Jobs at Yassir

Own the lifecycle and business impact of machine-learning products supporting pricing, matching, ranking, forecasting, fraud, credit risk, and personalization. Lead data-driven discovery, problem framing, metrics, experimentation, roadmap decisions, production monitoring, and model retirement. Partner with data scientists, ML engineers, data engineers, and cross-functional stakeholders across multiple markets. Mentor peers and promote rigorous, transparent data-driven decision-making.

Designs and builds Android mobile applications, integrates them with backend services, and ensures performance, quality, and responsiveness. Collaborates with engineering and design teams to deliver features, resolve technical bottlenecks, fix bugs, maintain code quality, and translate user requirements into effective technical solutions. The role also contributes to architecture, algorithms, product ideas, and timely delivery in a rapidly growing technology environment.

Own end-to-end pricing strategy across mobility and last-mile delivery markets. Develop pricing models, lead A/B experiments, forecast revenue, conduct competitive benchmarking, and calibrate market pricing. Translate pricing logic into product requirements, present results to senior leadership, lead cross-functional initiatives, and mentor junior pricing specialists while balancing revenue growth with supply-demand health.

Co-create and facilitate product discovery, conduct customer and market research, validate ideas through experiments and prototypes, and translate insights into prioritized product opportunities. Collaborate with engineers, designers, marketers, clients, and stakeholders on business models, go-to-market plans, and product launches. Facilitate agile ceremonies and support timely delivery of digital products.

Develop and maintain full-stack web applications using Node.js and React. Build responsive user interfaces, server-side logic, RESTful integrations, and scalable services. Collaborate with cross-functional teams to deliver features, optimize application performance, resolve bugs, and maintain code quality through modern development tools and automation. Work with SQL and NoSQL databases, version control, and cloud-native technologies such as Docker, Kubernetes, and Redis.

Processes employee and company expenses, assists with payroll, maintains accounting records, reconciles payroll and expense accounts, prepares basic financial reports, supports month-end closing, and ensures compliance with financial policies. Coordinates with HR and other departments on payroll and employee-related financial matters.

Lead quality assurance for fintech products, including payment systems, digital wallets, and financial APIs. Own end-to-end testing strategy, automation frameworks, API validation, production debugging, defect management, and release sign-off. Manage and mentor QA resources across manual and automated testing, using Java, Robot Framework, Rest Assured, Selenium, Cypress, JUnit, and TestNG. Ensure financial applications are secure, compliant, reliable, high-performing, and continuously improved.

Manage and grow a portfolio of strategic partners by monitoring performance, implementing improvement plans, coordinating promotions, providing training and support, resolving issues, identifying upsell and cross-sell opportunities, and producing performance reports.

Ensure the quality and stability of financial-services applications across Android and iOS. Responsibilities include reviewing requirements, designing and executing manual and automated tests, managing test cases, reporting and verifying defects, performing regression, smoke, sanity, performance, end-to-end, and post-release testing, and coordinating with cross-functional teams throughout the software development lifecycle.

Own the end-to-end data and DMP layer, including high-volume event streaming, near-real-time segment and audience computation, analytical stores, targeting, and reporting feeds. Design reliable stream-first pipelines, manage schemas and data contracts, and ensure correctness, freshness, and scalability. Use AI-assisted development with rigorous documentation, architecture decisions, testing, and code review. Collaborate asynchronously in a lean distributed team.

Own the platform and delivery infrastructure supporting a resilient advertising platform. Responsibilities include managing production Kubernetes clusters on GCP, infrastructure-as-code, GitOps, CI/CD pipelines, observability, SLOs, performance testing, backups, disaster recovery, and quality and security gates. The role also involves integrating AI into CI/CD, documenting systems thoroughly, and operating effectively in a lean, asynchronous team.

Own the frontend of an advertising platform, including campaign management, creative assets, reporting dashboards, administration, and conversational interfaces. Build a typed, contract-first client, implement and maintain a multilingual accessible design system, and ensure reliable end-to-end and unit testing. The role requires strong product judgment, documentation, asynchronous communication, and the ability to review and validate AI-generated code in a lean engineering environment.

As a Senior Back-end Engineer at Yassir, you will develop scalable software using Node.js, design microservices, improve code quality, and solve complex problems in a fast-paced environment.

The Senior Back-end Engineer will develop scalable software using Node.js, design microservices architecture, ensure code quality, and collaborate with teams.

As a Senior Back-end Engineer at Yassir, you will develop scalable software using Node.js, design microservices architecture, and improve existing code quality while collaborating with teams on technical solutions.

Designs, operates, and improves secure, scalable cloud infrastructure on GCP. Supports engineering squads with infrastructure troubleshooting, architecture guidance, production monitoring, automation, deployment, scaling, reliability, documentation, and cost optimization. Requires strong Linux, scripting, containerization, Kubernetes, infrastructure-as-code, networking, and monitoring expertise, along with effective cross-functional communication.

Manage daily CRM operations, adoption, performance, and continuous improvement. Track customer support KPIs such as SLA, response and resolution times, backlog, productivity, quality, and CSAT. Coordinate with Product and Tech teams on incidents and enhancements, train users, gather operational feedback, test new features, and analyze their impact. The role requires strong communication, coordination, analytical, and reporting skills.

Own the backend ad-serving path and integrations with external ad servers and demand partners. Build real-time serving, augmentation, bidding, and reconciliation logic with strict requirements for latency, monetary correctness, idempotency, reliability, and security. Use AI-first development practices to specify, review, and validate code. Maintain architecture documentation and API contracts while operating autonomously in an asynchronous, distributed environment.

Build and maintain robust, scalable Node.js back-end systems and microservices. Design system architectures, develop server-side applications, improve code quality through testing and reviews, troubleshoot complex issues, and collaborate with engineering and design teams to translate user requirements into effective technical solutions.

Design and maintain scalable, secure cloud infrastructure; integrate security into development workflows; monitor and troubleshoot production systems; automate deployment and scaling; and improve infrastructure efficiency, reliability, and cost effectiveness. The role requires Linux administration, scripting, cloud platforms, containerization, orchestration, infrastructure as code, networking, and security expertise.