Senior Frontend Engineer in City of London
Senior Frontend Engineer

Senior Frontend Engineer in City of London

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

  • Tasks: Build and optimise user-facing features for our innovative platform.
  • Company: Join a rapidly growing tech company revolutionising Retail Media.
  • Benefits: Competitive salary, flexible work environment, and opportunities for professional growth.
  • Why this job: Make a real impact from day one in a fast-paced startup culture.
  • Qualifications: 5+ years in front-end development with strong skills in JavaScript frameworks.
  • Other info: Collaborative team atmosphere focused on speed and innovation.

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

We’re quickly growing and super excited for you to join us!

Topsort is changing the way Retail Media works. By joining our scaling team, you’ll feel your impact from day 1. The processes and messaging you build today will be a critical part of our foundation as we accelerate toward 200 Topsorters worldwide, and your innovations will leave a lasting mark on the industry, as a whole. Retail Media is on the verge of a new era, and Topsort is gathering the ecosystem together to shape a brighter future. Joining us now, you’ll work directly alongside our co-founders and founding members to bring on Retail Media 3.0. If you’re looking to define your career as something greater than yourself, come scale with us.

Our team is all about straightforward communication, embracing feedback without taking it personally, and fostering a super collaborative environment. It’s a sports team that’s hyper focused on winning, collaborative internally, and competitive externally. We thrive on working in the open, lifting each other up, and getting things done with a sense of urgency. We’re the kind of team that loves making bold choices, sharing extraordinary opinions, and maintaining a 100 mph pace. No endless meetings here – if it can be done today, we’re all about getting it done today.

As a Senior Front-End Developer at Topsort, you’ll be responsible for building and optimizing user-facing features that power our platform, working closely with designers, product managers, and backend engineers to deliver seamless and responsive web experiences. You’ll work primarily with modern JavaScript frameworks like React (and ideally Next.js), focusing on performance, accessibility, and scalability. This role is ideal for someone who thrives in a fast-paced startup environment, enjoys turning complex problems into intuitive interfaces, and takes pride in clean, maintainable code.

What you will do at Topsort:

  • Develop, maintain, and optimize front-end components and user interfaces.
  • Work closely with designers, product managers, and backend developers to implement new features.

What we expect from you:

  • Bachelor’s in Computer Science, Design, or related field.
  • 5+ years of experience in front-end development.
  • Experience with front-end build tools and workflows (Webpack, Babel, NPM).
  • Strong understanding of responsive design, accessibility, and web performance optimization.
  • Preferred experience: Experience with Next.js or server-side rendering (SSR). Contributions to open-source projects or development of high-traffic web applications.
  • Demonstrated experience working in a three-tier application architecture.
  • Experience working with Python frameworks like FastAPI.
  • Experience working with PostgreSQL.

Today, Topsort has 5 major hubs worldwide, and employees in 13+ countries, including Menlo Park, Boston, Santiago Chile, Sao Paulo Brazil, Barcelona Spain, and Sydney Australia. We are a truly global company that was born in the pandemic that’s had rapid growth since out of a genius product, a customer-first mentality, and a hardworking team of talented individuals. Since our founding in 2021, we’ve gained customers in retail, marketplaces, and delivery apps in 40+ countries and quickly approaching the #1 position in the industry.

Do you enjoy a fast-paced environment? Do you like seeing your work create real-time impact, being part of a rocket ship from the very beginning? Let’s do the unimaginable - let’s make ads clean and cool again, with AI and modern technology.

Topsort Culture:

  • Speed: We work hard, set aggressive goals and execute flawlessly to accomplish them. We give candid feedback, push each other to set higher goals and produce more impact by always thinking “how do we do this faster and better”.
  • Fast Growth: We believe startup scaleup is just like a team sport. It’s been written in our motto since day 1 that we are collaborative internally, competitive externally, and never the other round around. You are ultimately surrounded by just different people that are all here to help you get the job done and shine as a team.

Do you sound like the right fit? Let’s dive right in!

Senior Frontend Engineer in City of London employer: Topsort

At Topsort, we pride ourselves on being an exceptional employer that fosters a dynamic and collaborative work culture. As a Senior Frontend Engineer, you'll have the opportunity to make a significant impact from day one, working alongside our co-founders in a fast-paced environment that values innovation and teamwork. With a focus on employee growth and a commitment to open communication, Topsort offers a unique chance to shape the future of Retail Media while enjoying the benefits of a supportive and ambitious team.
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Contact Detail:

Topsort Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Frontend Engineer in City of London

✨Tip Number 1

Network like a pro! Reach out to current employees at Topsort on LinkedIn or other platforms. Ask them about their experiences and any tips they might have for your interview. It’s all about making connections and showing genuine interest!

✨Tip Number 2

Prepare for the technical side! Brush up on your JavaScript frameworks, especially React and Next.js. Be ready to showcase your problem-solving skills with real-world examples during the interview. We want to see how you tackle challenges head-on!

✨Tip Number 3

Show off your portfolio! Make sure to have a solid collection of your past projects ready to share. Highlight your contributions to open-source projects or any high-traffic web applications you've worked on. This is your chance to shine!

✨Tip Number 4

Don’t forget to express your passion for fast-paced environments! Topsort thrives on urgency and collaboration, so share examples of how you’ve thrived in similar settings. Let us know why you’re excited to join our rocket ship!

We think you need these skills to ace Senior Frontend Engineer in City of London

JavaScript
React
Next.js
Responsive Design
Web Performance Optimization
Accessibility
Front-End Development
Webpack
Babel
NPM
Python Frameworks
FastAPI
PostgreSQL
Collaboration
Clean Code

Some tips for your application 🫡

Show Your Passion: When writing your application, let your enthusiasm for the role shine through! We want to see how excited you are about joining Topsort and making an impact in the Retail Media space.

Tailor Your CV: Make sure to customise your CV to highlight your relevant experience and skills. We’re looking for someone who thrives in a fast-paced environment, so showcase your achievements that align with our culture and values.

Be Clear and Concise: Keep your application straightforward and to the point. We appreciate clarity, so avoid fluff and focus on what makes you a great fit for the Senior Frontend Engineer role at Topsort.

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 the role. We can’t wait to hear from you!

How to prepare for a job interview at Topsort

✨Know Your Tech Stack

Make sure you’re well-versed in the technologies mentioned in the job description, especially modern JavaScript frameworks like React and Next.js. Brush up on your knowledge of front-end build tools like Webpack and Babel, as these will likely come up during technical discussions.

✨Showcase Your Problem-Solving Skills

Prepare to discuss specific examples where you've turned complex problems into intuitive interfaces. Think about challenges you've faced in previous roles and how you approached them, as this aligns with the fast-paced environment Topsort thrives in.

✨Emphasise Collaboration

Since Topsort values teamwork, be ready to share experiences where you’ve worked closely with designers, product managers, or backend developers. Highlight how you’ve embraced feedback and contributed to a collaborative environment, as this is key to their culture.

✨Demonstrate Your Passion for Impact

Topsort is looking for someone who wants to make a real difference. Be prepared to express why you’re excited about the role and how you see your contributions shaping the future of Retail Media. Show that you’re not just looking for a job, but a chance to be part of something bigger.

Senior Frontend Engineer in City of London
Topsort
Location: City of London
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