Senior Full Stack Engineer, Web

Job not on LinkedIn

🕒 September 30, 2025

🏢🏡 London – Hybrid

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

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Logo of intercom Inc,.

intercom Inc,.

WebsiteLinkedIn

51 - 200 employees

In 1982, Intercom was established by 2 founders, IT engineer and registered accountant to develop PC-based advanced communication software.

📋 Description

• 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 development processes and user experience. • Be comfortable writing backend software and able to unblock themselves end to end.

🎯 Requirements

• 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) • 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 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).

🏖️ Benefits

• Competitive salary and equity in a fast-growing start-up • We serve lunch every weekday, plus a variety of snack foods and a fully stocked kitchen • Regular compensation reviews - we reward great work! • Pension scheme & match up to 4% • Peace of mind with life assurance, as well as comprehensive health and dental insurance for you and your dependents • Flexible paid time off policy • Paid maternity leave, as well as 6 weeks paternity leave for fathers, to let you spend valuable time with your loved ones • If you’re cycling, we’ve got you covered on the Cycle-to-Work Scheme. With secure bike storage too • MacBooks are our standard, but we also offer Windows for certain roles when needed.

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