Full Stack Engineer, Reporting Systems - Contract 6mo

Position Overview

• Location Type: Remote
• Employment Type: Contract
• Salary: $150/hour (dependent on experience)

Polychain is seeking a versatile Full Stack Engineer to architect and build the data pipelines, APIs, and user interfaces that power our reporting systems. You’ll work across the stack—from ingesting crypto-asset data from exchanges and block explorers, to building performant APIs, to designing intuitive dashboards that help portfolio managers monitor holdings, vesting schedules, and counterparty risk.

Requirements

• Education: Bachelor’s or Master’s degree in Computer Science, Data Science, or related field.
• Experience: 3–5 years of professional full-stack engineering experience.
• Backend Proficiency:
  • Go, Node.js, or Python
• Frontend Expertise: React and TypeScript (or equivalent)
• API Experience: Proven experience designing, building, and consuming APIs at scale, ideally involving crypto or fintech data.
• Database Skills: Advanced SQL skills and comfort working with Postgres, BigQuery, or similar.
• Data Visualization: Experience visualizing data using tools like D3, Recharts, or Plotly.
• Blockchain Fundamentals: Solid understanding of blockchain fundamentals: on-chain transactions, smart contract events, and DeFi protocols.
• Communication Skills: Strong communication skills and ability to collaborate across technical and non-technical teams.
• Adaptability: Comfortable working in ambiguity and iterating quickly in a fast-paced environment.

Responsibilities

• Backend API Development:
  • Design, implement, and secure REST/GraphQL endpoints for both on-chain and off-chain data.
  • Automate data ingestion from exchanges, DeFi protocols, custodians, and OTC counterparties.
  • Optimize data pipelines for reliability, low latency, and secure transmission.
• Data Normalization and Storage:
  • Normalize diverse crypto data types (trades, transfers, vesting events, price feeds).
  • Manage both relational and NoSQL databases; fine-tune indexing and partitioning strategies.
  • Write performant queries to power real-time dashboards and analytics.
• Frontend & UX:
  • Build and maintain accounting dashboards using React and TypeScript (or similar frameworks).
  • Translate complex datasets into intuitive visualizations—tables, charts, KPIs.
  • Follow best practices in state management, testing, and accessibility.
• Systems Integration:
  • Integrate internal microservices, third-party APIs, and on-chain data sources.
  • Extend or maintain low-code tooling (e.g., Retool) when it accelerates delivery.
• Cross-Functional Collaboration:
  • Work closely with teams across Asset Operations, Finance, and Investments to gather requirements and iterate on solutions.
  • Document APIs, data models, and UI components to support easy handoffs and team scaling.
• Compliance & Security:
  • Uphold data privacy principles and enforce crypto-specific security best practices.
  • Participate in code reviews and contribute to threat modeling and secure architecture.

Application Instructions

• (No specific application instructions provided in the job description)

Company Information

• Company: Polychain
• Equal Opportunity: Polychain is an equal opportunity workplace and is an affirmative action employer.
• Disclaimer: Polychain does not make hiring or employment decisions on the basis of race, color, religion, sex, national origin, protected veteran status, disability, genetic information or any other characteristic protected by federal, state, or local law.