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TCS

Principal Software Engineer

Huntsville, AL

$133K - $178K/yr

Huntsville, Alabama, United States TCS is searching for a Principal Software Engineer to join our ... The Principal Software Engineer will be responsible for understanding, implementing, and testing ...

TCS

Principal Software Engineer

Huntsville, AL

$133K - $178K/yr

Huntsville, Alabama, United States TCS is searching for a Principal Software Engineer to join our ... The Principal Software Engineer will be responsible for understanding, implementing, and testing ...

TCS

Senior Principal Software Engineer

Huntsville, AL

$123K - $170K/yr

Huntsville, Alabama, United States TCS is searching for a Senior Principal Software Engineer to ... testing both existing and new capabilities and algorithms, which include complex mathematics and ...

TCS

Senior Principal Software Engineer

Huntsville, AL

$123K - $170K/yr

Huntsville, Alabama, United States TCS is searching for a Senior Principal Software Engineer to ... testing both existing and new capabilities and algorithms, which include complex mathematics and ...

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As of Jun 10, 2026, the average hourly pay for freelance tcs software testing in the United States is $43.50, according to ZipRecruiter salary data. Most workers in this role earn between $33.41 and $52.40 per hour, depending on experience, location, and employer.
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Infographic showing various Freelance Tcs Software Testing job openings in the United States as of June 2026, with employment types broken down into 99% Full Time, and 1% Part Time. Highlights an 93% Physical, 2% Hybrid, and 5% Remote job distribution, with an average salary of $90,490 per year, or $43.5 per hour.
Principal Software Engineer

Principal Software Engineer

TCS

Huntsville, AL

$133K - $178K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Posted 22 hours ago

Job description

Clearances Required: Active DoD Secret

Location: Huntsville, Alabama, United States

Job Description

TCS is searching for a Principal Software Engineer to join our strong team of Engineers supporting our Ground-based Midcourse Defense (GMD) customer in Huntsville, AL. The GMD program is a portion of the Missile Defense Agency's (MDA) system to protect the US and our allies from ballistic missile attacks. The selected candidate will use modern tools to further the development and sustainment of the GMD system.

This is an in-office position. Remote work is not available.

Role:

The selected Principal Software Engineer responsibilities will include the support of the GMD Weapons System (GWS) program as an individual contributor on the GMD Fire Control (GFC) product.

Essential Functions:

  • The Principal Software Engineer will be responsible for understanding, implementing, and testing both existing and new capabilities and algorithms, which include complex mathematics and physics-based solutions, that directly support GWS capabilities on behalf of the Missile Defense Agency (MDA).
  • As a Principal Software Engineer on the GFC team, you will be part of a team that writes the software (currently ~1.5 million lines of code) that evaluates and manages the threat scene for the missile defense system that protects the US.
  • The selected candidate should thrive in a fast-paced work environment with high expectations, significantly diverse assignments, and collaborative/teams comprised of all experience levels.

Basic Qualifications:

  • Bachelors Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline preferred from an accredited university and 5 years of related work experience, or a Master's Degree and 3 years of related work experience, or 1 year of related work experience with a PhD.
  • Recent experience developing software in C++ or Java or Ada
  • Willingness to become proficient with Ada software development
  • Applicants must possess good communication skills.
  • Applicants must demonstrate ability to think critically and capture concepts in work products, presentations, and discussions.
  • Capable of working both independently and within a team environment.
  • Must be able to support an in-person / closed-area work environment.
  • Ability and willingness to travel up to 10% of the time to support business needs.
  • Applicants must have a current active in-scope DoD-issued Secret security clearance at the time of application, which is required to start.

Preferred Qualifications:

  • Highly experienced with Linux, scripting, and operations
  • Recent MATLAB and Python experience
  • Experience on a large-scale missile defense system like GMD.
  • Advanced degree or strong background in Mathematics or Physics
  • Battle Management or Fire Control experience.
  • Experience with Agile Project Management tools (Jira/Confluence) and DevSecOps tools and methods (Jenkins, Ansible, Git/Gitlab) of continuous integration/continuous delivery and deployment (CI/CD) automation.

Benefits:

  • Highlights of our benefits include BC/BS Health, Dental, Vision, 401(k) match, Profit Sharing, Flexible Time Off, STD/LTD/Life Insurance, Referral Bonuses, professional development reimbursement, vacation, sick leave, and maternity/paternity leave.

Apply online or visit us at www.tcs-inc.com/careers

TCS, Inc. is an EEO Employer.

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