Frontend Senior Developer

Frontend Senior Developer

JavaScript

Księdza Józefa Tischnera 8, Kraków

IG Group

Full-time
Permanent
Senior
Hybrid

Tech stack

    JavaScript

    advanced

    HTML

    advanced

    CSS

    advanced

    Amazon AWS

    advanced

Job description

So, who are we?

Hello, we're IG Group. We are a publicly-traded FTSE250 FinTech company that runs mobile, web, and desktop platforms that help our clients trade stocks & shares, leveraged products, Futures & Options, and Crypto.


We are ambitious. Over 340,000 people already use our platforms. We're global with offices in 18 countries and products in 16 regions. We're hungry to move faster, ship better product for our customers and grow our user base. We believe in high autonomy, and we want people who are looking to do things differently in order to create better experiences for our customers.


We work in cross-functional teams and are laser-focused on increasing the number of active clients we serve to drive sustainable growth.


Your team

We are the Web Trading team, situated within the UK division. Our mission sits at the heart of IG’s core business, centered on delivering high-quality UI experiences enabling our customers to place & manage trades with clarity, confidence & ease. You will work collaboratively in a cross-functional team, actively participate in modern engineering practices, and help shape the future direction of our modern trading platforms. 


Your role in the Team's Success

As a Senior Engineer, you’ll be working closely with other engineers on the front-end & middleware layer as well as design to refine & maintain IG's web trading platforms. Building on performant, low-latency front-end applications, you’ll be responsible for ensuring your code serves IG’s clients in the best possible way. You’ll be well-versed in JavaScript, utilising SPA frameworks such as React & Ember.js, and will be passionate about ensuring quality and driving modern web industry practices. The right candidate will also be comfortable contributing to a large code base, iterating on improvements to build pipelines & AWS infrastructure.


What you'll do

  • Develop responsive cross-platform interfaces built using React & Ember.js

  • Consolidate IG's Front-end technology in line with industry standards

  • Write automated tests (performance, unit, integration, acceptance & end-to-end)

  • Collaborate with other cross-functional teams to define, design, and push new front-end solutions

  • Periodically take part in the support rota that considers being available out of working hours

  • Take part in regular pair programming & code reviews to support engineers

  • Promote knowledge sharing within and beyond the team

  • Actively engage in the agile development process leading development on key initiatives

  • Develop & maintain existing AWS & GitLab pipeline infrastructure


What you'll need for this role

Key Qualification Requirements:

  • Extensive knowledge of JavaScript, HTML & CSS

  • Minimum of 8+ years of commercial experience in software delivery

  • Relevant qualification to match

  • Track record of delivering low-latency, highly performant web applications

  • Experience in coaching/guiding others in engineering best practices

  • Strong performance & architecture-based mindset

  • Excellent communication skills and a regular key discussion maker in large teams

  • Experience with AWS & Terraform & GitLab Pipeline configuration

  • Great attention to detail, comfortable with regularly reviewing pull requests

  • Comfortable pair programming guiding less experienced engineers


Desirable:

  • Experience with Ember.js (or a willingness to learn)

  • Full-stack experience with the ability to navigate and update existing middleware to unblock front-end development

  • Experience with Java, Spring & Lambda

  • A passion for the trading & investing space


How we work

We try to take a thoughtful approach to our ways of working as a company. We follow a hybrid working model with 3 days in the office -- which we think balances the need to collaborate effectively and connect with each other. When it comes to how we deliver, there are 5 things we want everyone to do to drive high performance, better learning and career satisfaction:


  • Lead and Inspire: Drives trust, alignment, and enthusiasm

  • Think Big: Focus on the problems that most impact commercial outcomes

  • Champion the client: Understand and prioritise the client's needs

  • Deliver at pace: Push for fast, sustainable growth;

  • Raise the bar: Take ownership, be accountable and share feedback


We believe that diversity is vital to success, it fuels creativity, drives innovation, and sets us up for global success. We're committed to building teams with a variety of perspectives and skills to help us realise our vision and strategy. That's why we encourage applications from people with diverse backgrounds and experiences to join us on this journey. Learn more about our D&I approach here.


The Perks

Your growth fuels our success! Thrive with tailored development programs, mentoring opportunities with leaders, and clear career progression. Expand your network through committees, sports and social clubs. Enjoy extra time off for volunteering and community work.

  • Home office equipment reimbursement  

  • Performance-related bonus

  • Private medical cover for you and your family/partner (Medicover)

  • Multikafeteria system (you can choose a multisport card, vouchers, etc.) 

  • Life insurance (Generali) 

  • LinkedIn Learning platform free access

  • Share Plans for Employees

  • Employee-led LGBTQ+, Women’s, Black, and Parents & Carers networks with an annual budget for organizing events & projects that foster an open, diverse, and inclusive culture  

  • Career-focused technical and leadership training in-class and online, incl. unlimited access to the LinkedIn Learning platform

  • Well-being events as well as the Employee Assistance Programme

  • Summer picnic, New Year party, and other social events  

  • 3 additional days off a year - 1 to celebrate your Birthday and 2 for voluntary work

  • App-based parking spot booking system

  • Stretching sessions

  • Wellbeing weeks

Learn more about the Perks here!


Join us for this exciting journey. Apply now!

Published: 21.08.2025
Office location