Senior Front-End Engineer

Full Time Permanent

Employer Confidential

Company Description

We believe in the power of ingenuity to build a positive human future.

As strategies, technologies and innovation collide, we create opportunity from complexity.

Our diverse teams of experts combine innovative thinking and breakthrough use of technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results.

An innovation and transformation consultancy, we are over 4000 specialists in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our people are strategists, innovators, designers, consultants, digital experts, scientists, engineers and technologists.

We operate globally from offices across the UK, US, Netherlands and Nordics.

PA. Bringing Ingenuity to Life

Job Description

As a team, we transform our clients businesses using a combination of strategic thinking, customer-centric service design, and agile engineering practices. We do this at internet scale driving innovation, and enriching peoples lives. Our skills and talent enable PAs purpose of creating positive a human future in a technology driven world.

As part of our Digital team, youll work alongside colleagues from across PA delivering transformative digital solutions to todays most complex business challenges. Our teams are trusted to deliver and given the space to be awesome. Were an inclusive community for the curious, generous, pragmatic and committed digital practitioner.

As a Senior Frontend Engineer, your key tasks and responsibilities will be to:

Develop high-quality websites and applications using well-crafted HTML, CSS and JavaScript including supporting backend development using Node and other frameworks where required.

Collaborate closely with our designers to develop in-browser prototypes, living style-guides, pattern libraries and re-usable UI components.

Work closely with our in-house QA team to marry unit tests with rigorous end-to-end testing to ensure applications function as expected.

Drive the team with specification workshops, writing acceptance criteria, story estimation, documentation and release planning.

Adopt and evolve PAs engineering standards and practices, to ensure we have a shared and common approach to development and delivery.


4-5+ years commercial experience of developing websites using mobile-first, modular and responsive CSS (e.g. Sass/BEM, CSS Grid etc)

A good understanding of semantic HTML, WCAG accessibility guidelines, common issues across web and mobile devices, and how to fix them

3+ years writing advanced JavaScript (beyond jQuery), ideally using ES6 and frameworks such as Angular, React or Vue, and their associated tooling (Gulp, Webpack etc.) and libraries (Redux etc.)

An appreciation for progressive enhancement, graceful degradation and building for resilience

Experience of unit and integration testing (e.g. Jest/Enzyme/Cucumber)

An understanding of git, branching and continuous integration strategies

An understanding of the full web stack including HTTP, REST APIs and performance debugging

Be a confident problem solver, troubleshooter and debugger in both development and production environments

Ability to convert client requirements into stories and tasks, help define acceptance criteria and provide estimates for delivery.

Ability to clearly communicate with clients and peers, describing technical issues and solutions in both written and meeting/workshop contexts.

A demonstrable eye for good user interface design, typography and user experience

Experience of modern content management systems (including headless mode)

Understanding of good agile principles using Scrum and Kanban

Experience of deploying web applications in cloud environments such as Amazon Web Services (AWS), Microsoft Azure or Google Cloud Platform (GCP)


Client-side scripting and JavaScript frameworks, such as jQuery

Various MVCs, understanding the difference between them, and when one makes more sense than another. E.g. Backbone.js, Angular.js, React.js, Vue.js, Node.js.

Pushing business logic into browser rather than server.

Image authoring tools.

SEO principles and developing compliant applications.

Additional Information

Private medical insurance
Interest free season ticket loan
25 days annual leave with the opportunity to buy 5 additional days
Company pension scheme
Annual performance-based bonus
Life and Income protection insurance
Tax efficient benefits (cycle to work, give as you earn)
Voluntary benefits (Dental, critical illness, spouse/partner life assurance)

PA is committed to building an inclusive and supportive culture where diversity thrives, and all of our people can excel. We believe that greater diversity stimulates innovation, enabling us to fulfil our purpose of Bringing Ingenuity to Life, supporting the growth of our people, and delivering more enduring results for our clients.

We only recruit, promote and reward our people based on their contribution, without regard to gender, race, disability, religion, nationality, ethnicity, sexual orientation, age or marital status.

We welcome international applications, but we are unable to offer sponsorship for work permits, so you will need to have the full right to live and work in the UK. Unfortunately, your application will be automatically rejected if you do not have these rights