JavaScript Engineer

JavaScript Engineer

London Full-Time 66000 - 88000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Shape the architecture of a climate tech platform and build impactful APIs.
  • Company: Join an industry-leading climate tech company transforming carbon markets with innovative solutions.
  • Benefits: Enjoy equity, unlimited leave, private health insurance, and monthly perks like office lunches and drinks.
  • Why this job: Make a real environmental impact while working in a dynamic, fast-paced start-up environment.
  • Qualifications: Experience with TypeScript, Node.js, React, and a passion for technology-driven change.
  • Other info: Quick interview process, typically completed in 2 weeks.

The predicted salary is between 66000 - 88000 £ per year.

Fresh off the back of $96M in VC funding, my client is scaling rapidly and working with top-tier partners to transform carbon markets through data, science, and powerful digital tools. They are an industry-leading climate tech company on a mission to drive real, measurable environmental impact.

As a Senior Full Stack Engineer, you’ll help shape the architecture and infrastructure of their core platform—automating complex workflows, integrating with external systems, and building production-grade APIs and data solutions that drive climate action at scale.

I’m looking to speak to people with experience working with:

  • TypeScript & Node.js
  • React (or strong modern frontend experience)
  • REST API development
  • Start-up or Scale-up experience
  • A strong product led mindset
  • A passion for making a meaningful impact through technology

What’s in it for you?

  • Equity
  • Unlimited Annual Leave
  • Private Health Insurance & Life Assurance
  • Monthly Deliveroo Budget + Catered Office Lunches
  • Monthly Bar Tab & Weekly Office Drinks

The interview process is typically completed in 2 weeks and is as follows:

  • HM Call – FS Lead (Rob) / EM (Serge)
  • Coding Interview
  • System Design Interview
  • F2F Final Interview (multiple stakeholders)

Fancy finding out more? Click APPLY, and I (Sam Barcia) will be in touch to discuss further!

JavaScript Engineer employer: Wave Talent

As a leading climate tech company, we offer an exceptional work environment that fosters innovation and collaboration, particularly for our Senior Full Stack Engineers. Located in the vibrant area of Old Street, our hybrid model allows for flexibility while enjoying a range of benefits including equity, unlimited annual leave, and catered office lunches. Join us to not only advance your career with ample growth opportunities but also to contribute to meaningful environmental change through cutting-edge technology.
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Contact Detail:

Wave Talent Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land JavaScript Engineer

✨Tip Number 1

Familiarise yourself with the latest trends in TypeScript and React. Being up-to-date with the latest features and best practices will not only boost your confidence but also impress the interviewers during technical discussions.

✨Tip Number 2

Prepare to discuss your experience with REST API development. Be ready to share specific examples of projects where you’ve built or integrated APIs, as this is a key requirement for the role.

✨Tip Number 3

Showcase your start-up or scale-up experience by highlighting how you've contributed to rapid growth or innovation in previous roles. This will demonstrate your adaptability and readiness for a fast-paced environment.

✨Tip Number 4

Express your passion for climate tech and making a meaningful impact through technology. Research the company’s mission and be prepared to discuss how your values align with theirs during the interview process.

We think you need these skills to ace JavaScript Engineer

Proficiency in TypeScript
Strong experience with Node.js
Expertise in React or modern frontend frameworks
REST API development
Experience in start-up or scale-up environments
Strong understanding of software architecture and infrastructure
Ability to automate complex workflows
Integration skills with external systems
Experience in building production-grade APIs
Data solutions development
Product-led mindset
Passion for environmental impact through technology
Collaboration and teamwork skills
Problem-solving abilities
Adaptability to fast-paced environments

Some tips for your application 🫡

Understand the Role: Before applying, make sure you fully understand the responsibilities of a Senior Full Stack Engineer. Familiarise yourself with the technologies mentioned, such as TypeScript, Node.js, and React, as well as the company's mission in climate tech.

Tailor Your CV: Customise your CV to highlight relevant experience in full stack development, particularly with the technologies listed in the job description. Emphasise any start-up or scale-up experience and your product-led mindset.

Craft a Compelling Cover Letter: Write a cover letter that showcases your passion for technology and its impact on the environment. Mention specific projects where you've automated workflows or built APIs, demonstrating your ability to contribute to their mission.

Prepare for Interviews: Anticipate the interview process by preparing for coding challenges and system design discussions. Brush up on your technical skills and be ready to discuss how your experience aligns with the company's goals.

How to prepare for a job interview at Wave Talent

✨Showcase Your Technical Skills

Be prepared to demonstrate your expertise in TypeScript, Node.js, and React during the coding interview. Brush up on your knowledge of REST API development and be ready to solve problems on the spot.

✨Understand the Company’s Mission

Familiarise yourself with the company's focus on climate tech and their mission to drive environmental impact. This will help you align your answers with their values and show your passion for making a difference through technology.

✨Prepare for System Design Questions

In the system design interview, think about how you would architect scalable solutions. Be ready to discuss your thought process and the trade-offs of different design choices, especially in relation to automating workflows and integrating systems.

✨Engage with Multiple Stakeholders

During the final face-to-face interview, expect to meet various stakeholders. Prepare questions that reflect your interest in the team dynamics and how your role as a Senior Full Stack Engineer can contribute to the overall success of the company.

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