Open to opportunities

Mosa Sethosa

@mosasethosa

Message

I build Java payment APIs, cloud data pipelines, and reliable banking services.

South Africa

Message

What I'm looking for

I'm looking to build reliable Java and cloud-based products where I can work on APIs, data pipelines, testing, and scalable systems while continuing to grow in AWS and modern software engineering.

I'm building international payment services at First National Bank, including ISO 20022 transaction flows, REST/JSON API migrations, bulk payments, and regulatory reporting for cross-border markets.

Previously at BMW IT Hub, I developed Spring Boot APIs, maintained cloud-hosted PostgreSQL data, and built AWS and Python pipelines that turned automotive data into business insights.

I'm an Honours Computer Science graduate, published NLP researcher, and AWS grant recipient who continues to deepen my Java, cloud, testing, and software engineering practice.

Experience

Work history, roles, and key accomplishments

Current

Java Developer

Current

First National Bank

May 2025 - Present (1 year 4 months)

Incorporated ISO 20022 messaging standards for foreign exchange transactions, migrated legacy APIs from SOAP/XML to REST/JSON, and enhanced bulk payment processing. Built regulatory reporting for diplomatic clients and supported cross-border payments across Southern African markets.

Java ISO 20022 REST JSON SOAP XML SQL Spring Boot PostgreSQL Unit Testing Integration Testing CI CD Agile

Education

Degrees, certifications, and relevant coursework

University of Pretoria

Bachelor of Science Honours, Computer Science

2023 - 2025

Activities and societies: Research Group: Data Science for Social Impact

Pursued an Honours degree in Computer Science with a research focus on hate speech detection in isiZulu. Conducted research within the Data Science for Social Impact group and completed modules in software education, applied data science, and natural language processing.

University of Johannesburg

Bachelor of Science, Computer Science and Informatics

2019 - 2021

Activities and societies: Final Year Project: Backend Developer and Tester

Completed a Bachelor of Science with majors in Computer Science and Informatics, focusing on software engineering. Collaborated on a final year project as a backend developer and tester.