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Hem K.
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Hem K.

Professional Structural ,CAD, Estimator (MTO) Engineer | RC and Steel

I am a Professional Structural Engineer specializing in the design, analysis, and detailing of heavy industrial steel structures and telecommunications infrastructure. With extensive experience delivering US-based projects, I ensure all final outputs strictly comply with AISC, ASCE 7, ACI, and TIA-222 standards. My expertise bridges the gap between analytical engineering and real-world constructability. Beyond structural calculations, I deliver fabrication-ready AutoCAD and structural detailing packages designed to minimize field errors, optimize material usage, and streamline both fabrication and installation. Core Competencies Heavy Industrial Engineering • Steel PEB structures • Pipe racks, equipment support frames, access platforms, and secondary steel • Dynamic, wind, and seismic analysis for industrial facilities • Steel connection design in accordance with AISC 360 and AISC 341 Telecom Infrastructure • Self-supporting towers, guyed masts, and monopoles • Tower reinforcing, modification design, and foundation checks • Compliance with latest TIA-222 requirements Detailed Structural Engineering • RC foundation design (spread footings, mats, drilled shafts, pile caps) • Structural steel and RC detailing to fabrication level • Development of structural calculation packages for permitting and submittals Material Takeoff & Estimation (Steel + RC) • Precise material takeoff (MTO) for structural steel, bolts, plates, welds, grating, handrails, concrete, rebar, and embedded items • Cost estimation for steel structures and RC components, supporting bidding, procurement, and budgeting • Quantification modeling that aligns drawings, specifications, and site conditions • Optimization of material usage to reduce waste and improve constructibility Documentation & Deliverables • High-accuracy AutoCAD shop drawings, fabrication details, and layout plans • Clear, comprehensive structural reports and calculation books • Bill of materials (BOM), MTO tables, and construction packages Software Expertise • Structural Analysis: ETABS, SAP2000, STAAD.Pro, MS Tower • Drafting & Detailing: AutoCAD (advanced), Bluebeam • Engineering Automation: Excel VBA, custom calculation toolsare such as excel VBA.

🇰🇭Phnom Penh, Cambodia$15/hr100% JSS5.00 (8)Since Feb 2026

Earnings and projects

MRR
$182

Last 6 months ÷ 6

World#116,609 / 412k
🇰🇭Country#38 / 128
Revenue, last 30 days
$0

Last 6 months: $1.1k

Total earnings
$1.3k

Billed in all: $1.4k

World#369,845 / 412k
🇰🇭Country#110 / 128
Per project
$133

$137 in the last 6 months

World#290,338 / 412k
🇰🇭Country#85 / 128
Projects, last 6 months
8
100% fixed0% hourly
World#24,499 / 412k
🇰🇭Country#14 / 128
Projects in all
10
80% fixed20% hourly
World#201,797 / 412k
🇰🇭Country#73 / 128

Earnings, last 30 days

$1.4kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$1,340$1,360$1,380$1,400Oct 8Oct 23Nov 7

Skill rankings: Top 23% in Microsoft VBScript

Ranked by MRR among everyone on Upwork with the skill.

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  2. #20Autodesk Robot Structural Analysis64 freelancers · 🇰🇭 #2Top 31%
  3. #24Microsoft VBScript104 freelancers · 🇰🇭 #1Top 23%
  4. #30Telecommunications Engineering124 freelancers · 🇰🇭 #1Top 24%
  5. #43STAAD135 freelancers · 🇰🇭 #1Top 32%
  6. #53SAP2000136 freelancers · 🇰🇭 #2Top 39%
  7. #673D Modeling Software232 freelancers · 🇰🇭 #1Top 29%
  8. #68Steel Detail Drawing198 freelancers · 🇰🇭 #2Top 34%