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2,261 python software engineer jobs at 845 companies in Fairfield, 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
2mo
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Python Software Engineer
New York, New York, United States
$150k-$225k/yr HybridFull Time
Old Mission
Old Mission: Quantitative proprietary trading firm specializing in global market making.
2+ YOEBachelor's in CS/Math/Engineering; 2+ years Python production; Python on Linux; relational DBs (PostgreSQL/MySQL); strong communication; collaborative; problem-solving.
Python, Linux, PostgreSQL, MySQL
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3w
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Python Senior Lead Software Engineer- Fixed Income Systematic Portfolios
New York, New York, United States
$171k-$260k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years software engineering experience, advanced Python, cloud-native service development, system design, productionizing quantitative workflows, experience with systematic investing or portfolio analytics, and formal software engineering training.
Python, Gurobi, Axioma, MSCI Open Optimizer, Bloomberg, FactSet, MSCI, Java, Kotlin, Clojure
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3w
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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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1w
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Senior Software Engineer - Python/Typescript
Chicago or Raleigh or Royal Oak or New York City or United States
$160k-$190k/yr HybridFull Time
SpotOn
SpotOn: Provides point-of-sale and business management software for restaurants.
7+ YOE7+ years software engineering experience, strong Python and TypeScript/JavaScript, production AI/LLM and agent experience, full-stack development, stakeholder collaboration, and production-grade reliability and observability.
Python, TypeScript, JavaScript, Claude Code, LangGraph, CrewAI, AutoGen, GitHub Copilot, Cursor, Windsurf, Salesforce, Apex, Lightning, AWS, GCP, Azure, GitHub, GitHub Actions, Jira, Slack
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1w
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Lead Software Engineer (Java, Python, AWS)
New York, New York, United States
$215k-$246k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.
4+ YOE1+ MgmtBachelor's degree, 4+ years professional software engineering experience, 1+ year cloud experience, proficiency in Java/Python, strong communication and critical thinking; people management experience preferred.
Java, Python, Go, Open Source RDBMS, NoSQL, Docker, Kubernetes, Databricks, AWS, Google Cloud, Microsoft Azure
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1mo
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Python Developer - 6249754
New York City or Cleveland or California or Colorado or District of Columbia or Illinois or Maine or Maryland or Massachusetts or Minnesota or New Jersey or New York or Virginia or Washington
$22-$72/hr HybridFull Time
Accenture
AccentureNYSE: ACN: Global provider of management consulting and technology services.
5+ YOEMinimum 5 years experience, advanced Python proficiency, Associates degree required (Bachelor's preferred). Preferred experience with Oracle NoSQL, MongoDB, React.js, application remediation and engineering support.
Python, Oracle NoSQL Database, MongoDB, React.js
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1mo
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Senior Python Developer
New York City, New York, United States
$121k-$182k/yr HybridFull Time
Citi
CitiNYSE: C: Providing global banking, investment, and wealth management services.
5+ YOE5+ years experience; bachelor\u0002s or equivalent in CS/Engineering/Math preferred; extensive Python and container orchestration knowledge; experience with systems analysis, programming, project delivery, and applying AI/GenAI.
Python, Docker, Kubernetes, OpenShift, AI, GenAI, CI/CD
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1w
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Senior Python Engineer
New York City, New York, United States
RemoteFull Time
DeweyLearn
DeweyLearn: AI-powered platform providing insights for educational teaching and learning.
5+ YOE5+ years professional Python experience, FastAPI and PostgreSQL production experience, Docker, EM/CI-CD fundamentals, experience with ML/AI and retrieval workflows preferred; fluent English.
Python, FastAPI, PostgreSQL, Docker, CI/CD
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1mo
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Senior Python Engineer
Minsk or New York City or Israel or Ukraine
RemoteFull Time
Commit
Commit: End-to-end software, cloud, and cybersecurity consulting and development.
3+ YOE3+ years backend experience, strong Python proficiency, production experience with at least two languages, AI-tool usage (Copilot/LLMs), solid design patterns, microservices, and strong communication.
Python, Copilot, LLMs
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1mo
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Senior Python Developer
New York City, New York, United States
$121k-$182k/yr HybridFull Time
Citi
CitiNYSE: C: Global diversified financial services holding.
5+ YOE5+ years experience; Bachelor's in CS/STEM preferred; extensive Python; experience with Docker, Kubernetes, OpenShift; systems analysis, programming, CI/CD, project implementation, and working with AI/GenAI integrations.
Python, Docker, Kubernetes, OpenShift, AI, GenAI, CI/CD
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2mo
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Senior Software Engineer (Python) - Contract (1099)
New York, New York, United States
$80/hr RemoteContract
Very
Very: Builds IoT and AI solutions for connected products.
8+ YOESenior Python backend engineer with 8+ yrs exp; 4+ yrs Python; full SDLC; remote US-based; contract 1099.
Python, Django, FastAPI, Node.js, React, Expo, Vite, TypeScript, AWS, Azure, Docker, Terraform, Pulumi, GitHub Actions, PostgreSQL, Redis, TimescaleDB, DynamoDB, Jest, Cypress, Pytest
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2d
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Software Engineer (AWS, Python, DevOps)
Irving or Stamford
$74k-$116k/yr HybridFull Time
Gartner
GartnerNYSE: IT: Provides research and advisory services for business leaders.
2+ YOEMS/BS in computer science or equivalent experience,2+ years AWS/cloud automation experience,containers and Kubernetes,infra automation with Terraform/CloudFormation,GitOps exposure,and scripting in Python/Shell/Groovy.
AWS, Docker, Kubernetes, Terraform, CloudFormation, GitOps, Python, Shell, Groovy
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6d
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Senior Python Engineer, Integration
Philadelphia or New York City or Austin or Sofia or Belgrade
RemoteContract
Fliff
Fliff: Operates a social sportsbook platform offering free-to-play gaming.
5+ YOE5+ years Python development experience focused on API and third-party integrations, observability, testing, and on-call production support.
Python, Django, Datadog, CloudWatch, Grafana
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3d
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Python Developer with Risk Modelling
New York City, New York, United States
OnsiteContract
Delan Associates
Delan Associates: Provides engineering and professional services to government agencies.
Convert Excel business logic to Python, strong knowledge of CCAR/scenario stress testing, balance sheet and liquidity modeling, IRR analytics, and develop REST APIs to interface with scenario engines.
Python, Microsoft Excel, REST API
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2mo
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Lead Software Engineer – Python/React
Eagan or Frisco or Brooklyn or Toronto
$118k-$220k/yr HybridFull Time
Thomson Reuters
Thomson ReutersNASDAQ: TRI: Provides professional software, data, and news services globally.
7+ YOE7+ years web development; backend focus (Python) with frontend capability; experience building production systems; strong API and distributed systems experience; leadership and collaboration skills.
Python, FastAPI, Django, Flask, APIs, Microservices, React, TypeScript, Next.js, Tailwind CSS, Pydantic, Cloud infrastructure
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1mo
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C++/ Python Developer – Algo & Analytics
Great Neck, New York, United States
$100k-$110k/yr OnsiteFull Time
FlexTrade Systems
FlexTrade Systems: Provider of multi-asset execution and order management trading software.
3+ YOE3+ years software development experience, degree in CS or equivalent, strong C++ and Python skills, UNIX experience, problem-solving, client-facing communication; trading algos and time-series/big-data exposure useful.
C++, Python, UNIX, FlexStrategy Server
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1mo
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Software Engineer
New York, New York, United States
$150k-$175k/yr HybridFull Time
Allara
Allara: Provides longitudinal virtual care for women's hormonal conditions.
3+ YOE3-10 years of software engineering; strong Python/TypeScript/JavaScript; full-stack development; REST APIs; SQL/NoSQL; AWS; collaborative team player; eager to learn.
Python, TypeScript, JavaScript, React, Next.js, AWS, REST APIs, SQL, NoSQL
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1w
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Software Engineer (C++ or Python) – 2027 Grads
New York City or London or Singapore or Austin or Chicago
$300k/yr OnsiteFull Time
Hudson River Trading
Hudson River Trading: A quantitative firm using technology to trade global financial markets.
BS/MS in CS or related; proficient in C/C++ or Python, strong CS fundamentals, Linux/UNIX knowledge, excellent debugging and problem-solving, eligible for full-time roles in 2027.
C/C++, Python, UNIX, Linux
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4d
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Software Engineer
New York, New York, United States
$130k-$170k/yr HybridFull Time
Tower Research Capital
Tower Research Capital: Global quantitative trading firm developing automated algorithmic strategies.
3+ YOE3–5 years software engineering experience, strong Python and SQL skills, experience with data workflows/ETL, web/backend development, Linux/Git, debugging, and working with AI-enabled tools.
Python, SQL, Linux, Git, Vue.js, Docker, Kubernetes, GitLab CI/CD, Django, Flask, FastAPI, FPGA, Model Context Protocol (MCP), retrieval-augmented generation (RAG)
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1mo
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Software Engineer
New York or London
HybridFull Time
ArcSpan Technologies
ArcSpan Technologies: Provides an AI-powered audience monetization platform for digital publishers.
4+ YOE4+ years software engineering experience in AdTech/MarTech, strong Python/Java/JavaScript/SQL skills, cloud experience (AWS/Azure/GCP), programmatic advertising domain knowledge, Agile familiarity.
AWS, Azure, Google Cloud Platform, Python, Java, JavaScript, SQL, NoSQL, S3, Lambda, Cloud Functions, Fargate, Cloud Run, CloudFront, CDN, GitHub Copilot
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