Manual QA (Backend)

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

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?

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In this role, you will

• 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

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

• 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

• 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

Postman tests

• Experience with proxy debugging tools such as Charles or Proxyman to distinguish client-side and backend issues

What we offerCare 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

• Technical interview

• Final Interview

• Reference check

• Offer

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