Staff Engineer: Web Platform Architect for Growth & Martech

Fin; Dublin; Hybrid; EUR 140,000 - 190,000; Full time

Job summary

Fin seeks an experienced Staff Engineer to shape the technical direction of our web platform and systems. You’ll partner with marketing, analytics, design, data science, and engineering to ensure a modern, performant stack across our web surfaces.

You will mentor engineers, set standards for reliability and code quality, and contribute hands-on to accelerate key initiatives while aligning with business goals.

Qualifications

• 8+ years of software engineering experience.
• Experience in a high-scale growth-focused web environment.
• Track record of technical leadership across multiple teams.
• Strong expertise in Next.js and the React ecosystem.
• Experience with headless CMS platforms such as Contentful or Sanity.
• Experience with infrastructure-as-code (Terraform), cloud platforms (AWS, CloudFront, S3), and deployment (Vercel).
• Experience designing or operating experimentation infrastructure (A/B testing, event instrumentation, attribution tools).
• Strong understanding of web analytics and data instrumentation (GTM, event tracking).
• Comfortable with full-stack codebases and frontend architecture awareness.
• Experience with continuous delivery and shipping high-quality software.
• Excellent communication and cross-functional collaboration.
• Mentorship mindset to raise engineering excellence.

Responsibilities

• Own and evolve the architecture of Fin's web platform.
• Define long-term technical strategy for the web team focusing on scalability, performance, and reliability.
• Collaborate with marketing, design, analytics, and data science to support goals.
• Lead design and implementation of MarTech systems for event tracking and testing infrastructure.
• Partner with engineers across web, infra and data to create a cohesive tech ecosystem.
• Mentor engineers and raise the bar for engineering excellence across the team.
• Set standards for reliability, maintainability and code quality.
• Provide technical leadership to managers and executives, communicating risks and opportunities.
• Contribute hands-on to the codebase to unblock key projects.

Skills

8+ years

Next.js

React ecosystem

Cross-functional leadership

Observability

System reliability

A/B testing

Event instrumentation

Google Tag Manager

Frontend architecture

Mentorship

Tools

Terraform

AWS

CloudFront

S3

Vercel

Contentful

Sanity

Job description

Fin seeks an experienced Staff Engineer to shape the technical direction of our web platform and systems. You’ll partner with marketing, analytics, design, data science, and engineering to ensure a modern, performant stack across our web surfaces.

You will mentor engineers, set standards for reliability and code quality, and contribute hands-on to accelerate key initiatives while aligning with business goals.