Python Developer Jobs in Branford, CT, US

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Data Engineer, Data & Analytics

Wilton, Connecticut, United States

OnsiteFull Time

Louis Dreyfus Company: Global merchant and processor of agricultural and food goods.

2+ YOE2+ years in data engineering; SQL expert; Python (Pandas, NumPy, PySpark); cloud data platforms (Azure preferred; AWS/GCP ok); data orchestration tools (Azure Data Factory; Airflow, Prefect, Dagster); CI/CD; data modeling; ETL/ELT; strong data governance.

Python, SQL, Pandas, NumPy, PySpark, Plotly, Matplotlib, Azure, AWS, GCP, Azure Data Factory, Airflow, Prefect, Dagster, Git, CI/CD

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Systems Engineer

Groton, Connecticut, United States

$90k-$100k/yr OnsiteFull Time

General Dynamics Mission SystemsNYSE: GD: Engineers secure communication and mission-critical defense technology systems.

1+ YOEBachelor's in CS/IT/Systems Engineering or related field; 1 year experience or Master's; Secret clearance preferred; US citizenship required.

Kubernetes, Docker, Python, Bash, PowerShell, Git, Jenkins, Ansible, SQL

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Data Engineer

Greenwich, Connecticut, United States

OnsiteFull Time

W. R. BerkleyNYSE: WRB: Provides commercial property, casualty, and specialty insurance and reinsurance.

4+ YOEData Engineer with strong engineering, coding, and problem-solving skills to design, build, and operate data platforms that support actuaries, analytics, modeling, and AI-enabled workflows.

Python, SQL, PySpark, Databricks, Spark, Snowflake

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Sr Principal Software Engineer - Full Stack (Ridgefield, CT, United States, Connecticut)

Ridgefield, Connecticut, United States

$140k-$222k/yr OnsiteFull Time

Boehringer Ingelheim: Researches and manufactures pharmaceuticals for human and animal health.

9+ YOESenior full-stack engineer with extensive frontend and backend experience, OpenShift deployments, and agile practices.

React, Vite, React Native, Swift, Kotlin, Python, TypeScript, Go, REST, OpenShift, Jenkins, Docker, Kubernetes, Copilot, Cursor

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Optics Manufacturing Engineer (Middlefield, CT, US, 06455)

Middlefield, Connecticut, United States

OnsiteFull Time

AMETEKNYSE: AME: Manufacturer of electronic instruments and electromechanical devices.

3+ YOEBachelor's in mechanical engineering; 3-5 years in mechanical design and optics manufacturing; SOLIDWORKS; GD&T; data analysis (Matlab/MathCad); Python/ Matlab; optics manufacturing like polishing, CNC, MRF; optical assembly and metrology.

SOLIDWORKS, Matlab, Python, Geometric Dimensioning and Tolerancing, Interferometry, CMM, MRF, Polishing, CNC

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1mo

Lead SIEM Engineer

Bridgeport, Connecticut, United States

$142k-$237k/yr HybridFull Time

M&T BankNYSE: MTB: Provides retail, commercial, and wealth management banking services.

5+ YOELead SIEM engineer with 5+ years in SIEM, design/implementation, use cases, mentoring.

Splunk, IBM QRadar, Sumo Logic, Securonix, Python, PowerShell

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AI Engineer (IT)

Melville, New York, United States

$145k-$155k/yr RemoteFull Time

Leviton: Manufactures electrical wiring devices and networking infrastructure for buildings.

AI, data management, and Dynamics 365 experience; Power Platform; data governance; automation and analytics; cross-functional collaboration.

Microsoft Dynamics 365, Power Platform, SQL, Python, CoPilot Studio

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FLS Production Engineer – Mechatronics & Test Competency (CWW – N2)

Wilton, Connecticut, United States

OnsiteFull Time

ASMLNASDAQ: ASML: Manufactures lithography systems used to print patterns on wafers.

0+ YOEBachelor's in Mechatronics or Electrical/Mechanical Engineering; 0+ years in engineering; reading mechanical/electrical drawings; MATLAB/LabVIEW/Python; cleanroom experience; capable of cross-disciplinary work.

MATLAB, LabVIEW, Python, Unix/Linux, NX, Teamcenter, SAP

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Lead Application Engineer

Stamford, Connecticut, United States

OnsiteFull Time

International Wire Group: Manufacturer of copper and copper-alloy wire products.

5+ YOESenior-level IT/engineering role overseeing enterprise applications, ERP modernization, system integrations, and cloud transformations.

TypeScript, JavaScript, Node.js, React, SQL Server, PostgreSQL, Azure, SAP, Oracle, Microsoft Dynamics, Java, .NET, Python

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1mo

Azure IoT Engineer

Groton, Connecticut, United States

$102k-$154k/yr HybridFull Time

Applied Information Sciences: Provides cloud transformation and software engineering services to enterprises.

5+ YOEFive years of hands-on Azure IoT experience; degree in a related field; on-site collaboration in industrial environments; strong IoT, edge, security, and data pipelines.

Azure IoT Hub, Azure IoT Edge, Azure Digital Twins, Docker, Python, C#, Node.js, TLS, Certificate-based authentication, Azure Event Hub, Azure Data Explorer, Azure Data Lake, Azure Stream Analytics

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Principal Security Engineer

Stamford, Connecticut, United States

HybridFull Time

Crane CompanyNYSE: CR: Manufactures engineered components for aerospace and industrial process markets.

10+ YOE10+ years in security engineering or secure architecture; enterprise-scale security design and integration; cloud and on‑prem security; automation and API integrations; strong communication.

Python, PowerShell, REST APIs, Azure, AWS, OCI, Scripting, Infrastructure as Code

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Senior Bioprocess Engineer

New Haven, Connecticut, United States

$140k-$165k/yr OnsiteFull Time

Bexorg: Developing whole-brain perfusion platforms for neurodegenerative drug discovery.

Extensive hands-on bioprocess/ perfusion systems; lead end-to-end projects; strong control systems, hardware, and software integration.

LabVIEW, PLC/SCADA, Python, ROS-2

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1mo

Site Reliability Engineer

Greenwich, Connecticut, United States

$120k-$150k/yr HybridFull Time

Piper SandlerNYSE: PIPR: Provides investment banking and institutional financial services.

Bachelor's or equivalent experience; Linux/Windows basics; networking basics; scripting; cloud familiarity; strong problem-solving and communication.

Datadog, Prometheus, Grafana, Terraform, Ansible, Docker, Kubernetes, Azure, AWS, GCP, GitOps, Python, Bash, PowerShell

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Azure Data Engineer

West Hartford, Connecticut, United States

RemoteFull Time

LegrandEuronext Paris: LR: Manufacturer of electrical and digital building infrastructure solutions.

8+ YOE8+ years in data engineering/analytics; 5+ years Azure; 3+ years Azure Fabric/lakehouse; ETL/ELT, data modeling, governance, and modern data architectures.

Azure Data Lake Storage, Azure Data Factory, Azure Fabric, Azure SQL Database/Data Warehouse, Logic Apps, Service Bus, Event Grid, Power BI, Purview, Azure DevOps, GitHub, Terraform, Databricks, Python, PySpark, Spark SQL, SQL, ARM templates, Bicep

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2mo

Systems Support Engineer

Woodbury, New York, United States

$90k-$140k/yr HybridFull Time

Clever Devices: Develops technology solutions and systems for public transportation agencies.

5+ YOE5+ years in technical support or engineering; bachelor’s in Computer Science or Engineering; strong communication; SQL; TCP/IP; server hardware; travel required (local, national, international).

Jira, Confluence, Splunk, SQL Server Management Studio, SQL Databases, Server Hardware, Microsoft Server Operating Systems, TCP/IP, PowerShell, Java, Apache Tomcat, MSSQL, HTML, JSON, XML, C#, C++, Python, Excel, Word, Visio, PPT, Teams, Outlook

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Systems Support Engineer

Woodbury or New Jersey

$90k-$140k/yr OnsiteFull Time

Clever Devices: Develops intelligent transportation systems for public transit agencies.

5+ YOE5+ years in technical support/engineering; bachelor’s in Computer Science/Engineering; strong customer service, triage, troubleshooting; proficient in SQL, server tech, and networking.

Jira, Confluence, Splunk, SQL Server Management Studio, SQL Databases, TCP/IP, Windows Server, PowerShell, C#, C++, Python, HTML, JSON, XML

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2mo

AI / ML Engineer

Chattanooga or Norwalk

OnsiteFull Time

HomeServe USA: Provides residential repair service plans and emergency home repairs.

3+ YOEBachelor's degree preferred; 3-5 years in innovation management or tech incubation; strong analytical, problem-solving, and communication; experience with generative AI; project management skills.

Python, Node.js, Java, Cloud Services

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2mo

Client Engineer III (MedInsight)

Seattle or Appleton or Atlanta or Boise or Wakefield or Chicago or Dallas or Hartford or Omaha or San Francisco or Portland or Portland

$85k-$162k/yr RemoteFull Time

Milliman: Provides actuarial consulting and risk management solutions globally.

5+ YOE5+ years in analytics/data engineering with client-facing delivery; expert SQL; dimensional modeling; strong software engineering practices; able to lead data-driven implementations.

SQL, Git, CI/CD, ETL, Data Modeling, Python, Cloud

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Sr. Security Systems Engineer

Windsor, Connecticut, United States

$110k-$120k/yr OnsiteFull Time

Voya FinancialNYSE: VOYA: Provides retirement, investment, and insurance products and services.

5+ YOE5+ years in enterprise IT; 3-5 years with Cloudflare WAF; Bachelor's degree or equivalent; experience with security, IAM, LDAP, SSO; scripting; Unix/Windows/VMware.

Cloudflare WAF, SIEM, IAM, LDAP, SAML, OAuth, JWT, REST, SOAP, Unix, Windows, VMware, Bash, Python, JavaScript, Git

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BAE Systems - Reliability Engineer - C4ISR Systems

Greenlawn, New York, United States

$87k-$147k/yr OnsiteFull Time

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

Analyze failures, perform FRACAS, analyze reliability data, improve processes, document results.

FRACAS, Weibull, MTBF, Minitab, JMP, Python, Excel, PowerPoint, Word

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Tier 3 Support Engineer

Eagle or Nashville or Salt Lake City or Farmington

HybridFull Time

The Pennant GroupNASDAQ: PNTG: Provides home health, hospice, and senior living services across America.

4+ YOE4+ years IT support with Tier 2/3 experience; strong Windows/macOS/Linux, networking, virtualization, cloud, scripting; ITIL and cloud certifications preferred; excellent communication and problem-solving.

Windows, macOS, Linux, VMware, Hyper-V, Azure, AWS, PowerShell, Python, Bash, Active Directory, Azure AD, MFA, Endpoint Management, Patching, Monitoring Tools

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AI/ML Development Analyst

Norwalk, Connecticut, United States

$100k-$150k/yr OnsiteFull Time

Commonfund: Provides investment management services to institutional nonprofit organizations.

1+ YOEBachelor’s or Master’s in Mathematics, Data Science, CS with AI, or related field; strong Python; 1+ year ML/AI development; experience with Agentic AI; SQL; web/API development; ML frameworks; analytical and collaborative skills.

Python, SQL, REST APIs, Web development (Svelte, FastAPI), C#, Git, Docker, AWS, Azure, GCP, TensorFlow, PyTorch, Scikit-learn, Data visualization tools, APIs and web-based interfaces

2mo

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2mo

Lead Engineer - Advanced Data Science for Aerospace Systems

Newport News or Arlington or St Paul or Ronkonkoma

$100k-$155k/yr HybridFull Time

North Wind: Provides research, development, and testing for hypersonic aerospace systems.

7+ YOELead engineer with 7–10 years in aerospace engineering, AI/ML, CFD/FEA, and team leadership.

CFD, FEA, Machine Learning, AI, Python, MATLAB

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2mo

Information Protection Advisor

St. Louis or Bloomfield or Philadelphia

OnsiteFull Time

The Cigna GroupNYSE: CI: Provides global health insurance and pharmacy benefit management services.

7+ YOE7+ years in application development; Node.js/JavaScript, Python, RESTful APIs, Oracle, MySQL; Linux, shell scripting; architecture discussions; strong problem solving and collaboration.

Node.js, JavaScript, Python, REST, Oracle, MySQL, Linux, Shell scripting, Docker, Jenkins, Okta

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AI Engineering Summer Intern Stamford, CT

Stamford, Connecticut, United States

OnsiteInternship

Information Services GroupNASDAQ: III: Provides technology research and advisory services for digital transformation.

Strong Python skills; experience with LLM APIs and prompt engineering; cloud AI familiarity; data engineering basics; Git/GitHub; AI development tools; prior AI project or internship in business settings.

Python, LLM APIs, Azure, Git, GitHub, ChatGPT, Claude, Gemini, Codex

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System Analyst II

Stonington, Connecticut, United States

OnsiteFull Time

Zachry Group: Provides engineering, construction, and maintenance for industrial facilities.

5+ YOEBachelor's degree in computer science/IS/engineering or related field; 5+ years as individual contributor; knowledge of software development trends; strong communication; experience with MySQL, MariaDB, MS SQL Server, C++, Python, JavaScript, PHP, Visual Basic, Git.

MySQL, MariaDB, MS SQL Server, C++, Python, JavaScript, PHP, Visual Basic, Git

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2mo

Partner, Head of Offer & Commercial Development

Seattle or San Francisco or Chicago or Cincinnati or Troy or Washington or Norwalk or New York

HybridFull Time

IpsosEuronext Paris: IPS: Provides global survey-based market research and public opinion polling.

10+ YOE10+ years in data analytics or consulting; strong commercial acumen; leadership experience; expertise in data integration and analytics; proficiency in Python, R, SQL, Tableau; cloud platform familiarity

Python, R, SQL, Tableau, AWS, Azure, GCP

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Software Development Manager

Shelton, Connecticut, United States

RemoteFull Time

TOMRAOslo Stock Exchange: TOM: Provides sensor-based sorting and collection solutions for resource optimization.

8+ YOE3+ MgmtBachelor’s in Computer Science or related field; 8 years in software product development and management; 3 years leading software teams; strong skills in cloud, databases, and full stack technologies.

Azure, Kubernetes, C#, Angular, Node JS, React JS, Python, SQL, ERP integration

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Lead Agentic AI Designer

Purchase, New York, United States

$150k-$254k/yr OnsiteFull Time

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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Postdoctoral Associate | Metabolomics and Exposomics | Li Lab

Farmington, Connecticut, United States

$66k-$76k/yr OnsiteFull Time

The Jackson Laboratory: Conducts genomic research and produces specialized laboratory mouse models.

0+ YOEPhD in bioinformatics, chemistry or biology; Python; publications; strong communication; metabolomics/exposomics a plus.

Python

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Kubernetes Platform Specialist (AWS)

Hartford or Saint Paul

$49k-$105k/yr HybridFull Time

CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.

8+ YOE8-10 years in cloud engineering/DevOps, AWS (EKS, EC2, IAM, VPC, Lambda, S3, RDS, CloudFormation, CloudWatch, Route 53), Kubernetes/EKS, Docker, Python and shell scripting, Jenkins CI/CD, IaC (CloudFormation/Terraform/AWS CDK), security/compliance, architecture and automation.

AWS, EC2, EKS, IAM, VPC, Lambda, S3, RDS, CloudFormation, CloudWatch, Route 53, Kubernetes, Docker, Python, Bash, Go, TypeScript, Java, Jenkins, Terraform, AWS CDK, Terraform, Git, CI/CD, Infrastructure as Code, RBAC, network_policies, Helm

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Internal SDLC Audit & SOC2 - Assistant Vice President

New York City or Greenwich

$130k-$155k/yr HybridFull Time

iCapital: A global fintech platform for alternative investment marketplace access.

5+ YOE5+ years in technology operations; AWS, Kubernetes; Python, Jira, GitLab; SOC 2 audits; strong problem-solving and communication.

AWS, Kubernetes, Python, Git, GitLab, Jira, Vanta, SQL, MongoDB

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Senior Research Data Support Analyst, YSE

New Haven, Connecticut, United States

$90k-$166k/yr RemotePart Time, Temporary

Yale University: Provides higher education and conducts global academic research.

7+ YOEBachelor's degree and 7+ years in academic/research data support; strong Python, SQL, Linux; data pipelines, HPC, cloud; ML/AI; collaboration and mentoring.

Python, SQL, Linux, HPC, Cloud (AWS/Azure/Google Cloud), Git, Docker, Apptainer, Parquet, Arrow

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Postdoctoral Research Associate

Storrs, Connecticut, United States

OnsiteFull Time

University of Connecticut: Connecticut's flagship public research university providing higher education.

PhD in statistics, biostatistics, computer science, data science, information science, or related field; strong data science skills; Python or R; effective communication; interdisciplinary collaboration.

Python, R, Machine learning libraries, Statistical software

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Postdoctoral Fellow: Generative AI for Protein Engineering

Groton or Berlin

$65k-$108k/yr HybridFull Time

PfizerNYSE: PFE: Develops and manufactures vaccines and medicines for global healthcare

0+ YOEPhD in computational/chemical/biological sciences or related field; less than 2 years post-degree experience; 2 letters of recommendation; strong publications; Python, ML, protein design experience.

Python, PyTorch, RDKit, NumPy, SciPy, Pandas

22h

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22h

Research Scientist (Hartford, CT, US)

Hartford or New York City or San Francisco

$138k-$203k/yr OnsiteFull Time

Munich ReFrankfurt Stock Exchange: MUV2: Global provider of reinsurance, insurance, and risk management solutions.

5+ YOEPhD in Statistics, Computer Science, Data Science or related field; 5+ years data science experience in startups or academia; strong ML, GenAI, uncertainty quantification; Python or similar; English fluency; willingness to travel.

Python

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Credit Model Development Quantitative Analyst II - Small Business and Home Secured (Hybrid - see potential locations in job description)

Buffalo or Bridgeport or Wilmington or Baltimore or Washington or New York

$72k-$119k/yr HybridFull Time

M&T BankNYSE: MTB: Provides retail, commercial, and institutional banking and trust services.

1+ YOEBachelor’s degree plus 1 year quantitative modeling experience or 5 years education/work; strong Python; SQL; SAS/R; model development in credit risk.

Python, SQL, SAS, R

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Senior Scientist - Precision Medicine

Armonk, New York, United States

$110k-$179k/yr OnsiteFull Time

RegeneronNasdaq: REGN: Discovers and manufactures medicines for serious diseases.

0+ YOEPhD in molecular biology, bioinformatics, computational biology, or related discipline; 0-2 post-doctoral or industry experience; proficiency in statistical modeling, machine learning, multi-omics data integration (R, Python); cloud experience (AWS, GCP, Azure); strong communication and collaboration skills.

Python, R, AWS, GCP, Azure, Claude Code

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Research Scientist / Senior Research Scientist

Stony Brook, New York, United States

$74k-$117k/yr OnsiteFull Time

Stony Brook University: Provides public higher education, medical research, and healthcare services.

3+ YOEPh.D. (or foreign equivalent) in physical sciences, computer science, computational science, applied mathematics, data science, engineering, or related field; 3 years (for Research Scientist) or 5+ years (for Senior Research Scientist) of full-time research experience; Linux HPC experience; MPI/OpenMP/CUDA; Python/C/C++; strong communication and co...

Python, C, C++, Fortran, MPI, OpenMP, CUDA, Linux, GPU computing, Slurm