Mwijuka Haroid

Backend Software Engineer with 4+ years of experience designing, building, and shipping scalable Java and Spring Boot applications across fintech, healthcare, and enterprise platforms. Experienced in developing secure REST APIs, micro services, event-driven Pub/Sub systems, and cloud-native applications that power production workloads. Skilled in Google Cloud Platform (GCP) and Microsoft Azure, with hands-on experience deploying cloud-native applications, managing Kubernetes (GKE) workloads, implementing CI/CD pipelines, and improving application reliability through monitoring, logging, health checks, and observability.

Comfortable building web interfaces with React and actively expanding my Kotlin and Swift skills through hands-on projects, enabling me to contribute across the full product lifecycle. Backed by experience in Agile product delivery, I collaborate effectively across engineering and product teams to deliver reliable software that solves complex business challenges. I enjoy solving complex technical challenges and have a track record of turning ambiguous requirements into scalable, maintainable, and production-ready software that delivers measurable business value.

Backend engineer at Monarc Engineering (2026-05 – Present)

Monarc is an R&D-focused technology consultancy that designs and develops software solutions to solve real-world operational challenges.

• Designed and developed scalable backend applications, APIs, and business services for R&D software projects.
• Researched, prototyped, and evaluated technical solutions for real-world operational challenges.
• Integrated backend applications with databases, third-party services, and cloud platforms.
• Implemented secure authentication, authorization, validation, and API development standards.
• Contributed to debugging, bug tracking, testing, documentation, code reviews, and Agile delivery workflows.
• Collaborated with product managers, researchers, designers, and developers to translate requirements into working software.
• Technologies: Go, Java, Python, Django, Spring Boot, Microsoft Azure, Vercel, Github, Railway, React, HTML, CSS, and Bootstrap.

Lead Backend engineer at Oliveeb LLC (2025-08 – 2026-05)

Oliveeb is a technology company focused on building intuitive web and mobile applications that simplify everyday life through user-centric software solutions.

• Orchestrated containerised deployments on Google Kubernetes Engine (GKE) using Helm and CI/CD pipelines.
• Designed and implemented scalable backend services, micro services, and secure REST APIs.
• Built event-driven and Pub/Sub-based systems to support reliable communication between distributed services.
• Managed Kubernetes workloads, production deployments, configuration, scaling, and application health.
• Improved observability through Prometheus metrics, structured logging, health checks, and request monitoring.
• Collaborated across backend, web, and mobile teams to deliver production-ready features and improve system reliability.
• Technologies: Java, Spring Boot, React, React Native, Google Kubernetes Engine, Google Cloud Platform, Prometheus, Docker, Helm, and Pub/Sub, Github.

Full stack web developer at Xapisoft (2024-02 – 2025-07)

Xapisoft is a software development and technology consulting company that delivers custom web, mobile, and enterprise software solutions, helping organisations modernise business processes through scalable, cloud-enabled applications.

• Developed responsive web applications using Next.js, integrating modern user interfaces with scalable backend services.
• Designed and implemented secure REST APIs and business logic using Java and Spring Boot.
• Built reusable frontend components and optimized application performance and user experience.
• Integrated third-party services, authentication workflows, and relational databases into web applications.
• Managed project planning, documentation, and team collaboration using Notion.
• Technologies: Next.js, React, Java, Spring Boot, REST APIs, Notion, HTML, CSS, JavaScript, Github.

Product manager at Xtellar (2022-01 – 2023-02)

Xtellar Works is a technology and infrastructure company building software, financial systems, and logistics solutions that enable businesses to source, ship, distribute, and scale operations across Africa.

• Defined product roadmaps and release plans, aligning engineering priorities with business objectives and customer needs.
• Collaborated with engineering, design, and business teams to translate requirements into product features and user stories.
• Managed product backlogs, sprint planning, feature prioritization, and Agile delivery processes.
• Coordinated bug tracking, issue triage, and release management to improve product quality and delivery.
• Leveraged analytics and user feedback to identify product improvements, measure feature adoption, and guide product decisions.
• Worked closely with stakeholders to define product requirements, acceptance criteria, and support product launches.
• Technologies: Notion, Lark, Jira, Sentry, Mixpanel, Agile (Scrum), Product Roadmapping, Backlog Management, User Story Mapping.

BSc in Applied Information Technology – ISBAT UNIVERSITY (2023-01 – 2026-12)