Senior Front-end Software Engineer (React) | Betty UK

Описание на позицията

What You Would Do
Create captivating player experiences by bringing together game logic, sound, and animation into seamless, high-quality productions. You’ll shape game logic using TypeScript and our proprietary SDK, built for high performance and lightweight browser delivery, powered by the latest version of the Pixi rendering engine.We take pride in writing code that is reliable, efficient, and easy to maintain.

Beyond game development, we actively invest in building in-house tools that enhance productivity and improve quality of life across the team.

About The Team
The Game Development Teams are the core entities of our company. These small units of Frontend Developers and Animators put together the pieces that create our engaging experiences. We write code that's reliable, fast, and easy to maintain and we love tackling various technological and creative challenges. Engineers by vocation, we love applying the latest technologies and creating things together.

Must haves
Experience with JavaScript and TypeScript

Experience with HTML5 Canvas (vanilla or through libraries like PixiJS, Phaser, Cocos2D, p5, CreateJS)

Good understanding of Git (duh!)

Curiosity to explore modern intelligent tools and apply them thoughtfully in your workflow

A mindset geared toward automation - always looking for smarter ways to eliminate repetitive, low-value tasks

Openness to grow, experiment with new technologies

Desire to write clean code and adhere to our company’s standards

Understanding of techniques for performance optimization and debugging

Problem-solving ability and strong motivation

Bonus Skills
Enjoy playing games

Experience with bundling tools (vite, webpack)

Familiarity with a development engine like Unity or Unreal

“Who are you guys anyway?”
We're a rapidly evolving software company that, in just two years, emerged from the ground up to form a team of over 120 people. Our guys are remarkably skilled, each excelling in different areas like programming, mathematics, animation, drawing, and audio effects creation. We love to explore beyond specific services or products; rather, we specialize in crafting a wide array of innovative solutions from idea to development. From web and desktop applications, open-source initiatives, and websites to animations, trailers, music, sound effects, and more – our portfolio spans the spectrum.
The 3-day rule
We are doing our best to carefully review the work of each and everyone who applies for our open positions, but we do receive a considerable number of applications. If we don’t get back to you within 3 work days (from the moment you apply), please consider your application not accepted this time. Don’t let this discourage you from applying in the future, though.

We are Pateplay, a software company operating in the global iGaming market, developing innovative games and platforms that combine cutting-edge technology with a spark of creativity.

Our products reach every continent and are available in over 55 international markets, establishing us as a trusted and reliable partner in the industry.

Based in Sofia and growing fast, we’re a B2B SaaS team made up of developers, artists, QA engineers, product thinkers, and operations pros — all working together to create fun, impactful games and smart tools for our partners.

If you love diving into meaningful challenges, enjoy shaping products used by real players, and get energized by trying new things — you’ll feel right at home with us. If you know your craft, stay curious, and like to aim high — we’ll get along great.

About the position
:

We’re looking for a
Slot Game Developer
with strong TypeScript skills and a passion for building high-performance games using technologies like
React
,
GSAP
, and
PixiJS
(or similar). You’ll be working end-to-end on game projects, collaborating with developers, mathematicians, and artists in an agile environment.

Responsibilities
:

• Develop complete slot game projects from concept to release
• Use
  PixiJS
  and other libraries to build interactive game visuals
• Build new features and improve existing ones with
  TypeScript
  ,
  ReactJS
  , and game-related tools
• Fix bugs (we use Jira for tracking)
• Participate in discussions and technical decision-making
• Work closely with
  artists, sound designers, and animators
  to bring game ideas to life
• Help extend and improve our internal game development framework

Requirements
:

• 3+ years of professional experience with
  TypeScript
• Strong understanding of
  object-oriented programming (OOP)
  principles
• Experience with
  asynchronous programming
  in JavaScript (Promises, async/await)
• Experience with
  ReactJS
  and
  Redux
  or similar state management libraries
• Proficient with
  Git
  and version control workflows
• Strong desire to learn, grow, and continuously improve
• Takes initiative and responsibility for your work
• Team player with great communication skills

Advantages
:

• Experience with
  PixiJS
  or other WebGL-based rendering frameworks
• Good foundation in
  math
  and
  algorithms
• Familiarity with JavaScript build tools (e.g., Webpack, Vite)
• Creativity and a passion for games and visual polish

We offer
:

• Additional health insurance.
• Annual paid leave up to 25 days.
• Free Sport card.
• A supportive and close-knit team. Agile and casual culture.
• Opportunity to work in a dynamic, evolving, and profitable industry.

All applications will be treated strictly confidential.

Only short-listed candidates will be contacted.

Thank you for applying!

Location and basis
Nearshore contract, engaged on a B2B basis. Starting as soon as possible.

Fully flexible working: home, office, or a mix, your call. We just ask that you're based within one of these areas:

• Romania: within 50 miles of Bucharest, Cluj or Iasi
• Bulgaria: within 50 miles of Sofia

Applications from outside these areas won't be considered.

The engagement
You'll join a retained engineering team on a high-volume online marketplace, part-way through a major, multi-year technology transformation. There's a live migration to AWS and a full version 2 build underway.

The current client-facing platform runs on PHP and Laravel. The direction of travel is a service-based architecture on AWS, built in TypeScript, JavaScript and Python.

You'll write the new world and help maintain the old one. That means writing TypeScript and Python day to day, while being able to read PHP and make changes to the existing platform where needed.

This is genuinely end-to-end full-stack work: front-end, APIs, data, auth and service architecture. We're after broad depth rather than a single-language specialist.

This is a demanding, fast-paced environment. You'll need to be productive quickly without a long ramp.

The platform
This is a genuinely large-scale marketplace. Very few platforms handle a product catalogue or transaction volume at this level.

The roadmap includes agentic AI workflows built into the platform, retail media integrated directly into the marketplace, and infrastructure work targeting cost and performance at high volume.

A lot of this is being attempted at volumes that have rarely been tested in a marketplace before, so the work leans research-led rather than routine.

Who This Suits
This is a fast-paced scale-up environment on a complex platform.

You'll do well here if you're comfortable with ambiguity and shifting ground, and confident enough to advocate for the technical decisions you make.

What We Need
The essentials:

• Senior to principal full-stack experience, genuinely end-to-end across front-end, APIs and data
• Strong hands-on AWS, with infrastructure as code (Terraform or CDK)
• You write TypeScript, JavaScript and Python, and can read PHP (Laravel) and make changes to it
• You can advocate for technical decisions and communicate them clearly
• Comfortable delivering at pace in a complex, high-volume environment
• Comfortable working in English, written and spoken

Nice To Have

• Retail or e-commerce background
• Experience building service-based platforms in AWS
• Worked at or closely with a major cloud provider such as AWS
• GenAI or agentic workflows in your engineering practice

Ready to apply?
Submit your application below.

Your future job

At Melexis, we're searching for a
Digital Design Engineer
who doesn't just design circuits but becomes their complete owner from the initial idea to the mass production. As a Digital Design Engineer, you'll play a pivotal role in crafting the digital core of our smart integrated circuits. Here's your chance to step up, take true ownership of every aspect of your designs, and bring them to life in an environment with a true team spirit and exciting challenges.

More specifically, you will:

• Dive into the development of our innovative digital platform:
  Push the boundaries of what's possible in the semiconductor industry by performing advanced Verilog/SystemVerilog RTL coding for smart automotive sensors and SoC solutions.
• Collaborate with Expert teams:
  Join forces with our System and component Architects to seamlessly blend Analog blocks, Digital logic, and Embedded Software, unlocking new dimensions of performance.
• Architect for Excellence:
  Contribute your expanding expertise to the architectural blueprint based on the product specification. You will leverage your architectural knowledge of microcontrollers, bus systems, complex DFT, and key peripherals to optimize for efficiency, safety, low power, and testability.
• Implement Advanced Safety & Interfaces:
  Design and integrate critical serial interfaces and implement robust hardware safety mechanisms focused on ISO26262 error detection & correction
• Deliver Impeccable Validation & Verification:
  Harness your growing prowess in the SystemVerilog version to collaborate closely with verification teams. Explore advanced strategies like scenario building, fault injection to test safety mechanisms, and formal proof to guarantee automotive-grade quality and precision.
• Document, Script, and Support:
  Utilize scripting languages like Python and TCL to automate front-end implementation tasks and environment setups. Share your knowledge by providing valuable documentation and cross-functional support to our analog, verification, test, and quality teams.

Your profile

• Engineering Master's Degree or PhD:
  You bring the educational firepower required, with a strong academic foundation in microelectronics, electrical engineering, or computer engineering.
• Relevant experience in IC/FPGA Design
  and a strong, proactive willingness to rapidly strengthen your digital design expertise.
• Design Concepts and Simulations:
  You have a solid, hands-on grasp of digital design principles such as RTL coding, and simulation flows.
• Effective Communicator:
  You can clearly articulate technical ideas, design trade-offs, and debug anomalies.
• Team Player:
  You thrive in a cross-country, multicultural, team-oriented environment, leveraging your analytical skills to drive collective innovation.
• Tech Enthusiast:
  You actively seek to stay updated with the latest trends and technologies in digital design. At Melexis, your passion is supported—you will have opportunities to contribute to technical exhibitions, IEEE articles, and patents.
• Fluency in English
  (both written and spoken).

We offer

• Full Exposure:
  You won't be restricted to minor, repetitive maintenance. In our Digital Competence Center, you get exposure to the complete design lifecycle.
• A Runway to Seniority:
  We match your high potential with a structured technical career path, giving you the tools, modern EDA methodologies, and direct mentorship to transition smoothly into career progression of the engineering roles.
• Pure Engineering Culture:
  We combine the global market reach of a semiconductor leader with a friendly, flat, and supportive local team environment where your ideas actually matter.

Diversity & Inclusion

Melexis is an Equal Opportunity Employer that values and respects the importance of a diverse and inclusive workforce. It is the policy of the company to recruit, hire, train and promote persons in all job titles without regard to race, colour, religion, sex, age, national origin, veteran status, disability, sexual orientation, or gender identity. We recognize that diversity and inclusion is a driving force in the success of our company.

About Melexis

Inspired by a passion for technology and engineering, Melexis designs, develops and delivers innovative micro-electronic solutions. They enable designers to turn ideas into applications that support the best imaginable future. The company’s advanced mixed-signal semiconductor sensors and actuators integrate sensing, driving and communication into next-generation products and systems. They improve safety, raise efficiency, support sustainability and enhance comfort.

Melexis is a world leader in automotive sensors. Today, on average, every new car produced worldwide contains 18 Melexis chips. Melexis uses this expertise to serve other markets as well: alternative mobility, smart appliances, smart buildings, robotics, energy management and digital health.

Melexis is headquartered in Belgium and employs over 2000 people in 18 locations worldwide. The company is publicly traded on Euronext Brussels (MELE).