Herman Heunis

Full Stack Developer at eDataleaf

Sole proprietorship building REST API web applications. Responsible for front-end design, back-end logic via appropriate APIs, and database setup. Experience with Apache server deployments using Laravel and PHP, and relational databases (MySQL, SQLite, PostgreSQL). Android app development with REST backends, including Room, Kotlin Flows, RxJava, Bluetooth, NFC, barcode/camera APIs, DataWedge integration, and ESC/POS printing. Notable apps include Orodata Productivity, Orodata Date Palm Actions, OranjeRivier Oesbeskerming, and Klokslag.

Full Stack Developer and Bookkeeper at OranjeRivier Oesbeskerming

Full Stack Developer and Bookkeeper in Retail and Wholesale sector. Conceptualized digestible graph reports for pest counts; developed orob.co.za web application; digitized agrochemical and fertilizer programs. Gained extensive Python, MS Excel, and Excel VBA experience; created Pivot Table dashboards and processed data from CSV/HTML/SQL. Updated Android app with Kotlin Flows, Jetpack Compose, and API level 35 support; migrated accounting data from Pastel Partner to Xero and managed Xero accounts and custom reports.

Administer Lease Portfolio at JJ Smit

Draft lease contracts, collect rent and perform bookkeeping.

Contractor at Sundried Foods Pty Ltd

Managed an MS Excel VBA-based fresh grape intake program at a seasonal raisin drying facility; expanded system functionality; managed payroll system and administered communications with producers and suppliers; bookkeeping and administrative duties.