Full Stack Engineer, Reporting Systems - Contract 6mo

Polychain Capital; San Francisco (CA); On-site; USD 170,478 - 242,802; Full time

Job summary

A leading company in the crypto space is seeking a Full Stack Engineer to architect and build data pipelines, APIs, and user interfaces for their reporting systems. The role involves working across the stack, from data ingestion to dashboard design, requiring strong technical skills in both backend and frontend technologies. Ideal candidates will have a solid understanding of blockchain fundamentals and experience in fintech.

Qualifications

• 3–5 years of professional full-stack engineering experience.
• Proven experience designing, building, and consuming APIs at scale.
• Solid understanding of blockchain fundamentals.

Responsibilities

• Design, implement, and secure REST/GraphQL endpoints.
• Automate data ingestion from exchanges and custodians.
• Build and maintain accounting dashboards using React.

Skills

Backend proficiency with Go

Node.js

Python

Frontend expertise with React

TypeScript

Advanced SQL skills

Data visualization tools

Blockchain fundamentals

Strong communication skills

Education

Bachelor’s or Master’s degree in Computer Science

Data Science

Job description

Full Stack Engineer, Reporting Systems - Contract 6mo

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.

Key Responsibilities

• 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

• 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.
  
  

Requirements

Required:

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

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.

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