PS

Palla Siva Sai

Hi 👋 There!!!

SQL & Database Developer

I'm

SQLMySQLPostgreSQLSQLiteSupabase Database DesignTransactions

Open to Junior SQL Developer & Database Developer opportunities

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SQL & Database Developer Profile

Palla Siva Sai
Hello Recruiter!!!

I am Palla Siva Sai, a SQL & Database Developer focused on building reliable database-driven systems.

My portfolio is intentionally centered on SQL, relational databases, DBMS concepts, database design, normalization, CRUD operations, joins, subqueries, aggregation, transactions, concurrency, SQL functions, triggers, database security, authentication, data integrity, reporting and database-backed applications.

I work with MySQL, PostgreSQL, SQLite and Supabase, using PHP/MySQL, Python/SQLite and modern application layers when required to build and demonstrate database functionality.

Supporting development practices include Git/version control and AI-assisted software development to improve SQL development, debugging, documentation and application delivery.

What I Bring

Practical database skills for SQL-focused development roles

SQL Query DevelopmentQueries, filtering, joins, subqueries and aggregation
Relational Database DesignSchema design, normalization and data modeling
CRUD & Database OperationsInsert, read, update and delete workflows
Transactions & Data IntegrityTransaction processing, consistency and database controls
Database SecurityAuthentication data, RLS and database-level security concepts
Database ReportingSQL reporting with Power BI and DAX exposure

Skills

--SQL & Database Technology Stack--

SQL Development

98%

MySQL / MySQLi

95%

PostgreSQL / Supabase

92%

DBMS & Relational Database Concepts

92%

Database Design & Data Modeling

90%

CRUD & SQL Database Operations

90%

Joins & Subqueries

88%

Transactions & Data Integrity

88%

SQL Functions & Triggers

85%

Database Security & RLS

82%

SQLite & Python Database Integration

80%

PHP & MySQL Integration

80%

SQL Reporting / Power BI / DAX

78%

Version Control System

80%

AI-Assisted Software Engineer

82%

SQL & Database Projects

--Database-First Project Portfolio--

6featured SQL / database projects
4database platforms
24hrecovery research window

🏦 SAIBANK — Transaction & Recovery Database

Database-first digital banking prototype centered on transaction processing and wrong-payment recovery. The current implementation uses PostgreSQL/Supabase database functions, transaction grouping, row locking, reversal workflows, negative-balance recovery and account freeze/unfreeze logic.

PostgreSQL SQL Supabase Transactions Triggers
Database architecture: Profiles → Accounts → Transactions · Atomic transfer processing · Row locking · 24-hour reversal workflow · Audit/recovery controls
Transaction & Recovery Architecture
Profiles User identity
Accounts Balance & ownership
Transactions Atomic transfer + row locking
24-Hour Recovery Verification → Reversal → Audit / Recovery controls
SAIBANK in action Visual proof of the transaction, recovery and database-driven workflow.
3 screenshots
SAIBANK dashboard showing recent transaction records and reversal activity Transaction dashboard SAIBANK transaction history showing the wrong payment recovery action and remaining 24-hour window 24-hour recovery window SAIBANK transaction history showing a wrong payment reversal and restored amount Reversal completed
SQL / Code Demo

🗄️ Sai CRUD Operations Lab

Interactive database lab demonstrating Insert, Read, Update and Delete operations, generated SQL, PostgreSQL JSONB data storage and the browser-to-database flow.

SQL PostgreSQL Supabase CRUD JSONB
Database architecture: Field Designer → Dynamic Form → JSON payload → Supabase/PostgreSQL demo_items JSONB → Generated Table
Dynamic CRUD Data Flow
Field DesignerFields + validation
→
Dynamic FormReact state
→
demo_itemsJSONB in PostgreSQL
→
CRUD TableRead · Update · Delete
INSERTSELECT / JSONBUPDATEDELETE
SQL / Code Demo

🔑 PHP + MySQL Authentication Database

Database-backed signup and login system demonstrating MySQL schema usage, prepared INSERT/SELECT queries, user records and authentication data workflows.

MySQL PHP MySQLi SQL
Database architecture: Registration form → MySQLi prepared INSERT → sai registration table ← prepared SELECT ← Login form
PHP + MySQL Authentication Flow
RegisterForm fields
→
connect.phpMySQLi + prepared INSERT
→
Registration TableMySQL / MariaDB
←
login.phpPrepared SELECT + compare
Demo / Learning ProjectProduction: password_hash()
SQL / Code

🗳️ Vote Management System — MySQL

PHP + MySQL database application managing voters, positions, candidates, ballot data and vote results. Demonstrates relational joins, CRUD workflows and database-driven administration.

MySQL PHP SQL Joins CRUD
Database architecture: Session-protected admin → Voters + Positions + Candidates → Ballot ordering → Votes → Dashboard tally
Voting Management Architecture
Admin SessionPHP session guard
→
VotersPassword + voter ID
→
PositionsPriority + max votes
→
CandidatesPosition mapping
Ballot / AJAXVotesTally / Charts
SQL / Code

👥 HR Workforce — SQLite Database

Database-driven HR management system using SQLite relational tables for employees, departments, attendance, performance, goals and leave records. Demonstrates SELECT, INSERT, JOIN, LEFT JOIN, filtering, aggregation and parameterized SQL.

SQLite SQL JOIN Python
Database architecture: Users → Employees → Performance / Attendance / Goals / Leave Records, with Departments linked to Employees
HR Workforce Relational Model
UsersAuth + roles
→
EmployeesCore employee entity
←
DepartmentsDepartment mapping
PerformanceAttendanceGoalsLeave Records
SQL JOINLEFT JOINAggregationParameterized Queries
SQL / Code Demo

🏧 Basic Banking System — MySQL

PHP + MySQL banking application with Users and Transaction tables, money transfers, transaction history and relational data workflows.

MySQL PHP Transactions Relational DB
Database architecture: Users → select sender → Transfer Money → receiver → Transaction History
Basic Banking Transaction Flow
UsersName · email · balance
→
Transfer MoneySender → Receiver
→
TransactionsTransfer history + time
MySQLPHPRelational Tables
SQL / Code

🗃️ More SQL / Database Work

Explore additional database, SQL, banking, data-management and database-backed application work in my GitHub repositories.

SQL Repositories

SQL & Database Research

--Database Research & Transaction Security--

💳 24-Hour Time-Bound Wrong Payment Recovery Framework

Research proposal for secure digital banking transaction recovery within a defined 24-hour reporting window. The work explores database-level transaction controls, transaction consistency, audit logging, verification, negative-balance recovery, outgoing transaction restriction and future-credit recovery.

SQL Database Security Transactions Recovery Audit Logging
ResearchGate DOI
Recruiter-ready resume View the latest SQL & Database Developer resume for education, credentials and project experience.
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SQL Developer Resume Snapshot

Education

Master of Computer Applications (MCA)


Koneru Lakshmaiah Education Foundation (KLU)

CGPA: 9.45 · DBMS · Database Systems · Cyber Security · DSA · Computing

SQL / Database Credentials

HackerRank SQL · Certificate
Programming Foundations: Databases
Network Security & Database Vulnerabilities — IBM
Oracle Cloud Infrastructure Foundations Associate

Database-Focused Experience

SQL / Database Development Portfolio

Practical project work across MySQL, PostgreSQL, SQLite and Supabase, including relational schema design, CRUD, authentication data, transaction processing, SQL joins, database functions, triggers and reporting.

Software Development Experience

Application development experience used to build database-backed systems with PHP/MySQL, Python/SQLite and modern frontend/database integrations.

AI-Assisted Database Development

Uses AI-assisted development as a supporting practice for SQL development, debugging, documentation, query reasoning and database application delivery.

LET'S CONNECT

Open to SQL & Database Opportunities

Looking for a Junior SQL Developer or Database Developer opportunity? I’m open to connecting with recruiters, hiring teams and technical professionals.

SQL MySQL PostgreSQL SQLite Supabase Database Development
Emailimsivasai01@gmail.com Professional NetworkLinkedIn Profile Source Code & ProjectsGitHub Profile

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By Psiva Sai