Senior Level Software Test Engineer Jobs
Senior level software test engineer jobs place experienced engineers in charge of quality architecture decisions, test strategy ownership, and the cross-functional teams that deliver on them. Across 20% remote and hybrid opportunities, employers in Technology & Software, Aerospace & Defense, and Insurance, including Anduril, Shield AI, and Akamai Technologies, are hiring at this level now.
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Benefits
U.S.-based employees have access to medical, dental, and vision insurance, a 401(k) plan and company contribution, short-term and long-term disability coverage, basic life insurance, and wellbeing benefits, among others. U.S.-based employees also receive, per calendar year, up to 6 scheduled paid holidays. Additionally, eligible hourly/non-exempt and exempt employees accrue up to 112 hours of PTO based on years of service and may annually take up to 8 hours of paid volunteer time. Additional paid sick leave is also provided if required by state or local law.
Summary of Position:
The Software Integration & Test Engineer II prepares, configures, and validates the Test Equipment and automation frameworks used in satellite hardware testing. Ensures automation scripts and interfaces are accurate, reliable, calibrated, and standards-compliant with full traceability and necessary documentation.
Essential Functions:
- Develop and validate automation frameworks for test rack control
- Debug and resolve timing, synchronization, and execution issues
- Validate software interfaces with hardware instrumentation
- Author and execute automated regression suites for test equipment
- Collaborate with electrical/mechanical engineers to integrate rack automation
- Ensure logging, traceability, and auditability of all automated processes
- Identify complex problems and reviewing related information to develop and evaluate options and implement solutions
- Identify measures or indicators of system performance and the actions needed to improve or correct performance, relative to the goals of the system
- Determine how a system should work and how changes in conditions, operations, and the environment will affect outcomes
Competencies:
- Ensures Accountability
- Tech Savvy
- Communicates Effectively
- Values Differences
- Customer Focus
- Resourcefulness
- Drives Results
- Plans and Prioritizes
- Decision Quality
- Self-Development
Work Environment:
This position is based in a professional office setting and regularly utilizes workplace technology, including computers, smartphones, multifunction printers, cloud-based filing systems, and collaboration tools.
Physical Demands:
This role requires physical capabilities that support the successful execution of key responsibilities. The employee regularly engages in verbal and written communication with colleagues and clients to address project-related inquiries and must be able to convey accurate information clearly and efficiently. The position involves remaining seated at a workstation for approximately 75% of the time, with occasional movement throughout the office to access equipment, supplies, and shared resources. Daily tasks include consistent use of computers and standard office technology such as keyboards, printers, and multifunction devices. The role also involves transporting equipment boxes weighing up to 25 pounds within the building and to other offsite locations as needed for project support.
Required Education and Experience:
- Bachelor’s degree in Software, Computer, or Electrical Engineering
- 10+ years test automation/HIL systems experience
Qualifications
- 4+ years test automation/HIL systems experience
- 4+ years software and Windows Powershell/Linux bash shell proficiency
- Strong understanding of software development life cycle (SDLC) and testing methodologies
- Familiarity with version control systems such as Git and CI/CD
- Knowledge of performance testing and security testing techniques
- Strong proficiency in Linux server management, including shell scripting and system troubleshooting
- Hands-on experience with Docker for containerization and environment management
- Familiarity with Python and LabVIEW for test automation and hardware interfacing
- Experience with IP network protocols and configurations in a software integration context
- Familiarity with aerospace software validation standards
Preferred Qualifications
- Master’s in Computer/Electrical Engineering.
- Prior aerospace or avionics software I&T experience.
- Familiarity with NASA test documentation standards.
Other Requirements
- Onsite in Redmond, WA; lab presence required.
Occasional travel (50%).
AAP/EEO Statement:
3MD Inc. is an equal opportunity employer and does not discriminate based on gender, sex, age, race and color, religion, marital status, national origin, disability, sexual orientation, gender identity or expression, veteran status, or any other category that is protected by applicable law.
Other Duties:
Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.
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Who's Hiring



Top Industries Hiring
- Technology & Software10
- Aerospace & Defense2
- Insurance1
- Electronics & Hardware1
- Banking & Financial Services1
Senior Level Software Test Engineer Jobs: Frequently Asked Questions
How do I get a senior level software test engineer job?
Employers at this level look for engineers who can own end-to-end test strategy, not just execute test cases. Strong candidates demonstrate experience designing scalable automation frameworks, influencing engineering decisions upstream, and mentoring junior engineers. Contributions to CI/CD pipeline quality, cross-team collaboration, and a history of measurable defect reduction all signal readiness for senior level ownership.
Which companies hire senior level software test engineers?
Companies hiring senior level software test engineers right now include Anduril, Shield AI, and Akamai Technologies, based on current listings on Migrate Mate as of November 2026. Hiring at this level covers large technology firms, enterprise software companies, and regulated industries where product quality and release velocity both carry significant business weight.
Are there remote senior level software test engineer jobs?
Yes, and remote availability is strong at this experience level. About 20% of senior level software test engineer openings are remote or hybrid as of November 2026, reflecting how many engineering organizations treat senior-level quality roles as distributed-friendly. Fully on-site roles tend to concentrate in industries with strict compliance or hardware-dependent testing environments.
What makes a software test engineer role senior level?
A senior level software test engineer role is defined by scope and ownership rather than task execution. These engineers design the test architecture, set quality standards for the entire team, evaluate tooling decisions, and drive testing strategy from early requirements through release. They mentor mid-level and junior engineers, advocate for quality in product planning conversations, and are accountable for outcomes across the full delivery cycle.
Which industries hire the most senior level software test engineers?
Senior Level software test engineer roles concentrate in Technology & Software, Aerospace & Defense, and Insurance, based on current listings on Migrate Mate as of November 2026. These sectors tend to drive the most hiring at this level because they combine high release frequency, complex system dependencies, and strict reliability standards that require experienced engineers to own quality strategy rather than simply execute it.