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303 senior python developer jobs at 136 companies in Danbury, CT

PromotedHiringCafe
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
PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
1mo
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GenAI Python Systems Engineer –Senior Manager
Chicago or Raleigh or Charlotte or Cincinnati or Cleveland or Columbia or Columbus or Dallas or Baltimore or Richmond or Rosemont or Sacramento or Boston or St. Louis or Salt Lake City or San Antonio or San Diego or San Francisco or Silicon Valley or Seattle or Spartanburg or Albany or Stamford or Tampa or Atlanta or Toledo or Austin or Tulsa or Washington or Denver or Des Moines or Detroit or Buffalo or Florham Park or Kansas City or Las Vegas or Little Rock or Los Angeles or Louisville or Birmingham or Fayetteville or Miami or Milwaukee or Minneapolis or Nashville or New Orleans or New York or Oklahoma City or Philadelphia or Phoenix or Pittsburgh or Portland
$124k-$280k/yr HybridFull Time
PwC
PwC: Providing audit, tax, and management consulting services to businesses.
8+ YOESenior Manager level with 8+ years of experience; proficient in Python, SQL, FastAPI; cloud certifications a plus; willing to travel up to 80%; Bachelor's degree required.
Python, SQL, FastAPI, Cloud Platforms, LLM techniques, Data Warehousing, Data Lakes, IAM
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2w
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Senior Software Developer - Python
Chicago or Greenwich
$200k-$250k/yr HybridFull Time
Interactive Brokers
Interactive BrokersNASDAQ: IBKR: Automated global electronic brokerage and trading services provider.
5+ YOE5+ years software engineering experience (Python/C++/Java), 3+ years Python as primary language, experience with Polars/Pandas/NumPy, Linux (1-3 yrs), SQL and large codebases; Bachelor's degree in CS or related.
Python, C++, Java, Polars, Pandas, NumPy, Linux, SQL
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2mo
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Senior Software Engineer - Compliance Technology
New York or Greenwich
$150k-$235k/yr OnsiteFull Time
Balyasny Asset Management
Balyasny Asset Management: Global multi-strategy investment firm managing diverse alternative asset classes.
10+ YOE10+ years software development; deep expertise in C#; production SQL queries; React/CSS; Python; AWS; Agile/SCRUM; DevOps (CI/CD, IaC); AI-assisted development tools; finance industry exposure a plus.
C#, SQL, React, CSS, Python, AWS, CI/CD, Infrastructure as Code, AI-assisted development tools
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2mo
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Senior Software Engineer - Compliance Technology
Greenwich or New York
$150k-$235k/yr HybridFull Time
Balyasny Asset Management
Balyasny Asset Management: Global multi-strategy investment firm managing diverse financial assets.
10+ YOE10+ years software development; expert in C#; SQL; React; CSS; Python; AWS; Agile/SCRUM; DevOps; AI-assisted tools; finance experience a plus.
C#, SQL, React, CSS, Python, AWS, CI/CD, infrastructure-as-code, AI tools
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3mo
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Senior Software Engineer, Infrastructure & Developer Tooling
New York City or Glen Cove
$170k-$220k/yr HybridFull Time
Standard Bots
Standard Bots: Develops and manufactures AI-powered robotic arms for industrial automation.
7+ YOE1+ Mgmt7+ years software engineering; leadership in DevOps/infrastructure; strong CI/CD, distributed systems, and tooling; cloud platforms (AWS/GCP/Azure) and Kubernetes; security best practices; observability and monitoring; Python/NodeJS/TypeScript; robotics interest a plus.
Python, NodeJS, TypeScript, React, Docker, Kubernetes, Terraform, Postgres, Cloudflare
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1mo
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Senior AI Engineer
Plano or Purchase or Chicago
$111k-$185k/yr HybridFull Time
PepsiCo
PepsiCoNASDAQ: PEP: Global manufacturer and distributor of snacks and beverages.
8+ YOESenior AI Engineer with 8+ years in software lifecycle, ML/AI, and production-grade agent systems; strong Python/Java, distributed systems, and ML Ops experience.
Python, Java, FastAPI, asyncio, Pydantic, LangChain, LangGraph, CrewAI, MLflow, Arise, Docker, Kubernetes, Ray, Kafka, gRPC, Redis, Prometheus, OpenTelemetry, Grafana, Temporal, MEM0, Temporal Agentic Memory, Graph and Vector DBs
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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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2d
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Senior Software Developer
White Plains, New York, United States
$160k-$180k/yr HybridFull Time
Skadden
Skadden: Global law firm providing legal advisory and litigation services.
5+ YOEBachelor's in Computer Science or related, 5+ years enterprise application development, experience with .NET, React, Python, C#, TypeScript, CI/CD and AI-enabled services; strong architecture and communication skills.
.NET, React, Python, C#, ReactJS, TypeScript
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2mo
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Signal Processing Developer – American Football (C++/Python)
East Rutherford, New Jersey, United States
RemoteFull Time
Trackman
Trackman: Developer of advanced radar-based sports performance tracking systems.
3+ YOEMSc or PhD in electrical engineering, computer science, or applied math; strong signal processing; proficient in C++ and Python; Linux and Git; several years of experience; US-based with travel.
C++, Python, Linux, Git
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2mo
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Senior Firmware Engineer - Streaming Audio
Plano or Rockleigh
$108k-$174k/yr OnsiteFull Time
Crestron
Crestron: Designs and manufactures advanced automation and control systems.
6+ YOESenior firmware engineer with 6-8 years exp in C/C++, Node.js, Python; embedded/Linux; DSP; networking; system integration; SDLC ownership.
C, C++, Node.js, Python, Linux
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2mo
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Senior AI Engineer
Yonkers, New York, United States
$184k-$230k/yr OnsiteFull Time
Montefiore Medical Center
Montefiore Medical Center: Academic medical center providing healthcare and clinical research services
10+ YOELead design and maintenance of ML/AI platforms; 10+ years in ML/AI; Snowflake, Python; healthcare data experience.
Snowflake, Python, LLMs, NLP, ML libraries, H2O
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2mo
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Senior Data Engineer
Poughkeepsie, New York, United States
$100k-$126k/yr OnsiteFull Time
Hudson Valley Credit Union
Hudson Valley Credit Union: Provides personal and business banking services to members.
5+ YOEFive+ years data engineering experience; Databricks and Azure data stack expertise; Python; strong data warehousing/lakehouse skills.
Databricks, Spark, Delta Lake, Azure Data Lake Storage Gen2, Databricks Workflows, CI/CD, MLOps, Python
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2mo
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Senior Full Stack Developer
Milford, Connecticut, United States
OnsiteFull Time
Total Mortgage
Total Mortgage: Provides residential mortgage lending and home refinancing services.
5+ YOE5+ years full-stack development experience; bachelor\u0002s degree or equivalent; strong AWS, Node.js, PHP, Python, REST API, relational and NoSQL database, front-end (HTML5/CSS3/JavaScript), Git and CI/CD skills; strong communication.
AWS, EC2, S3, Lambda, RDS, CloudFormation, Node.js, Express.js, npm, PHP, Laravel, Symfony, Python, MySQL, PostgreSQL, NoSQL, HTML5, CSS3, JavaScript, Git, CI/CD, Docker, Kubernetes, Salesforce Apex
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2mo
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Senior AI/ML 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.
5+ YOE5+ years in AI/ML development; strong Python; experience with LLMs, RAG, and AI deployment on AWS; knowledge of LangChain, Pydantic; experience with TensorFlow/PyTorch; ethical AI practices.
Python, TensorFlow, PyTorch, Scikit-learn, Apache Spark, Apache NiFi, Airflow, AWS, Lambda, Docker, Kubernetes, SQL, NoSQL, Data Lakes, Data Warehouses, LangChain, Pydantic, Hugging Face, TensorFlow, PyTorch, AWS Lambda
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1w
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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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Senior Embedded Software Engineer
Melville, New York, United States
$130k-$160k/yr HybridFull Time
Motorola Solutions
Motorola SolutionsNYSE: MSI: Provides mission-critical communications and public safety technology.
7+ YOE7+ years embedded C/C++ experience; Linux/ARM; OS concepts; TCP/UDP; CI/CD; Git; LabVIEW/Visual Studio optional.
C, C++, C#, Python, Linux, LabVIEW, Visual Studio, Git, CMake, Docker, TCP/UDP
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1w
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Senior Software Engineer
Glendale or Bristol
$149k-$199k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces movies, operates theme parks, and provides streaming services.
5+ YOE5+ years industry experience; proficiency in Java/Kotlin/Python/JavaScript, microservices, REST APIs, AWS (S3,Lambda,EC2), databases, Kafka; BS in CS preferred.
Java, Kotlin, Python, JavaScript, AWS, S3, Lambda, EC2, SQL, MongoDB, OpenSearch, Apache Kafka
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2mo
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Full Stack Engineer, Senior
Oakland or Seattle or WA or OH or CA or Long Beach or AZ or CO or CT or FL or GA or MD or MN or NV or OR or El Dorado Hills or Lodi or Rancho Cordova or Redding or San Diego or Woodland Hills or AL or IL or VA or WI or TX or NY
$103k-$174k/yr HybridFull Time
Ascendiun
Ascendiun: Nonprofit parent overseeing health insurance and clinical service organizations.
5+ YOE5+ years full stack development; BA/BS or equivalent IT experience; React/Vue/Angular; .NET/Java/Node.js/Python APIs; SQL/NoSQL; Azure preferred; Docker; IaC; CI/CD; AI tools; healthcare experience preferred.
React, Vue, Angular, JavaScript, TypeScript, .NET, Java, Node.js, Python, MS SQL Server, Oracle, NoSQL, REST, Azure, AWS, GCP, Docker, Kubernetes, Ansible, Bicep, ARM, Terraform, GitHub, GitLab, Bitbucket, Git
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2w
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Senior Backend Software Developer – IBM Quantum
Rochester or Yorktown Heights or San Jose or Austin or Cambridge
$131k-$226k/yr OnsiteFull Time
IBM
IBMNew York Stock Exchange: IBM: Global technology providing enterprise software, cloud, and consulting.
Experienced backend developer with proficiency in TypeScript/JavaScript, Golang or Python; Kubernetes/Docker; distributed systems, microservices, REST/gRPC, SQL databases (PostgreSQL); strong communication and leadership skills.
TypeScript, JavaScript, Golang, Python, Kubernetes, Docker, PostgreSQL, Grafana, Sysdig, Prometheus, slurm, LSF
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1w
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Senior Software Engineer
Glendale or Bristol
$149k-$199k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces media content and operates global theme parks.
5+ YOE5+ years industry experience; proficiency in Java/Kotlin/Python/JavaScript; experience with microservices, REST APIs, AWS (S3, Lambda, EC2), SQL/MongoDB/OpenSearch, Apache Kafka, testing and code review.
Java, Kotlin, Python, JavaScript, AWS, S3, Lambda, EC2, SQL, MongoDB, OpenSearch, Apache Kafka
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