Senior JavaScript / TypeScript Engineer in London

Senior JavaScript / TypeScript Engineer in London

London Full-Time 70000 - 90000 € / year (est.) Home office (partial)
Oceanredpartners

At a Glance

  • Tasks: Build responsive frontend applications for live trading infrastructure using JavaScript and TypeScript.
  • Company: Dynamic tech company focused on financial markets with a collaborative culture.
  • Benefits: Competitive salary, private medical, 25 days leave, flexible hours, and more.
  • Other info: Join a small, innovative team with excellent career growth opportunities.
  • Why this job: Make a real impact in the fast-paced world of trading technology.
  • Qualifications: 5+ years of experience in JavaScript/TypeScript and strong frontend development skills.

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

Overview

Company | Exchange technology & capital markets infrastructure

Position | Senior JavaScript / TypeScript Engineer

Impact | Build software used to trade, monitor and manage live financial markets

Size | ~200 people globally

Stack | JavaScript, TypeScript, React, Python APIs

Location | London

Hybrid | 3 days per week in the office

Offer | Competitive salary + bonus

Benefits | Private medical, 25 days leave, pension, bonus, enhanced family policies, life assurance, income protection, flexible working hours, cycle to work scheme and more.

The Work

Some frontend engineering jobs are about dashboards and admin panels. This one isn’t. You’ll be building applications used to operate and monitor live trading infrastructure across multiple financial markets. The systems process large volumes of data and need to remain clear, reliable and responsive at all times. You’ll work closely with product engineers, infrastructure specialists and QA to build the interfaces used to control complex trading technology. That means turning large streams of market data into tools traders and operators can actually use. You’ll also get the space to shape how things are built. You’ll contribute to architecture decisions, guide more junior engineers and work with designers to turn wireframes into applications that feel fast and intuitive even when handling large volumes of information. The engineering group you’ll join is small enough that your ideas will be heard, but experienced enough that you’ll always have strong people around you to challenge and support your thinking. And the problems you’ll work on aren’t theoretical. Your code will sit directly alongside real market infrastructure used by trading firms across Europe.

What you’ll be doing

  • Building responsive frontend applications in JavaScript / TypeScript with React
  • Turning complex market and operational data into clear user interfaces
  • Working with Python APIs and backend services
  • Collaborating with UX designers to bring wireframes into production systems
  • Reviewing code and guiding engineers earlier in their careers
  • Improving testing, reliability and engineering standards across the platform

What you’ll need

To do this well, you’ll likely bring:

  • Strong JavaScript / TypeScript experience with React
  • Around 5+ years building frontend applications
  • Experience working on data-heavy applications
  • Solid understanding of HTML, CSS and modern web fundamentals
  • Experience with testing, CI/CD and version control

It helps if you’ve worked in financial markets or trading systems before, but it isn’t essential. If you understand how to build reliable applications that handle complex data, you’ll be able to learn the domain.

Interview Process | CV Review → Intro Call → Technical Discussion → Final Interview → Offer

If this sounds like the kind of engineering environment you enjoy, apply and we’ll arrange a confidential conversation to talk through the details.

Senior JavaScript / TypeScript Engineer in London employer: Oceanredpartners

As a Senior JavaScript / TypeScript Engineer at our London-based firm, you'll be part of a dynamic team that thrives on innovation and collaboration. We offer a competitive salary, generous benefits including private medical care and flexible working hours, and a culture that encourages personal growth and the sharing of ideas. Join us to work on impactful projects that shape the future of financial markets while enjoying a supportive environment that values your contributions.

Oceanredpartners

Contact Detail:

Oceanredpartners Recruiting Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior JavaScript / TypeScript Engineer in London

Tip Number 1

Network like a pro! Reach out to your connections in the tech industry, especially those who work in financial markets. A friendly chat can lead to insider info about job openings or even referrals.

Tip Number 2

Prepare for technical discussions by brushing up on your JavaScript and TypeScript skills. Practice coding challenges and review your past projects to showcase your experience during interviews.

Tip Number 3

Don’t underestimate the power of a good follow-up! After interviews, send a quick thank-you email to express your appreciation and reiterate your interest in the role. It keeps you fresh in their minds!

Tip Number 4

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 at StudySmarter.

We think you need these skills to ace Senior JavaScript / TypeScript Engineer in London

JavaScript
TypeScript
React
Python APIs
Frontend Development
Data Handling
HTML

Some tips for your application 🫡

Tailor Your CV:Make sure your CV highlights your experience with JavaScript, TypeScript, and React. We want to see how you've tackled data-heavy applications, so don’t hold back on those details!

Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Share why you're excited about building applications for live trading infrastructure and how your skills align with our needs. Let us know what makes you tick!

Showcase Your Projects:If you've worked on any relevant projects, especially in financial markets or with complex data, make sure to mention them. We love seeing real-world examples of your work and how you’ve made an impact.

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’s super easy!

How to prepare for a job interview at Oceanredpartners

Know Your Tech Stack

Make sure you’re well-versed in JavaScript, TypeScript, and React. Brush up on your knowledge of Python APIs too, as they’ll be part of the conversation. Be ready to discuss how you've used these technologies in past projects.

Showcase Your Problem-Solving Skills

Prepare to talk about specific challenges you've faced while building data-heavy applications. Think of examples where you turned complex data into user-friendly interfaces. This will demonstrate your ability to handle real-world problems.

Collaborate Like a Pro

Since you'll be working closely with product engineers and UX designers, highlight your teamwork experience. Share stories that showcase your ability to collaborate effectively and how you’ve contributed to architecture decisions in previous roles.

Ask Insightful Questions

Prepare thoughtful questions about the company’s approach to building reliable applications and their engineering standards. This shows your genuine interest in the role and helps you assess if the company is the right fit for you.