Senior FullStack QA Engineer with Python (Programming language)

Company: CoinsPaid
Location: Remote - European Region
Type: full_time
Posted: Aug 19, 2026
Views: 0
Coinspaid Dev is the engineering brand behind the technology, infrastructure, and R&D expertise built within Coinspaid. With more than 120 engineers and over 11 years of industry experience, Coinspaid Dev brings together software engineering, infrastructure, security and R&D teams with experience building distributed systems and blockchain infrastructure operating across more than 20 blockchain networks.

Coinspaid Dev emerges as an independent engineering brand with a straightforward mission: to advance blockchain infrastructure engineering and contribute practical expertise back to the industry. The structure is new. The experience behind it is not.

Responsibilities:

  • Do requirements analysis, manual and automated testing
  • Be responsible for releasing products
  • Develop test documentation (checklist, test cases, quality reports) for manual and automation testing
  • Understanding the Test Pyramid Model. Work together with Dev engineers to ensure high, consistent code quality.
  • Maintain and expand the automation testing framework
  • Do functional and exploratory testing, including backend/api, message queue, blockchain, cryptocurrency exchanges. Execute all general types of testing.
  • Participate in testing tools development (including fake test services)
  • Participate in quality processes architecture, estimations, test cases design
  • Participate in CI/CD process improvement

    • Requirements:

  • 5+ years of experience in Quality Assurance, manual and automation testing
  • Experience in automation microservices
  • Experience in test automation frameworks development from scratch (Tech stack: Python + Pytest, Kuberneties, Gitlab CI, Grafana)
  • Comfortable working with Docker, Kubernetes, good understanding of CI/CD (we use ArgoCD and Gitlab)
  • Experience with queues Kafka/NSQ/NATS/Rabbit (we use NSQ)
  • Experience with ELK, Sentry, other monitoring/alerting tools
  • Deep understanding of QA approaches, testing principles, testing types, zero bug policy, test pyramid approach, tests coverage distribution and other
  • Experience in functional/non-functional testing (load testing, integration, acceptance testing, exploratory, security testing)
  • Excellent in understanding of the SDLC from requirements analysis, development, deployment to application monitoring
  • Independence and proactivity
  • Ability to quickly learn new things
  • Good level of spoken and written English and Russian

    • Nice to have:

  • User experience with cryptocurrency exchanges or with traditional trading markets
  • Blockchain experience. General understanding of Bitcoin, Ethereum and other popular blockchains would be a plus
  • fastAPI/Flask experience. Test services are written in fastAPI/Flask. They need to be maintained and expanded
  • GO experience. Services are written in GO. It could be useful to be able to read GO code

    • Why join CryptoProcessing by Coinspaid

    You’ll be joining a company that is actively shaping its space – with enough scale to matter and enough room to make an impact.

    At Coinspaid, people are expected to think, contribute, and take ownership – and are supported in doing so.

    We focus on flexibility, wellbeing, and long-term growth – without overcomplicating how benefits work.

    Flexible Benefits

    Benefit Bar – up to €230/month
    A flexible monthly budget you can use for what matters most to you – from sports and mental health to coworking, home office, or medical-related expenses.

    Work & Flexibility

    • Fully remote work from almost anywhere

    • Optional offices and relocation support

    • Flexible, async-friendly environment

    Growth & Learning

    • Budget for courses, certifications, and professional development

    • Language learning support

    • Cross-team learning and knowledge sharing

    Wellbeing & Support

    • Medical insurance or reimbursement depending on location

    • Access to mental health support

    • Financial support for important life events

    Extras

    • Merch shop with rewards system

    • Team offsites and company events

    Sounds good? Well then, we can’t wait to see your resume!
    Apply Now ♡ Save Job

    About the Company

    Name: CoinsPaid
    Location: Estonia (Remote-first, employees in 30+ countries)
    Website: https://coinspaid.com

    CoinsPaid offers ready-to-use crypto payment solutions tailored to business’ every need. Standing at the forefront of mass adoption, our products help businesses gear up for the new era of digital assets. We showed a tremendous growth in terms of transactions and volumes since 2019 and in 2023 were marked by Forbes as the “Best Crypto Payment Gateway for High-Volume Transactions”.

    Headquartered in Estonia and having 3 international hubs, we are still a remote-first company with employees working from 30+ countries around the world. At CoinsPaid, we are passionate about crypto, fintech and are putting great effort into building a team that will get the world ready for every-day crypto use.

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