Software Engineer - Blockchain & Digital Assets

Software Engineer – Blockchain & Digital Assets

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.

N3XT is a Wyoming-chartered Special Purpose Depository Institution (SPDI). We are a 100% reserved, non-lending bank designed to serve as a secure bridge between traditional capital markets and public blockchain infrastructure. Backed by Paradigm, HACK VC, Winklevoss Capital, and Pharsalus, we prioritize safety and transparency for institutional B2B clients.

Remote (CAN), Remote (USA). Full Time, Remote.

We are seeking a talented Software Engineer to build, scale, and own the public blockchain layer of our product offering. You will architect the smart contracts, the block‑listening infrastructure, and the event‑driven services that bridge our private bank reserves with public liquidity. You will work with a modern tech stack on Google Cloud Platform and will have the opportunity to solve complex challenges in the Fin Tech and Web3 space, supported by a team of highly competent people all aligned to liberating money.

• Smart Contract Development:
  Build and deploy tokenized assets (ERC‑20) and Identity NFT (ERC‑721) contracts on public blockchains.
• Finality‑Aware Infrastructure:
  Develop chain‑oriented services, ensuring the platform correctly handles probabilistic finality and chain reorganizations before notifying internal systems.
• Real‑Time Synchronization:
  Maintain and support reconciliation services to process on‑chain events (mints, burns, transfers) and trigger corresponding updates in our internal systems.
• Secure Mint/Burn Orchestration:
  Implement services utilizing Hardware Security Modules (HSMs) for secure, multi‑party authorized on‑chain transactions.
• Inconsistency Detection:
  Implement discrepancy detection services to verify fundamental system in variants.
• System Scalability & Reliability:
  Gain a deep understanding of our cloud architecture to ensure the high availability and scalability of our APIs, data processing reactors, and ledger systems.
• Mentorship &
  
  Collaboration:
  
  Act as a technical mentor for junior engineers and a subject‑matter expert for business stakeholders, helping them effectively consume and interpret platform data.
• Feature Delivery:
  Consistently deliver high‑quality features and associated tests in alignment with our product roadmap.

• 3+ years of professional software engineering experience, with a significant focus on data engineering or backend systems.
• Public Blockchain Mastery:
  Expert‑level Solidity and experience with the Ethereum Virtual Machine (EVM).
• Event‑Driven Systems:
  Proficiency with high‑throughput message brokers (e.g., Kinesis, Pub Sub, Rabbit
  
  MQ) to manage the flow of finalized blockchain events.
• Resilient Architecture:
  Strong understanding of idempotency and event ordering to prevent race conditions during distributed state updates.
• Blockchain Integration:
  Experience building distributed, fault‑tolerant services that interact with blockchain nodes via JSON‑RPC.
• Identity & Compliance:
  Familiarity with on‑chain whitelisting mechanisms using NFTs to enforce regulatory standards.
• A strong foundation in software development best practices, including version control (Git), automated testing, and CI/CD.
• Excellent problem‑solving skills and the ability to work independently in a fast‑paced environment.

• Familiarity with the Fin Tech, Blockchain, or Web3 ecosystems and concepts like smart contracts.
• Knowledge of containerization and orchestration technologies like Docker and Kubernetes.
• Previous experience mentoring junior engineers or acting as a tech lead on projects.
• A Bachelor's or Master's degree in Computer Science, Engineering, or a related field.

• Be part of a high‑impact team
• Work with cutting‑edge technology and regulatory frameworks
• Work with a diverse, global team in a remote‑friendly environment
• Competitive salary, benefits and professional development support

• Seniority level:
  Mid‑Senior level
• Employment type:
  
  Contract
• Job function:
  Engineering and Information Technology