Telecommunication Engineer jobs in United Kingdom

About HL and the opportunity.

We’re building the next generation platform for one of the UK’s largest financial services companies, trusted by over 2 million clients and managing c.£150 billion in assets. This is your opportunity to shape technology that will redefine how people invest and achieve financial freedom.

You will build our next generation Unified Client Experience (UCX) frontend that will streamline client journeys across a range of products and services, in both web and mobile domains. It’s an opportunity to design, architect and build a modern frontend using latest technologies and best practices to transform our savings and investment platform.

The UCX team consolidates the efforts of the whole organisation, transforming client journeys and delivering on HL’s vision to give people financial freedom. You will work with like‑minded people from business, product and engineering functions to develop and refine client journeys covering onboarding, KYC, account management and investment workflows in a secure and compliant environment.

By joining us, you’ll help deliver innovative and scalable solutions that make investing easier and more accessible to millions of users across the UK.

Be part of HL’s future. Be part of the future of investing. Shape it with us.

• Building and deploying scalable, secure, and compliant software at pace.
• Integrating HL web and mobile apps with existing and new systems to deliver a seamless client experience across a range of products and services.
• Delivering value iteratively, always focused on customer outcomes and short feedback loops.
• Creating and visualising application metrics to help understand usage patterns and anomalies.
• Reviewing code with peers, collaborating across teams to solve problems, with an eye for both quality and velocity.
• Innovating, bringing new ideas to the table for adoption throughout HL Digital.
• Driving technical decisions and shaping how we build our services.
• Working closely with Product Managers and business stakeholders to align engineering outcomes with HL’s mission and client value.
• Championing a culture of continuous learning, cross‑functional collaboration, and inclusivity with a growth mindset.

• 5–8 years of experience building user‑facing applications across web and mobile platforms, ideally in regulated environments like Investment, Asset, or Wealth Management.
• Strong skills in React or React Native.
• Comfortable integrating with secure APIs, handling authentication flows, and working with design systems via tools like Figma.
• Experience deploying apps using platforms like App Store, or Play Store.
• Familiarity with CI/CD pipelines, testing frameworks, and DevOps principles.
• Passionate about mentoring, code reviews, and collaborative development.
• Energized by fast‑paced, regulated environments where speed, quality, and adaptability matter.

• React / React Native / TypeScript
• JavaScript / HTML / CSS
• Figma / Vercel / Git
• Testing frameworks: Jest, Cypress, Appium
• CI/CD pipelines: GitHub Actions, Harness, Github

• Familiarity with RDBMS/NoSQL for data modeling awareness

3 Stage Interview

Stage 1 – Discussion with our Hiring Manager (30mins): A chance to talk with our Hiring Manager in more detail about the role, our tech stack and some of the problems we solve every day. Here, we’ll dig a bit more into some of your experiences, understand the processes you’re familiar with and the technologies you’ve used to deliver end user value.

Stage 2 – Technical (70mins): For the technical part, we’d like you to sit down with some of your potential peers to work through a technical solution or a coding problem. We’ll be looking together at where a sample piece of technology / code has issues and how we might address them.

Stage 3 - Culture Fit (30mins): In our Cultural Fit interview, we’ll be looking to learn more about your past experiences, what keeps you motivated, where we may be able to help you improve further, key decisions you’ve helped to make and issues you’ve resolved.

We offer a competitive salary of up to £115,000, depending on experience, alongside a generous performance‑based bonus scheme.

Your total reward package includes:

• Up to 19% pension contribution - helping you plan confidently for the future.
• Private medical insurance - giving you peace of mind and access to top‑tier healthcare.
• A wide range of excellent benefits, from lifestyle perks to wellbeing support, designed to help you thrive both in and out of work.

We’re based in the stunning Paddington Central offices at 4 Kingdom Street, a modern workspace designed to energise your day and elevate collaboration.

• Landscaped rooftop gardens - perfect for a breath of fresh air or informal catch‑ups.
• London’s highest rooftop basketball court - yes, really!
• Wellness amenities including showers, lockers, hairdryers, and fresh towels.
• Cyclist‑friendly with secure bike storage and drying rooms.
• Stylish lounge areas, booths, and breakout spaces for focused work or relaxed chats.
• Canals location near Little Venice, with floating restaurants, coffee shops, and a seasonal pop‑up garden bar.
• Unbeatable transport links - just steps from Paddington Station and the Elizabeth Line.

We embrace a hybrid working model that gives you the best of both worlds:

• 2–3 days a week in the office to connect, collaborate, and enjoy everything the space has to offer.
• Remote flexibility for deep focus, work‑life balance, and personal productivity.

This is a full‑time role, working 37.5 hours per week, Monday to Friday.

Here at HL, we’re the UK’s number 1 investment platform for private investors, based in Bristol. For more than 40 years we’ve helped investors save time, tax and money on their investments.

To achieve our mission, we believe we have a workplace like no other, with constant learning, dynamic teams, and a great ethos. We're steered by core values that promote service, quality, innovation, and opportunity in everything we do.

• Discretionary annual bonus * and annual pay review
• 25 days * holiday plus bank holidays and 1-day additional Christmas closure
• Option to purchase an additional 5 days holiday **
• Flexible working options available, including hybrid working
• Enhanced parental leave
• Pension scheme up to 11% employer contribution
• Income Protection and Life insurance (4 x salary core level of cover)
• Private medical insurance*
• Health care cash plans - including optical, dental, and out‑patient care
• Health screening programme
• Help@hand - confidential support including mental health counselling and remote GP
• Wellhub - unlimited access to fitness provider s and w ellness c oach sessions
• Variety of travel to work schemes with bike storage and shower facilities
• Inhouse barista and deli serving subsidised coffee and sandwiches
• Two paid volunteering days per year

* dependant on role level.

** only available to select during our annual benefits window, in November each year.

Hargreaves Lansdown is an inclusive employer that values diversity in its workforce. We encourage applications from all individuals without regard to race, religion, gender, sexual orientation, national origin, disability or age.

This role may also be available on a flexible working or part‑time basis – please ask the Recruitment & Onboarding team for more information.

Please note, we are unable to provide employment sponsorship to candidates.