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About the Role

We are seeking a Backend QA Engineer to ensure the reliability, performance, and scalability of our backend systems. This role involves testing APIs, databases, and backend services, collaborating with engineers to maintain high-quality standards across our infrastructure. The ideal candidate combines software development practices with quality assurance, contributing to test design, automation, API validation, and infrastructure review.

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.

Skills

Node.js
TypeScript
SQL
PostgreSQL
REST API testing
Postman
Swagger
API testing
Database testing
Integration testing
TestRail

Location

Lisbon
San Francisco

Work Type

Full-time

Experience Level

2-3 years

Benefits

Apple hardware ecosystem for work
Annual Bonus
Medical Insurance (including vision & dental)
Disability insurance - short and long-term
401k up to 4% contribution
Air Conference – an opportunity to meet the team, collaborate, and grow together
Transportation budget
Free meals at the hub
Gym membership

About the Company

Air Apps believes in thinking bigger and moving faster.
We’re a family-founded company on a mission to create the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP).
Born in Lisbon, Portugal in 2018 and now with offices in both Lisbon and San Francisco we’ve remained self-funded while reaching over 100 million downloads worldwide.
Our long-term focus drives us to challenge the status quo every day, pushing the boundaries of AI-driven solutions that truly make a difference.
Here, you’ll be a creative force, shaping products that empower people across the globe.
Join us on this journey to redefine resource management and change lives along the way.

Equal Opportunity

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.