Senior Web Engineer

Senior Web Engineer

Full-Time 59400 - 72600 £ / year (est.) Working from home possible
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At a Glance

  • Tasks: Architect high-performance web experiences and prototype AI-driven features for a leading B2B SaaS.
  • Company: Join Supermetrics, a fast-growing tech company transforming marketing data into insights.
  • Benefits: Competitive salary, equity, remote work allowance, health benefits, and a personal learning budget.
  • Other info: Be part of a diverse, collaborative team committed to innovation and inclusivity.
  • Why this job: Make a real impact on marketing technology and shape the future of web engineering.
  • Qualifications: 6+ years in web development, experience with Astro.js, and strong analytical skills.

The predicted salary is between 59400 - 72600 £ per year.

Senior Web Engineer Architect high-performance web experiences for top-tier B2B Saa S—and set the new technical standard for modern marketing sites.

Our website is our most important marketing asset — where pipeline starts, brand is formed, and every campaign dollar lands.

We need a web engineer who sets our technical direction rather than taking tickets: an elite engineering mind who understands that code is a lever for revenue.

You’ll work on a stack built on Astro. js, Type Script, and Sanity, integrated with Hub Spot, GTM, Google Analytics, Intercom, and Zendesk.

In this role, you will…Own the systems architecture for our marketing website — authoritative decisions on platform, stack, infrastructure, and performance, with daily hands-on work in the codebase Prototype and deploy AI-driven features — personalisation, dynamic content, intelligent search — with AI tooling as a default part of your workflow Design the technical foundation for experimentation at scale: A/B testing frameworks, personalisation middleware, and rapid iteration pipelines Architect the Sanity content infrastructure for a “Create Once, Publish Everywhere” workflow, including content models, reusable blocks, and ingestion pipelines Own the website data layer, event architecture, and tracking standards; monitor and optimize Core Web Vitals, uptime, and technical SEO/AI visibility continuously Provide technical oversight of external agencies and contractors: enforcing PR standards, CI/CD pipelines, and ensuring output meets our architectural bar Bring data-backed recommendations to senior stakeholders and colleagues, and raise the bar for web engineering across the organization This position is for you if you have…6+ years of web development experience ideally in a B2B Saas environment Practical Astro. js and Sanity experience; Next. js/Type Script backgrounds considered with strong Sanity proficiency A track record of guiding major web projects end-to-end — architecture through launch — with rigorous engineering workflows: version control, PR reviews, deployment pipelines, and incident management Experience designing experimentation and personalisation platforms: A/B testing systems, dynamic content delivery, and scalable growth architecture Technical SEO and AI visibility knowledge at the systems level, plus deep analytics and tracking experience across GTM, event architecture, and platforms like Hub Spot, Marketo, and Segment Daily use of AI development tools (Cursor, Git Hub Copilot, Claude, etc.) and a track record of shipping AI-driven site features The ability to communicate technical trade-offs clearly to non-technical stakeholders Benefits we offer…Competitive compensation package, including equity Great work equipment and home office allowance for remote locations Health care benefit and leisure time insurance1,000 annual personal learning budget Sports and wellbeing allowance Join us on our mission to make data a marketing superpower Supermetrics builds an end-to-end marketing intelligence platform, with 15% of global advertising spend reported through our products.

We help marketers turn their data into insights that improve business results and predict the best next step.

Our technology streamlines marketing data for over 200,000 businesses through a network of agencies and customers like Shopify, Hub Spot, and Nestlé.

Since our founding in 2013, we’ve grown from a one-person shop to a key player in the industry—and we’re just getting started!We're a team of 400+ growth-minded people from diverse backgrounds.

Together, we make a multicultural, resourceful, and collaborative team.

Supermetrics operates on trust, transparency, and a keen customer focus.

Forward-looking and action-oriented, we work hard to raise the bar in our industry.

As team players, we help each other and win together.

We're hiring for a diverse, skilled, and collaborative team and building an inclusive workplace where everyone is treated fairly and respectfully.

Supermetrics is committed to providing a welcoming and inclusive workplace for all.

We believe that a diverse workforce is a strong workforce, and we are dedicated to creating an environment where everyone feels valued and respected.

It all started with a Google t-shirt...

Read the rest of our growth story at supermetrics. com/about.

Our commitment to transparent hiring: At Supermetrics, we leverage AI in our early recruitment stages to efficiently match your skills to our roles and provide a frictionless scheduling experience.

While AI helps us operate faster and fairer, all final hiring decisions and deep-dive interviews are conducted by our human team members.

Senior Web Engineer employer: Supermetrics

Join a forward-thinking company that prioritises innovation and excellence in the digital marketing space. As a Digital Experience Engineer, you'll be part of a collaborative culture that values your expertise and encourages continuous learning, with a generous annual personal learning budget and a strong focus on employee wellbeing. Located in a hybrid work environment, you will have the flexibility to thrive while contributing to cutting-edge projects that shape the future of B2B SaaS marketing.

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Contact Details:

Supermetrics Recruitment Team

We think you need these skills to ace Senior Web Engineer

Astro.js
TypeScript
Sanity
B2B SaaS Experience
A/B Testing Systems
Dynamic Content Delivery
Technical SEO