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Senior Python Developer Jobs in Greenwich, CT (NOW HIRING)

ION Group

Lead Python Developer, New York

New York, NY · On-site

$153K - $188K/yr

The Role Lab49 is seeking a skilled Python Developer to work on complex and challenging projects ... The base salary range across different levels are: • Mid to Senior level - $180,000 - $220,000 ...

Jobsbridge

Python Engineer

New York, NY · On-site

ElasticSearch or Lucene - Experience in a fast-paced/customer-centric agile startup environmentSo, if you are a Senior Software Engineer with experience in Object-Oriented Python Development, please ...

Elliot Partnership

AI Developer (Gen AI)

New York, NY · On-site

* Senior Software Engineer - Generative AI (Applied AI & Engineering) * New York City (Hybrid - 3 ... Serve as a hands-on technical expert, shipping code in Python. Required Qualifications * A Bachelor ...

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Senior Python Developer information

See Greenwich, CT salary details

$61.8K

$159.4K

$219K

How much do senior python developer jobs pay per year?

As of Jul 10, 2026, the average yearly pay for senior python developer in Greenwich, CT is $159,442.00, according to ZipRecruiter salary data. Most workers in this role earn between $136,400.00 and $183,600.00 per year, depending on experience, location, and employer.

What are the main responsibilities of a Senior Python Developer?

A Senior Python Developer is responsible for designing, developing, and maintaining complex software applications using the Python programming language. They lead the technical aspects of projects, mentor junior developers, and ensure code quality through code reviews and best practices. Additionally, they collaborate with cross-functional teams to gather requirements, solve technical challenges, and deploy scalable and efficient solutions. Senior Python Developers are also expected to stay updated with the latest trends and advancements in Python and related technologies.

What is the difference between Senior Python Developer vs Python Developer?

AspectSenior Python DeveloperPython Developer
Required ExperienceTypically 5+ years, with leadership and complex project experienceUsually 1-3 years, focusing on core Python skills
ResponsibilitiesDesigning architecture, mentoring, handling complex systemsWriting code, debugging, implementing features
CertificationsOptional but beneficial (e.g., Python certifications, cloud certs)Often not required
Work EnvironmentCollaborative teams, project planning, code reviewsDevelopment-focused, task-oriented

The main difference between a Senior Python Developer and a Python Developer lies in experience, responsibilities, and leadership. Senior developers handle complex projects, mentor others, and often participate in architecture decisions, while Python Developers focus on coding and feature implementation. Both roles are essential in tech companies, but the senior role requires more experience and broader skills.

What are the key skills and qualifications needed to thrive as a Senior Python Developer, and why are they important?

To thrive as a Senior Python Developer, you need advanced proficiency in Python programming, experience with software architecture, and a solid understanding of algorithms and data structures, usually backed by a degree in computer science or related fields. Familiarity with frameworks like Django or Flask, version control systems such as Git, and containerization tools like Docker are typically required, alongside knowledge of modern CI/CD pipelines. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with teams and mentor junior developers. Mastery of these skills ensures the delivery of scalable, maintainable software solutions and the ability to drive technical excellence within development teams.

What are some common challenges faced by Senior Python Developers when leading a development team?

Senior Python Developers often encounter challenges such as balancing hands-on coding with mentoring junior team members and ensuring code quality across the team. They are also responsible for making architectural decisions, which requires staying updated on best practices and emerging Python frameworks. Additionally, coordinating collaboration between cross-functional teams (like DevOps, QA, and front-end developers) can be complex, especially in agile environments where requirements may shift rapidly. Overcoming these challenges helps foster a productive and innovative team culture.
What are the most commonly searched types of Python Developer jobs in Greenwich, CT? The most popular types of Python Developer jobs in Greenwich, CT are:
What are popular job titles related to Senior Python Developer jobs in Greenwich, CT? For Senior Python Developer jobs in Greenwich, CT, the most frequently searched job titles are:
What cities near Greenwich, CT are hiring for Senior Python Developer jobs? Cities near Greenwich, CT with the most Senior Python Developer job openings:
Senior Python Developer jobs near you
Infographic showing various Senior Python Developer job openings in Greenwich, CT as of July 2026, with employment types broken down into 63% Full Time, 6% Part Time, and 31% Contract. Highlights an 81% In-person, 6% Hybrid, and 13% Remote job distribution, with an average salary of $159,442 per year, or $76.7 per hour.
Python and Test Automation Engineer

Python and Test Automation Engineer

Brains Workgroup, Inc.

Manhattan, NY • Hybrid

Full-time

Re-posted 3 days ago

Job description

Our client, a major bank in New York City, is looking for Senior Python and Test Engineer.  New York City Location.
This is hybrid commute, 2/3 days per week in the office.
** Must be authorized to work for ANY employer in US   - NO H1 Visa support for this role
Salary range 160 - 170K, plus around 15% bonus, plus great benefits package.
Senior Python & Test Automation Engineer
In this role you will be responsible for the design, development, automation, and support of applications and system components using Python, including but not limited to automation scripts, batch jobs, test automation frameworks, and backend processing components. The role requires full ownership of assigned applications and automation tasks across the SDLC, including development, unit testing, system testing, change management, production releases, and production support. A key expectation is a strong focus on automated testing (BDD), application performance, and system stability to ensure reliable and resilient
JOB REQUIREMENTS
Business Knowledge and Skills
  • At least 8–10 years of professional development experience.
  • Experience in banking, financial services, or other regulated environments preferred.

TECHNICAL SKILLS
CORE – MUST HAVE
  • Expert-level experience with Python development.
  • Strong hands-on experience with automation using Python scripts for jobs, workflows, and system processes.
  • Proven experience with test automation using BDD frameworks (e.g., Behave, Pytest-BDD).
  • Strong focus on unit testing using Python testing frameworks (Pytest, unittest, mocking libraries).
  • Demonstrated ability to build reliable, high-performance, and stable Python applications and batch jobs.
  • Experience with job scheduling, batch processing, and file/data processing.
  • Experience integrating automation and tests into CI/CD pipelines.
  • Solid understanding of object-oriented programming, modular design, and clean code practices.
  • Experience working with relational databases and SQL.
  • Strong troubleshooting skills and ability to resolve production issues under pressure.
  • Ability to analyze and document business processes, automation flows, and system behavior.

NICE TO HAVE
  • Experience with REST APIs and integration automation.
  • Experience with messaging or event-driven processing.
  • Exposure to container platforms (Docker, Kubernetes/OpenShift).
  • Familiarity with Linux/Unix environments.
  • Experience with performance profiling, logging frameworks, and observability tools.
  • Experience with cloud platforms (Mainly Azure).

OTHER
  • Bachelor’s degree or equivalent in Computer Science or related field.
  • Strong verbal and written communication skills.
  • Strong analytical, problem-solving, and multi-tasking abilities.
  • Ability to work effectively with end users, technical teams, and management as needed.

PRINCIPAL DUTIES AND RESPONSIBILITIES
Systems Design, Development and Support
  • Perform system and requirements analysis and translate business and operational requirements into automated Python solutions.
  • Design and develop Python-based automation scripts to automate jobs, workflows, data processing, and operational tasks.
  • Build and maintain backend Python applications and scheduled/batch processes with clear restart, recovery, and error-handling mechanisms.
  • Develop reusable libraries, utilities, and frameworks to standardize automation and testing patterns.
  • Apply well-accepted design patterns and best practices to ensure maintainable, scalable, and secure Python code.
  • Document technical designs, automation flows, and operational procedures.

Automation and Test Engineering
  • Design and implement test automation frameworks using BDD tools (e.g., Behave, Pytest-bdd, Cucumber-style frameworks).
  • Develop automated test suites covering functional, regression, and integration scenarios.
  • Enforce strong unit testing practices using Python testing frameworks; define coverage and quality expectations.
  • Integrate automated tests into CI/CD pipelines to ensure early defect detection and regression prevention.

System Testing: DUT, SIT and UAT (Planning, Execution and Evaluation)
  • Participate in planning and execution of DUT, SIT, and UAT, coordinating closely with QA and business teams.
  • Support defect analysis, remediation, and re-testing activities.
  • Ensure test evidence and documentation are produced to meet audit and compliance requirements where applicable.

Performance and Stability (Key Focus)
  • Proactively identify and resolve performance bottlenecks in Python scripts and applications.
  • Improve system stability through robust exception handling, retries, idempotency, and resource management.
  • Tune batch jobs and automated processes for efficiency, scalability, and predictable execution.
  • Establish logging, monitoring, and alerting standards for automated jobs and backend processes.

Issues Resolution and Production Support
  • Manage issues and enhancements using tools such as JIRA or equivalent issue tracking systems.
  • Provide production support, including incident triage, root-cause analysis, and timely resolution of issues.
  • Support operational controls such as certifications, password rotations, vulnerability remediation, and audit activities.

Other Responsibilities
  • No direct reports; however, this person should be able to run small to medium initiatives, support other developers, and provide technical guidance.
  • Coordinate with infrastructure, DevOps, and other technology teams to deploy and operate automation solutions.
  • Take complete ownership of assigned tasks and manage priorities with minimal daily supervision.

Please email your resume or use this link to apply directly:
https://brainsworkgroup.catsone.com/careers/index.php?m=portal&a=details&jobOrderID=16808955
Or email: igork@brainsworkgroup.com
Check ALL our Jobs: http://brainsworkgroup.catsone.com/careers
Keywords: python testing unit test bdd behave pytest-bdd Ci/CD sql rest api docker kubernetes openshift linux unix cloud azure