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habtamu bitew

@habtamubitew

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Full Stack Developer at Etta Solutions Plc building POS payment integrations with ISO 8583 and SPDH.

Ethiopia

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What I'm looking for

I'm open to local and remote opportunities.

At Etta Solutions Plc, I build POS payment integration systems using ISO 8583 and the SPDH banking protocol. I implement Java TCP/IP communication between POS terminals and payment switches, including authorization, reversal, and settlement flows.

As a Software Developer Intern at Bahir Dar University, I developed a Clearance Management System and built a Library Management System with Laravel and MySQL. In independent security research, I conducted authorized assessments and documented SQL injection vulnerabilities across seven systems, with mitigation recommendations.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Developer

Current

Etta Solutions Plc

Jan 2025 - Present (1 year 9 months)

Building POS payment integration systems using ISO 8583 financial messaging and SPDH banking protocol. Implementing Java TCP/IP socket communication between POS terminals and payment switches, handling authorization, reversal, and settlement message flows.

Java ISO 8583 SPDH TCP Sockets Payment Systems

Independent Security Researcher

Self-Directed

Jan 2024 - Jan 2025 (1 year)

Conducted authorized vulnerability assessments on controlled web applications. Identified and documented SQL injection vulnerabilities across 7 systems and provided mitigation strategies.

Security Testing SQL Injection Vulnerability Assessment

Software Developer Intern

Bahir Dar University

Apr 2024 - Jul 2024 (3 months)

Developed the Clearance Management System digitizing staff and student offboarding workflows. Built Library Management System with Laravel and MySQL, gathered requirements from stakeholders, and delivered iterative releases.

Laravel PHP MySQL HTML5 CSS

Education

Degrees, certifications, and relevant coursework

Wachemo University

Bachelor of Science, Software Engineering

2020 - 2024

Bachelor of Science in Software Engineering from Wachemo University, with coursework in data structures, algorithms, operating systems, networking, web development, and mobile development.