Backend QA Engineer, London
Backend QA Engineer, London

Backend QA Engineer, London

London Full-Time 40000 - 50000 ÂŁ / year (est.) No home office possible
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At a Glance

  • Tasks: Test and validate backend systems, APIs, and databases while collaborating with engineers.
  • Company: Join Air Apps, a dynamic tech company in Lisbon focused on quality and innovation.
  • Benefits: Enjoy free meals, health insurance, transportation budget, and a diverse work environment.
  • Other info: Relocation support available for the right candidate.
  • Why this job: Make a real impact on backend systems and grow your skills in a collaborative setting.
  • Qualifications: 2-3 years of experience with Node.js, TypeScript, and backend testing practices.

The predicted salary is between 40000 - 50000 ÂŁ per year.

We are looking for a Backend QA Engineer to help ensure the reliability, performance, and scalability of our backend systems. In this role, they will focus on testing APIs, databases, and backend services while collaborating closely with engineers to maintain high‑quality standards across our infrastructure. This is a fully onsite position, based in Lisbon, where you will collaborate closely with cross‑functional teams in person and contribute to a dynamic and fast‑paced environment. We are open to support with relocation efforts.

The ideal candidate has approximately 2–3 years of experience working with backend technologies such as Node.js and TypeScript and enjoys combining software development practices with quality assurance. They will contribute to test design, automation, API validation, and infrastructure review while helping maintain a strong quality culture within the engineering team.

Responsibilities
  • Design and execute tests for backend systems, including APIs, databases, and service integrations.
  • Validate API functionality and performance using tools such as Postman, Swagger, or similar platforms.
  • Test and verify database operations, queries, and data integrity in systems using PostgreSQL or similar relational databases.
  • Collaborate with engineering teams to review pull requests, ensuring code quality and test coverage.
  • Support the development and maintenance of automated tests for backend services.
  • Participate in reviewing backend infrastructure and identifying potential reliability or performance issues.
  • Document and track defects, test cases, and test results using test management tools such as TestRail or similar systems.
  • Work closely with developers and product teams to improve testing strategies and overall product quality.
Requirements
  • Approximately 2–3 years of experience working with backend technologies, testing, or software development in test roles.
  • Experience with Node.js and TypeScript in backend environments.
  • Familiarity with SQL databases, particularly PostgreSQL, and experience validating database queries and data integrity.
  • Experience testing REST APIs using tools such as Postman, Swagger, or similar API testing tools.
  • Understanding of backend testing practices, including API testing, database testing, and integration testing.
  • Familiarity with test management tools such as TestRail or comparable platforms is beneficial.
  • Comfort reviewing pull requests and backend architecture changes to help ensure quality standards.
  • Strong attention to detail, problem‑solving skills, and the ability to collaborate with cross‑functional teams.
Why Join Air Apps? (Lisbon)
  • Annual Bonus
  • Top‑tier Health and Life Insurance for peace of mind.
  • Transportation Budget to support your commute needs.
  • Coverflex benefits package for meal allowances, well‑being, and more.
  • Urban Sports Club membership to keep you active.
  • Meals 100% free at the office.
  • Pension Fund to support your long‑term financial planning.
  • Annual Conference: an opportunity to meet the team, collaborate, and grow together.
  • Apple hardware ecosystem for work.

At Air Apps, we are committed to fostering a diverse, inclusive, and equitable workplace. We enthusiastically welcome applicants from all backgrounds, experiences, and perspectives. We celebrate diversity in all its forms and believe that varied voices and experiences make us stronger.

Backend QA Engineer, London employer: Air Apps

Air Apps is an exceptional employer located in Lisbon, offering a vibrant work culture that prioritises collaboration and innovation. With comprehensive benefits including top-tier health insurance, a transportation budget, and free meals at the office, employees are well-supported both personally and professionally. The company fosters growth through annual conferences and a commitment to diversity and inclusion, making it an ideal place for those seeking meaningful and rewarding employment as a Backend QA Engineer.
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Contact Detail:

Air Apps Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Backend QA Engineer, London

✨Network Like a Pro

Get out there and connect with people in the industry! Attend meetups, tech conferences, or even local events. You never know who might have a lead on that perfect Backend QA Engineer role.

✨Show Off Your Skills

Create a portfolio showcasing your testing projects, especially those involving Node.js and TypeScript. This is your chance to demonstrate your expertise and passion for backend technologies!

✨Ace the Interview

Prepare for technical interviews by brushing up on your API testing knowledge and database skills. Practice common interview questions and be ready to discuss your experience with tools like Postman and PostgreSQL.

✨Apply Through Our Website

Don’t forget to apply directly through our website! It’s the best way to ensure your application gets noticed and shows us you’re genuinely interested in joining our team.

We think you need these skills to ace Backend QA Engineer, London

Backend Testing
API Testing
Database Testing
Node.js
TypeScript
PostgreSQL
REST API Validation
Test Automation
Test Management Tools
Attention to Detail
Problem-Solving Skills
Collaboration
Integration Testing
Defect Tracking

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with backend technologies like Node.js and TypeScript. We want to see how your skills align with the role, so don’t be shy about showcasing relevant projects or achievements!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re passionate about quality assurance and how you can contribute to our team. We love seeing enthusiasm and a bit of personality in your application.

Showcase Your Testing Skills: Since this role focuses on testing APIs and databases, make sure to mention any tools you’ve used, like Postman or TestRail. We’re keen to know how you approach testing and ensure quality in your work.

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it’s super easy!

How to prepare for a job interview at Air Apps

✨Know Your Tech Stack

Make sure you brush up on your knowledge of Node.js, TypeScript, and PostgreSQL. Be ready to discuss how you've used these technologies in your previous roles, especially in testing APIs and databases. This will show that you’re not just familiar with the tools but can also apply them effectively.

✨Demonstrate Testing Skills

Prepare to talk about your experience with API testing tools like Postman or Swagger. Bring examples of how you've validated API functionality and performance in past projects. If possible, consider doing a mock test scenario to showcase your hands-on skills during the interview.

✨Collaboration is Key

Since this role involves working closely with cross-functional teams, be ready to share examples of how you've collaborated with developers and product teams in the past. Highlight any experiences where your input helped improve testing strategies or product quality.

✨Attention to Detail

Showcase your problem-solving skills and attention to detail by discussing specific instances where you identified defects or performance issues in backend systems. This will demonstrate your commitment to maintaining high-quality standards and your proactive approach to quality assurance.

Backend QA Engineer, London
Air Apps
Location: London

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