Keel is hiring a

Web3 DeFi Data Engineer

About the Role

We're seeking a talented Data Engineer with a passion for DeFi to build and maintain our high-performance data infrastructure and support building automated analysis and insights. You'll be responsible for sourcing, indexing, and analyzing blockchain data, creating the data foundation that powers our platform's insights and decision-making.

What You'll Do

• Build and optimize data pipelines. Parse and transform Solana transaction and account data from Geyser gRPC feeds
• Design high-performance indexing systems that can handle real-time blockchain data at scale
• Develop robust data transformations that convert raw blockchain data into actionable financial metrics and business intelligence
• Create and maintain APIs using solutions like Supabase that expose our data to internal and external consumers
• Optimize database performance including query optimization, indexing strategies, and data modeling in PostgreSQL
• Monitor and improve pipeline reliability ensuring data accuracy and system uptime
• Collaborate with analysts and product teams to understand data needs and deliver solutions that enable deep insights into DeFi protocols and market dynamics

What We're Looking For

Required Skills

• Strong PostgreSQL expertise: Complex queries, performance tuning, indexing strategies, and data modeling
• Rust proficiency: Building and maintaining high-performance data processing systems
• Data pipeline architecture: Building reliable, scalable ETL/ELT systems that handle high-throughput data streams
• Understanding of financial metrics: P&L, liquidity metrics, trading volumes, yields, and DeFi-specific KPIs
• API development: REST or GraphQL APIs
• Devops: Cloudformation and infrastructure as code to deploy and manage data infrastructure

Highly Valued

• Experience with Solana
• Familiarity with Geyser or similar Rust-based blockchain data parsing frameworks
• Knowledge of DeFi protocols (DEXs, lending platforms, liquid staking, derivatives)
• Experience with Supabase edge functions and real-time subscriptions
• Background in data streaming and event-driven architectures
• Prior work in quantitative finance or trading systems
• Typescript is a plus

Who You Are

• Passionate about DeFi: You're excited by decentralized finance and eager to dive deep into onchain data
• Performance-minded: You care about system efficiency and write code that scales under heavy load
• Detail-oriented: You understand that data quality and accuracy are paramount in financial applications
• Self-directed: You can take ownership of complex problems and drive them to completion
• Collaborative: You work well with cross-functional teams and can translate technical concepts for different audiences
• Pragmatic problem-solver: You balance ideal solutions with practical delivery

Technical Stack

• Data Parsing: Vixen (Rust framework)
• Data Source: Solana Geyser gRPC feed
• Languages: Rust, TypeScript
• Database & Backend: Supabase (PostgreSQL)
• Infrastructure: Real-time data pipelines, API layer

What makes this role unique: You'll be working at the intersection of cutting-edge blockchain technology and data engineering, building infrastructure that processes millions of transactions and helps people understand and participate in the future of finance. You'll have direct impact on the data quality and insights that drive decision-making in one of the most dynamic ecosystems in crypto.

Applying for the role

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