Role
Senior Frontend Engineer
Reporting to
Director of AI and Development
Location
Remote - UK
Job Type
Full-time, Permanent
Salary
Competitive, based on experience + benefits + bonus potential
About Us
The Investigo Group (TIG) is a dynamic coalition of tech firms specialising in platform, software, data, AI and bleeding‑edge technology solutions. We offer a broad portfolio of B2B products and services, serving global markets while proudly operating from the United Kingdom.
About You
You are a highly skilled Senior Frontend Engineer who turns complex ideas into elegant, performant and intuitive user experiences. You bring a deep understanding of modern frontend engineering and have a passion for clean, scalable, maintainable interfaces, especially in data‑rich or real‑time environments.
You thrive as a senior individual contributor, bring clarity to ambiguity, and elevate engineering standards through collaboration. You enjoy partnering with designers, backend engineers and machine learning specialists, and can explain technical decisions to both technical and non‑technical audiences.
You have strong experience delivering high‑quality web applications end‑to‑end, and you’re excited to shape tooling, frameworks and best practices of a growing frontend function. You value documentation, accessibility and thoughtful UI/UX.
Keeping up with modern frameworks and trends, you eagerly contribute to projects involving innovation such as real‑time interfaces, visualisation of complex graph structures or AI‑driven capabilities.
Most importantly, you are motivated by impact and want to influence frontend direction across multiple products and a culture of continuous improvement.
About the Team
You will join a small but growing Frontend Engineering team within our Software Development and AI function. The team is cross‑functional with frontend engineers, backend developers, machine learning specialists, UX designers and QA, building intelligent data‑driven products.
Your role will shape how we deliver modern UI experiences across web, desktop, PWAs and browser extensions, tackling real‑time messaging, complex visualisation layers and integrations with LLMs, computer vision and advanced data pipelines.
About the Role
As a Senior Frontend Engineer, you will design, build and optimise high‑quality user interfaces across our suite of data‑driven applications. You’ll collaborate closely with designers, backend engineers and machine learning teams to create seamless, performant, visually compelling experiences. The role is ideal for someone who enjoys solving complex UI challenges, influencing engineering standards, and scaling our frontend capability.
Key Responsibilities
* Design, build and maintain modern, performance‑focused frontend applications across web and desktop platforms.
* Develop and optimise reusable UI component libraries for consistency and efficiency.
* Translate UX wireframes, prototypes and design concepts into high‑quality, accessible UIs.
* Collaborate with backend engineers to integrate APIs, manage data flows and ensure a seamless end‑to‑end experience.
* Champion best practices in coding standards, architecture, documentation and frontend processes.
* Conduct thorough code reviews to maintain code quality, scalability and maintainability.
* Implement testing strategies using Jest, Cypress or Playwright to support robust releases.
* Ensure interfaces meet WCAG accessibility standards.
* Diagnose and resolve complex UI issues, including performance bottlenecks and rendering challenges.
* Suggest new tools, frameworks and approaches to improve developer experience and product quality.
* Work on innovative projects involving real‑time updates, visualisation of complex data structures and AI/ML interactions.
Success in This Role Looks Like
* Consistently delivered high‑quality, scalable frontend applications with clean architecture and strong performance.
* Visible uplift in UI/UX standards, consistency and accessibility.
* A more mature frontend engineering practice with clearer patterns and tooling.
* Effective collaboration with designers, backend engineers and ML teams.
* Reduced bugs, faster delivery cycles and improved reliability through thoughtful testing and proactive decisions.
* Clear ownership and accountability for end‑to‑end feature delivery.
* Meaningful impact on product direction, influencing architecture and UI strategy.
* Positive influence within the team, mentoring and knowledge sharing.
* Proactive innovation, introducing modern techniques and tools.
* Visible contributions to shaping the frontend function as it expands into PWAs, desktop apps and browser extensions.
Why Join Us?
* Shape the future of our frontend engineering function and drive its standards and tooling.
* Work on genuinely interesting, complex challenges: real‑time data interfaces, graph visualisation, AI‑driven interactions, PWAs, desktop apps and browser extensions.
* Collaborate with talented engineers across Software, AI, Data, and UX in a supportive environment.
* Deliver high impact with low bureaucracy; your work directly influences product and culture.
* Modern tech stack and forward‑thinking engineering culture that embraces new tools and best practices.
* Flexible working with hybrid and remote options to support work‑life balance.
* Clear career progression into a Lead level position as the team grows.
* A mission‑driven environment building innovative platforms that solve real‑world problems.
Requirements
We are looking for a highly capable Senior Frontend Engineer with a solid foundation in modern frontend development, a passion for exceptional UX, and the confidence to own complex UI challenges. You should have strong technical ability and a mindset to shape a growing engineering function.
Essential Experience & Skills
* Senior Frontend or equivalent role (typically 6+ years).
* Expertise in HTML5, CSS3, JavaScript/TypeScript, ES6+.
* Deep experience with modern UI frameworks (React preferred, Svelte or similar also considered).
* Experience building scalable, data‑rich applications managing complex state.
* Experience developing reusable component libraries or design systems.
* Proficiency with RESTful APIs and backend integration.
* Solid understanding of accessibility standards (e.g. WCAG).
* Familiarity with Jest, Cypress or Playwright for unit, E2E and automation testing.
* Strong debugging skills for performance, rendering and browser issues.
* Ability to thrive in fast‑paced, iterative, cross‑functional environments.
Soft Skills & Behaviours
* Proactive, self‑driven with ability to work independently and own projects.
* Excellent communication: articulate decisions and collaborate effectively with all stakeholders.
* Growth mindset, open to feedback, learning and exploring new tools.
* Strong problem‑solving focus on maintainable, thoughtful solutions.
* Team‑first mentality, willing to support and mentor others.
* Adaptability in evolving environments and emerging technologies.
Desirable (Not Essential)
* Experience on real‑time interfaces, desktop applications, PWAs or browser extensions.
* Familiarity with visualising complex or graph‑based datasets.
* Exposure to AI/ML‑driven products or working with data/ML teams.
* Portfolio or examples of previous frontend work.
Security Clearance Requirements
* Right to work in the UK.
* Lived in the UK continuously for the past 5 years.
* Not spent more than 6 months outside the UK in total during that period.
* Willing to undergo security vetting as part of onboarding.
Benefits
* Hybrid & remote working models.
* Private medical.
* Inclusive culture.
* Flexible benefits programme.
* Generous holiday allowance.
* Continuous learning and development opportunities.
* Bonus potential based on performance and business factors.
* Discounts on a wide range of products and services.
* Pension scheme contributions with government top‑up.
* EV car scheme.
Our Process
The talent acquisition team will be in touch if you’re successful. The team will arrange a short screening call (max 30 minutes) to learn more about you and what you’re looking for. If all goes well, your profile will be shared with the hiring manager for review. The interview process is tailored to each role but typically the first half is run remotely with a final stage on‑site.
Equal Opportunities
We are committed to equal opportunities and value diversity, equity and inclusion. We do not discriminate based on race, religion, colour, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status or disability status. We provide reasonable accommodation throughout the hiring process and beyond. Please contact us to request accommodations.
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