Senior Full-Stack Engineer

At Arkadium our purpose is to have fun while creating fun - and that’s exactly what we’ve been doing for 20 years. We’re the creators behind the world’s most-played games. From the Solitaire that came on your Windows machine, to hundreds of other games you’ve come to know and love - you can find our games on Arkadium.com, iOS, Android, and lots of other big sites worldwide. As a proud Evergreen business our values of Fierce Drive, Positive Energy and Living Full Lives are the driving force behind how we run and the choices we make. We’re privately held (aka stable and reasonable about growth), founder-led (aka passionate about our craft) and we consistently rank as a “Best Place to Work” (aka not your typical games company). We’ve been recognised by "Happiness Works 2023, 2024, 2025" in Portugal, "Crain's Best Places to Work 2022" and "Great Place to Work 2022 and 2023" in New York! Interested in becoming an Arkadian? We’d love to hear from you! Overview Arkadium is seeking an exceptional and experienced Senior Full-Stack Engineer to join our Web Platforms team. Work Location & Hybrid Model (Portugal) In Portugal, we operate under a hybrid work model that blends remote and in-office work. Employees may work from home or from the office depending on team and individual needs, ensuring both flexibility and strong collaboration. If you reside in the Lisbon metropolitan area: you will be expected to work onsite one to three times per week, with specific days agreed upon with your manager. If you are based outside of Lisbon: a different onsite cadence will apply. For candidates not residing in Portugal, you will be onboarded as a full-time contractor through our international payroll provider. Responsibilities Contribute to the development of scalable and high-performance applications and systems. Build comprehensive and robust full-stack solutions aligned with business and technical requirements. Design, develop, and maintain both server-side and client-side applications for live games. Support internal game teams by creating tools that help them scale and accelerate development. Design database schemas that ensure data consistency, integrity, and security. Implement and enforce security best practices for data protection and user authentication. Participate in code reviews to ensure high code quality and adherence to best practices. Create and maintain clear documentation and technical specifications to support knowledge transfer. Work within agile processes and contribute actively to team goals and planning. Bachelor’s degree in Computer Science, Engineering, or a related field. 5+ years of experience as a full-stack engineer. 3+ years working with server-side runtime environments (e.g. Node.js). Strong hands-on experience with React, Next.js, JavaScript, and TypeScript. Experience building and consuming RESTful APIs. Solid understanding of backend architectures and patterns for scalable distributed systems. Ability to own features end-to-end and work independently when needed. Strong problem-solving and critical-thinking skills. Strong verbal and written communication skills. Experience working in an agile development environment. A strong focus on code quality, maintainability, and reliability. Nice to Have Experience with containerization (Docker) or orchestration (Kubernetes). Familiarity with cloud services (Azure or AWS). Experience building or maintaining online games or high-traffic applications. Knowledge of CI/CD pipelines and modern DevOps practices. Experience working with databases (SQL or NoSQL).

We offer:

Competitive compensation with structured performance and career development check-ins Health insurance Additional budget for conferences you are interested in Personal development budget to fuel your passions and desire to learn (Arkadians are taking classes in not only Excel and leadership, but also interior design and even swimming!) Time off from Christmas Eve through New Year's Day so we can all enjoy the holidays A unique culture of transparency, true teamwork and fun

• Summer Fridays: Fridays off throughout the Summer to have more fun in the sun!
• The above benefits may vary depending on location or country.
• Please note we do not provide visa sponsorship or relocation support for this role.