Open to opportunities

Dennis Shaba

@dennisshaba

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Senior software engineer building scalable Java/Spring platforms with backend, frontend, and DevOps leadership.

Nigeria

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What I'm looking for

I want to build efficient, scalable systems where I can own backend + frontend delivery, lead teams, and bring DevOps/CI-CD discipline. I’m excited to automate with AI and collaborate in agile teams to solve real-world problems.

I’m a software engineer with experience in backend and frontend development, specializing in Java and Spring Boot for building scalable, high-performance applications. I build RESTful APIs, handle database design, and deliver full SDLC work, while also integrating AI-powered features to automate processes and improve user experience.

Most recently, as a Senior Software Engineer, Devops, and Team Lead (Contract), I architected and built the entire Yeve platform—backend microservices, mobile app, and web frontends for clients, vendors, and admins. I also owned the delivery pipeline end-to-end (backend, iOS + Android, web, builds, releases, monitoring, and on-call) and led core product systems like marketplace workflows and payments/financial infrastructure, including wallets, escrow, payouts, and subscriptions.

I’ve led teams and established best practices for high-traffic, reward-based advertising platforms, mentoring junior developers and implementing DevOps practices and CI/CD pipelines for automated deployments. Earlier roles strengthened my fundamentals in RESTful API development, performance and reliability improvements, and distributed systems using Apache Kafka and Spring Cloud Stream—plus fullstack delivery with Nextjs & TypeScript—always with an agile mindset and a drive to learn and collaborate.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer & DevOps Lead

Yeve

Mar 2025 - Mar 2026 (1 year)

Architected and built the Yeve platform including backend microservices, mobile apps, and web frontends. Built the marketplace and payments/money infrastructure, and owned cloud infrastructure and end-to-end delivery pipeline with monitoring and on-call.

Microservices Frontend Marketplace Payments Infrastructure Escrow Payouts Subscriptions Commissions Cloud Infrastructure Monitoring On Call

Senior Software Engineer & Team Lead

Admoni

Sep 2023 - Jan 2026 (2 years 4 months)

Led development teams and provided technical leadership for a reward-based advertising platform. Architected scalable solutions for high-traffic use, mentored developers with code reviews, and implemented DevOps practices with CI/CD pipelines for automated deployments.

Technical Leadership Scalable Systems DevOps CI CD Pipelines Code Review Mentoring

Fullstack Developer

Jobsecta

Apr 2024 - Nov 2024 (7 months)

Developed the Job Posting and Management UI and built an optimized job creation wizard. Improved state persistence during long workflows and enhanced performance through API response optimization and caching strategies.

Next.js TypeScript Form Validation Persistence Caching Performance Optimization

Backend Developer

Ontrac Technologies Limited

Aug 2021 - Feb 2022 (6 months)

Designed and developed scalable, high-performance RESTful APIs. Refactored a legacy Java codebase using dependency injection and caching, built a distributed system with Apache Kafka and Spring Cloud Stream, and created automated unit/integration tests.

RESTful APIs Java Dependency Injection Caching Apache Kafka Spring Cloud Junit Mockito Selenium Integration Testing

Frontend Developer

Ehealth4Everyone

Apr 2021 - Jul 2021 (3 months)

Collaborated with designers and developers to build user-friendly interfaces and implement new features. Conducted code reviews, supported usability testing, and worked on a custom WordPress theme including widgets and third-party API integrations.

UX collaboration Code Review Usability Testing WordPress Theme Development API Integration

Backend Developer (Contract)

Indenware Technologies

May 2020 - Oct 2020 (5 months)

Modified existing software using Java and Spring Boot to fix bugs, adapt to new hardware, upgrade interfaces, and improve performance. Designed and optimized data models and SQL queries with JPA, Hibernate, and MySQL, and architected Spring Boot microservices for scalable backend systems.

Java Spring Boot SQL JPA Hibernate MySQL Microservices Performance Optimization

IT Support

Sweet Mama Farms Limited

Apr 2019 - May 2020 (1 year 1 month)

Managed Active Directory user accounts and permissions and evaluated new technologies to improve efficiency. Provided training and support to employees on technology tools and software applications.

Active Directory User Accounts Permissions Management IT Support Employee Training

IT Support (NYSC)

Adiel Technologies Limited

Feb 2018 - Mar 2019 (1 year 1 month)

Provided first-line technical support to employees via in-person, phone, and email channels. Troubleshot hardware and software issues across Windows, Mac, and mobile devices and supported system administration tasks like user accounts and access permissions.

Technical Support Troubleshooting Windows MacOS Mobile Device Support System Administration User Account Management Permissions