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Senior Software Engineer In Test Jobs in Lafayette, CO

Quantix

C# Developer in Test (SDET)

Denver, CO · On-site

$51.50 - $66.50/hr

... (SDET) with a solid QA background and experience in automation development to join their team. Responsibilities : • QA Automation experience - experience creating automation, not just running ...

Quantix

SDET

Denver, CO · On-site

$51.50 - $66.50/hr

Our client in the Denver, Colorado area is looking for a SDET to join their team on a drect hire basis. This person will be responsible for designing, building, and executing automated tests.

GliaCell Technologies

Senior Software Engineer

Aurora, CO · On-site

$170K - $260K/yr

We will immerse you in the latest technologies. * We will develop and support your own personalized ... Reviews and tests software components for adherence to the design requirements and documents test ...

Sovrn

Software Developer in Test

Boulder, CO · On-site +1

$51.75 - $67/hr

... (SDET) your primary focus will be to aid in supporting the sovrn development teams by building and supporting test automation and tools. You will provide test automation guidance to developers ...

Kharon

Senior Software Engineer

Denver, CO · On-site

$160K - $200K/yr

This role requires in-office attendance at least 3 days a week. RESPONSIBILITIES: * Design ... Write automated tests and contribute to a culture of code quality - producing pull requests that ...

OrthoFi Inc.

Senior Software Engineer

Denver, CO · On-site

$130 - $170/hr

At OrthoFi, we're not just another player in the orthodontic industry - we're the driving force ... Actively integrate AI tools (e.g., Claude, GitHub Copilot) to automate design, test generation, and ...

Huck Adventures

Senior Software Engineer

Boulder, CO · On-site

$137K - $180K/yr

Current needs include high-impact projects in security and core data infrastructure work helping to ... Design, develop, test, deploy, maintain, and enhance networking software solutions. * Manage ...

Huck Adventures

Senior Software Engineer

Boulder, CO · On-site

$137K - $180K/yr

Current needs include high-impact projects in security and core data infrastructure work helping to ... Design, develop, test, deploy, maintain, and enhance networking software solutions. * Manage ...

OrthoFi, Inc.

Senior Software Engineer

Denver, CO · On-site

$130K - $170K/yr

Join us in our quest to transform the orthodontic landscape - where innovation meets dedication ... Actively integrate AI tools (e.g., Claude, GitHub Copilot) to automate design, test generation, and ...

Otter, LLC

Senior Software Engineer

Boulder, CO · On-site

$90K - $120K/yr

Current needs include high-impact projects in security and core data infrastructure work helping to ... Design, develop, test, deploy, maintain, and enhance networking software solutions. * Manage ...

Otter, LLC

Senior Software Engineer

Boulder, CO · On-site

$90K - $120K/yr

Current needs include high-impact projects in security and core data infrastructure work helping to ... Design, develop, test, deploy, maintain, and enhance networking software solutions. * Manage ...

ApplyMint

Senior Software Engineer

Denver, CO · On-site

$120 - $190/hr

Senior Software Engineer Location: San Francisco, CA or Denver, CO (Hybrid, 3 days/week). Salary: $120k-$190k + equity. Full-time. Offstream is building the infrastructure for the environmental ...

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Showing results 21-40

All JobsSoftware Engineer In Test JobsSenior Software Engineer In Test JobsSenior Software Engineer In Test Jobs in Lafayette, CO

Senior Software Engineer In Test information

See Lafayette, CO salary details

$23.4K

$130.7K

$170.2K

How much do senior software engineer in test jobs pay per year?

As of Aug 11, 2026, the average yearly pay for senior software engineer in test in Lafayette, CO is $130,731.00, according to ZipRecruiter salary data. Most workers in this role earn between $115,000.00 and $149,400.00 per year, depending on experience, location, and employer.

What is the difference between Senior Software Engineer In Test vs Software Development Engineer in Test?

AspectSenior Software Engineer In TestSoftware Development Engineer in Test
CredentialsBachelor's in CS or related field, experience in testing and automationBachelor's in CS or related field, strong coding skills, experience in testing
Work EnvironmentDesigning test strategies, automation frameworks, collaborating with development teamsDeveloping test tools, writing automated tests, integrating testing into CI/CD pipelines
Industry UsageCommon in tech companies, especially in QA and testing teamsWidely used in software development companies focusing on automation

The main difference is that Senior Software Engineer In Test often focuses on testing strategy and automation leadership, while Software Development Engineer in Test emphasizes developing testing tools and automation code. Both roles require strong coding skills and testing experience, but their focus areas differ slightly within the testing lifecycle.

What are some typical challenges a senior software engineer in test faces when designing automated testing frameworks?

Senior Software Engineers in Test often encounter challenges such as integrating automated tests with complex, evolving codebases and ensuring tests remain reliable as features change. Balancing thorough test coverage with execution speed, especially in continuous integration environments, is another common concern. Additionally, collaborating with both development and QA teams to align on testing strategies and maintaining documentation for test frameworks are key responsibilities that require strong communication and adaptability.

What is a senior software engineer in test?

Senior Software Engineers in Test are experienced professionals who design, develop, and implement automated testing frameworks and tools to ensure the quality and reliability of software products. They work closely with development and QA teams to identify testing needs, create robust test plans, and write automated scripts that validate software functionality. In addition to hands-on coding, they often mentor junior engineers, drive process improvements, and contribute to the overall testing strategy of the organization.

What are the key skills and qualifications needed to thrive as a senior software engineer in test, and why are they important?

To thrive as a Senior Software Engineer in Test, you need a deep understanding of software development, test automation frameworks, and a background in computer science or a related field. Mastery of tools like Selenium, Jenkins, JUnit, and experience with CI/CD systems, as well as relevant certifications such as ISTQB, are typically required. Strong analytical thinking, problem-solving abilities, and effective communication skills set top candidates apart in this role. These skills are crucial for ensuring robust, scalable, and reliable software delivery in complex technical environments.
What cities near Lafayette, CO are hiring for Senior Software Engineer In Test jobs? Cities near Lafayette, CO with the most Senior Software Engineer In Test job openings:
Senior Software Engineer In Test jobs near you
Infographic showing various Senior Software Engineer In Test job openings in Lafayette, CO as of August 2026, with employment types broken down into 1% Internship, 84% Full Time, 11% Part Time, and 4% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $130,731 per year, or $62.9 per hour.

Senior Software Engineer - Test Automation & Infrastructure

CesiumAstro

Westminster, CO • On-site

$133K - $160K/yr

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 24 days ago

Job description

Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State.
At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team.
We are seeking a Senior Software Engineer - Test Automation & Infrastructure to develop and scale automated test systems supporting the validation of complex RF and satellite communications payloads. This role sits at the intersection of software development and hardware test engineering, building robust automation frameworks and infrastructure that ensure reliable, repeatable system validation.
You will play a key role in improving product quality, accelerating development cycles, and enabling seamless integration across hardware and software systems.
KEY RESPONSIBILIES
  • Develop automated test software to control laboratory instrumentation such as signal generators, spectrum analyzers, power supplies, and network equipment.
  • Implement and maintain test sequences for both system-level and component-level validation.
  • Support integration and execution of tests across hardware and software environments.
  • Debug and troubleshoot test failures across software, hardware, and interface layers.
  • Ensure test systems produce accurate, repeatable, and reliable results.
  • Design and implement software for device under test (DUT) control, including command handling, telemetry ingestion, and state management.
  • Build reusable automation frameworks and scripts to streamline test development.
  • Apply best practices in software engineering, including modular design, version control, and code reviews.
  • Reduce manual intervention through efficient and scalable automation solutions.
  • Develop tools and utilities to enhance test engineering productivity.
  • Design and maintain scalable test automation infrastructure supporting multiple configurations and environments.
  • Enhance existing frameworks for improved reliability, maintainability, and scalability.
  • Integrate automated testing into CI/CD pipelines where applicable.
  • Standardize tooling and infrastructure across teams to ensure consistency.
  • Contribute to shared libraries and reusable automation components.
  • Act as a technical bridge between software and test engineering teams.
  • Collaborate with systems, hardware, and software teams to ensure system testability.
  • Support integration of new components into existing test environments.
  • Translate system requirements into effective automation strategies.
  • Participate in design and integration reviews to ensure validation readiness.
  • Identify and implement improvements to test automation architecture and codebase.
  • Contribute to the evolution of next-generation test frameworks and infrastructure.
  • Drive simplification and standardization to reduce development cycle time.
  • Advocate for scalable, maintainable, and reusable design principles.
  • Continuously improve test processes, tools, and methodologies.

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS
  • Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience).
  • 5-8 years of experience in software engineering, test automation, or related roles.
  • Experience developing software that interfaces with hardware systems or laboratory instrumentation.
  • Strong experience in test automation framework and infrastructure development.
  • Proficiency in Python, C/C++, or similar.
  • Familiarity withGit, CI/CD tools, automated test frameworks.
  • Hardware/software integration and system-level testing expertise.
  • Instrumentation control and data acquisition knowledge.
  • Solid understanding of software development lifecycle (SDLC) and best practices.
  • Proven debugging and root cause analysis skills across integrated systems.
  • Ability to design scalable systems and think architecturally.
  • Strong analytical skills with attention to detail.
  • Ability to manage multiple priorities in a fast-paced environment.
  • Effective communication skills across technical and non-technical audiences.
  • Comfortable working in a laboratory environment with electronic test equipment.

$133,000 - $160,000 a year
CesiumAstro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate's work experience, education/training, and key skills. Full-time employment offers include company stock options and a generous benefits package including health, dental, vision, HSA, FSA, life, disability and retirement plans.
CesiumAstro is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law.
Please note: CesiumAstro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to CesiumAstro team members will be considered property of CesiumAstro, and we will not be obligated to pay any referral fees.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

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