Lead Fullstack Engineer in London

Lead Fullstack Engineer in London

London Full-Time 70000 - 90000 € / year (est.) Home office (partial)
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At a Glance

  • Tasks: Design and build scalable applications while taking ownership of features from idea to launch.
  • Company: Join Zelt, a pioneering platform transforming how organisations manage their people.
  • Benefits: Enjoy competitive pay, health insurance, equity, and even airline miles.
  • Other info: Be part of a culture that values learning and technical excellence.
  • Why this job: Make a real impact with your code in a fast-paced, innovative environment.
  • Qualifications: Experience in fullstack development with JavaScript/TypeScript, Node.js, React, AWS, PostgreSQL.

The predicted salary is between 70000 - 90000 € per year.

About Zelt: Zelt is on a mission to rebuild how organisations run. Our all-in-one platform helps modern companies manage their people across payroll, onboarding, time off, IT provisioning and more, in a seamless and automated way. We are the only platform on G2 named a Global Momentum Leader across HR, Payroll and IT, and we are just getting started. Our product is technically ambitious, structurally different from anything else on the market, and already trusted by forward-thinking companies.

Why this role matters: As a Lead Fullstack Engineer you will have the opportunity to take features from idea through design to shipped product. You will work in a lean, product-focused team where your input helps shape both what we build and how we deliver it.

What you will do:

  • Design, build and maintain scalable applications across the stack (Node.js, TypeScript, React, AWS, PostgreSQL)
  • Take end-to-end ownership of features including architecture, testing, shipping and iteration
  • Collaborate closely with product and design to align technical execution with user needs
  • Write clean, maintainable and well tested code and champion engineering best practices
  • Improve developer workflows, tooling and processes to keep the team fast and productive
  • Stay on top of new technologies and suggest pragmatic, high impact improvements.

What we are looking for:

  • Strong experience delivering fullstack applications in fast-moving product environments
  • Deep expertise in JavaScript/TypeScript, Node.js, React, AWS, PostgreSQL
  • Strong problem-solving ability and attention to code quality and architectural integrity
  • Clear communicator who thrives in collaborative environments
  • Sense of ownership and pride in your work, motivated by outcomes rather than tasks.

Nice to have:

  • Startup or scale-up experience in small, fast-moving teams
  • Familiarity with CI/CD, observability and scaling infrastructure
  • A history of improving performance, code quality or developer experience.

Why join Zelt:

  • Work on technically ambitious challenges that will stretch your skills
  • Direct ownership and impact, with your work visible and influential from day one
  • A culture that values technical excellence and continuous learning
  • Competitive compensation with benefits including health insurance, equity and even airline miles
  • The chance to join early enough to shape the product, but with product-market fit and momentum already in place.

At Zelt, your code will not disappear into the background. It will power systems used every day and have a visible impact on how modern companies operate.

Lead Fullstack Engineer in London employer: Zelt

Zelt is an exceptional employer for those seeking to make a meaningful impact in the tech industry. With a culture that prioritises technical excellence and continuous learning, employees enjoy direct ownership of their work, competitive compensation, and unique benefits such as health insurance and equity. Located in a dynamic environment, Zelt offers the opportunity to tackle ambitious challenges while shaping the future of organisational management.

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Contact Detail:

Zelt Recruiting Team

StudySmarter Expert Advice🤫

We think this is how you could land Lead Fullstack Engineer in London

Tip Number 1

Network like a pro! Reach out to folks in your industry on LinkedIn or at meetups. A personal connection can often get your foot in the door faster than any application.

Tip Number 2

Show off your skills! Create a portfolio or GitHub repository showcasing your projects, especially those using Node.js, TypeScript, and React. This gives potential employers a taste of what you can do.

Tip Number 3

Prepare for interviews by practicing common technical questions and coding challenges. We recommend using platforms like LeetCode or HackerRank to sharpen your problem-solving skills.

Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our mission at Zelt.

We think you need these skills to ace Lead Fullstack Engineer in London

Fullstack Development
Node.js
TypeScript
React
AWS
PostgreSQL
End-to-End Ownership

Some tips for your application 🫡

Show Your Passion:When you're writing your application, let your enthusiasm for the role shine through! We want to see that you’re genuinely excited about the opportunity to work on technically ambitious challenges and make a real impact.

Tailor Your Experience:Make sure to highlight your experience with the tech stack we use, like Node.js, TypeScript, and React. We love seeing how your past projects align with what we do at Zelt, so don’t hold back on those relevant details!

Be Clear and Concise:We appreciate clear communication, so keep your application straightforward. Avoid jargon and get straight to the point about your skills and experiences. Remember, we’re looking for someone who thrives in collaborative environments!

Apply Through Our Website:Don’t forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows you’re keen to join our team at Zelt!

How to prepare for a job interview at Zelt

Know Your Tech Stack

Make sure you’re well-versed in the technologies mentioned in the job description, like Node.js, TypeScript, React, AWS, and PostgreSQL. Brush up on your knowledge of these tools and be ready to discuss how you've used them in past projects.

Showcase Your Problem-Solving Skills

Prepare examples that highlight your problem-solving abilities. Think of specific challenges you've faced in previous roles and how you tackled them, especially in fast-moving environments. This will demonstrate your capability to handle the demands of a Lead Fullstack Engineer.

Communicate Clearly

Since collaboration is key in this role, practice articulating your thoughts clearly. Be ready to explain your design decisions and how they align with user needs. Good communication can set you apart from other candidates.

Demonstrate Ownership and Pride

Zelt values a sense of ownership in work. Share instances where you took full responsibility for a project or feature, from conception to delivery. Highlight your motivation by outcomes rather than just completing tasks, as this aligns with their company culture.