Open to work · 2026
Work order — portfolio of record Nº AK-2026·07
EngineerAjith K
StackPython · Django · FastAPI
BasedBangalore, India
StatusFreelance & full-time

I build the Python backends businesses run on.

Python backend engineer — I build high-performance Django & FastAPI systems, backed by deep ERP experience. Open to full-time backend roles and freelance Django & ERP projects. Clean architecture, real automation, results you can measure.

Hire me View the record
Filed at GitHub ↗ LinkedIn ↗ X ↗ Stack Overflow ↗
Entry 01 — About

Turning requirements into working software

I'm a Python backend developer specializing in Django, FastAPI, and REST API design. I cut my teeth on ERP — building and maintaining custom Odoo modules at Smuruthi Technologies — which taught me how real businesses actually run: sales, inventory, purchasing, accounting.

Now my focus is core backend engineering: scalable APIs, clean architecture, and automation that solves real workflow problems. I take on freelance Django & ERP projects and I'm actively looking for a full-time Python backend role — clean code, clear communication, results that last.

Backend depth

Python, Django, FastAPI, and DRF — with a focus on clean architecture, scalable APIs, and maintainable code.

ERP background

Odoo v14–v19 across sales, inventory, purchase, HR, and accounting — I know how business systems work end to end.

Business thinking

I understand workflows and business logic. Solutions I build are for real users in real companies — not just to pass tests.

Entry 02 — Services

The catalogue: what I can build for you

Available for freelance engagements — from Django & FastAPI builds to ERP customization. I turn requirements into production-ready solutions with clear communication throughout.

SVC-01Core

Django & FastAPI Development

High-performance Python backends with DRF or FastAPI. Clean architecture, async-ready, documented, production-tested.

  • REST & async API design (DRF / FastAPI)
  • Auth, permissions, JWT & OAuth2
  • Admin panels, dashboards & background jobs
SVC-02Core

Odoo ERP Customization

Custom Odoo modules tailored to how your business actually works — not a generic template. Sales, inventory, HR, purchase, accounting.

  • Custom module development (v14–v19)
  • Workflow automation & approvals
  • Module integration, migration & upgrades
SVC-03

API Integration & Automation

Connect your tools and eliminate manual data entry via REST, XML-RPC, webhooks, and background schedulers.

  • Third-party API integration
  • Automated data-sync pipelines
  • Webhook & event-driven flows
SVC-04

Database Design & Optimization

PostgreSQL schemas and query tuning that keep your app fast as data grows — up to 60% faster through indexing and refactoring.

  • Schema design & migrations
  • Query optimization & indexing
  • Performance profiling & tuning
SVC-05

Business Process Automation

Replace repetitive manual work with Python scripts and Celery jobs — inventory sync, reports, data migration — running reliably in the background.

  • Python automation scripts
  • Celery & scheduled background jobs
  • Data migration & ETL pipelines
SVC-06

Maintenance & Bug Fixing

Diagnose and fix issues in existing Django, FastAPI, or Odoo codebases — review, refactoring, and performance wins without breaking what works.

  • Bug diagnosis & resolution
  • Code review & refactoring
  • Ongoing maintenance support

How a project moves through my desk

1

Discovery

We discuss your project, requirements, and timeline.

2

Proposal

Detailed plan with scope, timeline, and cost estimate.

3

Development

I build with regular updates and milestone check-ins.

4

Delivery

Clean handover with docs and post-launch support.

Entry 03 — Stack

Tools on the shelf

Backend
PythonDjangoFastAPIDjango REST FrameworkCelery
ERP & business systems
Odoo v14–v19OWL FrameworkQWeb TemplatesXML-RPC / JSON-RPCBusiness Workflows
Databases
PostgreSQLMySQLMongoDBQuery Optimization
DevOps & tools
DockerGit & GitHubLinuxNginxREST APIs
Frontend (working knowledge)
HTML5CSS3JavaScriptNext.jsTailwind CSS
On order — currently learning
Data AnalyticsPandas & NumPyFastAPI AdvancedRedis
Entry 04 — Work

Delivery notes: featured work

Real projects with real outcomes — each one tackled a specific business challenge with a focused backend solution.

DN-01 · Sira BoutiqueFreelance · e-commerce

Sira Boutique — Luxury Flower Shop

Challenge: A boutique florist needed a production-grade online store — catalog, cart, subscriptions, coupons, delivery scheduling — with secure payments and a fast, animated storefront.

Backend modules15+
PaymentsStripe
StatusLive in production
Next.jsTypeScriptDjangoDRFPostgreSQLStripe
Visit live site ↗ Delivered · Live
DN-02 · Odoo ERPERP · Odoo

Odoo 18 — Enterprise ERP Integration

Challenge: A manufacturer needed custom Odoo 18 modules to automate purchase approvals, inventory reordering, and financial reporting — plus 5+ external vendor API integrations.

Operational efficiency+40%
Vendor APIs integrated5+
Automated workflows10+
Odoo 18PythonOWLXML-RPCPostgreSQLDocker
Confidential · NDA
DN-03 · Hedera × OdooBlockchain · Odoo

Hedera × Odoo — On-Chain Record Traceability

Challenge: An enterprise needed tamper-proof, auditable records for critical ERP transactions — integrating the Hedera Hashgraph ledger into Odoo 18 so key events are anchored on-chain and independently verifiable.

LedgerHedera Hashgraph
Audit trailImmutable
ERP coreOdoo 18
Odoo 18PythonHedera HashgraphWeb3PostgreSQL
Confidential · NDA
DN-04 · Legacy MigrationData migration · Odoo

Legacy Re-Platform — PHP + SQL Server → Odoo 18

Challenge: A business ran on a legacy PHP app backed by SQL Server. The goal: migrate all historical data into Odoo 18 on PostgreSQL — mapping schemas across engines while preserving relational integrity with zero data loss.

Data lossZero
Engine swapSQL Server → PG
Re-platformPHP → Odoo
Odoo 18PythonPostgreSQLSQL ServerETLData Mapping
Confidential · NDA
DN-05 · StorenovaE-commerce

Storenova — Full-Stack E-Commerce

Challenge: A retail client needed a custom platform with real-time inventory, multi-variant products, and a scalable backend that handled growing order volume without slowdowns.

Uptime99.9%
Page load50% faster
Inventory accuracy99.8%
PythonDjangoPostgreSQLRedisCeleryDocker
View on GitHub ↗ Open source
DN-06 · DevCollabSocial platform

DevCollab — Developer Community Platform

Challenge: A social platform for developers needed real-time features, fast search, and a backend that served a growing user base without N+1 query bottlenecks.

Page loads60% faster
AuthJWT
Real-timeWebSocket
PythonDjangoDRFWebSocketJWTPostgreSQL
View on GitHub ↗ Open source
DN-07 · StorefrontBackend API

Storefront — Scalable E-Commerce Backend

Challenge: A high-traffic store needed a robust backend for concurrent orders, background notifications, and 99.8% product-data accuracy across thousands of SKUs.

Concurrent users1000+
Data accuracy99.8%
Background jobsAsync · Celery
PythonDjangoDRFPostgreSQLCeleryDocker
View on GitHub ↗ Open source
Entry 05 — Experience

The running account

Oct 2024 — Present
Smuruthi Technologies

Python Developer

  • Developed and customized 10+ Odoo ERP modules (Sales, Inventory, Accounting) that automated manual workflows, reducing processing time by 30%.
  • Optimized PostgreSQL queries and indexing strategies, cutting report generation time from ~12s to under 4s for high-traffic modules.
  • Built multiple dynamic financial and operational reports in Odoo, improving real-time visibility for management and reducing manual report preparation time by 40%.
  • Designed and deployed a Docker image for the Odoo project, enabling faster environment setup and reducing developer onboarding time by 70%.
  • Developed role-based access control and authentication (JWT / OAuth2) in Odoo, increasing platform security and reducing unauthorized access attempts by 95%.
  • Integrated the Hedera blockchain into a client project to issue tamper-proof, independently verifiable digital certificates — eliminating forgery and manual verification.
  • Led two legacy migrations — a full PHP/MySQL application into Odoo 18, and three years of Tally accounting data into Odoo 19 — with complete data integrity, enabling unified real-time financial reporting.
  • Built a fully integrated HR attendance system in Odoo using the ZKTeco biometric device API, automating attendance capture and payroll inputs and eliminating manual timesheet entry.
OdooPythonPostgreSQLREST APIsDockerGitJavaScript (OWL)Linux
2023 — Present
Sira Boutique · siraboutique.ae

Freelance Backend Developer

  • Designed and built the production backend for Sira Boutique, a luxury florist in the UAE — a Django REST API powering catalog, cart, subscriptions, coupons, and delivery scheduling for a Next.js storefront.
  • Delivered 15+ backend modules and integrated Stripe for secure payments and full order-lifecycle handling.
  • Modeled the PostgreSQL schema and optimized queries to keep the storefront fast under real customer traffic — now live in production at siraboutique.ae.
  • Owned the engagement end to end — requirements, timelines, and delivery — with direct client communication throughout.
DjangoDRFPostgreSQLNext.jsTypeScriptStripe
Entry 06 — Feedback

What clients say

Verified client
“Ajith built our online flower shop exactly the way we needed — fast, reliable, and easy for customers to order from. He understood our business, kept us updated throughout, and delivered on time. His work has genuinely helped our business grow.”
F Fasil
Sira Boutique · siraboutique.ae
Entry 07 — Credentials

Certifications & learning

Python Django: Complete CourseUdemy . 2022
Python with Data Science TrainingBesant Technologies . 2020
PostgreSQL for DevelopersUdemy · 2023
Docker & ContainerizationUdemy · 2023
Replies within 24h
Entry 08 — Reach

Open a new work order

Hiring for a Python backend role, or need a Django / ERP freelancer? Email works best — tell me what you're building and I'll take it from there.

Email — preferred ★
joinwithajith@gmail.com
Send email ↗
LinkedIn
in/kalidasanajith
View profile ↗
GitHub
@ajithkalidasan
View code ↗
Open to full-time backend roles & freelance projects · Bangalore, India