Zakariya Raji

5-month on-site engagement. Helped establish the engineering team structure, defining roles, responsibilities, and delivery processes. Mentored engineers and supported technical growth through regular reviews and hands-on guidance. Partnered closely with Product and UX from early design through implementation and deployment.

Led end-to-end delivery of insurance SaaS products while remaining hands-on with backend architecture and key Golang code paths. Worked with Kubernetes-based deployments and centralized logging systems using Elasticsearch-backed observability. Oversaw deployments, monitoring, alerting, and production readiness to ensure stable and reliable releases.

Owned delivery of backend initiatives while mentoring engineers and coordinating cross-team work. Led design and code reviews for payment and telecom backend systems. Collaborated with Product to deliver features supporting large-scale user bases. Stepped in hands-on to resolve production issues and guide complex refactors.

Freelance. Delivered backend services for an AI-powered conversational commerce platform. Collaborated with founders and product teams to ship features reliably and at speed. Built and maintained production Golang services and integrations.

Freelance. Built backend services for a KYC/KYB identity verification platform. Worked with compliance and product teams to deliver secure, audit-ready systems.

Led teams of 5–8 engineers across multiple projects, owning sprint planning, execution, and delivery outcomes. Worked closely with Product and clients to translate business requirements into technical plans. Set engineering standards for code quality, reviews, and architectural decisions.

Remained hands-on with backend development and critical technical decisions when needed. Improved delivery quality by reducing post-release defects by 40%.

Contributed to backend delivery for fintech platforms processing high volumes of financial transactions. Worked closely with Product, Design, and QA teams to ship secure financial products. Took ownership of critical services, infrastructure improvements, and production support. Improved performance and deployment speed through technical and process improvements.

Remote. Mentored 800+ engineers on backend development, system design, and best practices. Provided architectural guidance and code reviews for startups and growing teams.

Engineered biometric data processing systems handling over 12 million records with high accuracy. Optimized backend systems using Java and Vert. x, achieving 99.9% uptime and improved performance. Led backend development for blockchain-enabled authentication and community platforms.

Built and maintained micro-banking applications using Java and Spring Boot. Integrated third-party APIs and improved backend performance. Developed micro-banking and financial applications using Java, Spring Boot, and Apache Fineract. Integrated third-party APIs and improved backend performance and reliability.

Built HR and security management systems with biometric integrations. Worked closely with business stakeholders to translate operational needs into software solutions.

Customized and extended Orange HRM solutions using PHP and Symfony. Delivered internal tools to support HR and operational workflows.

Delivered hands-on Java programming training with a strong focus on practical application. Mentored students with a 100% course completion rate.

Taught foundational programming concepts and software development best practices. Supported early-career developers through structured learning and mentorship.

Built HR and security management applications for institutional use. Supported internal digitization and process automation initiatives.