Manual QA Engineer – Senior

Posted 3 Days Ago
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Hiring Remotely in Warszawa, Mazowieckie, POL
In-Office or Remote
Senior level
Blockchain • Gaming • Payments • Software
The Role
Owns end-to-end quality for a high-load backend and microservices product, including test strategy, risk-based testing, API and database validation, defect investigation, release oversight, QA metrics, observability analysis, and process improvement. Collaborates with product, infrastructure, and business stakeholders while researching AI-assisted QA tools. The role requires strong troubleshooting, CI/CD awareness, and hands-on experience with Postman, REST APIs, Jira, GitLab CI, ELK, and Grafana.
Summary Generated by Built In
Overview:

SOFTSWISS continues to expand the team and is looking for a Senior Manual QA Engineer to join our team. We need a true, experienced, and accomplished professional who shares our culture and values.

About Product:

The SOFTSWISS Game Aggregator is a high-load casino games API platform that connects operator platforms to multiple remote game servers via a single integration.

Behind the product is a team of engineers, DevOps specialists, integration experts, account managers, and partnership professionals who ensure reliable, secure, and scalable operations for operators worldwide. You'll solve complex technical challenges and help power one of the industry's leading aggregation platforms.

Key responsibilities:
  • Own QA for your product team end-to-end: test strategy, checklists, test cases, etc.

  • Measure product quality with meaningful QA metrics and indicators (not vanity numbers)

  • Report QA status, risks, and plans to your team and product stakeholders

  • Review feature requirements early; surface gaps, ambiguities, and risks before development

  • Lead releases as the responsible QA; monitor deploy results in production

  • Diagnose defects and track them from discovery to resolution

  • Validate data directly in the databases - you will work with databases on daily as part of this role

  • Collaborate closely with product, infrastructure, and business

  • Give product demos to the Product Owner

  • Research and adopt new QA approaches and tools, including AI-assisted QA (agents, skills) to speed up routine work

  • Continuously improve the team’s QA process

Required Experience:
  • 4+ years in QA of server-side / backend applications

  • Strong test design & analysis - risk-based prioritization, solid test-design techniques, and exploratory testing

  • Systematic mindset and independence - proven experience improving QA processes and driving them, comfortable in a mixed Scrum / non-Scrum environment

  • Strong hands-on experience with microservice-based systems -this is the core of the role. You understand the trade-offs of microservice architecture (pros and cons)

  • API testing - confident with Postman and REST APIs

  • CI/CD - understands pipelines and can read them (GitLab CI)

  • Bug tracking - Jira, structured defect management and reporting

  • Strong troubleshooting - can localize a failure (frontend vs backend vs data vs infra)

  • Logs / observability - able to investigate via ELK / Grafana

  • English / Russian - Upper-Intermediate (B2) or higher; good communication skills

Nice to have:
  • Prior ClickHouse experience

  • Web UI testing and familiarity with design systems (component libraries)

  • Test automation tools - experience using test automation tools such as Selenium, JUnit, TestNG, or similar technologies

  • AI for QA productivity - using agents / skills / LLM tooling to automate and speed up routine work

  • Product / iGaming domain experience

Our Benefits:
  • Private health insurance

  • Sports benefits

  • Comprehensive Mental Health Program

  • Free English lessons (online)

  • Local language courses

  • Paid time off

  • Maternity leave support

  • Referral program rewards

  • Upskilling, internal workshops, and participation in professional conferences and corporate events

Skills Required

  • 4+ years of QA experience with server-side or backend applications
  • Strong test design and analysis, including risk-based prioritization, test-design techniques, and exploratory testing
  • Experience improving QA processes and working independently in mixed Scrum and non-Scrum environments
  • Strong hands-on experience with microservice-based systems
  • Confident API testing experience with Postman and REST APIs
  • Understanding of CI/CD pipelines and ability to read GitLab CI pipelines
  • Experience with Jira and structured defect management and reporting
  • Strong troubleshooting skills across frontend, backend, data, and infrastructure
  • Ability to investigate logs and observability data using ELK and Grafana
  • Upper-Intermediate B2 English and Russian or higher, with strong communication skills
  • Prior ClickHouse experience
  • Web UI testing and familiarity with design systems or component libraries
  • Experience with test automation tools such as Selenium, JUnit, TestNG, or similar technologies
  • Experience using AI agents, skills, or LLM tooling for QA productivity
  • Product or iGaming domain experience
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The Company
HQ: Il-Gżira
2,000 Employees
Year Founded: 2009

What We Do

SOFTSWISS is a global iGaming technology provider offering a comprehensive ecosystem of software solutions for online casinos and sportsbooks. The company specializes in B2B solutions, including a Casino Platform, Game Aggregator, and Sportsbook Platform, as well as the Affilka affiliate marketing tool. They provide turnkey and white-label services, enabling operators to efficiently launch and manage their gambling businesses worldwide.

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