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Software Engineer (Fullstack)
New York City or Boston
$185k-$225k/yr HybridFull Time
2+ YOE2+ years professional experience; proficiency with React, TypeScript, Next.js, React Native, Postgres/Supabase, HTML/CSS (Tailwind), and AWS; experience building consumer-facing products and enterprise integrations.
React, TypeScript, Next.js, React Native, Postgres, Supabase, HTML, CSS, Tailwind, AWS
2mo
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Senior Software Engineer (Fullstack, AI Platform)
Boston, Massachusetts, United States
$150k-$215k/yr OnsiteFull Time
2+ YOE2–5 years software development; web apps with Next.js/React/Tailwind; REST APIs; large language model experience; collaborative in fast-paced environment.
Next.js, React, Tailwind CSS, RESTful APIs, LLMs
1mo
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Senior Software Engineer
New York City or Asbury Park or Boston or Chicago or Baltimore
$160k-$180k/yr HybridFull Time
5+ YOE5+ years software engineering experience; lead full-stack development with TypeScript, Node.js, Python, Next.js, Tailwind CSS; experience with Microsoft Azure, Azure DevOps, GitHub, Jira, EMU/AI-enabled features, and leading/mentoring engineers.
TypeScript, Node.js, JavaScript, Next.js, Tailwind CSS, Python, Microsoft Azure, Microsoft Azure DevOps, GitHub, Jira, Figma, Microsoft Dynamics, Microsoft Business Central, Microsoft PowerApps, Microsoft Power BI
1w
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Senior Frontend Engineer - Ostro
Boston, Massachusetts, United States
$110k-$270k/yr RemoteFull Time
5+ YOE5+ years building production SaaS frontend applications with deep React and modern frontend expertise; strong communication and cross-functional collaboration.
React, Javascript, Typescript, Tailwind, Material-UI, MobX, React Query, Zustand
2mo
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Trading, Investment & Optimization - QuantAI Full Stack Manager (Hybrid)
Seattle or Chicago or Los Angeles or Atlanta or Houston or Arlington or San Francisco or Morristown or Boston or Dallas or San Diego or New York City
$87k-$253k/yr HybridFull Time
5+ YOE5+ years building and shipping full-stack apps; 2+ years hands-on depth across frontend, backend, APIs; bachelor's in CS/engineering or related field.
React, Next.js, TypeScript, Tailwind, Vite, Vercel, Python, FastAPI, Electron, Tauri, Docker, Kubernetes, CI/CD, observability tooling, model-serving infrastructure, evaluation frameworks
1mo
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AI Project Engineer
Florida or Vermont or Massachusetts or Pennsylvania or New Hampshire or Michigan or United States or North America
$130k-$140k/yr RemoteFull Time
10+ YOE~10 years software engineering experience, proven AI/LLM development, full-stack skills (Node/TypeScript, Python, Java), AWS and DevOps (Terraform, CDK, CI/CD), strong architecture, security/compliance, and ability to own projects end-to-end.
Node, TypeScript, Python, Java, Spring Boot, Express, Next, Tailwind, Radix, ShadCN, React, GraphQL, REST, SOAP, gRPC, AWS, S3, ECS, DynamoDB, Elasticache, OpenSearch, SQS, SNS, CloudFront, Bedrock, Terraform, CDK, CI/CD, containers
2mo
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Engineering Manager
Boston, Massachusetts, United States
$186k-$250k/yr HybridFull Time
3+ YOE3+ years in engineering leadership; strong communication; experience scaling teams; hands-on coding in a greenfield environment.
React, React Native, Tailwind, Bun, AWS ECS, Postgres, ESRI, Mapbox, GitHub, Slack, Notion, Figma
2mo
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Sr Principal/Principal Software Engineer, App
Cambridge or San Francisco
$204k-$348k/yr HybridFull Time
8+ YOEBachelor’s or Master’s in CS/Engineering; 8-15 years building large-scale systems; full stack web development; strong cross-functional collaboration; experience with AI tooling.
React, TypeScript, Nx, Tailwind, FastAPI, SQL, NoSQL, Python, Pydantic, AWS, Kubernetes, Terraform, CloudFormation, GitHub Actions, ORMs, SQLModel, Django, Airflow, Prefect, Temporal, Dagster, pandas, numpy, scipy, jax, pytorch
2mo
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Senior Software Engineer, Lab Software
Cambridge, Massachusetts, United States
$144k-$210k/yr OnsiteFull Time
5+ YOESenior backend-focused software engineer with 5-8+ years of experience building large-scale systems; full-stack development; Python, FastAPI, React, TS, SQL/NoSQL; cloud, AWS, Kubernetes; collaboration with scientists.
React, TypeScript, Tailwind, FastAPI, SQL, NoSQL, Python, Pydantic, AWS, Kubernetes, Terraform, CloudFormation, GitHub Actions, Airflow, Prefect, Temporal, Dagster
2mo
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Principal Software Engineer, Data
Cambridge or San Francisco
$204k-$348k/yr HybridFull Time
8+ YOE8-15 years of backend-focused engineering; full stack experience; AWS, Kubernetes; API design; data pipelines; Python; collaboration with scientists and engineers.
React, TypeScript, Nx, Tailwind, FastAPI, SQL/NoSQL, Python, Pydantic, SQLAlchemy, SQLModel, Django, Airflow, Prefect, Temporal, Dagster, pandas, numpy, scipy, jax, pytorch, AWS, Kubernetes, Terraform, CloudFormation, GitHub Actions
2mo
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Senior Software Engineer, App
Cambridge or San Francisco
$144k-$240k/yr HybridFull Time
5+ YOEBachelor’s or Master’s in CS/Engineering; 5-8+ years backend/full-stack exp; React, TypeScript, FastAPI, Python; AWS, Kubernetes; AI tooling; strong collaboration.
React, TypeScript, Nx, Tailwind, FastAPI, Python, Pydantic, SQL, NoSQL, AWS, Kubernetes, Terraform, GitHub Actions
2mo
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Senior Software Engineer, Data
Cambridge or San Francisco
$144k-$288k/yr HybridFull Time
5+ YOE5-8+ years backend experience building large-scale systems; strong AWS, Kubernetes, CI/CD; Python/FastAPI/Django; SQL/NoSQL; data pipelines; cross-functional collaboration.
AWS, Kubernetes, Terraform, CloudFormation, CI/CD, GitHub Actions, SQLAlchemy, SQLModel, FastAPI, Django, Airflow, Prefect, Temporal, Dagster, React, TypeScript, Nx, Tailwind, Python, Pydantic, pandas, numpy, scipy, jax, pytorch
1mo
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Principal AI Product Engineer
Boston, Massachusetts, United States
$152k-$283k/yr HybridFull Time
Design and ship internal-facing AI products and infrastructure; strong design+engineering skills; React/Next.js/TypeScript frontend experience; systems thinking about data; comfortable with agentic tools and AWS.
Claude Code, Codex, Cursor, React, Next.js, TypeScript, Tailwind, shadcn/ui, AWS, Cognito, Bedrock, CDK
2mo
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Software Engineer II, Lab Software
Cambridge, Massachusetts, United States
$120k-$180k/yr OnsiteFull Time
2+ YOEBackend-focused software engineer with 2-5 years in building large-scale systems; full stack experience (React, TypeScript, FastAPI, Python); AWS/Kubernetes; collaboration with scientists.
React, TypeScript, Tailwind, FastAPI, Python, SQL, NoSQL, Pydantic, AWS, Kubernetes, Terraform, CloudFormation, GitHub Actions, Dagster, Airflow, Prefect, Temporal