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Manual QA (Backend)

United Tech

We are looking for a

Manual QA Engineer

(Backend). In this role, you will dive deep into backend testing, working with both relational and document-oriented databases, REST API clients, Proxy tools, and analytics. Also you will test marketing logics, ensure seamless data accuracy, and directly influence the quality of a global-scale product. You will be part of a fast, responsive team with minimal bureaucracy, open communication, and the opportunity to grow through working with automation testing tools

Responsibilities

  • Perform manual testing of backend REST APIs and WebSocket flows using Postman, Swagger, and curl

Validate data and prepare test states in MongoDB

  • Test new backend features, verify bug fixes, and perform smoke, sanity, and regression testing before releases, including post-release production checks
  • Create and maintain test documentation, including test cases in Qase, checklists, and bug reports in Jira
  • Review product requirements and technical designs before implementation
  • Test A/B experiments, monetization flows, and analytics events, and work with internal tools such as admin panels, brand settings, and feature flags
  • Investigate bugs using logs and metrics in Grafana, identify root causes, and distinguish between client-side and backend issues while contributing to improved testing efficiency and quality
  • Know test design techniques such as equivalence partitioning, boundary value analysis, and decision tables
  • Have experience with test management systems such as Qase, TestRail, or similar tools, and use Jira and Confluence in your work
  • Postman tests
  • Experience with proxy debugging tools such as Charles or Proxyman to distinguish client-side and backend issues

About the company

United Tech is a global IT product company shaping the future of real-time social connection. With millions of users across North America, Europe, LATAM, and MENA, we build next-gen mobile and web apps for live-streaming and social networking. Our platforms enable connection at scale fast, interactive, and deeply engaging. The market is projected to exceed $206B by 2030, and we are already leading the evolution. Founded in Ukraine, scaling worldwide. Are you in?

In this role, you will

It’s all about you

Have 2+ years of experience in manual backend testing using API tools such as Postman, Swagger, or curl

Have hands-on experience with MongoDB, including writing queries with filters and projections and using aggregation pipelines; confident SQL skills are an alternative, while MongoDB experience is preferred

Understand HTTP and REST fundamentals, including methods, status codes, headers, and token-based authorization, as well as the differences between REST and WebSocket

Have experience with MongoDB Compass or mongosh

  • Have experience testing A/B experiments and analytics events, including working with BigQuery or SQL
  • Have experience testing payment and subscription flows, including Apple/Google in-app purchases and web billing
  • Have an Intermediate (B1) level of English or higher

Would be a plus

  • Familiarity with Grafana, Loki, or Kibana for log and metrics analysis
  • Basic API test automation skills using JavaScript/TypeScript or

What we offer

Care and support

  • 20 paid vacation days, 15 sick days, and 6 additional days off for family events
  • Up to 10 additional days off for public holidays
  • 100% medical insurance coverage
  • Sports and equipment reimbursement
  • Team building events, corporate gifts, and stylish merch
  • Maternity recovery support allowance

Financial and legal support

  • Position retention and support for those who join the Armed Forces of Ukraine
  • Participation in social initiatives supporting Ukraine

Comfortable working environment

  • Work from our Kyiv hub or remotely with a flexible schedule
  • Modern equipment or depreciation of your own tools

Investment in your future

  • Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
  • 70% of our heads and leads have grown into their roles here – so can you!
  • Performance-oriented reviews and Individual Development Plans (IDPs)
  • Reimbursement for professional courses and English classes
  • Corporate library, book club, and knowledge-sharing events

Hiring process

Intro call

Final Interview

  • Reference check
  • Offer