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Subashini S.

Subashini S.

Building Management System & Sustainability Consultant

I am a sustainability and building systems consultant specialising in building management systems (BMS), HVAC optimisation, and energy efficiency. I help organisations improve building performance, reduce energy consumption, and align projects with modern sustainability frameworks. My experience combines engineering and sustainability strategy, including smart building projects such as Project Haystack tagging, data mapping, and integrating BMS into smart buildings. I also work on environmental data analysis and sustainability reporting aligned with ESG frameworks and Lifecycle Assessment (LCA). In addition, I evaluate the environmental impact of AI technologies to support responsible digital transformation. I support clients with BMS consulting, HVAC energy optimisation, sustainability strategy, environmental data analysis, and smart building solutions, delivering practical, data-driven improvements in efficiency and sustainability.

🇮🇳Chengalpattu, India$14/hr40% JSSSince Mar 2026

Earnings and projects

MRR
$6

Last 6 months ÷ 6

World#176,371 / 412k
🇮🇳Country#18,611 / 45.9k
Revenue, last 30 days
$0

Last 6 months: $34

Total earnings
$949

Billed in all: $1.1k

World#397,749 / 412k
🇮🇳Country#43,029 / 45.9k
Per project
$949

$34 in the last 6 months

World#127,984 / 412k
🇮🇳Country#16,125 / 45.9k
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇮🇳Country#14,379 / 45.9k
Projects in all
1

Across 2 contracts

0% fixed100% hourly
World#360,671 / 412k
🇮🇳Country#42,133 / 45.9k

Earnings, last 30 days

$1.1kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$1,040$1,060$1,080$1,100Oct 8Oct 23Nov 7

Skill rankings: Top 40% in Sustainability

Ranked by MRR among everyone on Upwork with the skill.

  1. 2Haystack5 freelancers · 🇮🇳 #1Top 40%
  2. #85Energy196 freelancers · 🇮🇳 #7Top 43%
  3. #189Sustainability478 freelancers · 🇮🇳 #13Top 40%
  4. #701Data Engineering1,602 freelancers · 🇮🇳 #98Top 44%
  5. #6,056Data Analysis14,624 freelancers · 🇮🇳 #412Top 41%