Freelancer vs Upwork (2026)
Freelancer vs Upwork (2026) - An Honest, Side-by-Side Comparison for Businesses and Freelancers
Security is a term used to describe the measures taken to protect data and systems from external threats. Security Engineers are professionals who have the expertise and skills to develop, secure and maintain systems and applications. They are essential for any business or organization that wants to protect their sensitive online information from any malicious attack or unauthorized access. Security Engineers are familiar with network architecture, firewall technology, cryptography, risk assessment and compliance procedures.
Here's some projects that our expert Security Engineers made real:
At Freelancer.com, you can find experienced Security Engineers who can help you protect your data, assess risks, and create secure systems. We have a wide range of experts who can meet your needs for security, governance and risk projects. Our Security Engineers have the knowledge, skills and experience that you need have a successful project. If you're looking for professionals who can deliver reliable security solutions, post your project on Freelancer.com today and hire a qualified Security Engineer!
Nga 24,977 vlerësimet, klientët vlerësojnë Security Engineers 4.9 nga 5 yje.Security is a term used to describe the measures taken to protect data and systems from external threats. Security Engineers are professionals who have the expertise and skills to develop, secure and maintain systems and applications. They are essential for any business or organization that wants to protect their sensitive online information from any malicious attack or unauthorized access. Security Engineers are familiar with network architecture, firewall technology, cryptography, risk assessment and compliance procedures.
Here's some projects that our expert Security Engineers made real:
At Freelancer.com, you can find experienced Security Engineers who can help you protect your data, assess risks, and create secure systems. We have a wide range of experts who can meet your needs for security, governance and risk projects. Our Security Engineers have the knowledge, skills and experience that you need have a successful project. If you're looking for professionals who can deliver reliable security solutions, post your project on Freelancer.com today and hire a qualified Security Engineer!
Nga 24,977 vlerësimet, klientët vlerësojnë Security Engineers 4.9 nga 5 yje.Over the past few days I have noticed a sharp, unexplained spike in direct traffic on my corporate website. The pattern is the same worldwide—thousands of repeated page views hitting the same endpoints every few minutes—yet no genuine engagement follows. Because I have no firewall, captcha, or other security layer in place, I suspect an automated script or bot is hammering the site and inflating my analytics. I need a security-minded developer to: • Analyse server logs, analytics data, and DNS records to confirm the source, volume, and behaviour of the suspicious requests. • Pinpoint whether the traffic originates from a compromised script inside the site, a third-party resource, or external botnets. • Recommend and implement practical counter-measures such...
I need an experienced drone pilot with a military or law enforcement background to provide aerial surveillance for a sporting event. The goal is to ensure safety and security throughout the event. Key Requirements: - Experience in aerial monitoring for security purposes - Ability to operate in crowded environments - High-quality video feed in real-time - Coordination with security teams on the ground - Military or law enforcement background - Based in one of these cities: -San Francisco -Dallas -Houston -Seattle -Atlanta Ideal Skills: - Part 107 licensed drone operator - Proficient in drone flight and navigation - Experience with security operations - Good communication skills Please provide examples of previous work and relevant certifications.
Project Description I have already built a fully working web application using Base44. The core functionality and UI are completed. I am looking for an experienced developer to take the existing project and move it into a production environment, including: Deploying the app on a dedicated custom domain Packaging and publishing the app on iOS (Apple App Store) and Android (Google Play Store) The goal is to transform the current working prototype into a fully deployed, production-ready app and website. About the App The platform is a logistics marketplace that connects: Cargo owners looking for trucks Truck owners looking for cargo Users can: Post cargo listings Post available trucks Contact via WhatsApp View listings quickly and simply The concept is similar to a very simplif...
I have built a working prototype of a web application using an AI-assisted development environment. The core functionality already exists and works. I am looking for an experienced developer to help convert this prototype into a production-ready SaaS platform suitable for real users. The focus of this project is code cleanup, architecture improvement, and deployment, rather than building the product from scratch. Current Prototype Includes User login/authentication Assessment-style questionnaire Scoring logic Dashboard Report generation These features are functional but need to be refactored and structured properly for production use. Scope of Work Key areas of work may include: • Reviewing and refactoring the existing codebase • Improving backend architecture and database struct...
• Description The objective is to create a prototype that sends our XML string via AS4 to a destination URL. You can start with <test>dummy</test> for now, but we will test with real xml. You will need to sign with the internal private key certificate and encrypt with the external public key certificate. The other side will decrypt with their private key certificate and verify our signature with our public key certificate. We will give you the certificates. You will then listen to our URL. They will send an async message 10-15 minutes later. We will give you access to our VPS, so the DNS will be routed to the VPS. You will need to verify their signature with their public key and decrypt the message with our private key. Success metrics are that the message is successfull...
Our Magento 2 store is several versions behind, recently fell victim to a hack, and now demands urgent attention. I need an experienced Magento specialist who can: • Bring the core platform fully up-to-date, applying every current security patch and version upgrade without breaking existing functionality. • Audit and upgrade all installed extensions; where upgrades are unavailable, propose safe alternatives or work-arounds. • Perform a comprehensive malware scan, remove every malicious file or script, and close whatever vulnerability was exploited. • Generate a before-and-after security report so I can clearly see what was found and how it was fixed. Once the codebase is clean and current, I also want to migrate the entire site to a new host. We haven’t ch...
Looking for: Senior SAP Joule Developer (Freelance / Contract) Seeking an experienced SAP Public Cloud Consultant / SAP Joule Developer with strong expertise in: * SAP Joule (AI Copilot) & Generative AI use cases * SAP BTP extensibility (CAP, RAP, Fiori) * SAP Build Process Automation / Workflow / Build Apps * SAP Integration Suite (CPI, APIs, Event Mesh) * Side by side extensions & Clean Core architecture * S/4HANA Public Cloud integrations * REST APIs, microservices & cloud native development * IAS / IPS security, CI/CD, DevOps on BTP Nice to have: SAP Datasphere, SAC, AI driven automation Working hrs: 2 to 11 PM IST Long term engagement Budget : Rate: INR 700 to 900 Per hour - 5+ Years (relevant in Joule 1+ Years)
I have a single hash that was exported from a password manager. I’m unsure of the exact algorithm it uses—only that it originates from that application—so step one will be identifying the hash type, then recovering the underlying plaintext. Everything needs to run smoothly on a Linux machine, so please rely on tools that work natively there (Hashcat, John the Ripper, or similar). What I need from you • Perform the crack / decryption and provide the recovered string in clear text. • Supply a brief write-up or script so I can reproduce the process on my own Linux box if ever needed again. I’ll test the result on delivery by feeding the plaintext back into the manager and confirming the match, so accuracy is critical. Let me know which tools you intend ...
I want a customer-friendly Magento 2 site designed primarily to showcase my catalogue of both physical and digital products. The focus is on engaging presentation and smooth browsing, not aggressive selling. Every design choice should prioritize visual clarity, responsive design, and easy navigation. Scope of Work - Magento 2 setup/refinement on my hosting - Custom or customized responsive theme (mobile-first, polished look) - Catalogue configuration for simple, configurable, virtual, and downloadable products - Category structure, smart search, filters - Quick-loading image galleries with support for video/demo downloads - Security basics (admin settings, HTTPS, user roles) - Performance tweaks (caching, image optimization, minification) - Extensions for product variations, reviews, and l...
Building Valuation Data Collection App 1. Purpose of the App This mobile application is intended to help a valuation engineer collect, store, and manage building valuation data during site inspections. The app will allow the user to record property details, building specifications, sketches, images, and fee details in a structured format and automatically store them in cloud storage. The app should enable the user to: Create and manage valuation files for different buildings Capture all necessary technical details Draw building sketches Attach site photographs Store all data in cloud storage Generate and download reports in PDF format The application is intended for tablet/mobile use during field visits. --- 2. Login and Security Login System The app should allow login usin...
我需要一款纯 C 语言编写的 Windows 插件,用来实现“无文件落地”的动态加载与远程执行。核心流程大致如下: 1. 插件启动后先扫当前进程列表,若发现属于“保护列表”的进程即立刻退出,不再继续任何操作。保护列表的具体进程名稍后给你。 2. 若环境安全,插件连到我的服务器,按指令下载 DLL 或 EXE(这两种类型都必须支持)。文件不能写入磁盘,只能在内存中完成 LoadLibrary 注入;完成后即在目标进程里运行。 3. 注入目标需随机挑选系统傀儡进程,但也要保留随时切换到我指定进程的能力,便于后期策略调整。 4. 任务完成后,插件要回传本机机器码并反馈 “成功 / 失败 + 失败原因” 这两级信息,方便我做监控。 5. 为减少逆向风险,请在检测到常见反编译器或调试器时(例如我后续会补充具体名单,当前可先将 C++ 相关工具一并考虑)直接停止下载流程。反调试、反沙箱、反分析逻辑希望能集中在一处,便于我后期更新。 交付内容 • 全部 C 源码、编译脚本及简要文档 • 64-bit 可加载版本(Debug 与 Release) • 测试用示例服务器端代码(最简即可证明下载与注入链路) • 一份注入、回传、错误处理的时序说明 验收标准 • 通过我提供的保护进程测试用例,不会误执行 • 能在指定与随机模式下正确用 LoadLibrary 注入 DLL / EXE • 无磁盘 IO 行为(Process Monitor 验证) • 机器码与执行结果返回格式符合预期 • 在检测到调试 / 反编译环境时,流程终止且无网络请求 如果你具备扎...
Can can be a Theme I will buy else I need a fully-functional forum set up on WordPress, styled to match my brand and ready for an active community. The job covers everything from choosing and configuring the best forum plugin (bbPress, BuddyPress, or a comparable option) to designing a clean, responsive layout that works seamlessly on desktop and mobile. Once the forum is live, I will rely on you for ongoing tweaks—updating the look as needed, adding new features, tightening security, and keeping performance smooth even as membership grows. Clear documentation of the setup and any custom code is essential so I can follow what has been done. Deliverables • Installed and configured WordPress forum on my host • Custom theme or child-theme for the forum pages •...
I need an expert to configure FreeRADIUS to act as a proxy. Requirements: - Support for PAP/CHAP authentication protocols. - Proxy to an LDAP backend for authentication. - Handle username and password user information. Ideal Skills and Experience: - Proficient in FreeRADIUS configuration. - Experience with LDAP integration. - Knowledge of PAP/CHAP protocols.
مطلوب مبرمج عربي حصراً للعمل على هذا المشروع لسهولة التواصل وتعديل اللغة الكردية ودعم زين كاش العراق." Project Title: Cross-Platform (Android & iOS) Automated Reward App "DinarX" - High Security & Local Iraq Features Project Description: I am looking for a professional Full-Stack developer (Expert in Flutter or React Native) to build/customize a dual-platform Reward App (Android & iOS) based on the Cash Rocket logic but with advanced automated features for the Iraqi market. 1. Cross-Platform Development (Android & iOS): Build a unified app for both Google Play Store and Apple App Store. Full Multi-Language Support: Professional localization in Arabic and Kurdish (Sorani) with RTL (Right-to-Left) alignment. 2. Automated Systems & Offerwalls: SDK/API...
Overview: The system must be architected to meet enterprise CPaaS performance. Post award of project you will be shared a GitHub Repo update to be pushed there only. The scope includes backend API development, database schema design, & webhook hooks. The service must be built as a extension to existing service to ensure seamless, scalable, and repeatable integration into the main platform. 1. API & Webhooks for Clients • Public API endpoints for sending campaigns, managing templates, and fetching reports. • Webhook support for: • Delivery receipts (DLRs) • Incoming messages/user replies • Sustain minimum 500–1,000 send requests/sec under normal load. • Burst handling up to 3,000 TPS with graceful queuing (no message loss). 2. Integration Layer...
1. JOB POST: Odoo SaaS Security Configuration – QMS User Roles (3‑Tier Access Model) Project Overview We are a small company based in the UK and use Odoo to manage our business. We have a requirement to add 3 users to the system in Odoo. See below. We need an experienced Odoo SaaS security specialist to design and configure a three‑level permission model that is clean, audit‑friendly, and fully compatible with SaaS limitations (no backend access, no custom modules, no Studio). Required Deliverable: 3‑Level QMS Security Model 1. QMS Read‑Only (External Auditors / Inspectors) - Read‑only access to QMS menus and documents. - No create/edit/delete. - No access to non‑QMS modules. - Must avoid Portal/Public menu leakage. - Must be safe for ISO/FDA/MHRA audits. 2. QMS Contributor (Inte...
I’m putting together a lightweight yet secure meta-editing environment focused on code. The core need is a true code editor—nothing WYSIWYG or plain-text—able to read and write encrypted project files so that source remains protected end-to-end. Here is the essence of what I’m after: • A desktop or web-based editor purpose-built for coding tasks. • Built-in encryption/decryption of files or project folders using modern, open algorithms (AES-256 or similarly strong). • Smooth, familiar coding workflow: open an encrypted file, make edits, save, and the file is automatically re-encrypted without exposing plaintext on disk. • Clean, well-documented codebase so I can extend the tool later. Technology stack is open for discussion; feel free...
I need someone to connect to my AWS server over TeamViewer (or another live remote-control session) and create a new FTP user in the existing vsftpd setup. The server is running Nginx; the underlying OS wasn’t recorded, but you will see it once connected. What I need done: • Add a new FTP account that is locked to a single directory I will specify. • Ensure the account has read-and-write permissions inside that path while being unable to navigate elsewhere (proper chroot / jail). • Restart or reload vsftpd safely and confirm the user can log in, upload, download, and list files from an FTP client. I’ll provide the AWS console access, the directorypath, and TeamViewer credentials. Please be comfortable working live while I watch and able to explain what ...
I'm seeking an experienced developer to create a client portal for tracking construction project lifecycles. Essential Features: - Progress Tracking: Visual dashboards to monitor project status. - Document Sharing: Secure upload/download for project-related documents. - Task Assignments: Assign and manage tasks for clients, internal team, and external contractors. Ideal Skills: - Strong experience in web development. - Proficiency in building secure client portals. - Familiarity with construction project management workflows. Looking for someone who can deliver a user-friendly and efficient solution.
Scenario Background: The scenario assumes that you are working as a security expert for a fictional company, Acme Coffee Company. The company includes several roles, including Bruno (CEO), Spike (Vice President of Sales), Eilik and Eilika (Sales), Loki (System Administrator), and Avery (Marketing). Loki has built a new company server, and Bruno has hired you to conduct a comprehensive security analysis and assessment of that server and submit a complete report. The final report should include your findings, techniques, graphics, and methodology, along with recommendations for improving any security issues identified. Video Overview: The instructor explains that the final project will provide a target machine personally built by the instructor to represent the Acme company environment. Yo...
Project Description – QR Keychain Login Chat Application This project expands on the concept of existing QR-code-based web access systems by integrating the technology into a secure web chat application. Each user is provided with a physical keychain that contains a unique QR code linked to their personal account. Instead of using traditional usernames and passwords, users log in by scanning their assigned QR code with their device. When the QR code is scanned, it directs the user to their personalized page within the chat web application and automatically authenticates their identity. This method creates a faster, password-free login experience while also increasing security by requiring possession of the physical QR keychain. The system is designed so that every QR code is uniquely...
I’m ready to move from concept to code on a Java web application and I need a developer who feels at home in JavaServer Faces. The entire project will live in the Java EE ecosystem, so comfort with standard servlet containers, JDBC or JPA for data access, and front-end component libraries such as PrimeFaces or OmniFaces will be important. Here’s what I’m looking for you to handle: • Set up the JSF project structure (Maven or Gradle) • Build the core pages and managed beans that showcase best-practice navigation, validation, and session handling • Wire in persistence so the app reads/writes to a relational database (MySQL or PostgreSQL—your recommendation is welcome) • Implement basic security: login, role-based access, and CSRF protectio...
I’m spearheading a new custom web application and want a developer who can guide the project end-to-end—from the first wireframe to production deployment and ongoing maintenance. The goal is a fast, responsive experience that feels effortless on any device, scales easily, and remains secure against common threats. Here’s what I’ll rely on you for: • Translating product requirements into clear technical architecture • Writing clean, well-documented code and setting up version control from day one • Integrating external APIs, databases, and any third-party services the product demands • Optimising performance, accessibility, and SEO fundamentals as you build • Thorough cross-browser and device testing, followed by systematic debugging...
I am building a full-scale web application written in pure PHP—no frameworks—paired with MySQL (or MariaDB) and modern vanilla JS on the front end. The project is completely custom, so we will define the architecture together, but several core components are non-negotiable. At the heart of the system I need a solid user authentication flow that supports registration, email/OTP verification, password resets, and social-login extensibility. Every record we store must be tied into a role-based access control layer so I can fine-tune permissions for admins, managers, HR staff, accountants, and standard users. Data will drive the app, so robust CRUD screens, advanced filtering, and downloadable reports (CSV, PDF) are essential. I expect clean, well-commented code, prepared stateme...
I need a reliable proctor in Ahmedabad to oversee a professional Oilfield Engineers exam that will be held on-site. Your role is to safeguard the integrity of the session from the moment candidates arrive until all papers are collected and secured. On exam day you will: – Verify each candidate’s ID against the provided roster. – Brief them on the rules supplied by the testing body. – Remain in the room for the full duration, watching for any irregularities without disrupting candidates. – Log attendance and write a concise incident report even if nothing unusual occurs, then scan-email it to me within 24 hours. The testing vendor will ship the sealed materials to the venue; you only need to bring a laptop or tablet capable of basic documentation, a sma...
I want to open a new trading account and get it ready for live use, but I’d prefer someone on the ground in Bangladesh to guide me step-by-step. The immediate task is straightforward: create the account in my name and make sure it is fully operational. Because I already trade on Binance, we can speak the same crypto language—USDT transfers, basic blockchain concepts, and exchange workflows won’t need explaining. Here’s what I expect from you: • Walk me through the sign-up flow in real time (video call or screen-share is fine). • Complete KYC and regional verification smoothly, using best practices you’ve tested yourself. • Enable all basic security layers—email/SMS confirmation and, if time allows, Google Authenticator 2FA—s...
I need an expert who has successfully navigated Amazon’s SP-API PII approval process to walk my team and me through it from start to finish. Our SP-API application is already created but still sits in a “not verified” state, and we want to clear every compliance hurdle so we can lawfully retrieve PII and use it to deliver genuinely personalized customer interactions that elevate our support experience. You’ll explain each Amazon security requirement in plain language, help us prepare the technical and policy documentation, and review our architecture for encryption, data retention, network controls, and logging. Once everything is in place, you’ll guide us through the submission steps, respond to any follow-up questions from Amazon, and stay with us until app...
My site is suddenly being flagged with a phishing warning and visitors see a “risky site” message. I haven’t touched the code or added new pages in quite some time, so I need a fresh set of expert eyes to uncover what’s triggering the alert and to get the flag removed. Small task, couple of hours research by someone with the right skills. Current situation • Phishing warning appears on major browsers and link-sharing platforms. • No recent content or code updates on my end. • The site does rely on a few third-party plugins/integrations that could be a vector. What I’m after I want a concise security assessment that pinpoints the root cause—whether it’s injected scripts, compromised plugin files, mixed-content issues, or so...
I’m ready to kick off a new website project and want it executed to the same standards I keep for my own work—fast load times, airtight security, and a seamless user experience across modern browsers and devices. Here’s what matters to me: • Performance: clean, lightweight code and smart asset optimisation so pages render instantly. • Security: industry-standard hardening (HTTPS, secure headers, sanitised inputs, up-to-date dependencies). • UX/UI polish: responsive layouts, accessible navigation, and intuitive flows that feel just as smooth on mobile as on desktop. I’ll supply brand assets, wireframes, and content; you’ll handle the build, integrations, and final deployment. The finished site should be easy for non-tech users to upda...
Hi, I am looking for an experienced DevOps / Linux server optimization expert for a LIVE high-traffic production website. Please apply only if you have real experience handling 50,000+ concurrent users, Cloudflare setups, and strong security hardening. IMPORTANT: The website is already LIVE and fully uploaded. CyberPanel is already installed and running. I only need optimization, scaling, and security improvements (NOT fresh installation). Current Infrastructure: • Dedicated main server: 64GB RAM, 1TB NVMe () • Offshore VPS: 1GB RAM (to be used as reverse proxy/security layer) • Domain provider: • Panel: CyberPanel + OpenLiteSpeed (already installed) • Laravel/PHP website (already live) • Need full integration My Requirements: PERFORMANCE: • Extreme...
I am looking for a creative video designer who can create a fun and colorful birthday invitation video for a child’s birthday party. The video should be attractive, playful, and suitable for kids. Requirements: - Duration: 20–30 seconds - Theme: Colorful, fun, and kid-friendly (cartoon/animation style preferred) - Include: Child’s name, age, date, time, venue, and RSVP details - Background music: Happy birthday or cheerful kids music - High-quality video suitable for sharing on WhatsApp and social media Deliverables: - Final video in MP4 format - Editable file (optional but preferred) If you have experience creating birthday invitation videos, please share samples of your previous work. Looking forward to creative ideas!
I’m building a secure, end-to-end doctor–patient consultation platform and need a developer (or small team) who can turn a functional spec into a production-ready web or mobile app. Both doctors and patients will create their own accounts, verify their identities, and sign in through role-based authentication before they can do anything else, so rock-solid auth and data protection are non-negotiable. Core functionality I must see on day one: • Appointment scheduling – patients pick slots from a doctor’s calendar, receive confirmations and reminders, and both sides can reschedule or cancel. • Patient records management – each consultation should automatically attach to the patient’s profile, supporting file uploads (lab results, images) and d...
I need a full-featured ecommerce platform, built in PHP with a PostgreSQL backend, that feels as fluid as Amazon yet remains focused on the domestic Indian market. All products and their sub-categories must live in the database and be created or modified through a dedicated admin dashboard—no code edits or CSV uploads, just real-time forms that write directly to PostgreSQL. Core user-side features come first: powerful product search with layered filters (category, price, trending, etc.), a secure payment gateway integrated end-to-end, and authentic customer reviews with star ratings. Speed and accuracy of those search filters are critical, so efficient SQL queries and smart indexing will be expected. On the back end I want an analytics-style dashboard that lets me watch sales volum...
Dear Partners, I am currently seeking a fully functional, production-ready white-label neo-banking SaaS platform that can be rapidly deployed and customized with our branding (logo, colors, visual identity). Our objective is to significantly accelerate time-to-market by integrating an existing, mature solution rather than engaging in a long and resource-intensive development cycle. The ideal solution should: Be fully operational and already deployed in live environments Support complete white-label customization Be easily integrable with third-party banking APIs and financial partners Meet high security and compliance standards, particularly PCI DSS compliance Demonstrate strong governance, regulatory awareness, and fintech best practices Offer scalability and long-term technical ...
We are a new SaaS startup looking for a rigorous security specialist to perform a **comprehensive end-to-end security audit**. Our mobile app (iOS & Android) is our core product and requires deep-dive scrutiny, while our landing pages and staff admin panel need a focused vulnerability assessment to ensure total ecosystem integrity. ### **The Scope of Work** We need more than a generic automated scan; we require a blend of manual penetration testing and structured configuration review. * **Mobile App (Deep Dive):** Comprehensive testing based on the **OWASP Mobile Application Security (MAS)** framework. This includes binary analysis, session management, local data storage security, and API communication. * **Web & Admin Panel:** Vulnerability assessment of the staff-facing das...
Freelancer vs Upwork (2026) - An Honest, Side-by-Side Comparison for Businesses and Freelancers
Get your product into the hands of test users and you'll walk away with valuable insights that could make the difference between success and failure.