51 back end developer jobs at 28 companies in Sagamore, MA
2w
Save
Mark Applied
Hide
Senior Backend Engineer
Boston, Massachusetts, United States
$149k-$201k/yr HybridFull Time
6+ YOE6+ years with JavaScript/TypeScript and Node.js, 2+ years with React, strong Postgres knowledge, geospatial familiarity (PostGIS/GeoJSON), cloud-native and microservices experience, degree in CS/Civil or related.
JavaScript, TypeScript, Node.js, React, Postgres, PostGIS, GeoJSON
1mo
Save
Mark Applied
Hide
Senior Backend Engineer - Java
United States or Tampa or Boston or Atlanta or New York City or Columbus or Chicago or Philadelphia or Raleigh or Charlotte or Minneapolis or Dallas or Washington D.C. or Austin or Miami or Newark
$152k-$194k/yr RemoteFull Time
8+ YOE8+ years experience with Java/Spring Boot, JPA/Hibernate, relational databases; experience designing event-driven microservices, strong testing practices, AI-assisted development familiarity, BA/BS or equivalent.
Java 17, Java 21, Spring Boot 3.x, JPA/Hibernate 6, Postgres, Kafka, DynamoDB, Redis, OpenSearch, AWS, Docker, Kubernetes, Datadog, ArgoCD, TeamCity, Claude Code, Cursor, Codex, Model Context Protocol (MCP), GitHub, SonarQube
1w
Save
Mark Applied
Hide
Senior Backend Developer (Node JS)
Plano or Boston
HybridFull Time
8+ YOE8+ years backend development experience with Node.js/TypeScript, GraphQL, AWS, SQL/NoSQL databases, CI/CD, containerization, and strong communication skills.
Node.js, GraphQL, TypeScript, JavaScript, NestJS, ExpressJS, AWS Lambda, AWS AppSync, AWS CDK, PostgreSQL, MySQL, Amazon RDS, DynamoDB, MongoDB, Redis, Docker, Kubernetes, GitHub Actions, GitLab CI, Jenkins, CloudWatch, ELK, Prometheus, Grafana, OpenTelemetry, React, Java/J2EE, Spring Boot
1mo
Save
Mark Applied
Hide
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
2mo
Save
Mark Applied
Hide
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
1w
Save
Mark Applied
Hide
Senior Backend Developer (Node JS)
Plano or Boston
HybridFull Time
8+ YOE8+ years backend development experience with Node.js, TypeScript, GraphQL, AWS; experience with NestJS/Express, microservices, SQL/NoSQL databases, CI/CD, observability, and Agile delivery.
Node.js, TypeScript, GraphQL, JavaScript, NestJS, ExpressJS, AWS Lambda, AWS AppSync, AWS CDK, PostgreSQL, MySQL, Amazon RDS, DynamoDB, MongoDB, Redis, Docker, Kubernetes, GitHub Actions, GitLab CI, Jenkins, CloudWatch, ELK, Prometheus, Grafana, OpenTelemetry, Java, J2EE, Spring Boot, React
1mo
Save
Mark Applied
Hide
Backend Engineer, Flag Delivery
Oakland or San Francisco or New York City or Boston or Seattle or Irvine or Los Angeles or Monterey or Santa Barbara or Santa Rosa or Austin or Portland or Philadelphia or Chicago or United States
$146k-$235k/yr OnsiteFull Time
5+ YOE5+ years backend engineering experience building/operating production distributed systems; strong programming in Go/Java/Rust; production debugging, observability, on-call experience; clear AI usage in engineering work.
Go, Java, Rust
1mo
Save
Mark Applied
Hide
CAD Integrations Backend Engineer
Boston or United States
$110k-$175k/yr HybridFull Time
5+ YOEBS/MS in a technical field, 5+ years building backend services, strong Python, experience with commercial CAD APIs and cloud-native backend systems, Protobuf/gRPC, Docker/Kubernetes, and working with 3D engineering data.
Python, Siemens NX Open, CATIA, SOLIDWORKS API, Creo Toolkit, Autodesk Inventor API, Protobuf, gRPC, Google Cloud, TypeScript, Next.JS, React.JS, GitHub Actions, Docker, Kubernetes, Spinnaker, PostgreSQL, C++
2mo
Save
Mark Applied
Hide
Senior Backend Engineer, Data Systems (Modeling & Simulation)
Boston or San Francisco or United States
HybridFull Time
Experienced backend engineer with strong relational data modeling, SQL/PostgreSQL expertise, Python, ORMs/migrations, data contracts, and building durable database-backed systems.
PostgreSQL, SQL, Python, SQLAlchemy, Alembic, PostGIS, Pydantic, JSON Schema, protobuf, OpenAPI
6d
Save
Mark Applied
Hide
Knowledge Engineer Manager - Back-end Engineer
Seattle or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York City or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$80k-$294k/yr HybridFull Time
5+ YOEMinimum 5 years in knowledge graph hydration, ontology mapping, graph and relational databases, vector databases, Python or Java, and REST API development; bachelor's degree or equivalent experience required.
RDF, OWL, SKOS, RDFS, SPARQL, R2RML, CSVW, SHACL, GraphDB, Stardog, Neo4j, Amazon Neptune, PostgreSQL, MySQL, SQL Server, Pinecone, Weaviate, Milvus, Qdrant, Elasticsearch, OpenSearch, Python, Java, SQL, JSON, XML, CSV, REST APIs, Apache NiFi, Airflow, Docker, Kubernetes, Helm, AWS Neptune, Azure Cosmos DB, GCP, Kafka, RabbitMQ, Git, GraphQL APIs, D3.js, Cytoscape.js, Terraform
1w
Save
Mark Applied
Hide
Senior Backend Developer (Node JS)
Plano or Boston
HybridFull Time
8+ YOE8+ years backend experience with Node.js, JavaScript/TypeScript, NestJS/Express, GraphQL, AWS, microservices, SQL/NoSQL databases, CI/CD, and observability in Agile teams.
Node.js, JavaScript, TypeScript, NestJS, ExpressJS, GraphQL, AWS Lambda, AWS AppSync, AWS CDK, PostgreSQL, MySQL, Amazon RDS, DynamoDB, MongoDB, Redis, Docker, Kubernetes, GitHub Actions, GitLab CI, Jenkins, CloudWatch, ELK, Prometheus, Grafana, OpenTelemetry, Java, J2EE, Spring Boot, React
2mo
Save
Mark Applied
Hide
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
8h
Save
Mark Applied
Hide
Senior Backend Engineer / Technical Lead
Lausanne or Boston
HybridFull Time
8+ YOE8+ years of backend engineering experience; proficiency in Java 17+, distributed systems, AWS, Docker, Kubernetes/ECS, Redis, Apache Kafka, observability, and English communication.
Java, AWS, Docker, Kubernetes, ECS, Redis, Apache Kafka, Micronaut, Spring, Python, GitOps, CI/CD, Infrastructure as Code (IaC)
2w
Save
Mark Applied
Hide
Sr. Software Engineer (Back End)
Boston, Massachusetts, United States
$176k-$184k/yr HybridFull Time
5+ YOE5+ years building concurrent distributed systems; proficiency with Elixir, OTP, Phoenix, PostgreSQL; experience with WebSocket/REST APIs and Terraform; BS/MS in CS or related field.
Elixir, OTP, Phoenix, PostgreSQL, WebSocket, REST, Terraform
3mo
Save
Mark Applied
Hide
Senior Backend Engineer (Ruby on Rails/Python) - Content Foundations
San Francisco or Atlanta or Austin or Boston or Chicago or Dallas or Denver or Houston or Jacksonville or Los Angeles or Miami or New York City or Phoenix or Portland or Sacramento or Salt Lake City or San Diego or Seattle or Washington, D.C. or Ottawa or Toronto or Vancouver or Mexico City
$120k-$217k/yr HybridFull Time
7+ YOE7+ years software engineering; experience with ingestion pipelines, ETL, and content processing; proficient in Ruby, Python, or Go; AWS and distributed workflows; strong DB design; effective communicator.
Ruby, Python, Go, AWS, SQL, NoSQL, ETL, LLM
1mo
Save
Mark Applied
Hide
Staff Software Engineer, Backend
Boston or United States
$151k-$309k/yr HybridFull Time
8+ YOE8+ years building backend services; proficient in Java or Kotlin; experience with microservices, containerization, databases, API and service design; React experience; strong communication and technical leadership.
Kotlin, Java, React, Claude Code, GitHub Copilot, DynamoDB, PostgreSQL
2w
Save
Mark Applied
Hide
Backend Software Engineer, Python
Zürich or Amsterdam or Boston
HybridFull Time
Backend development experience in cloud environments, proficiency with Python, familiarity with database architecture and data warehouses, strong communication and collaboration with scientists.
Python
3mo
Save
Mark Applied
Hide
Software Engineer II (Backend, Healthcare)
Boston, Massachusetts, United States
$125k-$175k/yr OnsiteFull Time
Backend development with Java, Kafka, Postgres; AWS; testing and documentation; data-driven, agile development.
Java, Kafka, Postgres, AWS, RESTful APIs, SQS
2w
Save
Mark Applied
Hide
Sr. Software Engineer (Back End)
Boston, Massachusetts, United States
$176k-$184k/yr HybridFull Time
5+ YOE5+ years building concurrent distributed systems; proficiency with Elixir, OTP, Phoenix, Postgres, WebSocket and REST; strong system design and communication skills.
Elixir, OTP, Phoenix, Postgres, PostgreSQL, WebSocket, REST, Terraform
2mo
Save
Mark Applied
Hide
Staff Software Engineer (Backend)
Boston or Cambridge
HybridFull Time
10+ YOE10+ years backend development with 2+ years in a staff/principal role; deep Python and FastAPI experience; distributed systems, SQLAlchemy/PostgreSQL, GCP, AI/LLM integration, technical leadership, RFCs and architecture design.
Python, FastAPI, SQLAlchemy, Pydantic AI, FastMCP, Alembic, PostgreSQL, Redis, REST, WebSockets, SSE, MCP, Anthropic Claude, Google Gemini, OpenAI, Vertex AI Model Garden, Mistral OCR, Google Cloud Platform, Cloud Run, Cloud SQL, GCS, VPCs, IAM, Auth0, Terraform, Docker, GitHub Actions, Logfire, Sentry, OpenTelemetry, pytest, pytest-asyncio, pytest-cov
Explore Jobs