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Software Development Engineer in Test (SDET)

TenMileSquareTechnologies

Arlington, VA, United States Remote permanent

Posted: January 8, 2026

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Quick Summary

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Job Description

Ten Mile Square Technologies is a high-end technology consulting firm based in the Northern Virginia area. Our customers routinely call upon us to solve some of the largest scale and hardest problems in computer science and software development. If you have a solid grounding in software engineering, continuous delivery, and computer science, and are looking for a career opportunity to grow and leverage those skills to the fullest while working on cutting edge technologies – Ten Mile Square is the place to be!

 

OVERVIEW

Ten Mile Square is looking for a talented Software Engineer in Test (SDET) who is passionate about technology to join our growing team of product, technology, and software professionals. The initial assignment for the new position is to develop a loan origination system for a financial services enterprise. The successful candidate will work with highly experienced team leads and have an opportunity to learn new technologies, while refining fundamental skills.

Salary (Base + Standard Bonus at plan): $149,500 ($130K + $19.5K).

JOB RESPONSIBILITIES

• Lead the test automation efforts for a loan origination system using Node, Apollo GraphQL, Angular, Camunda, and a suite of AWS components including but not limited to EKS, Lambda, S3, MSK, and Aurora.
• Collaborate with SDETs in the organization.
• Design test plans for the system
• Create automated end-to-end and contract tests
• Create a performance testing framework and run performance tests on the system being developed
• Direct junior test engineers in their automated and manual testing efforts
• Work with the product team to determine what constitutes an effectively tested system
• Contribute as member of an Agile team and promote Agile practices
• Proactively collaborate with the Ten Mile team on development and knowledge sharing
• Represent yourself and Ten Mile Square with integrity, expertise, and value
• Maintain the confidentiality of our clients on an ongoing basis
• Facilitate the hiring and onboarding of other Software Engineers in Test

• Expert in software development
• High proficiency with TypeScript 
• Expert in automated testing
• Working knowledge of SQL
• Working knowledge of at least one of the common frontend JavaScript frameworks (Angular, Ionic, React, Vue), preferably Angular
• Working knowledge of at least one end-to-end testing framework
• Experience with Selenium, Cypress or similar preferred
• Implementation of at least one load testing framework
• Experience or exposure to K6, JMeter or similar preferred
• Experience testing both backend and frontend components 
• Full software lifecycle participation: requirements to post-implementation 
• Linux command line 

More importantly, 

• Be passionate about what you do
• Demonstrated ability to learn new technologies and concepts quickly 
• Detail-oriented 
• High integrity and quality of work ethic 
• Self-motivated to proactively identify and solve problems 
• Excellent communication skills – within team and with clients 

EXCEPTIONAL PEOPLE DESERVE EXCEPTIONAL BENEFITS

Ten Mile Square Technologies benefits package currently includes:

• 100% company paid medical, dental, and vision insurance (including family)
• 100% company paid individual short- and long- term disability
• 100% company paid vision insurance
• 3% company contribution to 401(k)
• 15 days paid time off per year + 1 day/year up to 20 days
• 10 training days per year
• 8 company holidays + 2 personal days
• Individual performance-based quarterly cash incentive
• Combined individual and company based annual cash incentive
• Public transit reimbursement

Additional Details:

• Job Type: Full-time, not C2C
• Job Location: Remote, US based only

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