rauell1 Roy Otieno | Energy & Mobility Systems
Engineer focused on renewable energy systems and electric mobility infrastructure in Africa.
EVIDENCE BASE
50
Repositories
4755
Commits
4949
Files analyzed
47
Technologies
378
Evidence
17
Active months
Based on 50 repository passports · 24/50 current
ENGINEERING PROFILE
Frontend95%
Backend83%
Testing83%
DevOps91%
CORE TECHNOLOGIES
HR: name + projects · Lead: + files/LOC · persistence Core≥4
TypeScript Core
LANGUAGE · 21/50 repos · 2614 files · 317297 LOC
Depth 70 · HIGH
React Core
FRAMEWORK · 20/50 repos · 1083 files · 157883 LOC
Depth 85 · HIGH
Next.js Core
FRAMEWORK · 20/50 repos · 848 files · 91385 LOC
Depth 81 · HIGH
Markdown Core
LANGUAGE · 24/50 repos · 544 files · 82475 LOC
Depth 70 · HIGH
JSON Core
LANGUAGE · 23/50 repos · 225 files · 321643 LOC
Depth 70 · HIGH
Python Core
LANGUAGE · 9/50 repos · 173 files · 20865 LOC
Depth 70 · HIGH
JavaScript Core
LANGUAGE · 20/50 repos · 107 files · 16390 LOC
Depth 70 · HIGH
Vitest Core
TESTING · 7/50 repos · 80 files · 11488 LOC
Depth 53 · HIGH
SQL Core
LANGUAGE · 15/50 repos · 74 files · 6434 LOC
Depth 70 · HIGH
Zod Core
LIBRARY · 18/50 repos · 72 files · 19588 LOC
Depth 81 · HIGH
ESLint Core
QUALITY · 17/50 repos · 56 files · 268568 LOC
Depth 65 · HIGH
PostgreSQL Core
DATABASE · 14/50 repos · 47 files · 74382 LOC
Depth 65 · HIGH
YAML Core
LANGUAGE · 11/50 repos · 28 files · 13636 LOC
Depth 70 · HIGH
npm Core
BUILD_TOOL · 22/50 repos · 22 files · 220 LOC
Depth 80 · HIGH
Redis Core
CACHE · 12/50 repos · 21 files · 98419 LOC
Depth 93 · HIGH
pytest Recurring
TESTING · 2/50 repos · 19 files · 982 LOC
Depth 60 · HIGH
Shell Core
LANGUAGE · 4/50 repos · 17 files · 415 LOC
Depth 70 · HIGH
Prettier Core
QUALITY · 10/50 repos · 17 files · 104515 LOC
Depth 65 · HIGH
Prisma Core
DATABASE · 7/50 repos · 15 files · 2636 LOC
Depth 58 · HIGH
React Router Emerging
LIBRARY · 1/50 repos · 13 files · 3090 LOC
Depth 74 · HIGH
MongoDB Core
DATABASE · 11/50 repos · 12 files · 107926 LOC
Depth 61 · HIGH
pandas Emerging
LIBRARY · 1/50 repos · 11 files · 1041 LOC
Depth 81 · HIGH
NumPy Recurring
LIBRARY · 2/50 repos · 10 files · 1076 LOC
Depth 78 · HIGH
FastAPI Recurring
FRAMEWORK · 2/50 repos · 10 files · 883 LOC
Depth 81 · HIGH
Playwright Recurring
TESTING · 2/50 repos · 9 files · 1188 LOC
Depth 74 · HIGH
Tailwind CSS Core
LIBRARY · 18/50 repos · 9 files · 1001 LOC
Pydantic Recurring
LIBRARY · 2/50 repos · 8 files · 565 LOC
Depth 81 · HIGH
Vite Core
BUILD_TOOL · 5/50 repos · 7 files · 2754 LOC
Depth 62 · HIGH
Socket.IO Core
LIBRARY · 6/50 repos · 6 files · 624 LOC
Depth 58 · HIGH
Dockerfile Recurring
LANGUAGE · 2/50 repos · 5 files · 65 LOC
Depth 70 · HIGH
XML Core
LANGUAGE · 5/50 repos · 5 files · 52 LOC
Depth 70 · HIGH
TOML Core
LANGUAGE · 4/50 repos · 4 files · 402 LOC
Depth 70 · HIGH
lxml Emerging
LIBRARY · 1/50 repos · 3 files · 1052 LOC
Depth 66 · HIGH
pnpm Recurring
BUILD_TOOL · 2/50 repos · 2 files · 20 LOC
Depth 80 · HIGH
Express Emerging
FRAMEWORK · 1/50 repos · 2 files · 179 LOC
Depth 62 · HIGH
Starlette Emerging
FRAMEWORK · 1/50 repos · 1 files · 220 LOC
Depth 58 · HIGH
Requests Emerging
LIBRARY · 1/50 repos · 1 files · 209 LOC
Depth 58 · HIGH
pip Emerging
BUILD_TOOL · 1/50 repos · 1 files · 10 LOC
Depth 80 · HIGH
Poetry Emerging
BUILD_TOOL · 1/50 repos · 1 files · 10 LOC
Depth 80 · HIGH
PowerShell Emerging
LANGUAGE · 1/50 repos · 1 files · 28 LOC
Depth 70 · HIGH
RabbitMQ Emerging
MESSAGE_BROKER · 1/50 repos · 1 files · 17198 LOC
Depth 65 · HIGH
Uvicorn Emerging
LIBRARY · 1/50 repos · 1 files · 6 LOC
Depth 40 · HIGH
Apache Kafka Emerging
MESSAGE_BROKER · 1/50 repos · 1 files · 17198 LOC
Depth 65 · HIGH
HTTPX Emerging
LIBRARY · 1/50 repos · 0 files · 0 LOC
AWS SDK Recurring
CLOUD · 3/50 repos · 0 files · 0 LOC
esbuild Emerging
BUILD_TOOL · 1/50 repos · 0 files · 0 LOC
Testing Library Recurring
TESTING · 2/50 repos · 0 files · 0 LOC
ENGINEERING HABITS
containerizationobserved
automated_testsobserved
documentationobserved
lintingobserved
formattingobserved
continuous_integrationobserved
Not observed ≠ does not know
PROJECT PORTFOLIO
chatbot React
steve-ndichu Markdown
greenwave-society UNKNOWN
portfolio npm
roam-energy-page npm
safaricharge FastAPI
828-grill React
dj-kimchi Prisma
ACTIVITY & OWNERSHIP
Active months 17
Commits 4755
Owner authored 100%
PRIMARY PROFILE — HR VIEW
FrontendTypeScript · React · Next.jsHigh ownership
In 30 sec: direction — frontend, core — TypeScript · React · Next.js, 50 repos 2024 — 2026. No LOC or files — stability only.
DEVELOPER SIGNATURE
TypeScriptReactNext.jsMarkdownJSONHigh ownership
TECHNOLOGY EVOLUTION
2023
JavaScript · React
2024
TypeScript · Next.js
2025
TypeScript · PostgreSQL
2026
TS + Next
COMMUNITY / IMPACT not a skill rating
Stars 20
Forks 1
Watchers 1
EVERYTHING ABOVE IS TRACEABLE
50 repositories · 4755 commits · 4949 files · 378 evidence
Absence of a technology in the passport does not imply lack of experience