Senior Software Test Engineer

About the role

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world’s most complex challenges today. We are seeking a Senior Software Test Engineer to join our team. The role involves developing and executing comprehensive manual functional and user-acceptance tests to assess software product quality, while also evaluating how custom web applications, distributed architectures, and interoperable data streams function together as a unified ecosystem. You will assist in implementing automated testing frameworks to scale these efforts and contribute to new testing strategies aimed at verifying the quality, robustness, and integrity of AI-assisted code development.

Responsibilities

• Perform software product testing via website interactions and tooling to investigate possible causes of problems.
• Develop functional, end-to-end, regression, and performance tests in manual test environments.
• Evaluate how custom web applications, distributed architectures, and interoperable data streams function together as a unified ecosystem.
• Aid in the progressive rollout and implementation of automated testing frameworks to scale existing manual efforts.
• Contribute to the design of new testing strategies aimed at verifying the quality, robustness, and integrity of AI-assisted code development.
• Detect, document, and track software defect reports and feature requests.
• Understand, reproduce, and troubleshoot product defects, collaborating closely with developers to determine the best resolution.
• Assist in the planning and implementation of Testing-Team processes and solutions in alignment with program and operational timelines.

Requirements

• 5+ years of software testing experience, with exposure to web automation tools (e.g., Selenium, Playwright, Cypress, etc.).
• 3+ years of experience with backend API testing, integration testing, and functional testing.
• Solid understanding of networking concepts, distributed systems, and cross-network data flows.
• Experience with UNIX / LINUX-based operating systems.
• Experience with SQL or other relational/non-relational database technologies.
• Familiarity with, or a strong interest in, modern development workflows using AI-assisted coding tools and methods for verifying code integrity.
• Experience testing complex, data-heavy systems or interoperable data streams.
• Solid grasp of technical writing and documentation.
• Bachelor’s degree in a relevant field, or comparable professional experience.

Qualifications

• Nice if you have: military cyber experience, networking experience, or understanding of common military, cyber, and networking vernacular; familiarity with AI development and testing capabilities; familiarity with virtualization or cloud technologies such as Docker, vSphere, Ansible, or AWS; understanding of the Agile Software Development Life Cycle; experience refining low-level testing or configuration scripts using Bash, Python, or Javascript; experience with creating automated tests for geospatial libraries such as OpenLayers and CesiumJS.

Benefits

We offer a competitive and comprehensive compensation package that reflects the value we place on our employees and their contributions. Our offerings include medical, dental, and vision insurance, life and disability insurance, retirement benefits, paid leave, tuition assistance and professional development.

Pay

The projected salary range listed for this position is annualized. This is a general guideline and not a guarantee of salary. Salary is one component of our total compensation package and the specific salary offered is determined by various factors, including, but not limited to education, experience, knowledge, skills, geographic location, as well as contract specific affordability and organizational requirements.

Schedule

This role is expected to be on-site at TST’s Arlington headquarters 4-5 days per week.