Javascript developer css Work, Jobs in London, England (with Salaries)

Lead Developer (Mobile)
Post Office Ltd —London
- Full-time
- Leadership
- Annual leave
- Employee assistance programme
Senior Accessibility Engineer
Unily —London
- Full-time
- Hybrid work
- AI
- Communication skills
Quick apply
Senior Developer - Salesforce Marketing Cloud
MAP —London
- Leadership
- Communication skills
Quick apply
Senior Accessibility Tester
Atos —London
- Mentoring
- Communication skills
- Annual leave
Technical Search Director
Croud —London
- £66,400 - £76,150 a year
- Hybrid work
- Mentoring
- Training & development
- Communication skills
- Life insurance
Quick apply
6d
Manager - Salesforce Marketing Cloud Development
MAP —London
- Mentoring
- Leadership
- Communication skills
Quick apply
Technical Lead (AI & MACH)
AKQA —London
- Hybrid work
- Continuous improvement
- AI
- Communication skills
Senior Engineering Lead, Index Distribution
London Stock Exchange Group —London
- Full-time
- Hybrid work
- AWS
- Analysis skills
- Mentoring
Optimisation Manager Contract
VML/WPP Enterprise Solutions —London
- Agile
- Analytics
Quick apply
6d
Optimisation Manager Contract
VML —London
- Hybrid work
- Agile
- Analytics
Quick apply
AI Product Engineer
Universal Music Group —London
- Full-time
- Machine learning
- No degree
- AI
15h

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Lead Developer (Mobile)

Post Office Ltd -
London

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Job details

Permanent | Full-time

Benefits

Annual leave
Company pension
Employee assistance programme
Employee discount

Qualifications

Jira
Performance tuning
Cloud infrastructure
iOS development
Relational databases
Data structures
Encryption
Test automation
Git
Test-driven development
Build automation
Software development operations experience
CI/CD pipelines
Confluence
Distributed systems
SCSS
Continuous integration
REST
Scrum
WCAG
GitHub
DynamoDB
DevOps implementation
Android development
Leadership
React Native

Full job description

Summary

Salary: Competitive plus comprehensive benefits package
Grade: 3A
Reporting Line: Digital Engineering Manager
Contract Type: Permanent
Working pattern: Hybrid
Location: London
Closing Date: 17th August

What to expect

The Lead Developer (Mobile) will define the technical direction, lead and mentor a team of Senior and Mid‑Level Software Engineers, and own the end‑to‑end development and delivery of the Post Office Mobile Travel App and in‑branch Government Service applications. You will be a key driver in leveraging modern engineering practices and cloud services to deliver secure, high‑quality, scalable mobile experiences across iOS and Android.

Success will be achieved by applying well‑architected code, robust full‑stack integration with Post Office digital services, strong CI/CD automation, and a culture of technical excellence. This role is for an experienced leader who has delivered eCommerce/retail‑grade mobile applications at scale, with production experience in React Native (TypeScript) and cloud platforms (e.g., AWS), and who thrives in Agile environments.

How our people behave is as important to Post Office, as what is delivered. The Lead Developer (Mobile) will role model the Post Office behaviours and demonstrate a Postmaster first mindset.

What we can do for you

Our business is changing and we understand that attracting the right talent is pivotal in driving the positive change needed, to help us achieve our ambitious goals. Beyond a competitive salary, we offer a comprehensive benefits package that includes:

27.5 days annual leave (rising to 30 after 2 years), plus bank holidays
Up to 18% on target bonus opportunity
Annual car allowance
Generous pension scheme with minimum 10% employer contribution
Access to 24/7 digital GP services and our Employee Assistance Programme
6 x Life assurance and income protection after 12 months service
Over 400 online courses, mentoring, apprenticeships, and development programmes
Access to our benefits platform for exclusive discounts & savings

Click here for a detailed overview of our benefits

What you’ll need to succeed

To be successful in this role you will be versed in the below:

2–3 years of hands‑on team leadership and mentoring (goal setting, feedback, coaching, performance growth), with experience coordinating multiple workstreams
Strong experience using React Native
5+ years’ experience developing applications in a variety of languages and frameworks including ReactNative, TypeScript, Java, JavaScript, React, HTML, SCSS / CSS.
Production experience building and scaling ReactNative iOS and Android apps, including navigation, state management, offline patterns, native modules/bridging, and performance tuning (e.g., Hermes, Flipper).
Experience of cloud-native micro-services and distributed systems (ideally AWS)
Experience with serverless cloud services (Lambda/Api Gateway/Cognito/DynamoDB)
Understand and appropriately implement the WCAG (Accessibility) principles, guidelines and success criteria implemented
iOS and Android app store submissions, code signing/provisioning, TestFlight/Play Console, Fastlane, phased rollouts, and OTA update strategies (e.g., CodePush/EAS Update)
Strong understanding of data structures and architectures, using relational and/or non-relational database approaches with the ability to query using SQL
A strong understanding of test-driven development and testing conventions
Experience of developing and supporting RESTful APIs
Practical experience designing and maintaining CI/CD pipelines (GitHub Actions), including automated builds, tests, static analysis, security scans, and release automation
Experience of release processes and governance
Experience of full-stack software development principles, architecture and conventions
Experience of a wide range of SLDC methodologies, including Waterfall, Agile Scrum, Kanban, behavioural-driven development (BDD), and continuous integration
Understanding of security by design (OWASP MASVS/Mobile Top 10), secure storage, certificate pinning, secrets management, encryption in transit/at rest, GDPR/privacy considerations
Significant experience with documentation, workflow, and code versioning tools, such as Confluence, Jira and Git respectively.

About us

At Post Office Ltd, we’re proud to be at the heart of communities across the UK, upheld by the dedication and service of our postmasters. We offer essential services that people rely on every day, from parcels and banking to identity and government services. While we continue to evolve with digital innovation, our commitment to personal, face-to-face service remains core to who we are.

Our journey is one of reflection, growth, and meaningful change. We’re looking for people who think differently. Those with resilience, purpose, and a deep sense of responsibility to our postmasters, partners and the communities they serve. If you're driven by the chance to make a real impact and help shape a future, built on progress and integrity, we’d love to hear from you. For more details visit [email protected]

Application Guidance

Our commitment to embracing diversity extends beyond just words. While we’ve outlined key skills above, we recognise that great candidates come from a variety of backgrounds. We value diverse perspectives and are committed to building an inclusive workplace where everyone can thrive.

As a Disability Confident Employer, we recognise the value people with disabilities can bring to our business. If you require any reasonable adjustments throughout the recruitment process or would like further details on the job description, please contact [email protected]

We’re thrilled by your interest in this opportunity and truly value every application we receive. Please note the advert may close early if we receive a high volume of applications. Unfortunately, we’re unable to provide individual feedback on all submissions.

Apply Now

Refine Your Search

javascript developer css jobs in london, england

Lead Developer (Mobile)

Senior Accessibility Engineer

Senior Developer - Salesforce Marketing Cloud

Senior Accessibility Tester

Technical Search Director

Manager - Salesforce Marketing Cloud Development

Technical Lead (AI & MACH)

Senior Engineering Lead, Index Distribution

Optimisation Manager Contract

Optimisation Manager Contract

AI Product Engineer

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