Manual QA Engineer (AdTech – DSP/SSP)

manual QAAdTechDSPSSPdigital advertisingRTBAPI testingRESTGraphQLPostmanSQLAgile

Key details

Salary

Not specified

Employment type

Full-time

Seniority

Senior

Years experience

5-10

Location

Poland

Full job description

Tatari seeks a Manual QA Engineer with 6+ years QA experience and 3+ years in AdTech, specifically DSP and/or SSP platforms. The role involves manual testing of web-based advertising platforms, validating the full ad delivery lifecycle, testing targeting logic, analytics, optimization workflows, RTB flows, UI and API testing (REST & GraphQL), using SQL for data validation, investigating production issues, validating third-party integrations, and supporting various testing types. Requires strong understanding of digital advertising workflows, API testing experience, SQL skills, analytical problem-solving, Agile experience, and intermediate English. The position is full-time, remote, based in Poland, with benefits including competitive salary, equity, tax assistance for Ukraine residents, time off, wellness days, team events, education benefits, stipends, and mental health app reimbursement.

What you'll do

Perform manual testing of web-based advertising platforms
Validate full ad delivery lifecycle: campaign setup, targeting, serving, pacing, attribution, and reporting
Test targeting logic, analytics accuracy, optimization workflows, and RTB flows
Conduct UI and API testing (REST & GraphQL)
Use SQL for data validation, reconciliation, and consistency checks
Investigate, reproduce, and document complex production issues; perform root cause analysis
Validate integrations with third-party partners, tracking systems, and data providers
Support regression, smoke, exploratory, and non-functional testing
Collaborate on frontend test automation initiatives

Requirements

6+ years of QA experience in web applications
3+ years of hands-on AdTech experience, specifically with DSP and/or SSP platforms
Strong understanding of digital advertising workflows, targeting logic, RTB, tracking, and reporting
2+ years of API testing experience (REST, GraphQL; Postman or similar tools)
Experience writing SQL queries for data validation
Strong analytical and problem-solving skills
Experience working in Agile environments
Excellent attention to detail and structured documentation skills
Intermediate English proficiency (written and spoken)

Tech stack

DSP platformsSSP platformsREST APIGraphQL APIPostmanSQL

Benefits

Competitive salary, including equity package and quarterly tax assistance (only for Ukraine tax residents)Competitive time off plus company wellness days throughout the yearTeam building eventsAnnual continued education benefitNewbie Productivity PerkMonthly stipendAnnual mental health awareness app reimbursementCurrently remote but may be hybrid when there is a physical office