Our website is our most important marketing asset — where pipeline starts, brand perception forms, and every paid dollar lands. We're looking for a Principal-level engineer who can own the technical strategy for it, end to end.

You'll make architectural decisions, set engineering standards, manage external partners, and shape how the organisation thinks about digital experience as a growth lever. You'll get your hands dirty in code when it's high-stakes or foundational — but your primary value is judgment, strategic ownership, and accountability for outcomes.

The stack: Astro.js, TypeScript, Sanity (headless CMS), HubSpot, GTM, Google Analytics, Zendesk.

What you'll own

• End-to-end technical strategy for the marketing website — platform, architecture, and performance
• Website builds and redesigns from requirements through launch
• Conversion optimisation and experimentation infrastructure — enabling the growth team to move fast
• The website data layer — event architecture and tracking standards that feed broader BI
• Content infrastructure in Sanity — content models, reusable blocks, and COPE pipelines
• AI strategy for the site — evaluating where personalisation, dynamic content, and intelligent search can move the needle
• External partner management and build-vs-buy decisions

What we're looking for

• 12+ years of web development experience, with 5+ years at senior/principal level in B2B SaaS
• Deep expertise with Astro.js and Sanity (or Next.js + demonstrable Sanity depth)
• Proven track record leading major website projects with strategic and organisational implications
• Strong experience with A/B testing architecture, technical SEO, headless CMS, and the analytics/tracking layer
• Ability to communicate technical trade-offs clearly to non-technical stakeholders
• Practical, daily use of AI development tools (Cursor, Copilot, Claude, etc.)

Benefits

• Competitive compensation including equity
• Home office allowance
• Health care and leisure time insurance
• €1,000 annual learning budget
• Sports and wellbeing allowance

#LI-HYBRID

Own the strategic direction of a high-performance B2B SaaS website — and set the standard for how marketing websites drive revenue.

We’re looking for a Principal Digital Experience Engineer to join our Marketing team in Helsinki, Dublin, Amsterdam, or the UK.

Our website is our most important marketing asset — it’s where pipeline starts, where brand perception is formed, and where every campaign and paid media dollar ultimately lands. We don’t need another strong engineer who can build things. We need a recognised authority who can decide what should be built, why, and how — someone who sets the technical strategy for our entire web presence and is accountable for the outcomes.

This is a Principal-level individual contributor role (IC5). You’ll make architectural decisions, define engineering standards, influence senior leadership, manage external partners, and shape how the organisation thinks about digital web experience as a growth lever. You can and will get your hands dirty in the code when it matters — but your primary value is strategic ownership, technical authority, and the judgment to know where your time creates the most leverage.

The stack: Astro.js, TypeScript, Sanity (headless CMS), integrated with HubSpot, Google Tag Manager, Google Analytics, and Zendesk.

The strategic responsibilities you’ll own…

• End-to-end technical strategy for the marketing website — platform, stack, infrastructure, and architecture decisions that you make and are accountable for at the organisational level
• Website builds and redesigns from strategy through launch — you define technical requirements, set engineering standards, oversee delivery, and ensure the final product meets performance, accessibility, and brand standards
• The technical foundation for conversion optimisation and experimentation — designing site architecture where A/B testing, personalisation, and rapid iteration are first-class capabilities. You enable the growth team to move fast; you’re not the person running the tests
• Site performance, Core Web Vitals, uptime, and technical SEO health — developing and documenting performance methodologies that become organisational standards
• The website data layer — defining event architecture and tracking standards that feed the broader BI strategy, working with Data Architects and Analysts
• Content infrastructure strategy in Sanity — designing content models, reusable blocks, and ingestion pipelines that enable a “Create Once, Publish Everywhere” approach across the organisation
• AI strategy for the website — evaluating and championing where AI-driven personalisation, dynamic content, conversational interfaces, and intelligent search can measurably improve the visitor experience or conversion rate
• External partner management — briefing agencies and contractors, reviewing output quality, and making strategic build-vs-buy decisions
• Strategic influence — shaping how senior leadership and external stakeholders think about web as a growth lever, bringing data-backed recommendations, and influencing decisions well beyond your immediate scope

Where you’ll roll up your sleeves…

You’re not above the code — you’re selective about when you’re in it. You’ll get hands-on when the work is high-stakes, architecturally significant, or when you need to set the standard that others will follow. In practice, that looks like:

• Writing and reviewing TypeScript, Astro.js components, and Sanity integrations when the work is foundational or sets a pattern for others
• Managing deployments through GitHub, owning code quality for critical paths, and defining the engineering practices and documentation that keep the site resilient
• Monitoring and optimising Core Web Vitals and mobile performance — diagnosing and resolving issues that require deep technical expertise
• Implementing AI-driven features where you need to evaluate feasibility, set the approach, or prove the concept before handing off
• Building the first version of content models, ingestion pipelines, or integration patterns that engineers across departments will extend

How you’ll raise the bar…

• Mentoring and coaching colleagues at all levels on web best practices, modern development approaches, and AI tooling — acting as a role model across the organisation and potentially the broader industry
• Sharing knowledge proactively through documentation, internal sessions, and external contributions
• Collaborating as a credible technical peer with product and platform engineering teams across departments — not just marketing colleagues

This position is for you if you have…

• 12+ years of professional web development experience, with at least 5 years in B2B SaaS at a senior or principal level
• Deep, hands-on expertise with Astro.js and Sanity; candidates from a Next.js or similar TypeScript-first framework background will be considered provided they can demonstrate Sanity depth and a clear path to ramping up on Astro
• A proven track record of leading major website projects with significant strategic and organisational implications — not just building, but deciding what gets built and being accountable for the outcome
• Experience designing experimentation and personalisation infrastructure — A/B testing frameworks, dynamic content delivery, and the architectural patterns that enable growth teams to move fast at scale
• Strong understanding of technical SEO at a systems level — architecture, rendering strategies, structured data, and crawlability — approached as an engineering discipline that creates compounding gains
• Strong experience with headless CMS architecture — ideally Sanity, but Contentful or equivalent is relevant. Comfortable designing content models, reusable modular blocks, and COPE content pipelines
• Deep experience with the web analytics and tracking layer — event architecture, GTM, and data collection implementation
• Experience integrating with marketing automation and analytics platforms (e.g., HubSpot, Marketo, Segment, Google Analytics/GTM)
• Significant experience working within and actively improving structured engineering workflows — version control, branching strategies, PR review processes, deployment pipelines, and incident management
• Proven ability to collaborate as a credible technical peer with product and platform engineering teams across departments
• Practical, daily use of AI development tools (Cursor, GitHub Copilot, Claude, etc.) and experience implementing AI-driven site features with measurable outcomes
• Demonstrated ability to influence senior leadership and external stakeholders through technical expertise and strategic thinking
• A track record of developing new approaches, methodologies, or standards that have been adopted across an organisation or recognised within the industry
• The ability to communicate technical trade-offs in plain language to non-technical stakeholders and influence decision-making at all levels

To be clear about what this role is and isn’t…

This is a strategic technical leadership role that happens to require deep engineering capability — not an engineering role with some strategy attached. You’ll be assessed on the decisions you make, the standards you set, and the outcomes you drive — not on lines of code shipped.

• You won’t be responsible for product/application development — this is a marketing-focused role
• You won’t be writing content or designing creative — you’ll work with content and design teammates to bring their work to life on the web
• You won’t be doing basic maintenance tickets daily — but if something is broken, you don’t leave it unfixed
• You won’t own data analysis, reporting, or conversion and growth strategy — you’ll be the authoritative technical voice responsible for technical execution and strategic technical leadership

Benefits we offer…

• Competitive compensation package, including equity
• Great work equipment and home office allowance for those in fully remote locations
• Health care benefit and leisure time insurance
• Annual €1,000 personal learning budget
• Sports and wellbeing allowance

#LI-HYBRID