Senior Backend Engineer
Yubo
Senior Backend Engineer
Yubo
Social discovery platform with live streaming
Yubo is the instantly social, social app: the leading real-time social discovery platform where you can meet new people for friendship, crushes and community. Our mission is to help young adults find community - whoever they are, wherever they are and whenever they feel social. That's why we’re building a more spontaneous and human social world, one based on interaction, exploration and possibility.
We've pioneered a new way for Gen Z to socialize online, and with millions of active users, our goal is to redefine how we connect today and tomorrow. Our team is international, multicultural and deeply committed to its mission.
As the leading platform to socialize online, we have a special responsibility to build a safe digital space for our community. Safety is embedded in our DNA, and our proactive approach focuses on user protection, support, and education.
We also work closely with the broader technology industry to share our knowledge and NGOs create industry-leading child protection standards.
Join us in this exciting journey and help us shape the future of social interactions!
At Yubo, our backend powers a social discovery platform used by millions of people worldwide, handling large volumes of user interactions and real-time events every day. And as we continue to evolve our product, we're looking to strengthen the foundations that make all of this possible.
We're looking for a Senior Backend Engineer to join our Backend Experience team.
You'll initially work alongside other Backend Engineers on some of our biggest technical challenges: modernizing a codebase shaped by years of fast iteration, improving reliability and scalability, and building the foundations that will help us ship faster and more safely.
As our organization evolves, you'll also take ownership of the backend for a cross-functional product area, working closely with Product, Design, and Mobile Engineering to deliver impactful features to millions of users.
This role is particularly well suited to someone who enjoys solving complex technical problems, challenging existing architecture, and balancing engineering excellence with product impact.
Design and deliver scalable, resilient and cost-efficient backend services, APIs and event-driven systems
Contribute to modernizing our codebase
Investigate complex production issues using logs, metrics and traces, and turn recurring problems into long-term improvements
Contribute to major technical initiatives, including event tracking improvements and the backend evolution supporting our rebranding
Drive technical discussions and RFCs, making pragmatic trade-offs between delivery speed, quality and maintainability
Partner with Product, Design and Mobile Engineering to translate product needs into reliable backend solutions
Mentor teammates through code reviews, pair programming and knowledge sharing
Improve documentation, engineering standards and onboarding practices to make the team more effective
Backend: Node.js & TypeScript
Architecture: Event-driven systems
Observability: Logs, metrics, traces and performance monitoring
Engineering practices: RFCs, code reviews, pair programming, automated testing
Codebase evolution: TypeScript migration, modularization, monorepo
You have 5+ years of backend engineering experience, ideally in a startup or scale-up environment
You have strong experience with Node.js and TypeScript
You are comfortable designing and maintaining APIs and event-driven systems
You understand the challenges of building scalable, reliable and cost-efficient systems
You have strong debugging skills and enjoy solving complex production issues
You apply solid engineering practices while remaining pragmatic about delivery
You can challenge architectural decisions, explain trade-offs and contribute to technical discussions
You have a product mindset and enjoy collaborating with Product, Design and Engineering teams
You enjoy sharing knowledge and helping other engineers grow
You are comfortable working in an environment where priorities and technical challenges evolve
Contribute to meaningful backend roadmap initiatives that improve the reliability, scalability and maintainability of our systems
Own the backend delivery of a new product feature end-to-end, working with Product Design and Mobile Engineering to define technical trade-offs and a clear delivery plan
Identify and propose a concrete improvement to our backend architecture, codebase or engineering practices, bringing it from initial assessment to team alignment and a documented RFC
Help strengthen the team's engineering standards and ability to deliver high-quality product experiences at scale
Phone screen with a Talent Acquisition Manager
Interview with Armand, Engineering Manager
Technical test (home assignment, debrief & system design with Backend Engineers)
Cultural fit assessments
And if everything went well, an offer!
A highly competitive salary range as well as equity in the company
A highly flexible remote work policy, with 2 days at the office per month and regular team events
Coverage of fees for external professional events and meetups
Great health insurance coverage for you and your family by Alan, fully paid for by Yubo!
Numerous benefits for parents, including additional parental leave and childcare support
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.
Join Yubo and help shape the future of Social Discovery while enjoying a culture that values flexibility, well-being, and impact.
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.
Enjoy Top-notch Benefits
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
Yubo is a social discovery platform for Gen Z that helps users meet new people through live video rooms and interactive games on a mobile app. Users create profiles, join live streams, and play games, with a freemium model that unlocks premium features like seeing who viewed their profile and expanding their list of potential friends. It stands out by focusing on live video social discovery for young people, combining real-time video with games rather than just messaging or dating, and using a mobile-first approach. Its goal is to help young people connect with new friends around the world through live video and shared activities.
Explore more opportunities at Yubo