Technical Lead
1d ago

giffgaff is the commercial brand of Telefónica UK Limited, a leading digital communications company owned by Telefónica S.

A. We like to do things a little differently here at giffgaff.

We may be a small company, but we like to think big and create some radical waves in the telco land. At the heart of it, we believe in simplicity.

A better way to do mobile. We'd rather you stay with us because you want to, not because there's a nasty contract forcing you to.

It's why we work our socks off every day to keep you and guess what? It works. We're uSwitch Network of the Year 2019.

Our wonderful gaff is located in Uxbridge, in the west of London, but if a commute to that part of the country isn’t warming your cockles - please don’t be put off applying for this role.

The world has changed - particularly when it comes to ways of working. At giffgaff we’ll offer flexibility to suit your needs, with no mandated days to come into the office.

We want you to work from where is best for you and your team, in order to be your best and most productive self (performance pending).

We aren’t about clock-watching or time-keeping. We’re about productivity and a healthy work / life balance. So we would encourage people to attend the gaff during company wide culture days events, and with ample notice.

That said - if working from home isn’t for you and you’re after a working environment that is engaging, energising and collaborative you’re more than welcome to come to the gaff everyday or on certain days per week / month as agreed with your manager.

About the Team

Software engineering is at the heart of what we do here at giffgaff - our agile engineering teams build and support a set of applications and services that combined create our unique user experience on the giffgaff website, enable our internal teams to work in the most productive and efficient ways and enable a whole range of awesome features via modern APIs.

Your Role :

The quality and maintainability of our software is very important for us, we are looking for engineers with real world experience, especially in terms of the whole development lifecycle.

You will help us design and implement tightly focussed APIs, services and user interfaces and, together with your team, you will support them in production.

We want you to share your opinions on how we are doing things - and help us get better! You’ll be embedded into one of our cross-functional product teams to work on a wide variety of creative technical solutions.

Depending on the team profile you may be working on user facing applications, internal tools or processes, or APIs and services implementing our core business logic.

Responsibilities :

  • Technical Leadership Align the business strategy with the technical strategy for your product team Be accountable for the architecture of your products and services and ensure that it is aligned with the broader technology strategy Lead behavioural change within your team, allowing failure, encouraging ownership, facilitating collaboration and shaping the team To coach & mentor your software engineers, encouraging best practices, standards and continuous improvement of practices & processes Track and reduce architectural and technical debt for your products and services
  • Line Management Support, coach and develop high performing engineers through regular 1 : 1s, setting & tracking objectives and managing performance Be responsible for the overall engagement of your engineers, ensuring that each individual is aware of the company, department and team purpose and the role they play Understand the aspirations and career paths of your team of engineers, assist with the preparation of personal development plans and provide support & training as necessary Ensure that your team is resourced appropriately and meets the needs of your product and be accountable for recruitment of engineers within your team, preparing job descriptions, conducting telephone & face to face interviews and onboarding new hires
  • Software Engineering Work with a full-stack attitude within a self-organising, cross functional product engineering team using extreme programming practices - notably pair programming and test-driven development Build, support and maintain automated, fault-tolerant, scalable products and solutions that are continuously delivered into our production environment Leverage your experience and skills to assist your team in establishing the best architecture for your products and services Be technically curious, tackling problems without giving up, and producing solutions that less-experienced engineers can use, maintain, and learn from Know how to develop and follow a sense of purpose.
  • Be willing to point out, own, and fix things that are broken about our company and in your own career track Have a sense of being part of a larger whole with a desire to establish best practices & standards and to continuously improve the discipline of product engineering

    Skills & experience :

  • Qualifications : Bachelor’s degree in computer science, programming, mathematics, or a related field or equivalent experience.
  • Professional certifications in relevant technologies are expected.

  • Experience : Proven track-record of leading high-performing teams of software engineers, coaching & mentoring, setting & tracking objectives and managing performance
  • Essential Skills : Reading & Writing Code, Debugging & Troubleshooting, IDE & OS Basics, Test Driven Development, Pair Programming, Clean Code & Refactoring, Version Control, CI / CD, Algorithms & Data Structures, DI / IoC, Mocks & Stubs, Alerting & Monitoring, Functional & Non-Functional Testing, SOLID Principles, Containerisation & Networking Basics, Twelve Factor App Design, Solution Architecture
  • Plus competency in 7 or more of the following :

  • Client-Side Engineering : CSS3, Cypress, ECMAScript (ES6+), HTML5, Jest, React & React Native, SASS, TypeScript
  • Server-Side Engineering : Java 8 with Maven & Spring, JUnit, NodeJS, PHP with Laravel or Zend, Python
  • Additional Technology : Apache & NGINX, AWS, Jenkins, DynamoDB, PostgreSQL, Redis & Oracle, Docker & Kubernetes, ElasticSearch & Kibana, Grafana & Prometheus, Kinesis
  • Additional Information :

    You will be expected to provide support for your teams products and services outside of normal working hours as a rotational team duty.

    You will have line management responsibility for between three and five software engineers and will influence how the technology budget with your product area is spent.


    This is a chance to work for one of the most sought after UK companies, highly regarded for its community model. In return for your outstanding efforts, you’ll be rewarded with a competitive salary and excellent benefits.

    We believe that hard work should be supported and recognised. This position plays an important role across the business, allowing you to work cross functionality, take on more responsibility and gain experience, which will greatly benefit you in the future.

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