Freelance Backend Engineers in Secunderabad

Freelance Backend Engineers in SecunderabadFreelance Backend Engineers in Secunderabad

Projects People

proHyderabad, India

Design Engineer for startups. Next.js, Supabase, Figma

$10k+: Earned

5x: Hired

5.0: Rating

50: Followers

Expert

Expert

Design Engineer for startups. Next.js, Supabase, Figma

Cover image for Nextbase SaaS boilerplate

Nextbase SaaS boilerplate

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3d spinner logo

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Cover image for Payment processing

Payment processing

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Cover image for Progressive bar animation

Progressive bar animation

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Backend Engineer(1)

TULASI KRISHNAKUMAR

Secunderabad, India

FULL STACK WEB DEVELOPER AND DESIGNER

New to Contra

FULL STACK WEB DEVELOPER AND DESIGNER

Cover image for Created an automated reconnaissance and

Created an automated reconnaissance and asset discovery engine that integrates offensive utilities with AI-driven threat triage. Built a FastAPI backend backed by Celery and Redis to execute heavy subdomain discovery (subfinder), port scanning (httpx), and web crawling (katana) concurrently. Configured a PostgreSQL ledger to store asset records and integrated OpenAI/Ollama APIs to parse raw logs, filter out false positives, and suggest potential exploit targets. Exposes a clean REST API for configuring targets and viewing crawled subdomains.

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Cover image for Designed and built a consent-first

Designed and built a consent-first GPS tracking ecosystem featuring a React Native mobile app, a Node.js backend, and a real-time web dashboard. Implemented robust background location services with a permanent Android notification bar to comply with privacy laws. Integrated an offline queue using AsyncStorage that buffers up to 2,000 coordinates during connection drops and auto-syncs via batch uploads once restored. Fingerprinted devices with stable hardware-linked IDs and displayed active paths and accuracy zones on a dark-themed Leaflet.js dashboard map.

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Cover image for Developed an educational cybersecurity platform

Developed an educational cybersecurity platform and live network simulation dashboard. Engineered a FastAPI (Python) backend to safely model network attack vectors including DDoS floods, dictionary brute-forcing, and phishing intercept points. Built a responsive React + TailwindCSS dashboard displaying live packet rates, network latency spikes, and vulnerability scoring via WebSockets. Integrated automated reporting modules enabling administrators to instantly export structured incident details into printable PDF audits and Excel spreadsheets.

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Cover image for Designed and developed a highly

Designed and developed a highly interactive, futuristic corporate portal for a cybersecurity firm using React, Vite, and Tailwind CSS. Implemented a 10-years-ahead dark-mode design with smooth animations powered by Framer Motion and custom particle networks via tsparticles. Structured the app using React Router DOM and optimized SEO indexing with dynamic metadata headers via React Helmet Async. Showcases core compliance matrices, interactive service grids (Red Teaming, Blue Teaming, GRC), and product catalogs at a fluid 60 FPS.

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Backend Engineer(2)

Rishik Siddabathuni

Hyderabad, India

"I build what I design — from logos to full-stack apps, pixe

New to Contra

"I build what I design — from logos to full-stack apps, pixe

Cover image for 🔷 Project Title:
InternHub – AI-Powered

🔷 Project Title: InternHub – AI-Powered Internship Marketplace 🔷 Category: 🛒 Marketplace 🔷 What the App Does: InternHub is an AI-powered internship marketplace designed to connect students with relevant internship opportunities posted by companies. The platform allows students to create profiles, upload resumes, and apply for internships, while companies can post internship listings and manage applications efficiently. The system also includes an AI-based matching feature that evaluates the compatibility between a student’s skills and internship requirements, providing a match score to improve decision-making for both students and recruiters. 🔷 Key Features: 👨‍🎓 Student Side: User registration and login Profile creation with skills and resume upload Browse internship listings Apply for internships with one click View application status (Pending / Accepted / Rejected)🏢 Company Side: Company registration and login Post internship opportunities Define required skills, role, and location View and manage student applications Shortlist or reject candidates 🤖 AI Feature: AI-based Skill Matching System Generates a match score between student profile and internship requirements Helps students understand their suitability for roles Improves internship recommendations 📊 Dashboard System: Separate dashboards for Students and Companies Clean and intuitive UI for easy navigation Centralized application tracking system 🔷 How It Was Built: The application was built using Bubble AI App Builder as the foundation. The initial AI-generated internship marketplace provided the basic structure, including authentication, job listings, and dashboards. On top of this base, enhancements were made by: Adding AI-based skill matching logic Improving UI layout for a modern dashboard experience Strengthening application workflow (apply → review → decision) Structuring a more realistic marketplace flow Why This Project: InternHub solves a real-world problem faced by students — finding relevant internships efficiently. Many students apply randomly without knowing their suitability. This platform introduces AI-driven matching to improve both opportunity discovery and hiring efficiency. Tech/Platform Used: Bubble AI (No-code development platform) AI logic for matching system Database-driven marketplace structure Impact: InternHub simplifies internship discovery, improves application quality, and reduces the gap between students and companies by introducing intelligent matching between skills and opportunities.

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Cover image for website for cyber community

website for cyber community

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Cover image for Full stack development for a

Full stack development for a official website

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Cover image for ✈️ CapCut International Airport –

✈️ CapCut International Airport – Where Creativity Takes Flight For the #CapCutDesignStudio challenge, I reimagined CapCut as a futuristic international airport brand that transforms creativity into a journey. The concept explores what CapCut would look like if it existed beyond video editing—as a destination where creators check in, explore new ideas, and take off toward innovation. The project includes airport branding, boarding passes, wayfinding signage, aircraft livery, mobile app concepts, staff identities, and promotional campaign visuals. Built using CapCut Design Studio with a focus on brand storytelling, world-building, and immersive visual design.

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Backend Engineer(3)

Hyderabad, India

SaaS Builder | MERN + Real-time Apps & IoT

New to Contra

SaaS Builder | MERN + Real-time Apps & IoT

Cover image for I built an AI-powered data

I built an AI-powered data enrichment system that efficiently processes and improves large university datasets. It automates the entire enrichment workflow, handles structured data cleanly, and gives real-time logs so you can easily monitor what's happening in the pipelines. The main goal was to make the whole process scalable, automated, and easy to manage. I created a clean dashboard where users can track everything, which really helps improve data quality and gives full visibility into the operations. Key Highlights: AI-driven data enrichment workflows Real-time processing logs and activity monitoring Structured university data management Automated backend pipelines Clean dashboard for monitoring and control Scalable and efficient architecture Tech Stack: Node.js, Express.js, MongoDB, JavaScript, REST APIs, AI Automation Tools

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Cover image for I built a clean and

I built a clean and modern e-commerce website focused on great user experience. The whole thing feels smooth, looks good, and works perfectly on both mobile and desktop. It includes a nice dynamic landing page, easy product browsing, add-to-cart functionality, a fully working shopping cart where you can change quantities or remove items, and a clean checkout page. I developed it using React and followed modern frontend practices. Everything is built with reusable components and responsive design so it feels fast and seamless no matter what device you're on. Key Highlights: Responsive homepage with a modern look Smooth add-to-cart experience Smart cart management (add, remove, update quantity) Clean and minimal UI/UX Fully mobile-friendly Tech Stack: React.js, Tailwind CSS, JavaScript, HTML & CSS

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Cover image for Built a full-stack overseas study

Built a full-stack overseas study abroad platform from scratch using the MERN stack. This wasn't just a CRUD app — it's a real SaaS system with four separate role-based dashboards (Student, Counselor, Admin, Super Admin), each with their own permissions and workflows. The student side lets users track their entire application journey — from shortlisting universities to monitoring visa progress in real time. Counselors get a dedicated space to manage their assigned students, handle documents, and track leads. Admins oversee the counselors and overall operations, while the Super Admin has full system control. Some things I'm genuinely proud of here: I integrated Socket.IO (http://Socket.IO) for real-time updates so students actually see status changes live without refreshing. Authentication runs on both Google OAuth and session-based login with Express Sessions. Security was taken seriously — Helmet.js for HTTP headers, XSS protection, and need-based API design so the server never over-fetches. Cloudinary handles all media uploads for university images and application documents. The backend is built with pagination from day one, so it scales cleanly even with thousands of universities and users in the database. The whole thing is modular — adding new roles or features doesn't break existing flows. This is one of those projects where I had to think like a product engineer, not just a developer. Managing multi-role access, real-time communication, and secure document handling all in one system was a solid challenge and I'm happy with how it came together.

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Cover image for 🚨 Preventing equipment failure with

🚨 Preventing equipment failure with real-time IoT monitoring I built a live temperature monitoring system that detects critical changes instantly and alerts before damage happens. 🔴 Live Demo: https://live-temperature-sensor.vercel.app This system streams real-time sensor data using Socket.IO (http://Socket.IO) — no refresh, no delay. ⚡ What it does: • Real-time temperature tracking with live graphs • Instant alerts when thresholds are exceeded • Predictive insights to detect risks early • Device health monitoring (battery, uptime, status) 🧠 Tech Stack: React + Node.js + Socket.IO (http://Socket.IO) + IoT sensors (MQTT) 💡 Use cases: • Server rooms & data centers • Industrial environments • Medical storage systems • Smart IoT setups 👉 Built as a scalable real-time system, not just a dashboard. If you're working on IoT or real-time applications, let’s connect.

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Backend Engineer(1)

Hyderabad, India

“I build AI-powered web apps & ML solutions”

New to Contra

“I build AI-powered web apps & ML solutions”

Cover image for I developed a Legal Document

I developed a Legal Document Automation web application designed to simplify and streamline the process of creating professional legal documents for small businesses and freelancers. The platform enables users to generate documents such as contracts and NDAs using smart, customizable templates. The system features dynamic form inputs that automatically populate legal content based on user requirements, reducing manual effort and errors. It also includes PDF generation and e-signature integration, allowing users to create, sign, and manage documents digitally in a seamless workflow. On the backend, I implemented efficient document processing using Node.js and Express, ensuring smooth handling of data and secure operations. The application is designed with a user-friendly interface, making complex legal processes accessible even for non-technical users. Overall, this project demonstrates my ability to build practical, end-to-end web solutions that combine automation, backend logic, and user-centric design to solve real-world problems.

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Cover image for developed a personalized learning path

developed a personalized learning path generator which is named as intellitrack with neat and premium ui/ux

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Cover image for I developed a modern, responsive

I developed a modern, responsive company website for Zentrixa Labs, designed to showcase digital services, portfolio projects, and business capabilities with a premium user experience. The project focuses on delivering a startup-level interface with strong UI/UX principles and interactive design. The website features a visually engaging landing page with smooth animations, gradient typography, and clear call-to-action elements to enhance user engagement. It includes well-structured sections such as services, company profile, client testimonials, and project showcases to simulate a real-world business environment. A key highlight of this project is the advanced interactive services module, where users can explore detailed offerings through expandable cards, modal views, and tab-based navigation. This creates a dynamic and intuitive browsing experience similar to modern SaaS platforms. Additionally, the platform demonstrates real-world implementation by showcasing projects across web development, mobile apps, UI/UX design, and AI solutions, along with the technologies used. The website is fully responsive and optimized for all devices, ensuring a consistent and high-quality user experience. Overall, this project reflects my ability to design and develop professional, scalable, and visually appealing web applications that align with industry standards.

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Cover image for Showcase of AI-Powered Projects

Showcase of AI-Powered Projects

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Backend Engineer(1)

Hyderabad, India

Innovative software engineer with 10+ years

Innovative software engineer with 10+ years

Cover image for Full-Stack Developer for Food Rescue Platform

Full-Stack Developer for Food Rescue Platform

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Cover image for Full stack engineer

Full stack engineer

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Cover image for Combatting Phishing: Safeguarding Against Emerging Cyber Threats

Combatting Phishing: Safeguarding Against Emerging Cyber Threats

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Backend Engineer(2)

Rahul Hrushikesh

Hyderabad, India

Professional Fullstack Engineer & Developer

Professional Fullstack Engineer & Developer

Cover image for Exterview - Video Call Web App

Exterview - Video Call Web App

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Cover image for GSKM LAW COLLEGE – Dynamic Website for CMS

GSKM LAW COLLEGE – Dynamic Website for CMS

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Cover image for BountyBytes || AI Studios

BountyBytes || AI Studios

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Backend Engineer(1)

Leela Venkatesh Atchutha

Hyderabad, India

Backend Developer | Django & FastAPI

Backend Developer | Django & FastAPI

Cover image for Azure Function: PDF Generator

Azure Function: PDF Generator

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Cover image for Stripe API Payments with Fastapi

Stripe API Payments with Fastapi

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Cover image for Social Media Analytics Dashboard Development

Social Media Analytics Dashboard Development

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Backend Engineer(3)