Senior Front-End Engineer

Reposted 11 Days Ago
Be an Early Applicant
Kraków, Małopolskie
In-Office
17K-17K Annually
Senior level
Fintech • Payments • Financial Services
The Role
Lead development of React Native features for trading platforms, architect scalable solutions for real-time financial data, and mentor junior developers.
Summary Generated by Built In

Job Title

Senior Front-End Engineer

Job Description

Minimum Compensation

Minimum compensation: starting from 18 000 PLN. The final offer will be determined based on the candidate's experience and competencies. 

So, who are we?

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

We are ambitious. Over 540,000 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.

Your team

You'll join the Platform team that powers IG's product engineering in UK – owning shared services, infrastructure, and frontend capabilities.
We champion engineering excellence and continuously evolve our platform, so product-aligned teams can focus obsessively on customers and commercial outcomes.
Your work will increase the impact of every engineer building for our clients.

Your role in the Team's Success

Your primary responsibility will be to lead the development of complex web applications for our award-winning trading platforms — and take ownership of how they're built, deployed, and served to clients.

You'll build performant web solutions, while also understanding the infrastructure that delivers them — from CI/CD pipelines through to CDN configuration and cloud deployments.

You'll work as a hands-on practitioner who leads by example while mentoring others in the team.

You'll leverage AI-assisted development tools as a core part of your workflow — we expect engineers to actively embrace AI to multiply their impact.

Think and act like an owner — your code directly enable traders to seize market opportunities.

What you'll do
  • Lead the development of complex web features for our award-winning trading platforms, ensuring optimal performance, accessibility, and user experience 

  • Understand and maintain cloud infrastructure for web deployments (e.g. static site hosting on AWS (CloudFront, S3, Route 53)

  • Design and optimise CI/CD pipelines for web applications, improving build speed, deployment reliability, and release confidence 

  • Implement and tune HTTP caching strategies, CDN configurations, and performance optimisations that deliver lightning-fast experiences to traders worldwide 

  • Collaborate with cross-functional teams including backend engineers, designers, and product managers to deliver features that drive business growth and champion the client

  • Actively participate in product development, from requirements discussions to seeing customers using your software in production 

  • Mentor junior developers and contribute to technical decision-making that shapes our web development and deployment standards – raising the bar across the team 

  • Own end-to-end delivery of features – from technical design through deployment and infrastructure – taking accountability for performance, reliability, and user experience 

  • Leverage AI-assisted development tools to accelerate delivery, improve code quality, and stay at the cutting edge of modern engineering practices 

  • Think big about our web architecture – challenge the status quo, propose improvements, and help shape the technical direction of our web platforms and their supporting infrastructure

Who we're are looking for?

For this role, we're looking for someone with: 

  • 5+ years of professional React development experience with a proven track record of delivering production web applications – not just React knowledge, but deep, hands-on experience building and shipping real products 

  • Strong expertise in JavaScript/TypeScript, modern React patterns (hooks, server components, suspense), state management, and web platform fundamentals 

  • Experience with setting up and managing deployments of web applications – you've done this, not just read about it 

  • Strong understanding of HTTP caching – you know when to cache, where to cache, and how to invalidate without breaking things 

  • Battle-tested experience measuring and optimising web application performance – you've profiled, diagnosed, and fixed real performance bottlenecks in production 

  • Experience building and optimising CI/CD pipelines for web deployments – you care about build speed, deployment stability, and developer experience 

  • Experience with real-time data handling, WebSocket connections, and high-frequency data updates 

  • Experience with AI-assisted development tools – we're looking for engineers who see AI as a force multiplier, not a threat 

What you'll need for this role
  • Excellent problem-solving skills with a quality-first, ownership mindset — you build it, you deploy it, you run it, you love it 

  • An AI-positive mindset — you see AI tools as amplifiers of engineering capability, not replacements, and you're excited to push the boundaries of what's possible with AI-assisted development 

  • Strong commitment to engineering excellence: TDD, code reviews, observability, and continuous improvement are how you operate, not boxes you tick 

  • Strong English-language communication skills and the ability to work effectively in globally distributed, cross-functional teams 

  • A keen interest in ongoing learning, both business and technical — you'll gain deep understanding of IG's trading products and financial markets 

  • Familiarity with financial services or trading platforms is highly desirable but not essential 

  • This is a hybrid position (3 days onsite, 2 days remote work)

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 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) 

  • 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 LinkedIn Learning platform

  • Well-being events as well as 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 spots booking system

Learn more about the Perks here!

Join us for this exciting journey. Apply now!

Number of openings

1

Top Skills

Ci/Cd
Context Api
JavaScript
Native Mobile Development
React Hooks
React Native
Redux
Typescript
Websocket
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The Company
HQ: London
2,748 Employees

What We Do

We’ve been at the forefront of trading innovation since 1974, taking on the challenge to deliver an unmatched experience for our clients and raise the bar for tomorrow’s opportunities.

Today, we’re a global fintech company incorporating the IG, tasty, IG Prime, Spectrum and DailyFX brands, with a presence in 18 countries across five continents – Europe, North America, Africa, Asia-Pacific and the Middle East.

We’re an organisation of positive problem-solvers, united and inspired by our purpose, which is to power the pursuit of financial freedom for the ambitious. Our award-winning products and platforms empower go-getters the world over to unlock opportunities around the clock, giving them access to over 19,000 financial markets.

Today, more than 400,000 clients call IG Group home.

IG Group Holdings plc is an established member of the FTSE 250 and holds a long-term investment grade credit rating of BBB- with a stable outlook from Fitch Ratings

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