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29 backend python jobs at 21 companies in Danbury, CT

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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
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
Help us #BeatIndeed & #BeatLinkedIn
1w
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Python AWS Developer
Hartford or Lafayette
$81k-$172k/yr HybridFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
6+ YOE6+ years Python backend development, REST API (FastAPI/Flask), strong SQL, hands-on AWS (Lambda,S3,SQS,DynamoDB,EC2,EKS), CI/CD and production support experience.
Python, FastAPI, Flask, AWS Lambda, Amazon S3, Amazon SQS, DynamoDB, Amazon EC2, Amazon EKS, Boto3, CloudWatch, Jenkins, GitHub Actions, Terraform, CloudFormation, OpenShift, Kubernetes, PostgreSQL, Aurora, Java, ReactJS, Spring Boot, SQL
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2mo
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Lead Software Engineer (Python, LLM) - AskGartner
Irving or Stamford
$116k-$170k/yr HybridFull Time
Gartner
GartnerNYSE: IT: Provides research and advisory services for business leaders.
Expert-level Python; backend services; FastAPI; AWS/Azure; SageMaker Pipelines; Pytest; PostgreSQL; Pandas; Git.
Python, Python FastAPI, AWS, Azure, AWS SageMaker Pipelines, pytest, Git, PostgreSQL, Parquet, JSON, CSV, Pandas, LangGraph, LangChain, OpenAI, Anthropic, Google, Locust, JMeter, AWS Athena, AWS S3, IAM, Splunk, AWS Secrets Manager, PySpark, Docker, Kubernetes, Terraform, OpenSearch, RAG systems, Cache technologies
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3mo
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Junior Software Engineer - Automation & Integration
Ridgefield, Connecticut, United States
OnsiteFull Time
Fletcher Development
Fletcher Development: Builds luxury custom homes and provides residential estate management services.
Backend development in .NET (C#) and Python; REST APIs; databases; payments security; AI tooling.
.NET (C#), Python, REST APIs, PostgreSQL, SQL Server, Stripe, QuickBooks API, OneSignal, Twilio, SendGrid, Copilot
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3mo
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Full Stack Engineer
Fort Lee, New Jersey, United States
$160k-$200k/yr OnsiteFull Time
Cross River
Cross River: Provides technology infrastructure and embedded financial solutions to fintechs.
4+ YOE4+ years of software development; strong React front-end; Python or Node.js backend; AWS; TDD/CI/CD; Agile; AI/LLM experience.
React, JavaScript, Python, Node.js, Express.js, AWS, Terraform, CDK, SQL, NoSQL, DynamoDB, S3, RDS, Lambda, API Gateway, CI/CD, TDD, OpenID Connect, OAuth2
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2w
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Senior Software Engineer
United States or White Plains
$170k-$200k/yr OnsiteFull Time
Veterinary Emergency Group
Veterinary Emergency Group: Operates a network of 24/7 emergency veterinary hospitals.
5+ YOE5+ years engineering experience, strong backend ownership, product judgment, experience with Python, PostgreSQL, AWS, CI/CD, and building reliable scalable systems.
Python, PostgreSQL, AWS
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2mo
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Lead Agentic AI Designer
Purchase, New York, United States
$150k-$254k/yr OnsiteFull Time
Mastercard
MastercardNYSE: MA: Global payment processing and financial technology service provider.
Strong experience building AI/ML or backend systems; hands-on with LLM-powered apps, RAG pipelines, agent-based systems; production-scale services; Python, APIs, distributed systems.
Python, APIs, Distributed systems, Cloud-native platforms
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2w
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Engineer
Stamford, Connecticut, United States
$70k-$75k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
6+ YOEBachelor's in Computer Science, 6+ years experience, proficiency in Java/Python/JS/TS, web/backend development, databases, cloud platforms, Kubernetes, and strong communication and problem-solving skills.
Java, Python, JavaScript, TypeScript, Django, Flask, Spring Boot, SQL, NoSQL, MongoDB, Snowflake, AWS, Azure, Kubernetes
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3w
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Software Engineer
New York City or Englewood Cliffs
$120k-$150k/yr HybridFull Time
Versant
VersantNasdaq: VSNT: Operates cable television networks and digital media entertainment platforms.
3+ YOE3+ years software development; backend (Java, Node.js, Python, Go), frontend (JavaScript/TypeScript, React/Vue/Angular), microservices and REST APIs, cloud (AWS/Azure), Git and CI/CD experience.
Java, Node.js, Python, Go, JavaScript, TypeScript, HTML, CSS, React, Vue, Angular, AWS, Azure, Git, GitHub Actions, Jenkins, Terraform, CloudFormation, Datadog, Prometheus, ELK
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3w
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Testing and Automation Engineer
Shelton, Connecticut, United States
$103k-$128k/yr OnsiteFull Time
Subway
Subway: Operates a global chain of quick-service sandwich restaurants.
3+ YOE3+ years testing/quality engineering experience; proficiency in test automation (UI/API/backend), performance testing, AI-assisted testing, CI/CD, and basic scripting in Java/JavaScript/Python/C#.
JMeter, Gatling, k6, Locust, Selenium, Cypress, Playwright, REST-assured, Postman, Java, JavaScript, Python, C#, CI/CD
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1w
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Senior Software Engineer - Confluent Applied AI for DevProd
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
$111k-$207k/yr HybridFull Time
IBM
IBMNew York Stock Exchange: IBM: Global technology providing enterprise software, cloud, and consulting.
Experience building backend production systems, proficiency in Java/Go/Python, cloud-native and Kubernetes experience, LLM application to engineering workflows, EMR not mentioned, strong testing and product mindset, collaborative skills.
Java, Go, Python, Kubernetes, GitHub, Jira, Slack, CI, LLMs
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1mo
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Agentic Solutions Engineer
Shelton, Connecticut, United States
HybridFull Time
BMG360
BMG360: Performance-focused marketing agency driving client growth.
3+ YOE3+ years backend/full-stack engineering with expert Python and strong TypeScript/React skills; experience building REST/GraphQL APIs, Django/DRF, Celery/Temporal, PostgreSQL, MCP protocol familiarity, and cloud (AWS/GCP).
Model Context Protocol (MCP), REST, GraphQL, Python, TypeScript, JavaScript, Django, Django REST Framework (DRF), React, React-Admin, FastAPI, Celery, Temporal, Pydantic, httpx, pytest, Node.js, PostgreSQL, Snowflake, WebSockets, SSE, OAuth2, JWT, OpenAPI, Swagger, Redoc, AWS, GCP, Lambda, Cloud Run, S3, GCS, Docker, GitHub Actions, Flowise, LangChain, Claude, Anthropic, GA4, Meta, Google
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3mo
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Senior Software Engineer, LIMS (Onsite)
Ramsey or Fort Myers or Aliso Viejo
OnsiteFull Time
NeoGenomics
NeoGenomicsNASDAQ: NEO: Provides specialized oncology diagnostic testing and clinical laboratory services.
7+ YOE7+ years Java software development experience, Bachelor's in Computer Science or equivalent, strong backend/REST and microservices skills, experience with Spring/Spring Boot and Python frameworks, SQL/NoSQL and cloud (AWS/Azure), authorized to work in the US.
Java, Spring, Spring Boot, Python, Flask, Django, FastAPI, RESTful APIs, microservices, SQL, NoSQL, PostgreSQL, MySQL, AWS, Azure, SAPIO LIMS, LabVantage, SDMS, ELN, CDS
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2mo
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Principal Engineer Software - Storage (Chronosphere)
Burbank or Denver or Chicago or Austin or Jacksonville or Hartford or Bridgeport or Seattle or Boston or New York City
$147k-$238k/yr RemoteAll Commitments Available
Palo Alto Networks
Palo Alto NetworksNASDAQ: PANW: Provides enterprise-grade network, cloud, and endpoint security software.
Design and build scalable backend services for high-volume telemetry data; strong backend skills; cloud infra experience; API design; mentorship.
Go, Java, Python, Rust, AWS, GCP, Azure, REST, gRPC, GraphQL
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6d
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Senior Software & Automation Engineer
Fort Lee, New Jersey, United States
$70k-$110k/yr OnsiteFull Time
USP Management
USP Management: Imports, processes, and distributes steel and aluminum coils.
5+ YOE5+ years software engineering experience; strong backend (TypeScript/Node.js, Python), full-stack (React/TypeScript), SQL databases, GCP experience preferred, bilingual English/Korean, ability to own end-to-end work and build AI-enabled automation.
TypeScript, Node.js, Python, React, BigQuery, Dataform, Data Studio, Google Apps Script, MySQL, PostgreSQL, GCP, AWS, Claude Code, ERP, SQL
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2w
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GIS Software Engineer
Hartford, Connecticut, United States
$97k-$145k/yr HybridFull Time
The Hartford
The HartfordNYSE: HIG: Provides business and personal insurance, group benefits, and investments.
2+ YOE2+ years software engineering experience; strong backend development with Java/Spring Boot, ArcGIS platform experience, Oracle geodatabases, Python, AWS, RESTful API design, and ability to work hybrid in Hartford, CT. Must be authorized to work in the US without sponsorship.
Java, Spring Boot, AWS, Python, Oracle, React, ArcGIS Enterprise, ArcGIS Pro, ArcPy, Jupyter Notebooks, Terraform, Arcade, PowerShell, Apigee, AWS API Gateway, GitHub, GitHub Copilot, Jenkins, SonarQube, SQL Server, PostgreSQL, Snowflake, Angular, FME
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1mo
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Senior AI Engineer
United States or New York City or Palm Beach or Los Angeles or Miami or Greenwich or Westchester County or The Hamptons or San Francisco or Manhattan
$190k-$250k/yr RemoteFull Time
Atria Health Institute
Atria Health Institute: Membership-based concierge practice providing preventive, precision-based medical care.
4+ YOE4+ years building and operating LLM-powered production ML systems, strong Python, backend framework experience (FastAPI/Flask), LLM orchestration and retrieval design, Snowflake/dbt/Dagster/Airflow familiarity, evaluation systems, HIPAA/PHI knowledge, and strong written communication.
Python, FastAPI, Flask, Snowflake, dbt, Dagster, Airflow, vLLM, Triton, TGI, SGLang, LOINC, SNOMED CT, ICD-10, RxNorm, FHIR, HL7
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1mo
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Associate, Front Office Software Engineer
Stamford or Houston
OnsiteFull Time
Castleton Commodities International
Castleton Commodities International: Invests in and manages global energy and commodity assets.
2+ YOEBachelor's or Master's in CS/STEM, 2+ years software engineering experience, strong CS fundamentals, backend Python proficiency, front-end experience (React/Angular/TypeScript) preferred, cloud (AWS) and data warehousing (Snowflake) familiarity, Linux and CI/CD experience, strong communication.
Python, React, Angular, TypeScript, AWS, Snowflake, Linux/Unix, CI/CD
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2mo
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Sr Software Engineer II - Global Commercial Services
Phoenix or Sunrise or New York
$123k-$215k/yr HybridFull Time
American Express
American ExpressNYSE: AXP: Global financial services and credit card payment network.
8+ YOE8+ years in software engineering; BS in IT/CS/Software Eng; full-stack incl. mobile/web; leadership; frontend TS/React/Angular; backend Node.js/Python/Ruby/Go; mobile React Native/native; cloud services; multiple data stores; Postgres/CockroachDB; workflow/orchestration.
AWS, S3, API Gateway, SQS, ECS, RDS, CockroachDB, PostgreSQL, React, Angular, Ruby on Rails, Node.js, Python, Go, React Native, Cordova, Ionic
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3mo
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Product Engineer
Bronx, New York, United States
$150k-$180k/yr HybridFull Time
Essen Health Care
Essen Health Care: Provides multispecialty medical care and home-based healthcare services.
3+ YOE3+ years software engineering; strong frontend and backend skills; product instinct; good design sense; comfortable with ambiguity.
Python, FastAPI, React, TypeScript, MSSQL, Redis, Azure, Terraform
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1mo
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Application & Data Engineering Contractor
Farmington, Connecticut, United States
$120k-$125k/yr HybridContract
Tech Mahindra
Tech MahindraNational Stock Exchange of India: TECHM: Global provider of information technology and business process services.
4+ YOEStrong Snowflake and SQL skills, Azure web and data engineering (Azure Data Factory), ETL/ELT experience, frontend (React.js/Angular), backend (.NET Core/Node.js/Python FastAPI), Redis, REST APIs, CI/CD with GitHub/GitLab/Azure DevOps.
Snowflake, SQL Server, Redis, React.js, Angular, HTML, CSS, JavaScript, TypeScript, .NET Core, Node.js, Python FastAPI, Azure Data Factory, Azure Blob Storage, Azure SQL Database, Azure Web Apps, Azure App Services, Azure Functions, Azure Key Vault, Managed Identity, Application Insights, Databricks, Matillion, Informatica, Talend, GitHub, GitLab, Azure DevOps, OAuth, SSO, JWT
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