Blockchain Engineer

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.

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• 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
  
• 3+ years of software engineering experience, with at least 1+ years working with blockchain or distributed ledger technologies
  
• 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
  
• Knowledge of blockchain tools, APIs, and development environments (e.g. Cosmos SDK, Elements for Liquid, etc.)
  

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• 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
  
• 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
  

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• Stage 1: Initial interview
  
• Stage 2: Technical interview
  
• Stage 3: Final interview with the CTO
  

Mid‑Senior level

Full‑time

Engineering and Information Technology