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Senior Software Development Engineer In Test Jobs in Highlands Ranch, CO

Senior Software Engineer, Level 3

Littleton, CO · On-site

$123.60K - $163K/yr

Lockheed Martin is leading the way in hypersonic missile development and we want you to be a part ... Support the CSP Flight Software development, integration, and test of deliverable flight software ...

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Senior Software Development Engineer In Test information

See Highlands Ranch, CO salary details

$23.6K

$131.8K

$171.6K

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

As of May 30, 2026, the average yearly pay for senior software development engineer in test in Highlands Ranch, CO is $131,790.00, according to ZipRecruiter salary data. Most workers in this role earn between $116,000.00 and $150,600.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Senior Software Development Engineer In Test, and why are they important?

To thrive as a Senior Software Development Engineer In Test, you need advanced programming skills, deep knowledge of software testing methodologies, and a bachelor's degree in computer science or a related field. Expertise with automation frameworks (such as Selenium, Cypress, or Appium), CI/CD tools, and scripting languages is typically required, along with relevant certifications like ISTQB. Strong analytical thinking, problem-solving, and effective communication are crucial soft skills for collaborating with cross-functional teams and driving quality initiatives. These capabilities ensure rigorous test coverage, faster release cycles, and high-quality software products.

How does a Senior Software Development Engineer In Test typically collaborate with development and product teams to ensure software quality?

As a Senior Software Development Engineer In Test (SDET), you will work closely with both development and product teams throughout the software development lifecycle. This includes participating in design and requirements discussions to identify potential test cases early, contributing to test automation strategies, and providing feedback on testability and quality risks. SDETs often pair with developers to review code, co-create test plans, and triage bugs together, ensuring that testing is fully integrated into the CI/CD pipeline. Effective communication and cross-team collaboration are essential for proactively identifying issues and maintaining high software quality standards.

What does a Senior Software Development Engineer in Test (SDET) do?

A Senior Software Development Engineer in Test (SDET) is responsible for designing, developing, and maintaining automated test frameworks and tools to ensure the quality and reliability of software products. They work closely with development and QA teams to identify test requirements, create robust test cases, and integrate automated tests into the CI/CD pipeline. In addition to coding and scripting, Senior SDETs mentor junior team members, analyze test results, and help troubleshoot complex issues to continuously improve software quality. Their expertise bridges the gap between development and testing, ensuring both speed and quality in software releases.

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

AspectSenior Software Development Engineer In TestSoftware Development Engineer In Test
ExperienceTypically 5+ years in testing and developmentEntry to mid-level, 1-3 years experience
ResponsibilitiesDesigns complex test frameworks, mentors juniors, leads testing initiativesDevelops test cases, automates tests, executes testing tasks
Skills & CertificationsAdvanced coding, automation, testing tools, leadership skillsProgramming, automation, testing tools
Work EnvironmentCollaborates with cross-functional teams, often in Agile settingsWorks closely with developers, focuses on automation and manual testing

In summary, a Senior Software Development Engineer In Test has more experience, leadership responsibilities, and strategic testing roles compared to a Software Development Engineer In Test, who primarily focuses on developing and executing tests.

What are popular job titles related to Senior Software Development Engineer In Test jobs in Highlands Ranch, CO? For Senior Software Development Engineer In Test jobs in Highlands Ranch, CO, the most frequently searched job titles are:
What job categories do people searching Senior Software Development Engineer In Test jobs in Highlands Ranch, CO look for? The top searched job categories for Senior Software Development Engineer In Test jobs in Highlands Ranch, CO are:
What cities near Highlands Ranch, CO are hiring for Senior Software Development Engineer In Test jobs? Cities near Highlands Ranch, CO with the most Senior Software Development Engineer In Test job openings:
Infographic showing various Senior Software Development Engineer In Test job openings in Highlands Ranch, CO as of May 2026, with employment types broken down into 98% Full Time, 1% Part Time, and 1% Contract. Highlights an 85% Physical, 10% Hybrid, and 5% Remote job distribution, with an average salary of $131,790 per year, or $63.4 per hour.

Software Development Engineer In Test, Sports Platform

bet365

Denver, CO • On-site

$100K - $135K/yr

Full-time

Posted 2 hours ago


Bet365 rating

9.7

Company rating: 9.7 out of 10

Based on 6 frontline employees who took The Breakroom Quiz

1st of 15 rated gambling companies


Job description

Company Description
At bet365, we're one of the world's leading online gambling companies, revolutionising the industry since 2000. Founded by Denise Coates CBE, we now employ over 9,000 people and serve over 100 million customers in 27 languages. Our focus on In-Play betting has solidified our market-leading position, offering an unmatched experience across 96 sports and 700,000 streaming events. With over 750 concurrent sporting fixtures at peak and more live sports streamed than anyone else in Europe, we handle over 6 billion HTTP requests daily and process more than 2 million bets per hour at peak.
We empower our employees to push boundaries and explore new ideas, cultivating a culture that celebrates and rewards creativity. This offers employees a wealth of opportunities for growth, giving them the opportunity to make a real impact in the world of online gambling. As a forward-thinking company, we're breaking new ground in software innovation too, redefining what's possible for our customers worldwide.
Job Description
As a Software Development Engineer in Test, you will design and implement automated test suites for complex systems that ensure quality assurance within our innovative platform. The teams operates as a full stack team who are in the process of a greenfield replacement of the platform using Go, React, and GCP.
Within our team, you will be part of a collaborative environment that focuses on delivering high-quality solutions to the business.
You will engage with cross-functional departments, including software development and Operations Engineering, to enhance our testing infrastructure and support seamless software delivery. You will ensure the quality and reliability of our Verification platform by designing and implementing automated test suites for complex systems. This involves developing and defining AI processes for test automation.
As we expand our presence in the rapidly growing US sports betting market, you will contribute to exciting projects that leverage innovative technologies and methodologies. We foster a culture of continuous learning and teamwork, encouraging you to explore new tools and techniques that enhance our capabilities and drive success.
The annual salary for this role will be between $100,000-$135,000.
This role is eligible for inclusion in the Company's hybrid working from home policy.
Qualifications
  • Proven experience in designing and implementing automated test suites for complex systems, with a focus on microservices and publish-subscribe architectures.
  • Experience using AI to automate testing effectively and efficiently.
  • Exceptional problem-solving skills, with a keen attention to detail.
  • Proven experience in programming languages such as C#, JavaScript, Typescript, Python, or Golang.
  • Effective communication skills, with the ability to collaborate across the software development and Operations Engineering departments.
  • Experience in developing and maintaining CI/CD pipelines to support efficient software delivery.
  • Familiarity with infrastructure and environment management tools such as Docker and Kubernetes.
  • Experience in mentoring and guiding junior team members in testing practices and strategies.
  • Familiarity with cloud platforms including Google Cloud, AWS or Azure equivalent.

Additional Information
  • Designing, developing, and maintaining end-to-end and integration automated test suites for complex systems, focusing on microservices and publish-subscribe architectures.
  • Collaborating with the software development and Operations Engineering to enhance and maintain a robust test infrastructure, that supports efficient software delivery.
  • Prioritizing manual test cases for automation, to ensure a streamlined testing process.
  • Engaging with stakeholders to understand project requirements and translating them into comprehensive test plans and automated test cases.
  • Reporting on test suites, to ensure they are integrated into pipelines for clear communication of status and performance metrics.
  • Applying best practices in the testing pyramid to ensure comprehensive test coverage at all levels, including unit, integration, and end-to-end testing.
  • Coordinating and prioritizing testing needs across multiple teams and stakeholders to align efforts and resources.
  • Participating in code reviews and providing constructive feedback to enhance code quality and testability.

bet365 provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.