Full Stack Engineer

Full Stack Engineer

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

  • Tasks: Build and maintain innovative features using cutting-edge tech like React and Node.js.
  • Company: Join Zelt, a high-growth SaaS company transforming people operations.
  • Benefits: Competitive pay, health insurance, and opportunities for rapid career growth.
  • Why this job: Make a real impact on a platform used by modern companies every day.
  • Qualifications: Experience in fullstack development with skills in React, TypeScript, and Node.js.
  • Other info: Collaborative culture with a focus on learning and technical excellence.

The predicted salary is between 36000 - 60000 £ 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 operations 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 Fullstack Engineer at Zelt you will help build features end to end, from implementation to testing and launch. You will work closely with senior engineers who will guide architecture decisions while you focus on delivering high-quality code and learning how to scale a SaaS product.

This is the ideal moment to join: Zelt has product-market fit and strong backing, yet it is still early enough that your work will influence the platform’s growth and user experience. You will see your code reach customers quickly and have visible impact.

You will join a lean, product-focused team where your ideas count, your growth is supported, and your work helps shape a platform used every day by modern companies.

What you will do:

  • Implement and maintain features across the stack using React, TypeScript, Node.js, NestJS, PostgreSQL and AWS
  • Collaborate closely with senior engineers, product and design to deliver well-scoped features from start to finish
  • Participate in code reviews, share knowledge and grow your skills while supporting a collaborative team culture
  • Write clean, maintainable, well-tested code and follow engineering best practices
  • Contribute to improving developer workflows and tooling (GitHub, GitHub Actions, Slack, Linear, Sentry, SolarWinds)
  • Learn about and contribute to infrastructure (Docker, AWS ECS, RDS, S3, SES, CloudFront, CDK) with support from senior teammates.

What we are looking for:

  • Proven experience shipping fullstack features in a product-driven team
  • String skills with React, TypeScript, Node.js, and PostgreSQL
  • Working knowledge of AWS services (ECS, RDS, S3, CloudFront, etc.
  • Hands on with modern workflows and tooling, for example GitHub, GitHub Actions, Linear, Sentry
  • Ability to scope medium sized tasks, estimate, and deliver end to end within established patterns
  • Eagerness to learn from senior teammates, share knowledge, and grow technical depth
  • Strong communication skills and a collaborative, problem-solving mindset.

Nice to have:

  • Experience working in a startup or scale-up environment
  • Enthusiasm for improving performance, code quality and developer experience.

Why join Zelt:

  • Join a high-growth SaaS company backed by the investors of Notion, Spotify and Airbnb at exactly the right stage: proven product, strong momentum and still small enough that every engineer shapes the platform
  • Work with an experienced, international team that ships fast and delivers features used every day
  • Build and ship AI features in production, from model integration to scale and reliability
  • See direct impact and visibility for your work rather than being one of hundreds in a large org
  • Be part of a culture that values curiosity, technical excellence and continuous learning, with clear paths to take on bigger responsibilities
  • Competitive compensation and benefits, including health insurance, with big technical challenges ahead.

Your work at Zelt will not disappear into the background, it will help define how modern companies run their people operations.

Full Stack Engineer employer: Zelt

Zelt is an exceptional employer for Full Stack Engineers, offering a unique opportunity to influence the growth of a cutting-edge SaaS platform in a collaborative and supportive environment. With a strong focus on employee development, competitive compensation, and the chance to work alongside experienced professionals, Zelt fosters a culture of curiosity and technical excellence, ensuring that your contributions are both visible and impactful. Join us at this pivotal moment and be part of a team that values innovation and continuous learning.
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Contact Detail:

Zelt Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Full Stack Engineer

✨Tip Number 1

Network like a pro! Reach out to current employees at Zelt on LinkedIn or through mutual connections. A friendly chat can give you insider info and might just get your foot in the door.

✨Tip Number 2

Show off your skills! If you’ve got a GitHub profile, make sure it’s up to date with your best projects. Highlight any fullstack features you've built using React, TypeScript, or Node.js – this is your chance to shine!

✨Tip Number 3

Prepare for the technical interview by brushing up on your coding skills. Practice common algorithms and system design questions, especially those related to AWS and PostgreSQL, so you can impress the team at Zelt.

✨Tip Number 4

Don’t forget to 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 the Zelt team.

We think you need these skills to ace Full Stack Engineer

React
TypeScript
Node.js
NestJS
PostgreSQL
AWS
GitHub
GitHub Actions
Docker
CloudFront
S3
RDS
Collaboration
Problem-Solving
Communication Skills

Some tips for your application 🫡

Tailor Your CV: Make sure your CV reflects the skills and experiences that match what we're looking for in a Full Stack Engineer. Highlight your experience with React, TypeScript, Node.js, and PostgreSQL to show us you're the right fit!

Craft a Compelling Cover Letter: Use your cover letter to tell us why you're excited about joining Zelt. Share your passion for building features and how you can contribute to our mission of reshaping people operations. Let your personality shine through!

Showcase Your Projects: If you've worked on any relevant projects, whether personal or professional, make sure to include them. We love seeing real examples of your work, especially if they demonstrate your fullstack capabilities and problem-solving skills.

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates from our team. We can't wait to hear from you!

How to prepare for a job interview at Zelt

✨Know Your Tech Stack

Make sure you’re well-versed in React, TypeScript, Node.js, and PostgreSQL. Brush up on your knowledge of AWS services too, as they’re crucial for the role. Being able to discuss your experience with these technologies confidently will show that you’re ready to hit the ground running.

✨Showcase Your Problem-Solving Skills

Prepare to discuss specific challenges you've faced in previous projects and how you overcame them. Zelt values a collaborative, problem-solving mindset, so be ready to share examples that highlight your ability to work through issues effectively with your team.

✨Demonstrate Your Passion for Learning

Zelt is looking for someone eager to learn from senior teammates. Be prepared to talk about how you’ve sought out new knowledge or skills in the past. This could be through online courses, personal projects, or even contributions to open-source. Show them you’re committed to growing your technical depth!

✨Engage with Their Mission

Familiarise yourself with Zelt’s mission to revolutionise people operations. During the interview, express your enthusiasm for their product and how you see yourself contributing to its growth. This will demonstrate that you’re not just looking for any job, but that you genuinely want to be part of their journey.

Full Stack Engineer
Zelt
Location: Slough
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Z
  • Full Stack Engineer

    Slough
    Full-Time
    36000 - 60000 £ / year (est.)
  • Z

    Zelt

    50-100
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