Staff Engineer, Web Platform & Growth Tech (Hybrid)

Intercom; Greater London; Hybrid; GBP 120,000 - 160,000; Full time

Benefits offered by this job

Hybrid work model

Job summary

Fin, the AI Customer Agent company, is seeking a Staff Engineer to shape the technical direction of our web platform. You will lead architecture, drive long-term strategy, and partner with marketing, analytics, design, data science, and engineering teams to build a scalable, measurable, and delightful web stack.

You will mentor engineers, set standards for reliability and code quality, contribute hands-on, and communicate risks and opportunities to executives while delivering high-impact

Qualifications

• 8+ years of software engineering experience.
• Experience in a high-scale growth-focused web environment.
• Track record of technical leadership and influencing technical direction across multiple teams or departments.
• Deep expertise in Next.js and the React ecosystem.
• Experience with headless CMS platforms such as Contentful or Sanity - including content modeling, migration, and multi-site architecture.
• Experience with infrastructure-as-code (Terraform), cloud platforms (AWS, CloudFront, S3), and deployment platforms (Vercel).
• Experience designing or operating experimentation infrastructure - A/B testing frameworks, event instrumentation, attribution systems and tools like Eppo.
• Strong understanding of web analytics and data instrumentation - experience with event tracking SDKs, Google Tag Manager, or similar.
• Comfortable working in and supporting full-stack codebases - even if this role is not UI-heavy, a solid frontend architecture awareness is valued.
• Experience operating in continuous delivery environments with an emphasis on incremental, high-quality shipping.
• Exceptional communication skills and a history of collaborating with cross-functional teams (product, marketing, analytics, design, etc.)
• A mentorship mindset — proven ability to raise the bar for engineering excellence across a team or organization.

Responsibilities

• Own and evolve the architecture of Fin's web platform.
• Define the long-term technical strategy for the web team, focusing on scalability, performance, developer productivity, observability, and system reliability.
• Collaborate closely with marketing, design, analytics, and data science stakeholders to ensure the platform supports their goals with accuracy, performance, and agility.
• Lead and influence the design and implementation of MarTech systems for event tracking, attribution, funnel reporting, A/B testing infrastructure, and more.
• Partner with engineers across web, infrastructure, and data to create a high-quality, cohesive technical ecosystem.
• Mentor and elevate engineers across the team and organization — providing guidance on architecture, data modeling, system design, and engineering best practices.
• Set the standard for technical excellence in reliability, maintainability, code quality, and operational readiness.
• Provide technical leadership and insight to Engineering Managers, Product Managers, and executive stakeholders - communicating risks, trade-offs, and opportunities clearly.
• Contribute hands-on to the codebase — leading by example and helping unblock and accelerate key projects.

Skills

Next.js

React

Technical leadership

Web scalability

Observability

Deployment platforms

AB testing

Event instrumentation

Cross-functional collaboration

Tools

Contentful

Sanity

Terraform

AWS

CloudFront

S3

Vercel

Google Tag Manager

Eppo

Job description

Fin, the AI Customer Agent company, is seeking a Staff Engineer to shape the technical direction of our web platform. You will lead architecture, drive long-term strategy, and partner with marketing, analytics, design, data science, and engineering teams to build a scalable, measurable, and delightful web stack.

You will mentor engineers, set standards for reliability and code quality, contribute hands-on, and communicate risks and opportunities to executives while delivering high-impact