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Senior UI Engineer (React/React Native) - Sportsbet - 7963


Senior UI Engineer (React/React Native) - Sportsbet

  • Primary Location:
    Cluj - Napoca
  • Contract Type:
  • Employment Basis:

Flexible benefits of your choice

Learning and development opportunities

25 days annual leave

Customized wellbeing programs

Extended health and travel insurances

Top trending technologies

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Position summary: 

Enable the continued product and platform development of our universal (Web / iOS) front-end by contributing to customer facing code in our  React JS / React Native / iOS / HTML / CSS / TypeScript / NodeJS to meet the growing demand of our front-end clients.

The successful candidate will work as a member of a cross-functional agile development team, contributing to the wider development lifecycle by submitting and reviewing pull requests and participating in continuous delivery and release management.

Our senior engineers are trusted to guide a team of their own. As experts in their area, they're the go-to people for big ideas and problem-solving.

We are looking for somebody who is self-starting, passionate about working with our stakeholders to build and deliver amazing customer experiences.




  • Reliability & Scalability
  • Health & Maintenance
  • Tooling, Frameworks & Standards
  • Awareness and Transparency
  • Architecture & Roadmap
  • Development and Enhancement (Near Term and Strategic)
  • Backlog and Prioritisation
  • Cost and Commercial Management

Software Development

  • Be able to guide the team on the best approach to large pieces of work which span multiple components and teams
  • Designing, coding, testing and packaging discrete software components, that work across multiple channels, platforms and browsers
  • Tackle deliverables by researching and weighing up the pros and cons of various routes to select the right approach
  • Developing valuable functional outcomes in line with best practices
  • Modifying & troubleshooting existing and new software components
  • Use your experience to lead reviews of changes
  • Creatively reapply existing learnings to new areas
  • Leveraging the technology, platforms, frameworks, standards & methods supported in Sportsbet
  • Working within, but questioning architectural constraints and guidelines
  • Agreeing interfaces for data creation, extraction, transport and transformation
  • Keeping abreast of trends and opportunities in the software world

Solution delivery:

  • Preparing & maintaining technical documentation (e.g. MRPs, solution design documents)
  • Supporting non-technical stakeholders in a technical manner
  • Liaising with services software engineers for technical requirements and architectural considerations
  • Be a business and tech expert in the UI domain who can guide the team on the best approach for large pieces of work which span multiple components and teams
  • Model high complexity problems - always considering load capacity, system reliability and availability
  • Encourage appropriate use of reusability techniques (e.g. design patterns, library extraction, new component creation)
  • Representing solutions at architectural forums
  • Assess the success of any changes made


  • Enabling monitoring, alerting, tracking and logging within software you create
  • Effective in the role of a Site Reliability Engineer, able to quickly and confidently respond to incidents, and proactive / planned work to prevent customer issues from occurring in the first place
  • Be able to debug frontend applications regardless of the channel (desktop, mobile, native)
  • Coach your team on best practices for incident management - you'll be the go-to person for this in area
  • Seek out any potential problems to avoid incidents
  • Make sure that recurrence of incidents is minimised by applying appropriate immediate actions as well as long-term solutions
  • Be able to explain the problem in a way that production operators, incident managers and stakeholders can understand

Technical competencies:

  • Strong JavaScript knowledge
  • Exposure to or keen interest to work with TypeScript
  • Commercial experience in creating Single Page Applications, knowledge of adaptive and responsive web design principles
  • Strong experience in common JS Libraries & Frameworks – especially React JS AND/OR React Native
  • Git for version control. Able to resolve merge conflicts on your own and aware of git flow for branching / merging
  • Thorough understanding of NPM and package management
  • Advanced CSS and complimentary extensions like SASS, LESS, TypeStyle, and FlexBox
  • A strong focus on unit testing, integration testing and automation


  • NodeJS
  • Exposure to AWS technologies
  • Familiarity with CI/CD methodologies and tools such as Jenkins
  • React with Redux integration, Jest for mocking / unit testing
  • Native iOS app development, including Objective-C AND/OR Swift
  • Selenium WebDriver testing, iOS
  • Experience in Microservice architecture
  • Experience building, testing, supporting and enhancing RESTful APIs using Node.js and Java Spring Boot, and delivering them continuously with CI/CD pipelines.
  • Experience with Docker and managing a container based micro-service architecture.
  • Experience with graph-based APIs, particularly GraphQL, and operating them at scale
  • Experience with Akamai



  • Hungry for product outcomes, able to operate in the grey
  • Creative, Lateral and Lean thinker
  • Prior experience working in an Agile environment, have a breadth of knowledge around Agile ceremonies (iteration planning, retros, backlog grooming)
  • Contributing to the team's success by providing reasonable estimates and continuous feedback to team mates about requirements and blockers
  • High attention to detail and risk positive
  • Commercial awareness & able to leverage technical competence
  • Passionate & curious about technology
  • Collaborative, team player, product-oriented & influential
  • Effective formal & informal communicator
  • Willing to adapt, mentor & share knowledge within & across functional practices
  • Autonomous in learning, leveraging, adapting & extending technology
  • Proven ability to work with ambiguity (e.g can facilitate change with limited certainty and move toward a desired outcome)
  • Proven ability to pivot and change, bias for using data and insights to help drive decision making
  • Lifelong learner – and can learn on the fly proactively
  • Passion for putting the customer (external or internal) at the heart of every decision
  • 4+ years of software analysis, design, development and delivery
What you can expect:
  • 25 days of annual leave
  • Sharesave scheme
  • „Flexible Benefits” of your choice
  • Private health insurance (includes dental insurance and health assessments)
  • Free parking
  • Thousands of courses online through ‘Udemy'


Ways of working:

Flexible working is our way of working! We're a diverse workforce and therefore a 'one size fits all' approach isn't necessarily best. Whatever your personal needs may be, let's have a chat and see how we can accommodate them;

We thank all applicants for their interest, however only the suitable candidates will be contacted for an interview.

By submitting your application online, you agree that: your details will be used to progress your application for employment. If your application is successful, your details will be used to administer your personnel record.If your application is unsuccessful, we will retain your details for a period no longer than two years, in order to consider you for prospective Paddy Power Betfair role.

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Cluj - Napoca
Blvd. 21 Decembrie 1989, no. 77, The Office building, Betfair Romania Development, Entrance A, 4th Floor, Cluj, Romania, 400124


We are the largest technology and shared services hub of Flutter Entertainment Plc, an FTSE 100 company, with over 1,000 people powering the world’s leading brands in sports betting, gaming and entertainment.

Over 18 million customers worldwide enjoy the exciting, immersive and safe experiences delivered by our teams in Cluj-Napoca operating a unique portfolio of diverse proprietary brands such as Betfair, PokerStars, Paddy Power, FanDuel or SportsBet.


We’re home to the talented and the brave. If you’re tired of business as usual and want to create something new, you’ll love it here.

Just like our brands are leaders at global scale, that is the standard we hold up to when it comes to the opportunities we offer to our people, ensuring they have everything they need to succeed.

At Betfair Romania Development, one thing is for sure: you will experience different. Quick-thinking, adaptable and disruptive, we believe the future is what you make it.