Freelancers using GitHub in İstanbul

Freelancers using GitHub in İstanbulFreelancers using GitHub in İstanbul

Projects People

İstanbul, Turkey

Full-Stack Software Eng. building scalable web apps, Saas

New to Contra

Full-Stack Software Eng. building scalable web apps, Saas

Cover image for Procurement Ocean 360 — End-to-End

Procurement Ocean 360 — End-to-End Procurement Management SaaS (ِActive Development) An enterprise procurement SaaS platform currently in active development, designed to manage the purchasing lifecycle from requests and approvals through sourcing, vendor management, purchase orders, fulfillment, finance, and analytics. Procurement Ocean 360 is an enterprise procurement management platform currently under active development. I am building it to centralize and automate complex procurement workflows within a single SaaS environment.

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Cover image for Site Ocean 360 — Construction

Site Ocean 360 — Construction & Site Inspection SaaS (In Stage) A SaaS platform for managing construction and field inspections, enabling teams to digitize site inspections, track findings, manage corrective actions, and maintain structured inspection records from one centralized system. Project Overview Site Ocean 360 is a web-based SaaS platform designed to digitize and streamline inspection processes across construction sites and other field-based operations. The system replaces fragmented inspection workflows, paperwork, spreadsheets, and manual follow-ups with a centralized digital platform where teams can conduct inspections, document findings, track issues, and maintain organized inspection records. It is designed for organizations that need structured, traceable, and scalable site inspection workflows across multiple projects, locations, and teams.

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Cover image for A modern workforce management platform

A modern workforce management platform that automates employee leave requests, multi-level approvals, attendance tracking, HR policies, and workforce visibility through a centralized digital workflow. Project Overview Holiday Ocean 360 is a SaaS workforce management platform designed to replace manual HR processes based on spreadsheets, emails, and messaging apps. The platform provides employees, managers, and HR teams with a centralized environment for managing leave requests, approvals, balances, policies, attendance, and workforce records. Employees can submit and track requests through a self-service experience, while managers gain visibility into team availability, planned absences, workload, and leave conflicts before making approval decisions. Privacy Note: All screenshots use fictional sample data created specifically for demonstration purposes. No real client or confidential information is shown.

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Cover image for A cloud-based document control platform

A cloud-based document control platform built for construction and engineering teams to centralize project documentation, manage revisions, automate review and approval workflows, and maintain full visibility across the document lifecycle.

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Kerem PARLAKGUMUS

İstanbul, Turkey

Multifaceted UX Researcher & Analyst with 10+ Years

Multifaceted UX Researcher & Analyst with 10+ Years

Cover image for Software Requirements Engineering for Startups

Software Requirements Engineering for Startups

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Cover image for Product Strategy & Market Alignment

Product Strategy & Market Alignment

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Cover image for Agile Project Consultation for FinTech Startup

Agile Project Consultation for FinTech Startup

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İstanbul, Turkey

AI, Software, Games & Cybersecurity Product Builder

New to Contra

AI, Software, Games & Cybersecurity Product Builder

Cover image for I built a modular RPG

I built a modular RPG inventory and crafting backend in modern C++17. The system combines inventory management, equipment slots, recipe discovery, crafting mastery, enchantments, item upgrades, armor set bonuses, shops, weighted loot tables, turn-based combat, and persistent save/load. The architecture is data-driven through JSON and designed for clean integration into larger game projects, with explicit error handling, modular systems, and configurable gameplay content.

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Cover image for I built Idiolect, an open-source

I built Idiolect, an open-source cross-lingual authorship attribution tool for OSINT and forensic linguistics. It compares writing samples across different languages using language-independent structural habits and multilingual style embeddings. The tool produces an attribution score, confidence level, and explainable feature breakdown, helping investigators and researchers identify potential links between pseudonymous authors without treating the result as a definitive verdict.

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Cover image for I built Aithena, an engine-agnostic

I built Aithena, an engine-agnostic NPC AI framework in modern C++17. It combines behavior trees, utility AI, GOAP, perception, memory, emotions, relationships, factions, economy, quests, and living-world simulation in one modular system. I also created a WebAssembly demo that runs directly in the browser, visualizing emotional contagion, memory decay, and rumor propagation between NPCs.

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Cover image for I built Context-Bridge, a self-hosted

I built Context-Bridge, a self-hosted shared memory infrastructure for multi-agent AI systems. It replaces oversized transcript passing with governed, task-scoped recall under explicit token budgets. The system combines hybrid retrieval, full provenance, confidence gating, duplicate suppression, contradiction detection, belief revision, agent reputation, procedural memory, and multi-tenant access control. It supports Qdrant, Redis, PostgreSQL, local embedding models, Docker deployment, and a typed Python SDK.

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buse nur akdeniz

İstanbul, Turkey

Mobile & iOS Developer building apps with Swift, Flutter, an

New to Contra

Mobile & iOS Developer building apps with Swift, Flutter, an

Cover image for SafeGuardian is an iOS application

SafeGuardian is an iOS application

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Cover image for Vitrin is a smart wardrobe

Vitrin is a smart wardrobe

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Cover image for Designed and developed a professional

Designed and developed a professional

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Cover image for Vitrin App Backend

Vitrin App Backend

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Own Wilson Emmanuel Dzon

İstanbul, Turkey

Web Designer & Front-End Developer | Grandios Guild

New to Contra

Web Designer & Front-End Developer | Grandios Guild

Cover image for Grandios Guild — Corporate Website Design & Development

Grandios Guild — Corporate Website Design & Development

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Cover image for Website Redesign & Modernization

Website Redesign & Modernization

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Cover image for Professional Landing Page Design & Development

Professional Landing Page Design & Development

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Cover image for Professional UX/UI Website Audit

Professional UX/UI Website Audit

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İstanbul, Turkey

Full Stack Enabler (Web, Mobile, DB, CI/CD)

Full Stack Enabler (Web, Mobile, DB, CI/CD)

Cover image for 34 Method - Backend Service

34 Method - Backend Service

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Cover image for 34 Method - Revamp Design

34 Method - Revamp Design

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Cover image for 34 Method - Mobile App Development

34 Method - Mobile App Development

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Muhammed Fatih Fetvacı

İstanbul, Turkey

Full-stack TypeScript developer | Next.js, Node.js, APIs

New to Contra

Full-stack TypeScript developer | Next.js, Node.js, APIs

Cover image for osu! Beatmap Analyzer Library

osu! Beatmap Analyzer Library

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Cover image for Efmia Corporate Website

Efmia Corporate Website

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Cover image for Hanami Discord Bot

Hanami Discord Bot

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Cover image for osu!guessr

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