Senior Software Engineer, Web Cross-platform (12-month fixed term contract, renewable or B2B)

Goodnotes; City Of London; Remote; GBP 50,000 - 75,000; Full time

Job summary

A leading tech startup is seeking a Senior Software Engineer to develop cross-platform applications for Web, Android, and Windows. The ideal candidate has over 5 years of experience, a strong background in TypeScript and React, and is passionate about building high-quality user experiences. This role offers flexible working hours and attractive benefits including medical insurance and meaningful equity.

Benefits

Medical insurance for you and your dependents

Flexible working hours and location

Great annual leave allowance

Meaningful equity in a profitable tech startup

Budget for home office setup

Sponsored visits to offices every 2 years

Fantastic maternity/paternity packages

Qualifications

• At least 5 years of experience in software development.
• Strong fundamentals in Computer Science.
• Experience shipping Progressive Web Apps (PWA) with offline capabilities.

Responsibilities

• Develop cross-platform applications for Web, Android, and Windows.
• Build prototypes from mockups.
• Optimize performance for user experience.

Skills

Building modern web applications

Expertise with TypeScript

Experience with React/Redux

Strong problem-solving skills

Experience with cross-platform SDKs

CI/CD expertise

Cloud storage experience

Education

Bachelor's degree in Computer Science or related field

Tools

React

Redux

AWS

Datadog

Job description

Senior Software Engineer, Web Cross-platform (12-month fixed term contract, renewable or B2B)

Our Values:

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:

You will use a broad and modern tech stack with:

• Programming Language: We use TypeScript for Frontend. Our backend services are written in Kotlin.
• Frameworks and Libraries: We use React/Redux and WebAssembly to compile our Swift core logic.
• Monitoring and Logging: We are currently using 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.
• Deployments: We have multiple EKS clusters set up either for Blue/Green rollouts or dedicated feature sets. We are currently updating these clusters using ArgoCD and Atlantis.
• Our main databases are MongoDB and a self-managed CockroachDB cluster running on EKS.
• We believe in automating ourselves out of our jobs.

About the role:

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
• 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)

The interview process:

• Introduction: The Talent Team want to hear more about your background, what you are looking for, and why you’d like to join Goodnotes.
• Live coding & Technical interview: A live coding call with one of our engineers. This is where you get to see what it would be like working at Goodnotes as well as the chance to ask any engineering questions you may have
• Hiring Manager interview: A call with your hiring manager. This is the person who will be managing you day to day, working on your growth and development with you as well as support you throughout your career at Goodnotes.
• Values interview – Meeting with members of the Goodnotes Team to answer questions relating to take ownership AND build great things

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