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Krahoz
@esmark12
Seasoned IBMi Developer
Poland
English
About me
A seasoned IBMi Developer bridging the gap between the reliability of the AS400 and the power of the modern AI era. With over 24 years of experience—ranging from System/36 to modern Free-Format RPG—I specialize in transforming 'green screen' legacy environments into high-performance, web-enabled systems. I don't just maintain systems; I modernize them. I am a firm believer that the AS400 belongs in today's tech stack. I’ve personally pioneered REST API integrations to connect IBM i with external ecosystems and developed custom solutions for EBCDIC to UTF-8 conversion.
Skills
Krahoz
Offline •
Average response time: 1 hour
See my services
Programming & Tech
I will enhance create program in as400 rpgle rpg clle clp sqlrpgle rest
API & Integrations
I will setup rest solution to your ibmi as400 system
Portfolio
Work experience
Technical Manager
Volvo Cars
Jul 2023 - Present • 2 yrs 11 mos
• Spearheaded Volvo Cars warranty team's deployment on API’s, enhancing system reliability and customer satisfaction. • Pioneered RESTful API solutions with robust IBMi backend integration, optimizing data interchange. • Using Azure Datalake, MQ, websockets and local VIDB. • Excelled in generating dynamic XLS reports through mastery of POI API and Java programming. • Engaging the team into modernization using VSCode from the native green screen or RDi. • Introduced how GEN AI can be leveraged on the IBMi ecosystem.
AS400 Developer/Administrator
Volvo Group
Sep 2015 - May 2023 • 7 yrs 8 mos
• Developed and enhanced programs using RPG free-format, RPG ILE, CLLE, SQL, JAVA using RDi. • Implemented REST API solutions using JSON for GET, POST, and DELETE methods, enabling third-party application access to IBMi databases. • Integrated SSL web security for legacy applications and automated SMS alerts for job delays. • Managed the full SDLC, from technical specifications and system design to unit testing and implementation oversight.
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leadbotic
United States
Esmark was a pleasure to work with, he communicates very well. He completed the job on time, and to the specs we provided him. I highly recommend Esmark!
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