Job Description
What you’ll do
Technical Design Authority – Infrastructure is a senior technical role within the technology function, accountable for design, delivery, and optimisation of the Telco Cloud solutions. This role ensures that these mission-critical systems remain robust, future-ready, and aligned with the organisation’s strategic and operational goals.
The position is responsible for the end-to-end lifecycle of technology used to provide services within the domain.
Capacity management and system optimisation is a continuous priority, with the role focused on enhancing reliability, efficiency, and cost-effectiveness through performance management, analytics, and technology upgrades.
* Provide technical leadership to the Design community spanning strategy to implementation and interfacing with various internal teams and external teams to ensure technology meets customer needs and also fulfils regulatory requirements.
* Collaborating and helping to direct key development partners and internal teams to deliver new and enhance existing strategic systems capability.
* A subject matter and technical expert in a specific technological capability
* Collaborate with partners to produce clear low/high level designs and a development plan, driving development using practical knowledge of best practices and focussing on development quality and functional capability delivery.
* Drive effective partner management, ensuring delivery standards are defined, maintained and continuously improved.
* Act as a point of contact to support resolution for issues relating to defects, escalating as appropriate, assuring RCA, appropriate testing and continuous improvement, to enable effective resolution and future avoidance.
* Provide active guidance to partners to support capability maturity, evolving with technology and industry trends, applying appropriate measures for continuous improvement.
* Manage development performance in line with the domain’s strategic, critical development metrics (KPIs).
Qualifications
Who you are
* Demonstrable experience of providing technical, decision making and problem solving leadership for a domain and can demonstrate setting quality standards for delivery and design.
* Demonstrate the ability to communicate with multiple stakeholders within the organization to act as the liaison between the business, other technical communities and the 3rd party delivery teams to ensure the delivery of the business requirements. This should include the ability to convert business requirements into a technical solution.
* Knowledge and experience of all aspects of development with a good knowledge of software development practices, processes, and tooling to support large scale enterprise solutions
* Experience with both manual and automated tooling enabling rapid development and delivery of software
* Experience of working with a range of infrastructure technologies, software delivery and programme delivery methodologies for example, but not limited to; Cloud (Microsoft Azure, AWS, Google), on-premise NVFI and CNF, and SaaS, PaaS models,
Worried that you don’t meet all the desired criteria exactly?
We know that everyone is unique, with multiple aspects to their identity and different experiences behind them. We are passionate about Inclusion for All and creating a workplace where everyone can thrive, whatever their personal or professional background. If you’re excited about this role but your experience doesn’t align exactly with every part of the job description, we encourage you to apply as you may be the right candidate for this role or another role, and our recruitment team can help you see how your skills fit in.
Additional Information
What we offer
We care about our people’s success by offering great pay, bonuses, up to 28 days off plus bank holidays, and paid time for charity work. You can personalise our benefits for you and your family, like discounts, vouchers, a pension plan and loads more. We help with your career through our amazing learning tools and top-notch parental leave policies.
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Need to know
We are regulated by the Financial Conduct Authority and all offers of employment for this role are subject to background checks, including criminal (DBS) and financial checks to meet the regulators standards.
We believe everyone should have the opportunity to interview for a role that matches their skills. In collaboration with our Talent, Diversity & Inclusion teams and our employee-led DEI Networks, we identified a range of reasonable adjustments to help you feel comfortable and perform at your best self during the interview process. If you require any reasonable adjustments or have an accessibility request as part of your recruitment journey, for example, extended time or breaks in between online assessments, a sign language interpreter, or assistive technology, please contact your recruiter directly or email jobs@three.co.uk for guidance.
We use AI in different parts of our business to boost innovation, improve efficiency, and create new opportunities. We know many candidates use AI to fine-tune their CVs or prepare for interviews, but what we really care about is your unique experiences and achievements.
During the interview, we want you to rely on your own knowledge and skills to show us who you really are—your personality, creativity, and abilities. Above all, we’re looking for authenticity and can’t wait to get to know the real you.
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