Senior Web Developer

Join us as a Senior Web Developer

Shape the future of real-time trading experiences

We are looking for a Senior Web Developer to join our team and help build the next generation of web-based trading platforms in Porto. This is a role for someone who thrives on technical challenges, enjoys ownership and autonomy, but also values collaboration and teamwork.

You will work closely with designers, backend engineers, QA specialists, and product managers to deliver intuitive, high-performance front-end experiences used in real-time financial markets.

Why this role is exciting

• Build modern web interfaces for real-time trading systems
• Work on high-frequency, data-intensive applications
• Be part of a collaborative team where senior engineers have real influence
• Contribute to architecture, performance, and product evolution
• Mentor others while continuing to grow technically

Key Responsibilities

Software Design & Development:

• Design, develop, and maintain high-quality, responsive, and efficient web applications
• Translate business and user requirements into intuitive user interfaces for trading systems
• Integrate front-end components with backend APIs and real-time services (WebSockets)
• Optimize application performance for speed, scalability, and accuracy
• Contribute to architecture discussions, promoting innovation and maintainability
• Maintain product quality and consistency across releases

Quality & Engineering Excellence:

• Write clean, maintainable code following best practices
• Design and execute automated unit, integration, and performance tests
• Identify and resolve bottlenecks and defects proactively
• Ensure compliance with coding standards, security protocols, and confidentiality obligations
• Write and maintain accurate technical documentation aligned with product releases
• Deliver tasks within agreed deadlines, maintaining high standards of efficiency and professionalism

Collaboration & Client Success:

• Work closely with UX/UI, backend, QA, and Product teams
• Translate client needs and feedback into scalable product features
• Support pre-sales and client engagement with technical insights and prototypes
• Contribute to customer satisfaction through reliable, user-friendly solutions
• Promote teamwork, clear communication, and a collaborative culture

Leadership, Mentorship & Continuous Improvement:

• Mentor and guide junior developers, promoting autonomy, accountability, and technical excellence
• Encourage knowledge sharing, code reviews, and collaboration
• Stay current with emerging technologies, frameworks, and best practices in front-end and trading software
• Stay updated on financial markets, trading workflows, and relevant technologies
• Contribute to process improvement initiatives across the development lifecycle

Profile & Qualifications

Technical Skills:

• BSc in Computer Science, Engineering, or relevant field
• 5+ years of professional experience as Angular Developer mastering front-end or web development
• Expertise in JavaScript, TypeScript, React, Angular 13, Angular RXJS, Vue, Prime NG suite, SCSS, Cypress
• Solid understanding of RESTful APIs, WebSocket communication, microservices, and responsive design
• Familiarity with real-time data visualization and trading interfaces preferred
• Basic knowledge of Nginx and Linux OS
• Excellent programming skills, with the ability to produce clear technical documentation
• Deep knowledge of development best practices (Agile methodology, Atlassian suite: Bitbucket, Jira, Confluence) and industry-standard libraries (stdlib)
• Strong expertise in multi-threaded, high-performance, and network programming
• Solid understanding of Linux environments, Version Control Systems, and CI/CD tools (Git, Jenkins)
• Full autonomy in using debugging and profiling tools
• Experience with financial systems, trading workflows, or market data preferred

Soft Skills & Mindset:

• Proven accountability, autonomy, efficiency, and teamwork
• Strong analytical and problem-solving skills, with attention to detail and product quality
• Excellent communication skills with a client-first mindset
• Commitment to confidentiality, continuous learning, and professional ethics

Languages:

• Fluency in English

Why Join Us

• Be part of a pioneering project in real-time trading technology
• Work in a highly collaborative environment that values learning and growth
• Influence architecture and product direction while mentoring others
• Solve challenging technical problems with modern web technologies

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 don’t 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.