Samuel Ohana

Senior Programmer at Rapaport

Israel

About

Innovative Software Developer with global experience designing and delivering high-impact, scalable systems. Passionate about building modern platforms using C#, .NET Core, Web APIs, and microservices in AWS, Docker, and Kubernetes environments. Skilled in JavaScript, React, and Salesforce, with strong database expertise in SQL Server and PostgreSQL. I thrive on solving complex challenges, connecting systems end to end, and driving projects forward with agile development and a results-focused mindset.

Experience

  • Full Stack Senior Programmer at Rapaport
    Jan 2008 - Present ยท 18 yrs 7 mos

    Developed core features for the RapNet platform. Built components of a dynamic auction system handling bids, buyer limits, priorities, and combination bids. Developed modules for trading, invoicing, and cash advances, including interest and fee calculations. Built an electronic diamond exchange supporting live bid/ask pricing. Created optimized SQL queries and analytical reports based on historical diamond data to support the Rapaport Price List. Integrated internal systems with Salesforce, managing users, contracts, subscriptions, and API authorization processes.