AI software engineering
Understand AI. Design the system.
RAG, LLM internals, and agent architectures: understanding the models and mechanisms behind AI solutions, and how they fit into a wider software system.
Explore my AI expertise ↗Sameh Adel · Cairo, Egypt
Software engineering.
AI. Architecture. Delivery.
I’m a Senior Software Engineer connecting AI solution design, software architecture, and hands-on implementation.
My expertise spans retrieval-augmented generation (RAG), LLM internals, and how AI agents work. I connect that understanding with software engineering to design solutions around real business needs.
Currently
VOIS / Vodafone
Software engineering & AI enablementBanking
Warba Bank
Cashback services & modernizationPayments
Fawry
Payroll & payment integrations01 — Engineering expertise
Design the solution.
Build it with intent.
Solution architecture
Make the parts work together.
Service design, integration, asynchronous communication, and architecture modernization—connecting business needs to a maintainable system.
Explore a system design ↗Software delivery
Carry the design into production.
Hands-on implementation across services and interfaces, with performance optimization, integration testing, and mentoring along the way.
Explore delivery experience ↗AI expertise
From model internals
to AI solutions.
My focus is understanding how language models, retrieval, and agents work together—and using that understanding to shape an AI solution’s architecture.
RAG
Connect models to knowledge.
Retrieval-augmented generation: how information is retrieved, assembled into context, and used to ground a model’s response.
LLM internals
Understand model behavior.
The mechanisms behind large language models, how they process context and generate responses, and what their limitations mean for solution design.
AI agents
Design beyond a single response.
How agents combine models, tools, context, and control flow to carry out tasks—and how those components fit into a software architecture.
02 — Selected work
Systems with a purpose.
Warba Bank · Featured project
From spending activity
to customer cashback.
Built a cashback microservice from scratch, then improved its performance through database enhancements and code optimization.
Built. Optimized. Modernized.Service ownership alongside the refactoring of four adjacent services.
Explore the case study ↗Simplified service flow
Customer spending events
Kafka event stream
Cashback service Java 17 / Spring Boot
SQL ServerDurable storage
RedisFast reads
A high-level view of the documented components.
Project 02
Payout
A payroll platform used by companies to register employees and disburse monthly salaries through Fawry's ecosystem.
JavaSpring BootSpring Security
Explore project Project 03Udacity Payment Gateway
A payment gateway within Fawry's ecosystem enabling Udacity to pay Egyptian mentors and staff their monthly salaries.
JavaSpring BootSpring Security
Explore project 03 — Experience
From solution design
to working software.
At Vodafone, my work includes an AI Enabler initiative and service development. At Warba Bank and Fawry, I designed and implemented services, modernized existing systems, and delivered integrations across applications.
Explore my experience ↗04 — Selected writing
Notes from the code.
Optimizing JPA Fetch Strategies: Navigating Performance Pitfalls and Memory Overheads
A look at JPA's eager and lazy fetch strategies, the Cartesian Product and n+1 selects problems they cause, and how Hibernate's @BatchSize annotation helps strike a balance between the two.
Crafting Efficient and Effective hashCode Method in Java
A practical guide to writing a correct, high-performance hashCode() in Java — covering the equals/hashCode contract, a step-by-step implementation pattern, and caching tips for immutable classes.
Java's Object.equals(): The Overlooked Function That Can Make or Break Your Code
Why overriding Object.equals() properly matters, the reflexive/symmetric/transitive/consistent contract behind it, and how inheritance can quietly break Symmetry and Transitivity.