Senior Web3 QA Automation Engineer @ Innowise
- 6+ years of QA experience, including strong hands-on experience in manual testing (requirements analysis, test case design, exploratory and regression testing) as a solid foundation for high-quality test automation;
- Proven experience building and maintaining end-to-end test automation across both Frontend and Backend, preferably using TypeScript;
- Experience with API testing (REST) and UI automation using Playwright, Cypress, Selenium, or similar frameworks;
- Deep understanding of blockchain transaction architecture and the ability to test the complete transaction lifecycle end-to-end: build → sign → broadcast → confirmation → finality, including nonce management, gas/fee models (including EIP-1559), transaction replacement/rebroadcast, and handling chain reorganizations (reorgs) and stuck transactions;
- Experience testing integrations with EVM-based networks (Ethereum, Arbitrum, Base, Polygon, Optimism, BNB Chain, etc.) and understanding the behavioral differences between networks;
- Strong understanding of DeFi protocols and the ability to design test scenarios for staking, bridging, lending/borrowing, AMMs/DEXs, on-chain routing, yield mechanisms, and the ERC-4626 vault standard;
- Knowledge of major token standards and the ability to validate their behavior, including ERC-20, ERC-721, ERC-1155, and EIP-712 (typed data signing);
- Understanding of wallet infrastructure, custodial and non-custodial architectures, transaction signing, and key lifecycle management from a testing perspective;
- Experience verifying on-chain state through blockchain RPC nodes, block explorers, and Web3 libraries such as ethers.js, viem, or web3.js to build reliable test assertions;
- Experience testing in testnet and mainnet-fork environments (Hardhat, Foundry, Anvil, Tenderly), including creating local blockchain forks, mocking on-chain conditions, and preparing deterministic test data;
- Strong analytical mindset with the ability to investigate backend issues using logs and monitoring tools such as Datadog, Sentry, or similar, and identify root causes;
- Practical experience using AI tools and AI agents to accelerate testing activities, generate and maintain test coverage, and analyze complex issues;
- Product-oriented mindset with the ability to analyze specifications, identify logical gaps, and propose improvements rather than simply validating implementation against requirements;
- Experience integrating automated tests into CI/CD pipelines (GitHub Actions, GitLab CI, or similar) and working with Git;
- English proficiency of B2 level or higher.
- Experience with non-EVM ecosystems, including Bitcoin's UTXO model, Solana's account model and programs, or the specifics of TON and Tron;
- General understanding of Multi-Party Computation (MPC), threshold signatures (ECDSA, EdDSA, Schnorr), and HSMs/secure enclaves as testing targets;
- Experience testing smart contracts and interacting with them, including unit and integration testing, fuzz testing (Foundry), proxy patterns, and upgrade mechanisms;
- Familiarity with oracle and cross-chain protocols such as Chainlink, Pyth, LayerZero, Wormhole, or similar, and understanding of how they impact testing scenarios;
- Experience working with on-chain indexers (The Graph or custom indexing solutions) for data verification;
- Experience with performance and load testing using k6, JMeter, or similar tools;
- Experience testing event-driven and microservices architectures (Kafka, RabbitMQ, SQS);
- Experience using Docker for test environment preparation, isolation, and containerization.
- End-to-end ownership of product quality with a real impact on the reliability of institutional-grade on-chain and financial transaction flows;
- An automation-first engineering culture focused on speed, supported by modern AI tools;
- Truly challenging technical problems at the intersection of QA, backend engineering, and Web3, including multi-chain integrations, transaction pipelines, and DeFi mechanisms;
- Collaboration with a world-class engineering team in a fast-growing global company;
- Competitive compensation aligned with the complexity of the role and your contribution;
- A broad portfolio of projects across FinTech, Blockchain, and AI.
Similar roles
Engineering Manager, Runtime Platform, Robot Software
Wayve·London, Canada
<div class="content-intro"><h2><strong>About us </strong> </h2> <p>Founded in 2017, Wayve is the leading developer of Embodied AI technology. Our advanced AI software and foundation models enable vehicles to perceive, understand, and navigate any complex environment, enhancing the usability and safety of automated driving systems.</p> <p>Our vision is to create autonomy that propels the world forward. Our intelligent, mapless, and hardware-agnostic AI products are…
- On-site
- Full-time
- Express Entry — PR day one, no employer
Staff Software Engineer UK
Paymentology·United Kingdom
Unstoppable starts with people. The future of payments is being built today, and at Paymentology, we are looking for people who want to help shape it. We power card issuing for leading banks, fintechs and digital brands across the globe, and as we continue to grow, we are looking for curious, ambitious people who thrive on solving complex challenges, embrace…
- On-site
- Full-time
Fullstack Developer (m/f/d) System Modernization & Strategic Delivery
primion Technology GmbH·Worldwide
Protect what matters. Primion Technology is a global solution provider and market leader in Converged Security Solutions and Workforce Management. For more than 30 years, we have supported around 4,000 satisfied customers worldwide who rely on our certified solutions every day. From consulting and planning to development, installation, maintenance, and support, a team of over 470 dedicated experts works passionately…
- Remote
- Full-time
Senior Software Engineer - Backend
Digital Zone·United Arab Emirates
Your mission is to be the engineer your team looks to for direction. You will solve the complex problems in your team's domain independently, and you will raise the bar for everyone around you, in the code that ships, the tests that guard it, and the standards the team holds itself to. DZ moves fast on a surface where mistakes…
- Remote
- Full-time
- Green Visa — self-sponsored, no tie
Staff Software Engineer
Digital Zone·United Arab Emirates
Your mission is to make DigitalZone's architecture hold together as the business multiplies. DZ has grown into several product verticals. With that growth comes drift: forked services, duplicated capabilities, and per-team divergence that quietly raises the cost of every future change. You will architect and deliver solutions that span multiple teams, drive convergence of shared services, and set the technical…
- Remote
- Full-time
- Green Visa — self-sponsored, no tie
Senior Java Software Engineer
1Global·Berlin, Germany
About Us 1GLOBAL is a technology-driven global mobile communications provider, delivering global connectivity solutions to enterprises and consumers. Powered by a best-in-class telecom platform with its own owned and operated global mobile core network in 15 countries, fully fledged in-house developed eSIM technology, and an extensive portfolio of telecom licenses; 1GLOBAL operates as a fully regulated telecommunications provider across 43…
- On-site
- Full-time
- Blue Card — tied; settle 21–33mo
Senior Firmware Engineer
Graphcore·Bristol, United Kingdom
<p class="PDq2pG_selectionAnchorContainer" data-start="135" data-end="148"><span style="font-size: 18pt;"><strong>About the job</strong></span></p> <p data-start="150" data-end="218">Own the firmware that brings Graphcore hardware and silicon to life.</p> <p data-start="220" data-end="431">As a Staff Firmware Engineer, you will design, develop and deliver firmware for Graphcore’s next generation products. Your work will sit close to the hardware and shape how our systems boot, run and communicate.</p> <p data-start="433" data-end="633">You…
- On-site
- Full-time
Senior Back-end Engineer - Customer Operations Platform
iwoca·London, Canada
Senior Software Engineer - Customer Operations Platform Hybrid in London, UK (1-2 days per week) We’re looking for a Senior software engineer iwoca’s operational tools and processes are a competitive advantage, allowing us to give great customer service, manage risk, and get money into our customers’ hands as quickly as possible. You’ll join our growing Customer Operations Platform team to…
- On-site
- Full-time
- Express Entry — PR day one, no employer
