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KOLADE OLUWADARE SENIOR BACKEND ENGINEER JAVA | KOTLIN | AI INTEGRATIONS | FINTECH Lagos, Nigeria ā¢ š§ [email protected] š +234 810 475 7414 ā¢ GitHub: AccoladeCreative ā¢ LinkedIn: Oluwadare-Kolade SUMMARY Senior Backend Engineer with 6+ years of experience designing and building scalable, secure, and high-performance backend systems using Kotlin, Java, and Spring Boot. Strong focus on fintech platforms, transaction processing, API integrations, and distributed system design. Experienced in building transaction-safe services, implementing idempotent workflows, designing REST/GraphQL APIs, and optimizing database performance in production environments. Proven ability to handle financial workflows, payment integrations, and backend systems requiring consistency, auditability, and reliability at scale. Also experienced in integrating AI/LLM capabilities into backend services to support intelligent automation and data-driven processing. Open to backend-focused roles in fintech, platform engineering, and enterprise systems. CORE COMPETENCIES Backend & Platform Engineering Spring Boot (Java/Kotlin), REST & GraphQL APIs Microservices architecture & distributed systems Transaction processing & idempotent workflows API security (JWT, RBAC, OAuth2 basics) External integrations (payment gateways, third-party APIs) Data & Infrastructure PostgreSQL, MySQL, MongoDB Query optimization & indexing Redis (caching, session management) Docker & CI/CD pipelines Cloud & Infrastructure AWS (EC2,