Middleware Architecture Professional
Building secure banking APIs, microservices, and enterprise integrations.
I’m Sayed Hossain Khan, a Software Engineer and API Middleware Specialist working on mission-critical digital banking platforms, core banking integrations, and high-performance middleware services.
Spring BootESBREST APIsOracleCore Banking
About
Software engineer focused on dependable digital banking infrastructure.
My work connects business-critical banking channels with core systems through clean APIs, resilient middleware, and scalable microservice architecture. I have contributed to digital banking initiatives including Citytouch K2, City Optima, AMEX Tap & Pay, Digital Corner, Enterprise Middleware Services, AML, utility bill collection, trade finance, and core banking platforms.
I combine engineering discipline with data awareness, having a Computer Science background and a Master’s in Applied Statistics and Data Science. This helps me design solutions that are not only functional, but also measurable, reliable, and ready for enterprise operations.
Snapshot
Career profile at a glance
A quick infographic view of experience, banking exposure, and technology coverage.
Expertise
What I build and optimize
Enterprise-focused services aligned with modern banking and fintech platforms.
API Middleware Engineering
REST APIs, ESB integration, service orchestration, channel-to-core connectivity, and secure middleware layers.
Microservices & Backend
Spring Boot services, modular backend design, integration-ready endpoints, and scalable enterprise architecture.
Core Banking Solutions
Finacle/Ababil ecosystem knowledge, CBS workflows, Islamic banking modules, AML, trade finance, and utility systems.
Technical Stack
Skill coverage across backend, frontend, database, data, and enterprise tools.
The chart is organized from CV experience and technology exposure.
92%Backend & APIs
86%Database
78%Frontend
72%Data & BI
JavaPythonJavaScriptRC++C#SASMATLABPHPSpring BootNode.jsAngularReactLaravelDjangoASP.NETOracleMySQLMongoDBFirebasePostgreSQLLinuxGitPower BITableau
Projects
Selected enterprise and software projects
Grouped by industry domain to present the work more clearly and professionally.
Digital Banking Platform
City Bank PLC
Enterprise Middleware & Digital Banking Initiatives
Contributed to core digital banking and API middleware initiatives such as Citytouch K2, City Optima, CBS, Digital Onboarding, AMEX Tap & Pay, EDEAL, LOS, Great Wall, and customer segmentation.
ERA Infotech
Core Banking & Islamic Banking System
Worked on Spring Boot and Angular-based CBS modules, with exposure to Islamic banking, AML, utility, trade finance, salary and pay-order workflows.
Matrix Business Development
E-commerce & Professional Websites
Built and supported Matrix Bazar e-commerce platform, professional website solutions, content operations, and email automation.
Featured Work
Project highlights carousel
Browse selected work areas across middleware, core banking, compliance, analytics, and web platforms.
Enterprise Middleware Services
API orchestration, ESB connectivity, secure middleware layers, and service integration for digital banking channels.
Citytouch K2, City Optima & Digital Onboarding
Mission-critical platform exposure across onboarding journeys, channel services, and core banking integrations.
AMEX Tap & Pay / EDEAL
Payment-oriented banking solutions with focus on reliable APIs, transaction flows, and backend service coordination.
Core Banking, AML & Utility Modules
Core banking modules covering Islamic banking, AML, pay-order, salary management, tax return, utility bill, and trade finance.
Matrix Bazar & Web Automation
E-commerce, professional website delivery, content development, WordPress customization, and email automation support.
Project Distribution
Domain coverage from CV projects
Most experience is concentrated in banking systems, middleware, enterprise integration, compliance, and financial applications.
Banking & Middleware86%
Core Banking & Compliance74%
Data / Analytics52%
Web & E-commerce45%
Experience
Professional journey
From content and web development to core banking and API middleware architecture.
Officer — API Middleware, Microservices, Core Banking
Working with Spring Boot, React, Python, and ESB for mission-critical digital banking and middleware services.
Associate Software Engineer — Core Banking
Delivered core banking, Islamic banking, AML, utility, and trade finance modules using Angular, Spring Boot, Oracle Apex, SQL/PLSQL, and Forms.
Junior IT Officer & Content Developer
Supported e-commerce, professional website, WordPress, PHP, JavaScript, and digital content development initiatives.
Education & Recognition
Academic foundation and research exposure
Master’s in Applied Statistics and Data Science
Jahangirnagar University · CGPA 3.75 · 2023
B.Sc. in Computer Science and Engineering
Ahsanullah University of Science and Technology · CGPA 3.353/4.00 · 2019
GAN Research Publication
Cartoon-to-real image translation using GANs; accepted at ICIET and achieved 1st runner-up at MindSparks 2019.
Java CertificationAML, KYC & ComplianceData Science with PythonFinancial Management EssentialsIELTS 7.5
Contact
Need a reliable API, middleware, or banking-tech engineer?
Let’s discuss enterprise integration, secure backend services, data-driven banking features, or professional web systems.
- sayedhossainkhan36@gmail.com
- +880 1684 714853
- Mohammadpur, Dhaka, Bangladesh
- LinkedIn Profile
- GitHub: SHKShuvo