Lead Architect – Digital Assets

About the role

Are you ready to shape the future of capital markets

We are building a new Digital Assets team at Euronext with the mission to develop our tokenisation and distributed ledger technology (DLT) capabilities launch products for financial institutions and retail clients and define the next generation of financial market infrastructure - bridging traditional and decentralised finance.

This is a founder-style mandate inside an established regulated institution: the mission the ambiguity and the pace of a zero-to-one build backed by the credibility and scale of Europes leading exchange group.

By joining now you will be part of the core team - directly involved in shaping the strategic direction and playing a decisive role in defining and building the foundations of the project.

About the mission

You will architect the platform behind Euronexts first tokenised offerings. The role spans two live programmes already in design:

• A tokenised issuance trading and settlement platform (equities ETFs and bonds) with a 24/7 central limit order book fractional trading CCP-cleared trades and end-of-day atomic DvP settlement on chain.
• A tokenised collateral-management platform for sovereign bonds enabling real-time repo CCP-margin eligibility and DeFi distribution of govies through gated lending venues.

Both are built on the same conviction: the token is the financial instrument (no wrapper) one ISIN means one ledger and the CSD drives tokenisation. You will turn these principles into a concrete secure and auditable architecture.

What youll do

• Own end-to-end architecture for digital asset solutions combining distributed ledger technology (DLT) with traditional market infrastructure (trading clearing settlement custody and CSD).
• Designing cross-chain topology permissioned chains for the institutional/CCP side (Hyperledger Besu Canton Network candidates) and public chains for DeFi distribution (Ethereum / L2).
• Defining the on-chain compliance model: regulated security-token standards (ERC-3643 / T-REX) KYC-whitelisted wallets on-chain transfer restrictions AML screening on every transfer (Chainalysis / Elliptic) and transaction reporting (MiFIR).
• Architecting custody and key management around MPC solutions (Fireblocks Taurus candidates) including a hybrid model that supports bring-your-own-custody for institutions that require it.
• Set standards for code review testing and secure-by-design delivery.
• Lead threat modelling and security architecture until a dedicated security lead is in place.
• Plan and lead the evolution of the team as products move from build to run.
• Make build/buy/partner decisions on chain custody and audit with Product.
• Collaborating with cross-functional teams product legal regulatory clearing CSD and client working groups to ensure alignment with business objectives and the evolving regulatory framework (DLT Pilot Regime MiFID II MiCA).
• Stay hands-on in incidents and on the highest-risk components.

What you bring

• Deep distributed-systems and DLT architecture experience; fluency with EVM and permissioned chains ( Besu).
• Hands-on understanding of token standards for regulated securities (ERC-3643 / T-REX or equivalent) on-chain compliance and the security pitfalls of smart contracts and cross-chain bridges.
• Proven secure-architecture and threat-modelling skills for high-value financial systems operating 24x7 with zero downtime.
• Working knowledge of capital-markets settlement (delivery-versus-payment CSD CCP/clearing) sufficient to design integrations.
• Player-coach leadership; decisive and calm under pressure.
• Excellent communication and stakeholder-management skills comfortable bridging engineering business legal and regulatory audiences.
• Minimum seven years of experience in solution architecture including at least three years in DLT or blockchain projects.
• Degree in computer science engineering or related field; certifications in cloud or blockchain technologies are a plus.

AI engineering skills (required)

• Define and lead an AI-augmented software-delivery process: coding assistants smart-contract scaffolding AI-generated test suites and a clear view of where AI must not be relied on (security and risk sign-off).
• Set guardrails for AI-assisted code: review gates secret and prompt hygiene and licence/provenance checks on generated code.
• Evaluate and select AI tooling; judge where productivity gains are real.
• Able to specify AI-in-product capabilities ( detection operational triage) and their risk controls.

Join Euronext Shape capital markets for future generations

Join a company where market infrastructure is built on innovation and where every innovation starts with a bold mind asking Whats next. At Euronext we believe change is a starting point not an obstacle. We look for people who see growth opportunities think long term and want to help shape capital markets for future generations. Working with us means: Being part of a European international and diverse team Collaborate across borders with talented colleagues connected by a shared ambition and purpose. Learning as you grow Develop your skills through continuous learning real responsibilities and flexible career paths that evolve with you. Having an impact Contribute to projects that matter in an agile and dynamic environment where your ideas help drive progress. Driving sustainability Play an active role in building transparent responsible and sustainable capital markets for the long term. Together we dont just support markets we help shape their future.

Apply by submitting a CV in English

The CEDS Digital Asset team is dedicated to advancing secure and resilient securities issuance and settlement. We deliver cutting-edge solutions for both domestic and international markets supporting clients throughout the entire value chain. Join us and play a key role in building the next generation of digital asset infrastructure.

Euronext is the leading European capital market covering the entire capital markets value chain from listing trading clearing settlement and custody to solutions for issuers and investors. We operate seven national stock exchanges handling 25% of European lit equity trading. Our products include equities FX ETFs bonds derivatives commodities and indices. Euronext also provides clearing and settlement services through Euronext Clearing and our network of Euronext Securities addition Euronext runs MTS one of Europes leading electronic fixed income trading markets and Nord Pool the European power market. The company has a diverse domestic and international client base.

Find out more about us at:

Euronext Values

Unity

We respect and value the people we work with

We are unified through a common purpose

We embrace diversity and strive for inclusion

Integrity

We value transparency communicate honestly and share information openly

We act with integrity in everything we do

We dont hide our mistakes and we learn from them

Agility

We act with a sense of urgency and decisiveness

We are adaptable responsive and embrace change

We take smart risks

Energy

We are positively driven to make a difference and challenge the status quo

We focus on and encourage personal leadership

We motivate each other with our ambition

Accountability

We deliver maximum value to our customers and stakeholders

We take ownership and are accountable for the outcome

We reward and celebrate performance

We are proud to be an equal opportunity employer. We do not discriminate against individuals on the basis of race gender age citizenship religion sexual orientation gender identity or expression disability or any other legally protected factor. We value the unique talents of all our people who come from diverse backgrounds with different personal experiences and points of view and we are committed to providing an environment of mutual respect.

Additional Information

This job description is only describing the main activities within a certain role and is not exhaustive. It does not prevent to add more tasks projects.