Backend Python Developer Jobs in Rye, NH, US

1mo

Save

Mark Applied

Hide

1mo

Senior Backend Engineer

Cambridge, Massachusetts, United States

$150k-$200k/yr OnsiteFull Time

Blitzy: Provides an autonomous AI platform for enterprise software development.

Senior backend engineer with Python, Terraform, and GCP experience; plus familiarity with backend frameworks, cloud platforms, APIs, databases, CI/CD, version control, and microservices.

Python, Terraform, Google Cloud Platform, AWS, Azure, Node.js, NuxtJS, Express.js, JavaScript, TypeScript, Java, C++, Go, REST, gRPC, GraphQL, SQL, NoSQL, PostgreSQL, MongoDB, Firebase, Jenkins, CircleCI, GitLab, Git, Perforce

1mo

Save

Mark Applied

Hide

1mo

Senior Backend Software Engineer

Boston, Massachusetts, United States

$150k-$180k/yr OnsiteFull Time

Rebet: Social sportsbook platform for free-to-play sports predictions.

Design, develop, and scale high-performance backend systems using Python; ensure API reliability, security, and regulatory compliance; mentor engineers and collaborate across teams.

Python, API development, CI/CD, infrastructure automation, data pipelines

3mo

Save

Mark Applied

Hide

3mo

Senior Backend Software Engineer

San Francisco or Boston or Denver or New York

$160k-$207k/yr HybridFull Time

Semgrep: Developer of a code analysis and application security platform.

3+ YOEBackend engineering with experience in distributed systems, databases, and APIs. Familiarity with Python, SQLAlchemy, and cloud deployments preferred.

Typescript, Python, Flask, SQLAlchemy, Kubernetes, AWS, React

1mo

Save

Mark Applied

Hide

1mo

Sr. Software Engineer - Backend

Lowell, Massachusetts, United States

$86k-$159k/yr HybridFull Time

Magna InternationalNYSE: MGA: Designs and manufactures automotive systems and complete vehicle assemblies.

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

Save

Mark Applied

Hide

Senior Backend Engineer, Enterprise AI

San Mateo or Boston or New York City or Salt Lake City or Lahore

HybridFull Time

Overjet: AI platform for dental diagnostics and practice management.

Proven backend development experience; scale enterprise AI product; cloud platforms; mentoring; agile culture; strong communication; AI in workflows.

Go, Python, Java, Google Cloud Platform, Amazon Web Services, Microsoft Azure

1mo

Save

Mark Applied

Hide

1mo

Sr Backend Software Engineer

Boston, Massachusetts, United States

$140k-$150k/yr HybridFull Time

Vista Higher Learning: Provides digital and print language learning materials for schools.

7+ YOE7+ years as a Senior Software Engineer with Ruby/Rails or Python + JavaScript; architecture, APIs, SQL, AWS; strong LLM and networking knowledge; collaborative, communicative; BS degree.

Ruby on Rails, Python, JavaScript, MySQL, PostgreSQL, Redis, Elasticsearch, AWS, Git

Save

Mark Applied

Hide

(Junior – Senior) Software Engineer - Backend/Platform

Somerville, Massachusetts, United States

$90k-$125k/yr HybridFull Time

Laminar: Provides AI-powered spectral sensors for industrial manufacturing optimization.

Backend/Platform engineering with strong Python/SQL skills; experience with AWS/Azure; data pipelines; Terraform; NoSQL; security best practices.

Databricks, Terraform, SQL, NoSQL, AWS, Azure, Python, PHP

Save

Mark Applied

Hide

Senior CAD Backend Engineer - Mechanical/CAD Automation (CAD API Expertise)

Boston, Massachusetts, United States

RemoteFull Time

Foundation EGI: AI-powered platform for industrial engineering and manufacturing automation

5+ YOE5+ years backend, 3+ years CAD API experience (Siemens NX, CATIA, PTC), Python, Protobuf, cloud-native, 3D data.

Python, TypeScript, Protobuf, gRPC, Docker, Kubernetes, Spinnaker, PostgreSQL, Google Cloud, GitHub Actions, Next.JS, React.JS

Save

Mark Applied

Hide

Technical Lead, Backend (Civil Aviation)

Boston, Massachusetts, United States

OnsiteFull Time

Air Space Intelligence: Provides predictive AI software for aviation and defense operations.

3+ MgmtExperience building production-grade backend or distributed systems; proficiency in Rust and/or Python; real-time data pipelines; AWS; lead small engineering teams; end-to-end ownership.

Rust, Python, AWS

Save

Mark Applied

Hide

Senior Lead Software Engineer, Back End (Python/Node.js)

McLean or New York City or Cambridge

$230k-$286k/yr OnsiteFull Time

Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.

6+ YOESenior backend software engineer with 6+ years experience, cloud (AWS/Azure/GCP), leadership experience preferred; strong Java, Python, Node.js, Go, Scala, and cloud/container tech.

Java, Python, SQL, Node.js, Go, Scala, Docker, Kubernetes, AWS, Azure, GCP

1mo

Save

Mark Applied

Hide

1mo

Principal Software Engineer, Backend

Cambridge, Massachusetts, United States

$167k-$209k/yr HybridFull Time

Cambridge Mobile Telematics: Providing telematics and behavioral analytics for safer driving and insurance.

9+ YOE9+ years of backend software engineering experience; strong Python; cloud (AWS) and CI/CD; scalable systems; TDD.

Python, C++, AWS, Docker, Terraform, Terragrunt, PostgreSQL, S3, EC2, Lambda, SNS, SQS, RDS

Save

Mark Applied

Hide

Software Engineer II (Backend, Hardware Accelerate)

Boston, Massachusetts, United States

$125k-$175k/yr OnsiteFull Time

WHOOP: Providing wearable health trackers and physiological performance analytics.

Python backend development, API design, distributed systems; data pipelines and hardware workflows; collaborative in a fast-paced environment; interest in hardware; AI tooling; bonus frontend experience.

Python, APIs, Distributed Systems, Data Pipelines, Hardware Tools Integration, React, Vue, Angular

2mo

Save

Mark Applied

Hide

2mo

Lead Software Engineer - Python | Backend

Barcelona or Boston or Monterrey or Indore

HybridFull Time

Trivelta: Builds modular technology for social-first sportsbooks and casinos

Based in Barcelona or willing to relocate; fluent English; European language is a plus; 2+ years outbound sales; 3+ years as Account Executive; experience selling B2B software; strong communication; willingness to travel; EU work authorization; no visa sponsorship.

2mo

Save

Mark Applied

Hide

2mo

Software Engineer II - Channel Rendering and Engagement

Boston, Massachusetts, United States

$116k-$174k/yr OnsiteFull Time

KlaviyoNYSE: KVYO: Software for automating personalized email and SMS marketing campaigns.

3+ YOE3+ years in software engineering; distributed systems; end-to-end solutions; AI tools familiarity; code reviews and robust testing; agile environment.

Python, Go, AWS, Cloud Native

1mo

Save

Mark Applied

Hide

1mo

Senior Software Engineer / Back-End Developer

Arlington or Woburn

$134k-$184k/yr OnsiteFull Time

Systems & Technology Research: Develops advanced technology for national security and defense applications.

5+ YOE5+ years of enterprise back-end software experience; active Secret security clearance with Top Secret eligibility; degree in software engineering, computer engineering, or computer science; mobile OS knowledge; OO programming, Linux, and shell scripting; design of platform components.

Linux, Shell scripting, CUDA, AWS, Python, Java, C++, Machine Learning, ETL, Geospatial, SQL

1mo

Save

Mark Applied

Hide

1mo

Senior Software Engineer

Waltham or Lexington or North Bethesda

$119k-$155k/yr HybridFull Time

XometryNASDAQ: XMTR: Operates an AI-powered marketplace for custom manufacturing and prototyping.

6+ YOE6+ years in software development; full-stack experience; Python backend; React/Typescript; AWS; SQL and MongoDB; Docker/Kubernetes; strong debugging and testing.

Python, React, Typescript, HTML, CSS, AWS, SQL, MongoDB, Docker, Kubernetes

1mo

Save

Mark Applied

Hide

1mo

Artificial Intelligence Engineer

Boston, Massachusetts, United States

$110k-$160k/yr OnsiteFull Time

Plymouth Rock Assurance: Providing personal and commercial property and casualty insurance products.

2+ YOEExperience building LLM-powered AI applications; strong Python skills; knowledge of ML stack, RAG, MCP, prompt engineering, and API/backend development.

Python, NumPy, Pandas, SciPy, Scikit-learn, OpenAI, Anthropic, Google, Hugging Face, LangChain, LlamaIndex

2mo

Save

Mark Applied

Hide

2mo

Senior Software Engineer

New York or Boston

$155k-$185k/yr RemoteFull Time

RapidSOS: Connects data from smart devices directly to emergency responders.

5+ YOE5+ years backend or full stack development; Python and/or Node; RESTful APIs; cloud (AWS); databases; AI-driven features; strong teamwork; proactive learning.

Python, Node.js, AWS, RESTful APIs, RabbitMQ, Kafka, SQS, WebSockets, Infrastructure as Code

Save

Mark Applied

Hide

Principal Software Engineer

Boston, Massachusetts, United States

HybridFull Time

VeriskNasdaq: VRSK: Provides data analytics and risk assessment for global insurance.

10+ YOE BS in CS; MS preferred; 10+ years backend software development; OO/design patterns; C#, Angular, PostgreSQL, Python; cloud infra and containerization; AWS preferred.

AWS, C#, Angular, Python, PostgreSQL, SQL, Glue, Aurora

Save

Mark Applied

Hide

Software Engineer II

Cambridge or New York

$130k-$175k/yr OnsiteFull Time

Kensho: Developing AI and machine learning for financial data analysis.

2+ YOETwo+ years of SaaS backend development; API experience; strong communication; full lifecycle software development; knowledge of algorithms and data structures.

Python, FastAPI, Django, PostgreSQL, OpenSearch, Git, Jsonnet, Jenkins, AWS, EKS, Celery, RabbitMQ, Prometheus, Grafana, Sentry

1mo

Save

Mark Applied

Hide

1mo

Senior Software Engineer, Voice AI

Boston or New York or Remote

$138k-$221k/yr HybridFull Time

ToastNYSE: TOST: Cloud-based technology platform for the restaurant and hospitality industry.

5+ YOE5+ years fullstack web development; backend Java/Kotlin and Python; React frontend; AWS; Docker; Git; Figma to UI; scalable DB design; AI/LLM integration.

Java, Kotlin, Python, React, Tailwind, Bootstrap, AWS, Docker, Git, Figma

Save

Mark Applied

Hide

Principal Software Engineer

Nashua, New Hampshire, United States

$116k-$197k/yr OnsiteFull Time

BAE SystemsLondon Stock Exchange: BA.: Produces advanced defense, aerospace, and information security systems.

4+ YOEBachelor's in CS/EE, 4+ years Python, backend microservices, modular architecture, automated testing, and DevSecOps experience.

Python, Git, Kubernetes, Pytest, Unittest, Docker

Save

Mark Applied

Hide

Senior Software Engineer - Java, Angular

Johnston or Iselin or Westwood or Medford or Phoenix

$107k-$161k/yr OnsiteFull Time

Citizens Financial GroupNYSE: CFG: Provides retail, commercial, and private banking services to customers.

5+ YOE5+ years software development; 3+ years requirements gathering and design; strong collaboration; multi-language experience including frontend (Angular/React/Vue) and backend (Java/Python/JavaScript).

Java, Angular, Python, JavaScript, Golang, C, C++, Linux, AWS, Azure, GCP, CI/CD, Flowable, Banking

2mo

Save

Mark Applied

Hide

2mo

AI Engineer I

Boston, Massachusetts, United States

$104k-$156k/yr OnsiteInternship

KlaviyoNYSE: KVYO: Software for personalized email and SMS marketing automation.

0+ YOEPursuing advanced degree in CS/AI/ML; internship in AI; Python backend experience; building AI apps; thrive in startup-like environment.

Python, FastAPI, Django

1mo

Save

Mark Applied

Hide

1mo

Principal Software Engineer- AI

Boston, /, United States

$174k-$287k/yr HybridFull Time

Red Hat: Provides enterprise-grade open source software and cloud solutions.

7+ YOE7+ years in NLP with Python and NLP frameworks; experience in Generative AI, AWS, and scalable backend microservices.

Python, SpaCy, Hugging Face, TensorFlow, TensorFlow Serving, Keras, PyTorch, AWS

2mo

Save

Mark Applied

Hide

2mo

Staff AI Agent Engineer

Boston or Berkeley

HybridFull Time

Liberate: Automates insurance operations using conversational AI agents.

6+ YOE6+ years software engineering; Python; backend; LLMs; customer-facing; strong ownership.

Python, APIs, Cloud, LLMs, Agent Frameworks

Save

Mark Applied

Hide

Senior Full Stack Software Developer

Boston, Massachusetts, United States

$170k-$190k/yr HybridFull Time

Nexamp: Provides community solar and energy storage solutions.

7+ YOE7+ years of full stack software development; strong React/Typescript frontend and Python Django or FastAPI backend; solid SQL and cloud exposure; Git/CI/CD; Terraform; able to mentor others and drive initiatives.

React, Typescript, Python, Django, FastAPI, Azure, SQL, Terraform, Git, CI/CD

Save

Mark Applied

Hide

Staff Software Engineer - Applied AI

Boston, Massachusetts, United States

$175k-$250k/yr RemoteFull Time

Forward Financing: Provides fast, flexible capital to underserved small businesses.

Bachelor’s or Master’s in CS/Engineering; backend engineer with Python (Ruby/Go a plus); design scalable APIs; cloud and AI ecosystem knowledge.

Python, Ruby, Go, AWS, Snowflake, OpenAI, Claude, Hugging Face, Langchain

Save

Mark Applied

Hide

Machine Learning Engineer

Manchester, New Hampshire, United States

OnsiteFull Time

DEKA Research & Development: Designs and develops advanced medical and robotic technologies.

6+ YOEMS in CS or AI; 6+ years backend and distributed systems; strong Java/Python; production ML models; Kafka/Spark; microservices; databases; AWS.

Java, Python, Spring Framework, Hibernate, PyTorch, Kafka, Spark, ZooKeeper, AWS, REST APIs, NoSQL databases, SQL databases

Save

Mark Applied

Hide

AI Software Engineer (GenAI/RAG/Azure AI Foundry)

Boston, Massachusetts, United States

HybridFull Time

The Phia Group: Provides cost containment and recovery services for health plans.

Experience with GenAI, Retrieval-Augmented Generation (RAG), Azure AI Foundry, Python, backend/full-stack development, and deploying AI solutions on Azure; familiarity with Docker/Kubernetes; SQL/NoSQL.

Python, FastAPI, Docker, Kubernetes, Azure, Azure Kubernetes Service, Azure AI Foundry, Azure OpenAI, Azure ML, SQL, NoSQL, Angular, Spring Boot, Node.js

Save

Mark Applied

Hide

Principal Software Engineer

Boston, Massachusetts, United States

$152k-$229k/yr RemoteFull Time

Recorded Future: Provides AI-driven threat intelligence to protect organizations from cyberattacks.

5+ YOE5+ years in data/backend/platform engineering; strong Python; cloud infra; Kafka/RabbitMQ; SQL/NoSQL; ETL/ELT; CI/CD; IaC; high-volume data, security domain interest.

Python, Go, Rust, Kafka, RabbitMQ, PostgreSQL, AWS, Delta Lake, Neo4j, Flask, Django, FastAPI, Terraform, GitHub Actions, CI/CD, Infrastructure as Code

1mo

Save

Mark Applied

Hide

1mo

Senior Software Engineer

Burlington, Massachusetts, United States

OnsiteFull Time

Enigma Aerospace: Building autonomous long-range cargo aircraft for heavy-lift logistics.

5+ YOESenior software engineer with 5+ years in backend/autonomy/robotics; proficient in Python and C++; capable of full-stack work, real-time systems; eligible to work in the U.S.

Python, C++, ROS, PX4, UAS, Telemetry, Flight controls, Avionics

1mo

Save

Mark Applied

Hide

1mo

Staff Software Engineer – AI & MCP

Boston, Massachusetts, United States

OnsiteFull Time

RevSpring: Provides patient engagement and payment solutions for healthcare providers.

7+ YOELead backend AI and MCP services; build Java/Python microservices; optimize Elasticsearch; design and implement large-scale data pipelines and integrations.

Java, Python, Elasticsearch, Apache Beam, Google Cloud Dataflow, Airflow, BigQuery, Docker, GitHub Actions, GCP, REST, SOAP

1mo

Save

Mark Applied

Hide

1mo

Senior Software Engineer

Boston, Massachusetts, United States

$90k-$180k/yr HybridFull Time

Wellington Management: Provides investment management services to institutional clients globally.

6+ YOE6–10+ years backend software engineering; experience with search technologies (Elasticsearch/OpenSearch); strong Node.js or Python; RESTful APIs; distributed systems; AWS; CI/CD; ranking and indexing knowledge.

Node.js, Python, Elasticsearch, OpenSearch, AWS, Docker, RESTful APIs

Save

Mark Applied

Hide

Staff Software Engineer

Cambridge or New York

$200k-$325k/yr HybridFull Time

Iterative Health: Develops AI-driven precision medicine for gastrointestinal clinical research.

10+ YOE10+ years software engineering; healthcare data systems; 2+ years in a high-growth startup; strong system integration; ML/AI tooling; data pipelines; backend with Python/SQL; production ML infrastructure.

Python, SQL, Cloud Infrastructure, EHR/EMR integrations, AI tooling

2mo

Save

Mark Applied

Hide

2mo

Senior Full-Stack Engineer

Culver City or Linthicum or Allen or Woodcliff Lake or Chicago or Orlando or Baton Rouge or Waltham or Phoenix or Harrisburg or West Valley City or Austin or Alpharetta or San Diego or Indianapolis or Lexington or Parma or Little Rock or Asheville or Birmingham or Chantilly or Washington or Brentwood or Plantation or Fort Collins or San Mateo or Schaumburg or Brooklyn

$140k-$180k/yr OnsiteFull Time

Motorola SolutionsNYSE: MSI: Provides safety and security technology for government and enterprise.

7+ YOE7+ years in software development; Bachelor's degree in CS/Engineering; backend (Node.js) and frontend (React) experience; API integrations; cloud and database experience.

Node.js, HapiJS, Python, JavaScript, React, SQL, Serverless, Lambda, CloudFormation, Elastic Beanstalk, EC2, VPC, DynamoDB, RDS, G Suite, Microsoft Graph, Okta, OneLogin, Slack, Linux, Docker, Datadog, CloudWatch, MQTT, log/data pipelines

Save

Mark Applied

Hide

Senior Software Engineer (C#/.NET & AI)

Chicago or New York City or Dallas or Boston or Portland

$122k-$146k/yr OnsiteFull Time

WEXNYSE: WEX: Provides global payment processing and business information management services.

7+ YOESenior software engineer with 7+ years of backend experience, strong C#/NET/Java/Python, REST APIs, React, databases, CI/CD, cloud (AWS/Azure).

C#, .NET, Java, Python, REST APIs, React, SQL Server, PostgreSQL, MySQL, MongoDB, Docker, Kubernetes, AWS, Azure, Git, CI/CD, Terraform

2mo

Save

Mark Applied

Hide

2mo

Senior Software Engineer, Full Stack

Boston, Massachusetts, United States

$134k-$190k/yr OnsiteFull Time

Ginkgo BioworksNYSE: DNA: Provides an automated platform for designing and engineering organisms.

6+ YOE6-8+ years in full-stack software engineering; strong Python backend; API design/consumption; modern JS frontend (React/TypeScript); AI tooling integration; collaboration with domain experts; solid CI/CD and testing.

Python, JavaScript/TypeScript, React, REST, GraphQL, GitHub Copilot, Docker, Kubernetes

Save

Mark Applied

Hide

Software Engineer Full Stack & Application Development II (Full Time) – United States

San Jose or New York or Boston or Knoxville or Austin or Milpitas or Alpharetta or Raleigh (RTP) or Maynard or Fulton or Dallas or Atlanta or Hillsboro

HybridFull Time

CiscoNASDAQ: CSCO: Develops and sells networking hardware and cybersecurity software.

0+ YOEBackend in Python/C++/Java; frontend JS/TS; REST/GraphQL/gRPC; SQL/NoSQL; cloud familiarity (AWS/Azure/GCP).

Python, C++, Java, JavaScript, TypeScript, REST, GraphQL, gRPC, SQL, NoSQL, AWS, Azure, GCP, Docker, Kubernetes, Terraform, Ansible, CloudFormation, GitHub Actions, Jenkins, CircleCI, Grafana, Prometheus, Splunk, React, Angular, Vue