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Nawaf Aljohani

Digital Integration Development Analyst | Saudi Central Bank (SAMA)

Enterprise integration developer based in Riyadh, Saudi Arabia. Specializing in middleware, mission-critical message flows, secure API gateways, and high-performance relational database interfaces across IBM ACE, IBM MQ, API Connect, and DataPower.

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Digital Integration Development Analyst

Saudi Central Bank (SAMA)
Dec 2025 — Present Riyadh, Saudi Arabia
  • Design, develop, and maintain enterprise integration message flows powering central bank financial infrastructure.
  • Architect high-throughput, low-latency transformations and routing using IBM App Connect Enterprise (ACE) and IBM MQ.
  • Implement secure API interfaces, authentication policies, and mediation layers across core banking systems.
  • Collaborate on national financial infrastructure initiatives requiring rigorous data accuracy and SLA guarantees.

Computer Programmer

Saudi Business Machines (SBM)
Dec 2024 — Dec 2025 Riyadh, Saudi Arabia
  • Engineered mission-critical enterprise integration solutions for premier government and financial sector clients.
  • Developed complex message transformation flows in IBM ACE using ESQL, Java, and graphical mapping.
  • Configured and published enterprise APIs on IBM API Connect with robust security, rate limiting, and analytics.
  • Designed and tuned Oracle SQL procedures, packages, and relational schemas supporting high-volume transactional workloads.

SAP Trainee

ARASCO
Jun 2023 — Aug 2023 Riyadh, Saudi Arabia
  • Assisted in enterprise ERP operations, integration testing, and supply-chain business process analysis.
  • Documented data flow mappings between SAP modules and internal reporting systems.
Enterprise Migration

SAP PI/PO Migration of 9 Core HR Services

End-to-end migration of legacy middleware integration flows to modern IBM App Connect Enterprise infrastructure.

Lead Integration Engineer IBM ACE · ESQL · SOAP/REST · SAP
  • Re-architected and rebuilt 9 mission-critical enterprise HR services from SAP PI/PO into modular ACE message flows.
  • Implemented rigorous schema validation, ESQL transformation logic, and seamless dual-run verification.
  • Eliminated legacy dependencies while maintaining 100% backward compatibility for all consuming systems.
Regulatory & Compliance

Fit & Proper Leadership Candidate Assessment Integration

Regulatory background screening and automated verification pipeline for leadership candidates across financial entities.

Integration Developer IBM ACE · API Connect · Oracle PL/SQL · Security
  • Architected automated validation workflows interconnecting regulatory portal submissions with backend vetting systems.
  • Engineered secure token-authenticated REST endpoints on IBM API Connect with audit logging.
  • Automated multi-source data aggregation reducing manual review turnarounds by over 70%.
Financial Data

National Financial Entities Loan Data Ingestion

High-throughput ingestion and validation engine aggregating loan and credit records across Saudi financial institutions.

Middleware Developer IBM MQ · ACE · Oracle Database · Batch Engine
  • Engineered persistent IBM MQ clustering and queue topologies handling batch transmission of encrypted credit portfolios.
  • Built multi-threaded ACE parsing flows capable of processing millions of structured records within SLA windows.
  • Implemented comprehensive dead-letter and automated reconciliation routines ensuring zero message loss.
Government G2G

Ministry of Justice, Public Prosecution & State Security Integrations

Highly secure government-to-government integration channels for real-time legal inquiries and execution orders.

Integration Specialist IBM DataPower · ACE · mTLS · XML/JSON
  • Constructed hardened mutual-TLS edge policies and digital signature verification on IBM DataPower Gateway.
  • Developed bi-directional synchronous and asynchronous message flows between judicial backends and banking systems.
  • Enforced strict non-repudiation, payload encryption, and government compliance standards.
Commercial Registry

Ministry of Commerce Real-Time API Suite

Enterprise API gateway services validating commercial registries, authorized signatories, and corporate entity statuses.

API Developer IBM API Connect · DataPower · REST APIs
  • Published low-latency, rate-limited OpenAPI interfaces on IBM API Connect for institutional consumers.
  • Implemented intelligent caching and fault-tolerant fallback layers to guarantee 99.99% availability during peak traffic.
AML / Screening

LSEG World-Check One Screening Application

Automated Anti-Money Laundering (AML) and Politically Exposed Persons (PEP) screening engine.

Full-Stack Integration Developer World-Check One API · Python · Node.js · Oracle
  • Integrated London Stock Exchange Group (LSEG) World-Check One REST API with custom HMAC-SHA256 authentication.
  • Engineered fuzzy-name matching filters and automated risk-scoring pipelines for corporate and individual vetting.
  • Created audit-trail reporting modules with persistent historical decision logging in Oracle database.

Technical Competencies

02 // STACK

Enterprise Integration & Middleware

Core toolset utilized daily in production banking and government middleware.

IBM App Connect Enterprise (ACE) & ESQL
Message flows, high-concurrency routing, transformation nodes, and database compute routines.
IBM API Connect (APIC)
API lifecycle management, OpenAPI specifications, product publishing, and security policies.
IBM MQ
Queue managers, transmission channels, clustering, and dead-letter queue architectures.
IBM DataPower Gateway
Edge appliance security, OAuth2 validation, TLS mutual authentication, and traffic shaping.

Databases & Systems

Oracle SQL & PL/SQL: Stored procedures, functions, high-load indexing, and transactions.
Databases: Microsoft SQL Server, PostgreSQL, SQLite, MongoDB.
Operating Systems: Red Hat Enterprise Linux (RHEL 8/9), Unix shell scripting.
Containers & Cloud: Podman, Docker, Red Hat OpenShift.

Languages & Tooling

Languages: SQL, ESQL, Python, Dart, Java, JavaScript, TypeScript, Go.
Protocols & Formats: REST, SOAP/XML, JSON, ISO 20022, SFTP, Kafka.
DevOps & Tools: Azure DevOps, Jira, Git version control.
Compliance APIs: LSEG World-Check One API, Government G2G endpoints.

Bachelor of Science in Computer Science

King Fahd University of Petroleum & Minerals (KFUPM)
2019 — 2024 Dhahran, Saudi Arabia
Third Honor Graduate Graduated June 2024

Comprehensive computer science coursework covering distributed systems, software engineering, algorithms, database architecture, network protocols, and enterprise software engineering.

Red Hat

Red Hat Certified Specialist in Containers

Issued Jul 2025 · Valid through Jul 2028 · Exam EX188
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IBM

IBM MQ Developer Essentials

Issued Jan 23, 2026
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IBM SkillsBuild

Artificial Intelligence Fundamentals with Capstone Project

Issued Mar 2025
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Red Hat

Red Hat Certified System Administrator (RHCSA)

Issued Mar 2025 · Valid through Jul 2028 · Cert ID 250-027-000
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