Junior UI/UX Engineer (Design & Frontend)

Cervus; Hounslow, West of England; Hybrid; GBP 26,000 - 36,000; Full time

Benefits offered by this job

Annual leave 24 days

Cervus Closure days

Private health care

Flexible working

Job summary

Cervus is seeking a motivated Junior UI/UX Engineer to blend UX design with front-end development for data‑driven systems. The role supports operators, analysts, and mission‑critical workflows across the UK and international markets.

The successful candidate will work on intuitive interfaces, real‑time dashboards, and seamless UI integration with backend services within a flexible hybrid setup, including travel within the UK and overseas.

Qualifications

• Familiarity with REST APIs, WebSockets and event-driven architectures.
• Experience building data-rich, live-updating dashboards and interfaces.
• Solid grounding in UX principles, interaction design, and usability heuristics.

Responsibilities

• Translate user needs and workflows into clear, intuitive interface designs.
• Create wireframes, prototypes, and user flows for new features.
• Conduct UX reviews and lightweight usability testing.
• Maintain and evolve the design system for consistency across products.
• Build responsive, performant UI components and visualisations.
• Integrate UI with backend services and APIs.

Skills

REST APIs

WebSockets

Live dashboards

UX principles

Wireframes

Tools

Figma

Sketch

Job description

Wanted: Junior UI/UX Engineer (Design & Frontend)

A Hybrid Role based in the Southwest, UK

About the job

Demand for Cervus’ products and services continues to grow across the Defence sector. We are looking for a motivated, creative, and technically minded Junior UI/UX Engineer to help us scale and delight our users with our data analytics capabilities across the UK and international markets.

The UI/UX Designer & Front-End Developer is responsible for designing and building intuitive, visually consistent, and high-performance user interfaces for complex, data-driven systems. This hybrid role combines creative UX design with front-end engineering skills to deliver interfaces that support operators, analysts, and mission-critical workflows. The designer/developer collaborates closely with product, backend, and delivery teams to ensure seamless integration between UI components and distributed architectures.

Key Responsibilities

UX & Interaction Design

• Translate user needs, workflows, and system requirements into clear, intuitive interface designs.
• Create wireframes, prototypes, and user flows for new features and enhancements.
• Conduct UX reviews, heuristic evaluations, and lightweight usability testing.
• Maintain and evolve the design system to ensure consistency across products.
• Work with product managers to refine requirements into user‑centred solutions.
• Ensure the UI accurately and intuitively reflects system state, telemetry and mission metrics

Front‑End Development

• Build responsive, performant UI components using modern frameworks (Vue preferred).
• Implement real‑time visualisation elements such as charts, maps, timelines, and mission dashboards.
• Integrate UI with backend services, REST APIs, and event‑driven data streams.
• Collaborate with backend and systems engineers to ensure accurate data representation.
• Develop automated unit, integration and end to end tests.

Required Skills & Experience

Technical Skills

• Familiarity with REST APIs, WebSockets, and event-driven architectures.
• Experience building data-rich, live-updating dashboards and interfaces.
• Ability to work with design tools (Figma, Sketch).

UX Skills

• Solid grounding in UX principles, interaction design, and usability heuristics.
• Ability to produce wireframes, prototypes, and user flows.
• Understanding of accessibility approaches or standards.

Soft Skills

• Strong communication and collaboration abilities.
• High attention to detail and user empathy.
• Ability to manage multiple priorities and deliver high-quality work independently.
• Comfortable working in Agile environments

Desirable Skills and Experience

We would love it if you also have:

• Experience leveraging AI tools to help accelerate prototyping, design & Development.
• Understanding of Linux and Dockerised environments including microservices.
• Experience with CI/CD pipelines and automated UI testing.
• Experience of Android App development.

24 days annual leave, 3 Cervus Closure days plus bank holidays (increasing with service), generous pension, discretionary annual bonus, family private health care, life insurance, flexible working, generous learning and development opportunities and awesome colleagues.

Working location:

This role will be primarily based at either our Bristol or Westbury offices for approximately 2 – 3 days per week. It operates within a flexible hybrid working model, with the option for regular home working. The role will also involve travel within the UK and overseas.

Cervus is a performance analytics and technology company helping defence and security organisations make better decisions, faster. Based in the southwest UK with offices in Bristol and Westbury, we value hybrid working, curiosity, collaboration, and continuous improvement.

Joining us means contributing to meaningful, high-impact projects, working with talented colleagues, and helping shape the future of data-driven capability development. This role typically involves 1 –2 days per week in the office and travel within the UK and overseas.

Inclusion & Accessibility

We are committed to creating an inclusive environment where everyone feels valued and supported to thrive. We actively encourage applications from candidates with disabilities and will provide reasonable adjustments throughout the recruitment process and in the workplace.