PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
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
1mo
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Senior Backend Engineer – AI Platform
Boston or San Francisco or Seattle or Dallas or Salt Lake City or Portland or United States
$122k-$146k/yr RemoteFull Time
5+ YOEBachelor's in CS/Software Engineering, 5–8 years software engineering experience; expertise in backend Java/C# (SpringBoot), REST/gRPC, SQL; experience building scalable distributed systems and AI/LLM-driven services.
Java, C#, SpringBoot, REST, gRPC, ODATA, SQL, OpenAI APIs, LangChain, Python, Kafka, Docker, Kubernetes, Model Context Protocol (MCP), Pinecone, Weaviate, OpenSearch, Milvus
2mo
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Senior Backend Engineer
Cambridge, Massachusetts, United States
$150k-$200k/yr OnsiteFull Time
Backend engineer with Python/Node.js, cloud (GCP/AWS), databases, APIs (REST/gRPC/GraphQL), CI/CD, and microservices.
Python, Terraform, Google Cloud Platform, Node.js, Express.js, REST, gRPC, GraphQL, SQL, NoSQL, PostgreSQL, MongoDB, Firebase, CircleCI, GitLab, Git, Perforce, Microservices, TypeScript, Java, C++, Go
3d
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Senior Lead Software Engineer, Back-End
McLean or New York City or Boston
$209k-$286k/yr OnsiteFull Time
6+ YOEBachelor's degree,6+ years software engineering experience,1+ year cloud experience; experience with Java/Scala/Python/Go/Node, AWS/GCP/Azure, Kubernetes, ML platform engineering preferred.
Java, Python, SQL, Node, Go, Scala, Docker, Kubernetes, AWS, Microsoft Azure, Google Cloud
1mo
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Senior Lead Software Engineer, Back End (Finance Tech)
Richmond or McLean or Cambridge
$209k-$239k/yr OnsiteFull Time
6+ YOEBachelor's degree, 6+ years professional software engineering experience, 1+ year cloud experience (AWS/Azure/GCP); proficiency in Java/Python/SQL/Node/Go/Scala, containerization (Docker/Kubernetes); leadership and Agile experience preferred.
Java, Python, SQL, Node, Node.js, Go, Scala, Docker, Kubernetes, AWS, Microsoft Azure, Google Cloud, Open Source RDBMS, NoSQL
2mo
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Senior Lead Software Engineer, Back-End Distributed Systems (AWS, Go, Kubernetes, MCP, Lua, Python)
Cambridge or McLean or New York or Plano or San Jose
OnsiteFull Time
6+ YOE6+ yrs software engineering; 1+ yr cloud (AWS); BS; backend distributed systems exp; Go, Lua, Python, AWS, Kubernetes.
AWS, Kubernetes, Go, Lua, Python, JavaScript, Java, TypeScript, SQL, HTML/CSS, Docker, MongoDB, MySQL, PostgreSQL
3mo
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Senior Software Engineer (Backend, Business Systems)
Boston, Massachusetts, United States
$150k-$215k/yr OnsiteFull Time
5+ YOEBS in CS or related field; 5+ years backend experience; proficiency in at least one modern backend language; API design; databases and cloud; collaboration and mentoring; AI tooling experience.
Java, Python, Go, AWS, GCP, Azure, APIs, Relational Databases, Data Modeling, CI/CD, AI tools
2w
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Senior Lead Software Engineer, Full Stack/Back End (Intelligent Foundations and Experiences)
McLean or Cambridge or Richmond
$230k-$262k/yr OnsiteFull Time
6+ YOE1+ MgmtBachelor's degree and 6+ years software engineering experience; 1+ year cloud experience; 1+ year people management preferred; experience with JavaScript/Java/TypeScript/SQL/Python/Go; strong communication and critical thinking.
JavaScript, Java, HTML/CSS, TypeScript, SQL, Python, Go, Open Source RDBMS, NoSQL, Docker, Kubernetes, AWS, Microsoft Azure, Google Cloud, GCP
1mo
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Senior Full Stack Engineer, Sponsored Ads
Boston, Massachusetts, United States
$141k-$225k/yr OnsiteFull Time
5+ YOE5+ years software engineering experience with TypeScript, Java, Python, frontend (React/Next.js) and backend services; experience with CI/CD (Jenkins), AWS, Terraform, SQL/NoSQL, system design, observability, and collaborating with data science/AI teams.
TypeScript, Python, Java, Spring Boot, Next.js, React, Jenkins, AWS, Terraform, SQL, NoSQL, CI/CD