Senior Payments Platform Architect

Senior Payments Platform Architect

Full-Time 80000 - 100000 £ / year (est.) Home office (partial)
Endava

At a Glance

  • Tasks: Design and deliver enterprise-grade payment platforms that drive innovation.
  • Company: Join Endava, a leader in tech consulting with a people-centric approach.
  • Benefits: Enjoy competitive salary, bonuses, career coaching, and flexible work options.
  • Other info: Be part of an inclusive team that values diverse perspectives and innovation.
  • Why this job: Shape the future of payments while working on cutting-edge AI-driven projects.
  • Qualifications: Experience in payment solutions and strong architectural skills required.

The predicted salary is between 80000 - 100000 £ per year.

Technology is our how. And people are our why. For over two decades, we have been harnessing technology to drive meaningful change. By combining world‑class engineering, industry expertise and a people‑centric mindset, we consult and partner with leading brands from various industries to create dynamic platforms and intelligent digital experiences that drive innovation and transform businesses. From prototype to real‑world impact – be part of a global shift by doing work that matters. Endava is on an AI Native journey. As one of OpenAI’s global partners we are committed to exploring (and helping our clients explore) the benefits AI can bring to productivity, effectiveness and accuracy. Our goal is to seize the AI‑catalyzed growth moment to navigate this changing landscape and ensure ourselves and our clients thrive.

We’re looking for a Principal Payments Architect to join our growing team in London. This is a specialised architectural leadership role focused on shaping and delivering enterprise‑grade payment platforms – from gateway and authorisation layers through to clearing, settlement, and financial management. This role is suited to someone who thrives in complex, high‑stakes environments and operates confidently at the intersection of business strategy and technical execution. You will engage across the full lifecycle – from early discovery and architectural shaping through to delivery oversight – ensuring that solutions are scalable, secure, commercially viable, and aligned to long‑term platform strategy. You will be responsible for designing robust, maintainable architectures that address real client challenges. You will define target‑state platforms, challenge assumptions constructively, and ensure that technology decisions are grounded in strong domain expertise and measurable business outcomes.

What You’ll Be Doing

  • You will bring deep expertise in merchant acquiring and payment processing across both online and physical acceptance channels. This includes a strong understanding of gateway architecture, authorisation lifecycles, 3DS/SCA, scheme integrations, tokenisation, fraud decisioning, reconciliation, settlement, and financial ledger integration.
  • Design and review scalable, resilient payment architectures capable of supporting high transaction volumes and demanding availability requirements.
  • Define and govern non‑functional requirements including latency, throughput, availability, recoverability, observability, and security.
  • Shape API strategies, integration models, and event‑driven or distributed system designs that support extensibility and regulatory compliance.
  • Contribute to PCI DSS scoping strategies and secure‑by‑design approaches within cloud and hybrid environments.
  • Participate in architectural governance forums, representing Endava with clarity and authority.
  • Support pre‑sales and bid shaping activities by defining credible, commercially grounded target‑state solutions.
  • Translate architectural decisions into clear executive narratives, articulating trade‑offs, risks, and investment implications.

You will be comfortable speaking the language of enterprise, solution, and data architects, and equally confident engaging in detailed technical discussions with engineering teams or strategic conversations with C‑level stakeholders. Where appropriate, you will explore the application of emerging capabilities – including AI‑driven optimisation, intelligent routing, fraud modelling, and AIOps – ensuring innovation is grounded in practical, value‑led use cases.

Qualifications

  • We’re seeking someone with significant experience designing and delivering enterprise‑grade payment solutions in regulated environments.
  • Demonstrate deep knowledge of acquiring, gateway processing, and scheme connectivity.
  • Be fluent in architectural principles and able to apply them pragmatically across APIs, integration layers, distributed systems, and cloud‑native services.
  • Have experience operating in complex, multi‑stakeholder environments with formal governance structures.
  • Be comfortable defining target architectures and guiding delivery teams to implement them effectively.
  • Have experience with major cloud platforms (AWS, Azure, or GCP) and modern engineering and delivery practices.
  • Bring experience in pre‑sales, technical discovery, or executive‑level stakeholder engagement.

You communicate clearly, think strategically, and approach complex problems with both architectural discipline and collaborative intent.

Additional Information

Discover some of the global benefits that empower our people to become the best version of themselves:

  • Finance: Competitive salary package, share plan, company performance bonuses, value‑based recognition awards, referral bonus.
  • Career Development: Career coaching, global career opportunities, non‑linear career paths, internal development programmes for management and technical leadership.
  • Learning Opportunities: Complex projects, rotations, internal tech communities, training, certifications, coaching, online learning platforms subscriptions, pass‑it‑on sessions, workshops, conferences.
  • Work‑Life Balance: Hybrid work and flexible working hours, employee assistance programme.
  • Health: Global internal wellbeing programme, access to wellbeing apps.
  • Community: Global internal tech communities, hobby clubs and interest groups, inclusion and diversity programmes, events and celebrations.

At Endava, we’re committed to creating an open, inclusive, and respectful environment where everyone feels safe, valued, and empowered to be their best. We welcome applications from people of all backgrounds, experiences, and perspectives—because we know that inclusive teams help us deliver smarter, more innovative solutions for our customers. Hiring decisions are based on merit, skills, qualifications, and potential. If you need adjustments or support during the recruitment process, please let us know.

Senior Payments Platform Architect employer: Endava

Endava is an exceptional employer that prioritises both technology and people, fostering a dynamic work culture in London where innovation thrives. With a strong commitment to employee growth through career coaching, diverse learning opportunities, and a focus on work-life balance, Endava empowers its team to excel in their roles while contributing to meaningful projects. The inclusive environment encourages collaboration and creativity, making it an ideal place for professionals seeking to make a real impact in the payments landscape.

Endava

Contact Details:

Endava Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior Payments Platform Architect

Join the IT Consultancy Buzz

Get involved in local or virtual IT consultancy meetups and forums. This is where we can rub shoulders with industry professionals, get insights into what Endava values, and even spot unadvertised opportunities. Don't miss out on these chances to make a name for ourselves in the IT world!

Show Off Your Skills

Create a personal project or case study relevant to the challenges Endava might face. Use platforms like GitHub or Medium to share your findings. This not only demonstrates our consulting skills but shows a proactive attitude, making us stand out from the crowd when applying for that full-time gig.

Leverage LinkedIn for Connections

Follow and engage with the relevant thought leaders and influencers in IT consultancy on LinkedIn. Share insightful content and join discussions to gain visibility. A well-placed comment or shared article could catch the attention of someone at Endava!

Direct Apply to Endava

Let's not forget to apply directly through the Endava website! Tailor your application to showcase our understanding of their consulting style and how we can contribute to their projects. A personalised approach can make a huge difference in landing that full-time position!

We think you need these skills to ace Senior Payments Platform Architect

Architectural Leadership
Payment Processing Expertise
Gateway Architecture
API Strategy Development
Cloud-Native Services
PCI DSS Compliance
Technical Discovery

Some tips for your application 🫡

Showcase Your Problem-Solving Skills:In IT consulting, it's all about problem-solving, so make sure your CV highlights your analytical skills and any relevant projects you've tackled. Mention specific technologies or methodologies you've used to resolve issues or improve processes; this shows you can think critically and deliver results, which is vital for us at Endava.

Highlight Relevant Certifications:Certifications like ITIL, PMP, or even specific tech stack qualifications can really make you stand out. Make sure to include these in your CV, as they not only demonstrate your expertise but also your commitment to staying current in the field. We love seeing candidates who are proactive about their professional development!

Tailor Your Cover Letter:Your cover letter is your chance to connect personally with us at Endava. Share stories about your experiences in IT consulting, and how they shaped your desire to join our team. Mention why you’re excited about this particular role, and how you see yourself contributing to our projects.

Keep It Clear and Concise:We're all busy, so make sure your application is easy to read. Use bullet points for key achievements, and don’t overload us with jargon. A clean, professional layout goes a long way. Remember, the clearer your application, the more likely we are to invite you in for an interview!

How to prepare for a job interview at Endava

Brush Up on Your Technical Skills

For an IT consulting role, be ready to demonstrate your technical prowess. You might face questions on systems integration, cloud technologies, or even troubleshooting specific software. If you have experience with tools like AWS, Azure, or even specific programming languages, make sure you can talk about them fluently.

Showcase Your Problem-Solving Approach

IT consulting is all about solving problems for clients. Think about how you can illustrate your approach to a past challenge using the STAR method (Situation, Task, Action, Result). It's a great way to show how you tackle complex issues and come up with effective solutions.

Know the Business Impact of IT Solutions

When discussing your experiences, focus not just on the tech solutions you implemented, but also on their business impact. Employers want to see that you can connect IT with organisational goals. Prep examples that highlight how your tech contributions improved efficiency or reduced costs for past clients or projects.

Prepare for Behavioural Questions

Since IT consulting often involves teamwork and client interactions, expect behavioural questions that assess your interpersonal skills. Be prepared with examples that demonstrate your adaptability, communication skills, and how you handle client feedback. Before the interview, think of situations where you worked closely with clients to create effective IT strategies or changes.