• Expertini Resume Scoring: Our Semantic Matching Algorithm evaluates your CV/Résumé before you apply for this job role.
United States Jobs Expertini

Mid/Senior Software Development Engineer in Test Job Opening In Colorado Springs – Now Hiring LMI


Job description

Overview

LMI is seeking a skilled Software Development Engineer in Test (SDET) (Mid/Senior) 

to build and scale automated testing capabilities across a distributed modeling and simulation system.

The SDET will work alongside developers, DevOps, and domain experts to ensure that deliverables are reliable, secure, and validated at all layers: from low-level services to user-facing applications.

LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed.

Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.


Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively.

With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors—helping agencies navigate complexity and outpace change.

Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and drive lasting value.

Responsibilities

This role emphasizes test automation, system integration validation, and reliability engineering.

You’ll own test strategy, frameworks, and tooling to continuously improve coverage, speed, cycle times, and confidence in our software releases.

Space or missile defense domain knowledge is not required but is considered a plus.

Familiarity with satellite operations, communications, orbital mechanics, ground systems, or defense systems will help you perform technical validation.

  • Design, implement, and maintain automated test frameworks using pytest, Playwright, and other related tools.
  • Develop broad (end-to-end/UI) and narrow (API/service) integration tests across distributed services and webapps.
  • Leverage Test-containers, k8s, and CI/CD pipelines to provision reproducible, ephemeral test environments.
  • Build and maintain characterization tests (Golden Master Testing).
  • Build and maintain data-driven validation (schema conformance, contract tests, and/or property-based tests).
  • Drive adoption of testability best practices in system designs (dependency isolation, logging, observability hooks/events).
  • Support performance, resilience, and security testing as part of the quality strategy.
  • Contribute to ongoing Certificate to Field (CTF) processes.
  • Partner with DevOps to integrate automated tests into our GitLab pipelines.
  • Contribute to post-mortems, root cause analysis, and continuous improvement of reliability.
  • Support testing in classified and air-gapped environments with hardened tooling.
  • Qualifications

    Must Have Requirements:

  • Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience.
  • 5+ year's experience in applicable skills.
  • Strong programming skills in Python (pytest, Playwright, httpx, etc.); bonus if comfortable in Go, Rust, or TypeScript.
  • Proven experience building automated test frameworks for complex distributed or cloud-native systems.
  • Hands-on experience with Kubernetes and test orchestration in CI/CD.
  • Familiarity with service integration testing, contract testing, and mocking/virtualization tools.
  • Knowledge of performance, load, or chaos testing approaches and tools (e.g., Locust, k6, Toxiproxy, LitmusChaos, ChaosMesh).
  • Excellent problem-solving, debugging, and systems thinking skills.
  • Strong collaboration and communication experience with development, QA, and operations teams.
  • Eligible for DoD Top Secret SCI clearance
  • Preferred Requirements:

  • Master's degree in relevant field
  • Space domain knowledge (satellite ground systems, orbital dynamics, RF links, mission operations, or Space Force/DoD programs).
  • Experience with secure software development (STIG, FIPS, and/or FedRAMP).
  • Exposure to high-performance computing (HPC), simulation frameworks, or war-gaming environments.
  • Active security clearance 
  • Target salary range: $99,162 - $189,108.

    Final compensation will be determined by a variety of factors including but not limited to your skills, experience, education, and/or certifications.

    Options

    Sorry the Share function is not working properly at this moment.

    Please refresh the page and try again later.

    Share on your newsfeed



    LMI is an Equal Opportunity Employer.

    LMI is committed to the fair treatment of all and to our policy of providing applicants and employees with equal employment opportunities.

    LMI recruits, hires, trains, and promotes people without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, pregnancy, disability, age, protected veteran status, citizenship status, genetic information, or any other characteristic protected by applicable federal, state, or local law.

    If you are a person with a disability needing assistance with the application process, please contact

    Colorado Residents: In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation.

    You will not be penalized for redacting or removing this information.

    Need help finding the right job?

    We can recommend jobs specifically for you!

    Software Powered by iCIMS

    Required Skill Profession

    Computer Occupations


    • Job Details

    Related Jobs

    Conservice hiring Senior Software Development Engineer in Test Job in Logan, Utah, United States
    Conservice
    Logan, Utah, United States
    Epam hiring Senior Software Development Engineer in Test Job in remote, us, remote, us, United States
    Epam
    remote, us, remote, us, United States
    Apple hiring Senior Software Development Engineer in Test Job in Cupertino, CA, United States
    Apple
    Cupertino, CA, United States
    Apple hiring Senior Software Development Engineer in Test Job in Cupertino, CA, United States
    Apple
    Cupertino, CA, United States
    Apple hiring Senior Software Development Engineer in Test Job in Cupertino, CA, United States
    Apple
    Cupertino, CA, United States
    Apple hiring Senior Software Development Engineer in Test Job in Austin, TX, United States
    Apple
    Austin, TX, United States
    Apple hiring Senior Software Development Engineer in Test Job in Austin, TX, United States
    Apple
    Austin, TX, United States
    Apple hiring Senior Software Development Engineer in Test Job in Austin, TX, United States
    Apple
    Austin, TX, United States
    FlexTrade hiring Software Development Engineer in Test Job in Milwaukee, Wisconsin, United States
    FlexTrade
    Milwaukee, Wisconsin, United States
    DTCC hiring Software Development Engineer in Test Job in Dallas, Texas, United States
    DTCC
    Dallas, Texas, United States
    Confidential hiring Software Development Engineer In Test Job in Los Angeles, California, United States
    Confidential
    Los Angeles, California, United States
    Epam hiring Software Development Engineer in Test Job in remote, us, remote, us, United States
    Epam
    remote, us, remote, us, United States
    Advantive hiring Software Development Engineer in Test Job in , NEW ZEALAND - REMOTE, United States
    Advantive
    , NEW ZEALAND - REMOTE, United States
    Apple hiring Software Development Engineer - In Test Job in San Diego, CA, United States
    Apple
    San Diego, CA, United States
    Apple hiring Software Development Engineer in Test Job in Cupertino, CA, United States
    Apple
    Cupertino, CA, United States
    Apple hiring Software Development Engineer in Test Job in Cupertino, CA, United States
    Apple
    Cupertino, CA, United States
    Apple hiring Software Development Engineer in Test Job in San Diego, CA, United States
    Apple
    San Diego, CA, United States
    Apple hiring Software Development Engineer - In Test Job in San Diego, CA, United States
    Apple
    San Diego, CA, United States
    Apple hiring Software Development Engineer - In Test Job in San Diego, CA, United States
    Apple
    San Diego, CA, United States
    Apple hiring Software Development Engineer in Test Job in Cupertino, CA, United States
    Apple
    Cupertino, CA, United States
    Apple hiring Software Development Engineer in Test Job in Cupertino, CA, United States
    Apple
    Cupertino, CA, United States
    Apple hiring Software Development Engineer in Test Job in San Diego, CA, United States
    Apple
    San Diego, CA, United States
    Fiserv hiring Software Development Engineer in Test Job in Lincoln, NE, United States
    Fiserv
    Lincoln, NE, United States
    Fiserv hiring Software Development Engineer in Test Job in Lincoln, NE, United States
    Fiserv
    Lincoln, NE, United States
    Allegion hiring Software Development Engineer in Test Job in Golden, CO, United States
    Allegion
    Golden, CO, United States
    Akamai Technologies, Inc. hiring Software Development Engineer in Test Job in , , United States
    Akamai Technologies, Inc.
    , , United States
    Akamai Technologies, Inc. hiring Software Development Engineer in Test Job in , , United States
    Akamai Technologies, Inc.
    , , United States
    Akamai Technologies, Inc. hiring Software Development Engineer in Test Job in , , United States
    Akamai Technologies, Inc.
    , , United States
    Apple hiring Software Development Engineer in Test Job in Cupertino, CA, United States
    Apple
    Cupertino, CA, United States
    Apple hiring Software Development Engineer in Test Job in Cupertino, CA, United States
    Apple
    Cupertino, CA, United States
    Apple hiring Software Development Engineer in Test Job in San Diego, CA, United States
    Apple
    San Diego, CA, United States
    Fiserv hiring Software Development Engineer in Test Job in Lincoln, NE, United States
    Fiserv
    Lincoln, NE, United States

    Unlock Your Mid Senior Potential: Insight & Career Growth Guide


    Real-time Mid Senior Jobs Trends (Graphical Representation)

    Explore profound insights with Expertini's real-time, in-depth analysis, showcased through the graph here. Uncover the dynamic job market trends for Mid Senior in Colorado Springs, United States, highlighting market share and opportunities for professionals in Mid Senior roles.

    189250 Jobs in United States
    189250
    762 Jobs in Colorado Springs
    762
    Download Mid Senior Jobs Trends in Colorado Springs and United States

    Are You Looking for Mid/Senior Software Development Engineer in Test Job?

    Great news! is currently hiring and seeking a Mid/Senior Software Development Engineer in Test to join their team. Feel free to download the job details.

    Wait no longer! Are you also interested in exploring similar jobs? Search now: .

    The Work Culture

    An organization's rules and standards set how people should be treated in the office and how different situations should be handled. The work culture at LMI adheres to the cultural norms as outlined by Expertini.

    The fundamental ethical values are:

    1. Independence

    2. Loyalty

    3. Impartiapty

    4. Integrity

    5. Accountabipty

    6. Respect for human rights

    7. Obeying United States laws and regulations

    What Is the Average Salary Range for Mid/Senior Software Development Engineer in Test Positions?

    The average salary range for a varies, but the pay scale is rated "Standard" in Colorado Springs. Salary levels may vary depending on your industry, experience, and skills. It's essential to research and negotiate effectively. We advise reading the full job specification before proceeding with the application to understand the salary package.

    What Are the Key Qualifications for Mid/Senior Software Development Engineer in Test?

    Key qualifications for Mid/Senior Software Development Engineer in Test typically include Computer Occupations and a list of qualifications and expertise as mentioned in the job specification. The generic skills are mostly outlined by the . Be sure to check the specific job listing for detailed requirements and qualifications.

    How Can I Improve My Chances of Getting Hired for Mid/Senior Software Development Engineer in Test?

    To improve your chances of getting hired for Mid/Senior Software Development Engineer in Test, consider enhancing your skills. Check your CV/Résumé Score with our free Tool. We have an in-built Resume Scoring tool that gives you the matching score for each job based on your CV/Résumé once it is uploaded. This can help you align your CV/Résumé according to the job requirements and enhance your skills if needed.

    Interview Tips for Mid/Senior Software Development Engineer in Test Job Success

    LMI interview tips for Mid/Senior Software Development Engineer in Test

    Here are some tips to help you prepare for and ace your Mid/Senior Software Development Engineer in Test job interview:

    Before the Interview:

    Research: Learn about the LMI's mission, values, products, and the specific job requirements and get further information about

    Other Openings

    Practice: Prepare answers to common interview questions and rehearse using the STAR method (Situation, Task, Action, Result) to showcase your skills and experiences.

    Dress Professionally: Choose attire appropriate for the company culture.

    Prepare Questions: Show your interest by having thoughtful questions for the interviewer.

    Plan Your Commute: Allow ample time to arrive on time and avoid feeling rushed.

    During the Interview:

    Be Punctual: Arrive on time to demonstrate professionalism and respect.

    Make a Great First Impression: Greet the interviewer with a handshake, smile, and eye contact.

    Confidence and Enthusiasm: Project a positive attitude and show your genuine interest in the opportunity.

    Answer Thoughtfully: Listen carefully, take a moment to formulate clear and concise responses. Highlight relevant skills and experiences using the STAR method.

    Ask Prepared Questions: Demonstrate curiosity and engagement with the role and company.

    Follow Up: Send a thank-you email to the interviewer within 24 hours.

    Additional Tips:

    Be Yourself: Let your personality shine through while maintaining professionalism.

    Be Honest: Don't exaggerate your skills or experience.

    Be Positive: Focus on your strengths and accomplishments.

    Body Language: Maintain good posture, avoid fidgeting, and make eye contact.

    Turn Off Phone: Avoid distractions during the interview.

    Final Thought:

    To prepare for your Mid/Senior Software Development Engineer in Test interview at LMI, research the company, understand the job requirements, and practice common interview questions.

    Highlight your leadership skills, achievements, and strategic thinking abilities. Be prepared to discuss your experience with HR, including your approach to meeting targets as a team player. Additionally, review the LMI's products or services and be prepared to discuss how you can contribute to their success.

    By following these tips, you can increase your chances of making a positive impression and landing the job!

    How to Set Up Job Alerts for Mid/Senior Software Development Engineer in Test Positions

    Setting up job alerts for Mid/Senior Software Development Engineer in Test is easy with United States Jobs Expertini. Simply visit our job alerts page here, enter your preferred job title and location, and choose how often you want to receive notifications. You'll get the latest job openings sent directly to your email for FREE!