Senior Front End Software Engineer

You will be part of our top-notch team of Barcelona beach-based developers (ocean views from your workspace 🏖️). You’ll help build the user interface of our award-winning FX platform working shoulder to shoulder with the UX, Product, and Tech teams.

We are seeking a developer who is comfortable working with frameworks like Angular, React, Vue, or similar and is excited to explore the world of Ember. No prior Ember experience is necessary—we'll provide you with all the resources and support you need to master it, eventually enabling you to teach us a thing or two!

This role extends far beyond just working with Ember. We are actively developing a platform-agnostic component library using Stencil.js and web components. This library is designed to provide reusable components that seamlessly integrate across an expanding UI ecosystem, which includes frameworks like Ruby on Rails (RoR), Phoenix, and others we plan to adopt. Our backend is primarily built using Ruby on Rails, with additional services developed in Elixir (Phoenix) to handle specific functionalities.

At Kantox, we value a self-driven mindset and a strong desire to learn and grow. Asking questions and embracing mistakes as learning opportunities are essential traits for thriving in our culture. With a flat management structure, we place great trust in the expertise and contributions of every team member. You’ll collaborate with a highly motivated, diverse, and multidisciplinary team that sees software development as the ultimate team sport.

Your mission within Kantox

As a Senior UX/Front-End Developer, your primary responsibility will be to ensure seamless and intuitive user interactions within our platform. You will collaborate closely with the UX team during daily Stand-Up Meetings (SUMs) to maintain alignment on our shared vision. In this role, you will serve as a key support to the team lead, offering leadership and mentorship to junior and mid-level engineers. Active participation in collaboration with product, QA, and other technical teams will be required for reviewing requirements, drafting specifications, and coordinating development and releases. We are seeking a candidate who demonstrates the potential to eventually assume the role of Tech Lead.

While English is the official working language, our multicultural and diverse environment frequently features Spanish, Catalan, French, Russian, Italian, Bulgarian, and various other languages in common areas. Prior financial background is not a prerequisite; comprehensive training will be provided to facilitate understanding of our platform and its underlying processes.

• Maintain and improve the code base, make sure that all the applications are running correctly
• Develop and test new features, solve issues as they appear, perform due maintenance and upgrades
• Review peer's code and help them improve. Review requirements and make sure they are valid and efficient.
• Raise improvement suggestions, participate in technical discussions, prepare and maintain technical documentation.

• Catering to the clients’ understanding of an intuitive FX platform
• Writing efficient and highly readable code
• Working closely with the UX team and providing own suggestions
• Being responsible for the BE-FE integration and owning frontend projects
• As a senior engineer you will act as a mentor to junior and mid level engineers.
• You will be the de facto right arm to the tech lead.

Who you are

• At least 5 years of professional experience with modern frontend frameworks such as Ember, Angular, React, or Vue.
• Great testing skills: Proven experience in creating and maintaining tests to ensure code quality.
• Experience working with web components (Stencil JS)  is a strong plus.
• Self-motivated and eager to learn and improve continuously.
• Open to making mistakes but committed to doing things the right way.
• Strong team player who values collaboration and isn’t afraid to ask questions.
• Permission to work within the EU is a plus
• Interested in leading and mentoring more junior engineers
• Fluency in English

Our culture

• An environment of innovation, accountability, and constructive feedback
• Hybrid working and flexible hours, allowing you to work when and where you’re most productive while maintaining a healthy work-life balance.
• A diverse and multicultural team of over 40 different nationalities
• Grow your role and build your career with our learning and development opportunities.
• A collaborative and inclusive culture of sharing and teamwork. Build connections for life.
• Some testimonials: “The culture and the people at Kantox make me want to recommend Kantox as a place to work. There is a good balance between learning

What we offer:

• Competitive salary
• Sponsored learning budget
• Free private health insurance
• Free Spanish, English and French lessons

• Relocation package if needed

• Flexible working hours + short Fridays
• Hybrid work model

• 29 days of annual vacations

• Gym discounts and free sports activities

• Restaurant Ticket with monthly credit and regular cross-team lunches

• Fresh fruit and unlimited coffee

• Pizza Fridays

• Beautiful office with incredible 360-degree views of Barcelona

About Kantox

Kantox is a leading fintech company developing sophisticated Currency Management Automation software solutions that help companies to automate their foreign exchange processes and leverage currencies for growth.

We are a 170-person strong team, split between London and Barcelona. So far, we’ve raised over €30 million and became profitable in 2018. Thanks to our clients, we continue to grow at a fast pace. Clients in 75 countries have already exchanged more than USD $18 billion with us!

In October 2022, BNP Paribas signed an agreement for the acquisition of Kantox. Kantox will continue to operate as an independent company, now with the experience and market power of BNP Paribas behind it. The acquisition is subject to regulatory approvals and is expected to be completed in the coming months.

Our Commitment to Diversity, Equity & Inclusion

Kantox is deeply committed to diversity, equity and inclusion both in our hiring practices and in our experiences as a Kantox employee.

We’re proud to be an equal opportunity employer, and encourage all applicants regardless of race, religion, or belief (if any), color, nationality, ethnic or national origin, gender, gender identity, pregnancy and maternity, sexual orientation, age, marital and civil partnership status, or disability status.

First year expectations 

First week

• Computer fully setup
• 1 PR completed 
• Had lunch with FE and UX teams
• Start training videos

First month

• First meaningful PR
• Comfortable with Ember
• 1/2 way through Kantox training

First quarter

• Completed  Kantox training
• Consistently delivering PRs
• Comfortable with different packages being used
• Mentoring junior and mid level engineers

First year

• Fluency with existing framework and packages
• Consistently delivering good quality PRs
• Leading medium to large size feature development
• Participated in a few team activities (lunches, drinks, hikes etc…)