Skip to content
BackNov 7
Pia C.
Upwork badge

Pia C.

AI Data & Evaluation | Data Quality | Software Development

I’m an experienced software professional with 25+ years of experience developing and supporting backend and batch-processing systems in enterprise UNIX/Linux environments. My background includes C, UNIX/Linux, Oracle SQL, Pro*C, KornShell scripting, and large-scale production systems. I’ve worked on systems where accuracy, reliability, documentation, testing, and understanding existing code are critical—not simply writing new code. More recently, I’ve expanded that experience into AI and dataset work, including AI response evaluation, data quality, annotation-related workflows, and voice/data work. That work introduced me to the terminology and practical considerations involved in preparing and evaluating data used in AI systems. What I can help with • Software development, maintenance, and troubleshooting • C and UNIX/Linux programming • Oracle SQL and Pro*C • Shell scripting and backend/batch processing • Technical documentation and code documentation • Test-case development and technical validation • Data quality and dataset review • AI response evaluation and AI training-data work • Proofreading and editing of technical or business writing • Voice/data recording projects when a clear, professional voice is needed I’m particularly comfortable working with existing systems and documentation, understanding how pieces fit together, identifying what needs to change, and communicating those changes clearly. My enterprise software background has also taught me the importance of following established processes, investigating problems carefully, documenting work, and delivering results that can be understood and maintained by others. I’m continuing to build my skills in modern data and AI technologies while bringing the discipline and problem-solving experience developed through decades of professional software work. If your project involves software, data quality, AI data/evaluation, technical documentation, or detail-oriented technical work, I’d be glad to discuss how my background could fit your needs.

🇺🇸Rocklin, United States$45/hr100% JSS5.00 (23)Since Dec 2022

Earnings and projects

MRR
$1

Last 6 months ÷ 6

World#181,497 / 412k
🇺🇸Country#23,480 / 62.1k
Revenue, last 30 days
$0

Last 6 months: $9

Total earnings
$7k

Billed in all: $8k

World#225,889 / 412k
🇺🇸Country#35,812 / 62.1k
Per project
$234

$9 in the last 6 months

World#252,204 / 412k
🇺🇸Country#40,309 / 62.1k
Projects, last 6 months
1
100% fixed0% hourly
World#128,092 / 412k
🇺🇸Country#16,472 / 62.1k
Projects in all
30

Across 32 contracts

94% fixed6% hourly
World#97,486 / 412k
🇺🇸Country#14,500 / 62.1k

Earnings, last 30 days

$8kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$7.8k$7.9k$8.0k$8.1kOct 8Oct 23Nov 7

Skill rankings: Top 17% in Unix

Ranked by MRR among everyone on Upwork with the skill.

  1. #23Unix134 freelancers · 🇺🇸 #2Top 17%
  2. #596C1,974 freelancers · 🇺🇸 #87Top 30%
  3. #824Web Testing1,763 freelancers · 🇺🇸 #53Top 47%
  4. #1,242Database3,249 freelancers · 🇺🇸 #144Top 38%
  5. #1,789Voice Acting3,970 freelancers · 🇺🇸 #525Top 45%
  6. #2,382Voice-Over5,092 freelancers · 🇺🇸 #552Top 47%
  7. #6,173Writing16,517 freelancers · 🇺🇸 #1,831Top 37%
  8. #6,654Proofreading14,990 freelancers · 🇺🇸 #1,475Top 44%