Backend Engineer, Reporting Systems

Summary

Join Polychain as a Backend Engineer to support our Accounting and Reporting Systems. This contract role involves building APIs, managing crypto asset data, and delivering actionable insights for our asset operations team. You will focus on data extraction from various crypto platforms, data normalization, and optimizing data accessibility for portfolio management, smart contract vesting, and counterparty exposure. Key responsibilities include API development and integration, data management and normalization, query and reporting optimization, and cross-functional collaboration. The role requires a Bachelor’s or Master’s degree in a related field, 3–5 years of backend engineering experience, strong SQL expertise, API design experience, and familiarity with blockchain technologies. Preferred qualifications include experience with Google Cloud or AWS and prior work in the crypto/blockchain industry. Competitive compensation is offered at $150/hour.

Requirements

• Bachelor’s or Master’s degree in Computer Science, Data Science, or a related field
• 3–5 years of experience in backend engineering roles
• Strong expertise in SQL and relational databases
• Proven experience designing and managing APIs
• Familiarity with blockchain technologies, smart contracts, and decentralized finance
• Ability to build backend-powered data visualizations and reporting interfaces
• Resourceful and solutions-oriented; comfortable in fast-paced, ambiguous environments
• Passion for cryptocurrency and blockchain technology

Responsibilities

• Design, develop, and maintain APIs to extract crypto asset data from counterparties and block explorers
• Ensure high reliability, performance, and security across all data pipelines
• Utilize no-code tools like Retool to build internal dashboards and data interfaces
• Normalize raw data to ensure accuracy and consistency across systems
• Implement scalable data storage and retrieval solutions
• Write and optimize complex SQL and NoSQL queries to support robust reporting
• Ensure data is easily queryable for portfolio insights and operations analysis
• Partner with teams across asset operations, finance, and investments to understand data needs
• Build dashboards and reports that provide visibility into smart contract vesting schedules, counterparty exposures, and portfolio positions
• Maintain clear documentation for APIs, data models, and reporting tools
• Ensure compliance with data protection and processing standards

Preferred Qualifications

• Experience with Google Cloud (BigTable) or AWS
• Prior work in the crypto/blockchain industry

Benefits

$150/hour (dependent on experience)