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Shape the future of capital markets as a Blockchain Smart Contract Engineer at Euronext.
Build innovative DLT solutions, join a global team in Paris, Porto, Milan or Rome.
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 Europe's 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.
You will primarily be responsible for
- Designing and implementing all smart contracts constituting the core of our digital assets platform.
- Writing property-based and fuzz tests; maintain invariants on supply and ownership.
- Preparing contracts for external audit and remediate findings.
- Designing the tokenization engine for reuse across multiple instrument types.
- Using AI-assisted contract scaffolding and refactoring, with disciplined human review of every generated line.
- Generating property and fuzz test suites for smart-contract invariants with AI.
- Using AI for vulnerability triage and audit preparation, treating output as leads to verify rather than conclusions.
- Maintaining prompt hygiene — never expose keys, addresses, or unaudited logic to external AI services.
Your profile
- Strong experience with Solidity / EVM experience; permissioned-chain patterns (e.g. Canton, Besu).
- Deep understanding of ERC-20 and extensions.
- Experience with property-based and fuzz testing; gas and security profiling.
- A precise, security-first mindset and experience working with auditors.
- Excellent analytical, problem-solving and communication skills.
- Degree in computer science, engineering or a related field, with three or more years of relevant experience.
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, “What’s 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 an international, diverse and innovative team.
- Developing your skills through continuous learning and real responsibilities.
- Contributing to projects that matter in a dynamic environment.
- Playing an active role in building transparent, responsible and sustainable capital markets.
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 CSDs. In addition, Euronext runs MTS, one of Europe’s 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.com