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Python Test Software Developer Jobs in Fairfield, CT, US
100+ python test software developer jobs from 55 companies hiring in Fairfield, CT, US.
2mo
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Software Test Engineer
New York, New York, United States
$106k-$133k/yr OnsiteFull Time
3+ YOEBachelor’s degree in CS or related field; 3+ years automated testing and software development experience; proficient in multiple languages; able to obtain US security clearance.
C/C++, Java, VB, ASP, PHP, Perl, Python, Shell Script
2mo
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Software Engineer III- Python/PySpark
Jersey City, New Jersey, United States
$133k-$185k/yr OnsiteFull Time
3+ YOE3+ years in software engineering; design, development, testing, and operations; AWS data solutions; Python or Java; PySpark/Spark; SQL/NoSQL databases; SDLC and CI/CD; agile and security.
Python, PySpark, Spark, AWS, Lambda, EKS/ECS, S3, SQL, PostgreSQL, DynamoDB, Databricks, CI/CD
2mo
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Sr Lead Software Engineer - C++, Python
Jersey City, New Jersey, United States
$171k-$260k/yr OnsiteFull Time
5+ YOE5+ years C++/Python software engineering; cloud-native; system design, development, testing; secure, scalable production code.
C++, Python, Cloud
4d
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Software Development Engineer in Test (SDET)
Shelton, Connecticut, United States
$103k-$128k/yr OnsiteFull Time
4+ YOE4–7 years in software testing/automation; strong coding skills; familiarity with test automation frameworks; REST API testing; CI/CD experience.
Programming languages, Test automation frameworks, Selenium, Cypress, Playwright, REST-assured, Postman, Java, JavaScript, Python, C#, CI/CD
1mo
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Test Automation Engineer
Greenwich, Connecticut, United States
HybridFull Time
3+ YOE3+ years software engineering with strong Python and testing skills; experience with unit testing frameworks; Bachelor's degree in a quantitative field; strong communication and collaboration.
Python, pytest, unittest, git
2mo
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Software Engineer
New York, New York, United States
$120k-$180k/yr RemoteFull Time
2+ YOE2+ years software engineering; frontend (React/Vue) and backend (Python/Node); SQL databases, Docker, AWS; tests and quality; fast learning and adaptability.
React, Vue, Python, Node, SQL, Docker, AWS
3w
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Senior Software Engineer – Quantitative Research
Greenwich, Connecticut, United States
$175k-$200k/yr OnsiteFull Time
7+ YOE7+ years software engineering; Python; quantitative finance knowledge; design patterns; testing; strong communication.
Python, AWS, Data ingestion, Software development tools
1mo
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Software Engineer
New York, New York, United States
OnsiteFull Time
7+ YOE7-10+ years in C++ development; strong C++, STL, data structures, templates; modern C++ (C++11-20); TCP/IP; Linux; unit testing; code reviews; CI; Python/Fix Protocol preferred.
C++, STL, TCP/IP, UDP/Multicast, Linux, Python, Fix Protocol, Unit testing, Continuous Integration
1mo
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Software Engineer, Data
New York, New York, United States
$145k-$200k/yr HybridFull Time
Proven software engineer; proficient in Spark, Java, Kotlin, Python; relational DBs; Git; strong problem-solving; team collaboration; cloud experience; Agile; testing; containerization.
Spark, Java, Kotlin, Python, Hive, Redshift, Presto, Snowflake, MySQL, PostgreSQL, Git, JUnit, Kubernetes, Docker, AWS, Azure, GCP
2w
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Software Engineer
Bronx, New York, United States
$150k-$180k/yr HybridFull Time
2+ YOE2+ years software engineering; full-stack; self-directed; tests; ownership; healthcare/healthtech interest encouraged.
Python, FastAPI, React, TypeScript, MSSQL, Redis, Azure, Terraform
1mo
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Senior Software Engineer, Developer Productivity
New York City or Menlo Park
$150k-$273k/yr RemoteFull Time
5+ YOE5+ years software engineering; 2+ years in DevOps/platform/infrastructure; CI/CD at scale; Python and/or Go; automated testing for distributed systems; containerization (Docker, Kubernetes); strong debugging; cross-functional collaboration; clear communication.
Python, Go, GitHub Actions, CircleCI, ArgoCD, Docker, Kubernetes, Testing frameworks, Terraform, Pulumi, Datadog, OpenTelemetry
1mo
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Principal Software Development Engineer in Test
New York or Glendale
$172k-$241k/yr HybridFull Time
10+ YOE10+ years in quality engineering, automation or software development; leadership in large, complex systems; expertise in test automation; strong communication and mentoring.
Python
3d
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Senior Software Engineer
New York, New York, United States
$174k-$252k/yr OnsiteFull Time
5+ YOEBachelor's degree or equivalent; 5 years OO experience in Java/C++/Python; 3 years testing/maintaining/launching software; 1 year in design/architecture.
Java, C++, Python
1mo
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Software Engineer, Experimentation & Instrumentation
New York, New York, United States
$110k-$130k/yr HybridFull Time
3+ YOE3+ years of software engineering experience; backend or full-stack; proficiency in Java, Go, Python, or JavaScript/TypeScript; CI/CD, testing, and production systems; Agile; strong problem solving and communication.
Java, Go, Python, JavaScript/TypeScript, CI/CD, BigQuery, Snowflake, Redshift
2w
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Developer II - Python
New York City, New York, United States
$85k-$110k/yr HybridFull Time
Python development (3+ years), Flask/FastAPI/Django, AI tools, Docker, Git, testing, ORM (SQLAlchemy/Django ORM), and containerized/cloud workflows.
Docker, Git, pytest, SQLAlchemy, Django ORM, Flask, FastAPI, GitHub Copilot, OpenAI/Claude APIs
2mo
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Software Engineer II
Bohemia, New York, United States
$78k-$105k/yr OnsiteFull Time
2+ YOEDesign, code, test software; collaborate; mentor interns; U.S. Person status required.
Python, Unity, Cpputest, Google Test, Bullseye, C#, C, C++, GCC, G++, JTAG, Oscilloscope, Logic Analyzer, Multimeter
2mo
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Senior Quantum Error Correction Software Engineer
New Haven, Connecticut, United States
$140k-$225k/yr HybridFull Time
5+ YOE5+ years software development; experience in quantum computing; strong C/C++/Python; QEC knowledge; Git, testing, and collaboration skills.
C, C++, Python, Qiskit, Q#, CUDA-Q, Stim, Git, Rust
1mo
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Senior Software Engineer
New York, New York, United States
$149k-$199k/yr HybridFull Time
5+ YOE5+ years in development, reliability or performance optimization; BS in CS/CE/Math; C/C++ systems; HTTP caching; streaming knowledge; testing and observability.
C, C++, HTTP caching, Linux, Python, Java, Go, Varnish (preferred)
1w
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Senior Software Engineer, Reporting Experience
New York City or Reno or San Ramon
$153k-$210k/yr HybridAll Commitments Available
5+ YOE5+ years in software engineering; 5+ years front-end with React/Jest/JavaScript/TypeScript; proficiency in Kotlin/Java/Python; experience with automated testing; eagerness to learn; strong problem-solving and communication.
React, Jest, JavaScript, TypeScript, Kotlin, Java, Python, Docker, AWS, GraphQL, RESTful APIs
2mo
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Senior Backend Software Developer
New York City or United States
$150k-$180k/yr HybridFull Time
7+ YOE7+ years of job-related experience; strong Python (Flask/SQLAlchemy); advanced PostgreSQL; AWS; IaC (Terraform); unit tests; Git; ability to lead features; excellent communication.
Python, Flask, SQLAlchemy, PostgreSQL, AWS, Terraform, Git
1w
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OEMS Software Engineer Lead, VP - BXCI
New York, New York, United States
$200k-$225k/yr OnsiteFull Time
7+ YOE7+ years software engineering; proficient in C# and/or Python, JavaScript/TypeScript; cloud (AWS); hands-on tech lead; RESTful APIs; OO design; testing/performance; fixed-income front-office systems; Bachelor's in CS/Engineering.
Angular, React, FastAPI, Python, C#, TypeScript, SQL, NoSQL, AWS, Terraform, Jenkins, GitLab, Snowflake
1mo
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Senior Software Engineer - Client Portal
Brooklyn, New York, United States
$145k-$175k/yr OnsiteFull Time
Senior full-stack engineer with Python (FastAPI), React/React Native, Expo, and AWS; strong emphasis on code quality, testing, and collaboration.
FastAPI, Python, React, React Native, Expo, AWS
5d
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Senior Software Engineer II
Boston or New York City
$176k-$196k/yr OnsiteFull Time
7+ YOE7+ years of experience with Go/Java, microservices, AWS, Kafka; experience with gRPC/Thrift; strong testing, monitoring, and Agile practices.
Go, Java, gRPC, Thrift, Kafka, AWS, Python, NodeJS
1mo
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Senior Software Engineer
New York City or Downtown Brooklyn
$120k-$125k/yr HybridFull Time
3+ YOE3+ years server-side languages (Python/Node.js/PHP); MVC frameworks (Django); databases (MySQL/PostgreSQL); frontend (HTML/CSS/JS/React); Git; 1 year AWS/Azure/Docker; 1 year integrations/testing.
AWS, Docker, Git, Django, MySQL, PostgreSQL, React, HTML, CSS, JavaScript, TypeScript
1mo
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Software Quality Engineer II - Mobile Product (Bethpage, NY, US, 11714)
Bethpage, New York, United States
$100k-$165k/yr OnsiteFull Time
5+ YOEBachelor’s in CS or related field; 5+ years in software development, automation, and tools; 3+ years in mobile automation; Python or Java; cloud experience (GCP/AWS); CI/CD; test automation.
Python, Java, Jira, Confluence, Google Cloud, Amazon Web Services, CI/CD, QA automation frameworks
2mo
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Lead Software Engineer –Hybrid NYC
New York City or Baltimore
$145k-$309k/yr HybridFull Time
8+ YOE8+ years of experience in software engineering; leadership of engineering teams; cloud-native solutions on AWS or Azure; containerized microservices; proficiency in OO languages; strong problem solving and communication; automated testing and continuous delivery.
AWS, Azure, Containerization, Microservices, Java, Python, JavaScript, Agent frameworks
1w
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Software Engineer, Testing
Overland Park or Kansas City or New York or Chicago
$94k-$121k/yr HybridFull Time
2+ YOE2+ years QA or Software Engineering with automated testing; strong Python; SQL; CI/CD; Kafka; Git; Linux; testing of real-time trading systems.
Python, SQL, PostgreSQL, Snowflake, Jenkins, GitHub Actions, Docker, Kubernetes, Linux, Apache Kafka, Git
1mo
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Jr. Software Engineer - AI & Prompt Engineering (Contract to Perm)
New York, New York, United States
$40-$60/hr OnsiteContract, Full Time
Bachelor’s degree in Computer Science or related field; strong CS fundamentals; proficiency in at least one language (Python/JavaScript/Java); familiarity with APIs, debugging, testing, and version control; exposure to AI/prompt engineering.
Python, JavaScript, Java, APIs, Git
3w
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Avionics Software Engineer III
Hauppauge, New York, United States
$73k-$105k/yr OnsiteFull Time
3+ YOEBachelor's or equivalent with 3+ years related experience; C, Linux shell scripts; formal requirements and test procedures; HW/SW debug; strong communication; U.S. citizenship; ability to obtain security clearance.
VectorCast, Green Hills, DOORS, Python, Lab environment, HW/SW debug, C, Linux
2mo
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Lead Software Engineer –Hybrid NYC
New York City or Baltimore
HybridFull Time
8+ YOE8+ years in object-oriented languages; cloud-native solutions on AWS/Azure; leadership of engineering teams; strong communication; CI/CD and automated testing; focus on AI/ML platforms.
Java, Python, JavaScript, AWS, Azure, Docker, Kubernetes, CI/CD, AI frameworks
1mo
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Senior Associate - Sr. Quality Test Engineer (SDET) (New York, NY, US)
New York, New York, United States
$81k-$116k/yr HybridFull Time
5+ YOE5+ years QA/SDET, strong programming, test automation, CI/CD, API/UI testing, AI testing interest.
Java, Python, JavaScript, TypeScript, Selenium, Cypress, Playwright, MABL, REST Assured, Jenkins, GitHub Actions, GitLab CI, Azure DevOps, Postman, SOAP UI, SQL, NoSQL, Docker, Kubernetes, JMeter, Gatling, Locust, GenAI
1w
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SDET (Software Development Engineer in Test) with IVR Testing (New York, NY, US)
New York, New York, United States
$78k-$86k/yr OnsiteFull Time
6+ YOE6–9 years in software development, test automation, or quality engineering; strong programming in Java, JavaScript, Python; experience with telecom/IVR testing; cloud familiarity (AWS); CI/CD knowledge.
Java, JavaScript, Python, JUnit, TestNG, Selenium, Playwright, Empirix Hammer, CallMaster, Rest Assured, Karate, AWS, Jenkins, SonarQube
1mo
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Jr. Software Engineer - AI & Prompt Engineering (Contract to Perm)
New York, New York, United States
$40-$60/hr OnsiteContract, Full Time
0+ YOEBachelor's in CS or related field; strong CS fundamentals; one programming language; knowledge of debugging, testing, Git; API basics; interest in AI/prompt engineering.
Git, APIs, HTTP, Python, JavaScript, Java
1d
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Software Engineer (Development & QA Automation) (Hybrid - Newark, NJ or NYC)
Edgewood or Newark or New York City
$90k-$950k/yr HybridFull Time
Bachelor's degree in Computer Science or equivalent; experience with Java, Python, Perl, Linux, scripting, Selenium, and Cucumber; automated testing experience; AGILE knowledge.
Java, Python, Perl, Linux, Shell scripting, Selenium, Cucumber
3d
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Software Engineer III, Social
New York, New York, United States
$140k-$166k/yr HybridFull Time
3+ YOE3+ years backend development; AI tooling experience; building, testing, deploying, monitoring services; event-driven architectures; relational and NoSQL DBs; Kotlin or Python; REST/gRPC/GraphQL; Kubernetes, Terraform, CI/CD.
Kotlin, Python, PostgreSQL, MySQL, DynamoDB, Cassandra, MongoDB, Redis, Memcached, Kubernetes, Terraform, GitHub Actions, Jenkins, REST, gRPC, GraphQL, LLMs
1mo
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Prime RAD Developer
New York, New York, United States
$120k-$175k/yr OnsiteFull Time
Design, develop, and improve software using Python, AngularJS/ReactJS, REST APIs, SQL; containerize with Docker; implement CI/CD; ensure secure coding and testing.
Python, AngularJS, ReactJS, RESTful APIs, Docker, CI/CD, SQL
5d
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Principal Engineer
New York, New York, United States
$180k-$225k/yr OnsiteFull Time
8+ YOELead architect for a web-based test management platform; 8+ years software development; React/TypeScript; REST APIs; Agile workflows.
React, TypeScript, Python, REST APIs, Kafka, WebSocket, SSE, gRPC-Web
2mo
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Senior/Principal Software Engineer - Growth (CoreAI)
Mountain View or San Francisco or Redmond or New York or Boston
$120k-$235k/yr HybridFull Time
4+ YOESoftware engineering role requiring 4+ years experience; proficiency in multiple languages; strong in building, shipping, and operating production services; experience with A/B testing and experimentation.
C, C++, C#, Java, JavaScript, Python
1mo
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QA Automation Engineer
Upper Saddle River, New Jersey, United States
$60k/yr OnsiteFull Time
2+ YOE2+ years in software QA and test automation; strong Python or Java; experience with Selenium, Playwright, JUnit, TestNG, pytest; SDLC knowledge; API and web/backend testing; CI/CD and Git experience.
Python, Java, Selenium, Playwright, JUnit, TestNG, pytest, Git, CI/CD
1mo
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QA Engineer - Director
New York, New York, United States
$120k-$165k/yr HybridFull Time
5+ YOE5+ years in QA, Selenium, Python; regression suites; CI/CD; Django backend testing; collaboration with product and engineering teams.
Selenium, Python, Django, CI/CD, Regression testing
HiringCafe market data
Python Test Software Developer Jobs market signals in Fairfield, CT, US
These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.
Open jobs
100+
Hiring companies
55
Fresh sample
38% new in 30d
Salary visibility
90% show pay
Companies appearing in this market
JPMorgan ChaseGoogleOptimumBarclaysCapgeminiSubwayD-Wave QuantumIntercontinental Exchange
Work location mix in visible results
Onsite: 37Hybrid: 22Remote: 2