Java fullstack engineer

Hungry for a challenge? Our mission? To empower every food moment around the world, whether it is through customer service, coding, or couriers.

The Opportunity:

We are looking for a proactive software engineer with a strong backend foundation and full-stack capabilities to join our Identity & Access Management (AuthN/AuthZ) team. As a Full-Stack Engineer, you will bring solid experience in security architectures, identity systems, and distributed microservices to the table. In this role, you will be instrumental in building high-throughput authorization services, extending enterprise authentication workflows, maintaining developer SDKs, and delivering intuitive frontend interfaces for our global ecosystem.

In this role you'll have the responsibility to:

Build & Scale Identity Services: Design, develop, and maintain enterprise Authentication infrastructure built primarily on Java and Keycloak, alongside high-concurrency Authorization microservices in Go and Kotlin.

Deliver End-to-End Features (React): Build clean, secure, and responsive frontend applications and admin dashboards using React to support seamlessly integrated user and partner identity journeys.

Support Polyglot Ecosystems & Tooling: Support client-side .NET SDKs and write Python automation scripts to streamline developer onboarding, authorization checks, and ops automation across JET teams.

Drive Cloud Infrastructure & Reliability: Package, deploy, and scale microservices using Docker, Kubernetes (k8s), and AWS, ensuring high availability, fault tolerance, and tight security controls.

Elevate Technical Standards: Implement modern security patterns (OAuth2, OIDC, RBAC/ABAC), adhere to observability standards, and actively participate in collaborative architectural reviews and team knowledge sharing.

What Will You Bring to the Table?

Solid Java Backend Experience: Commercial experience in backend engineering, with a strong primary focus on Java, and comfort working in a polyglot environment (Go, Kotlin).

Domain Knowledge in AuthN & AuthZ: Hands-on experience with identity protocols (OAuth 2.0, OpenID Connect, SAML) and custom/open-source identity providers such as Keycloak.

Frontend Capabilities: Nice to have hands-on proficiency or willing to work with React (JavaScript/TypeScript) to deliver modern, end-to-end full-stack solutions.

Cloud & Container Experience: Experience operating services in production with Kubernetes (k8s), Docker, and AWS cloud services.

SDK & Scripting Versatility: Familiarity or comfort working with .NET (for internal client SDK maintenance) and Python (for automation and tooling).

AI-Assisted Development & SRE Mindset: Comfortable leveraging AI coding assistants to accelerate development, paired with an operational mindset focused on monitoring and reliability.

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