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:

  • Assured user identity authentication using cryptographic means
  • Designed security protocols to understand and mitigate potential risks
  • Implemented safe cloud computing solutions with robust authentication
  • Developed secure authentication procedures for application development
  • Carried out penetration tests on corporate networks in order to test its security
  • Investigated security breaches and enabled threats resilience
  • Installed virus removal software and provided reliable back up solutions

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!

From 26,664 reviews, clients rate our Security Engineers 4.9 out of 5 stars.
Hire Security Engineers

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:

  • Assured user identity authentication using cryptographic means
  • Designed security protocols to understand and mitigate potential risks
  • Implemented safe cloud computing solutions with robust authentication
  • Developed secure authentication procedures for application development
  • Carried out penetration tests on corporate networks in order to test its security
  • Investigated security breaches and enabled threats resilience
  • Installed virus removal software and provided reliable back up solutions

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!

From 26,664 reviews, clients rate our Security Engineers 4.9 out of 5 stars.
Hire Security Engineers

Filter

My recent searches
Filter by:
Budget
to
to
to
Type
Skills
Languages
    Job State
    33 jobs found

    I want only in excel I am rolling out an internal brand plan product management of several established brands and future pipeline must include conference-management tool that brings together a shared calendar and a robust to-do system, all built to handle highly sensitive information. The core of the build is a brandable, self-hosted tracker where every session, speaker hand-off, and logistics task lives in one place. Here is what the finished product must do for us: • Task assignment & tracking: create, delegate, and reassign action items with user-level permissions. • Deadline reminders: automated, configurable notifications via email and in-app alerts so nothing slips. • Progress status updates: quick updates, percentage completions, and color-coded indicators ...

    $89 Average bid
    $89 Avg Bid
    41 bids

    The project is related to Service-Oriented Architecture (SOA) and web-service environments, with a focus on protecting service performance and availability using a QoS-aware intrusion detection framework. The work involves detecting malicious traffic that affects service quality, such as denial-of-service, brute-force, and other intrusion behaviors, using machine learning and flow-based network analysis. And for the freelancer, write this: What I need in the technical person: I need a technical freelancer who has strong knowledge in: • Service-Oriented Architecture (SOA) or web-service systems • Network security and intrusion detection • Machine learning / anomaly detection • Python and scientific implementation • Data preprocessing, feature engineering, a...

    $521 Average bid
    $521 Avg Bid
    54 bids

    Hello, I am looking for a developer to create a platform/web app for Astra Transport members. The idea is to have a complete fleet and company management system, accessible on both desktop and mobile devices. Main Features: Company and Employee Accounts: Company data: Tax ID (CUI), Articles of Association, Administrator ID, Transport Manager ( with adding pic/doc ) Employees: separate accounts, individual login, roles and permissions defined by the company manager Each company manager can limit what their dispatchers can see, but we, as Astra founders, must have full access to all member companies Trucks and Trailers: Full details: registration certificate, RCA (insurance), CASCO, leasing, licenses, tachograph, tires with km at purchase Service history: date, service location, in...

    $1348 Average bid
    NDA
    $1348 Avg Bid
    187 bids

    I have an existing Task Management System built with Java, MySQL, HTML, CSS and JavaScript. It already handles user registration, task creation, updates and progress tracking, but I now need a round of polishing and growth. Improvements I want right away involve • giving the interface a cleaner, more responsive look and feel, • tightening performance so pages load quickly even with a large task list, and • hardening security around authentication, role-based access and data storage. On top of that, I’d like to expand the product with new functionality—think calendar-style views, smart notifications or whatever you propose—and connect it with popular collaboration tools (for example Slack, Microsoft Teams or Google services). If you have ideas for se...

    $10 / hr Average bid
    $10 / hr Avg Bid
    50 bids

    I’m ready to launch a WordPress-based platform dedicated to selling my online courses and I need the entire site professionally designed from scratch. The build must feel polished, modern, mobile-responsive, and unmistakably tailored to my brand—not a lightly-tweaked marketplace theme. Core functions I must have: • Secure user registration and login so students can create accounts and track progress • Seamless payment-gateway integration (Stripe or PayPal are fine—open to your guidance) for course purchases • A clean discussion forum area where enrolled students can interact You’re free to choose the best stack of plugins or custom code to achieve this—just keep performance, security, and scalability in mind. I’ll supply course con...

    $19 / hr Average bid
    $19 / hr Avg Bid
    169 bids

    I’m launching an online forum designed to grow into a 1-million-strong community and I need the platform planned, installed, and configured from the ground up. The core objective is simple: create a space where members feel welcome, stay engaged, and can interact safely at scale. Here’s what I already know I want: solid, flexible moderation tools. That means role-based permissions, flagging/report workflows, and an admin dashboard that lets moderators handle issues quickly without touching the server. If the best way to deliver that is with Discourse, phpBB, NodeBB, or another modern stack, I’m open—as long as the solution can scale, integrate single sign-on later, and be optimized for fast page loads. Key milestones I’m picturing: • Pick and justify th...

    $501 Average bid
    $501 Avg Bid
    102 bids

    Admin interface: -Creating carriers: Carrier name, Carrier IPs:Ports (To be allowed where calls to from), Personal Notes. -Adding numbers with CSV File: Range;country;Number;Carrier Payout;Carrier Pay Term;Client Payout;Notes (remarks) -Numbers should be all routed to a local IVR (or a group of IVRs, which will be played randomly) if not allocated to any client. -Numbers page show all details: Range, number, carrier, carrier payout, carrier pay term*, client payout**, to which client it's allocated if it is, and Notes -Search options: search per client allocated numbers, per carrier, per range, per country, per rate (more than or less than or =), per number, etc. -Option to download CSV file numbers of the searched result, or for all if search is reset for all -Select numbers (...

    $116 Average bid
    $116 Avg Bid
    18 bids

    I need an EMI locker app designed to secure Google Workspace data on mobile phones. The app should lock access to the entire phone, ensuring that all data tied to Google Workspace is protected. Key Requirements: - Secure locking mechanism - Integration with Google Workspace - User-friendly interface - Experience with mobile app development - Proven track record with similar past work Please include relevant past work in your application.

    $234 Average bid
    $234 Avg Bid
    24 bids

    Title: Developer Needed – Real-Time Video Extraction & Domain-Limited Embedding Description: I’m looking for an experienced developer to help with a technical solution for a web project. The goal is to extract multiple live video streams in real time from a single authenticated session and make them embeddable on my website. Key requirements: - Capture and manage multiple video streams simultaneously - Streams must be extracted from an active authenticated session - Generate embeddable video players - Embeds must work only on my domain (or on a whitelist of domains that I authorize) - Ensure stable real-time streaming - Preferably implemented using proxying, token control, or domain restriction techniques Nice to have: - Experience with HLS / m3u8 streams - Experience w...

    $161 Average bid
    $161 Avg Bid
    85 bids

    Project Brief: Multi-Instructor LMS Web App with Gamification 1. Project Overview The objective is to develop a high-performance online academy based on WordPress. The platform must support multiple instructors, subscription-based sales (via Stripe), and a comprehensive reward system to incentivize student progress and engagement. 2. Suggested Tech Stack CMS: WordPress (Latest version). LMS Core: Support advanced course management. Multi-Instructor Management: Native LMS Add-on. Memberships & Payments: Paid Memberships Pro or another plugin that does the job well. Payment Gateway: Stripe (configured for recurring subscriptions). Gamification: GamiPress (integrated with the chosen LMS). 3. Functional Specifications A. Multi-Instructor & Commission System Instructor Dashb...

    $4045 Average bid
    $4045 Avg Bid
    170 bids

    I need Grok talking fluently to our dedicated Microsoft SQL Server so that business users can run natural-language, read-only queries through Grok’s interface. The task breaks down into two core pieces of work: • Implement the xAI Grok API on our side and map its request / response cycle to T-SQL. • Establish a rock-solid SSL/TLS-encrypted connection to the database using SQL Server Authentication. The server is already isolated behind our corporate firewall; your job is to add the secure transport layer, handle credential storage safely, and make sure Grok can reach the database without exposing write or admin rights. Acceptance criteria 1. A small PoC script (language of your choice) that accepts a Grok prompt and returns the matching result set from SQL Server. ...

    $488 Average bid
    $488 Avg Bid
    127 bids

    My store was recently compromised and, since then, every attempt I make to change the Shopify admin password fails silently. No error appears inside the admin panel, the “Forgot password” link accepts my request but never sends an email, and the standard help articles haven’t solved the issue. What I need is a Shopify-savvy professional who can: • Successfully reset the primary admin password and verify I can log in again without issues • Diagnose why the reset emails are not being delivered (DNS, sender reputation, or account settings) and restore normal email-flow • Run a quick security check on the store—review staff accounts, 2-factor authentication settings, and recent login history—so I’m sure the hacker no longer has access ...

    $189 Average bid
    $189 Avg Bid
    43 bids

    I already own— or can purchase— the ViserLab “Vinance” script and now need an experienced developer (or small team) to turn it into a production-ready cryptocurrency trading ecosystem that runs smoothly on both web and mobile. Mobile (Flutter) The app must replicate the attached dark-theme screenshots pixel for pixel. Bottom navigation, animations, and every UI detail should line up exactly with those mock-ups; matching the visuals is the top priority. Backend (Laravel) Build or extend a robust admin panel so I can: • oversee user accounts, KYC status, deposits, and withdrawals • adjust individual profit/loss results manually • push platform-wide notices and maintenance messages Core trading modules Please deliver fully working versions o...

    $1435 Average bid
    $1435 Avg Bid
    70 bids

    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.

    $1250 Average bid
    Local
    $1250 Avg Bid
    1 bids

    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...

    $13 Average bid
    $13 Avg Bid
    12 bids

    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...

    $299 Average bid
    $299 Avg Bid
    275 bids

    • 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...

    $179 Average bid
    $179 Avg Bid
    110 bids

    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...

    $1139 Average bid
    $1139 Avg Bid
    77 bids

    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...

    $350 Average bid
    $350 Avg Bid
    40 bids

    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 •...

    $28 Average bid
    $28 Avg Bid
    19 bids

    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.

    $150 Average bid
    $150 Avg Bid
    20 bids

    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...

    $542 Average bid
    $542 Avg Bid
    166 bids

    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...

    $276 Average bid
    $276 Avg Bid
    39 bids

    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...

    $338 Average bid
    $338 Avg Bid
    118 bids
    Create Remote FTP User Setup
    1 day left
    Verified

    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 ...

    $20 Average bid
    $20 Avg Bid
    10 bids

    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.

    $841 Average bid
    $841 Avg Bid
    256 bids

    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...

    $146 Average bid
    $146 Avg Bid
    13 bids

    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...

    $1120 Average bid
    $1120 Avg Bid
    242 bids
    JSF-Driven Java Web Application
    2 hours left
    Verified

    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...

    $19 Average bid
    $19 Avg Bid
    59 bids

    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...

    $60 Average bid
    $60
    11 entries

    Saya benar-benar baru dalam hal ini dan belum tahu langkah apa pun untuk membuat balasan otomatis di Telegram. Saya ingin memiliki sistem balasan otomatis sederhana—cukup untuk menanggapi chat masuk dengan pesan yang sudah saya tetapkan. Yang saya harapkan: • Bot Telegram aktif di akun atau channel saya. • Pesan balasan otomatis dapat saya ubah sendiri nanti (misalnya sapaan awal, info kontak, atau daftar FAQ singkat). • Panduan singkat—langkah demi langkah—agar saya paham cara menambah, mengedit, atau menonaktifkan balasan tanpa perlu kode rumit. • Bantuan konfigurasi dasar keamanan token bot supaya aman digunakan. Saya tidak memerlukan integrasi kompleks; cukup solusi praktis yang cepat dijalankan. Jika Anda bisa menuntun saya lewat panggilan...

    $28 / hr Average bid
    $28 / hr Avg Bid
    1 bids
    configuracion de server
    5 days left
    Verified

    Especialista en Infraestructura (DevOps Freelance) Misión del Puesto: Poner orden en los servidores y asegurar que el ecosistema actual híbrido funcione de forma fluida y sin caídas. El profesional deberá lidiar con la convivencia de nuestro núcleo monolítico en Laravel (que agrupa Backoffice, E-commerce y Gestor de Órdenes) y las aplicaciones satélite desacopladas en React y Node.js. Entregables esperados: Estabilización: Configuración de los servidores para que soporten el tráfico de usuarios sin interrupciones ni cuellos de botella entre las distintas aplicaciones. Contenedores (Docker): Implementación de Docker de forma básica para unificar los entornos de trabajo y despliegue, aislando correc...

    $495 Average bid
    $495 Avg Bid
    65 bids

    Recommended Articles Just for You