Contract Senior Frontend Engineer (React/Angular)

Everything we do is to empower our clients to move forward. Our purpose is to help our clients develop the capabilities they need to outperform their competitors. Our success is a consequence of ensuring our clients are successful. Our company is built on extraordinary people; we aim to attract, inspire, develop and retain them. YLD is a software engineering and design consultancy; we create digital capabilities for our clients that last beyond our engagement. We have offices in London, Lisbon, Porto.

About the role:

As a Senior Frontend Engineer, you’ll be part of a client team building innovative products. We expect you to be curious, passionate, driven, and enthusiastic. You’ll be proficient at problem-solving, and crafting scalable, resilient, and fault-tolerant architectures. You’ll be an effective communicator and a team player. You and your team will move in a fast-paced engineering environment, achieving outstanding results and delivering exciting projects.

About you:

A YLD Software Engineering Consultant is a highly skilled developer who exemplifies the highest standard in software engineering and enjoys sharing their knowledge and experience with others.

You’ll have the opportunity to build and deliver software within some interesting projects in terms of the product and methodology. We work in an Agile environment (Scrum) with a test-first mindset (actually, writing code without tests should be unthinkable). We are also big advocates of pair programming and nothing is released until we have a code review.

You have a real passion for problem-solving and are an active learner who gets excited by working collaboratively with those around you.

Your day-to-day responsibilities will look like this:

• Crafting excellent products! As a Frontend Engineer, you will be building new features that meet the needs of our clients’ customers, as well as improving their Digital Platform;
• Continuously delivering changes to products, as our client is moving to a full CI/CD model;
• Working closely with your team, regularly collaborating on engineering initiatives, to continually push yourselves to be better;
• Participating in regular show and tells, promoting your work to both your department and the wider company;
• Joining our clients’ internal events, including meeting external speakers, going to quiz nights, etc.

You’ll have the following skills and experience:

• Proven commercial experience of working with CSS, HTML, as well as modern frontend frameworks (e.g. React);
• Deep understanding of CSS fundamentals, including the box model, specificity, and layout techniques (e.g., flexbox, grid);
• Strong proficiency in writing modular and maintainable CSS, using methodologies like BEM or OOCSS;
• Ability to create responsive and adaptive designs with media queries and mobile-first design principles;
• Understanding of cross-browser compatibility issues and ways to address them with CSS;
• Experience in browser developer tools for CSS debugging and performance optimization;
• Experienced in JavaScript, including concepts like asynchronous programming, closures and ES6;
• Strong understanding of semantic HTML and the ability to leverage it for building accessible and SEO-friendly web structures.
• Deep knowledge of accessibility standards and practices, with a history of implementing accessible web applications;
• Experience in distributed version control systems (e.g. Git);
• A strong focus on continuous integration and delivery;
• Strong focus in TDD;
• Familiarity with performance monitoring tools;
• Ability to collaborate with design teams to implement pixel-perfect UI components from design specifications.
• Able to effectively advocate for accessibility best practices and guide design and development processes;
• You can keep a cool head when debugging production issues.

You’ll be:

• Self-motivated, proactive and always looking for ways to improve and develop yourself
• A good communicator, both in writing and verbally. You’ll be able to explain technical ideas and concepts in business-friendly language
• Detail oriented
• Problem-solving skills that balance innovation with pragmatic technology choices to solve business needs
• Used to working in a team-oriented, collaborative environment
• Analytical and problem-solving oriented
• A genuine believer in diversity and fairness
• Available to work a flexible on-call rota, responding to and resolving critical incidents

Our typical Recruitment Process looks like this:

• 1st Interview with someone from the Talent team (30/45 mins)
• Technical Interview with our Senior Developers (1h30)
• Discussion with our Client Partner (30 mins)

We live and breathe our values, and know you will too:

• Growing every day
• Including everyone
• Relationships built on honesty and ethics
• Inspiring solutions
• Winning together

We’re an equal-opportunity employer and value diversity of all kinds. We don’t discriminate based on race, religion, colour, national origin, gender, sexual orientation, pregnancy or maternity, age, marital status, or disability status. Likewise, we also offer a remote-first working environment, meaning that flexible working and work-life balance come as standard for all employees.