Renier De Villiers / Coded Welder

• Company Overview: Ventia - a major infrastructure services company in Aus/NZ, delivering projects from $250K to $4B+ across defense, transport, energy, and utilities.
• Lead a team of 6 welders and 2 trade assistants on a high-spec scientific project, overseeing task planning, workflow, and safety compliance.
• Delivered precision fabrication and installation of stainless-steel mesh panels, doors, and cooling system piping (1”–4”).
• Performed critical RFI-preventing weld repairs on observatory containers — essential to data integrity during operations.
• Applied advanced passivization techniques on stainless welds for corrosion resistance and extended durability.
• Executed high-standard GTAW, MMAW, and gasless MIG welding using 316L, E71T-GS, and E7018 consumables.
• ACHIEVEMENTS
• Promoted to Leading Hand for top-tier technical output and consistent team leadership.
• Maintained 98.5% weld pass rate zero rework required on core components.

• Company Overview: Alcoa - Global aluminum producer with $11.9B revenue and $560M in project spend (2024). Major assets in Australia, Spain, and 9 other countries.
• Fabricated and welded digesters, filtration, washers tanks, and pipe spools under AS1554-1 and AS4041 with zero NCRs.
• Delivered high-integrity welds using MMAW, GTAW, and FCAW with Kobe and Esab consumables.
• Conducted daily toolbox talks and ensured strict adherence to SWMS, JHA, Hot Work, and Take 5 procedures.
• ACHIEVEMENTS
• Boosted productivity 12% by recommending and deploying FCAW (E71-T1) over E7024 iron powder rods.
• Delivered major tank floor installation 4 weeks ahead of deadline with zero LTIs.

Repaired and fabricated tanks, hoppers, chutes, silos, and mining pipework to spec.

• Ensured top-quality joints with precise fit-up and tack removal pre-weld.
• Interpreted complex fabrication drawings to execute jobs efficiently and safely.

• Installed structural frames and boiler pipework using advanced GTAW and MMAW techniques.
• Welded 1¼” chrome alloy with ER80S-D2 and E7018 — achieving flawless welds.
• Hit a 100% X-ray pass rate with no rework, meeting all project QA/QC standards.