Job description
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
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.
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.
Prepare your application
Use the description above to assess your fit for Polychain Capital. This checklist is guidance from Resumize, rather than additional requirements from the employer. Imported listings can be shortened or change after collection, so confirm the complete description and current availability before sending an application.
Match requirements to evidence
Identify the responsibilities and skills the employer explicitly names. For each important requirement, choose one example from your work, education, training, or projects. Explain what you did, how you did it, and what changed as a result. Include a measurable outcome when you can support it. If you lack a requirement, describe related experience accurately instead of adding an unfamiliar skill to your resume.
Put the most relevant examples near the top of your resume. Keep job titles, dates, qualifications, and contact details consistent across your application materials. Use the employer’s terminology when it describes your experience accurately; a copied list of keywords does not explain your contribution. A short, specific bullet is easier to review than a paragraph that mixes several unrelated duties.
Check the working arrangement
Confirm the location, schedule, employment type, and any eligibility requirements on the employer’s site. A remote label does not establish worldwide eligibility or flexible hours. If compensation, benefits, equipment, travel, or contract duration are missing from this listing, write down your questions for the recruiter. Do not assume details from another opening at the same company apply to this role.
Review before submitting
Follow the employer’s requested file format and application instructions. Open your exported resume and check that its text is selectable, its sections read in order, and its links work. Proofread names, dates, and contact information. Share confidential work samples only when you have permission, and use an anonymized example when necessary.
Submit through a trusted employer or recruiting destination. If the original listing has disappeared, search the employer’s careers page for the title rather than assuming the vacancy remains open. Save the application date, job reference, and the version of your resume you sent. Those details help you prepare for a later conversation and avoid submitting conflicting information through several job boards.
Review your resume for writing and readability feedback, or browse other openings if this opportunity is unavailable.