Web3 & Blockchain Full-Stack Engineer

SBL Nova; United States; Hybrid; USD 140,000 - 195,000; Full time

Benefits offered by this job

Remote within US

Flexible hours

Health, dental, and vision

Job summary

SBL Nova designs the bridge between traditional collateral monitoring and on-chain assets for its securities-based lending platform. The role focuses on connecting on-chain smart contracts with off-chain systems, tokenized collateral, wallets, and settlement networks.

The ideal candidate has 5+ years in full-stack development, 2+ years building production Web3 apps with Solidity and front-end integrations, and strong backend experience.

Qualifications

• 5+ years of professional full-stack software development experience.
• 2+ years building production Web3 applications, including smart contract development (Solidity) and front-end Web3 integrations (ethers.js/viem, wagmi).
• Backend development experience with Node.js, Python, or Go, and comfort designing REST/GraphQL APIs.
• Practical understanding of wallets, key management, transaction signing, and multi-chain infrastructure.
• Experience with blockchain data tooling (block explorers, indexers like The Graph, RPC providers such as Alchemy/Infura).
• Experience with cloud platforms (AWS, GCP, or Azure) and CI/CD pipelines.
• Ability to reason carefully about security, given you'll be touching code that moves real value.

Responsibilities

• Design and build full-stack features spanning on-chain smart contracts and the off-chain platform that surfaces them to advisors and institutions.
• Develop and maintain smart contracts for tokenized collateral tracking, settlement, and reporting, working closely with our security auditor on every deployment.
• Build reliable indexing and monitoring pipelines that keep on-chain and off-chain collateral data in sync in real time.
• Integrate wallet, custody, and RPC infrastructure into our existing lending and servicing products.
• Collaborate with product and design to ship intuitive interfaces for a largely non-crypto-native audience of financial advisors and institutions.
• Participate in architecture decisions as we scale our blockchain footprint, balancing innovation with the reliability our regulated clients require.
• Ship on a two-week Agile cadence alongside the rest of the engineering team.

Skills

Full-stack software development

Web3 development

Smart contract development (Solidity)

Front-end Web3 integrations

REST/GraphQL API design

Security-aware development

Tools

Node.js

Python

Go

ethers.js

viem

wagmi

The Graph

Alchemy/Infura

AWS

GCP

Azure

CI/CD

Job description

Design and build the on-chain and off-chain infrastructure connecting SBL Nova’s lending platform to tokenized collateral, wallets, and settlement networks.

SBL Nova powers the only fully automated digital lending platform for securities-based lines of credit, taking origination from weeks to under an hour. We're now building the bridge between traditional collateral monitoring and on-chain assets — tokenized securities, digital custody, and blockchain-based settlement — and need a full-stack engineer equally comfortable in Solidity and a modern web app.

About The Role

Design and build the on-chain and off-chain infrastructure connecting SBL Nova’s lending platform to tokenized collateral, wallets, and settlement networks.

Qualifications

• 5+ years of professional full-stack software development experience


• 2+ years building production Web3 applications, including smart contract development (Solidity) and front-end Web3 integrations (ethers.js/viem, wagmi)


• Backend development experience with Node.js, Python, or Go, and comfort designing REST/GraphQL APIs


• Practical understanding of wallets, key management, transaction signing, and multi-chain infrastructure


• Experience with blockchain data tooling (block explorers, indexers like The Graph, RPC providers such as Alchemy/Infura)


• Experience with cloud platforms (AWS, GCP, or Azure) and CI/CD pipelines


• Ability to reason carefully about security, given you'll be touching code that moves real value

Bonus Qualifications

• Experience with tokenization of real-world assets, securities, or collateral


• Familiarity with DeFi lending/borrowing protocols, oracles, and cross-chain bridges


• Experience integrating custodial or non-custodial wallet infrastructure into a regulated product


• Prior fintech, banking, or wealth management platform experience


• Exposure to SOC 2 controls or financial services compliance requirements

Responsibilities

• Design and build full-stack features spanning on-chain smart contracts and the off-chain platform that surfaces them to advisors and institutions


• Develop and maintain smart contracts for tokenized collateral tracking, settlement, and reporting, working closely with our security auditor on every deployment


• Build reliable indexing and monitoring pipelines that keep on-chain and off-chain collateral data in sync in real time


• Integrate wallet, custody, and RPC infrastructure into our existing lending and servicing products


• Collaborate with product and design to ship intuitive interfaces for a largely non-crypto-native audience of financial advisors and institutions


• Participate in architecture decisions as we scale our blockchain footprint, balancing innovation with the reliability our regulated clients require


• Ship on a two-week Agile cadence alongside the rest of the engineering team


• Competitive salary ($140K–$195K) plus equity in a growth-stage fintech company


• 100% remote within the US, with flexible hours


• Comprehensive health, dental, and vision coverage and 401(k) with match


• Generous PTO and a results-focused culture — we care about output, not hours logged


• Learning stipend for courses, conferences, and certifications (on-chain or off)


• Work on a genuinely novel problem: bringing regulated securities-based lending on-chain, not another token launch


• Small, senior team with real ownership — you'll ship features end-to-end, not just tickets


• Modern tooling and the autonomy to choose the right infrastructure for the job