95 backend developer jobs at 49 companies in Gardner, MA

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Senior Backend Engineer
Cambridge or Pune
$140k-$180k/yr OnsiteFull Time
Blitzy
Blitzy: Autonomous AI platform for enterprise software development.
5+ YOESenior backend engineer with 5–8 years of software engineering, solutions architecture, or technical leadership experience; strong enterprise development and SDLC knowledge.
AWS, GCP, Azure, Docker, Kubernetes, API design, CI/CD, Security protocols
3w
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Staff Backend Engineer
Somerville, Massachusetts, United States
$140k-$170k/yr HybridFull Time
Modulate
Modulate: Provides real-time voice moderation and conversation intelligence software.
Strong object-oriented Python experience, API design and production experience, building and scaling backend systems, collaboration and mentorship skills.
Python
1mo
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Backend Software Engineer
Waltham or Boston
$127k-$171k/yr HybridFull Time
ERGO NEXT Insurance
ERGO NEXT Insurance: Provides digital insurance tailored for small business owners and entrepreneurs.
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
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Backend Software Engineer
Waltham or Boston or United States
$127k-$171k/yr HybridFull Time
ERGO NEXT Insurance
ERGO NEXT Insurance: Digital insurance provider tailored for small businesses and entrepreneurs.
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
3mo
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Backend Engineer
Somerville, Massachusetts, United States
$140k-$170k/yr OnsiteFull Time
Health Payment Systems
Health Payment Systems: Healthcare payments, provider network, and patient financing platform.
Strong object-oriented Python; API design in production; collaborate in engineering; build and scale systems; improve reliability and performance.
Python, APIs, Object-Oriented Programming
3mo
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Java Backend Engineer
Merrimack, New Hampshire, United States
$88k-$153k/yr OnsiteFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
6+ YOE6+ years backend Java experience with Spring/Spring Boot, API/microservices design, Oracle/DB2 and PL/SQL, CI/CD with Git/Jenkins/uDeploy, DevOps tooling; bachelor's degree required.
Java, Spring, Spring Boot, PL/SQL, Oracle, DB2, Git, Jenkins, uDeploy, Sonar, HP Operations Orchestration, ServiceNow, HP Service Manager, RESTful (Rest-APIs)
3mo
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Staff Backend Software Engineer
San Francisco or Cambridge
$180k-$225k/yr OnsiteFull Time
Lumafield
Lumafield: Accessible industrial CT scanners and cloud-based analysis software
10+ YOE10+ years backend software development; expert Python, Django/DRF; PostgreSQL, AWS (S3, RDS/Aurora, IAM); Celery; Kubernetes; Docker; SOC2/ISO27001 security familiarity; scalable cloud architectures.
Python, Django, DRF, Celery, PostgreSQL, AWS, S3, Aurora, IAM, VPC, SageMaker, Kubernetes, Docker
2mo
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Backend Software Engineer
Yokne'am Illit or Needham
HybridFull Time
Silk
Silk: Software-defined cloud storage platform for mission-critical applications.
BSc in CS or Software Engineering, proven system-level software development experience in Linux, multi-threaded programming, strong analytical and communication skills in Hebrew and English.
C, C++, Linux, Linux kernel
1mo
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Senior Backend Software Engineer
Watertown, Massachusetts, United States
OnsiteFull Time
Flexcompute
Flexcompute: Develops GPU-native multiphysics simulation software for hardware engineers.
Bachelor's in CS/CE required; senior-level backend experience with Java, Python, or C++; strong AWS/cloud, Docker/Kubernetes, distributed systems, Linux, infrastructure automation (Terraform/Ansible), and web API design.
Java, Python, C++, AWS, Docker, Kubernetes, Linux, Terraform, Ansible, Slurm, Flow360, Tidy3D, CI/CD, HPC
3mo
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Backend Software Engineer – Robotics Platform
Charlestown, Massachusetts, United States
$120k-$185k/yr HybridFull Time
Pickle Robot
Pickle Robot: Automated robotic systems for unloading trucks and containers.
5+ YOE3–7 years backend or distributed systems; strong Python; C++ or similar; software architecture; experience with event-driven or microservices; robotics/ hardware exposure a plus.
Python, C++, Kafka, ROS
3w
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Staff Backend Software Engineer
Cambridge, Massachusetts, United States
$180k-$200k/yr HybridFull Time
Sense
Sense: Provides real-time home energy monitoring and smart meter intelligence.
8+ YOE8+ years experience, degree in relevant field required, mastery of Java, Linux, and AWS; REST API design; DevOps/SRE and production experience; security and privacy knowledge.
Java, Linux, AWS, REST APIs, Cassandra, MySQL, Kafka, Python
4w
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Java Backend Engineer (Onsite Hybrid)
Merrimack, New Hampshire, United States
$97k-$145k/yr HybridFull Time
NTT DATA
NTT DATA: Global provider of IT and business consulting services.
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
4w
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Java Backend Engineer (Onsite Hybrid)
Merrimack, New Hampshire, United States
$97k-$145k/yr HybridFull Time
NTT DATA
NTT DATATokyo Stock Exchange: 9613: Global provider of business and technology consulting and IT services.
10+ YOE10+ years Java full‑stack experience, 6+ years with Spring/Spring Boot, 5+ years cloud (Azure preferred), 6+ years REST/microservices, bachelor’s in a tech field, strong communication and testing skills.
Java, Spring, Spring Boot, Microsoft Azure, RabbitMQ, Kafka, Service Bus, Oracle, Postgres, Jenkins, jUnit, Cucumber, Selenium
1mo
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Software Engineer - Backend (Fall 26' Intern)
Natick, Massachusetts, United States
$28-$32/hr OnsiteInternship
Delsys
Delsys: Designs and manufactures advanced wearable electromyography and physiological sensors.
Currently enrolled or recently graduated in CS/CE or similar; fluent in Java, C#, or C++; strong OOP and back-end development experience for Windows or Linux; wearable sensor experience useful; must show valid work eligibility.
Java, C#, C++, Windows, Linux
3w
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Distinguished Engineer, Back End (Remote Eligibe)
Cambridge or United States or McLean or Richmond or New York City
$245k-$335k/yr RemoteFull Time
Capital One
Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.
7+ YOEBachelor's degree and 7+ years in software engineering/architecture, experience with distributed HPC/ML systems, cloud platforms, and mentoring; strong coding and AI/ML practice.
AI and ML frameworks, AWS, Microsoft Azure, Google Cloud, Python, Java, Go, Scala, JavaScript, TypeScript
2mo
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Staff Software Engineer (Backend)
Boston or Cambridge
HybridFull Time
Axiomatic AI
Axiomatic AI: Verified AI platform for scientific and engineering hardware design.
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
2mo
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Senior Back End Software Developer (AI, Java, Vert.x, AWS) - Remote US
Waltham, Massachusetts, United States
$130k-$158k/yr RemoteFull Time
Revvity
RevvityNYSE: RVTY: Sells laboratory equipment and diagnostic tests for healthcare research.
5+ YOE5-7 years Java, 3-5 years Reactive (Vert.x), 1-2 years AI tooling, 3-5 years Web Services/REST APIs
Java, Vert.x, AWS, AI tools, RESTful APIs
3w
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Backend C2 Systems Full Stack Developer
Hanscom AFB or Hampton
$113k-$257k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
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
3w
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Backend C2 Systems Full Stack Developer
Hanscom Air Force Base, Massachusetts, United States
$113k-$257k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
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
6d
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Senior Software Engineer - Backend Python
Nashua, New Hampshire, United States
$97k-$165k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
6+ YOEBachelor's in CS or related, 6+ years backend Python experience, mastery of Python 3.x and AsyncIO, gRPC/Protobuf, Docker/Kubernetes, PostgreSQL, and ability to obtain U.S. Secret clearance.
Python, AsyncIO, gRPC, Protocol Buffers (Protobuf), FastAPI, Flask, Django, PostgreSQL, SQLAlchemy, Docker, Kubernetes, Kafka, RabbitMQ, Redis, C#, OAuth2, JWT