🤖
SYSTEM ONLINE
ATS RESUME PIPELINE
// Automated Talent Screening & AI Scoring Platform — v2.0
📄
// STEP 01
Resume Submission
Candidate emails resume PDF to recruiter inbox
Subject: Application for Software Engineer · Attachment: resume.pdf
CANDIDATE
📧 Email arrives in Gmail inbox
📎 Attachment: resume.pdf detected
👤 Triggers automated pipeline
📧
// STEP 02
Gmail Inbox
Email sits in inbox awaiting Apps Script polling cycle
status: UNREAD · has:attachment · filename:pdf
GMAIL
📬 Unread email detected
🔍 Search filter applied
⏱ Awaiting next poll interval
⚙️
// STEP 03
Gmail Monitor — Google Apps Script
Time-triggered function continuously polls for new resume emails
query
→
"is:unread has:attachment filename:pdf"
trigger
→
time-based · every 5 minutes
APPS SCRIPT
⚙️ Google Apps Script runtime
🔁 Polls every 5 minutes
📂 Reads all matching threads
🔄
// STEP 04
PDF → Base64 Encoding
Reads PDF bytes from attachment, encodes for HTTP transport
resume.pdf → JVBERi0xLjQgMSAwIG9iaiA8PC...
ENCODE
📄 Reads raw PDF attachment bytes
🔢 Encodes to base64 string
📦 Wraps in JSON payload
🌐
// STEP 05
AWS API Gateway
HTTPS entry point into AWS cloud — routes request to Lambda
POST
https://YOUR_API_GATEWAY.amazonaws.com/upload
body
→
{"body": "<base64_encoded_pdf>"}
AWS
🚪 AWS Cloud entry point
🔐 Auth & rate limiting applied
➡️ Triggers Lambda function
⚡
// STEP 06
AWS Lambda — resume-processor
Serverless orchestrator: parse → extract → score → store
runtime: Python 3.11 · memory: 512MB · timeout: 30s
LAMBDA
⚡ Serverless cold start ~200ms
🐍 Python 3.11 runtime
🎯 Orchestrates all sub-tasks
📑
// STEP 07
PDF Text Extraction — PyPDF2
Decode base64 → load PDF → iterate pages → extract raw text
output
→
"Sarthak Ravindra Jadhav\nB.Tech Electronics & Telecommunication\nSkills: Python, AWS, VHDL\nCGPA: 7.02"
PyPDF2
📖 Page-by-page text scan
🔤 Strips formatting noise
📊 Avg 2–3 pages processed
parallel processing
🔍
// STEP 08a
Regex Extraction
email
:
[\w\.-]+@[\w\.-]+
phone
:
\d{10}
cgpa
:
7\.02 ✓
experience
:
0 yrs ✓
AND
🧠
// STEP 08b
Groq AI Extraction
name
:
"Sarthak Jadhav"
skills
:
["Python","AWS","VHDL"]
education
:
"B.Tech ECE"
⟶ MERGE ⟶
🔗
// STEP 09
Unified Candidate Profile
Regex deterministic data + Groq AI structured fields merged
name
:
"Sarthak Jadhav"
email
:
example@gmail.com
phone
:
9850286690
cgpa
:
7.02
exp_years
:
0
skills
:
["Python","AWS","VHDL"]
MERGED
🧩 Deterministic + AI data fused
✅ Schema validated
📊 Ready for ATS scoring
🎯
// STEP 10
ATS Score Engine — Groq AI
AI evaluates holistic candidate quality and generates score + written evaluation
72
/100
ATS SCORE
Good technical foundation with strong programming background. Recommended for technical screening.
SCORE
🤖 Groq LLM evaluator
📊 Score range: 0–100
📝 Written evaluation output
🗄️
// STEP 11
AWS DynamoDB Storage
Persistent NoSQL document store · Table:
candidates
PK: candidate_id (uuid) · GSI: ats_score · TTL: none
DYNAMO
🗃 NoSQL document store
🔑 UUID primary key
📈 GSI on ats_score for queries
📡
// STEP 12
Lambda → Apps Script Response
Full candidate JSON sent back over HTTP 200 OK
status
:
200 OK
name
:
"Sarthak Jadhav"
ats_score
:
72
evaluation
:
"Good..."
RESPONSE
✅ HTTP 200 OK returned
📦 Full JSON payload
⬅️ Back to Apps Script
📊
// STEP 13
Google Sheets — Write Row
Apps Script appends candidate data as a new row
Name · Email · Phone · Skills · Education · CGPA · Exp · ATS Score · Evaluation
SHEETS
📋 New row appended
🔢 9 columns populated
🕐 Timestamp auto-added
🏆
// STEP 14 — PIPELINE COMPLETE
Auto Candidate Ranking
Sheet auto-sorted by ATS Score descending · Top candidates surface instantly for recruiters
🥇
RANK #1
TOP PICK
🥈
RANK #2
STRONG
🥉
RANK #3
REVIEW
✓ DONE
🔽 Sort: ATS Score DESC
👀 Recruiter dashboard ready
🎉 Full pipeline complete!
14
Pipeline Stages
72
ATS Score
2×
AI Extractors
~3s
End-to-End
↺ REPLAY ANIMATION
LIVE
Pipeline active ·
Lambda: resume-processor RUNNING
· DynamoDB write OK ·
Last score: 72/100 — Sarthak Jadhav
· Groq AI connected ·
Gmail monitor: polling every 5 min
· PyPDF2 extraction OK · Regex patterns loaded · API Gateway: 200 OK · Sheets row appended ·
Candidate ranked #1
· Pipeline active ·
Lambda: resume-processor RUNNING
· DynamoDB write OK ·
Last score: 72/100 — Sarthak Jadhav
· Groq AI connected ·
Gmail monitor: polling every 5 min
· PyPDF2 extraction OK · Regex patterns loaded · API Gateway: 200 OK · Sheets row appended ·
Candidate ranked #1
·
ATS: 72/100