Manual QA (Backend)

United Tech
Ukraine
Remote

Who this role is best for

Best suited to candidates with backend testing experience working in global social networking platforms.

Best fit for

  • Candidates with backend testing experience and a strong grasp of REST API and MongoDB validation
    — “Perform manual testing of backend REST APIs and WebSocket flows using Postman, Swagger, and curl”
  • Individuals who have tested A/B experiments and monetization flows with analytics tools
    — “Test A/B experiments, monetization flows, and analytics events, and work with internal tools such as admin panels, brand settings, and feature flags”
  • Candidates with experience in creating test documentation and working in collaborative, process-oriented teams
    — “Create and maintain test documentation, including test cases in Qase, checklists, and bug reports in Jira”

Things to consider

  • The role requires a solid understanding of HTTP and REST concepts as well as backend data validation techniques
    — “Understand HTTP and REST fundamentals, including methods, status codes, headers, and token-based authorization”
  • Candidates must be proficient in either MongoDB or SQL, with MongoDB being preferred
    — “confident SQL skills are an alternative, while MongoDB experience is preferred”
  • The position requires at least intermediate English proficiency for communication and documentation
    — “Have an Intermediate (B1) level of English or higher”

How to stand out

  • Highlight experience in test design techniques like equivalence partitioning and boundary value analysis
    — “Know test design techniques such as equivalence partitioning, boundary value analysis, and decision tables”
  • Emphasize your ability to validate data and prepare test states in MongoDB
    — “Validate data and prepare test states in MongoDB”
  • Demonstrate familiarity with log and metrics analysis tools like Grafana or Kibana
    — “Familiarity with Grafana, Loki, or Kibana for log and metrics analysis”
  • Demonstrate hands-on experience with proxy debugging tools such as Charles or Proxyman
    — “Experience with proxy debugging tools such as Charles or Proxyman to distinguish client-side and backend issues”
Pace · Fast PacedCollaboration · MediumAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • Perform manual testing of backend REST APIs and WebSocket flows
  • Validate data and prepare test states in MongoDB
  • Test new backend features and verify bug fixes
  • Create and maintain test documentation
  • Review product requirements and technical designs
Typical background
2+ years of experience in manual backend testingExperience with MongoDB and SQLExperience with test management systems

Skills & requirements

Required

Manual Backend TestingREST API TestingWebsocket TestingDatabase TestingTest Case CreationTest DocumentationTest Management SystemsTest Design TechniquesAPI Tools (postman, Swagger, Curl)MongoDBHTTP And REST FundamentalsTest Automation SkillsProxy Debugging Tools

Preferred

GrafanaLokiKibanaBigQuerySQL

Stack & domain

PostmanSwaggerCurlMongoDBSQLTest Design TechniquesQaseJiraBigQueryApple/google In-app PurchasesWeb BillingGrafanaLokiKibanaJavascript/typescriptPostman TestsCharlesProxymanCommunicationTeamworkQABackend TestingREST APIWebsocketMarketing LogicsData AccuracyAutomation Testing Tools

About the role

Original posting from United Tech via Lever

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?

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 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
  • Technical interview
  • Final Interview
  • Reference check
  • Offer

Source: United Tech careers (Lever)

Similar roles

More roles at United Tech