• 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.

• Collaborate with stakeholders throughout the SDLC to translate requirements into high-quality, reliable, cost-effective, and maintainable solutions that solve customer problems and generate business outcomes. • Design, develop, and implement high quality software components with a focus on Continuous Delivery principles and practices. • Champion integrated engineering practices within the organization, fostering collaboration and shared ownership between development, operations, and security teams. • Deliver technical and administrative support for live applications, promoting automation and proactive monitoring and self-recoverability, rapid incident response, and continuous improvement. • Analyze existing systems and processes to identify bottlenecks and opportunities for improvements to flow. • Own the configuration management of software items and their dependencies, utilizing Infrastructure as Code (IaC) tools. • Collaborate on developing and implementing a measurement strategy for tracking key performance indicators (KPIs) related to software delivery and performance.

• Development and enhancement of core products in C# and C++ • Design and implementation of high-performance, maintainable software components • Analysis and optimization of existing components (performance, stability, memory) • Active participation in architecture and design decisions • Conducting code reviews and ensuring technical quality • Close collaboration with Product Management, QA and Support