Job Description

About Ctrl Alt:

Combining groundbreaking technology and expert financial engineering, Ctrl Alt is a B2B infrastructure solution provider that makes structuring and investing in alternative asset classes efficient, cost-effective, and accessible.

Since launching in 2022, Ctrl Alt has established itself as a leader and expert in the space with over $460m of assets tokenized.

With offices in the UK, Ireland and the UAE, the Ctrl Alt team is composed of financial and product experts including alumni from Morgan Stanley, Credit Suisse, UBS and Revolut. The business is backed by leading VCs including MiddleGame Ventures and Molten.

The Role:

We're looking for a Blockchain Engineer to join our team and help build the next generation of Ctrl Alt's tokenization and governance infrastructure. You'll work at the intersection of finance and distributed ledger technology, designing secure and reliable on-chain components that power a platform trusted by asset managers, fund administrators, and institutional investors.

You'll collaborate closely with our product team and other engineers to integrate blockchain networks into our systems, develop and test on-chain logic for tokenized assets, and build tools that make interacting with those networks seamless. Bringing both initiative and deep technical expertise, you'll play a key role in ensuring our blockchain integrations are robust, auditable, and ready to scale as adoption grows. You'll be the key player in Ctrl Alt's multi-chain architecture and help us to take our blockchain technology to the next level.

Key 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
Essential Requirements:

3+ years of software engineering experience, with at least 1+ years 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, etc.)
Nice to haves:

Exposure to finance or fintech environments, particularly involving digital assets or tokenization Hands-on experience with Cosmos SDK, Liquid Network, or other modular blockchain frameworks Understanding of consensus mechanisms and interoperability protocols Familiarity with regulated tokenization platforms or compliance-first blockchain use cases Experience working with custodial and non-custodial wallet systems Strong communication skills for writing documentation and technical specs
Benefits:

Generous stock options, with equity plans that let you share in the company's growth Private health insurance - we offer a premium private health insurance scheme (UK/IRE only) We offer 24 days annual leave plus public holidays, with flexibility for additional time off IT and office equipment to support your work, including a MacBook, displays and accessories Salary sacrifice scheme and financial tools to help you with your personal finances, covering childcare, groceries, tech, pensions, bikes and subscriptions (UK only) A state of the art central office in Belfast or Dundalk An annual learning and personal development budget for training, exams, certifications, qualifications or anything else which helps you progress at work and your career The opportunity to work in a high-growth startup where your contribution matters and shapes an industry Exposure to collaborative working and direct knowledge sharing from experts across financial services, blockchain and fintech
Interview Process:

Stage 1: Initial interview Stage 2: Technical Interview Stage 3: Final interview with the CTO
Job Types: Full-time, Permanent

Benefits:

Additional leave Company events Company pension Cycle to work scheme Financial planning services Health & wellbeing programme Private dental insurance Private medical insurance Referral programme Work from home
Work Location: Hybrid remote in Belfast BT1 4GB