Senior Full Stack Engineer - Team Web

intercom; Greater London; Híbrido; GBP 90.000 - 130.000; Jornada completa

Descripción de la vacante

Fin, now part of Salesforce, is on a mission to help businesses provide perfect customer experiences. As a Senior Full Stack Engineer in Team Web, you’ll craft intuitive front-end experiences and build backend systems that power them, collaborating with product marketers, designers, and engineers across the business.

You’ll work across UI, APIs, and infrastructure, leveraging modern frameworks and cloud tooling to deliver fast, scalable web experiences while staying current with new technologies.

Formación

• 8+ years in full-stack development with JavaScript, HTML, and CSS.
• Proficiency with React, Next.js, and Tailwind for modern UIs.
• Experience with Contentful/Sanity CMS and marketing tools like GTM/Marketo.
• CI/CD experience with CircleCI; IaC with Terraform; AWS cloud services.
• Familiar with A/B testing, performance optimization, and front-end tests (Jest/Mocha/Cypress).
• Bachelor’s degree in CS/SE or equivalent practical experience.

Responsabilidades

• Design, build, and maintain end-to-end web solutions from UI to backend services.
• Collaborate with design, brand, marketing, and content teams to deliver seamless experiences.
• Develop backend logic and APIs; manage data flows and integrations with third parties.
• Optimize performance and implement lazy loading, asset management, and testing.
• Set up infrastructure with Vercel, AWS, CloudFront, Terraform and CI/CD pipelines.

Conocimientos

JavaScript

HTML

CSS

React

Next.js

Tailwind

Contentful

Sanity

Google Tag Manager

Marketo

CircleCI

Terraform

AWS

Vercel

CloudFront

S3

A/B testing

Performance optimization

Jest

Mocha

Cypress

Educación

Bachelor’s degree in Computer Science, Software Engineering, or a related field

Herramientas

CircleCI

Terraform

AWS

Vercel

CloudFront

S3

Contentful

Sanity

Google Tag Manager

Marketo

Jest

Mocha

Cypress

Descripción del empleo

What's the opportunity?

Fin, now part of Salesforce, is on a mission to help businesses provide perfect customer experiences.

Our AI Agent Fin is the highest-performing AI Customer Agent on the market today, enabling businesses to deliver impeccable, always-on customer support across the customer journey, from service, to sales, to ecommerce. Powered by our own AI models, Fin resolves complex customer issues end-to-end across every channel, with minimal set-up and integration. Fin can also be combined with our natively integrated Intercom help desk, giving modern support teams one single system.

Together with Salesforce, the #1 AI CRM, where humans with agents drive customer success, we're building the future of customer experience. Here, ambition meets action. Tech meets trust. And innovation isn't a buzzword, it's a way of life. The world of work as we know it is changing, and we're looking for Trailblazers who are passionate about bettering business and the world through AI.

Ready to level up your career at the company leading workforce transformation in the agentic era? You're in the right place. Agentforce is the future of AI, and you are the future of Salesforce.

We’re looking for a Senior Full Stack Engineer to join Team Web, who is passionate about crafting intuitive front-end experiences and building the backend systems and tools that power them. You’ll play a key role in shaping the future of our website across the full stack, from UI to infrastructure, while collaborating with product marketers, designers, and engineers across the business.

See the teams most recent work here

What will I be doing?

• Design, build, and maintain end-to-end web solutions — from modern UIs to backend services, APIs, and infrastructure.
• Collaborate with design, brand, marketing, and content teams to deliver seamless, performant experiences across web and mobile.
• Develop backend logic and APIs, manage data flows, and implement systems that integrate with third-party platforms.
• Optimize website performance by applying best practices in front-end development, including lazy loading, and efficient asset management.
• Set up and manage infrastructure using tools like Vercel, AWS, Cloudfront, Terraform, and CI/CD pipelines (e.g., CircleCI).
• Implement and maintain web analytics, and support A/B testing for data-driven decisions.
• Stay current with emerging technologies and trends to continually improve our development processes and user experience.
• Be comfortable writing backend software. We look for engineers to be able to unblock themselves end to end
• Build using the best tools in the industry. We invest heavily in AI-powered developer tools that remove friction and help you focus on solving meaningful problems.

What skills do I need?

• 8+ years of experience in full stack development, with expertise in JavaScript, HTML, and CSS.
• Expert in front-end frameworks such as React, Next.js, Tailwind.
• Experience in CMS platforms (such as Contentful and Sanity) and marketing tools (e.g. Google Tag Manager, Marketo)
• Experience in CI/CD tools (such as CircleCI) to streamline and automate development workflows.
• Familiarity with infrastructure as code tools such as Terraform, and cloud platforms like AWS (Vercel, CloudFront, S3, etc.).
• Experience with A/B testing and familiarity with analytics tools to drive data-informed design and development decisions.
• Knowledge of performance optimization techniques and best practices for fast-loading, responsive websites.
• Experience in writing tests for front-end components, with familiarity in testing frameworks (e.g., Jest, Mocha, Cypress).
• Strong problem-solving skills and the ability to work independently and as part of a team.
• Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience).

#LI-Hybrid

In the United States, compensation offered will be determined by factors such as location, job level, job-related knowledge, skills, and experience. Certain roles may be eligible for incentive compensation, equity, and benefits. At Fin, we want to give people what they need to do the best work of their careers. Our benefits and programs are designed to support your health and wellbeing, your family, your time away from work, and your financial future. Offerings vary by location in line with local practices and requirements. Learn more about working at Fin and the benefits we offer at fin.ai/careers. Pursuant to the San Francisco Fair Chance Ordinance and the Los Angeles Fair Chance Initiative for Hiring, Salesforce will consider for employment qualified applicants with arrest and conviction records.

Policies

Fin has a hybrid working policy. We believe that working in person helps us stay connected, collaborate easier and create a great culture while still providing flexibility to work from home. We expect employees to be in the office at least three days per week.

We have a radically open and accepting culture at Fin. We avoid spending time on divisive subjects to foster a safe and cohesive work environment for everyone. As an organization, our policy is to not advocate on behalf of the company or our employees on any social or political topics out of our internal or external communications. We respect personal opinion and expression on these topics on personal social platforms on personal time, and do not challenge or confront anyone for their views on non-work related topics. Our goal is to focus on doing incredible work to achieve our goals and unite the company through our core values.

Salesforce is an equal opportunity employer and maintains a policy of non-discrimination with all employees and applicants for employment. What does that mean exactly? It means that at Salesforce, we believe in equality for all. And we believe we can lead the path to equality in part by creating a workplace that’s inclusive, and free from discrimination. Know your rights: workplace discrimination is illegal. Any employee or potential employee will be assessed on the basis of merit, competence and qualifications – without regard to race, religion, color, national origin, sex, sexual orientation, gender expression or identity, transgender status, age, disability, veteran or marital status, political viewpoint, or other classifications protected by law. This policy applies to current and prospective employees, no matter where they are in their Salesforce employment journey. It also applies to recruiting, hiring, job assignment, compensation, promotion, benefits, training, assessment of job performance, discipline, termination, and everything in between. Recruiting, hiring, and promotion decisions at Salesforce are fair and based on merit. The same goes for compensation, benefits, promotions, transfers, reduction in workforce, recall, training, and education.