Senior Backend Engineer

We are hiring a Senior Backend Engineer to help scale and secure the backend systems of a cutting-edge blockchain infrastructure platform. In this role, you will be instrumental in building highly available APIs, robust data ingestion pipelines, and services that transform on-chain data into meaningful insights for end users.
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Key Responsibilities

Backend Architecture & Development

• Design and implement backend services using NestJS with a clean, modular architecture
• Build serverless and cloud-native services using Cloud Run (or AWS Lambda)
• Manage data schemas and handle migrations using Prisma ORM or equivalent
• Develop reliable, secure APIs with minimal downtime to ensure users’ fund access is uninterrupted
• Apply software engineering best practices such as separation of concerns, least privilege, and defensive programming
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Data & Blockchain Integration

• Ingest and process blockchain data using tools like viem.sh, The Graph, or ethers/web3 libraries
• Build systems that sync and structure DeFi-related data, including asset pricing, balances, and yields
• Optimize performance for data queries and processing workflows
• Apply domain knowledge of DeFi (e.g. lending, liquidity pools) to interpret and utilize on-chain data
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Documentation & Cross-Functional Collaboration

• Maintain up-to-date technical documentation using OpenAPI and internal tools
• Work closely with frontend, protocol, and product teams to align backend features with product needs
• Provide internal demos and technical walkthroughs for newly developed features
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Reliability & Observability

• Monitor and debug production issues quickly with strong observability and post-mortem processes
• Implement logging, alerting, and dashboarding tools to ensure service transparency
• Maintain high test coverage through rigorous unit and integration testing
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• Define and monitor SLAs for backend services
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Infrastructure & DevOps (Nice to Have)

• Deploy infrastructure using Terraform (or similar IaC tools) on GCP or AWS
• Set up automated pipelines for provisioning, testing, and deploying across dev/staging/prod environments
• Manage system performance, cost-efficiency, and uptime
• Implement and maintain CI/CD pipelines
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Expected Outcomes

• Secure and modular backend services that support core business operations
• Fully automated infrastructure deployment across environments
• Real-time observability across backend systems
• Comprehensive internal documentation of system architecture and data flows
• High standards of code quality and peer review practices
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Ideal Candidate

Must Have

• Proven background of backend development experience with Node.js (NestJS preferred)
• Demonstrable experience working on DeFi protocols or blockchain infrastructure on EVM-compatible networks
• Experience designing schemas and working with ORMs (e.g. Prisma)
• Comfortable reading and understanding Solidity smart contracts
• Hands-on experience with cloud infrastructure and tools like Terraform, GCP, Docker
• Understanding of event-driven systems and microservices
• Familiarity with subgraph indexing tools such as The Graph
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Nice to Have

• Basic experience writing Solidity contracts
• Background in financial or regulated industries
• Experience designing analytics or data pipeline services
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Attributes Our Client Values

• Security-first: Thoughtful about permissions and attack surfaces
• Structured thinker: Balances clean architecture with practical implementation
• Autonomous: Can own and deliver features end-to-end
• Collaborative: Communicates effectively with engineers and stakeholders
• Detail-oriented: Notices edge cases and subtle bugs before they become problems

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