At a Glance
- Tasks: Drive tokenization features and scale digital asset architecture from concept to deployment.
- Company: Join CoinDesk, a leader in the crypto economy with a commitment to innovation.
- Benefits: Competitive salary, flexible work options, and opportunities for professional growth.
- Other info: Be part of a dynamic team focused on cutting-edge technology and industry standards.
- Why this job: Make a real impact in the evolving world of digital assets and blockchain technology.
- Qualifications: 5+ years in software engineering with expertise in smart contracts and secure development.
The predicted salary is between 80000 - 100000 € per year.
CoinDesk is the most trusted media, events, indices and data company for the global crypto economy. Since 2013, CoinDesk Media has led the story of the future of money and investing, illuminating the transformation in society and culture that comes with it. Our award-winning team of journalists delivers news and unparalleled insights that bring transparency, comprehension and context. CoinDesk Events gathers the global crypto, blockchain and Web3 communities at annual events such as Consensus, the world’s largest and longest-running crypto festival. CoinDesk Indices offers expertise in digital asset indices, data and research to educate and empower investors.
In November 2023, CoinDesk was acquired by the Bullish group, owner of Bullish, a regulated, digital assets exchange. CoinDesk operates as an independent subsidiary with an editorial committee to protect journalistic independence.
Reports to: Director, Engineering
Engineering Organization & Culture
At Bullish, we are engineering the institutional standard for the digital asset industry. Our mission is to build a platform centered on security and compliance, requiring a commitment to technical excellence that extends beyond delivering code. As a global organization, we set a high bar for those driven to do their best work alongside experienced, deeply specialized peers. Engineers here treat development as a craft and own the outcome from concept to deployment. Our teams bring structure to ambiguity and shape the frameworks that support a global organization. We refuse to compromise on quality and seek problem solvers who thrive on complex technical challenges with real market consequences.
The Team: Custody Engineering
The Custody Engineering team builds the systems that safeguard user assets, architecting secure and compliant infrastructure for the full lifecycle of funds. Our technical scope spans blockchain development, smart contracts, oracles, and the full-stack systems that power them. We operate with a high degree of autonomy and ownership over core infrastructure, connecting blockchain technology with institutional-grade stability. With the core architecture in place, the team is now heavily focused on advancing the tokenization strategy. You will scale those systems and ship on-chain features whose impact is visible to the business directly.
What You'll Do
- Drive tokenization features from concept through deployment, scaling the digital asset architecture against established industry standards.
- Own the technical execution for the digital asset lifecycle, including issuance, controlled transfer, and on-chain verification.
- Lead the design, implementation, and testing of the smart contracts that hold customer assets, and coordinate the audit process end-to-end.
- Build and maintain the off-chain integration layer, with secure, reliable communication between the blockchain and internal systems.
- Partner with product and operational compliance teams to translate cryptographic and security requirements into engineering solutions.
What You'll Bring
- 5+ years of software engineering experience delivering complex systems in production.
- Expert-level fluency in secure public chain smart contract development, such as Solidity and the Ethereum Virtual Machine (EVM), with command of industry-standard security frameworks and libraries such as OpenZeppelin.
- Strong command of TypeScript for backend development, API integration, and building off-chain indexing services.
- Hands-on experience with modern Web3 development tooling such as Foundry or Hardhat, and integration libraries such as Viem or Ethers.js.
- Expert-level knowledge of smart contract token standards and the surrounding ecosystem's intricacies.
- A paranoid security mindset, with proven expertise preventing and mitigating common smart contract vulnerability patterns (re-entrancy, oracle manipulation, access control flaws) and managing the audit process.
- The ability to communicate protocol logic and security trade-offs to both technical and non-technical stakeholders across global teams.
- Degree in Computer Science, Engineering, or a related technical field (or equivalent professional experience).
Nice to Haves
- Engineering experience within the finance or high-security sector.
- Familiarity with SVM/Solana or Daml/Canton smart contract and application development.
- Familiarity with C++ to interface with broader platform systems.
- Fluency in modern key management paradigms (e.g., MPC, HSM) and applied cryptography specific to digital assets.
- Experience with advanced wallet architectures such as Account Abstraction (ERC-4337) or multi-signature frameworks.
EQUAL OPPORTUNITY
In an effort to attract, retain, develop and promote the most qualified individuals, CoinDesk is committed to treating all applicants and employees in a nondiscriminatory manner with respect to the terms and conditions of employment, without regard to race, color, religion or belief, sex, national or ethnic origin, ancestry, age, marital status, sexual orientation, gender identity, veteran status/service, physical or mental disability, or any other classification protected by applicable law. This mandate governs all aspects of employment, including recruitment, selection, promotion, training, education, social and recreation programs, compensation, discipline, termination and access to benefits.
ACCOMMODATION
CoinDesk is also committed to providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the application process, please send an e-mail to recruiting@coindesk.com and let us know the nature of your request.
Senior Engineer, Custody Engineering (Tokenization) in London employer: CoinDesk
At CoinDesk, we pride ourselves on being a leading force in the crypto economy, offering a dynamic work environment that fosters innovation and technical excellence. Our culture encourages autonomy and ownership, allowing engineers to tackle complex challenges while contributing to the future of digital assets. With a commitment to employee growth and a focus on collaboration across global teams, CoinDesk provides a unique opportunity for professionals to thrive in a rapidly evolving industry.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Engineer, Custody Engineering (Tokenization) in London
✨Tip Number 1
Network like a pro! Reach out to folks in the crypto and blockchain space on LinkedIn or at events. A friendly chat can open doors that a CV just can't.
✨Tip Number 2
Show off your skills! If you’ve got a portfolio of projects, make sure to highlight them. Whether it’s GitHub repos or personal projects, let your work speak for itself.
✨Tip Number 3
Prepare for technical interviews by brushing up on your smart contract knowledge and coding skills. Practice common problems and be ready to discuss your thought process.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen. Plus, we love seeing candidates who are proactive about their job search.
We think you need these skills to ace Senior Engineer, Custody Engineering (Tokenization) in London
Some tips for your application 🫡
Show Your Passion for Crypto:When you're writing your application, let your enthusiasm for the crypto world shine through! We want to see how your interests align with our mission at CoinDesk and how you can contribute to the future of money.
Tailor Your Experience:Make sure to highlight your relevant experience in software engineering, especially with smart contracts and blockchain tech. We love seeing how your skills can directly impact our Custody Engineering team and the tokenization strategy!
Be Clear and Concise:Keep your application straightforward and to the point. We appreciate clarity, so make sure your achievements and experiences are easy to read and understand. This helps us get a quick grasp of what you bring to the table.
Apply Through Our Website:Don't forget to submit your application through our website! It’s the best way for us to keep track of your application and ensure it gets the attention it deserves. We can't wait to hear from you!
How to prepare for a job interview at CoinDesk
✨Know Your Tech Inside Out
Make sure you’re well-versed in secure public chain smart contract development, especially with Solidity and the Ethereum Virtual Machine. Brush up on industry-standard security frameworks like OpenZeppelin, as you’ll want to demonstrate your expertise in preventing vulnerabilities during the interview.
✨Showcase Your Problem-Solving Skills
Prepare to discuss complex technical challenges you've faced in previous roles. Be ready to explain how you approached these problems, the solutions you implemented, and the outcomes. This will highlight your ability to thrive in a high-stakes environment like CoinDesk.
✨Communicate Clearly
You’ll need to convey technical concepts to both technical and non-technical stakeholders. Practice explaining protocol logic and security trade-offs in simple terms. This skill is crucial for collaborating with product and operational compliance teams.
✨Demonstrate Your Passion for Security
Given the focus on safeguarding user assets, express your 'paranoid security mindset' during the interview. Share examples of how you've managed the audit process and mitigated common smart contract vulnerabilities in past projects.
