Job Description

Senior Front-end Developer

of the Role:

A Senior Frontend Developer is an experienced software engineer with deep expertise in frontend technologies, architecture, and development best practices. This role is responsible for aligning web design with user experience requirements, optimizing applications for maximum performance and scalability, and ensuring brand consistency across all web interfaces.

In this position,you will develop and maintain a large-scale Angular application, collaborating closely with designers, product managers, backend engineers and QA to ensure seamless integration and high-quality user experiences.

Beyond hands-on coding, a Senior Frontend Developer plays a critical role in mentoring junior engineers, driving technical excellence within the squad, and ensuring adherence to best practices. You will actively contribute to the squad's technical execution while also influencing broader architectural and technical decisions. Your work will help ensure that the web applications we deliver are scalable, maintainable, and aligned with our squad’s product vision.

What You'll Do:

• Translate web design mockups and feature requirements into functional, mobile friendly websites.

• Ensure cross-browser compatibility and optimize application for maximum speed and scalability.

• Write clean, maintainable, and reusable code following best practices and design patterns.

• Conduct and participate in code reviews to ensure high quality and consistent code standards.

• Write and maintain unit, integration and E2E tests and help maintain existing test coverage to ensure software quality.

• Collaborate closely with other teams to implement seamless user experience.

• Debug and troubleshoot frontend issues, perform root cause analysis and implement reliable solutions.

• Participate in Agile ceremonies( daily standups, sprint planning, retrospective )

• Mentor and support junior developers through knowledge sharing, code review and code pairing sessions.

• Stay up to date with emerging frontend technologies and propose improvements.

• Related duties as assigned. 

What You'll Bring:

• 6+ years of professional experience building modern web applications.

  • 3+ years hands on experience with:

    • HTML, CSS, JavaScript, and modern frontend frameworks (Angular 16+, React, Vue, RxJS, reactive state management, etc.).

    • Frontend Architecture including:

      • Micro frontends ( Webpack Module Federation, Single SPA)

      • Monorepos (e.g., Nx, Turborepo)

• Strong proficiency in:

  • Typescript, modern JavaScript (ES6+), HTML5 and CSS3

  • CSS Preprocessors (SCSS/SASS/LESS), Tailwind CSS

  • Working with RESTful services, APIs and WebSockets

  • Package managers (npm/yarn) 

• Solid understa nding of design patterns and component driven development.

• Strong understanding of web performance optimization, including:

  • JavaScript optimization (e.g.lazy loading, bundle analysis and caching)

  • CSS optimization (e.g., critical CSS, CSS coverage)

  • Image Optimization (compression, format(webp) )

• Hands on experience with browser testing and debugging tools.

• CI/CD experience:

  • Setting up and maintaining build pipelines (Building and Code quality, linters, unit test as part of release , integrations)

  • Deploying frontend applications

• Experience with frontend tooling:

  • Build tools (e.g., Webpack, Vite)

  • Code Quality like Prettier, ESLint, TypeScript

• Hands-on experience with version control systems such as Git

• Effectively collaborate with product managers, backend developers, designers , QA and other team members.

• Stay up to date with emerging technologies

• Relevant soft skills like communication and problem-solving mindset

Personal Attributes 

• Analytical and synthesis skills. 

• Problem-solving skills. 

• Autonomy and resourcefulness. 

• Curious and eager to learn.

• Sense of initiative. 

• Attention to detail. 

• Flexibility in organizing work. 

• Ability to work as part of a team. 

• Ability to adapt to change. 

• Results driven.

About Flutter CEE

We are Flutter Central & Eastern Europe (CEE).

As a proud member of the Flutter family - a global leader in sports betting and iGaming - we are building one of the Group’s most dynamic tech and product hubs in Central and Eastern Europe. We aren’t just here to participate. We’re here to change the game. By uniting local powerhouses like MaxBet, Adjarabet.com, and Adjarabet.am, we combine deep regional expertise with the scale and strength of Flutter’s global platforms. We’re setting a new standard for entertainment, responsibility, and innovation - powered by real customer signals that shape everything we build.

Settling for the status quo isn’t in our DNA. We build systems designed to scale.

We’re moving faster, thinking bigger, and putting our customers exactly where they belong: at the heart of every decision. We start by listening to our customers and the communities we serve. What we see, hear, and learn become clear signals, and those signals quickly shape product decisions, better experiences, and responsible innovation.

Technology powers our ambition. The Signature System - our operating model - makes our signal-led approach repeatable and scalable across markets. It’s how we move fast and grow with confidence.

As part of Flutter, we benefit from the Group’s collective advantage - the Flutter Edge. It allows us to identify success in one market, replicate it across brands, and implement proven ideas quickly - with customers always at the forefront.

We’re a team of thousands, driven by a challenger mindset and a shared commitment to lead. We are shaping the future of iGaming in Central and Eastern Europe right here, right now, and our technology and product teams are defining what responsible innovation looks like in practice - not just in theory.

We are Flutter Central & Eastern Europe (CEE).

Built on experience. Built to lead.

Local champions. Global infrastructure.

Why choose us

At Flutter CEE, people have access to vast opportunities for career growth and self-development. Our employee benefits package goes far beyond offering the minimum: We support our people in becoming their best version at work and beyond - and our benefits reflect that commitment.  

These are some of the benefits included in our employee package:  

• Generous annual leave 

• Hybrid work

• Individual health insurance 

• Paid sick leave 

• Paid maternity & paternity leave 

• Family reward

• Performance & referral bonuses 

• Loyalty award