Senior Software Engineer (Web3 and AI)

As a Senior Full-Stack Engineer at Libeara, you will design, build and maintain a blockchain-based financial platform for regulated digital assets. You own backend services, frontend applications, smart contracts, APIs and integrations supporting investor onboarding, token lifecycle management, wallet integrations, and fiat and stablecoin settlement. Working closely with engineering, product, security and operations teams, you deliver secure, robust applications while assessing new blockchain networks, developing proof of concepts, and helping deliver integrations to production.

What you'll do

• Design and maintain scalable TypeScript and Node.js backend services using NestJS and microservices architecture
• Build APIs and integrations with financial institutions, wallet providers, compliance services and blockchain infrastructure
• Develop reliable asynchronous workflows using BullMQ, Redis and Azure Service Bus, including retries, idempotency and failure recovery
• Design and optimise PostgreSQL and MongoDB databases, maintaining consistency between application records and on-chain data
• Troubleshoot complex application and production issues
• Build and maintain Next.js and React applications for investors and platform administrators
• Collaborate with product and design teams to deliver secure, accessible and responsive interfaces
• Implement authentication, permissions, approval workflows and clear transaction-status handling
• Integrate smart contracts and blockchain networks, including Ethereum, Arbitrum, Avalanche and Solana
• Assess new-chain feasibility, covering security, finality, fees, token capabilities, tooling, institutional signing, indexing and settlement support
• Build proofs of concept, document technical recommendations and help implement approved chain integrations
• Develop token issuance, minting, burning, transfer and investor eligibility workflows
• Integrate MPC wallet and signing providers such as Fireblocks or Utila, and RPC and indexing providers such as Alchemy
• Support stablecoin settlement, fiat on and off-ramps, reconciliation and exception handling
• Handle transaction signing, confirmations, chain reorganisations and on-chain and off-chain consistency
• Deploy and operate applications on Azure using Docker and Kubernetes
• Contribute to Terraform, CI/CD and Argo CD deployment workflows
• Implement monitoring, audit logging, secure access controls and secrets management
• Support penetration-test remediation and collaborate on smart contract audit findings
• Write maintainable code and automated tests, conduct code reviews and mentor other engineers
• Own delivery from technical design through deployment and production support
• Collaborate with internal teams and external development partners to maintain quality and accountability
• Identify opportunities to adopt AI tools for development, code reviews and process improvement, with mindful human review

What you bring

• 5+ years of experience in full-stack software development
• Strong proficiency in TypeScript, Node.js and React
• Experience delivering production APIs, microservices and event-driven systems
• Hands-on production experience with blockchain, smart contract and wallet integrations
• Ability to assess unfamiliar blockchain networks, develop proofs of concept and contribute to end-to-end integrations
• Proven experience accelerating SDLC productivity through AI-assisted development and code reviews in real-world projects
• Working knowledge of EVM concepts, token standards, transaction signing and blockchain events
• Ability to design, develop, test and review Rust and Solidity contracts and troubleshoot application integrations
• Strong database experience, preferably PostgreSQL and MongoDB, with familiarity with Redis
• Experience with cloud platforms, preferably Azure, and Docker and Kubernetes deployments
• Understanding of secure application design, distributed system reliability, idempotency and data consistency
• Strong testing, troubleshooting, communication and technical ownership skills
• Comfort working independently in a fast-paced environment

Nice to have

• NestJS and Next.js experience
• Fintech or capital markets experience, particularly in banking, payments, asset management, custody or regulated digital assets
• Familiarity with fund subscriptions and redemptions, net asset value (NAV), settlement, reconciliation and financial precision
• Experience with tokenised real-world assets (RWA), stablecoin payments or fiat on and off-ramp integrations
• Familiarity with KYC and KYB, AML, wallet screening, maker-checker approvals and audit trails

About Libeara

Libeara is rebuilding capital markets on-chain with a compliance-first approach to tokenising real-world assets. Backed by SC Ventures, the innovation arm of Standard Chartered, Libeara's infrastructure has supported the tokenisation of more than US$1 billion in regulated assets, including a top-rated tokenised U.S. Treasury fund and the first tokenised retail money market fund in Asia.