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23 python backend developer jobs at 18 companies in Connecticut

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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
1mo
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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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2mo
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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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1w
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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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1mo
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Senior Software Engineer
New York City or Arizona or California or Colorado or Connecticut or Florida or Georgia or Maine or Maryland or Massachusetts or Michigan or Minnesota or New Jersey or New York or North Carolina or Oregon or Rhode Island or South Carolina or Tennessee or Texas or Virginia or Utah or Wisconsin
$165k-$185k/yr RemoteFull Time
Electric
Electric: Provides automated IT management and security services for businesses.
8+ YOE8+ years backend experience with modern Python stack, leadership experience, proficiency in Postgres/SQLAlchemy, AWS, Terraform, FastAPI, React/TypeScript, observability, and familiarity with AI-assisted development.
Python, FastAPI, Pydantic, PostgreSQL, SQLAlchemy, Alembic, Temporal, Redis, AWS RDS, AWS S3, AWS SQS, AWS DynamoDB, AWS ECS, AWS IAM, Terraform, React, TypeScript, Claude Code
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1mo
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Software Engineer
Illinois or Kentucky or Kansas or Idaho or Washington or Michigan or Florida or California or Texas or Oklahoma or Tennessee or North Carolina or Minnesota or Massachusetts or Indiana or Georgia or Arizona or Missouri or Alabama or Connecticut or District of Columbia or South Carolina or Oregon
$79k-$119k/yr HybridFull Time
Relativity
Relativity: AI-powered platform for legal discovery and data intelligence.
Backend software engineering role; experience with C# or Python; strong distributed systems knowledge; cloud experience preferred.
C#, Python, GitHub Actions, Azure, Kubernetes
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1w
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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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3w
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Software Engineer L3
United States or Colorado or Hawaii or Illinois or Maryland or Massachusetts or Minnesota or New Jersey or New York or Vermont or District of Columbia or Washington or California or Connecticut or Pennsylvania or San Francisco
$139k-$204k/yr RemoteFull Time
Twilio
TwilioNYSE: TWLO: Cloud communications platform for programmable messaging, voice, and email.
4+ YOE4+ years building and operating resilient backend services; production experience with Go/Java/Python, Terraform, AWS and Microsoft Azure; strong distributed systems and observability skills.
Go, Java, Python, AWS, EC2, S3, Aurora, DynamoDB, Microsoft Azure, Microsoft Azure Virtual Machines, Microsoft Blob Storage, Microsoft Azure SQL, Microsoft Cosmos DB, Terraform, Kafka, Docker, Kubernetes, OpenTelemetry, Claude Code, MTA
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1mo
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Software Engineer L3
United States or California or Colorado or Connecticut or Hawaii or Illinois or Maryland or Massachusetts or Minnesota or New Jersey or New York or Vermont or Washington or Pennsylvania or District of Columbia
$139k-$204k/yr RemoteFull Time
Twilio
TwilioNYSE: TWLO: Cloud communications platform for building customer engagement applications.
4+ YOE4+ years building and operating resilient backend services. Hands-on experience with Go/Java/Python, cloud (AWS and Microsoft Azure), Terraform, distributed systems (Kafka), and IaC; familiarity with observability and high-throughput systems.
Go (Golang), Java, Python, AWS, AWS EC2, AWS S3, AWS Aurora, AWS DynamoDB, Microsoft Azure, Microsoft Virtual Machines, Microsoft Blob Storage, Azure SQL, Microsoft Cosmos DB, Terraform, Kafka, Docker, Kubernetes, OpenTelemetry, Claude Code, mail transfer agent (MTA)
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3w
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Staff Software Development Engineer
Wellesley or Florida or Connecticut or Texas or Rhode Island or Massachusetts
$118k-$284k/yr HybridFull Time
CVS Health
CVS HealthNYSE: CVS: Provides retail pharmacy, health insurance, and pharmacy benefit management services.
5+ YOE2+ Mgmt5+ years full‑stack experience with strong UI (React/Angular) and backend skills, production coding in Python/Java/TypeScript/JavaScript, microservices, CI/CD, containerization, 2+ years LLM and GCP experience, and squad leadership.
React, Angular, Python, Java, TypeScript, JavaScript, GCP, BigTable, Spanner, GKE, Cloud Functions, CI/CD, LLM, LangChain, LlamaIndex, Vertex AI, OpenAI APIs, HuggingFace, GIT, Bitbucket, Artifactory, Jenkins
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2w
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Principal Software Engineer - AI
Woodland Hills or Los Angeles or Alabama or Arizona or California or Colorado or Connecticut or Florida or Georgia or Illinois or Indiana or Kentucky or Massachusetts or Michigan or North Carolina or New Jersey or Nevada or New York or Ohio or Pennsylvania or South Carolina or Texas or Utah or Virginia
$200k-$230k/yr HybridFull Time
Convoso
Convoso: AI-powered contact center platform for outbound sales teams.
10+ YOE10+ years software engineering experience, 5+ years backend work in Python or PHP, expertise building LLM-based AI agent systems, production LLM API integration, MySQL proficiency, and automated testing for AI workflows.
LLM, OpenAI, Claude, GitHub Copilot, MySQL, Python, Django, Flask, PHP, Symfony, Laravel, React
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1mo
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Senior Software Engineer
San Francisco or Knoxville or New York City or Arizona or California or Colorado or Connecticut or Florida or Georgia or Illinois or Louisiana or Massachusetts or Minnesota or North Carolina or New Jersey or Nevada or New York or Ohio or Pennsylvania or South Carolina or Tennessee or Texas or Washington or Virginia or District of Columbia
$150k-$224k/yr RemoteFull Time
Verana Health
Verana Health: Curates real-world clinical data to accelerate medical research and insights.
5+ YOE5+ years backend development with Java and Spring Boot, experience with AWS, Docker, Kubernetes, CI/CD, TDD/JUnit, REST/microservices, observability (Datadog, CloudWatch, OpenTelemetry), mentoring skills, and experience with RDBMS, Elasticsearch and NoSQL.
Java, Spring Boot, AWS, GHA, Jenkins, Docker, Kubernetes, JUnit, TDD, REST, OAuth 2.0, OWASP, Elasticsearch, NoSQL, Datadog, CloudWatch, OpenTelemetry, React, WebSockets, Python, Kafka, SQS, CI/CD
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3w
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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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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 Engineer, ERP Platforms (Integration & Reporting)
Alabama or Arizona or Colorado or Connecticut or Florida or Georgia or Idaho or Illinois or Indiana or Iowa or Kentucky or Louisiana or Maryland or Massachusetts or Michigan or Minnesota or Missouri or Montana or Nebraska or Nevada or New Jersey or New Mexico or New York or North Carolina or Ohio or Oklahoma or Pennsylvania or Rhode Island or South Carolina or Tennessee or Texas or Utah or Vermont or Virginia or Wisconsin
$110k-$130k/yr RemoteFull Time
Vultr
Vultr: Global cloud infrastructure and bare metal server hosting provider.
5+ YOE5+ years backend or data engineering experience, built financial reporting and ETL pipelines, strong API design, PHP/Python/SQL experience, and experience with data warehouses.
administer, Snowflake, BigQuery, Redshift, PHP, Python, SQL, JIRA
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3w
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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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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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3w
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Senior Software Engineer, Ontology & Reasoning Systems (819)
Connecticut or New York
$238k-$267k/yr OnsiteFull Time
Protegrity
Protegrity: Provides data-centric security and tokenization software for enterprises.
5+ YOE5+ years building backend systems; strong foundation in logic, discrete math and graph theory; experience with rule-based reasoning, knowledge graphs, LLM-powered pipelines, and production-grade engineering.
Python, Go, Java, Scala, Rust, LLMs, Datalog, Answer Set Programming, Prolog, SMT solvers, RAG, RDF, SPARQL, Neo4j, OWL, SHACL, CSP, vector search, property graphs
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2w
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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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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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