BLOCKCHAIN ENGINEER

Svitla Systems Inc. is looking for a Blockchain Engineer for a full-time position (40 hours per week) in Poland. Our client is the world’s leading cryptocurrency wallet company, which is designed to provide users with access to Web3, facilitating online payments and the exchange of digital assets through blockchain. It supports millions of assets across 100+ blockchains, including major chains like Bitcoin, Ethereum, BNB Smart Chain, Cosmos, and Polkadot. The application combines a web-based browser and a complete security audited system to send, receive, and store digital assets as well as synchronize with tokens issued on the Ethereum blockchain, enabling users to exchange bitcoins, currencies, and assets in real-time, interact with any decentralized application and have complete control of their Ethereum-based collectibles. Over 150+ million users trust this California-based company.

You’ll join a highly autonomous team of engineers dedicated to expanding the capabilities of The Wallet Core Library. This open-source, cross-platform library implements low-level cryptographic wallet functionality for a large number of blockchains succinctly. Your contributions will directly impact the ease with which developers integrate blockchain technologies into their applications, fostering broader adoption and enhancing user experiences.

Requirements

• 2+ years of experience in Crypto/Blockchain development using Rust, Go, or C++.
• Strong software development fundamentals, including knowledge of algorithms and data structures.
• Demonstrated capability in writing efficient, secure, and safe code.
• Good understanding of Ethereum Virtual Machine (EVM) internals, including memory/storage optimization and gas cost analysis.
• Familiarity with low-level Ethereum smart contract functions (delegate call, static call, call) and proven experience with maintaining or writing, or deploying an EVM smart contract.
• Solid grasp of Rust internals and compiler-level concepts (e.g., zero-cost abstractions, enum internals, memory safety).
• Self-managed, proactive work style; capable of independent work within a collaborative team environment.
• Excellent interpersonal, consultative, and communication skills, including exceptional written English communication skills.
• Proficiency in modern development practices, including automated testing and continuous integration, particularly for library development.
  
  

Nice to have

• Experience with cryptography and blockchain security.
• Familiarity or experience with mobile platforms (iOS/Android) and Rust/Wasm integrations.
  
  

Responsibilities

• Feature Innovation: Research, design, and develop new blockchain integrations in Rust; implement new features for existing blockchains.
• System Architecture: Design robust architectures ensuring the Core library seamlessly integrates with various blockchains and third-party systems.
• Rust Migration: Transition existing C++ codebase to Rust for enhanced security, robustness, and memory safety.
• Code Quality: Write clean, efficient, well-tested code, ensuring high test coverage.
  
  

We offer

• US and EU projects based on advanced technologies.
• Competitive compensation based on skills and experience.
• Annual performance appraisals.
• Flexibility in workspace, either remote or in our welcoming office.
• Comprehensive medical insurance after one month.
• MultiSport card with access to 2500 sports facilities all over Poland
• Bonuses for article writing, public talks, other activities.
• 15 vacation days, 10 national holidays, sick leaves, family days off.
• Personalized learning program tailored to your interests and skill development.
• Free webinars, meetups and conferences organized by Svitla.
• Gifts for anniversaries, New Year, children and more.
• Fun corporate celebrations and activities.
• Awesome team, friendly and supportive community!