Senior Tech Lead - UK in London

Senior Tech Lead - UK in London

London Full-Time 80000 - 100000 £ / year (est.) Home office (partial)
Horizontal Digital

At a Glance

  • Tasks: Lead the technical delivery of innovative digital platforms and mentor a talented team.
  • Company: Join Horizontal Digital, a forward-thinking digital consultancy with a focus on exceptional customer experiences.
  • Benefits: Enjoy 22 days holiday, remote work flexibility, and a defined contribution pension scheme.
  • Other info: Be part of a dynamic team that embraces change and fosters continuous learning.
  • Why this job: Make a real impact by architecting cutting-edge solutions for Fortune 500 companies.
  • Qualifications: 10+ years in Sitecore development and strong leadership skills required.

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

At Horizontal Digital, we hold ourselves to one key belief: You’re only as good as your worst customer experience. This mantra drives our digital consultancy to think beyond the easy answers and create websites, apps, portals, and other experiences that solve customer needs for Fortune 500 companies in intuitive and empathetic ways.

We are looking for an experienced Senior Tech Lead with deep expertise in Sitecore and a forward-thinking approach to AI-enabled delivery. In this role, you will architect and lead the technical delivery of enterprise-scale digital experience platforms, embed AI tooling across the development lifecycle, and mentor a team of engineers to do their best work.

What you’ll do:

  • Technical Leadership & Architecture
    • Lead end-to-end technical architecture and delivery of Sitecore-based digital experience platforms (XM Cloud, SitecoreAI, XP, XM).
    • Define and own technical standards, code quality practices, and architectural patterns across project teams.
    • Conduct solution design workshops and translate business requirements into scalable, maintainable technical blueprints.
    • Oversee integrations with third-party platforms including CRMs, CDPs, DAMs, search engines, and marketing automation tools.
    • Perform and guide technical code reviews, ensuring adherence to best practices and Sitecore conventions.
    • Provide high-level and detailed technical solution estimates.
    • Responsible for delivery of all technical documentation required during discovery.
  • Project Delivery & Estimation
    • Contribute to pre-sales and estimation activities, providing technically accurate and commercially grounded effort estimates.
    • Identify and flag technical risks early.
    • Partner with Project Managers and Solution Architects to ensure estimates remain aligned through proposal, SOW, and discovery phases.
    • Drive re-estimation processes when scope or assumptions materially change.
  • Team & Stakeholder Management
    • Lead, mentor, and grow a team of Sitecore developers, fostering a culture of technical excellence and continuous learning.
    • Collaborate with cross-functional teams — UX, strategy, data, and QA.
    • Act as the primary technical point of contact for clients, presenting solutions clearly and building trust through expertise.
    • Facilitate knowledge transfer and ensure delivery decisions are well-documented.
  • Road-map and Project Planning
    • Accountable for technical solution planning.
    • Facilitate environment setup and configuration efforts in coordination with other disciplines.
    • Responsible for delivery of all technical documentation required during planning.

Who you are and what you bring:

  • 10+ years of hands-on Sitecore development experience across Sitecore AI, XM Cloud, XP, and/or XM.
  • 3-5 years of experience leading design and implementation of digital technology solutions using Agile/Scrum methodologies.
  • Strong proficiency in Sitecore development patterns: JSS, headless/SXA, serialization (Unicorn / SCS), and multisite configurations.
  • Experience with Sitecore CDP, Personalize, Search, Content Hub, Send, or other Sitecore composable DXP products.
  • Solid understanding of Sitecore licensing, deployment architecture, and cloud hosting (Azure / AWS).
  • Familiarity with Vercel, Netlify, Next.js, and React in the context of Sitecore headless delivery.
  • Demonstrated experience integrating AI coding assistants into a professional development workflow.
  • Ability to design structured, AI-readable inputs that enable automation.
  • Core Technical Skills: .NET / C#, JavaScript / TypeScript, RESTful and GraphQL API design, CI/CD pipeline setup and management.

Our UK Benefits include:

  • 22 days holiday
  • 2 floating holiday days
  • 2 volunteering days
  • Defined contribution pension scheme
  • Flexibility + remote working

To help us review your application as smoothly as possible, we recommend submitting a clear, ATS-friendly CV using a simple format and standard headings such as Experience, Skills, and Education.

Senior Tech Lead - UK in London employer: Horizontal Digital

At Horizontal Digital, we pride ourselves on fostering a dynamic and inclusive work culture that prioritises collaboration, innovation, and personal growth. As a Senior Tech Lead in the UK, you will not only lead cutting-edge projects but also have access to extensive professional development opportunities, flexible working arrangements, and a supportive environment that encourages you to push boundaries and embrace new technologies. Join us to make a meaningful impact while enjoying a comprehensive benefits package that includes generous holiday allowances and a commitment to work-life balance.
Horizontal Digital

Contact Detail:

Horizontal Digital Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Tech Lead - UK in London

✨Tip Number 1

Network like a pro! Reach out to your connections in the industry, attend meetups, and engage in online forums. The more people you know, the better your chances of landing that Senior Tech Lead role.

✨Tip Number 2

Showcase your expertise! Prepare a portfolio or case studies that highlight your Sitecore projects and AI integrations. This will give potential employers a taste of what you can bring to the table.

✨Tip Number 3

Ace the interview! Research common interview questions for tech leads and practice your responses. Be ready to discuss your technical leadership style and how you handle team dynamics.

✨Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our team at Horizontal Digital.

We think you need these skills to ace Senior Tech Lead - UK in London

Sitecore Expertise
AI-enabled Delivery
Technical Leadership
Agile/Scrum Methodologies
JSS
Headless/SXA
Serialization (Unicorn / SCS)
Multisite Configurations
Sitecore CDP
Cloud Hosting (Azure / AWS)
Vercel
Netlify
Next.js
React
.NET / C#
JavaScript / TypeScript
RESTful and GraphQL API Design
CI/CD Pipeline Management
Performance Optimisation
Accessibility Standards (WCAG 2.1)
SEO Best Practices

Some tips for your application 🫡

Keep it Simple: When crafting your CV, stick to a straightforward format. Use standard headings like Experience, Skills, and Education. This helps us easily spot what we need without getting lost in fancy layouts.

Tailor Your Application: Make sure to tailor your CV and cover letter to highlight your Sitecore expertise and relevant experience. Show us how your skills align with the role of Senior Tech Lead – we love seeing that connection!

Show Your Hustle: In your application, don’t just list your responsibilities; showcase your achievements! Tell us about times you’ve gone above and beyond or led a project to success. We want to see your hustle!

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it’s super easy!

How to prepare for a job interview at Horizontal Digital

✨Know Your Sitecore Inside Out

Make sure you brush up on your Sitecore knowledge before the interview. Be ready to discuss your hands-on experience with Sitecore AI, XM Cloud, and other relevant products. Prepare examples of how you've led technical delivery and architecture in past projects.

✨Showcase Your Leadership Skills

As a Senior Tech Lead, you'll need to demonstrate your ability to mentor and lead a team. Think of specific instances where you've fostered a culture of technical excellence or collaborated with cross-functional teams. Highlight your experience in guiding developers and ensuring project goals are met.

✨Prepare for Technical Questions

Expect in-depth technical questions related to .NET, C#, and API design. Brush up on your knowledge of performance optimisation and accessibility standards. Be ready to explain your approach to integrating AI tools into your development workflow and how you've tackled challenges in previous roles.

✨Communicate Clearly and Confidently

During the interview, it's crucial to present your solutions clearly and build trust through your expertise. Practice articulating your thoughts on complex topics, and be prepared to answer questions about your decision-making process. Remember, effective communication is key to showcasing your fit for the role.

Senior Tech Lead - UK in London
Horizontal Digital
Location: London

Land your dream job quicker with Premium

You’re marked as a top applicant with our partner companies
Individual CV and cover letter feedback including tailoring to specific job roles
Be among the first applications for new jobs with our AI application
1:1 support and career advice from our career coaches
Go Premium

Money-back if you don't land a job in 6-months

>