Principal Engineer (Frontend)

1 Month ago • All levels • Frontend Development

Job Summary

Job Description

Kaizen Gaming, powering Betano, is a leading GameTech company operating in 19 markets, aiming to leverage cutting-edge technology for millions of customers. As a Frontend Principal Software Engineer, you will develop modern applications using state-of-the-art technologies like Vue.js 3, Typescript, VueX, Pinia, Tailwind, Webpack, Vite, and Storybook. Your responsibilities will include executing the technical roadmap, focusing on code modularity, reusability, testability, performance tuning, and monitoring. You will provide technical guidance to development teams, enforce best practices, participate in technical analysis, and collaborate with UI/UX designers to deliver optimal customer experiences. You will also be expected to write code, understand key frontend performance metrics, mentor individuals, support scalable solutions, and act as the primary liaison between Architecture Engineering and Development teams.
Must have:
  • Write code and lead by example.
  • Understand frontend performance metrics.
  • Exert technical influence and mentor teams.
  • Support scalable solutions.
  • Provide hands-on solutions and POCs.
  • Participate in technical discussions and challenge architecture.
  • Liaise between Architecture and Development teams.
Good to have:
  • Knowledge of modern frontend library data/state connection.
  • Knowledge of frontend integration schemes (iframes, micro-frontends).
  • Experience with server-side rendering.
  • Solid experience with bundling tools (Webpack, Vite).
  • Solid experience with state management (Redux, VueX, Pinia).
  • Excellent understanding of SPA frontend communication with BFF.
  • Excellent knowledge of new browser APIs.
  • Experience with mobile development (React Native, Ionic).

Job Details

We are Kaizen Gaming

Kaizen Gaming, the team powering Betano, is one of the biggest GameTech companies in the world, operating in 19 markets. We always aim to leverage cutting-edge technology, providing the best experience to our millions of customers who trust us for their entertainment.

We are a diverse team of more than 2.700 Kaizeners, from 40+ nationalities spreading across 3 continents. 

Our #oneteam is proud to be among the Best Workplaces in Europe and certified Great Place to Work across our offices. Here, there’ll be no average day for you. Ready to Press Play on Potential?

Let's start with the role

Principals hold a central role in the Technology department. They are expected to help teams devise elegant and performant solutions in response to real business problems, guide them in designing and implementing these solutions in code, as well as teach coding, testing, debugging, and performance analysis techniques, while also carrying out code reviews.

As a Frontend Principal Software Engineer you will develop modern applications for our product by using state-of-the-art technologies. Your focus will be the execution of the technical roadmap, so code modularity, reusability & testability as well as performance tuning and monitoring will be a part of your day-to-day. Equally important, you will also provide technical guidance to the development teams, enforcing best practices and patterns for our features. More specifically, you will participate in technical analysis, and in collaboration with UI/UX designers, you will have the opportunity to offer the best experience to our customers.

Tech Stack

On our frontends, use Vue.js 3,Typescript, VueX, Pinia, Tailwind,Webpack, Vite, Storybook, Jest, Vitest, Openshift, Private npm packages for building our internal shared libraries, Micro frontends architecture

As a Principal Frontend Engineer you will:
  • Write code as we expect our technical leadership to be in the trenches alongside engineers, understand root causes, and lead by example.
  • You understand key frontend performance metrics and have some experience in debugging frameworks such as Lighthouse and ChromeUX.
  • Exert technical influence over multiple teams, actively mentor individuals on advanced technical issues, and help technology managers guide the technical growth of their team members.
  • Support Product and Delivery in building highly scalable solutions aligned with non-functional requirements in terms of performance, security & regulatory.
  • Provide clear hands-on solutions with POCs or actual implementations depending on the particular case and scenario.
  • Participate in technical discussions as part of the team. You should be ready to challenge our architecture, propose changes, and ultimately implement them.
  • Become the first point of contact between the Architecture Engineering Team and Development Teams. Safeguard our engineering processes and the way we deliver software to browsers and mobile devices.

What you will bring

  • Knowledge of how modern frontend libraries connect data and state to the underlying rendering engine be it a browser DOM or a native mobile API.
  • Good knowledge of frontend integration schemes either on the client side or server side (iframes, micro-frontends, edge includes)
  • Experience with server-side rendering in any of the major front-end frameworks is nice to have.
  • Solid experience with bundling tools such as Webpack and Vite.
  • Solid experience with a global store / action-based state management pattern (Redux, VueX, Pinia)
  • Excellent understanding of how SPA frontends can communicate with a BFF and best practices in terms of API design.
  • Excellent knowledge of all newest browser APIs such as service-workers, MutationObserver, ResizeObserver
  • Experience with mobile development either native or through a hybrid model (react-native, ionic, etc) will be considered a plus.

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About The Company

Kaizen Gaming is one of the biggest and fastest growing GameTech companies in the world. With a focus on Technology and People we aim to continually improve our products and services to provide the best and most trusted online gaming experience to our customers around the world. 


We operate two brands in 13 countries: Betano (Portugal, Romania, Germany, Brazil, Bulgaria, Czech Republic, Chile, Peru, Ecuador, Canada-Ontario, Nigeria) and Stoiximan (Greece, Cyprus), and employ more than 2,200 people across three continents. Obsessed with our customers, we use technology and data to constantly push the boundaries of online gaming entertainment. 


Why work with us


💻Tech the Ride | Our Adventure

We have made it our quest to shape and influence the GameTech industry globally. We Kaizeners move fast and make things happen: we imagine, develop and build with no

limitations. Working here means getting the freedom to explore as you help us create the technology that powers entertainment.


😎Pick #oneteam | Our Culture

We each have a role to play in building a company culture we can all trust. We Kaizeners are open, direct and respectful; we support each other to reach our goals as

#oneteam. Working here means facing challenges that inspire the team to be on its A-game to get the job done.


☝ Level up | Our Growth

We know our hard work will take us places. We Kaizeners get plenty of opportunities to supercharge our potential as the company grows, overcoming challenges with the support of our colleagues. Working here means continually finding new boundaries to push and new career horizons to reach.


Press Play on Potential!

Join our #oneteam

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