61 python backend developer jobs at 32 companies in Gardner, MA

2mo
Save
Mark Applied
Hide
Senior Backend Engineer
Cambridge, Massachusetts, United States
$150k-$200k/yr OnsiteFull Time
Blitzy
Blitzy: Autonomous AI platform for enterprise software development.
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
3w
Save
Mark Applied
Hide
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
3mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
1w
Save
Mark Applied
Hide
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
3w
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
4w
Save
Mark Applied
Hide
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
4w
Save
Mark Applied
Hide
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
5h
Save
Mark Applied
Hide
Senior Software Engineer I/II, Back-end/Data, Robotics
Cambridge, Massachusetts, United States
$144k-$240k/yr OnsiteFull Time
Lila Sciences
Lila Sciences: Develops an AI platform for autonomous scientific research and discovery.
4+ YOERequires 4–8 years of backend engineering with Python and FastAPI, data pipelines, SQL, PostgreSQL, S3, cloud-native delivery, containers, infrastructure as code, CI/CD, and end-to-end service ownership.
Python, FastAPI, Temporal, Flyte, SQL, PostgreSQL, Amazon S3, AWS EKS, Docker, Amazon ECR, Terraform, GitHub Actions, Ray, Weights & Biases, NATS, MQTT
3mo
Save
Mark Applied
Hide
Software Engineer, Generalist (C++/Python)
Boston or Billerica
$140k-$180k/yr OnsiteFull Time
Fabri
Fabri: Provider of AI-enhanced manufacturing software for metal casting.
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
1mo
Save
Mark Applied
Hide
Senior Java Full Stack Developer – Python & Angular (Hybrid)
Westborough, Massachusetts, United States
$65k-$112k/yr HybridFull Time
Cognizant
CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.
7+ YOE7+ years experience; strong Java backend, Angular front-end, and Python skills; Oracle/PLSQL; OOP; AI-assisted development tools; test automation; Git; Agile tools (JIRA, Zephyr Scale, Confluence); must be authorized to work in the US.
AI-assisted development tools, Java, Angular, Python, Oracle, PL/SQL, Git, JIRA, Zephyr Scale, Confluence
1w
Save
Mark Applied
Hide
Senior Java Full Stack Developer – Python & Angular (Hybrid)
Westborough or Boston
$65k-$112k/yr HybridFull Time
Cognizant
CognizantNasdaq: CTSH: Provides IT consulting and digital business process services.
7+ YOE7+ years experience building enterprise applications; strong Java backend, Python scripting, Angular frontend, Oracle/PL/SQL, test automation, DevOps and Agile tool experience; must be authorized to work in the US without sponsorship.
Java, Python, Angular, Oracle, PL/SQL, Git, JIRA, Zephyr Scale, Confluence
2mo
Save
Mark Applied
Hide
Senior Product Engineer
New York or Cambridge
$200k-$230k/yr HybridFull Time
GrowthFactor
GrowthFactor: AI-powered operating system for retail real estate site selection.
4+ YOEBachelor's degree or equivalent experience; strong backend and full-stack experience in Python or TypeScript; data pipeline and orchestration experience; ability to design data models and coordinate queries across sources.
Python, TypeScript, Dagster, Airflow, PostgreSQL, PostGIS, GeoJSON, Zero, ElectricSQL, Model Context Protocol (MCP)
2w
Save
Mark Applied
Hide
Staff Software Engineer
St. Louis or Burlington
$111k-$166k/yr HybridFull Time
Merck
MerckXETRA: MRK: A science and technology providing healthcare, life science, and electronics solutions.
3+ YOEBachelor's in CS or related, 3+ years applied ML/data experience, strong Python and backend skills, experience with cloud, distributed systems, and large-scale data processing; leadership and mentoring experience preferred.
Python, REST API, Pandas, NumPy, AWS Services, GCP, Kubernetes, Bedrock, Kafka, LangGraph, LangChain, AirFlow, Qdrant, MLFlow, TensorFlow, PyTorch, Scikit-learn, Docker, Git, CI/CD