Software Development Test Engineer

ECS Tech Inc•Arlington, VA

20h•$140,000 - $160,000•Hybrid

About The Position

ECS seeks a dynamic and experienced Software Development Test Engineer to ensure the quality, reliability, and security of a large-scale, public-facing web platform serving enterprise clients managing critical digital infrastructure. You'll work embedded within an agile development team, collaborating closely with developers, team leads, UX/UI designers, and product stakeholders to deliver accessible, secure, and high-quality solutions. This platform includes complex features such as multi-entity account management, infrastructure services provisioning, secure administrative workflows, and domain management capabilities. A strong desire and aptitude for learning is essential—our solution is rapidly evolving with new requirements, technologies, and an ever-changing threat landscape. The ideal candidate will bring both manual and automated testing expertise, a passion for quality advocacy, and the ability to think holistically about system reliability across the full stack.

Requirements

Must be a US Citizen
Must be able to obtain a Public Trust Clearance
Bachelor's Degree in Computer Science, Information Systems, Engineering, or related technical discipline
5+ years of experience in software quality assurance and testing, with a mix of manual and automated testing
5+ years of hands-on experience testing enterprise-scale web applications built with modern web technologies (Python/Django and JavaScript frameworks)
5+ years of experience developing and maintaining automated test frameworks (e.g., Selenium, Playwright, Cypress, pytest, or similar)
Experience testing full stack web applications including frontend UI, backend APIs, and database interactions
Experience with testing in Agile/Scrum environments and integrating testing into SecDevOps/CI/CD pipelines
Working knowledge of Git-based version control and pull-request workflows
Experience with issue-tracking and test management tools (Jira, TestRail, GitHub, or similar)
Experience with accessibility testing to meet WCAG 2.1 AA / Section 508 standards, including use of automated accessibility testing tools
Experience testing applications that must meet federal security requirements and compliance standards
Strong analytical and problem-solving skills with attention to detail
Excellent communication skills with both technical and non-technical stakeholders
Experience with testing cloud-deployed, containerized applications
Experience testing relational database operations and API integrations

Responsibilities

Design, develop, and execute comprehensive test strategies including manual and automated testing to validate functionality, performance, security, and accessibility across the full stack (frontend UI, backend APIs, database operations, domain registry/DNS operations, and complex end-to-end workflows)
Build and maintain automated testing frameworks, integrate testing into CI/CD pipelines, and proactively recommend improvements to increase automation coverage and testing efficiency
Ensure compliance with federal accessibility standards (WCAG 2.1 AA / Section 508) and security requirements (Federal ATO, Login.gov/OIDC authentication), incorporating automated accessibility and security testing into development workflows
Identify, document, track, and verify resolution of defects using issue tracking systems; maintain test documentation and provide clear reporting on testing progress, coverage, and quality metrics
Collaborate with developers, the Technical Team Lead, product managers, and UX/UI designers throughout the agile development lifecycle—participating in sprint ceremonies, code reviews, and requirements discussions while serving as a quality advocate and identifying testability concerns early
Continuously evaluate and recommend testing tools, methodologies, and process improvements that enhance team effectiveness and align with modern web application best practices