Senior Front-End Engineer (UK/Europe Time Zone) in London

At Goodnotes, we believe that every individual holds untapped potential waiting to be unleashed. By reimagining the way we interact with information, we’re merging human creativity with the breakthrough capabilities of AI. Our renewed vision and mission drive us to create the best medium for human and AI collaboration, empowering users to explore new dimensions of productivity, creativity, and learning. Join us on this journey as we transform digital note-taking into an inspiring and innovative experience.

Dream big — Be visionary, strategic, and open to innovation.

Build great things — Work in service of our users, always improving and pushing higher.

Operate like an owner — Take responsibility with bold decision-making and bias for action.

Win like a sports team — Be trusting and collaborative while empowering others.

Learn and grow fast — Never stop learning and iterate fast.

Share our passion — Share ideas and practice enthusiasm and joy.

Be user obsessed — Empathetic, inquisitive, practical.

About the Team: Multiple teams are hiring concurrently for this function. You will be part of a small, cross‑functional, autonomous, distributed team across Europe and Asia in charge of one part of the product or the business end‑to‑end. You will have shared time for collaborative activities such as planning, retros, stand‑ups, and brainstorming sessions. Some interesting challenges the teams face are implementing new technologies such as AI, for multiple platforms, and dozens of millions of users.

You will use a broad and modern tech stack with:

• Programming Language and Frameworks: We use TypeScript, React/Redux and WebAssembly to compile our Swift core logic. Goodnotes is a powerful local‑first application leveraging IndexedDB, OPFS, web workers, on‑device AI (WebNN). It also has custom functionality for Windows, Android, and others.
• Monitoring and Logging: We use Datadog for monitoring and logging. Metrics are collected across our agents, taken from the logs using metric filters, and updated directly from lambda function or the application.
• Infrastructure‑as‑Code: Most of our infrastructure is written with Terraform.
• CI/CD: We currently use GitHub Actions for CI, and ArgoCD for CD. We believe in automating ourselves out of our jobs.

This is the role for you, if you’re excited to work on the things listed below:

• Bring our core iOS App to cross platforms i.e. Web, Android and Windows systems, based on scope and requirements, using cross‑platform SDKs.
• Rapidly build prototypes/simulations from mockups that can be directly implemented.
• Improve rendering performance and memory optimizations to create a performant UX.
• Support, maintenance and ongoing development for existing applications and projects.
• Unit‑test code for robustness, including edge cases, usability, and general reliability.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Shipping Progressive Web Apps (PWA) to various platforms utilising latest technologies.

The skills you will need to be successful in the above:

• Experience building modern web applications using libraries and frameworks like: React/Redux.
• Expertise with TypeScript, familiarity with Swift a plus.
• At least 5 years of related working experience; you’ve made mistakes and learned from it, we also welcome very senior developers who can lead complex initiatives.
• Experience building cross‑platform SDKs for shipping one or more non‑trivial apps on respective app stores.
• Expertise in cloud storage, deployment and computing. We use AWS but we’re open to other platform experience.
• Can ship great quality products efficiently; you follow best practices (CI/CD, automated testing, version control).
• Strong fundamentals in Computer Science; you know how things work under the hood.
• Excellent problem‑solving, communication, and story‑telling skills.
• Experience building PWA with offline‑capabilities; bonus if you have used WebAssembly (WASM).

At Goodnotes, we want to build a team as diverse as our user base. Even if you don’t meet all the above requirements, you may still be a great fit for the role, so please consider still applying. If you align with our values, are passionate about our product and what you do, we would love to hear from you!

The interview process:

• Introduction: The Talent Team will want to hear more about your background, what you are looking for, and why you’d like to join Goodnotes.
• Hackerrank Assessment: A short online coding skills test.
• 1 Live Coding & 1 Technical Interview: Conducted by one of our Engineers.
• Hiring Manager Call: A conversation with your hiring manager — the person who will support your day‑to‑day work, guide your growth and development, and help you navigate your career at Goodnotes.
• Values Interview: A session with members of the Goodnotes team, focusing on questions related to values/ operating principles.
• AI Literacy Interview: Focused on understanding your experience with AI tools, your understanding of how they work, and how you see AI enhancing or impacting your work in the future.

What’s in it for you:

• Remote, flexible working.
• Flexible working hours and location.
• Medical insurance for you and your dependents.
• Great annual leave allowance.
• Meaningful equity in a profitable tech startup.
• Budget for things like noise‑cancelling headphones, setting up your home office, personal development, professional training, and health & wellness.
• Sponsored visits to our Hong Kong or London office every 2 years.
• Company‑wide annual offsite.
• Fantastic maternity/paternity packages and allowances.

Note: Employment is contingent upon successful completion of background checks, including verification of employment, education, and criminal records. By submitting your application, you acknowledge that you have read and understood our Candidate Privacy Notice, which provides important information about the data we collect during the application process. Goodnotes is committed to equality of opportunity for all staff and applications from individuals are encouraged regardless of age, disability, sex, gender reassignment, sexual orientation, pregnancy and maternity, race, religion or belief and marriage and civil partnerships. To help us ensure a fully diverse, equitable and inclusive working environment, we invite you to fill out this voluntary survey so we can track and further our Diversity, Equity and Inclusion efforts. The information shared here cannot and will not affect your job application in any way. It’s also 100% anonymous, and is not linked to your name, identity or application.