Frontend Developer | React | B2B SaaS Product
Frontend Developer | React | B2B SaaS Product

Frontend Developer | React | B2B SaaS Product

Full-Time 50000 - 70000 £ / year (est.) No home office possible
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SENZO

At a Glance

  • Tasks: Build and improve a React-based front end for a B2B SaaS data platform.
  • Company: Early-stage tech company focused on real-time systems and analytics.
  • Benefits: Competitive salary, meaningful ownership, and opportunities for growth.
  • Why this job: Make a real impact while shaping the future of a cutting-edge platform.
  • Qualifications: 4+ years of practical React experience and strong TypeScript skills.
  • Other info: Hybrid work environment with a low ego, product-focused culture.

The predicted salary is between 50000 - 70000 £ per year.

Location: Hybrid (offices in London, near Oxford or Cambridge)

We are working with an early stage technology company building a production grade B2B SaaS data platform for real time systems and analytics at scale. While the business has roots in hardware systems, the real focus is the software platform that turns live data into usable insight. They have recently hired their first dedicated front end engineer and are now looking to add a mid to senior Front End Engineer to work alongside them as the platform continues to mature.

This is a hands on role for someone who enjoys building well structured front end systems, improving quality over time, and working closely with backend and platform teams in a fast moving environment. The business is well funded, gaining strong client traction, and has real expansion plans across the next 12 months as they ramp up for series A.

What you will get:

  • Meaningful ownership of front end features and structure as the platform evolves
  • The chance to help shape patterns and standards alongside an early front end hire
  • Hands on work on data rich and real time interfaces
  • Close collaboration with platform and backend engineers
  • A low ego, product focused engineering environment with room to grow

What you will be doing:

  • Building and improving a React based front end used in real world environments, breaking the organic monolith structure that has grown into modern modular architecture
  • Developing dashboards, visualisations and data driven UI components
  • Contributing to front end structure, patterns and best practices
  • Working closely with backend and platform teams on APIs and data flow
  • Helping improve performance, reliability and maintainability of the UI
  • Supporting the platform as it moves from early build toward a more scalable phase

This is not a pure architecture role. It is suited to someone who still enjoys being close to the code while helping raise the overall front end bar.

What we are looking for:

  • A front end specialist with strong, practical React experience (typically 4 plus years)
  • Strong experience with TypeScript in modern React codebases
  • Proven experience building production front ends used by real customers
  • Comfortable working with state heavy, highly interactive user interfaces
  • Experience building or maintaining complex, data rich or real time front end applications in production environments
  • Able to work effectively in small, high ownership teams where communication and pragmatism matter
  • A production first mindset, focused on maintainability, reliability and clarity over novelty

Background is flexible. What matters most is having built and shipped real front end systems and understanding how they behave in production.

If you are looking for a front end role with real impact and strong growth potential, I would be happy to share more context.

Salary: £50,000 to £70,000 plus benefits

Important: No sponsorship available. Applicants must already be UK based.

Frontend Developer | React | B2B SaaS Product employer: SENZO

Join an innovative early-stage technology company that values meaningful ownership and collaboration in a low-ego, product-focused engineering environment. With a strong emphasis on employee growth and the opportunity to shape the future of a cutting-edge B2B SaaS data platform, this role offers a unique chance to work closely with talented teams while enjoying the flexibility of a hybrid work model in vibrant locations like London, Oxford, or Cambridge.
SENZO

Contact Detail:

SENZO Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Frontend Developer | React | B2B SaaS Product

✨Tip Number 1

Network like a pro! Reach out to your connections in the tech industry, especially those who work with B2B SaaS products. A friendly chat can lead to referrals or insider info about job openings that aren't advertised.

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your React projects and any data-driven interfaces you've built. This gives potential employers a taste of what you can do and sets you apart from the crowd.

✨Tip Number 3

Prepare for interviews by brushing up on common frontend challenges and best practices. Be ready to discuss how you've improved performance and maintainability in past projects—this is key for a role focused on real-time systems.

✨Tip Number 4

Apply through our website! We love seeing candidates who are genuinely interested in our company. Tailor your application to highlight your experience with TypeScript and complex UIs, and let us know why you're excited about this opportunity.

We think you need these skills to ace Frontend Developer | React | B2B SaaS Product

React
TypeScript
Frontend Development
Data Visualisation
UI Component Development
API Integration
Performance Optimisation
Maintainability
Real-Time Systems
Modular Architecture
Collaboration with Backend Teams
Production Environment Experience
Communication Skills
Problem-Solving Skills

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your React experience and any relevant projects you've worked on. We want to see how your skills align with our needs, so don’t be shy about showcasing your best work!

Craft a Compelling Cover Letter: Your cover letter is your chance to tell us why you’re the perfect fit for this role. Share your passion for frontend development and how you can contribute to our B2B SaaS platform. Keep it engaging and personal!

Showcase Your Projects: If you’ve built any data-rich or real-time applications, make sure to include them in your application. We love seeing practical examples of your work, especially if they demonstrate your problem-solving skills and creativity.

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’re considered for the role. Plus, it shows you’re keen to join our team!

How to prepare for a job interview at SENZO

✨Know Your React Inside Out

Make sure you brush up on your React skills before the interview. Be ready to discuss your experience with building production front ends and how you've tackled challenges in state management and interactivity. They’ll want to see that you can not only code but also understand the nuances of React in a real-world context.

✨Showcase Your Problem-Solving Skills

Prepare to share specific examples of how you've improved performance, reliability, or maintainability in past projects. Think about times when you had to collaborate closely with backend teams and how you navigated those interactions. This will demonstrate your ability to work effectively in a team-oriented environment.

✨Familiarise Yourself with B2B SaaS Products

Since this role is focused on a B2B SaaS data platform, it’s crucial to understand the unique challenges and requirements of such products. Research their market, competitors, and potential user needs. This knowledge will help you speak confidently about how you can contribute to their goals.

✨Ask Insightful Questions

Prepare thoughtful questions that show your interest in the company’s growth and the role itself. Inquire about their plans for scaling the platform and how they envision the front end evolving. This not only shows your enthusiasm but also helps you gauge if the company aligns with your career aspirations.

Frontend Developer | React | B2B SaaS Product
SENZO
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