QA Engineer

ExitLag; São Paulo; On-site; BRL 111,600 - 156,240; Full time

Benefits offered by this job

Remote and flexible work environment

Home office allowance

Health and wellness support

Profit sharing plan

Bradesco health plan

Job summary

A technology company based in São Paulo is seeking a QA Engineer to join their engineering team. The role involves ensuring quality and performance of products through manual and automated testing, with responsibilities including test suite management and collaboration with developers. The ideal candidate should have over 3 years of experience in software quality assurance, proficiency in programming languages like Python or JavaScript, and good analytical skills. This position offers a remote-friendly environment and the chance to impact millions of gamers worldwide.

Qualifications

• 3+ years of experience in software quality assurance or test engineering.
• Proficiency in at least one programming language (Python, JavaScript/TypeScript).
• Experience with API testing tools (Postman, REST Client).

Responsibilities

• Design, develop, and maintain automated test suites for backend and client applications.
• Create and execute manual test plans for new features and regressions.
• Collaborate with developers to define acceptance criteria.

Skills

Software quality assurance

Test engineering

Programming in Python or JavaScript

API testing tools

Analytical skills

Problem-solving

Communication skills

Tools

Postman

Linear

Jira

CI/CD tools

Squish

Job description

⭐ BE PART OF THE EXITLAG CLAN

GPTW certified company – Great Place to Work

Are you a fan of games, technology, and challenges that make a difference? ExitLag could be your next big mission.

We are the world's first AI-powered game optimization platform, ensuring maximum performance and connection stability for millions of players in over 190 countries.

Born in Brazil, we operate with a global culture, high performance, and a total focus on user experience. Here, gaming is serious business, and we always deliver in PRO mode.

Why work at ExitLag?

• ✅ We are GPTW – Great Place To Work
  A high-performance team, strong culture, and people who truly believe in what they do.
• ✅ Impact beyond gaming
  Your work transforms the experience of millions of gamers around the world.
• ✅ Growth + Real challenge
  An environment that accelerates your technical and professional development with autonomy and delivery.
• ✅ Global Mindset
  We are Remote First and work on global projects. Where you are never limits how far you can go.

Job Purpose

We are looking for a QA Engineer to join EXITLAG's engineering team. You will be responsible for ensuring the quality, reliability, and performance of our products across desktop clients, backend services, and network infrastructure. This role combines manual and automated testing to ship high-quality software that serves millions of gamers worldwide.

Key Responsibilities

• Design, develop, and maintain automated test suites for backend services (Rust, Node.js) and client applications
• Create and execute manual test plans for new features, regressions, and edge cases
• Collaborate with developers to define acceptance criteria and testability requirements before implementation begins
• Build and maintain CI/CD test pipelines to catch regressions early
• Conduct performance and load testing on critical services (connection routing, tunnel management, analytics ingestion)
• Investigate, document, and track defects with clear reproduction steps using Linear and Jira
• Participate in sprint reviews and planning, providing quality-focused input on estimates and risk
• Monitor production metrics and alerts to identify quality issues proactively
• Champion testing best practices and help the team shift quality left

Required Qualifications

• 3+ years of experience in software quality assurance or test engineering
• Proficiency in at least one programming language (Python, JavaScript/TypeScript)
• Experience with HTTP-based client-server communications and API testing tools (Postman, REST Client, or programmatic approaches)
• Familiarity with CI/CD tools (BitBucket Pipelines, Azure Devops)
• Solid understanding of software development lifecycle and agile methodologies
• Experience with bug tracking and project management tools (Linear, Jira)
• Strong analytical and problem-solving skills
• Excellent written and verbal communication skills
• Experience testing desktop applications (Qt/QML) using Squish automation tool

Nice to Have

• Experience with network protocols (TCP/UDP, tunneling, VPN technologies)
• Familiarity with Rust or C++ codebases
• Experience with protocol buffer (protobuf) based services
• Background in gaming or latency-sensitive applications

What We Offer

• Work on technology that directly impacts millions of gamers
• Exposure to cutting-edge networking and systems programming
• Collaborative, engineering-driven culture
• Opportunity to shape QA processes and tooling from the ground up
• Remote-friendly work environment

Benefits and Advantages:

1. Hiring as a legal entity (PJ)
2. 100% remote and flexible environment
3. Solid career plan aligned with performance.
4. Allowance for home office, health, wellness, and food of R$1,300.00 on a Flash card
5. Partnership with TotalPass, Zenklub, and Exitlag free of charge, available to everyone in the Clan.
6. Paid time off and days off to ensure you are always at your best.
7. Profit sharing plan + company shares after 6 months of employment.
8. 50% assistance for courses and specializations after 6 months of employment.
9. Bradesco health plan 100% paid by the company for the holder
10. Annual bonus of one salary for the entire company, proportional to your length of service.