SAP ABAP & S/4HANA Developer | UI5/Fiori | Customizing Specialist
SAP ABAP Developer with expertise in S/4HANA development, ABAP OO, CDS Views, OData, and SAP UI5/Fiori applications. Delivering enterprise solutions that optimize processes, improve performance, and streamline business workflows.
Professional Summary
SAP ABAP Developer with comprehensive expertise in S/4HANA development, ABAP OO, Web Dynpro, CDS Views, OData services, and SAP UI5/Fiori applications. Strong foundation in SAP Customizing (IMG/SPRO), SAP UI5/Fiori, and end-to-end business processes (MM, SD, FI, PP). Proven track record delivering enterprise solutions that reduced processing time by 60%, improved system performance, and streamlined business workflows. Experienced in both academic and industrial environments with remote and on-site project exposure across Germany, UK, and Nigeria. Structured and methodical work approach with strong business administration understanding and service-oriented attitude.
What I Do
Enterprise ABAP
Design robust ABAP components, DDIC, Web Dynpro, and SAP UI5/Fiori UIs that scale
Customizing & Enhancements
Translate requirements to IMG changes, exits, BAdIs
Performance & Quality
Measure, profile, and optimize with SAT/ST05; test-first mindset
I care about clean architecture, testability, and measurable performance improvements. My approach combines deep SAP knowledge with modern development practices to deliver solutions that not only work but excel in enterprise environments.
Get In Touch
Location
Essen, Germany
Willing to relocate
okpanachivictor0@gmail.com
Phone
017634488087
Expertise & Technologies
A comprehensive skill set spanning SAP development, modern web technologies, and enterprise solution architecture
SAP ABAP
SAP S/4HANA
SAP UI5/Fiori
Tools
I care about clean architecture, testability, and measurable performance improvements.
Featured Projects
A showcase of enterprise solutions and technical innovations that demonstrate my expertise in SAP development and modern technologies
S/4HANA Material Master Migration
Led data migration for 50,000+ material records with 99.8% accuracy using LSMW and Migration Cockpit.
SAP Fiori Leave Management
Full-stack SAP UI5/Fiori app with OData V2, CRUD operations, and multi-level approvals for 200+ users.
SD Pricing BAdI Enhancement
Country-specific tax calculation rules for 3-country rollout, 50% pricing error reduction.
Custom ALV Purchase Order Analysis
Dynamic selection, interactive grid, drill-down for 10,000+ PO analysis; 20 hours/week saved.
University Exam Management System
CRUD flows for students, exams, results with structured MVC architecture and role-based access.
SAP UI5 Procurement Hub
Centralized procurement dashboard with purchase requisitions, PO creation, and vendor management via SAP UI5/Fiori.
Professional Experience
A progressive career path showcasing growth in SAP development, with consistent delivery of measurable business impact across Germany, UK, and Nigeria
Software Developer
- Developed 3+ production-ready enterprise web applications (Next.js, TypeScript) serving 500+ end users with seamless SAP backend integration via REST APIs
- Reduced page load time by 40% through code splitting, lazy loading, and Tailwind CSS optimization
- Implemented TypeScript strict mode reducing runtime errors by 60%
SAP ABAP Developer & Customizing Specialist
- Developed and implemented 12+ SAP ABAP solutions (reports, ALV grids, Web Dynpro applications, Smart Forms) that reduced manual processing time by 60% through automated workflows and role-based access controls
- Performed complete SAP Customizing (SPRO/IMG) across MM, SD, and FI modules including document types, number ranges, organizational structure, and approval workflows
- Implemented Web Dynpro ABAP solution with multi-level approval logic, email notifications, and real-time leave balance tracking
- Optimized system performance through performance tuning and debugging of complex ABAP programs in productive SAP environments
Mandatory Internship & Working Student
- Built real-time monitoring dashboards for RF equipment using Python (Flask) and REST API integration
- Reduced troubleshooting time by 30% through automated dashboards and data visualization
SAP ABAP Developer
- Took full ownership of ABAP development for 5+ concurrent client projects focusing on MM and SD processes
- Delivered 20+ custom ABAP reports and ALV grids for MM and SD processes, improving reporting accuracy by 45%
- Implemented BAdI enhancements for purchase order validation, reducing PO errors by 30% and saving clients 15+ hours per week
- Performed application support and debugging for productive SAP systems, achieving 50% uptime SLA through rapid problem identification and resolution
Let's Build Something Reliable
Ready to discuss your SAP development needs or explore new opportunities? I'd love to hear from you and see how we can work together.
Contact Information
okpanachivictor0@gmail.com
Phone
017634488087
Location
Essen, Germany
Why Work With Me?
- Deep SAP ABAP expertise with proven track record
- Performance-focused development approach
- Strong communication and collaboration skills
- Commitment to clean, maintainable code
Send a Message
I typically respond within 24 hours. For urgent matters, feel free to call directly.