Senior Java/Spring Engineer — Hybrid (Playwright)

Vertage Inc.; Dearborn (MI); On-site; USD 96,000 - 152,000; Full time

Job summary

Vertage Inc. in Dearborn, MI is seeking a senior engineering contractor to design, build and test back-end Java and Spring Boot services, including APIs and microservices.

The role emphasizes quality engineering with load/performance scripting, Playwright automation, and secure, scalable architectures. You will collaborate with product owners, designers and architects to translate use cases into robust solutions, define test strategies, and tune performance.

Qualifications

• 10+ years in IT, including 8+ years in software development.
• Senior-level engineer: advanced proficiency in one coding language, or practical proficiency in two.
• Hands-on load and performance scripting.
• Hands-on QA automation with Playwright.

Responsibilities

• Design, build, and maintain back-end applications, APIs, and microservices in Java and Spring Boot.
• Work with customers and internal stakeholders to understand use cases and pain points, and turn them into user-focused solutions.
• Choose the right tech stack, integration approach, and deployment strategy for each application or service.
• Create high-level architecture designs covering components and interfaces.
• Define and carry out test strategy, guidelines, and processes, including performance and automated testing.
• Tune application performance and adopt new technologies that improve development efficiency.
• Apply TDD, CI, and CD practices, and support data security practices such as encryption and anonymization.
• Collaborate with cross-functional partners and build user-friendly interfaces where needed.

Skills

Java

Spring Boot

GCP Cloud Run

Load testing

Performance scripting

QA automation with Playwright

Automated scripting

CI/CD

Tools

Playwright

CI/CD tools

Job description

Vertage Inc. in Dearborn, MI is seeking a senior engineering contractor to design, build and test back-end Java and Spring Boot services, including APIs and microservices.

The role emphasizes quality engineering with load/performance scripting, Playwright automation, and secure, scalable architectures. You will collaborate with product owners, designers and architects to translate use cases into robust solutions, define test strategies, and tune performance.