Founding Front-End Engineer - Barrington James in City of London
Founding Front-End Engineer - Barrington James

Founding Front-End Engineer - Barrington James in City of London

City of London Full-Time 36000 - 60000 £ / year (est.) No home office possible
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Jobster

At a Glance

  • Tasks: Lead the design and development of scalable backend services and APIs.
  • Company: Join an innovative UK tech startup focused on optimising clinical trials with AI.
  • Benefits: Competitive salary, growth opportunities, and a collaborative work environment.
  • Why this job: Shape a groundbreaking product and influence the engineering culture from the start.
  • Qualifications: 4+ years in backend systems, strong API design, and cloud platform familiarity.
  • Other info: Be part of a fast-paced team where your contributions are highly visible.

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

Overview

I am partnering with an early-stage UK tech startup focused on using data and AI to optimise and accelerate the design of clinical trials. We’re seeking a highly experienced Senior Back-End Engineer to join a fast-growing, deep-tech venture at an early stage. As a key member of the founding engineering team, you will shape and build the core server-side architecture that underpins our next-generation platform. You’ll work closely with product and engineering leadership to design, implement, and scale reliable backend services, APIs, and systems — turning cutting-edge ideas into real-world products.

Responsibilities

  • Lead the design, development, and maintenance of scalable, secure, and high-performance backend services and APIs.
  • Collaborate across the engineering team — including frontend, product, and QA — to architect solutions that address business needs and technical challenges.
  • Drive the full development lifecycle: requirements, design, implementation, testing, deployment, and support.
  • Improve and optimise existing systems for performance, reliability, and maintainability.
  • Conduct code reviews, provide technical leadership, and mentor junior engineers to uphold best practices.
  • Identify and address security, performance, and scaling bottlenecks.

What We’re Looking For

  • 4+ years of hands-on experience building backend systems in a production environment.
  • Strong experience with backend languages and frameworks (e.g., Java, Spring, Python, Go, Node.js — adaptable to your stack).
  • Proven track record designing and implementing RESTful APIs and microservices.
  • Solid understanding of databases (SQL and NoSQL) and effective data modeling.
  • Familiarity with cloud platforms (AWS, GCP, Azure) and CI/CD pipelines.
  • Experience with performance optimisation, security best practices, and scalable architectures.
  • Excellent communication skills and ability to work effectively in an agile, cross-functional team.

Nice-to-Have

  • Experience with distributed systems and asynchronous architectures.
  • Knowledge of observability tools, testing frameworks, and containerisation (Docker, Kubernetes).
  • Previous involvement in early-stage or founding engineering teams.

Why Join?

  • Play a pivotal role in shaping a product from the ground up.
  • Influence technical direction and engineering culture.
  • Work in a collaborative, fast-paced environment where your impact is visible.
  • Competitive compensation and growth opportunities.

Please click ‘apply’ or contact the recruiter for further information.

Founding Front-End Engineer - Barrington James in City of London employer: Jobster

At Barrington James, we pride ourselves on being an exceptional employer, offering a unique opportunity to join a pioneering tech startup in London focused on revolutionising clinical trials through data and AI. Our collaborative work culture fosters innovation and creativity, allowing you to play a crucial role in shaping our product while enjoying competitive compensation and ample growth opportunities within a supportive team environment.
Jobster

Contact Detail:

Jobster Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Founding Front-End Engineer - Barrington James in City of London

✨Tip Number 1

Network like a pro! Reach out to people in the industry, attend meetups, and connect with potential colleagues on LinkedIn. You never know who might have the inside scoop on job openings or can refer you directly.

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your projects, especially those that highlight your backend expertise. This is your chance to demonstrate what you can bring to the table beyond just a CV.

✨Tip Number 3

Prepare for interviews by brushing up on technical questions and coding challenges. Practice makes perfect, so consider mock interviews with friends or use online platforms to get comfortable with the process.

✨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 our team!

We think you need these skills to ace Founding Front-End Engineer - Barrington James in City of London

Backend Development
Java
Spring
Python
Go
Node.js
RESTful APIs
Microservices
SQL
NoSQL
Cloud Platforms (AWS, GCP, Azure)
CI/CD Pipelines
Performance Optimisation
Security Best Practices
Agile Methodologies

Some tips for your application 🫡

Tailor Your CV: Make sure your CV reflects the skills and experiences that match the job description. Highlight your backend development experience, especially with languages and frameworks mentioned in the listing.

Craft a Compelling Cover Letter: Use your cover letter to tell us why you're excited about this role and how you can contribute to our founding team. Share specific examples of your past work that align with the responsibilities outlined in the job description.

Showcase Your Projects: If you've worked on relevant projects, whether personal or professional, include them in your application. We love seeing real-world applications of your skills, especially those that demonstrate your ability to build scalable and secure systems.

Apply Through Our Website: We encourage you to apply directly through our website for a smoother process. It helps us keep track of applications and ensures you don’t miss out on any important updates from us!

How to prepare for a job interview at Jobster

✨Know Your Tech Stack Inside Out

Make sure you’re well-versed in the backend languages and frameworks mentioned in the job description, like Java, Python, or Node.js. Be ready to discuss your past projects and how you’ve used these technologies to solve real-world problems.

✨Showcase Your Problem-Solving Skills

Prepare to talk about specific challenges you've faced in previous roles, especially around performance optimisation and security. Use the STAR method (Situation, Task, Action, Result) to structure your answers and demonstrate your thought process.

✨Collaborate Like a Pro

Since this role involves working closely with frontend engineers and product teams, be prepared to discuss how you’ve successfully collaborated in the past. Share examples of how you’ve architected solutions that meet both business needs and technical challenges.

✨Ask Insightful Questions

At the end of the interview, don’t forget to ask questions that show your interest in the company’s vision and culture. Inquire about their approach to scaling systems or how they handle code reviews, as this will demonstrate your eagerness to contribute to their founding team.

Founding Front-End Engineer - Barrington James in City of London
Jobster
Location: City of London
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