQL Server); experience across frontend, backend, and data; CI/CD; mentoring; AI-assisted development.
C#, .NET Framework, ASP.NET, .NET Core, SQL, Angular, HTML/CSS, DB2, Oracle, SQL Server, CI/CD
2w
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Senior Software Engineer
Boston, Massachusetts, United States
$150k/yr HybridFull Time
5+ YOE5+ years engineering experience; strong backend (.NET/C#) and full‑stack skills; experience with web application architecture, integrations, and modern front-end tools; strong communication and problem-solving.
React, C#, ASP.NET MVC, T-SQL, Jira, Smartsheet, Salesforce, HubSpot, QuickBooks Online, Sage Intacct, HTML, CSS, JavaScript, Typescript, Svelte, Solid
1w
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Senior Software Engineer Trading Systems
Boston, Massachusetts, United States
$135k-$325k/yr OnsiteFull Time
Experienced software engineer with backend and frontend skills for trading systems; strong Python or .NET, AWS, SQL, React, APIs, and production support; prior trading/front-office experience preferred.
Python, C#, React, JavaScript, TypeScript, HTML, CSS, AWS, EKS, Lambda, EC2, S3, RDS, OMS, EMS, REST APIs, microservices, Kubernetes, CI/CD, SQL, Generative AI, LLMs
2mo
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Senior Full Stack Software Developer
Milford, Massachusetts, United States
HybridFull Time
5+ YOE5+ years software engineering experience, Bachelor\u0002s preferred, strong frontend (Angular 16+) and backend (C#, Microsoft .NET Core) skills, AWS, Docker, testing frameworks, and excellent communication.
Angular 16, Jasmine, Karma, C#, Microsoft .NET Core, AWS, Docker, Containers, Microservices, Microsoft Visual Studio, GitHub, Spinnaker, YAML, Jenkins, Python, D3, Confluence, Jira