Security Jobs

I need a production-ready mobile wallet that lets users store a variety of cryptocurrencies in one place. The core requirement is a clean, intuitive interface for holding multiple assets, synced seamlessly across both iOS and Android. Security must begin with rock-solid PIN protection on every sensitive action—unlocking the app, initiating a transfer, or exporting a private key. If you have proven techniques to layer Biometric or 2-FA on top without sacrificing speed, feel free to propose them, but PIN security is the baseline I will accept. A single codebase such as React Native or Flutter is ideal for faster parallel releases, though native Swift/Kotlin solutions are welcome if they give measurable speed or UX advantages. The finished product has to pass TestFlight / Play Consol...

I already have a working prototype of an internal POS app created with on a React + Supabase stack. What I now need is the last mile: turning the prototype into a stable, production-ready system that my team can start using in day-to-day operations. Your first objective will be to review the existing codebase, identify any quick wins for performance or security, and determine whether we should keep the current stack or migrate parts of it to something stronger. I am open to suggestions as long as the final solution remains lightweight, maintainable, and low-friction for future feature adds. Core requirements • End-to-end deployment to a live environment (I’m flexible on the hosting choice if you can justify it). • Seamless integration with our inventory management sy...

I need a security specialist to help me lock down the personal data we hold. At the moment information can be viewed too broadly; my goal is to make sure that only properly-authorised staff ever see it, and that every access attempt is recorded and auditable. Here is what I’m after: • Map the data flows and identify every location where personal information is stored or processed. • Design and implement role-based access controls so the system automatically limits visibility to authorised personnel only. • Integrate strong authentication (MFA preferred) and session management that times out inactive users. • Set up detailed audit logging and alerting so I can review who accessed what, when, and from where. • Provide concise documentation and a hand-...

Our in-house team built the first cut of a transport ERP with Claude and ; it works for demos, but I now need it production-ready for real fleets and paying clients. Infrastructure – Deploy the application on Amazon Web Services. Please provision the full stack (compute, managed database, object storage, CI/CD) under my account, attach our domain, and issue a valid SSL certificate. A nightly snapshot and disaster-recovery plan must be in place before go-live. Core application hardening The logistics modules—inventory, fleet, fuel tracking, and invoicing—occasionally break under concurrent use. Your first task is to trace and remove those stability issues, then verify that multi-user roles and the audit-log engine behave consistently across all transactions. Securit...

I'm looking to secure my corporate website. The entire site needs security improvements to ensure it is SURBL compliant. Requirements: - Assess current security vulnerabilities - Implement necessary measures to achieve SURBL compliance - Provide a detailed report of issues found and resolved Ideal Skills and Experience: - Expertise in corporate website security - Familiarity with SURBL compliance requirements - Experience with vulnerability assessment and remediation

I am seeking a cybersecurity specialist to support my company’s security efforts by performing the following tasks: Analyze Splunk vulnerabilities that I will provide; Document these vulnerabilities thoroughly, including identifying any related case studies, previously documented examples (e.g., academic articles or CVEs), and all possible remediation strategies;

We are seeking a senior development agency or highly experienced full-stack architect to build a highly secure, complex B2B SaaS platform. To protect our intellectual property, specific business logic will only be shared under an NDA. At a high level, this is a heavy data-processing and workflow automation platform. It features a dual-sided architecture: Admin Control Plane: An internal portal for our team to manage global master datasets, provision new tenants, and oversee infrastructure. Secure Tenant Workspace: Isolated environments for our enterprise clients to interact with data, manage internal workflows, process documents, and connect their own third-party tools. Architectural & Tech Stack Requirements The platform must be built with a strict focus on loose coupling, high pe...

I have a newly built desktop application that must be deployed on a private server so only the admin team can download, update, and manage it—absolutely no public exposure. The app already runs on both macOS and Windows; what’s missing is a rock-solid, production-ready deployment pipeline and a hardened hosting environment. Here’s the outcome I expect: • A locked-down server (cloud or on-prem) configured with best-practice security: fire-walling, SSL/TLS, VPN or IP-whitelisting, and role-based access. • Automated build and distribution flow that produces a signed .dmg for macOS and a signed installer (.exe or .msi) for Windows, then places each build behind the private portal. • Simple web dashboard or file share where only authenticated admins can gra...

My encrypted Excel workbook needs a realistic security workout. The file is protected with AWS, not sure what exact security is there, and I want to be confident that an unpaid or otherwise unauthorised user could not slip past that single control. The scope focuses on breaking the protection that could ultimately give an outsider access to the file without the key. Please capture every step, tool, and timeframe you use. Deliverables • Replicable proof-of-concept showing how access was (or was not) gained • A concise report summarising methods attempted, level of effort, and recommendations for hardening the workbook against similar attacks If the bypassing period is too short, the project will not end till we improve the security ourself and retest it with you If you...

I’ve already built a working medical prototype inside Google AI Studio and now I need it packaged as a true standalone Windows desktop application. The main responsibilities will be: • Re-architecting the current Google AI Studio build so it installs and runs natively on Windows without any command-line dependencies. • Designing a data layer that lets each clinic choose either a local, offline database or a secure cloud-hosted option, with an easy switch between the two. • Implementing strong security around patient records and treatment plans: encryption in transit and at rest, role-based access, and a well-structured authentication flow. • Guiding me through code signing, installer creation, and any compliance considerations typical for medical software. ...

I am looking for an experienced developer or team to build a full-featured online betting website similar to GK222. Reference site: Project Requirements: 1. Complete betting platform (Website + Mobile responsive or APK) 2. Sports betting system (Football, Cricket, etc.) 3. Live casino / slot games integration (JILI or similar API preferred) 4. User account system (Register, Login, Deposit, Withdraw) 5. Admin panel (Full control of users, transactions, games) 6. Payment integration (bKash, Nagad, Crypto if possible) 7. Real-time odds and live betting system 8. Bonus system (signup bonus, cashback, promotions) 9. Secure system (anti-hack, encryption, protection) 10. Fast server setup and optimization Optional (Bonus): - APK mobile app - Fake/demo games for testing - Multi-language suppo...

Android App Development & API Integration (Video + OTP + Security) We are looking for an experienced mobile app developer/team to work on our app SpakSpak. Current Status: Android app already developed Backend partially ready Need improvements, integrations, and optimizations Scope of Work: API Integration Video upload, compression & streaming optimization Phone number verification (OTP based login) Basic fraud detection / bot protection (if required) Performance Optimization App speed improvement Reduce lag in video loading Security Enhancements Prevent fake accounts / bots Secure API handling Code Management Proper documentation Clean and scalable code Important Requirements: Developer must clearly specify: Which APIs/tools will be used (with official links) Free vs Paid servic...

I am currently working on a cybersecurity-focused project and am seeking an experienced professional or company to collaborate with. The ideal partner should have strong expertise in penetration testing (pentesting) and the ability to provide and/or develop cybersecurity software solutions. Scope of Work: Perform penetration testing on systems and applications Identify vulnerabilities and provide detailed security reports Develop or integrate cybersecurity tools and software Support the design and development of secure applications Recommend best practices for strengthening overall security posture Requirements: Proven experience in penetration testing and vulnerability assessment Strong background in cybersecurity tools and frameworks Experience in developing cybersecurity application...

I'm looking for an experienced developer to create a document repository application primarily for document storage and retrieval. The app should support PDFs, Word documents, and spreadsheets. Key Features: - Secure document storage - Easy retrieval with search functionality - Support for PDFs, Word documents, and spreadsheets - User authentication and authorization Ideal Skills and Experience: - Proven experience in developing document storage applications - Strong background in database management - Expertise in implementing security protocols - Familiarity with various document formats and handling Please include relevant experience in your application. Looking forward to your bids!

I’ve built a web app with Claude and the interface is complete. What’s left is the server-side polish: wiring up the remaining API endpoints and adding a secure user-authentication layer. All data is held in an in-memory database, so the hooks you create need to read from and write to that store seamlessly. You’ll get full access to the current Claude-generated backend stubs, the finished front-end, and a staging environment on my existing site. Your task is to complete the missing API development work, implement robust login/session management, and push the code to the production branch so I can launch. Deliverables • Fully functional API endpoints connected to the front-end • Secure sign-up, login, token refresh, and logout flows • Clean integration...

**Project Title:** Build FIU-Compliant Crypto Exchange Platform for India (Web + Admin Panel)(MOBILE APP) **Project Description:** I am looking for an experienced blockchain development team or individual to build a **secure, scalable, and FIU-compliant cryptocurrency exchange platform** for the Indian market. The platform should support spot trading initially, with scope to expand into futures and margin trading later. --- **Key Requirements:** **1. Core Features:** * User registration & login (Email, Mobile OTP, 2FA) * KYC verification system (Aadhaar/PAN integration preferred) * Wallet system (multi-currency: BTC, ETH, USDT, INR, etc.) * Deposit & withdrawal (Crypto + INR via payment gateway) * Trading engine (real-time order matching) * Spot trading (Market, Limit, Stop o...

I'm seeking an experienced mobile app developer to create a secure, encrypted vault application for both iOS and Android platforms. The app needs to be built with advanced encryption standards (AES-256) to ensure the highest level of security for user documents. Key features include: - Encrypted vault for document storage - Will generation module - Nominee management: - Add/Edit/Remove nominees - Set nominee permissions - Notification to nominees upon changes - Death-triggered access release system Ideal candidates should have: - Proven experience in developing secure mobile applications - Expertise in implementing advanced encryption protocols - Familiarity with iOS and Android development - Strong understanding of user permission systems and notification mechanisms Please ...

I'm seeking an experienced developer to create an online casino platform. The unique twist of this casino is that the prizes are virtual accounts and game items. Key Requirements: - Game Types: Incorporate case-opening mechanisms similar to CSGO gambling sites. - Prize Offerings: Include virtual accounts and game items as rewards. - Game Items: Accessories will be the primary type of game items that can be won. Ideal Skills and Experience: - Strong background in game development, particularly with gambling mechanics. - Experience in creating secure and engaging online casino platforms. - Familiarity with virtual items and game economies. - Proficiency in backend and frontend development. Please provide examples of previous similar work.

I want a knowledgeable security professional to look over my personal Gmail account and confirm that everything is locked down properly. Even though I have not noticed any strange emails, log-ins, or settings changes, I would like an independent review of the account’s recent activity, connected apps, and login history to rule out silent or hard-to-spot intrusions. Your job is to walk me through the full audit, examine available Google security logs, highlight any red flags, and then help me apply best-practice countermeasures such as two-step verification, recovery-method hardening, and the removal of risky third-party access. Deliverables • A concise written report (or screen-share summary) outlining findings, suspicious events (if any), and clear next steps. • ...

I need a C# solution to apply RSA SHA1 digital signatures on an XML document with over 50 nodes. Each node should be signed individually, without URI references, and must be verifiable using C#. Requirements: - Use of 2048-bit RSA key PKCS#1 - Individual signatures for each XML node named <signedData> - No URI references for signatures - ds: NameSpace for Signature and child nodes of Signature, i.e <ds:Signature> - Enveloped method to include the Signature and Digest within the same Node, this should be appended as Child Node in <signedData> - = ; - = ; - XmlDsigC14NWithCommentsTransform env = new XmlDsigC14NWithCommentsTransform(); - XmlDsigEnvelopedSignatureTransform env = new XmlDsigEnvelopedSignatureTransform(); - Verification Module in C# included in the same sol...

I am running a strictly white-hat engagement across several of my own iOS devices that sit on different networks and domains. The goal is to push each target as far as an ethical penetration test will allow and document every weakness uncovered. Scope • App-layer probing, OS-level hardening checks, and live network traffic inspection are all in scope. • Devices run iOS 15 (and below) as well as iOS 16, none are jailbroken and most are managed through MDM profiles. • You will have remote access or shipped test builds where needed; I can provision enterprise certificates if required. What I need from you Experience breaking down Apple’s security stack, from app sandboxing through kernel mitigations and transport-layer defenses. A comfort level with tools such a...

I need an antitheft immobilizer installed on my car. The system should integrate with my existing security systems and include an alarm system. Ideal Skills and Experience: - Experience with vehicle security systems - Knowledge of antitheft immobilizers and their integration - Proficiency in installing alarm systems in cars - Ability to work with existing security setups

I’m part of Get Solution in the Kingdom of Saudi Arabia, and our team has just completed an AI-powered auditing platform that now needs a rigorous, soup-to-nuts test cycle before we take it to market. I want you to exercise the product exactly as our future users and auditors will, then hand back clear evidence of anything that slows them down, breaks, or leaves a security hole behind. What has to be covered – Functionality: you will craft and run unit, integration, and full-scale performance tests that stress every microservice, API, and data pipeline. – User Experience: walkthroughs for end users, our own internal staff, and external third-party auditors, noting friction points, confusing flows, and accessibility gaps. – Security: a focused penetration and ...

Project Title: Full Stack Developer Needed – Payment Collection Portal (.NET Microservices + + Subscription System) Project Description: We are looking for an experienced Full Stack Developer or Team to develop a secure and scalable Payment Collection Portal using .NET Microservices architecture for the backend and for the frontend. The platform will allow students to make payments/subscriptions online and administrators to manage collections, users, and reports through a dedicated dashboard. The system must follow modern software architecture, strong security practices, and suitable backend design patterns. Scope of Work: - Develop backend using .NET Microservices architecture - Build a responsive frontend using - Implement student and admin dashboards - Integrate subscriptio...

I need an experienced, credentialed IT auditor to examine my fully on-premises environment and produce a signed audit report that will satisfy the documentation standards. Scope of the review Review of basic IT infrastructure and systems Evaluation of security practices (access control, data handling, etc.) Identification of risks and gaps Suggestions for improvement Deliverables 1. A formal IT Audit Report, signed and dated, bearing your auditor credentials. 2. Executive summary highlighting overall risk posture and priority issues. 3. Detailed findings with evidence, severity ratings and practical remediation steps. Acceptance criteria • Report must be delivered in PDF and editable Word formats. • Any recommendation must include the specific control or guideline it a...

I run a small startup with about ten Windows desktops and laptops and I’m ready to standardise them under one clean, fully licensed company image. I need an IT specialist to: • Build a reproducible “golden” Windows image that includes only licensed software and our branding. • Deploy that image remotely to every workstation with minimal disruption to my team. • Create a single admin account that lets me monitor installed software, track updates and receive alerts when anything drifts from policy. • Configure secure remote-support access through TeamViewer or AnyDesk so I can reach any device on demand. • Document the exact setup steps, licence keys in use, and a simple process for bringing new machines online. I’m open to whichever...

Necesito recuperar el acceso a mi cuenta de Facebook: la plataforma me exige la autenticación en dos pasos y no puedo completarla. Ya intenté el flujo de “Recuperación de cuenta de Facebook” y contacté al soporte oficial sin éxito. El correo y el número de teléfono vinculados son correctos, pero el código nunca llega y Google Authenticator, Duo ni otros generadores de códigos resuelven el problema. Busco a alguien que: • Analice mi caso y verifique qué opción de recuperación sigue activa (códigos de respaldo, dispositivo confiable, formulario de identidad, uso de documento oficial, etc.). • Me guíe paso a paso o, si es necesario, se conecte por escritorio remoto para c...

Ich suche Unterstützung, um meine WordPress-Seiten nachhaltig aktuell und stabil zu halten. Einmal im Monat fallen diese Arbeiten an: • Inhalte aktualisieren: Ich liefere fertige News-Artikel, du pflegst sie inklusive Bilder, Kategorien und SEO-Metadaten ein. • Design anpassen: Kleinere Layout-Optimierungen oder Farb-/Schriftanpassungen, damit die Seite frisch wirkt und responsive bleibt. • Plugin-Management: Updates einspielen, Kompatibilität prüfen und bei Bedarf Alternativen vorschlagen, falls ein Plugin Probleme verursacht. Wichtig ist mir eine saubere Dokumentation jeder Änderung direkt im Backend (Change-Log) sowie eine kurze Statusmeldung nach jedem Pflege-Zyklus. Erfahrung mit gängigen Page-Buildern, Sicherheits-Backups und Performance-Opti...

DESCRIPCIÓN GENERAL Buscamos desarrollador full-stack (o equipo pequeño) para construir una plataforma web conectada a un motor de datos en tiempo real ya contratado (tercero vía API). El alcance es todo el sitio: frontend, backend, usuarios, billetera y operaciones. No se desarrolla el motor. Solo la integración. ⸻ ALCANCE PRINCIPAL • Sitio web completo (mobile-first) • Registro y login con teléfono + OTP SMS • Billetera digital (depósitos, saldo en tiempo real, retiros) • Integración de pagos (Paystack) • Consumo de datos en tiempo real (API externa) • Panel de interacción tipo carrito/orden • Historial de actividad (ganancias/pérdidas) • Sistema de promociones y referidos ...

Busco un desarrollador backend senior para un protocolo DeFi en Solana. El enfoque principal es el intercambio de tokens, con una integración robusta con exchanges. Requisitos clave: - Integración con exchanges - Seguridad de transacciones como prioridad Habilidades ideales: - Experiencia con Web3, Node.js y contratos inteligentes - Dominio de la blockchain de Solana - Fuerte enfoque en la seguridad Por favor, proporcione ejemplos de trabajos anteriores y experiencia relevante. :Experiencia exhaustiva en gestión de memoria, seguridad de hilos y concurrencia Dominio total del estándar de la industria para desarrollo en Solana. :Manejo experto de PDAs, CPIs y optimización de Compute Units para escalabilidad Traducir bonding curves y pools ...

Plataforma Web + Apps Nativas (iOS/Android) – Simulador Licencia de Conducir Chile DESCRIPCIÓN DEL PROYECTO Buscamos un desarrollador o equipo experto para construir un ecosistema digital de alto rendimiento enfocado en la preparación de exámenes de conducir en Chile. El proyecto consiste en un sitio web responsivo, aplicaciones móviles publicadas en tiendas y un panel administrativo robusto. IMPORTANTE: Ya contamos con el diseño de la interfaz de usuario (UI) para el área de preguntas y un banco de datos de más de 7,000 preguntas segmentadas por tipo de licencia. ALCANCE TÉCNICO REQUERIDO Desarrollo Móvil: Aplicaciones nativas o híbridas de alto rendimiento (React Native / Flutter) publicadas en Google Play S...