57 python and java developer jobs at 27 companies in Norwalk, CT

1mo
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Testing and Automation Engineer
Shelton, Connecticut, United States
$103k-$128k/yr OnsiteFull Time
Subway
Subway: Global provider of franchised quick-service sandwiches and salads.
5+ YOE5+ years in software testing/automation, proficiency with automation frameworks (Selenium, Cypress, Playwright, REST-assured, Postman), ability to write/debug test code (Java, JavaScript/TypeScript, Python, C#), CI/CD and API knowledge, AI-assisted testing experience.
Selenium, Cypress, Playwright, REST-assured, Postman, Azure DevOps, Java, JavaScript, TypeScript, Python, C#
1mo
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Senior Developer - Research and Development
Tarrytown, New York, United States
$94k-$153k/yr HybridFull Time
Regeneron
RegeneronNasdaq: REGN: Discovers and manufactures medicines for serious diseases.
3+ YOEBachelor's in CS/Bioinformatics/Life Sciences, 3+ years software development supporting life‑sciences R&D or lab informatics, Java and Python proficiency, LIMS/ELN experience (Sapio/Benchling/Dotmatics), AI/GenAI experience.
Sapio, Benchling, Dotmatics, Java, Python, SQL, pandas, NumPy, LangChain, LlamaIndex, Claude Code, Claude, Anthropic APIs, OpenAI APIs, Docker, Kubernetes, Jenkins, GitHub Actions, GitHub Copilot, TetraScience, Spotfire, Tableau, Power BI, Jupyter
2mo
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Credit and Systematic Trading Front End Developer, Vice President
New York, New York, United States
$142k-$213k/yr HybridFull Time
Citi
CitiNYSE: C: Providing global banking, investment, and wealth management services.
6+ YOE6–10 years in application development with 5+ years front-end experience; strong React/HTML5; Python/Java backend; experience in trading environments; micro-front ends and RESTful APIs; Agile/Waterfall; leadership potential.
HTML5, React, Angular, Python, Java, REST, Kafka, Solace, Redis, Elasticsearch, Pinot, Git
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Principal Solutions Developer , Prototyping and Customer Engineering (PACE)
Boston or Austin or Arlington or Seattle or New York or Herndon or Chicago or San Francisco or Dallas
$183k-$284k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
15+ YOE15+ years technical experience, bachelor's in CS/engineering/math (or equivalent), expertise in cloud architecture and CXO engagement, experience developing end-to-end solutions, programming with Python/JavaScript/Go/.Net/Java, EMR of distributed systems.
Python, JavaScript, Go, .Net, Java, AWS
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Partner Engineer, Generative AI Integration and Distribution
Menlo Park or Seattle or Burlingame or New York City
$149k-$210k/yr OnsiteFull Time
Meta
MetaNASDAQ: META: Develops social networking platforms and virtual reality technologies.
5+ YOEBachelor's in CS/CE or equivalent, 5+ years in software/AI/ML, development experience in at least one of: Python, Java, Go, Rust, C, C++, experience with LLMs, cloud technologies, APIs, partner integrations, and project management.
Python, Java, Go, Rust, C, C++, LLMs, LLaMA, GPT, Claude, APIs
1w
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Acceleration Center- Agentic AI and Machine Learning Developer- Senior Associate
New York or Dallas or Tampa or Philadelphia or Florham Park
$77k-$202k/yr OnsiteFull Time
PwC
PwC: Providing audit, tax, and management consulting services to businesses.
2+ YOEBachelor's degree,2+ years experience,proficiency with Python and Java,experience with TensorFlow and Scikit-Learn,knowledge of data integration,data pipelines and NLP,ability to design and deploy scalable AI solutions.
Python, Java, TensorFlow, Scikit-Learn, Databricks, Snowflake, AWS, Google Cloud, Microsoft Azure
3w
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Senior Software and AI Engineer
Livingston or New York or Sunnyvale or San Francisco or Bellevue
$182k-$242k/yr OnsiteFull Time
CoreWeave
CoreWeaveNASDAQ: CRWV: Cloud platform providing GPU-accelerated infrastructure for AI workloads.
3+ YOE3+ years professional programming; full‑stack development with React/TypeScript and backend services in Node.js or Go; experience with GenAI/LLM frameworks (LangChain, ChatGPT API, Glean API); cloud, Kubernetes, and CI/CD familiarity.
Workato, LangChain, LangGraph, ChatGPT agentflow, ChatGPT API, OpenAI API, Gemini agent flow, Glean API, React, TypeScript, Node.js, Go, Python, C++, C#, Java, FastAPI, gRPC, Next, Cursor, Claude, Copilot, ChatGPT Codex, Ray, Kafka, Spark, Kubernetes, AWS, Azure, GCP, Workato, Boomi, ERP, HRIS, DCIM, Data Warehouse
3mo
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Cash and Liquidity Transaction and Reporting Lead Software Developer, VP
Jersey City, New Jersey, United States
$140k-$205k/yr HybridFull Time
Mitsubishi UFJ Financial Group
Mitsubishi UFJ Financial GroupNew York Stock Exchange: MUFG: Global financial group providing diverse banking and investment services.
10+ YOELead software engineer with 10+ years in finance, strong Java/J2EE, microservices, cloud, and data integration.
Java, J2EE, React, Angular, HTML5, CSS, REST, SOAP, MQ, Kafka, OpenShift, AWS, Kubernetes, Docker, Jenkins, Python, Shell, Oracle, SQL, PL/SQL, Terraform
4d
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Senior Staff Software Engineer, AI-Empowered, Fraud and Abuse Security
Sunnyvale or Kirkland or New York City
$262k-$364k/yr OnsiteFull Time
Google
GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.
8+ YOEBachelor's in CS or equivalent,8+ years software development,5+ years designing distributed systems,1+ year AI/ML infrastructure experience,leadership in technical roadmaps,proficiency in Python/Go/C++/Java.
Python, Go, C++, Java, Google Cloud Platform (GCP)
2w
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Senior Lead AI Engineer (SDK's: Gen AI Evaluation and MCP)
McLean or San Francisco or Cambridge or San Jose or New York City
$230k-$286k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.
6+ YOEBachelor's plus 6+ years (or Master's plus 4+ years) developing AI/ML systems; strong programming (Python, Go, Scala, Java); cloud AI deployment experience; leadership and research application skills.
AWS Ultraclusters, Huggingface, VectorDBs, Nemo Guardrails, PyTorch, Python, Go, Scala, Java, C++, C#, Golang, AWS, Google Cloud, Azure
3w
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Principal Software Engineer – Data and Billing QA
Overland Park or New York or Chicago
$111k-$143k/yr OnsiteFull Time
Cboe
CboeBATS: CBOE: Operates global market infrastructure and provides tradable financial products.
Principal-level engineering expertise with AI/agentic tooling, strong Python/Java/C++ skills, Linux, Kafka/Avro/Kudu/Snowflake, CI/CD (Jenkins), SQL and Git; bachelor's degree or equivalent experience.
Claude Code, OpenAI Codex, LangChain, AutoGen, Python, Java, C++, Linux, Kafka, Avro, Kudu, Snowflake, PostgreSQL, MySQL, Oracle, SQL, Jira, Confluence, Git, Jenkins
1mo
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Staff Software Engineer - Enterprise Security and Identity Tooling
Houston or New York City or San Francisco or Seattle or United States
$200k-$250k/yr OnsiteFull Time
Nscale
Nscale: Vertically integrated AI infrastructure provider for high-performance computing.
8+ YOE8+ years software engineering experience; strong backend skills (Python, Go, Java, TypeScript); experience building integrations, APIs, identity and access tooling, workflow automation, and reliable production services.
Python, Go, Java, TypeScript, APIs, webhooks, queues, events, workflow engines, SSO, OAuth/OIDC, SAML, SCIM, RBAC, MFA
1w
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Staff Security Engineer, Product Security and Architecture
Aventura or New York City
$210k-$234k/yr OnsiteFull Time
Compass
CompassNYSE: COMP: Technology-enabled residential real estate brokerage and agent software platform.
3+ YOE3+ years experience administering CI/CD and app security tooling (SAST/DAST/SCA), automation with Python/Bash, product development in Python/JS/TS/Golang/Java, IaC (Terraform), AWS, and applying AI to security processes.
CI/CD, SAST, DAST, SCA, Python, Bash, JavaScript, TypeScript, Golang, Java, Terraform, AWS
4w
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AI-Enabled Infrastructure and Systems Engineer
New York, New York, United States
$162k-$200k/yr HybridFull Time
BlackRock
BlackRockNYSE: BLK: Provides investment management and financial technology services globally.
5+ YOE5+ years infrastructure engineering experience; cloud (AWS/Azure/GCP) and IaC (Terraform/CloudFormation/ARM/Bicep/Ansible) proficiency; scripting (Python/Java/Golang); experience supporting AI/ML workloads and platform engineering.
Terraform, Ansible, CloudFormation, ARM/Bicep, Python, Java, Golang, AWS, Microsoft Azure ML, Microsoft Azure Foundry, AWS Bedrock, Google Vertex
1mo
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EY-Parthenon - Strategy and Execution - Growth Platforms - Software Engineer - Sr Assoc/Consultant (New York, NY, US, 10001-8604)
New York or Atlanta or Boston or Chicago or Dallas or Denver or Detroit or Houston or Los Angeles or McLean or Hoboken or Philadelphia or San Francisco or Seattle
$130k-$185k/yr HybridFull Time
EY
EY: Global firm providing audit, tax, and professional consulting services.
1.5+ YOEBachelor's degree plus ~2 years related experience (or graduate degree plus ~18 months). Experience with backend/full‑stack development (Python, Java, Scala, TypeScript), cloud (AWS/GCP), containerization, IaC, LLM integration, and productionizing AI tooling; strong communication and client‑facing skills.
Python, Java, Scala, TypeScript, AWS, GCP, Microsoft Copilot
3w
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Salesforce and Selenium Automation Engineer
Jersey City, New Jersey, United States
$110k-$125k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
8+ YOE8+ years experience with Salesforce Lightning, Sales/Service Cloud and FSC; hands-on Selenium WebDriver automation using Java or Python; Git, Azure DevOps, CI/CD; REST/SOAP integration testing; strong communication and critical thinking.
Selenium, WebDriver, TestNG, JUnit, Cucumber, Java, Python, Git, Azure DevOps, CI/CD, REST, SOAP, Jenkins, ETL, Salesforce, Lightning Experience, Sales Cloud, Service Cloud, FSC
3w
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Data Engineer I-Pathology Molecular and Cell Based Medicine
New York, New York, United States
$85k-$109k/yr OnsiteFull Time
Mount Sinai Health System
Mount Sinai Health System: Provides comprehensive hospital, clinical, and medical research services.
2+ YOEBachelor's in Computer Science or related; 2+ years development experience (Linux preferred); strong SQL/NoSQL knowledge; proficiency in 2+ languages (Scala, Python, Java); experience with REST, microservices, big-data stacks, cloud (Azure/AWS).
LINUX, Oracle, PostgreSQL, MySQL, Mongo DB, Scala, Python, Java, Node JS, Django, PHP, Hadoop, Spark, Kafka, JIRA, Azure, AWS
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Senior Software Engineer - Oracle and Mobile Platforms
New York, New York, United States
$127k-$150k/yr HybridFull Time
Metropolitan Transportation Authority
Metropolitan Transportation Authority: Operates public transportation systems in the New York region.
5+ YOEBachelor's degree and 5+ years relevant experience; at least one technical certification; experience building Ionic/Angular cross-platform mobile apps, PL/SQL expertise, Oracle/APEX familiarity, full lifecycle software development, cloud, security, testing and DevOps practices.
Ionic Framework, Angular, PL/SQL, Oracle Application Express, Oracle, Ruby, Python, Java, C, C++, C#, COBOL, SQL, .NET, JavaScript, Microsoft Azure
1mo
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Engineer, IAM
Bethpage or Plano
$84k-$137k/yr OnsiteFull Time
Optimum
OptimumNYSE: OPTU: Provides broadband, television, and mobile connectivity services to customers.
3+ YOEBachelor's or equivalent, 3+ years IAM experience, hands-on CIAM/platform administration, knowledge of OAuth 2.0/OIDC/SAML/SCIM/FIDO2/WebAuthn, scripting ability (JavaScript, Python, Java, Go), cloud familiarity (AWS/Azure/GCP).
OpenID Connect (OIDC), OAuth 2.0, SAML 2.0, FIDO2, WebAuthn, SCIM, SIEM, Terraform, AWS, Azure, GCP, JavaScript, Python, Java, Go, CI/CD, Application Insights
1mo
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Application Development Lead, Margin and Risk, Vice President
Jersey City, New Jersey, United States
$142k-$213k/yr HybridFull Time
Citi
CitiNYSE: C: Global diversified financial services holding.
6+ YOE6+ years apps development experience with Java, Spring and distributed systems; experience with Kafka, Oracle, REST/gRPC, Docker/Kubernetes; margin or risk domain experience preferred.
Java, Spring, Kafka, Apache Ignite, Oracle, MongoDB, Python, REST, WebSocket, gRPC, Docker, Kubernetes, OpenShift