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Senior Software Development Engineer in Test (SDET)

Role overview

Qualifications

  • Strong coding skills in Java, JavaScript, or Python for test automation
  • Hands-on experience with automation tools such as Selenium, Playwright, Cypress, Postman, REST Assured, Gatling, K6, JMeter
  • Deep understanding of BDD (Cucumber/Gherkin) and exploratory testing practices
  • Experience working in Agile, DevOps, or hybrid environments

Responsibilities

  • Implement testing strategies based on project archetype (Startup, Enterprise, Fintech, or Legacy)
  • Develop and maintain test automation frameworks (unit, API, UI, and performance)
  • Build scalable, containerized test environments using Docker, Kubernetes, and service virtualization
  • Integrate test automation into CI/CD pipelines (GitHub Actions, Jenkins, etc.)

Key facts

Hard skills

Other skills

  • Problem Solving
  • Communication
  • Collaboration

About the company

Payforge logo

Payforge

Computer Software / SaaS

Payforge designs and delivers modern AI-driven payment infrastructure. We help payment companies, fintechs, and banks build faster, navigate technical complexity, and scale with confidence. From acquiring to issuer processing, and cross-border to treasury, we bring hands-on engineering expertise and deep domain fluency to accelerate growth and help our clients realize their ambitions. Headquartered in Seattle and London, we partner with product and engineering leaders to ship solutions that deliver impactful business outcomes across the payments stack.

Company details

Company typeStartup
IndustryComputer Software / SaaS
Company size11 - 50

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Job description

About the Role

As an Senior SDET in our engineering team, you’ll play a key role in shaping how we build quality into everything, right from the first line of code. You will develop and implement high-coverage, maintainable automation frameworks and partner closely with developers, DevOps, and quality engineering pods to deliver AI-augmented, continuous quality across projects ranging from fintech platforms to rapid MVP builds and legacy system modernization.

Responsibilities

  • Implement testing strategies based on project archetype (Startup, Enterprise, Fintech, or Legacy).
  • Develop and maintain test automation frameworks (unit, API, UI, and performance).
  • Build scalable, containerized test environments using Docker, Kubernetes, and service virtualization.
  • Integrate test automation into CI/CD pipelines (GitHub Actions, Jenkins, etc.).
  • Participate in model-based test design (MindMaps, Test Model Generators, Gherkin).
  • Champion shift-left practices (e.g., mutation testing, Git pre-commit hooks).
  • Contribute to observability-based testing using logs, metrics, and traces.
  • Drive test intelligence reporting via Grafana, Allure, ReportPortal dashboards.
  • Apply AI-based tools for flaky test detection, auto-healing, and intelligent test prioritization.
  • Collaborate on internal quality initiatives to innovate, improve and scale reusable test assets across teams.

Must-Have Skills

  • Strong coding skills in Java, JavaScript, or Python for test automation
  • Hands-on experience with automation tools such as:
    • UI: Selenium, Playwright, Cypress
    • API: Postman, REST Assured
    • Performance: Gatling, K6, JMeter
  • Deep understanding of BDD (Cucumber/Gherkin) and exploratory testing practices
  • Experience working in Agile, DevOps, or hybrid environments
  • Solid command of CI/CD tooling (e.g., GitHub Actions, Jenkins, GitLab CI)
  • Working knowledge of Docker and Kubernetes
  • Familiarity with test design for Web, Mobile, APIs and Microservices

Nice-to-Have / Emerging Skills

  • Knowledge of contract testing (Pact or similar)
  • Exposure to observability tools (Grafana, ELK Stack, DataDog)
  • Knowledge of AI-based testing tools (test generation, flaky test detection)
  • Experience testing ETL pipelines, LLM apps, or data compliance
  • Understanding of regulatory testing (HIPAA, GDPR, SOX, PCI-DSS)

Soft Skills & Cultural Fit

  • T-shaped mindset: expertise in one domain, curiosity across many
  • Strong problem-solving and failure analysis instincts
  • Collaborative communicator across cross-functional agile teams
  • Passion for test innovation, automation, and quality-first thinking

Why Join Us?

  • Build next-gen QA systems  - from AI-integrated tests to quality observability
  • Thrive in a cross-skilled culture driven by continuous learning
  • Collaborate with DevTestOps-aligned teams
  • Influence Quality as a Service innovation for global clients

About Payforge

Payforge is a specialist professional-services company focused exclusively on payments and fintech. We help clients deliver high-quality, scalable technology solutions in an evolving global financial landscape.

Equal Opportunity Statement

Payforge is proud to be an equal-opportunity employer. All qualified applicants will receive consideration without regard to race, colour, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. We welcome applicants from all backgrounds.

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Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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