QA & Delivery Lead Engineer for Blockchain Operating System
We are seeking an experienced QA & Delivery Lead Engineer to define and evolve QA processes, design and execute test strategies, and mentor QA engineers in a fast-moving blockchain environment. The ideal candidate will have 5+ years of software QA/testing experience, including 2+ years in leadership roles. Strong experience in testing distributed systems, backend services, and APIs is required.
Key Highlights
Key Responsibilities
Technical Skills Required
Benefits & Perks
Nice to Have
Job Description
Location: Poland (Remote) | Type: B2B, Full-time
I'm currently looking for an experienced QA & Delivery Lead Engineer ready to take on new challenges in their career!
My client is building the new operating system (O/S) for global finance. The company is growing fast, with $400B on the platform in 2025 and $1T in 2026. They are building "unified ledgers" with massive infrastructure (currently 20 million transactions per day, ready to scale up to 50 million). If you are looking for a challenging, greenfield/sandbox environment and working alongside experienced software engineers, this might be a role for you!
QA & Delivery Lead - Responsibilities:
- Define and evolve QA processes across engineering teams;
- Design and execute test strategies for backend, blockchain, and system-level components;
- Own automation pipelines and quality metrics;
- Manage release readiness, coordination, and stakeholder alignment;
- Mentor QA engineers and drive continuous improvement.
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QA & Delivery Lead - Requirements:
- 5+ years in software QA/testing, including 2+ in leadership roles;
- Strong experience testing distributed systems, backend services, and APIs;
- CI/CD, automation frameworks, and delivery ownership;
- Experience in blockchain or fintech is a major plus;
- Fluent or Professional level of English.
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Techstack: Go/Java, CI/CD, automation, documentation, automation, API/integration testing, backend testing, test case creation, distributed systems
Contract - Details:
B2B (no VAT, international invoice) + paid holidays
100% remote role
Up to 120K USD/year
This position is ideal for a QA leader who wants to blend engineering skills with product-level ownership in a fast-moving blockchain environment.
If you have any questions, please feel free to ask - a.sawa@ltharper.com
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