Happening

About the Company

Happening is the technology engine powering Superbet Group's global platforms and brands that bring thrill to customers across the world every day.

We are a game-changing tech company rewriting the rules of sports betting and gaming. We are shaking up the status quo by building our own end-to-end tech stack, solving deep and complex challenges for millions of customers and shaping our culture to work uniquely for the tech community.

A true challenger, our technology handles serious scale on par with the Big Techs, and customer obsession runs through every team. Building our own platform gives us freedom to innovate and flip the legacy perceptions and industry stereotypes.

Listed Jobs

Company Name

Happening

Job Title

Senior Full-Stack Engineer

Job Description

We are looking for a Senior Full Stack Engineer to join our growing team in the Model engineering tribe at Happening! Within the Sports organization, the Model tribe develops platforms and tooling that support our in-house models—these power the prices for our sports betting content. We collaborate closely with our Quant team, who develop the pricing models. Our clear mission is to deliver the best betting experience for both current customers and future ones as we expand globally. Since our prices drive most of our sports betting revenue and profit, we need an experienced engineer who can navigate this complex domain and design comprehensive solutions for our modeling platform.

What you’ll be doing:
Owning the entire product lifecycle, from proposal to release and maintenance
Building new tooling for interacting with out in house sports models
Leveraging modern technologies like TypeScript, React, Go, Vite, PNPM, AWS, Kubernetes, and more
Mentoring teammates to ensure timely, high-quality task completion
Driving initiatives to enhance the development experience for all engineers
Improving build processes and tooling to boost team productivity
Using top-tier tools like Notion, Jira Cloud, GitHub, Zoom, and Slack

What we’re looking for:
Proficiency in TypeScript and experience with React
Solid understanding of backend development, including architecture and design principles
Ability to navigate complex domains and translate business requirements into technical solutions
Strong mentoring skills to support teammates in managing priorities, time, and dependencies effectively
Proven track record of building relationships with users and stakeholders to drive software quality
Hands-on experience with design systems such as Ant Design, Material Design, or Bootstrap
Experience creating and maintaining tools that enhance the developer experience (DX)
Deep knowledge of best practices, design patterns, and software development principles
Strong grasp of performance optimization techniques
A collaborative mindset and enthusiasm for working in a team-oriented environment

Bonus points for:
Sports betting industry experience and/or knowledge
Building microservice based systems in Golang
Building apps with high-frequency, low-latency data changes

London, United Kingdom

On site

14-02-2025

Company Name

Happening

Job Title

Senior Frontend Engineer

Job Description

We're looking for a Senior Frontend Engineer who would join our team of skilled developers, dedicated to crafting intuitive client frontends and backoffice tools, creating seamless promotions and campaigns for gaming and sports betting, and turning complex challenges into simple, effective solutions.

What you’ll be doing:
Taking ownership of the software development lifecycle (SDLC): from initial proposals and planning, through implementation, release, and ongoing maintenance
Working with cutting-edge technologies on both the web and infrastructure sides, such as TypeScript, React, and AWS
Improving frontend development efficiency by maintaining and enhancing build processes and tooling
Contributing to the Frontend Community by sharing knowledge, learning from peers, and helping grow our team of frontend experts

What we’re looking for:
A minimum of 5 years of experience with a solid understanding of JavaScript
Expertise in React or Vue.js, including familiarity with modern concepts such as hooks, Suspense, the composition API, or composables
Strong knowledge of modular software architecture, including microservices and microfrontends
Experience with design systems, especially Ant Design, or similar libraries like Material Design, Bootstrap, Semantic UI, Blueprint, Fluent UI, Chakra UI, and others
A keen eye for detail and a commitment to delivering high-quality products
Understanding and application of software development best practices, patterns, and principles
A collaborative mindset - we believe we’re always stronger together

Bonus points for:
Prior experience in the betting or gaming industry
Demonstrated ability to navigate complex domains and meet challenging business requirements
A history of building positive, collaborative relationships with users and managers to improve software quality

London, United Kingdom

Hybrid

27-02-2025

Company Name

Happening

Job Title

Senior Backend Engineer

Job Description

We are one of the largest sports betting operators in the region making 1000+ location networks work across multiple geographies. If you ever wanted to see how software can handle 22 million bets per month - why not join us?

We have offices based in London and Leeds, offering full flexibility with occasional meet-ups with your teams and leads in the office!

We're are looking for someone who has:

A minimum of Bachelor’s Degree in Computer Science or a related discipline
Has experience engineering high-quality software in any object-oriented or Functional language
A willingness to learn new technologies
A talent for clean coding, simple solutions, automated testing and continuous deployment
A passion for working in the cloud and automation

Bonus points for:

Experience in AWS (Cloudformation, MSK, S3, Cognito etc..)
An interest in Functional Programming
Knowledge of Kafka
Front end development experience in React

What you'll be doing:

Building new and supporting existing Erlang based microservices that enable product features
Enhancing the existing platform to increase the amount of business functionality driven by end user configuration
Enhancing system automation (scale, resiliency, deployment)
Maintaining and enhancing common platform components and libraries (AWS, Erlang)
Working with technical and non-technical stakeholders from the wider organisation to understand and drive requirements and improvements
Building on our CloudNative platform, enabling more use of AWS technology to aid in speeding up delivery, scale and resiliency
Growing the engineering community, building on the existing process and practices

London, United Kingdom

Hybrid

11-03-2025