Blockchain Software Engineer: Tokenization & On-Chain

Ctrl Alt; Greater London; On-site; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Stock options

Private healthcare

26 days annual leave + birthday off

MacBook and gear

Learning budget

Job summary

Ctrl Alt is building the future of on-chain infrastructure for digital capital markets. We design secure, scalable tokenization and governance components used by asset managers and institutional investors.

Join a high-performance, ownership-driven team in London and beyond, where you’ll shape multi-chain deployments, smart contracts, and backend integrations while influencing our platform’s security posture and operational resilience.

Qualifications

• 3+ years of software engineering experience, with at least 1+ year working with blockchain or distributed ledger technologies.
• Experience using TypeScript/JavaScript to build integrations with blockchains.
• Familiarising with a queue-based architecture.
• Experience developing and deploying smart contract logic or similar on Layer 1 networks.
• Familiarity with token standards and asset representation on-chain.
• Understanding of cryptographic primitives (e.g. signatures, hashes, multisig) and transaction flows.
• Experience integrating blockchain infrastructure into backend applications, ideally in a TypeScript/JavaScript based environment.
• Knowledge of blockchain tools, APIs, and development environments (e.g. Cosmos SDK, Elements for Liquid).

Responsibilities

• Design and implement secure, auditable smart contract logic for tokenization, asset management, and governance.
• Work with a queue-based architecture to create transactions, send them to the blockchain node, and manage the responses to keep track of the ledger.
• Integrate blockchain and distributed ledger technologies into our backend systems.
• Evaluate, test, and deploy blockchain logic on networks such as Cosmos, Liquid, and other Layer 1s.
• Build tools for interacting with on-chain infrastructure (transaction monitoring, wallet integrations, etc.).
• Collaborate with product and engineering teams to deliver robust blockchain-based solutions for financial institutions.
• Stay up to date on developments in blockchain infrastructure, standards, and regulatory frameworks.
• Promote best practices in blockchain security and operational resilience.

Skills

Blockchain

TypeScript/JavaScript

Distributed ledger

Smart contract

Backend integration

Crypto primitives

Blockchain integrations

Cosmos SDK

Tools

Cosmos SDK

Liquid Network

Job description

Ctrl Alt is building the future of on-chain infrastructure for digital capital markets. We design secure, scalable tokenization and governance components used by asset managers and institutional investors.

Join a high-performance, ownership-driven team in London and beyond, where you’ll shape multi-chain deployments, smart contracts, and backend integrations while influencing our platform’s security posture and operational resilience.