Team lead – MTS GUI development

Join Euronext - Shape capital markets for future generations.

Euronext is the leading European capital market infrastructure covering the entire capital markets value chain from listing trading clearing settlement and custody to solutions for issuers and investors. Euronext runs MTS one of Europes leading electronic fixed income trading markets and Nord Pool the European power market. Euronext also provides clearing and settlement services through Euronext Clearing and its Euronext Securities CSDs in Denmark Italy Norway and November 2025 Euronext successfully acquired a majority stake in the Athens Stock Exchange (ATHEX) further expanding its footprint and strengthening its pan-European market infrastructure.

As of December 2025 Euronexts regulated exchanges in Belgium France Ireland Italy the Netherlands Norway and Portugal host over 1700 listed issuers with 6.7 trillion in market capitalisation a strong blue-chip franchise and the largest global centre for debt and fund listings. With a diverse domestic and international client base Euronext handles 25% of European lit equity trading. Its products include equities FX ETFs bonds derivatives commodities and indices.

MTS is part of the Euronext Group 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.

Working with us means

You will join a dynamic and international environment where innovation quality and collaboration are central to our operations. You will have the opportunity to shape the direction of a major trading platform and play a key role in the development and diversification of MTS within Euronext.

The Euronext Technology & Support Centre

The ambition of the new Euronext Technology & Support Centre is to build a strong team in Greece that will support the Business Lines IT and Operations functions across the Group.

In its initial phase the Centre will focus on two key initiatives:

• Graphical User Interfaces (GUI) Development Team: We will establish an in-house team responsible for developing and supporting Euronexts Graphical User Interfaces which are currently managed by an external provider.

• IT Clearing Test Factory: We will create an in-house Test Factory to support the Clearing House based in Italy.

Initial roles within the Centre will include Backend Developers UI Developers Business Analysts Application Managers and QA Engineers.

Role and key responsibilities

Reporting to the Head of Technology & Support Centre in Athens with a dotted line to the Head of Software Factory at MTS the MTS GUI Team Lead will lead the design and delivery of the new web-based graphical user interface (GUI) for our fixed income electronic trading platforms. You will coordinate the local team and liaise with technical product owners in the central MTS IT team. This is a unique opportunity to shape the technical direction of a complex trading environment and foster a culture of ownership collaboration and continuous improvement.

You will be primarily responsible for:

• Owning the technical direction of the new web GUI ensuring scalability performance and maintainability for a complex trading environment

• Leading a team of frontend and backend engineers in the design implementation and testing of web applications ensuring adherence to coding standards and best practices

• Mentoring and coaching local team members supporting their professional growth and fostering a collaborative culture

• Collaborating closely with the CTO of MTS Head of the Software Factory project managers and technical product owners in the MTS IT team providing estimates technical risk assessments and progress updates

• Translating functional and UX requirements into clear technical designs APIs and implementation plans including decisions on frameworks libraries and patterns

• Establishing and enforcing coding standards code review practices and development processes (branching strategy pull requests definition of done testing strategy)

• Ensuring high code quality through automated testing (unit integration end-to-end) and supporting QA in building and maintaining regression suites

• Collaborating with external vendors and professional service providers on component libraries integration points and delivery milestones

• Working closely with DevOps/platform MTS teams and Euronext IT transversal teams to define CI/CD pipelines build processes and deployment strategies for the web front end and related services

• Contributing to technical documentation architecture diagrams and knowledge transfer material to ensure long-term maintainability

• Supporting incident analysis and production issues related to the new GUI coordinating with central support and operations teams when needed.

This list is non-exhaustive and may vary according to strategic priorities of the group.

Knowledge Personality Skills and Experience Required

• Several years of experience as a tech lead delivering complex web applications ideally in financial markets or other real-time data-intensive domains

• Proven track record in team leadership including task breakdown delegation reviews coaching and conflict resolution

• Strong communication skills in English with the ability to liaise effectively with remote stakeholders

• Experience collaborating in agile environments (Scrum or Kanban) and working closely with product owners business analysts UX/UI designers and QA

• Strong expertise in JavaScript/TypeScript and single-page application frameworks (React Angular or Vue) state management routing and component architecture

• Backend knowledge (e.g. Java backend-for-frontend pattern)

• Solid understanding of web application architecture including REST/JSON APIs WebSockets authentication and authorisation performance optimisation caching and error handling

• Experience designing or working with component libraries/design systems and ensuring consistency across a large application

• Familiarity with AI integration in the software development lifecycle including experience using AI tools for code generation test case creation documentation code reviews or automated refactoring

• Familiarity with CI/CD tools and practices including build pipelines automated tests in the pipeline and deployments to multiple environments

• Experience with automated testing (unit integration end-to-end) and familiarity with common front-end testing tools such as Playwright or similar.

Apply by submitting a CV in English.

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.