NullCipherr Andrei Costa
🎓 B.S. in Computer Science | AI & Game Dev Explorer
EVIDENCE BASE
50
Repositories
609
Commits
1791
Files analyzed
53
Technologies
265
Evidence
20
Active months
Based on 50 repository passports · 50/50 current
ENGINEERING PROFILE
Frontend34%
Backend38%
Testing32%
DevOps36%
CORE TECHNOLOGIES
HR: name + projects · Lead: + files/LOC · persistence Core≥4
Markdown Core
LANGUAGE · 50/50 repos · 269 files · 11448 LOC
Depth 70 · HIGH
TypeScript Core
LANGUAGE · 11/50 repos · 238 files · 28574 LOC
Depth 70 · HIGH
C Core
LANGUAGE · 6/50 repos · 138 files · 14205 LOC
Depth 70 · HIGH
React Core
FRAMEWORK · 9/50 repos · 106 files · 15890 LOC
Depth 45 · HIGH
Python Core
LANGUAGE · 10/50 repos · 104 files · 5167 LOC
Depth 70 · HIGH
Shell Core
LANGUAGE · 8/50 repos · 100 files · 6895 LOC
Depth 70 · HIGH
PHP Emerging
LANGUAGE · 1/50 repos · 82 files · 3821 LOC
Depth 70 · HIGH
JSON Core
LANGUAGE · 16/50 repos · 63 files · 47813 LOC
Depth 70 · HIGH
Laravel Emerging
FRAMEWORK · 1/50 repos · 62 files · 1956 LOC
Depth 100 · HIGH
NumPy Core
LIBRARY · 7/50 repos · 53 files · 1860 LOC
Depth 74 · HIGH
JavaScript Core
LANGUAGE · 10/50 repos · 50 files · 11957 LOC
Depth 70 · HIGH
Vue Recurring
LANGUAGE · 3/50 repos · 31 files · 2373 LOC
Depth 70 · HIGH
YAML Core
LANGUAGE · 17/50 repos · 26 files · 761 LOC
Depth 70 · HIGH
Rust Emerging
LANGUAGE · 1/50 repos · 24 files · 2152 LOC
Depth 70 · HIGH
XML Core
LANGUAGE · 6/50 repos · 21 files · 5958 LOC
Depth 70 · HIGH
Java Core
LANGUAGE · 4/50 repos · 20 files · 2122 LOC
Depth 70 · HIGH
Vitest Core
TESTING · 5/50 repos · 18 files · 1258 LOC
Depth 53 · HIGH
C++ Recurring
LANGUAGE · 3/50 repos · 15 files · 689 LOC
Depth 70 · HIGH
TOML Core
LANGUAGE · 6/50 repos · 13 files · 329 LOC
Depth 70 · HIGH
npm Core
BUILD_TOOL · 12/50 repos · 12 files · 120 LOC
Depth 80 · HIGH
Redis Recurring
CACHE · 2/50 repos · 11 files · 8368 LOC
Depth 81 · HIGH
Vite Core
BUILD_TOOL · 10/50 repos · 10 files · 163 LOC
Depth 40 · HIGH
Dockerfile Core
LANGUAGE · 6/50 repos · 7 files · 119 LOC
Depth 70 · HIGH
ESLint Recurring
QUALITY · 3/50 repos · 4 files · 14972 LOC
Depth 61 · HIGH
Express Recurring
FRAMEWORK · 2/50 repos · 4 files · 797 LOC
pip Recurring
BUILD_TOOL · 3/50 repos · 3 files · 30 LOC
Depth 80 · HIGH
Poetry Recurring
BUILD_TOOL · 3/50 repos · 3 files · 30 LOC
Depth 80 · HIGH
PowerShell Emerging
LANGUAGE · 1/50 repos · 3 files · 76 LOC
Depth 70 · HIGH
Serde Emerging
LIBRARY · 1/50 repos · 2 files · 880 LOC
Depth 81 · HIGH
Celery Emerging
MESSAGE_BROKER · 1/50 repos · 2 files · 117 LOC
Depth 62 · HIGH
Pydantic Emerging
LIBRARY · 1/50 repos · 2 files · 97 LOC
Depth 62 · HIGH
Axios Recurring
LIBRARY · 2/50 repos · 2 files · 93 LOC
Depth 40 · HIGH
Zod Emerging
LIBRARY · 1/50 repos · 2 files · 652 LOC
Depth 62 · HIGH
debug Emerging
LIBRARY · 1/50 repos · 2 files · 148 LOC
Depth 69 · HIGH
pytest Recurring
TESTING · 3/50 repos · 2 files · 67 LOC
Depth 37 · HIGH
RabbitMQ Recurring
MESSAGE_BROKER · 2/50 repos · 2 files · 13613 LOC
Depth 61 · HIGH
Go Emerging
LANGUAGE · 1/50 repos · 1 files · 23 LOC
Depth 70 · HIGH
Svelte Emerging
LANGUAGE · 1/50 repos · 1 files · 19 LOC
Depth 70 · HIGH
MongoDB Emerging
DATABASE · 1/50 repos · 1 files · 7943 LOC
Depth 61 · HIGH
Cargo Emerging
BUILD_TOOL · 1/50 repos · 1 files · 10 LOC
Depth 80 · HIGH
Supertest Emerging
TESTING · 1/50 repos · 1 files · 36 LOC
Depth 31 · HIGH
Next.js Emerging
FRAMEWORK · 1/50 repos · 1 files · 5 LOC
Depth 40 · HIGH
Lodash Emerging
LIBRARY · 1/50 repos · 1 files · 6 LOC
Depth 40 · HIGH
Elasticsearch Emerging
DATABASE · 1/50 repos · 1 files · 7943 LOC
Depth 61 · HIGH
Composer Emerging
BUILD_TOOL · 1/50 repos · 1 files · 10 LOC
Depth 80 · HIGH
Tailwind CSS Core
LIBRARY · 4/50 repos · 1 files · 16 LOC
pandas Emerging
LIBRARY · 1/50 repos · 1 files · 35 LOC
Depth 52 · HIGH
FastAPI Emerging
FRAMEWORK · 1/50 repos · 1 files · 91 LOC
Depth 58 · HIGH
mypy Emerging
QUALITY · 1/50 repos · 0 files · 0 LOC
Black Emerging
QUALITY · 1/50 repos · 0 files · 0 LOC
Ruff Recurring
QUALITY · 2/50 repos · 0 files · 0 LOC
Clap Emerging
LIBRARY · 1/50 repos · 0 files · 0 LOC
Testing Library Emerging
TESTING · 1/50 repos · 0 files · 0 LOC
ENGINEERING HABITS
containerizationobserved
automated_testsobserved
documentationobserved
lintingobserved
formattingobserved
continuous_integrationobserved
Not observed ≠ does not know
PROJECT PORTFOLIO
Python_Language NumPy
Normal_Map_Generator Markdown
High_Boost_Filtering NumPy
HSV_Color_Spectrum_Manipulation Markdown
Penetration_Test_Kali_Linux Markdown
grit-engine npm
C_Language Markdown
ACTIVITY & OWNERSHIP
Active months 20
Commits 609
Owner authored 100%
PRIMARY PROFILE — HR VIEW
FrontendMarkdown · TypeScript · CHigh ownership
In 30 sec: direction — frontend, core — Markdown · TypeScript · C, 50 repos 2023 — 2026. No LOC or files — stability only.
DEVELOPER SIGNATURE
MarkdownTypeScriptCReactPythonHigh ownership
TECHNOLOGY EVOLUTION
2023
JavaScript · React
2024
TypeScript · Next.js
2025
TypeScript · PostgreSQL
2026
TS + Next
COMMUNITY / IMPACT not a skill rating
Stars 96
Forks 1
Watchers 31
EVERYTHING ABOVE IS TRACEABLE
50 repositories · 609 commits · 1791 files · 265 evidence
Absence of a technology in the passport does not imply lack of experience