Senior Test Automation Engineer – C# / Java

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🕒 June 3

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Ubiminds

WebsiteLinkedInAll Job Openings

51 - 200 employees

🇺🇲 Ubiminds empowers Latin American talent to build meaningful careers, relationships, and products in American tech companies.

📋 Description

• Info on the Senior Automation Engineer - C# / Java role • Want to get to the next step in your international career? We can support you! • Ubiminds is a GPTW-certified, people-first company that partners with American software product companies to scale their development footprint. Ubi custom-curates Brazilian top 5% talent for their LATAM strategy, offering a unique combo of staff augmentation and employer-of-record services. • Ubiminds is assisting a company that is building an exciting new product suite for Public Safety. • Challenge • We’re looking for a Senior Automation Engineer with strong experience in #C or Java to help build modern, scalable, and maintainable applications. • This role is ideal for someone who enjoys working across the full stack — from crafting intuitive, responsive user interfaces to designing robust APIs and cloud-ready backend services — while applying clean architecture principles and modern engineering practices. • Responsibilities: • - Write and maintain automated unit and integration tests (frontend + backend) • - Review existing codebases to improve test coverage and identify gaps • - Use company-provided AI tools (e.g., Claude, Copilot) to speed up test creation and refactoring • - Debug test failures across application, infrastructure, and data layers • - Reduce test flakiness and noise in CI pipelines • Mandatory Skills: • Software Engineering • - Strong programming skills in C# or Java, and experience with Playwright • - Comfortable working in large, existing codebases • - Able to understand and navigate unfamiliar systems • - Solid understanding of testing fundamentals (unit vs. integration, mocking, isolation, etc.) • Test Automation • - Hands-on experience writing and maintaining unit and integration tests • - Familiar with frameworks like xUnit, JUnit, Jest, Karate, or similar • - Able to troubleshoot test failures across multiple layers of the stack • Engineering Practices • - Strong debugging and problem-solving skills • - Committed to writing high-quality, maintainable test code • - Comfortable in a Shift Left development environment • - Self-driven and able to collaborate effectively with cross-functional teams • - Clear and simple English communication (written and verbal) • AI & Modern Development • - Excited to use AI-powered tools (Claude, Copilot, etc.) in your daily work • - Willing to experiment with AI for test generation, refactoring, and coverage analysis • - Basic understanding of AI concepts like LLMs, or a strong interest in learning • Nice to Have: • - Strong experience writing tests based on product use cases or specs • - Hands-on experience writing tests using Claude Code or similar AI tools • - Experience writing end-to-end tests using Playwright • Team & Environment: • - Collaborative environment working closely with PMs, QA, and designers. • - Engineers are fully responsible for testing and code quality (shift-left development culture). • - Balanced workload of new feature development and ongoing system maintenance. • - Encourages ownership, accountability, and continuous improvement. • About Ubiminds • Our Culture • People First. We are all about people! • Challenge yourself. There’s always room for improvement and continuous improvement is in our essence. • Make it happen. Be ready to take challenges as they come. It’s all about attitude and commitment. • We’re in this together. We work as a team, thrive as a team, and evolve as a team. • Averaging on awesome. We work hard to deliver high-quality services and look forward to exceeding expectations. • Keep it real. We promise you honesty, transparency, and openness, regardless of the situation. • Perks and Benefits • As a Senior Automation Engineer - C#/ Java @Ubiminds, you: • - You are placed in a product-based company, with the same treatment as their full-time employees. • - Have our full back-office support, from career guidance to HR and concierge services. • - Enjoy our remote-first policy – we are a distributed team, after all. • - Get your own MacBook (none of that "bring your own device" stuff here). • - Have access to growth opportunities with other amazing technology professionals, through tech talks, chapter meetings, and even remote happy hours for tons of fun! • - Improve your English through free lessons with a native English speaker - get to the next level on your communication skills! • - Candidate Referral bonus (promote Ubi to your tech friends, and get paid for it!) • - Miss working in the office? Our cool Florianópolis headquarters is available, whenever you want, with weekly quick massages & tasty snacks, soft drinks, and games • How our process works • 1. Interview with Tech Recruiter (chat about the job opening and your experiences) • 2. Technical Assessment • 3. Client Interview • 4. Offer (yay)

🎯 Requirements

• Mandatory Skills: • Software Engineering • - Strong programming skills in C# or Java, and experience with Playwright • - Comfortable working in large, existing codebases • - Able to understand and navigate unfamiliar systems • - Solid understanding of testing fundamentals (unit vs. integration, mocking, isolation, etc.) • Test Automation • - Hands-on experience writing and maintaining unit and integration tests • - Familiar with frameworks like xUnit, JUnit, Jest, Karate, or similar • - Able to troubleshoot test failures across multiple layers of the stack • Engineering Practices • - Strong debugging and problem-solving skills • - Committed to writing high-quality, maintainable test code • - Comfortable in a Shift Left development environment • - Self-driven and able to collaborate effectively with cross-functional teams • - Clear and simple English communication (written and verbal) • AI & Modern Development • - Excited to use AI-powered tools (Claude, Copilot, etc.) in your daily work • - Willing to experiment with AI for test generation, refactoring, and coverage analysis • - Basic understanding of AI concepts like LLMs, or a strong interest in learning • Nice to Have: • - Strong experience writing tests based on product use cases or specs • - Hands-on experience writing tests using Claude Code or similar AI tools • - Experience writing end-to-end tests using Playwright

🏖️ Benefits

• As a Senior Automation Engineer - C#/ Java @Ubiminds, you: • - You are placed in a product-based company, with the same treatment as their full-time employees. • - Have our full back-office support, from career guidance to HR and concierge services. • - Enjoy our remote-first policy – we are a distributed team, after all. • - Get your own MacBook (none of that "bring your own device" stuff here). • - Have access to growth opportunities with other amazing technology professionals, through tech talks, chapter meetings, and even remote happy hours for tons of fun! • - Improve your English through free lessons with a native English speaker - get to the next level on your communication skills! • - Candidate Referral bonus (promote Ubi to your tech friends, and get paid for it!) • - Miss working in the office? Our cool Florianópolis headquarters is available, whenever you want, with weekly quick massages & tasty snacks, soft drinks, and games