Junior QA Engineer - Manual

Posted 17 Days Ago
Be an Early Applicant
Prague
Hybrid
Junior
Artificial Intelligence • Mobile • Software • App development
Top agency for custom software development & AI
The Role
Own and execute manual end-to-end testing, define test strategy and plans, validate API behavior, drive QA lifecycle (including AI components), collaborate with Product and Engineering, report quality metrics, and approve releases to ensure flawless user experience.
Summary Generated by Built In

* This position is hybrid, so being located in Prague is essential

ABOUT US

We are a leading product development partner specializing in custom web and mobile application development. With Silicon Valley founders and top-tier European tech talent, we operate from Prague and have successfully delivered over 65 software products for early-stage startups, scaleups, and global enterprises.

  • Founded in 2016

  • Headquartered in Prague

  • Built and launched 65+ products

  • 90+ team members

  • Driving product innovation for leading US companies

OUR PROJECTS

Here are a few from our portfolio:

  • Nasdaq Private Market (Series C, Finance)- nasdaqprivatemarket.com

  • Blackpoint Cyber (Series B, Cybersecurity) - blackpointcyber.com

  • OpenLoop (Series A, Healthcare) - openloophealth.com

THE ROLE

You’ll be responsible for implementing and maintaining the test strategy and test plans, and manually testing the product to ensure seamless e2e experiences. Beyond testing stories, you will be responsible for the overall quality of the product and will ensure that the application functions flawlessly from the users' perspective.

Collaborating closely with our Tech Lead, you'll streamline workflows and help organize releases. You'll be the decision-maker, giving the green light for each release. You’ll collaborate with Engineers to clarify product functionalities and provide them with testing data. Most importantly, you’ll be a partner to the Product Manager, gaining insights into the business and project scope to determine quality assurance priorities and to set effective testing strategies.

In this role, you will work on AI driven applications as well. You will have the unique opportunity to gain hands-on experience in testing AI systems as well.

If you're highly proactive, well-organized, and passionate about quality products, this position is perfect for you!

RESPONSIBILITIES
  • Support the Product Manager with the preparation of the product specification, user stories, business analysis, prioritization, and other project management activities to enhance the team’s velocity

  • Work closely with the Product Manager and Tech Lead to define the test strategy, plan, scenarios, and cases, and collaborate on testing requirements and activities as a core part of the business rollout strategy.

  • Drive the testing lifecycle for AI components, ensuring the accuracy, reliability, and quality of AI-driven features

  • Support the engineering team with product and business knowledge and testing data

  • Actively participate in refinement ceremonies, providing estimations (from the QA side) and uncovering edge cases

  • Drive the whole QA process and testing lifecycle

  • Measure and report key quality metrics to the team and stakeholders

  • Drive the product launch checklist documentation

SKILLS & REQUIREMENTS
  • 2+ years of experience in manual testing of web applications

  • Experience with Postman or a similar tool for API testing

  • Highly self-organized, detail-oriented, reliable team player

  • Ability to clearly communicate and efficiently coordinate the team

  • Experience with creating test documentation (test strategy, test plan, test scenarios, and test cases)

  • Strong analytical thinking and ability to uncover edge cases

  • Experience with defining acceptance criteria

  • Ability to provide clear estimations of QA work

  • Experience working independently on a project, as the only QA, is a plus

  • Experience with test automation is a plus (Typescript, Playwright or Cypress)

  • Professional proficiency in English

BENEFITS
  • Flexible working hours

  • Hybrid working environment

  • 26 days off + 1 additional day for every year working with OAK’S LAB (capped at 30 days)

  • Top-of-the-line MacBook and hardware budget

  • Budget to spend on your growth (books, courses, conferences)

  • Free English lessons

  • Team bonding, happy hours, online games, and annual offsite trips

  • Outside of work, activity clubs (yoga, traveling, football, tennis, etc.)

  • Snacks and drinks in the office, weekly pizza, and monthly breakfast

  • Landmark office right on Old Town Square (dog-friendly)

Important Notice: OAK'S LAB communication, including interview requests and job offers, are only sent from an "@oakslab.com" or "@oaks-lab.com" email address (e.g., [email protected] or [email protected]). Any message from a different email domain is not associated with OAK'S LAB. We will never ask for payment information or banking details via email, phone, or any other communication channel during the interview process. If you receive messages using our name, domain, or brand assets in an attempt to impersonate us or act on our behalf, do not engage. Instead, report it to Econsumer.gov at https://econsumer.gov/ (if you are in the EU), Federal Trade Commission (FTC) at https://reportfraud.ftc.gov/, or the Securities and Exchange Commission (SEC) in case of investment fraud at https://www.sec.gov/tcr (if you are in the US).

Top Skills

Postman,Typescript,Playwright,Cypress
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The Company
59 Employees
Year Founded: 2016

What We Do

OAK’S LAB is a leading product development partner specializing in custom web and mobile application development that drives tangible business results. With Silicon Valley founders and top-tier European tech talent, we operate from Prague and have successfully delivered over 65 software products for early-stage startups, scaleups, and global enterprises.

Notable Clients:

• AAA - 61M members
• Blackpoint Cyber - $201M in funding
• Blue Owl Capital - $251B AUM
• Capital Markets Gateway - $69M in funding
• Nasdaq Private Market - $62M in funding
• PlexTrac - $81M in funding
• Productboard - $261M in funding
• Volkswagen - $5B market cap


Our Services:

1. Product Discovery
Before writing a single line of code, we help you identify the right product to build. Through market research, user validation, and rapid prototyping, we reduce risk and ensure your product meets real user needs and is commercially viable.

2. Custom Web & Mobile Development
We build scalable, high-performance applications using React.js and Node.js, tailored to your business goals. Our focus on clean architecture and modern frameworks ensures your product is fast, secure, and ready to scale.

3. AI & Agentic Systems
We design and build AI-powered systems that automate workflows, streamline operations, and connect siloed data. Leveraging LLMs, RAG, and AI orchestration, we create intelligent solutions that deliver efficiency gains.

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