Senior Software Engineer

TST Main Office (901 N. Stuart St) - Arlington, VAfull time

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On Site

senior

$97k–$140k

H1B: no

Two Six Technologies The Senior Software Test Engineer at Two Six Technologies develops and executes manual and automated tests to assess software product quality across web applications and distributed architectures. The role includes designing new testing strategies for AI-assisted code development and collaborating with engineering and operations teams.

Responsibilities

Location: This role is expected to be on-site at TST’s Arlington headquarters 4-5 days per week.
Perform software product testing via website interactions and tooling to validate intended functionality or identify and triage issues.
Create, maintain, and/or improve 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.
Assist 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.

Qualification

5+ years of software testing experienceFamiliarity withExperience testing complexBachelor’s degree in a relevant fieldNice If You HaveMilitary cyber experience

Required

5+ years of software testing experience, with exposure to web testing frameworks such as 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.
Hands-on experience writing or manipulating SQL (or SQL-like) queries to interact with relational/non-relational databases.
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.
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.

Benefits

Dental
Vision
Tuition
Life Insurance

Company

Two Six Technologies

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