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Daniel Mazhara's avatar
Daniel Mazhara
Dnipro, 49000
Web SaaS Development UX/UI Design Game Design Development
21
Followers
Web SaaS Development UX/UI Design Game Design Development
Cover image for Cusspy - Secure Live Video Chat Application Development
Cusspy - Secure Live Video Chat Application Development
1
2
135
Cover image for Development of Gameplay Features for Pro League Soccer
Development of Gameplay Features for Pro League Soccer
1
1
11
Cover image for Pour & Solve: Water Sorting Game Development
Pour & Solve: Water Sorting Game Development
1
2
12
Cover image for Aureon SaaS B2B Design and Development
Aureon SaaS B2B Design and Development
1
8
.NET(3)
Stanislav Scerbatiuc's avatar
Stanislav Scerbatiuc
Moldova
Senior .NET Fullstack Developer
$50k+
Earned
1x
Hired
5
Followers
Senior .NET Fullstack Developer
Cover image for freelance
freelance
0
18
Cover image for AHB IT Solutions
AHB IT Solutions
0
7
Cover image for IT Trend
IT Trend
0
6
Cover image for PriceEasy
PriceEasy
0
38
.NET(4)
Syed Ahmer Shah's avatar
Syed Ahmer Shah
Hyderabad, Pakistan
Bringing Your Ideas to Life with Modern, Custom Websites
5.0
Rating
5
Followers
Bringing Your Ideas to Life with Modern, Custom Websites
Cover image for Syed Ahmer Shah developed a
Syed Ahmer Shah developed a secure and scalable Digital Banking & FinTech Mobile Platform that brings payments, money transfers, digital accounts, card management, budgeting, and everyday financial services together in one intuitive cross-platform application. The project demonstrates expertise in Mobile Application Development, FinTech Software Development, Digital Banking Solutions, Banking Software Engineering, Custom Software Development, Backend Development, Cloud Infrastructure, and UI/UX Design. The platform was designed to provide individuals and businesses with convenient digital financial tools while maintaining strong security and reliability. Users can open and manage digital accounts, transfer funds, send and receive money, handle physical and virtual payment cards, pay bills, and review detailed transaction activity. Financial management features allow users to monitor spending, create budgets, analyze expenses, and receive real-time financial insights. The platform also supports QR-based payments, biometric login, KYC verification, instant transaction alerts, and secure payment processing to provide a comprehensive digital banking experience. A cloud-native backend supports secure API connectivity, real-time transaction synchronization, payment gateway integrations, financial analytics, authentication services, and centralized administration. The administrative dashboard provides authorized teams with tools for managing customers, accounts, transactions, payments, compliance processes, and financial reports. The architecture is optimized for high availability, data protection, and scalable operation across Android and iOS devices. This project showcases Syed Ahmer Shah’s capability to develop digital banking applications, FinTech platforms, mobile banking systems, payment applications, digital wallet solutions, and enterprise financial software for financial institutions, FinTech startups, payment providers, and digital finance businesses. Technologies Used: React Native, Node.js, Express.js, PostgreSQL, Firebase, AWS Cloud, REST APIs, Payment Gateway Integration, KYC Verification, Push Notification Services. Services Provided: Mobile App Development, Android App Development, iOS App Development, React Native Development, FinTech App Development, Digital Banking App Development, Digital Wallet Development, Payment App Development, Banking Software Development, Backend Development, API Development, UI/UX Design, Cloud Infrastructure Development. Keywords: Digital Banking App Development, Mobile Banking App Development, FinTech App Development, Banking Software Development, Digital Wallet Development, Payment App Development, Mobile App Development, React Native Development, Android App Development, iOS App Development, Financial Software Development, Digital Payments, Money Transfer App, KYC Integration, Payment Gateway Integration, Node.js, Software Engineer.
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46
Cover image for Syed Ahmer Shah developed a
Syed Ahmer Shah developed a comprehensive Expense Tracking & Personal Finance Mobile Platform designed to help individuals organize their money, monitor spending, build savings, and work toward financial goals from a single secure application. The cross-platform solution combines budgeting tools, financial analytics, transaction management, and personalized insights for Android and iOS users. The project demonstrates expertise in Mobile Application Development, FinTech Software Development, Personal Finance Technology, Custom Software Development, Backend Engineering, and UI/UX Design. The platform was created to simplify everyday financial management while giving users a clearer understanding of their spending and saving patterns. Users can record and monitor income and expenses, connect and manage multiple accounts or digital wallets, establish monthly spending limits, analyze cash flow, and organize transactions into categories. Additional functionality includes savings goals, spending insights, financial summaries, detailed reports, and interactive analytics dashboards. AI-powered budgeting recommendations can help users identify spending patterns and make more informed decisions about their finances. A scalable cloud infrastructure supports secure authentication, encrypted financial information, real-time synchronization, automated transaction processing, financial reporting, intelligent analytics, and push notifications. An administrative dashboard provides centralized controls for managing users, accounts, transactions, and reports. The application is designed to maintain strong security, responsiveness, and reliability as the user base grows across Android and iOS. This project showcases Syed Ahmer Shah’s ability to develop FinTech applications, expense management platforms, personal budgeting solutions, financial analytics tools, and customized money-management software for startups, financial technology companies, service providers, and digital businesses. Technologies Used: React Native, Node.js, Express.js, Firebase, PostgreSQL, AWS Cloud, REST APIs, Secure Authentication, Financial Analytics, Push Notification Services. Services Provided: Mobile App Development, Android App Development, iOS App Development, React Native Development, FinTech App Development, Personal Finance App Development, Expense Tracker Development, Budget Management Software Development, Custom Software Development, Backend Development, API Development, UI/UX Design, Cloud Infrastructure Development. Keywords: Expense Tracker App Development, Personal Finance App Development, Budget Tracker App, FinTech App Development, Mobile App Development, React Native Development, Android App Development, iOS App Development, Money Management App, Financial Management Software, Expense Analytics, Budget Planning App, Node.js, Firebase, PostgreSQL, AWS, REST API, Custom Software Development, Software Engineer.
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72
Cover image for Syed Ahmer Shah developed a
Syed Ahmer Shah developed a secure Islamic FinTech & Digital Wallet Application designed to deliver ethical and Shariah-compliant financial services through a modern mobile platform. The cross-platform solution brings digital payments, wallet management, savings, financing, and financial tracking together in one accessible experience for Android and iOS users. The project demonstrates expertise in FinTech Application Development, Mobile App Development, Digital Wallet Solutions, Islamic Banking Software, Custom Software Development, Backend Engineering, and UI/UX Design. The platform was designed to support individuals and businesses seeking transparent financial tools aligned with Islamic finance principles. Users can create and manage digital wallets, send and receive funds, complete secure transactions, undergo KYC verification, establish savings targets, and monitor their financial activity. The application also provides access to interest-free financing options, community-based savings groups, and Shariah-compliant financial products. Businesses can submit financing requests, while users can review transaction histories, access financial insights, and manage their accounts through a straightforward mobile interface. The platform is powered by scalable cloud infrastructure featuring secure authentication, encrypted financial operations, digital wallet management, payment processing, KYC workflows, automated savings functionality, real-time notifications, financial analytics, and administrative controls. The management dashboard enables authorized teams to oversee users, transactions, financing applications, compliance processes, and financial reports. The system is engineered to provide dependable performance, data protection, and scalability across Android and iOS environments. This project showcases Syed Ahmer Shah’s capability to develop Islamic FinTech platforms, digital banking applications, mobile wallet systems, financial management solutions, secure payment platforms, and customized financial software for startups, financial institutions, Islamic finance providers, and digital banking businesses. Technologies Used: React Native, Node.js, Express.js, Firebase, PostgreSQL, AWS Cloud, REST APIs, Payment Gateway Integration, KYC Verification, Push Notification Services. Services Provided: Mobile App Development, Android App Development, iOS App Development, React Native Development, FinTech App Development, Islamic Banking Software Development, Digital Wallet Development, Financial Management Software Development, Backend Development, API Development, UI/UX Design, Cloud Infrastructure Development.
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Cover image for Inside the AI Machine: Vectors, Attention & RAG
Inside the AI Machine: Vectors, Attention & RAG
1
13
.NET(3)
Muhammad Abaidullah's avatar
Muhammad Abaidullah
Lahore, Pakistan
Hi, I'm Muhammad Abaidullah, a Full Stack Software Engineer.
New to Contra
Hi, I'm Muhammad Abaidullah, a Full Stack Software Engineer.
Cover image for | Enterprise School Management &
| Enterprise School Management & Digital Assessment System | Developed and enhanced an enterprise-grade, scalable School Management System designed to streamline academic operations, digital assessments, and institutional reporting. The system was built using Angular (TypeScript) for the frontend, .NET for backend APIs, and MySQL as the database. Key Features: Role-Based Multi-User System Principal dashboard for institutional insights, reports, and monitoring Teacher portal for generating tutorials, worksheets, and assessments Student portal for attempting quizzes, submitting responses, and tracking progress Digital Assessment & Content Management Tutorial and worksheet assignment to specific classes and sections Teacher-driven paper/quiz generation and class-level distribution Student submission workflows with evaluation tracking Advanced Reporting & Analytics Student Profile Reports and Master Reports with filtering (class, subject, date range) Teacher and Student activity history tracking Performance insights including assigned, completed, and pending work Export functionality (PDF/Excel) for institutional reporting Teacher Evaluation System Configurable assessment forms for teacher performance monitoring Structured evaluation criteria with result tracking Complaint & Feedback Management Built-in complaint portal with categorized tracking (received, satisfied, unsatisfied) Transparency in issue resolution workflows Administrative Controls Student migration between classes/sections Section and session management Teacher account and class assignment management School profile configuration and institutional settings Learning Resources Module Centralized access to tutorials and educational content for different classes Scalability & System Enhancement Refactored and optimized existing architecture for better scalability Improved performance and modularization of features Enhanced user experience across dashboards and workflows
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Cover image for Developed an enterprise-grade, scalable web
Developed an enterprise-grade, scalable web application for academic institutions to manage digital paper generation and assessment workflows using Angular (TypeScript) for the frontend and .NET for backend APIs, with MySQL as the database. The system supports a complete multi-role ecosystem including Admin, Principal, Teacher, and Student portals. It enables centralized management of schools, classes, subjects, and academic content, while providing seamless paper generation, assignment, and evaluation processes. Role-based access control ensures secure and efficient operations across different user levels. Key features include: Multi-role system (Admin, Principal, Teacher, Student) Manual and automated paper generation workflows Class, subject, and school management modules Paper assignment and online quiz/assessment system Student attempt and submission tracking Principal dashboard for paper history, reports, and analytics Lesson planning and academic content organization Centralized admin controls and system configuration This project demonstrates strong expertise in full-stack development, system architecture design, and building enterprise-level academic management and assessment solutions.
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Cover image for Developed an enterprise-grade, scalable web
Developed an enterprise-grade, scalable web application for real-time monitoring and management of oxygen tank fleets using Angular (TypeScript) for the frontend and .NET for backend APIs, with MySQL as the database and deployed on Microsoft Azure. The system provides live telemetry dashboards, tank inventory tracking, alarm monitoring, and user activity auditing. It includes role-based access control, configurable alert mechanisms, and detailed reporting modules to ensure operational efficiency and safety compliance. Key features include: Real-time telemetry monitoring with status classification (Normal, Warning, Critical) Tank fleet management (mobile & stationary units) Role-based permissions and user management Alarm system with notifications, response tracking, and logs Login audits and session tracking for security Cloud deployment on Azure ensuring scalability and reliability This project demonstrates strong experience in full-stack development, cloud deployment, system design, and building enterprise-level monitoring solutions.
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Cover image for I developed Works ERP, a
I developed Works ERP, a complete web-based workshop management system designed to streamline inventory control, production tracking, stock movement, reporting, and administrative operations for a manufacturing/workshop environment. The system includes a full Production Module where users can issue raw materials for finished products or parts, receive production against issued batches, manage material returns, review production losses, and configure product/parts recipes. It helps maintain accurate production quantities, pending batches, received quantities, shortages, and material usage. I also implemented Reports & Stock Balance Modules including stock ledger, production summary, raw material stock balance, product stock balance, machine spare parts stock balance, and parts stock balance. These modules allow users to track item-wise stock movement, current balances, production history, quantities, prices, and total stock value with filters and searchable reports. The Admin Operations Module includes user management, permission controls, login audits, and login session tracking. It provides role-based access control, user activity monitoring, and secure permission handling for different application features. Additionally, the system includes a Drawing Module for assigning and managing drawing numbers, die numbers, revision history, and references for finished products and parts. This project was built to improve workflow accuracy, reduce manual inventory errors, provide real-time production visibility, and give management better control over workshop operations through a clean and professional web interface.
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49
.NET(4)
Abdul Nafay Sarmad's avatar
Abdul Nafay Sarmad
Karachi, Pakistan
Cybersecurity engineer and software developer building robus
New to Contra
Cybersecurity engineer and software developer building robus
Cover image for Most companies don't need another
Most companies don't need another 80-page security report. They need someone to tell them: What can actually be exploited? What could it cost us? And what should we fix first? That's the difference between checking a cybersecurity box and actually improving your security. When I assess an application or infrastructure, I'm not interested in filling a report with 50 low-impact findings just to make it look impressive. I care about attack paths. → Can authentication be bypassed? → Can one compromised account lead to something bigger? → Are APIs exposing data they shouldn't? → Can permissions be chained into privilege escalation? → Are cloud or infrastructure misconfigurations creating an easy entry point? → Would your monitoring actually notice an attacker? And most importantly: What should your team fix first? That's the approach I bring to cybersecurity work — whether it's penetration testing, security audits, SOC/security monitoring, or security consulting. I'm currently taking on new projects through Contra. If you're building a SaaS product, web application, API, or growing infrastructure and you're unsure how it would hold up against a real attack, send me a message. I'll happily take a look at what you're building and tell you where I'd start.
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Cover image for ShadowForge is an adversary-emulation and
ShadowForge is an adversary-emulation and security-validation platform I built to help security teams model attack scenarios, visualize activity, correlate threat intelligence, and evaluate defensive visibility from a single operations interface. The platform brings together scenario orchestration, network visualization, threat intelligence, MITRE ATT&CK mapping, enterprise identity simulation, analytics, and reporting into one unified workflow. I designed the application around modular simulation components so authorized lab and security-validation exercises can be configured, observed, and translated into useful defensive findings rather than scattered logs and manual notes. Key engineering work included: Centralized security operations dashboard Configurable adversary-emulation scenarios Reconnaissance and environment-discovery simulation Lateral-movement and persistence scenario modeling Live execution-event visualization Network topology and host mapping MITRE ATT&CK technique mapping Threat-intelligence and IOC enrichment Enterprise user simulation for realistic lab scenarios Security analytics and severity tracking Automated findings and report generation Modular architecture designed for controlled security testing ShadowForge turns an authorized security exercise into something measurable: operators can configure a scenario, observe activity as it happens, correlate findings with threat intelligence and ATT&CK techniques, and produce structured results for defensive analysis. Built for controlled labs, security validation, and authorized adversary-emulation environments.
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Cover image for Vexis is a custom x86-64
Vexis is a custom x86-64 binary analysis and reverse-engineering platform I built from the ground up in Rust, with a .NET desktop frontend for interactive analysis. Instead of wrapping an existing disassembly library, I implemented the core instruction-decoding pipeline myself, including legacy and REX prefixes, ModR/M, SIB addressing, RIP-relative addressing, instruction boundaries, and control-flow instructions. From that decoded instruction stream, Vexis reconstructs basic blocks, functions, and typed control-flow graphs, calculates cyclomatic complexity, identifies anti-disassembly patterns, and generates structured analysis reports. The visual frontend turns the analysis engine into a usable product: users can inspect full disassembly, explore function-level CFGs, review complexity and control-flow statistics, and analyze entire batches of binaries from one interface. Key engineering work included: Custom x86-64 instruction decoder written in Rust Linear-sweep and recursive-descent analysis strategies Basic-block and function recovery Control-flow graph generation and visualization Cyclomatic complexity and binary statistics Anti-disassembly detection Batch analysis across multiple binaries JSON, Markdown, and Graphviz reporting Differential testing and fuzz testing of the decoder .NET GUI communicating with the Rust engine across a clean process boundary The result is more than a frontend demo: it is a complete analysis pipeline that goes from raw PE64 machine code to searchable disassembly, recovered program structure, visual control flow, and automated reports.
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Cover image for AbyssGate is an educational x64
AbyssGate is an educational x64 assembly security research project built to explore low-level Windows internals and defensive security concepts. The project demonstrates position-independent assembly, Windows API resolution, memory management, system-call research, and modular framework design. It showcases my ability to work close to the operating-system layer, understand Windows security architecture, and build security-focused tooling from the ground up
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.NET(3)