Freelancers using GitHub in İstanbulFreelancers using GitHub in İstanbul
ProjectsPeople
Ahmad Essam's avatar
Ahmad Essam
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.
0
91
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.
0
57
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.
0
51
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.
1
0
115
GitHub(4)
Bilal Çolak's avatar
Bilal Çolak
İstanbul, Turkey
Full-Stack Developer | Python, React & AI Automation
New to Contra
Full-Stack Developer | Python, React & AI Automation
Cover image for Go Network Game — Multiplayer Java Desktop Game
Go Network Game — Multiplayer Java Desktop Game
0
0
Cover image for Markenza | WordPress Website Design & SEO Optimization
Markenza | WordPress Website Design & SEO Optimization
0
0
Cover image for Sentiment Analysis — Reusable Python ML Pipeline
Sentiment Analysis — Reusable Python ML Pipeline
0
0
Cover image for Studiqo — Smart Study Planning Platform
Studiqo — Smart Study Planning Platform
0
0
GitHub(1)
Kerem PARLAKGUMUS's avatar
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
0
2
Cover image for Product Strategy & Market Alignment
Product Strategy & Market Alignment
0
2
Cover image for Agile Project Consultation for FinTech Startup
Agile Project Consultation for FinTech Startup
0
4
Placeholder project card media
View more →
GitHub(1)
Baran Celik's avatar
Baran Celik
proİstanbul, Turkey
Software Developer | Web Apps & API Integrations
New to Contra
Software Developer | Web Apps & API Integrations
Cover image for Personal Developer Portfolio
Personal Developer Portfolio
1
2
178
Cover image for Tracepoint — API & Webhook
Tracepoint — API & Webhook Workbench
1
95
Cover image for Flowdesk — AI Support Triage
Flowdesk — AI Support Triage Dashboard
0
95
Cover image for ApexLeadsData — Custom-Coded B2B Lead
ApexLeadsData — Custom-Coded B2B Lead Generation Website
0
122
GitHub(4)
Furkan Güngör's avatar
Furkan Güngör
İstanbul, Turkey
Cloud & DevOps engineer (AWS, Kubernetes) and app developer
New to Contra
Cloud & DevOps engineer (AWS, Kubernetes) and app developer
Cover image for Open source: fix merged into
Open source: fix merged into Apache Superset. I hit this bug in a production deployment: CSV exports ignored the configured encoding after Werkzeug 3 removed Response.charset, so Excel garbled every non-ASCII character. I traced the root cause, fixed the response class so the configured encoding is applied explicitly, and got it reviewed and merged upstream (apache/superset#40801).
0
12
Cover image for AWS start/stop scheduler: an open-source
AWS start/stop scheduler: an open-source tool I wrote that starts and stops tagged AWS resources on a schedule, so dev and test environments aren't billed around the clock. Two Lambdas handle EC2, RDS, Aurora/DocumentDB/Neptune clusters and ECS services; you tag a resource and set a start and a stop cron. github.com/Bungic/aws-start-stop-scheduler
0
19
Cover image for Niyyah: a prayer companion app
Niyyah: a prayer companion app I designed, built and shipped end to end for iOS and Android. Prayer times with adhan reminders, duas and home-screen widgets, in 10 languages. Free on the App Store and Google Play.
0
8
Cover image for Monthly AWS cost report in
Monthly AWS cost report in Slack: an open-source Lambda I wrote that compares the last 30 days of AWS spend with the 30 days before and posts a short summary to Slack, with threaded detail on per-service changes, Reserved Instance health and Savings Plans coverage. One Lambda, one cron, one channel. Python 3.12, MIT licensed.
0
16
GitHub(2)
Ulaş Çiçek's avatar
Ulaş Çiçek
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.
0
32
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.
0
61
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.
0
28
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.
0
32
GitHub(3)
buse nur akdeniz's avatar
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
0
2
Cover image for Vitrin is a smart wardrobe
Vitrin is a smart wardrobe
0
5
Cover image for Designed and developed a professional
Designed and developed a professional
0
2
Cover image for Vitrin App Backend
Vitrin App Backend
0
3
GitHub(1)