Job Description Everforth ECS is seeking a
Software Development Test Engineer to work in a
Arlington, VA (Hybrid) .
About the Role 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.
Job 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
Salary Range: $140,000 - $160,000
General Description of Benefits
Required Skills - 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
Desired Skills - Experience testing domain management systems, DNS platforms, or infrastructure-as-a-service offerings
- Familiarity with domain registry/registrar architecture, including the registry-registrar model and EPP (Extensible Provisioning Protocol)
- Working knowledge of DNS concepts and record types
- Experience delivering technical excellence in the federal space, particularly with DHS programs and the DHS SELC
- Experience with performance and load testing tools and methodologies
- Programming/scripting experience in Python or JavaScript for test automation development
- Experience with API testing tools (Postman, REST Assured, or similar)
- Relevant professional certifications (ISTQB, CSTE, or similar quality/testing certifications)
- Experience with security testing tools and methodologies
- Contributor to open source testing projects or tools
- Experience with test data management and test environment configuration
- Knowledge of customer experience/human-centered design principles and how they inform quality validation
#EverforthECS1
ECS Federal LLC is an equal opportunity employer and does not discriminate or allow discrimination on the basis any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law.
Everforth ECS is the federal segment of
Everforth , a $4B global organization with over 10,000 employees. Our nearly 3,500 professionals deliver advanced technology solutions in data and AI, cybersecurity, and enterprise transformation, serving defense, intelligence, and federal civilian agencies.
Our work powers mission-critical outcomes, strengthens technology partnerships, and creates meaningful opportunities for our people. We are defined by a commitment to excellence in delivery, a culture of innovation, and an environment where talent can thrive and grow.
We value:
- Attracting and developing top talent and high-performing teams
- Fostering a culture that is engaging, accountable, and mission-driven
Meet the challenge. Make a difference with Everforth ECS! 
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