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Sylvester EkpenyongSE
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Sylvester Ekpenyong

@sylvesterekpenyong

Payments Systems Analyst at Standard Bank aligning cross-border payment integrations with ISO 20022 and improving UAT validation.

Canada
Message

At Standard Bank, I plan enterprise payment integrations, map cross-border payment data flows to ISO 20022, and write the user stories and acceptance criteria used by development teams. I also validate backend APIs with Postman and SQL, and my work helped reduce manual system validation time by 20%.

At Momentum Ltd, I designed rules and backend logic for AML/KYC tools and sanctions screening, and fixed MT-to-MX translation errors that improved cross-border reconciliation accuracy by 30%. I brought legal, compliance, and development teams together in JAD sessions to address changing regulatory requirements.

Across roles at Absa Group, Business Data & Information Systems, and Nedbank, I’ve worked on SQL reporting, data migrations, requirements, and process improvement. I helped migrate 3 million customer profiles with zero downtime, replaced manual reporting with a tool that saved 20 hours weekly, and hold CBAP and PMP credentials.

Experience

Work history, roles, and key accomplishments

Standard Bank logoSB
Current

Payments Systems Analyst

Oct 2024 - Present (2 years)

Conducted requirement workshops and alignment sessions for enterprise payment integrations. Mapped data flows across cross-border payment rails aligned with ISO 20022 messaging, drafted user stories and acceptance criteria, and led UAT validation phases.

ML

Senior Payments Analyst

Momentum Ltd

Oct 2023 - Sep 2024 (11 months)

Designed rules and backend logic for automated AML/KYC compliance tools and sanctions screening pipelines. Investigated and fixed translation bugs in MT to MX messaging conversion, and collaborated with engineering leads to automate regulatory reporting.

Absa Group logoAG

Senior Solutions Analyst

Absa Group

Oct 2022 - Sep 2023 (11 months)

Wrote custom SQL scripts and built Power BI dashboards for liquidity management. Analyzed daily report processing, prepared historical transaction data for audits, and handled project discovery including business cases and scope.

BS

Consultant – Product Owner

Business Data & Information Systems

Jul 2021 - Sep 2022 (1 year 2 months)

Analyzed large enterprise datasets to extract trends for strategic decisions. Redesigned data collection processes, executed data migration plans with masking and cleaning, and owned the technical product backlog.

NC

Consultant – Senior Business Analyst

Nedbank / Cruze Control

Jun 2017 - Jun 2021 (4 years)

Ran business process re-engineering programs documenting workflows using BPMN. Gathered technical needs to draft functional and non-functional documents, and built UAT testing blueprints managing defect triage.

ESKOM Holdings PMT logoEP

Project Systems & Analysis

ESKOM Holdings PMT

Jan 2013 - Dec 2014 (1 year 11 months)

Worked on project systems and analysis within the project management team.

GP

Business Analyst / Technical Scoping

Gemcom Software PMO

Jan 2012 - Dec 2012 (11 months)

Performed business analysis and technical scoping within the project management office.

SASOL Technology PMO logoSP

Systems Analytics & Mapping

SASOL Technology PMO

Jan 2005 - Dec 2011 (6 years 11 months)

Engaged in systems analytics and mapping within the project management office.

Education

Degrees, certifications, and relevant coursework

SM

Six Sigma Business Process Management

Training, Business Process Management

2015 - 2016

Additional training in Six Sigma Business Process Management from 2015 to 2016.

University of South Africa logoUA

University of South Africa

Certificate, Knowledge Management

Certificate in Knowledge Management from the University of South Africa.

University of Johannesburg logoUJ

University of Johannesburg

BA (Hons), Information Management

BA (Hons) in Information Management from the University of Johannesburg.

BA

Business Data Analytics

Training, Business Data Analytics

2019 - 2020

Additional training in Business Data Analytics from 2019 to 2020.

University of Benin logoUB

University of Benin

National Diploma

National Diploma from the University of Benin.

Tech stack

Software and tools used professionally

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