Javascript jobs in United Kingdom

Senior Frontend Software Engineer

We are looking for brilliant, creative, curious, and experienced frontend software engineers to join our applications team. This team delivers internal and customer-facing web applications to manage complex ad campaigns and to provide deep reporting, analytics, and data visualisation capabilities sourced from big data and machine learning technologies. Geospatial data is at the heart of what we do and this team helps make it beautiful, useful, and inspiring. As a tech-first product company, this team works on things that are visible and matter to customers and the business!

Frontend software engineers at Blis are more than just web developers- they’re people who are builders, designers, and problem solvers at heart, people with a passion to make things better. You will help innovate and design new features and products, work with the team to build them, and support and grow them after they’re live. We discuss ‘why’ as much as ‘what’ and ‘how’ in our planning meetings because we want you to see and help shape our future. We value soft boundaries between teams and you’ll get to work with other engineers, data scientists, and product managers to see how it all comes together. As engineers, you’ll help us follow good design principles, especially those inspired by Lean Development, and you’ll enjoy learning, growing, and pushing yourself and the products in new ways. And, of course, you’ll enjoy being part of a team that supports each other through mentoring, brainstorming, and pairing up to solve ambitious challenges.

• Innovate, implement, support, and iterate on our user-facing web applications
• Write and improve robust and highly maintainable Javascript and ReactJS cod
• Ensure our designs and systems are resilient, robust, and secure
• Support and mentor other members of the team
• Commitment to Blis' Inclusion initiatives & 5 step sustainability plan

• Javascript and Typescript
• ReactJS
• CSS and CSS preprocessors
• Advanced HTML and DOM knowledge
• RESTFful, SPA, and MVC concepts and architectures
• Playwright, RTK Query, React Testing Library.

• UX/UI experience
• Fullstack engineering
• Angular/AngularJS
• User behaviour analysis
• Site measurement tools such as Google Analytics, Mixpanel, etc

• 7+ years experience as a frontend engineer exposed to visual-oriented, customer-centric web applications
• Degree in Computer Science, Software Engineering, or similar.

Blis is the only omnichannel DSP that unites telco data, real-world movement patterns, and transactions to deliver a complete view of the consumer. Powered by T-Mobile and built for precision at scale, Blis' omnichannel platform helps marketers map the full purchase journey – from impression to transaction – and expand their audience reach, driving incremental results across every screen.
Founded in the UK in 2004, Blis employs over 300 global employees across 14 offices in 11 countries.

We're leaders not followers

An innovation and growth mindset helps us solve everyday challenges and achieve breakthroughs. Our passion drives us to innovate. We don’t see barriers, just possibilities.

We take ownership and hold ourselves accountable for outcomes, good and bad – and we don’t pass the buck.

We're client obsessed

We do what we say and build trusted relationships with our partners for the long term. We act with integrity. We put our clients at the center of our business. We obsess over the best insights, ideas and solutions to deliver WOW and work with honesty and accountability to get it done.

We're one team

We are empathetic and embrace diversity. Everyone has a voice and can bring their authentic self to work. We care about and support each other – with humility and good humor. Mutual respect and wellbeing are key. We strive to eliminate bias and be open and transparent.

We're action oriented

Speed matters in business, so we're solution-driven and action-oriented. We value simplification and calculated risk taking. We are lean, agile and resourceful self-starters. We collaborate and break silos, working thoughtfully and with urgency to solve problems, while learning from mistakes and celebrating wins.

If this looks like the perfect fit for you or if you just want to have a conversation, please apply and we will get back to you as quickly as possible!