Position: Senior Blockchain Engineer
Company: Boosty Labs
Experience required: 5y
English level: upper

Our client believes that blockchain data should be accurate and access to this data should be scalable, private, and uncensored.  Their mission is to create a marketplace for blockchain data via aligned token incentives and an open-source protocol for RPC nodes and APIs.  They are backed by some of the top crypto-native venture capital funds and angel investors.

**Responsibilities:**

• Developing our blockchain modules in Cosmos SDK and proprietary side channel services.
• Developing blockchain state transition functions and queries
• Adding verifications for data integrity and testing
• Keeping a high level of blockchain security and performance during development and testing
• Developing our protocol for side channel processes
• Creating new APIs
• Expanding our coverage to new blockchains

Our client has been running our private testnet for a few months and they are ready to scale their operations ahead of the public testnet later this year. We need your blockchain development experience to harden our MVP for heavy data volume and implement the cutting-edge features and functionality we have planned.  You have done this before so you know the pitfalls to avoid.  We need your code velocity to strengthen our existing blockchain and side channel features while developing new ones.

**Requirements:**

• Golang development experience (Ideally 5+ years)
• A background in Software Security / Bug Hunting
• Good understanding of blockchain concepts and familiarity with the ecosystem
• Hands-on experience developing a protocol or a network
• Ideally with Layer 1 blockchain, even better with a Cosmos SDK chain
• Contributions to Web3 Open Source code
• Upper-Intermediate or above English level

**What we offer:** 
• Flexible working format (remote, office, or mix)
• Flexible working hours
• Informal and friendly atmosphere
• The ability to focus on your work: a lack of bureaucracy and micromanagement
• 20 paid vacation days
• 7 paid sick leaves
• Education reimbursement
• Free English classes
• Psychologist consultations

**Recruitment process:** Recruitment interview - Technical interview - Client interview