Summary: Doodle is seeking a Senior Backend Engineer to own the engineering of their B2B SaaS platform, focusing on high-performance services, global scheduling logic, and massive concurrency in an event-driven architecture. Highlights: 1. Own backend engineering, designing and shipping high-performance services 2. Tackle complex global scheduling logic and scale for massive concurrency 3. Champion clean code and CI/CD excellence with real customer impact **Own the Engineering. Make the Scheduling Magic happen.** ---------------------------------------------------------- Doodle is a B2B SaaS platform used by millions of professionals to coordinate meetings and collaboration across teams and companies. We are expanding from a scheduling product into a broader productivity and coordination platform, which creates meaningful technical challenges at scale. We aren’t just looking for someone to "write code." We need a **Systems Builder**. Someone who gets excited by the precision of reactive programming, the complexity of event\-driven architectures, and the unique edge cases that arise when processing time across every global time zone simultaneously. ### **What You’ll Actually Do** * **Own the Backend:** Design and ship high\-performance services in **Go and Java** that serve millions of global users. * **Wrangle "Time":** Tackle the fascinating logic behind global scheduling—where millisecond precision meets complex human variables. * **Scale High:** Optimize our core platforms for massive concurrency and global distribution. * **Lead the Standard:** Champion clean code and CI/CD excellence in an environment that values "doing it right" over "doing it fast." ### **What do you bring?** You’ll thrive here if you are a **Senior** who values customer impact as much as elegant syntax. * **The Foundation:** You have a deep grasp of DS/Algo and distributed systems. * **The Toolkit:** You are a pro in **Go and/or Java** and have experience shipping production\-ready backend services. * **The Mindset:** You think in **Events**. You understand Kafka, reactive systems, and how to build for scale. * **The Bonus:** If you’ve danced with **Kubernetes, Docker, or AWS**, you’ll feel right at home. * **The Location:** You are based in **Poland** with full work authorization (we cannot provide sponsorship at this time). ### **Why Doodle?** * **Real Impact:** Your commits will change how the world meets. * **Technical Stretch:** We deal with "Time" problems most companies never encounter. It’s a masterclass in distributed logic. #### **Culture of Trust:** **We value curiosity, autonomy, and a life\-work balance that respects** ***your*** **time as much as our users'.** **Hiring Journey** * Initial Application Review * Technical Interview (based on Home Assignment ) * Exec Interview * HR Interview (BRYQ Assessment) * Final Offer \& Reference Check At Doodle, we’re committed to providing an environment of mutual trust and respect, where equal employment opportunities (EEO) are available to all applicants and teammates without regard to age, race, color, disability, religion, gender, and sexual orientation. Diversity and inclusion are of utmost importance to us. We’re committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better our work and our products will be. We want to hear from you, so please don’t hesitate to apply!We look forward to receiving your full application. **IMPORTANT NOTICE:** *Please note that we can only consider your application if you are* ***based and have the right to work in Spain.*** *At this time, we are unable to sponsor visa for this position or support with relocation.*