Principal Software Engineer in London
Principal Software Engineer

Principal Software Engineer in London

London Full-Time 36000 - 60000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Build and own user-facing features that make learning fun and engaging.
  • Company: Join an innovative AI startup on a mission to revolutionise learning.
  • Benefits: Equity, private health insurance, and a hybrid working model.
  • Why this job: Make a real impact in a fast-growing company with exciting challenges.
  • Qualifications: Expertise in front-end development, especially with React and TypeScript.
  • Other info: Collaborative team environment with opportunities for personal and professional growth.

The predicted salary is between 36000 - 60000 £ per year.

Gizmo is an AI startup on a mission to make learning so easy that anyone can learn anything. We’re building Duolingo for anything - a platform that uses gamification and social mechanics to make learning fun. With over 1 million monthly active users and $4M in annual recurring revenue, we’re already one of the fastest-growing startups in the UK. Backed by leading investors, we recently raised $22M in Series A funding to accelerate our vision of helping 1 billion people learn.

We’re looking for a Staff/Principal level Product Engineer (Individual Contributor) with a focus on frontend development to join our small, highly talented team at Gizmo. While we have a deliberately flat structure, this is a senior, high-impact role for an experienced engineer who can take ownership of major parts of our product and technical direction. You’ll report directly to the CEO, work closely with design and product, and play a key role in shaping the next generation of Gizmo’s learning platform.

You’ll do this by owning a slice of the app and iterating fast to build features that delight our users and solve their problems. You’ll be expected to merge to production, review session replays and metrics, then launch new iterations on a daily basis. If you’re looking for a fast-paced, collaborative team during an exciting stage of growth, with plenty of opportunity to make a significant impact and grow, this is the perfect time to join Gizmo and help shape what comes next.

Key Responsibilities
  • Build, maintain and own user-facing features with a focus on performance, usability, and delightful interactions across web and mobile platforms.
  • Collaborate closely with designers and product managers to translate Figma designs and product requirements into functional, high-quality code.
  • Contribute across the full stack. While frontend will be your focus, you’ll also work on back-end services and APIs when needed.
  • Own features end-to-end, from technical design and implementation to release, iteration, and ongoing improvement.
  • Participate in code reviews, technical planning, and team stand-ups, helping us maintain a high engineering standard.
Requirements
  • You have front-end development expertise with a solid understanding of full-stack fundamentals, and you’re comfortable tackling any part of the technology stack.
  • You are skilled with React, TypeScript and Tailwind.
  • Preference (not essential) for proficiency with PostgreSQL and are comfortable working with APIs and contributing to back-end logic.
  • Driven by impact - you prioritise work that moves the needle.
  • Self-starter with a maker mindset. We’re looking for ex-founders or individuals with start-up experience.
  • You are a fast learner who’s not afraid of new challenges - you are ambitious and motivated to build something meaningful.
  • Open-minded and feedback-oriented, always striving to learn and improve.

Hybrid working model with 4 days in our Shoreditch, London office. You’ll own a piece of what you’re building - equity included. Private health insurance.

Seniority level: Mid-Senior level
Employment type: Full-time
Industries: Software Development, Computer Games, and Education
London Area, United Kingdom

Principal Software Engineer in London employer: Gizmo

At Gizmo, we pride ourselves on being an innovative AI startup that fosters a dynamic and collaborative work culture. Our team enjoys a hybrid working model, competitive equity options, and private health insurance, all while contributing to a mission that makes learning accessible and enjoyable for everyone. Join us in our Shoreditch office, where your contributions will directly shape the future of our platform and help millions learn effectively.
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Contact Detail:

Gizmo Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Principal Software Engineer in London

✨Tip Number 1

Network like a pro! Reach out to people in the industry, attend meetups, and connect with current employees at Gizmo. A personal introduction can make all the difference in getting your foot in the door.

✨Tip Number 2

Show off your skills! Create a portfolio or GitHub repository showcasing your best projects, especially those that highlight your frontend expertise. This is your chance to demonstrate how you can own features and contribute to a product like Gizmo's.

✨Tip Number 3

Prepare for the interview by understanding Gizmo’s mission and values. Be ready to discuss how your experience aligns with their goal of making learning fun and accessible. Show them you're not just a fit for the role, but for the company culture too!

✨Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re genuinely interested in joining the team at Gizmo and contributing to their exciting journey.

We think you need these skills to ace Principal Software Engineer in London

Frontend Development
Full-Stack Fundamentals
React
TypeScript
Tailwind
PostgreSQL
API Development
Technical Design
Code Review
Collaboration
Problem-Solving
Self-Starter
Learning Agility
User Experience Focus

Some tips for your application 🫡

Show Your Passion for Learning: When you write your application, let us see your enthusiasm for making learning accessible and fun. Share any personal projects or experiences that highlight your commitment to education and technology.

Tailor Your Application: Make sure to customise your CV and cover letter to reflect the specific skills and experiences that align with our job description. Highlight your front-end development expertise and any relevant full-stack experience to catch our eye!

Be Clear and Concise: We appreciate straightforward communication. Keep your application clear and to the point, focusing on your key achievements and how they relate to the role. Avoid fluff – we want to know what makes you a great fit!

Apply Through Our Website: Don’t forget to submit your application through our website! It’s the best way for us to receive your details and ensures you’re considered for this exciting opportunity at Gizmo.

How to prepare for a job interview at Gizmo

✨Know Your Tech Stack

Make sure you’re well-versed in React, TypeScript, and Tailwind. Brush up on your full-stack fundamentals too, as you might be asked about back-end services and APIs. Being able to discuss your experience with these technologies confidently will show that you're the right fit for the role.

✨Showcase Your Impact

Prepare examples of how your work has made a significant impact in previous roles. Gizmo is looking for someone driven by results, so highlight projects where you’ve improved performance or user experience. Use metrics to back up your claims if possible!

✨Emphasise Collaboration

Since you'll be working closely with designers and product managers, be ready to discuss how you’ve collaborated in the past. Share specific instances where you translated designs into functional code and how you handled feedback during the process.

✨Demonstrate Your Maker Mindset

Gizmo values self-starters with a maker mindset. Be prepared to talk about personal projects or initiatives you've taken on outside of work. This shows your passion for building and learning, which aligns perfectly with their mission.

Principal Software Engineer in London
Gizmo
Location: London
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  • Principal Software Engineer in London

    London
    Full-Time
    36000 - 60000 £ / year (est.)
  • G

    Gizmo

    50-100
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