Senior Software Developer in Test – QA with Python and pytest

By myKelly | July 27, 2026

Senior Software Developer in Test - QA with Python and pytest

Apply On Motion Recruitment Applied

Job ID: mrp-883477

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Boston, ,

Information Technology

Direct Hire,

$140000 - $180000

On-site

Other/Non Classified

Boston, ,

$140000 - $180000

Direct Hire,

Other/Non Classified

On-site

Information Technology

Apply On Motion Recruitment Applied

Job details

A leading investment and capital management firm is continuing to modernize its technology platform and is seeking a Senior Software Developer in Test (SDET) to help drive software quality across its cloud-native trading, portfolio management, and financial systems. This is an opportunity to join a highly collaborative engineering organization where quality is treated as a core engineering discipline rather than a separate QA function.

This role is ideal for an experienced automation engineer who enjoys writing production-quality code, building scalable test frameworks from scratch, and partnering closely with software engineers throughout the SDLC. You’ll help define the automation strategy for mission-critical financial applications while working with modern cloud technologies, distributed systems, and CI/CD pipelines.

Required Skills & Experience

  • 6+ years of experience as a Software Developer in Test (SDET), QA Automation Engineer, or Software Engineer focused on test automation
  • Expert-level Python programming skills
  • Extensive experience building and maintaining automation frameworks using PyTest
  • Experience developing automated API, integration, regression, and end-to-end test suites
  • Strong understanding of object-oriented programming and software engineering best practices
  • Experience testing cloud-native applications deployed in AWS, Azure, or Google Cloud Platform
  • Experience integrating automated testing into CI/CD pipelines
  • Strong experience with REST APIs, JSON, and API automation tools
  • Solid understanding of SQL and database validation techniques
  • Experience working within Agile software development environments
  • Excellent analytical, troubleshooting, and communication skills

Desired Skills & Experience

  • Experience within investment management, asset management, hedge funds, financial services, or fintech
  • Experience with Playwright, Selenium, or modern UI automation frameworks
  • Familiarity with Docker, Kubernetes, and containerized applications
  • Experience testing distributed systems, microservices, and event-driven architectures
  • Exposure to Kafka, RabbitMQ, or messaging platforms
  • Experience with performance testing tools such as k6, JMeter, or Locust
  • Familiarity with GitHub Actions, Jenkins, GitLab CI, or Azure DevOps
  • Experience mentoring junior automation engineers
  • Bachelor’s degree in Computer Science, Engineering, or a related technical discipline

What You Will Be Doing

  • Design, develop, and maintain enterprise-grade automation frameworks using Python and PyTest
  • Build automated testing solutions for APIs, backend services, web applications, and cloud platforms
  • Partner closely with Software Engineers throughout the development lifecycle to improve software quality
  • Create reusable automation libraries and testing utilities that scale across multiple engineering teams
  • Develop automated regression, smoke, functional, integration, and end-to-end test suites
  • Integrate automated testing into CI/CD pipelines to support continuous delivery
  • Identify quality gaps early through automation and proactive testing strategies
  • Debug complex software issues and work alongside developers to resolve production defects
  • Contribute to automation standards, coding best practices, and quality engineering initiatives
  • Continuously evaluate new testing tools and technologies to improve engineering efficiency

Tech Breakdown

  • 45% Python & PyTest Automation Development
  • 25% API & Backend Testing
  • 20% Cloud, CI/CD & DevOps Integration
  • 10% Test Strategy & Quality Engineering

Daily Responsibilities

  • 80% Hands-On Automation Development
  • 10% Cross-Functional Collaboration
  • 10% Test Strategy, Code Reviews & Mentorship

The Offer

You will receive the following benefits:

  • Competitive base salary
  • Annual discretionary bonus
  • Medical, Dental, and Vision insurance
  • 401(k) with company match
  • Paid Time Off and company holidays
  • Professional development and certification reimbursement
  • Hybrid work environment
  • Opportunity to build next-generation automation frameworks supporting mission-critical financial applications

Applicants must be currently authorized to work in the United States on a full-time basis now and in the future. No sponsorship is available for this position.

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