Dev ProHiring

Senior QA Engineer (TypeScript, Blockchain)

  • Remote, Bulgaria
  • Contract
  • Senior
  • Posted 6 days ago
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In one line

Senior QA role on a large blockchain platform for private markets, mixing manual testing with building test automation for backend and distributed systems. Remote across Europe.

About the role

The platform aims to bring trust and transparency to private markets, and quality practices are being set up from scratch. Good work means reliable releases and automation that engineering teams actually adopt.

At a glance

Pay
Not stated in the posting
Remote scope
Remote, Bulgaria
Seniority
Senior
Employment
Contract
Skills
TypeScript, Node.js, REST APIs, JSON-RPC, gRPC, Docker, AWS, MongoDB
Posted
29 Oct 2026
Last checked
3 Nov 2026

What you will do

  • Lead testing across blockchain apps, from reading requirements to release support
  • Do hands-on manual checks and build automated tests for backend services and integrations
  • Work with engineers and business stakeholders on scope and coverage
  • Debug tests running in Docker and wire them into CI/CD pipelines

What they look for

  • Five or more years in QA or SDET roles, manual and automated, across the whole SDLC
  • Strong backend and non-UI test automation, including writing and debugging the tests
  • Programming for automation, preferably TypeScript and Node.js
  • Know how to define QA strategy, test plans and quality gates
  • Understand blockchain basics: wallets, transactions and chain types
  • Tested REST APIs and RPC interfaces such as JSON-RPC and gRPC

Nice to have

  • Blockchain testing, smart contracts and transaction flows
  • Go for automation, plus EVM frameworks like Foundry or Hardhat
  • Reading Solidity or Rust to validate contracts
  • Layer 2 and protocol testing, Kubernetes, async messaging, load testing

How Keywordise applies for you

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Claude

  1. In Claude, open Settings, then Connectors, and choose Add custom connector.
  2. Name it Keywordise and paste the connector URL.
  3. Click Connect, log in to Keywordise and approve. Then send the prompt in a new chat.
Connector URL
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ChatGPT

  1. In ChatGPT, open Settings, then Connectors. On plans that need it, turn on developer mode first.
  2. Add a new connector with the connector URL and choose OAuth. Leave the client ID and secret empty.
  3. Log in to Keywordise and approve. Then send the prompt in a new chat.
Connector URL
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Muse

  1. Open Muse (muse.ai or the app) and send it the message below.
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  3. Send the prompt. Muse asks before it sends anything.
Message for Muse
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Muse is available in the US only for now.

Prompt
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How to connect

Questions about this job

Can I do this job remotely, and from which countries?

Yes. The posting lists Senior QA Engineer (TypeScript, Blockchain) as a remote role for candidates in Bulgaria.

What does this job pay?

No pay range is stated in the posting.

What experience is needed?

It is a senior role. The posting asks for: five or more years in QA or SDET roles, manual and automated, across the whole SDLC; strong backend and non-UI test automation, including writing and debugging the tests; programming for automation, preferably TypeScript and Node.js. Skills it names include TypeScript, Node.js, REST APIs, JSON-RPC.

How do I apply with Keywordise AI?

Click Apply with Keywordise AI, create an account and upload your CV. Your CV and cover letter are written for this job from what you have really done, then Keywordise applies for you. Trial: 7 days, no card.

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