yubo - Senior Backend Engineer (Engagement & Monetization)
Upload My Resume
Drop here or click to browse · Tap to choose · PDF, DOCX, DOC, RTF, TXT
Requirements
• You have 8+ years of backend engineering experience, in startup/scale-up environments • You are highly proficient in Node.js and TypeScript. • You have strong experience designing and scaling APIs (performance, security, observability). • You have worked with event-driven architectures (Kafka, RabbitMQ, NATS). • You are comfortable designing scalable architectures serving high volumetry. • You have deep knowledge of databases (SQL & NoSQL) in production environments. • You demonstrate strong engineering best practices (testing, resilience, documentation). • You have a strong product mindset and understand how backend decisions impact business KPIs • You enjoy mentoring and raising the technical bar within a squad. • You communicate clearly, raise trade-offs early, and align stakeholders proactively. • You’re comfortable working in English in an international environment.
Responsibilities
• Set the technical direction and deliver backend systems that enable continuous experimentation at scale, rolling out services and business logic for millions of users while tracking interactions reliably and safely. • Define technical direction for backend initiatives within the Engagement & Monetization squad. • Translate product and monetization goals into actionable backend specifications. • Deliver KPI-impacting backend changes that directly contribute to core business metrics. • Make sound trade-offs between speed, quality, scalability, and product outcomes, documenting decisions when needed. • Ensure production readiness (testing, resilience, observability, operational excellence). • Support experimentation by building measurable, well-instrumented, safe-to-iterate systems. • Improve tracking and observability to reliably attribute experiment impact • Contribute to backend codebase improvements (e.g., TypeScript migration) • Mentor engineers through reviews, pairing, and design feedback. • Create alignment across squads and proactively manage cross-team dependencies. • Strengthen documentation, specs, and onboarding materials to increase squad effectiveness. • OUR TECHNICAL ENVIRONMENT / TOOLS WE USE • Backend: Node.js & TypeScript • Architecture: Event-driven systems (Kafka, RabbitMQ, NATS) • Databases: NoSQL, key-value stores, relational databases at scale • Practices: RFC processes, technical specs, structured decision-making • Experimentation & Observability: Datadog, Grafana… • Ship backend initiatives that measurably improve core Engagement & Monetization KPIs (DAU, conversion, retention, revenue signals). • Enable faster, safer experimentation by building systems that are fully instrumented, observable, and easy to iterate on. • Increase the squad’s delivery velocity while maintaining high engineering standards. • Reduce technical friction by improving architecture clarity, documentation, and decision-making processes. • Strengthen the reliability and scalability of backend services supporting millions of users. • Raise the overall technical bar within the squad through mentorship and architectural influence. • Contribute to structuring the backend organization in preparation for future squad scaling. • THE RECRUITMENT PROCESS • Phone screen with a Talent Acquisition Manager • Interview with Armand (Engineering Manager) • Technical test (home assignment + debrief & system design with Backend team) • Cultural fit assessments
Benefits
• A highly competitive salary range as well as equity in the company • A highly flexible remote work policy, 2 days at the office per month, with monthly team events. • We also cover fees for external professional events and meetups (Android Makers, etc…) • Great health insurance coverage for both you and your family by Alan, fully paid for by Yubo ! • Numerous benefits for parents: additional parental leave, easy access to nurseries and daycare facilities in France. • OUR APPROACH TO PRIVACY & SAFETY • As part of your role, you may handle tools and features involving personal data. We expect all employees to demonstrate strong awareness of privacy and safety issues, and to actively support our Privacy & Safety by Design efforts. • Here’s how we live our mission every day: • You own the impact: Step up, adapt, and make it matter • Unconventionally Smart: Hack with intent, borrow smart, build better • Be Bold & Resilient: Raise your head, break barriers, keep moving forward • One team, one mission: No egos, no passengers, just shared wins • Trust & Flexibility: Our hybrid model calls for only two office days a month; the rest is up to the rhythm that works best for you. • Culture is central at Yubo, hence the numerous benefits: • Cool Workplace: enjoy our amazing Parisian office and our many hybrid work options • Team Activities: participate in get-togethers, events, and team-building activities • Family-Friendly: we support parents with childcare options and family-friendly policies • Wellness Programs: benefit from comprehensive health insurance, wellness programs, sports classes, and mental well-being initiatives
No credit card. Takes 10 seconds.