Job Summary

The Software Development Engineer in Test (SDET) is responsible for ensuring the quality, reliability, and performance of Yunex Traffic software products and intelligent transportation solutions through the planning, development, execution, and documentation of testing activities. This role partners closely with Product Management, Software Development, Systems Engineering, and Project Management teams to verify requirements, develop test strategies, identify defects, and support continuous improvement throughout the product development lifecycle.

The SDET analyzes requirements, develops and executes manual and automated test cases, validates software functionality, participates in design and architecture reviews, and supports the delivery of high-quality products that meet customer and regulatory requirements. The role contributes to product quality standards, development processes, and testing methodologies that support Yunex Traffic's traffic management, mobility, and intelligent transportation systems solutions.

About the work

Our SDETs write the automated tests that let the team ship with confidence, but automation alone isn’t enough — manual and exploratory testing still catch what scripts can’t, and knowing when to lean on each is part of the job. Here are some real examples of the work:

• Evolve and maintain our Playwright-based TypeScript automation framework, using AI-assisted development practices to improve productivity, quality, and maintainability.
• Develop and maintain automated test suites for our microservice-based, cloud-native architecture, using AI to assist with test case design, implementation, refactoring, and maintenance.
• Create and maintain automated UI and microservice API test frameworks.
• Design, execute, and maintain manual test cases and exploratory testing activities, and identify which of them are good candidates for automation.
• Turn test results into automated reports and quality insights that development teams and management stakeholders can act on.
• Evolve and maintain our GitLab CI/CD pipelines for automated smoke and regression testing.
• Own and continuously improve the QA process so we maintain full coverage as the product grows.

About you

We’re looking for a senior candidate with strong, hands-on experience developing automated tests for single-page browser applications - designing UI, end-to-end, integration, and regression tests with Playwright, and building automated API test cases with tools such as Postman or REST-assured. You’re comfortable automating test cases in TypeScript, JavaScript, or Python, and you’ve worked within agile testing practices, including TDD/BDD, with automated tests wired into CI/CD pipelines such as GitHub, GitLab, or Jenkins. You know how to evaluate test coverage and results, define new test cases to close the gaps, and produce quality reports people actually use. You’re well-versed in test strategy, test stages, and standards spanning integration, regression, UI, and component testing. It’s a plus if you’ve used AI-assisted engineering tools to develop, maintain, review, or improve automated test frameworks and test cases - this role leans on that kind of practice regularly.

Key Responsibilities

• Develop, execute, and maintain manual and automated test cases for software products and integrated transportation solutions.
• Analyze product requirements and specifications to define comprehensive test strategies and test coverage.
• Verify and validate requirements to ensure completeness, consistency, traceability, and testability.
• Participate in design reviews and technical discussions to identify quality risks and potential design issues early in the development lifecycle.
• Perform functional, integration, system, regression, and performance testing activities.
• Investigate, reproduce, document, and track software defects through resolution.
• Collaborate with Product Managers, Software Engineers, Systems Engineers, and Project Managers to improve product quality and release readiness.
• Support continuous integration and automated testing initiatives.
• Analyze customer-reported issues and feedback to identify trends and quality improvements.
• Develop and maintain test documentation, test reports, and quality metrics.
• Contribute to the improvement of testing methodologies, development processes, and quality assurance standards.
• Coordinate and track assigned testing activities and deliverables.

Core competencies

• Test strategy & planning (coverage, acceptance, traceability to requirements; functional & non-functional)
• Test design & automation (framework selection, performance/security/resilience testing)
• Defect triage & quality metrics (failure analysis, reliability reporting)
• Systems integration & build; service acceptance; incident/problem management for operations readiness

KSAs

• Knowledge: SWEBOK testing/process/quality; SFIA testing/non-functional testing, service acceptance
• Skills: Design test suites, automate pipelines, instrument/monitor systems, analyze results for continuous improvement
• Abilities: Analytical rigor, cross-team collaboration (Dev/Ops/Product), communicating risk and residual defects

Minimum Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Electrical Engineering, Computer Engineering, or related technical discipline.
• 3+ years of software testing, quality engineering, or software development experience.
• Experience with test automation frameworks and scripting languages.
• Experience with Agile software development methodologies.
• Knowledge of software development lifecycle (SDLC) and quality assurance best practices.
• Experience with defect tracking, requirements management, and test management tools.
• Strong analytical, troubleshooting, and problem-solving skills.
• Experience working with embedded systems, intelligent transportation systems (ITS), traffic management software, or industrial control systems preferred.

Physical Demands

The physical demands described here are representative of those that must be met to perform the essential functions of this job in compliance with ADA and OSHA guidelines.

• Stationary Position: Must be able to remain in a stationary position for extended periods of time, while performing office‑based tasks such as working at a computer, analyzing data, or preparing documentation.
• Movement / Traversal: Must be able to occasionally move about the office to access files, office equipment, and meeting spaces.
• Operation of Equipment: Constantly operates a computer and standard office productivity machinery (e.g., printers, scanners, measurement devices). Tasks may include handling tools or diagnostic devices in an office/lab environment.
• Positioning / Reaching: Occasionally positions self to access low or high areas (e.g., bending or reaching to retrieve equipment or inspect components). Reaching at or below shoulder level is typical; overhead reaching may occur occasionally.
• Lifting / Carrying: May occasionally lift and move equipment, laptops, or tools typically up to 25 lbs.
• Visual Requirements: Must be able to read screens, observe instruments, and perform detailed visual inspections when needed.
• Communication: Must be able to effectively communicate with team members, clients, and stakeholders through speech and written documentation.

Working Conditions

Work is primarily performed in a remote or office environment. May require occasional travel for customer support or site visits. Participation in after-hours or on-call support rotations may be required. Interaction with customers, vendors, and internal teams across multiple locations and time zones. Individuals with a disability who desire reasonable accommodation can contact the EHS Professional.

How do I apply?

We can only accept online applications. Click the “Apply Now” button below to submit your application.

About Us:

We are a global leader in intelligent transport systems with more than 3,500 passionate employees who pioneer, develop, create, install and maintain innovative road traffic and mobility solutions all over the world. We make our roads smarter, safer and greener. The work we do enables cities, highways authorities and infrastructure operators to create a new world of mobility and makes cities more livable for everyone. Our solutions range from traffic lights, tolling solutions and tunnel management to software, AI applications and the intelligent networking of all road users. Become a Traffic Transformer and help us to continue transforming towns and cities all over the world.

Our Commitment:

At Yunex Traffic, the uniqueness of our people is our strength. Our people are at the heart of what we do and every voice, perspective and contribution is valued. The future of mobility needs people who think down different tracks, and we empower our people to transform cities all over the world. Join us and make a difference too.

Why Yunex Traffic?

• Opportunity for professional and personal growth with a dynamic team.
• Competitive compensation.
• Excellent health, vision, and dental plans.
• Life Insurance and Disability coverage.
• Competitive 401k plan with Employer matching.
• Educational assistance is available.
• Career development and Product Training.

Qualified Applicants must be legally authorized for employment in the United States. Qualified Applicants will not require employer sponsored work authorization now or in the future for employment in the United States.

Equal Employment Opportunity Statement Yunex Traffic is an Equal Opportunity and Affirmative Action Employer encouraging diversity in the workplace. All qualified applicants will receive consideration for employment without regard to their race, color, creed, religion, national origin, citizenship status, ancestry, sex, age, physical or mental disability unrelated to ability, marital status, family responsibilities, pregnancy, genetic information, sexual orientation, gender expression, gender identity, transgender, sex stereotyping, order of protection status, protected veteran or military status, or an unfavorable discharge from military service, and other categories protected by federal, state or local law.