Backend Jobs in Web3

Polychain is seeking a Backend Engineer to support our Accounting and Reporting Systems. This contract role is essential to building APIs, managing crypto asset data, and delivering actionable insights for our asset operations team. You’ll 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 API Development and Integration

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.

Data Management and Normalization

Normalize raw data to ensure accuracy and consistency across systems. Implement scalable data storage and retrieval solutions.

Query and Reporting Optimization

Write and optimize complex SQL and NoSQL queries to support robust reporting. Ensure data is easily queryable for portfolio insights and operations analysis.

Cross-Functional Collaboration

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.

Documentation and Compliance

Maintain clear documentation for APIs, data models, and reporting tools. Ensure compliance with data protection and processing standards.

Qualifications Required:

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.

Preferred:

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

Competitive Compensation:  $150/hour (dependent on experience). Polychain is an equal opportunity workplace and is an affirmative action     employer. Polychain does not make hiring or employment decisions on the basis of race, color, religion, creed, gender, national origin, age, disability, veteran status, marital status, pregnancy, sex, gender expression or identity, sexual orientation, citizenship, or any other basis protected by applicable local, state or federal law. We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law.