Overview
Alohi is an AI-first SaaS scale-up on a mission to simplify how businesses work. Our products (Sign.Plus, Dial.Plus, Fax.Plus, and Scan.Plus) serve 4M+ customers worldwide, from small businesses to global enterprises. We are building category-defining tools that people actually love to use. We started with seed support from FONGIT (Fondation Genevoise pour l'Innovation Technologique), backed by the State of Geneva, and have chosen to bootstrap our growth to stay financially independent and customer-focused. We are a lean, fast-growing team based in Geneva with strong traction across global markets, offering an entrepreneurial environment with high ownership and broad responsibilities from day one.
We are hiring a Senior Backend Developer to build and scale the server-side systems that power our products. You will own the development of APIs, backend modules, and database architecture, ensuring high performance and reliability as we serve millions of users worldwide.
This position is fully on-site at our Geneva office.
Responsibilities
* Design, build, and maintain backend systems that scale; hands-on engineer responsible for end-to-end delivery.
* Backend Development: build and maintain mission-critical backend systems to support high-volume requests across our product suite.
* Design and develop robust APIs and web services powering frontend applications.
* Develop and maintain backend modules with clean architecture and maintainable code.
* Build backend infrastructure for AI-powered features, including integration with LLMs, model APIs, and data pipelines for machine learning workflows.
* Performance & Scalability: identify and resolve performance bottlenecks in a high-traffic, scalable environment.
* Optimise database queries and system architecture to handle growing demand.
* Ensure development tasks are completed within timelines with minimal defects.
* Infrastructure & DevOps: work with containerisation technologies (Docker, Kubernetes) to deploy and manage services.
* Contribute to CI/CD pipelines and build systems to streamline development workflows.
* Participate in on-call rotations to ensure system reliability and respond to production incidents.
* Collaborate with cross-functional teams to deliver features end-to-end.
Requirements
* 3–5 years of experience in backend software engineering, ideally in a technology-driven or SaaS environment.
* Strong proficiency in Python.
* Solid experience with complex data structures and databases (MongoDB, MariaDB, Elasticsearch).
* Able to critically evaluate and effectively use AI-assisted development tools while maintaining a deep understanding of the underlying code.
* Strong Linux knowledge and hands-on experience.
* Good understanding of HTTP, REST, web servers, and microservices architecture.
* Experience with containerisation (Docker, Kubernetes).
* Familiarity with build systems and CI/CD procedures.
* Ability to write clean, scalable, and well-tested code.
* Strong problem-solving skills and attention to detail.
* Fluent in English (written and spoken).
What we offer
* Office First: We believe the best collaboration happens in person. You'll be based at our Geneva office, working alongside a lean, high-calibre team where ideas flow freely and decisions happen fast.
* AI-First Technology: We provide all the devices and software you need to excel, including access to cutting-edge AI tools and a modern tech stack.
* Personal Development: We invest in your growth with a dedicated learning budget for training programmes, conferences, courses, and professional development opportunities.
* Quarterly Events & Annual Retreats: Regular team events and company-wide retreats to connect, celebrate wins, and have fun together.
* Award-Winning Culture: Recognised as a Great Place to Work and Best Workplace.
* Perks & Wellbeing: Weekly yoga sessions, plus discounts on gym memberships, restaurants, and Apple products.
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