Senior Front End Developer – AI & LLMs

Senior Front End Developer – AI & LLMs

Full-Time 70000 - 90000 £ / year (est.) Home office (partial)
Modo Energy

At a Glance

  • Tasks: Lead the evolution of our UI architecture and build high-performance user interfaces.
  • Company: Join Modo Energy, a fast-growing AI-native company at the forefront of the energy transition.
  • Benefits: Equity share scheme, top-tier healthcare, 25 days leave, and a vibrant social scene.
  • Other info: Hybrid work environment with a focus on collaboration and career growth.
  • Why this job: Make a real impact in the energy sector while working with cutting-edge technology.
  • Qualifications: 5+ years in Frontend Development, experience with TypeScript, React, and UI design.

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

The energy transition is the biggest infrastructure buildout in human history. Modo Energy is the data platform at the centre of it. We build the benchmarking, forecasting, and valuation tools that the world's most serious energy investors, developers, and operators depend on to make decisions. Founded in 2019, we're 75+ people across London, New York, Sydney, and Madrid; $30M Series B, AI-native, and moving fast. This is a rare chance to join a category-defining company at the moment it's scaling globally.

The Role

We seek a Frontend Engineer to help lead the architectural evolution of our UI. As part of a team, your main goal is to build a frontend architecture that supports rapid, AI-assisted development. We are AI-native and our tech stack is TypeScript, React, and Next.js in a modern monorepo architecture, designed to support rapid feature development and AI-assisted engineering workflows. We are looking for individuals who love product-building and want to work with pace at a mission-oriented start-up.

Responsibilities

  • Architectural Strategy: help with the technical direction for our frontend monorepo to ensure long-term scalability.
  • Component System Architecture: help design and develop our internal UI library (based on MUI).
  • Performance Engineering: help build and improve high-performance, low-latency user interfaces.

Requirements

  • 5+ years of professional experience in Frontend Development.
  • Experience with Material UI (MUI) or similar component libraries.
  • Testing principles and experience with frameworks like Jest and Cypress or Playwright.
  • An eye for design (UI/UX): Ability to build polished, aesthetically pleasing interfaces and bridge the gap between design and engineering.
  • Proficient with Git, Docker, and CI/CD workflows.
  • Familiarity with Monorepo structures and tools (e.g., Turborepo, Yarn Workspaces).
  • Bachelor’s/Master’s degree in Information Technology, Computer Science, or equivalent experience.
  • Any start-up / scale-up experience is beneficial.
  • Familiarity with Python is advantageous.
  • Any experience of the energy sector is highly desirable.

Salary & Benefits

  • Equity Share Scheme
  • Private top-tier Healthcare and Dental coverage with Bupa
  • Salary sacrifice pension with 3% employer contribution
  • 25 days annual leave (excluding bank holidays), plus 5 flexible days to be taken on a Monday or a Friday.
  • A great social scene, company nights out, outdoor events, networking events, and lots of snacks and drinks.

Modo Energy's policy is to pay top of personal market - if you're exceptional, we'll make it work. We want the best engineers!

NOTE: Hybrid Work Environment. We are all in-office days Tuesday, Wednesday & Thursday, and we are based by Euston Square. Modo Energy is an equal opportunity employer. Employment decisions are made on the basis of qualifications, merit, and business need. We do not discriminate on the basis of age, national origin, physical or mental disability, race, religion, pregnancy, sexual orientation, gender identity, veteran status, or any other characteristic protected under applicable UK law, including the Equality Act 2010.

What You Can Expect From Us

At Modo Energy, we believe that exceptional work deserves exceptional reward. We're a high-performance team; ambitious, collaborative, and genuinely motivated by the scale of what we're trying to build. You’ll have real ownership from day one, work alongside some of the brightest people in the industry, and be part of a company that's defining a new category in the global energy market. We’re hybrid: everyone works Tuesday to Thursday in office, with Monday and Friday flexible. We offer top-of-market compensation, equity for every employee, and the space to take your career wherever you want it to go. We’re looking for people who want to do the best work of their careers. If that’s you, we want to talk.

If you require assistance or a reasonable accommodation during the application or interview process, please contact us at careers@modoenergy.com

Senior Front End Developer – AI & LLMs employer: Modo Energy

Modo Energy is an exceptional employer that offers a dynamic and collaborative work environment, where employees are empowered to take ownership of their projects from day one. With a strong focus on innovation in the energy sector, we provide top-of-market compensation, equity share schemes, and comprehensive healthcare benefits, all while fostering a culture of growth and flexibility through our hybrid work model. Join us in shaping the future of energy with a team that values ambition and creativity, and enjoy the perks of a vibrant social scene and professional development opportunities in a rapidly scaling company.

Modo Energy

Contact Details:

Modo Energy Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior Front End Developer – AI & LLMs

Join Local Tech Meetups

Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Modo Energy or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!

Contribute to Open Source Projects

Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Modo Energy.

Tap into Online Developer Communities

Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Modo Energy.

Explore Job Boards Specifically for Tech Roles

Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Modo Energy that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!

We think you need these skills to ace Senior Front End Developer – AI & LLMs

TypeScript
React
Next.js
Frontend Development
Material UI (MUI)
Jest
Cypress

Some tips for your application 🫡

Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.

Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Modo Energy.

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Modo Energy and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!

Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!

How to prepare for a job interview at Modo Energy

Brush Up on Your Coding Skills

For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.

Know Your Tools and Frameworks

Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Modo Energy uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.

Showcase Your Projects

Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.

Prepare for Behavioural Questions

While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.