Software Engineer III, Frontend - Account Experience

Genius Sports

By bringing together next-gen technology and the finest live data available, Genius Sports is enabling a new era of sports for fans worldwide, delivering experiences that are more immersive, interactive and personalized than ever before. Learn more at geniussports.com.   The Role  You will join one of our established high-performing teams within the Betting division, as we invest in our core and future Betting products. You will be focusing on the delivery of technical and product-focused initiatives, to expand and scale up our industry's leading Sportsbook and Risk Management products.  One example is our Advanced Risk team, who were set up to challenge conventional wisdom about risk management for sports betting operators. Using new measures of liability that take account of correlations between different markets on an event, and by monitoring betting patterns from the moment an event is opened for betting, we apply margins asymmetrically in a way that helps operators to make higher profit margins, reduce volatility and improve customer experience with greater uptime and fewer rejected bets. Our software provides customers with a new level of flexibility over the way they manage their Sportsbooks to meet their financial objectives. Smart algorithms allow decisions about bets to be taken quickly at scale while enabling close control when desired, reminiscent of earlier days of sports betting.  How will you work?  Join a specially formed, highly skilled team delivering an innovative & intelligent product! Forming part of a multi-disciplinary Agile team of Software Engineers, DevOps Engineers, Data Scientists, QA Engineer and a Product Owner, you will look to work closely to the fundamental principles of continuous delivery and empowered, high-performing teams.    We operate in a squad model to allow focus on the business top priorities, allowing exposure across multiple products while still maintaining strong ownership of your team’s domain.  If you are looking to tackle hard problems with smart solutions, collaborate with astute engineers and deliver high calibre code with an autonomous & performance focused approach that supports success, delivery & quality, then this is for you.    As a Software Engineer III, you and your team will build highly distributed, real-time, dynamically scaling systems using modern CI/CD pipelines & cloud infrastructure. You will be responsible for innovating, architecting, delivering & maintaining an industry-revolutionising product.   We will lean on your technical expertise and your pragmatic approach to problem solving; working in a team that prioritises the principles of Agile delivery and continuous improvement. You will have a Data-driven, evidence-based mentality, comfortable with the principles of continuous experimentation and validation.   What skills do you have?  * You will have expert level knowledge of at least one object-oriented programming language (C#, Java, JS, Kotlin, Python, PHP, Golang, C++)   * Flexibility to work on all areas of the service stack, front-end, back-end, infrastructure etc.  * You will have an understanding of the principles of good software design. Familiarity with core concepts such as information hiding, abstraction, module design, cohesion and coupling.    * You will have knowledge of testing methodology (TDD) and designing high-quality testing suites resilient to changes in implementation.     * Understanding of Data Structures, Databases and Caching Technologies  * You bring clarity to complex domains, rapidly developing a deep understanding and challenging unclear requirements. You lead conversations that drive alignment and uncover edge cases others might miss.     It is advantageous for you to have knowledge of the following:   * You will have expert knowledge of C#   * You will have broader software architecture knowledge of architectural patterns and apply them to highly-scalable, fault-tolerant, observable microservices and systems.   * You will have knowledge of source control, continuous integration, pipeline design, containerised workloads and infrastructure as code.    * Operation of Kubernetes Clusters   * Building cloud native applications (AWS)  * Messaging and asynchronous communication technologies (RabbitMQ, Pulsar)   * Front-end web technologies  (React, shadcn)   * Domain Driven Design   * Mathematical Aptitude, particularly statistics   * Data Engineering skills  * Experience in building production grade software with Agentic AI  What we expect from our co-workers   * Curiosity and strong desire to learn and improve.   * Social skills, being able to act as a facilitator, can balance enabling others with individual contributions.  * Time management and asynchronous communication skills relevant for a remote-first engineering organization.  * Enthusiasm and ability to work collaboratively within a team.  * Excellent spoken and written English.  * Adherence to our core engineering principles of Aligned Autonomy, Psychological Safety and Continuous Improvement.  The monthly salary for this full-time role ranges from €4,800 to €6,000 gross. This role will also be eligible to take part in Genius Sports Group's benefits plan. We enjoy an ‘office-first’ culture and maximize opportunities to collaborate, connect and learn together. Our hybrid working models differ depending on your role and location. Occasional travel may be required.  As well as a competitive salary and range of benefits, we’re committed to supporting employee wellbeing and helping you grow your skills, experience and career. Learn more about how rewarding life at Genius can be at Reward | Genius Sports. One team, being brave, driving change   We strive to create an inclusive working environment, where everyone feels a sense of belonging and the ability to make a difference. Learn more about our values and culture at Culture | Genius Sports.   Let us know when you apply if you need any assistance during the recruiting process due to a disability.

GoCardless

About us GoCardless is a global bank payment company. Over 100,000 businesses, from start-ups to household names, use GoCardless to collect and send payments through direct debit, real-time payments and open banking.  GoCardless processes US$130bn+ of payments annually, across 30+ countries; helping customers collect and send both recurring and one-off payments, without the chasing, stress or expensive fees. We use AI-powered solutions to improve payment success and reduce fraud. And, with open banking connectivity to over 2,500 banks, we help our customers make faster, more informed decisions. We are headquartered in the UK with offices in London and Leeds, and additional locations in Australia, France, Ireland, Latvia, Portugal and the United States. At GoCardless, we're all about supporting you! We’re committed to making our hiring process inclusive and accessible. If you need extra support or adjustments, reach out to your Talent Partner — we’re here to help!  And remember: we don’t expect you to meet every single requirement. If you’re excited by this role, we encourage you to apply! THE ROLE Our mission as the Payment Intelligence team is to augment our bank payments product with intelligent data products that differentiate our offering and increase our win rates. Our focus areas are our existing products, Success+ and Protect+. This means creating market-leading payment recovery rates and fraud prevention products. Projects in the pipeline that align to these focus areas are: * Improve payment recovery rates for failed Account to Account payments. * Enhance the value proposition of our Payment Intelligence products for our merchants. * Lead growth initiatives to increase the adoption of Success+ and Protect+ As an engineer, you will be actively working on projects that help grow the adoption of these products while improving the experience of using the same and coming up with ideas for new product features in this space. You will be aided and supported in this journey by a cross functional team of super talented and motivated engineers and data scientists This is a unique and high-profile opportunity for you, as an engineer, to work on building one one of GoCardless' major revenue streams in the coming years. WHAT EXCITES YOU  * You have a growth mindset, motivated by driving concrete business outcomes. * You enjoy building state of the art user experiences for our customers * You thrive in a collaborative environment and believe the best products are built through collaboration. * You are passionate about building and improving products by experimenting, prototyping and applying an iterative approach to validate ideas and learn. WHAT EXCITES US   * You want to solve problems that will drive revenue growth and will have an impact on the engineering technical vision. * You effectively collaborate with other engineering teams and business stakeholders. * You have a product ownership mindset and can work with other functions in the team to come up with ideas for product features. * You have hands on experience with large front end codebases and have worked on front end infrastructure at scale. Base salary range: £80,000 - £120,000 Base salary ranges are based on role, job level, location, and market data. Please note that whilst we strive to offer competitive compensation, our approach is to pay between the minimum and the mid-point of the pay range until performance can be assessed in role. Offers will take into account level of experience, interview assessment, budgets and parity between you and fellow employees at GoCardless doing similar work. (SOME OF) THE GOOD STUFF * Wellbeing - stay healthy with dedicated support and medical cover * Work away scheme - gives you the option to work away from your country of residence for up to 90 days in any 12 month period * Adaptive Working - allows you to work flexibly, around your lifestyle * Equity - all permanently employed GCs get equity to help you make a valuable contribution * Parental leave - to suit everyone embarking on life's great adventure * Learning Budget - lead your own development with an annual learning budget * Time off - generous holiday allowance, + 3 annual volunteer days, + 4 annual business-wide wellness days (‘GC Fridays’) LIFE AT GOCARDLESS   We're an organisation defined by our values; We start with why before we begin any project, to ensure it’s aligned with our mission. We act with integrity, always. We care deeply about what we do and we know it's essential that we be humble whilst we do it. Working this way creates the GC magic- the reason we all love showing up to work.  DIVERSITY & INCLUSION As of April 2025, we had 806 employees (GeeCees) globally, with 524 based in the UK, 163 based in Latvia and 119 across our other offices. To ensure that we're representative of the world around us - and to be able to review relevant benchmarks - we ask GeeCees to voluntarily disclose diversity data. This year, the proportion of GeeCees providing data increased to 88% (up from 79% in 2024). With regards to diversity within GoCardless, we can see GeeCees identifying as: Asian, Black, Mixed or Other — 25%  Neurodiverse — 9%  LGBTQIA+ — 9%  Disabled — 1%  Average age — 33 Female — 45% Male —  55%  We’re rooting for you during your application and GoCardless aims to provide reasonable adjustments to make our recruitment process as remarkable and accessible as we can. Please speak to your Talent Partner if you need extra support. If you want to learn more, you can read about our Employee Resource Groups and objectives here Sustainability We’re committed to reducing our impact on the environment, leaving a more sustainable world for future generations. Check out our sustainability action plan here. Find out more about Life at GoCardless via Twitter, Instagram and LinkedIn.

Satispay

Frontend Software Engineer III About us Satispay began by rethinking the simple act of a payment to remove the friction from our daily routines. But we didn’t stop there. Today, we are building a complete financial platform designed to empower people and concretely improve their lives. By giving our 6 million users a clear, open path to pay, save, and invest, we are evolving into the definitive destination for every financial need. What you’ll be doing As a Frontend Software Engineer, you’ll play a key role in contributing to the development of a next-generation, highly scalable, and performant core frontend platform. Here’s what your day-to-day will look like: * Collaborate on feature development – Working closely with the team to implement new features, participating in code reviews, and contributing to knowledge-sharing sessions. * Enforce coding standards – Ensuring adherence to design patterns and best practices for frontend development. * Contribute to the technical vision – Supporting the foundations for a scalable, maintainable, and high-performance UI platform. * Evaluate and select technologies – Researching and choosing modern frontend technologies, frameworks, and tools. * Design scalable systems – Creating systems that support scalability and modularity to handle evolving business requirements. Our frontend stack is built around TypeScript and React, with state management handled via TanStack Query, Zustand, and Jotai. We use Tailwind CSS and headless libraries like Radix UI or Base UI to power a modular, accessible design system shared across teams. Validation and functional programming are supported through Zod, fp-ts, and effect. We also use GraphQL, Next.js and TanStack Start in selected projects, utilizing PostgreSQL for data persistence alongside AWS services like Lambda, S3, SNS, and SQS for serverless and asynchronous architectures. Our testing strategy includes Vitest, React Testing Library, and Playwright for E2E testing. Everything runs on AWS, with CI/CD pipelines managed via CodeBuild, CodePipeline, and GitHub Actions. Monitoring and observability are handled with Sentry and Kibana. Expect challenges, collaboration, and the freedom to bring your ideas to life. Things change quickly here, so be ready to adapt, take initiative, and shape your role as we grow. Who we’re looking for We need a problem-solver who loves teamwork and gets things done. If you're curious and ready for real ownership, you'll fit in! Does this sound like you? * Relevant experience – 3-5 years in front-end development, with a track record of delivering high-quality web applications. * Expertise in JavaScript frameworks – Proficient in JavaScript, TypeScript, React, and state management libraries like Tanstack Query * Experience with design systems – Skilled in using component libraries (e.g., Storybook, Headless UI, Tailwind CSS) and collaborating on UI/UX discussions * Strong understanding of build systems and APIs – Experienced with modern front-end build systems (Vite, Rollup, Nx/Turborepo) and deep knowledge of RESTful APIs, GraphQL, and WebSockets * Strong ownership of features – Experience maintaining Node.js applications in production, including using observability/logging tools (e.g., Grafana, Cloudwatch, Logstash) and maintaining unit, integration, and E2E tests. * Performance Optimization – Implementing techniques like lazy loading, code splitting, and caching to ensure optimal application performance. Don't worry if you don't tick every box. We believe in the power of different viewpoints and strengths. Your unique perspective is important as we build something special. If you're passionate and can make a difference, we truly encourage you to apply. CareAbout: how we support your impact We move fast, and evolution never stops. It’s a fun ride, but it can be challenging. To make sure our people truly thrive, we’re committed to making their lives easier, both in the office and out in the world. That’s why we created CareAbout: * ❤️ Health (Private insurance for you and your family, psychological support with Serenis, mental health workshops) * 💰 Financial resources (Stock Option Plan, Meal vouchers, Relocation support if you’re moving countries) * ⚙️ Growth and development (Professional development programs, Internal mobility, Language courses with Preply) * 🌱 Flexibility (Unlimited PTO, Hybrid working policy*, Flexible working hours) * 👨‍👩‍👧 Family (Enhanced parental leave, Additional leave for child sickness) *We embrace three days per week in-office (Tuesday and Thursday + 1 of your choice), with the option to request extra remote time. Salary: €45,000 - €53,000 gross per annum This range is set using objective, gender-neutral criteria for the role's core requirements. However, we do not believe in putting a ceiling on talent. The final compensation package is tailored according to your unique experience and expertise. If your skills go beyond the standard profile, apply anyway so we can discuss a package that reflects your true value. Equal opportunity employer At Satispay, we're proud to be an equal opportunity employer. We celebrate diversity and inclusion, welcoming individuals of all backgrounds. This opportunity is open to everyone, regardless - for instance - of race, colour, religion, sex, gender identity, sexual orientation, and national origin. Join us in a workplace where everyone belongs! Learn more about us Our values and pillars aren’t just fancy words on a page - they really shape everything we do. Explore them here. #LI-VR1 #LI-Hybrid By submitting this application, I acknowledge that I have read and understood the content of the Privacy Policy