Senior Full Stack Engineer

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Crimson Education is the world's leading college admissions consultancy, with over 1,320 Ivy League offers and 2,140 to the US Top 15. We help ambitious students gain admission to the world's top universities through expert-led guidance and proven, data-driven strategies. Crimson students are 7x more likely to get into the Ivy League than their peers.

What sets us apart is our unmatched scale and expertise. We have the largest team of Former Admissions Officers and Strategists globally. Every student is matched with a carefully-chosen team of admissions experts who zero in on different parts of their college application — from essays to extracurriculars — ensuring every detail is expertly executed.

Role overview

We're seeking a Senior Full Stack Engineer to lead the development of our global, multi-locale marketing and web platform. This role involves building scalable systems, optimising site performance for SEO, and ensuring smooth integration with internal tools and content infrastructure. You'll work closely with our Product, Marketing, and Design Teams to deliver fast, secure, and high-converting digital experiences.

What are the main responsibilities of the role

• Architect, build, and maintain scalable full-stack applications using Next.js, Node.js, and TypeScript.
• Build and maintain integrations with marketing tools, analytics platforms, and third-party services.
• Implement SEO-first practices, including clean site architecture, metadata, sitemaps, and page speed optimisation.
• Support and manage CI/CD pipelines and infrastructure using modern DevOps tools and workflows.
• Implement and maintain secure user authentication systems, including third-party login providers and session management.
• Ensure security and compliance, following best practices and global data protection standards (e.g. GDPR, CCPA).

What success looks like

• Performance: Pages load in under 2 seconds, handle high traffic without performance drops, and deliver a seamless experience across mobile, target and desktop devices in all target regions.
• Security & Compliance: Data is protected, systems meet privacy regulations (e.g. GDPR), and vulnerabilities are identified and resolved proactively.
• SEO: Technical foundations support organic growth through clean, indexable architecture and best-practice implementation.
• Reliability: Code is stable, maintainable, and deployed without regressions; site uptime remains consistently high.
• Engineering Efficiency: Development cycles are fast, with high output quality and minimal rework.
• Cross-Team Collaboration: Product and design teams can confidently identify opportunities, design solutions, then launch and iterate quickly in close collaboration with engineers.

Required skills and experience

• 8+ years of full stack development experience in a commercial setting.
• Advanced skills in React, Next.js, Node.js, and TypeScript.
• Strong grasp of DevOps, cloud platforms/services, particularly with AWS, and performance monitoring.
• Experience building and securing authentication flows and access control.
• Proven success delivering SEO-optimised websites at scale.
• Experience managing or building content platforms across multiple locales.
• Excellent communication and collaboration across time zones.
• Experience integrating or building with AI tools or using AI to enhance development workflows.
• Nice to have: familiarities with GatsbyJS, Salesforce, Marketo or other marketing platforms, Google Analytics / Google Tag Manager, and data integration pipelines.

Why work for Crimson

• Rapidly growing start-up with a flexible working environment and empowerment to structure how you work.
• Limitless development and exposure — internal promotions/role changes made up 33% of all recruitment last year.
• $1000 individual training budget per year to support continuous learning.
• Psychologist on staff and opportunities for fireside chats and workshops to support a high-performing team.
• Radical Candor is a feedback approach we live by.
• Global presence with 28 markets (and growing); most roles offer options to work from offices or remotely.

Please keep an eye on your spam/junk email folder for correspondence from Team Tailor.

If you're passionate about growing in a fast-paced, collaborative environment and want to work with cutting-edge technology, then we'd love to hear from you

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