• Own and lead product features end-to-end: research, design, implement, test, and ship • Lead and shape engineering architecture - set standards for code quality, testing, and development practices across the stack • Mentor and guide other engineers in adopting AI-native workflows, establishing best practices and patterns • Talk directly to customers and translate vague requirements into polished user experiences • Design scalable backend systems (Python, FastAPI, PostgreSQL, GCP) • Write clean, maintainable, and testable code with minimal oversight • Drive architectural decisions and engineering processes that maximize AI-assisted development velocity • Ship fast and learn fast - high urgency environment

• Design, develop, and maintain backend systems and services for search functionality • Implement and optimize search and AI-driven semantic algorithms • Collaborate with data scientists, AI engineers, and product teams • Monitor and optimize search performance • Provide technical guidance and mentorship to junior engineers • Collaborate closely with cross-functional teams • Stay updated with the latest trends and advancements in search technologies

• Architect and lead development of high-throughput, low-latency streaming systems that power our core products • Drive the technical roadmap for streaming — including filtered streams, next-generation webhooks, and new capabilities that expand what developers can build on Solana • Lead system design discussions and make architectural decisions across the stack: software, hardware, and networking • Set standards for operational excellence — reliability, incident response, and system observability • Mentor and elevate engineers on the team, and drive technical consensus across engineering, product, and leadership • Partner cross-functionally with Sales, Support, and adjacent infrastructure teams to ensure streaming products meet the needs of customers at scale • Identify and solve complex, ambiguous problems that span multiple systems

Role Description As a Backend Staff Engineer, you will be responsible for driving the technical standards for the Backend in our Last Mile Delivery domain. You will work closely with multiple squads within the domain to provide technical leadership in areas such as: - Tech roadmaps - Architecture decisions - Feature development and release cycles Your role will also involve mentoring junior developers and contributing to the scaling up of Backend engineers in multiple squads, which includes: - Conducting technical interviews to identify and onboard talented engineers - Designing, building, and maintaining features for domain applications - Providing technical leadership and managing dependencies - Conducting design and code reviews - Supporting and helping grow domain team members by assisting with technical blockers - Continuously discovering, evaluating, and implementing new technologies to improve efficiency - Participating in architecture and design discussions - Contributing to building the technical roadmap - Improving engineering standards, tooling, and processes - Conducting feasibility studies to validate capability and functionality - Drafting and submitting intellectual property - Conducting research and assessing current technologies - Developing and executing complex, multi-tier distributed software search applications - Applying technical and domain expertise to products and problems - Assessing and writing code to improve or extend applications - Managing and providing assistance for current software applications - Providing technical leadership and mentorship to others Qualifications - 8+ years of experience - Solid backend engineering experience with Node.js and Go - Strong foundation in programming fundamentals - Excellent communication skills - Proven problem-solving abilities and a willingness to help others achieve their goals - Extensive experience with Git in a team environment - Proficiency in writing testable code and unit tests - Bonus: Experience in a fast-growing startup in the on-demand services industry - Extensive experience with A/B experiments and a data-driven approach to product development Company Description Yassir is the leading super App in the Maghreb region set to change the way daily services are provided. It currently operates in 45 cities across Algeria, Morocco, and Tunisia with recent expansions into France, Canada, and Sub-Saharan Africa. It is backed by approximately $200M in funding from VCs from Silicon Valley, Europe, and other parts of the world. We offer on-demand services such as ride-hailing and last-mile delivery. Building on this infrastructure, we are now introducing financial services to help our users pay, save, and borrow digitally, helping usher the continent into a digital economy era. We’re not just about serving people - we’re about creating a marketplace to bring people what they need while infusing social values.