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
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
3mo
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Sr. Software Engineer - Backend
Lowell, Massachusetts, United States
$86k-$159k/yr HybridFull Time
7+ YOESenior backend developer with 7+ years of cloud-focused experience; proficient in Go, Python, Node.js, Java, and databases; strong background in microservices, APIs, DevOps, and security.
Go, Python, Node.js, C++, Java, AWS, Azure, Google Cloud, EC2, Lambda, S3, CloudFormation, MySQL, PostgreSQL, MongoDB, Redis, Cassandra, gRPC, REST, GraphQL, Docker, Kubernetes, CI/CD
1w
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Java Backend Engineer (Onsite Hybrid)
Merrimack, New Hampshire, United States
$97k-$145k/yr HybridFull Time
10+ YOE10+ years Java experience, 6+ years Spring/Spring Boot, 5+ years cloud (Microsoft Azure preferred), 6+ years REST/microservices, CI/CD, database and testing tool experience.
Java, Spring, Spring Boot, Microsoft Azure, RabbitMQ, Kafka, Service Bus, Oracle, Postgres, Jenkins, JUnit, Cucumber, Selenium
2w
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Lead Software Engineer / Back-End Developer
Woburn or Arlington
$180k-$220k/yr OnsiteFull Time
5+ YOEActive Top Secret clearance, degree in a relevant engineering or scientific field, 5+ years developing enterprise software, software team leadership, Linux and shell skills, mobile OS familiarity, Kubernetes and AWS experience preferred.
Kubernetes, AWS, Route 53, EC2, CUDA, Linux, shell scripting, iOS, Android
6d
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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
5d
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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
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
3w
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Software Developer II
Westbrook or Maine or New Hampshire or Massachusetts
$90k-$100k/yr HybridFull Time
2+ YOE2+ years software engineering; frontend and backend experience; NodeJS or Java; JavaScript/TypeScript and React; AWS serverless (RDS, DynamoDB, API Gateway, Lambda, S3); SQL; Datadog; GitHub and CI/CD; Agile experience.
NodeJS, Java, JavaScript/TypeScript, React, AWS, RDS, DynamoDB, API Gateway, Lambda, S3, SQL, Datadog, AWS Cloudwatch, GitHub, AWS CodePipeline
2mo
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Staff Software Engineer
Wakefield, Massachusetts, United States
HybridFull Time
Proven backend experience, Java, Spark, cloud platforms, distributed systems, mentoring.
Java, Apache Spark, Hadoop, Hive, Databricks, Kubernetes, Docker, Airflow, AWS, Azure, GCP, PostgreSQL, Scylla
1mo
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Senior Engineer, Software Infrastructure
Wilmington, Massachusetts, United States
$110k-$152k/yr OnsiteFull Time
Experience in web frontend/backEnd, React, TypeScript, Node.js REST APIs, Backstage, Git/GitHub, Docker, cloud (AWS/Azure/GCP), testing (Jest/Playwright/Cypress), CI/CD, SBOMs, Agile software development.
React, TypeScript, JavaScript, Node.js, REST APIs, Backstage, Git, GitHub, Docker, AWS, Azure, GCP, Jest, Playwright, Cypress, CI/CD, SBOMs
2mo
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Software Engineer, Generalist (C++/Python)
Boston or Billerica
$140k-$180k/yr OnsiteFull Time
3+ YOE3+ years professional software engineering; strong C++17; Python a plus; backend systems and data pipelines experience; on-site manufacturing focus.
C++ 17, Python, Backend systems, Data pipelines, Containers, AWS
3w
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Machine Learning Engineer
Manchester, New Hampshire, United States
OnsiteFull Time
6+ YOEM.S. in CS/AI, 6+ years backend/distributed systems experience, strong Java (Spring Boot, Spring MVC, Hibernate) and Python skills, production ML (PyTorch), Apache Kafka/Spark/ZooKeeper, databases (Oracle, IBM Db2, MSSQL, MongoDB), cloud (AWS).
Java, Spring Boot, Spring MVC, Hibernate, Python, PyTorch, Apache Kafka, Apache Spark, ZooKeeper, REST, SOAP, Oracle, IBM Db2, MSSQL, MongoDB, AWS
1mo
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Staff Software Engineer II - Confluent Secure Compute
Poughkeepsie or Lowell or Rochester or Tucson or Research Triangle Park or Armonk or Boston or Bellevue or Atlanta or San Jose or Dallas or Austin or San Francisco or Seattle
$161k-$299k/yr HybridFull Time
10+ YOE10+ years building scalable backend/infrastructure systems; deep Kubernetes and Go expertise; experience with multi-tenant security, observability, public cloud integrations; demonstrated technical leadership and mentorship.
Kubernetes, Go, gRPC, Protobuf, AWS, GCP, Azure, Kata Containers, Cloud Hypervisor, cgroups, seccomp
6d
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Senior Software Engineer Applied AI
Concord or United States
RemoteFull Time
7+ YOE7+ years building production backend systems, strong Python skills, distributed/cloud experience (AWS), hands-on LLM/generative AI and end-to-end ML lifecycle experience, disciplined in regulated environments, US work authorization required.
Python, AWS, LLM, LinkedIn, AI coding assistants
3mo
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Process Engineer, Senior
Lowell, Massachusetts, United States
$98k-$130k/yr OnsiteFull Time
5+ YOEBS in Engineering and 5+ years wafer fabrication/process experience; hands-on wafer backend process development (dicing, grinding, CMP, polishing, bonding), statistical analysis, DOE/SPC, problem-solving and technical reporting.
1mo
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Full-Stack GUI Software Developer (Merrimack, NH, US)
Merrimack or Massachusetts or Pennsylvania or Minnesota or Texas or Arizona or Oregon or California
$101k-$150k/yr RemoteFull Time
6+ YOE6+ years experience building full-stack, cloud-native GUI applications; expertise with modern JS frameworks, GUI automation, backend services, CI/CD, and AI/ML integration in networking and data center contexts.
React, Vue.js, Angular, Playright, Cypress, Selenium, Node.js, JavaScript, Python, Go, SONiC, OpenBMC, Kubernetes, Docker, SPyTest, Claude Code, GitHub Actions, Azure DevOps, Jenkins, IXIA
2w
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Data Engineer
Burlington, Massachusetts, United States
$145k-$180k/yr HybridFull Time
4+ YOE4+ years data/backend engineering experience; strong programming in Python, C++, or Golang; building real-time and batch data pipelines; deep PostgreSQL expertise; experience with cloud and streaming technologies.
Python, C++, Golang, PostgreSQL, Kafka, Redpanda, RabbitMQ, Pulsar, AWS, S3, Parquet, ORC, Delta Lake, Airflow, Dagster, Prefect
2mo
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Staff Software Engineer
Wakefield, Massachusetts, United States
$121k-$224k/yr OnsiteFull Time
Proven experience building production distributed systems; strong backend in Java; Spark data tooling; cloud experience (AWS/Azure/GCP); leadership in design reviews and standards.
Java, Apache Spark, Databricks, Kubernetes, Docker, Airflow, AWS, Azure, GCP, PostgreSQL, Scylla, Python
6d
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Director, Software Engineering (Individual Contributor)
Merrimack, New Hampshire, United States
OnsiteFull Time
Expertise in frontend platform architecture (Angular/TypeScript), design systems, UI component libraries, desktop interoperability, AI-augmented experiences, and backend services using Java and Spring Boot.
Angular, TypeScript, HTML, CSS, NgRx, RxJS, OpenFin, FDC3, AG Grid, Plotly.js, Highcharts, Java, Spring Boot, CI/CD, Retrieval-augmented generation (RAG)
3mo
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Senior Director, Home Software Applications
Oakland or Waukesha or Toronto or South Portland or North Billerica or Santa Monica
$239k-$323k/yr OnsiteFull Time
15+ YOE5+ Mgmt15+ years software engineering with 5+ years senior leadership; experience delivering mobile and cloud software; hands-on AI/LLM deployment; strong leadership.
Claude Code, Amazon Bedrock, Mobile (iOS/Android), Cloud, Backend services, AI/LLM tooling
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