Middle/Senior Golang Engineer

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Wirex

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2014

💳 Fintech

🌐 Web 3

🏦 Banking

💰 Series B on 2021-12

Fintech • Web 3 • Banking

Wirex is a financial technology company that provides a range of services for managing cryptocurrencies and traditional financial assets. Established in 2014, Wirex has supported over 6 million customers worldwide and processed transactions exceeding $20 billion. It offers products such as the Wirex card, which allows users to earn up to 8% Cryptoback™ rewards on transactions, and X-Accounts, which offer up to 16% interest on certain currencies. Wirex's platform supports various digital assets and stablecoins, providing a secure and simple way to earn, trade, and manage money in the Web3 ecosystem. Additionally, Wirex provides a free and instant cross-chain bridge for stablecoins and crypto and offers the unique capability to borrow stablecoins starting at 0% APR. The company is committed to pioneering global payment innovations and offers a robust infrastructure for digital asset management, catering to both individual and institutional needs.

📋 Description

• Design, build, and maintain backend services using Go, focusing on high-performance, low-latency solutions for Web3 card payment processing. • Develop and maintain smart contract integrations, including interactions with on-chain data and handling transaction flows between the blockchain and application layer. • Create and manage APIs for interactions with the blockchain, payments infrastructure, and third-party services (e.g., Wirex B2B API, Ethereum, and other EVM-compatible chains). • Implement efficient and secure transaction handling, with support for asynchronous transaction confirmations and a processing oracle to facilitate sequential transaction workflows. • Develop services to support cross-chain token swaps, stablecoin transactions, and fund management across different chains. • Implement secure data handling practices for sensitive financial data and user information, including encryption, authentication, and authorization protocols. • Ensure high availability and reliability through monitoring, debugging, and troubleshooting issues in live environments, particularly around transaction and fund flows.

🎯 Requirements

• 3+ years in Go development, with 1+ year in Web3 or blockchain projects. • Understanding of blockchain fundamentals, especially Ethereum and EVM-compatible networks; experience with smart contracts, Ethereum nodes (Geth, Infura, etc.), and wallet integrations. • Familiarity with financial transaction lifecycles, particularly in Web3 ecosystems, including token transfers, stablecoin transactions, and cryptocurrency wallet management. • Proficient in RESTful API and gRPC service design and development; experience with API security and integration best practices. • Proficient in working with both relational (MySQL), with a strong focus on data consistency and performance. • Experience with containerized applications and Kubernetes for deployment in production environments; familiarity with managing Go microservices in Kubernetes. • Understanding of cryptographic principles and experience implementing secure data storage and transmission solutions. • Familiarity with cloud infrastructure (e.g., AWS, GCP, Azure) and CI/CD pipelines for Go applications. • Good English for documentation, Ukrainian or Russian communication skills.

🏖️ Benefits

• Premium tariffs for Wirex product. • Semi-remote work with flexible hours—work from home or office. • Home office allowance. • Virtual share options scheme after the probation period. • Health insurance coverage after the probationary period. • Generous vacation policy: 20 business days of paid leave. • Paid sick leave, Birthday, and Anniversary leave. • Length of Service Holidays. • Engaging in online events for learning and enjoyment. • PE accounting and support.