Open to opportunities

Adams Bolaji

@bjayzee

Senior backend engineer building scalable Java microservices and event-driven systems, with clean-architecture discipline.

Nigeria

Message

What I'm looking for

I’m looking to build reliable, cloud-native backend systems—owning APIs, event-driven integrations, and performance. I want a team that values clean architecture and automation, while giving me space to apply AI engineering responsibly.

I’m a Senior Software Engineer with 6+ years designing and building scalable backend systems using Java, Spring Boot, microservices, and cloud-native technologies. I deliver enterprise-grade APIs, distributed systems, and event-driven architectures across fintech, insurance, SaaS, and AI-driven platforms.

My strength is backend architecture and reliable integration: REST APIs, GraphQL, PostgreSQL, Docker/Kubernetes, AWS, and messaging with Kafka and RabbitMQ. I focus on clean architecture, automation, performance optimization, and engineering best practices to produce maintainable, high-impact systems.

I’ve also built production-grade AI applications using Python and OpenAI APIs, including RAG systems with chunking, vector embeddings, and semantic search pipelines. From leading teams and cross-functional architecture reviews to training and mentoring engineers, I bring ownership, collaboration, and pragmatic engineering judgment to every release.

Experience

Work history, roles, and key accomplishments

Current

AI Engineering Fellow

Current

Andela

Jan 2026 - Present (4 months)

Built production-grade AI applications with Python and OpenAI APIs, optimizing for scalability and latency. Developed RAG systems and structured prompt pipelines to improve reliable LLM output for production use cases.

OpenAI API Python Retrieval Augmented Generation (RAG)Vector Embeddings Semantic Search Prompt Engineering Structured Prompt Pipelines Latency Optimization Scalability

Current

Senior Software Engineer

Current

Mutual Benefits Assurance Plc

Dec 2024 - Present (1 year 5 months)

Designed and implemented scalable backend middleware to integrate enterprise insurance platforms and transactional workflows, improving resilience and real-time communication. Built event-driven notification and webhook processing using Kafka/RabbitMQ and strengthened reliability with Resilience4j and rate limiting.

Java Spring Boot Spring Modulith Kafka RabbitMQ PostgreSQL Resilience4j Bucket4j Webhook Processing Middleware Integration

Senior Software Engineer

Buildas AI

Mar 2024 - Dec 2024 (9 months)

Delivered scalable SaaS and AI-assisted platforms using TypeScript and Node.js, supporting rapid MVP delivery for startups and international clients. Built an ATS platform for a UAE client and shipped OpenAI-powered features using Next.js and Supabase, alongside performance and modernization improvements.

NodeJS OpenAI API TypeScript Node.js Docker Next.js Supabase SaaS Development Performance Optimization Workflow Automation MVP Delivery

Java Developer & Instructor

The Bulb Africa

Jun 2023 - Mar 2024 (9 months)

Trained and mentored aspiring backend engineers in Java and Spring Boot, delivering practical labs on scalable backend systems. Taught clean architecture and API development to equip students with industry-relevant skills.

Java Spring Boot Backend Systems Design REST API Development Clean Architecture Mentoring Software Engineering Principles Lab Instruction Enterprise Development

Programming Facilitator

TechQuest STEM Academy

Jun 2023 - Aug 2023 (2 months)

Trained 15+ graduate trainees in web development and programming languages, including JavaScript, PHP, and C++. Delivered interactive lessons and provided one-on-one technical support and mentorship to improve placement outcomes.

One On One Support Web Development JavaScript PHP C++Programming Mentorship One on One Support Interactive Lesson Design Technical Training

Technical Team Lead

Irespond Africa

Feb 2021 - Jun 2023 (2 years 4 months)

Led a cross-functional team of 5 to deliver scalable mental wellness platforms, designing backend services and REST APIs. Built real-time communication with Socket.io and integrated third-party payments (Paystack), contributing to high performance and reliability.

NodeJS Socket.IO Real Time Communications Spring Boot PostgreSQL MongoDB RESTful APIs Real time Communication Paystack Integration Team Leadership Code Reviews

Java Full Stack Developer

Integrated Software Services Limited

Feb 2021 - Dec 2021 (10 months)

Developed enterprise-grade financial and access-control applications using Java, Spring Boot, Hibernate, and Vaadin. Built backend services for payment workflows, wallet management, and credit-scoring, integrating third-party APIs and improving maintainability and reliability.

Third Party API Integration Java Spring Boot Hibernate Vaadin Payment Workflows Wallet Management Credit Scoring Backend Performance Security focused Development

Software Engineer

Condueet

Jul 2020 - Jan 2021 (6 months)

Built Java Spring Boot microservices for banking data aggregation and KYC verification, integrating multiple financial APIs via secure RESTful services and webhook architectures. Implemented enterprise security practices including AES-256 encryption, tokenization, and multi-factor authentication for PCI DSS-aligned backend workflows.

Multi Factor Authentication Java Spring Boot Microservices KYC Verification Banking Data Aggregation RESTful APIs Webhook Architecture AES 256 Encryption Tokenization PCI DSS Webhook Architectures

Software Engineer Trainee

Semicolon Africa

Mar 2019 - Jun 2020 (1 year 3 months)

Applied software development lifecycle practices to deliver team-based solutions through collaborative projects. Built practical understanding of core software engineering concepts and design patterns via assignments and group exercises.

Team based Development Software Engineering Concepts Design Patterns Collaborative Projects Coding Exercises Practical Assignments Problem Solving Software Development Life Cycle (SDLC)