Oluwaseyi>

A photo of Oluwaseyi Ayeni

I solve problems>

My name is Seyi Ayobami Ayeni, written in full as Olúwaṣèyí Ayọ̀bámi Elijah Ayẹni. My primary interest is in solving problems, one solution at a time. Professionally, I am a Data Engineer, AI/ML Engineer, Data Analyst, Cloud Specialist, Web Developer, and Banker (private and regulatory). I am also a mentor, coach, data evangelist, and lifelong learner. I believe in fostering an environment of psychological safety, transparent and open communication, creating and nurturing conditions necessary for people to thrive. To send a direct message to me, please click the LinkedIn icon at the bottom of the page. Also click the GitHub icon to see the rest of my projects.

Projects>

Experience>

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Columbia University School of Professional Studies

    New York, New York, United States

  1. Senior Data Intelligence Specialist

    Contract

    January 2025 - Present

    • Development of a solution that transforms prospects and applicants data for upload into Slate application.
    • Research on latest cutting edge technologies to apply to workflows and processes.
    • Design and development of governance processes for data solutions.
    • Analysis of prospects and applicants data.

  2. Email Marketing Intern

    Internship

    September 2024 - December 2024

    • Analysis of prospect and applicant data to discover patterns and insights for design of targeted email campaigns.
    • Preparation of source list for import to Slate.
    • Resolution of email campaign data import issues [workaround, quick fix, root cause identification and permanent resolution].
    • Design of a solution to transform source data for import to Slate.

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Central Bank of Nigeria

    Full-time

    Abuja, F.C.T., Nigeria

  1. Senior Data Engineer | Scientist | Analyst

    February 2023 — September 2024

    • Developed a real-time fraud detection system with Kafka.
    • Developed a data pipeline with Apache NiFi for transforming and moving data for World Bank intervention fund disbursement.
    • Deployed a document store solution for upload of silo data from all departments in Central Bank of Nigeria (CBN) for pipelining into the Enterprise Data Lake from where Data Warehouses and visualizations are built for user consumption.
    • Mined valuable executive-level insights from Nigeria’s CBDC database to improve decision-making capabilities of the bank.
    • Redesigned the architecture for Cross border Financial Management Information System to optimize data flow and availability.

  2. Payments & Securities Settlement Systems Specialist

    August 2017 — February 2023

    • Built capacity and increased efficiency and effectiveness of 1st and 2nd level support for payments and securities settlement systems by 300% through knowledge transfer sessions and coaching of colleagues in several departments.
    • Mentored colleagues for capacity increase from 0% to 100% to ensure business continuity.
    • Reduced escalation of 1st level issues from 90% to 10% by training and coaching 1st level support team.
    • Secured messaging interfaces of the Real-Time Gross Settlement (RTGS) system and S4 thereby completely mitigating risk of data compromise and eradicating cost of third-party implementation.
    • Cut down escalation of issues from branches to head office by 45% by assisting support staff at all branches through knowledge transfer sessions to enhance support capacity.
    • Trained employees of financial market organizations on operations of RTGS system and S4 greatly reducing escalation of 25% of issues to user departments.
    • Developed a solution to automate distribution of interest process to investors replacing manual process completely, eliminated computation error, and delivered at least 500% improvement in turnaround time.
    • Augmented quality unit, system, user acceptance tests from 20% to 95% by deploying a tool to replicate production environment state to deliver accurate results.
    • Prevented potential loss of income of about 161 million Naira (about $400,000) by spooling data to recover income.
    • Designed a financial management information system for national cross border transactions, resulting in about 600% cost savings in maintenance and license over a period of 5 years.

  3. Payments & Securities Settlement Systems Application/Database Administrator

    November 2016 - July 2017

    • Managed RTGS system application services.
    • Managed Scripless Securities Settlement System (S4) application services.
    • Managed the core banking application services.
    • Managed the processing of interbank clearing instructions.

  4. Assistant Service Center Specialist

    January 2014 — October 2016

    • First level incident and problem management of RTGS system issues.
    • First level incident and problem management of Scripless Securities Settlement System issues.
    • Request fulfillment.
    • Resolved other user complaints and issues.

  5. Assistant Network Security Specialist

    April 2013 — December 2013

    • Scanned and analyzed monthly and quarterly vulnerability reports.
    • Configured and set up RTGS/S4 users and accounts.

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Tycoons Project

    Full-time

    Ikeja, Lagos State, Nigeria

    Project Manager

    January 2013 - March 2013

    • Facilitated PMP exam preparatory training programs.
    • Sold Project Management Professional credential training to prospective clients.
    • Developed facilitation materials for new programs.

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Freelance

    Self-employed

    Lagos State, Nigeria

    Project Management Training Facilitator

    September 2012 - December 2012

    • Trained candidates for the Project Management Professional (PMP) exam.
    • Reviewed training materials.

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Netmetric Infosolutions Pvt. Ltd.

    Internship

    Hyderabad, Andhra Pradesh, India

    Network Security Administration Intern

    June 2012 - August 2012

    • Initialized the Cisco Adaptive Security Appliance [ASA].
    • Configured RIPv1&2, OSPF and EIGRP routing protocols.
    • Configured dynamic NAT.
    • Configured static NAT and PAT.
    • Configured dynamic policy NAT.
    • Configured static policy NAT and PAT.
    • Configured object grouping.
    • Configured application-aware inspection, URL filtering and malicious active code filtering.
    • Configured firewall contexts, active/standby and active/active failover.
    • Configured VPN (site-to-site [ASA to ASA, router to router and ASA to router], Remote Access [EzVPN and SSL VPN], GET VPN and DMVPN).
    • Configured Modular Policy Framework (MPF).
    • Configured Quality of Service [QoS].
    • Configured Cisco IOS Firewall Auth Proxy.
    • Configured Authentication Authorization & Accounting [AAA] via CLI & Cisco Secure ACS.
    • Configured Routing Protocol Security & Zone-based Firewall.
    • Configured Control Plane & Management Plane Security.
    • Configured Port Security (with Data & Voice VLANs).
    • Mitigated DHCP Snooping, DoS, HTTP, Fraggle, TCP SYN Flood & Smurf Attacks.
    • Configured VLAN Access Maps.
    • Administered the Intrusion Prevention System [IPS] via Cisco IPS Device Manager [IDM].
    • Troubleshot issues encountered with the Cisco ASA.

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FinBank Plc

    Full-time

  1. e-Settlement Officer

    Victoria Island, Lagos State, Nigeria

    February 2011 — May 2012

    • Represented the unit on e-Business projects.
    • Settled interbank transactions (advised by Interswitch via NIBSS).
    • Settled interbank transactions (advised by eTranzact via NIBSS).
    • Settled NIBSS Instant Payment interbank transactions (advised by NIBSS).
    • Settled Interswitch POS, Web & 3 Line Street Banking merchants.
    • Treated disputes arising from NOU transactions (via Arbiter).
    • Resolved e-channels transaction issues (ATM card, ATM/Internet Quickteller, POS & Web).
    • Treated trapped transactions.
    • Reconciled internal GLs.

  2. Central Clearing Officer

    Victoria Island, Lagos State, Nigeria

    November 2010 — February 2011

    • Reviewed inward clearing cheques.
    • Generated & sent confirmation for inward clearing cheques.
    • Processed outward clearing cheques.
    • Processed outward NEFT instructions.
    • Generated the Bank’s net clearing position.

  3. Account Opening Officer

    Victoria Island, Lagos State, Nigeria

    September 2010 - November 2010

    • Opened new accounts (savings, current and domiciliary) for customers according to requirements.

  4. MICR Officer

    Bauchi, Bauchi State, Nigeria

    November 2008 — September 2010

    • Pre-encoded financial instruments.
    • Generated weekly and monthly activity reports.
    • Generated weekly cheque stock level reports.
    • Reconciled MICR GL accounts.

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Salem Group of Schools

    Full-time

    Dutse, Jigawa State, Nigeria

    Computer Science Teacher

    September 2007 - April 2008

    • Taught Computer Science at junior and senior secondary levels.

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Dutse Computer Skills Acquisition Center

    Full-time

    Dutse, Jigawa State, Nigeria

    Computer Science Instructor

    September 2006 - September 2007

    • Taught the use of computer, the internet, and Microsoft Office Programs.

Education>

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Columbia University

    Master of Science - MS, Applied Analytics

    January 2023 - December 2024

    Courses:
    • Managing Data
    • Research Design
    • Cloud Computing
    • Storytelling with Data
    • Strategy and Analytics
    • Data Science Consulting
    • Python for Data Analysis
    • Analytics and Leading Change
    • Applied Text & Natural Language Analytics
    • Applied Analytics in Organizational Context
    • Applied Analytics Frameworks and Methods I
    • Applied Analytics Frameworks and Methods II
    Description:
    • Gain exposure to analytical tools and methods to address a wide range of business challenges.
    • Learn to recognize opportunities to impact an organization’s strategic direction through the implementation of analytics processes.
    • Learn to source, store, and model the internal and external data needed to answer questions and produce value.
    • Learn to incorporate sophisticated data analytical techniques, approaches, and models to affect outcomes and decision-making.
    • Develop the management and analytical skills necessary to implement change based on data-driven decisions.
    A well-rounded approach covering the required soft (leadership) and hard (technical) skills you will need to advance in your career.
    An innovative curriculum featuring both Management and Technical Cores that will equip you with the tools to analyze data, produce actionable information, and create an analytical culture within an organization.

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MIT Professional Education

    Applied Data Science Program: Leveraging AI for Effective Decision-Making, Data Science

    November 2023 - February 2024

    Projects:
    •SVHN Digit Recognition (Deep Learning/Computer Vision project using ANNs and CNNs).
    •Facial Emotion Recognition (Deep Learning/Computer Vision project using CNNs, transfer learning architectures like VGG16, ResNet v2, and Efficient Net).
    Description:
    Theory and practical application of supervised and unsupervised learning, time-series analysis, neural networks, recommendation engines, regression, and computer vision, to name a few.

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Udacity

    AWS AI Programming with Python Nanodegree, Artificial Intelligence

    October 2024 - January 2025

    Courses:
    • Introduction to Python.
    • Anaconda, Jupyter Notebook, NumPy, Pandas & Matplotlib.
    • Linear Algebra Essentials.
    • Calculus Essentials.
    • Neural Networks.
    Description:
    • Utilize programming tools like Python, NumPy, and PyTorch.
    • Understand Calculus and linear algebra applications.
    • Perform key techniques of neural networks, including gradient descent and backpropagation.

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Harvard Business School Online

    Certificate of Specialization in Leadership and Management

    June 2022

    Courses:
    • Strategy Execution.
    • Leadership Principles.
    • Management Essentials.

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Harvard Business School Online

    Certificate of Specialization in Strategy

    February 2022

    Courses:
    • CORe.
    • Global Business.
    • Strategy Execution.

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Harvard Business School Online

    CORe Credential of Readiness

    July 2021

    Description:
    CORe (Credential of Readiness) is a 150-hour certificate program on the fundamentals of business from Harvard Business School. CORe is comprised of three courses—Business Analytics, Economics for Managers, and Financial Accounting—developed by leading Harvard Business School faculty and delivered in an active learning environment based on the HBS signature case-based learning model.

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Harvard Business School Online

    Certificate in Leadership Principles

    March 2022

    Description:
    Leadership Principles is a 6-week, 25-hour online certificate program from Harvard Business School. Leadership Principles is designed to help individuals thrive as leaders, unleash the capabilities of others, and cultivate high-performing teams. This course leverages self-assessments, 360° feedback from colleagues, and the perspectives of fellow learners to enable participants to build greater self-awareness and enhance the versatility of their leadership style and approach. The program was developed by leading Harvard Business School faculty and is delivered in an active learning environment based on the HBS signature case-based learning model.

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Harvard Business School Online

    Certificate in Management Essentials

    May 2022

    Description:
    Management Essentials is an 8-week, 35-hour online certificate program from Harvard Business School. Management Essentials takes a distinctive, hands-on approach to management. Participants in this course learn to identify, understand, design, and shape critical organizational and managerial processes as a means of getting the work done. The course focuses on four of the most essential processes for managers: decision-making, implementation, learning, and change. Participants work through real-world challenges faced by managers across a variety of industries, and come away with tangible tools and techniques that they can readily apply in their organizations to create higher quality, more efficient work.

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Harvard Business School Online

    Certificate in Strategy Execution

    December 2021

    Description:
    Strategy Execution is an eight-week, 40-45 hour online certification program from Harvard Business School. Strategy Execution teaches a comprehensive framework for implementing strategy, covering topics including resource allocation and job design, performance measurement, risk management, and strategies for detecting and adapting to change. Participants gain the knowledge and skills needed to execute strategy successfully. Strategy Execution was developed by leading Harvard Business School faculty and is delivered in an active learning environment based on the HBS signature case-based learning method.

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Harvard Business School Online

    Certificate in Global Business

    September 2021

    Description:
    Global Business is a 4-week, 24-hour online certificate program from Harvard Business School. Global Business provides a grounding in the economic, political, and social factors driving global change to help participants assess opportunities, manage risk, and create and capture value for their organization. The program was developed by leading Harvard Business School faculty and is delivered in an active learning environment based on the HBS signature case-based learning model.

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University of Ilorin

    BSc Honors, Computer Science

    June 2002 - December 2005

    Courses:
    • Algorithms.
    • Linear Algebra.
    • Artificial Intelligence.
    • Computer Architecture.
    • Computer Programming.
    • Structured Programming.
    • Business Data Processing.
    • Data Structure and Algorithm.
    • Elementary Differential Equation.
    • Database Design and Processing.

Certifications>

Skills>

Activities>

Volunteering: Organization: Columbia University School of Professional Studies
• Role: International Student Peer Mentor
• Period: August 2024 - Present

Organization: PMINYC Chapter
• Role: Mentor
• Period: October 2023 - Present

Organization: PMINYC Chapter
• Role: Program Volunteer
• Period: March 2023 - Present

Organization: Project Management Institute
• Role: PMI Infinity Testing Opportunity
• Period: May 2024 - December 2024

Music: • Playing the piano (Please find below photos of my first piano, an Essex EUP-108C)
• Playing my clarinet
• Playing my flute

a photo of an essex piano. a photo of an essex piano. a photo of an essex piano.
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