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We're hiring an experienced backend engineer to build, deploy, and maintain REST APIs for a security-focused, self-hosted incident response / case-management platform running on Linux. Responsibilities Design, build, and maintain REST API endpoints (Python, FastAPI) Deploy and operate the platform on Linux (Ubuntu) via Docker / Docker Compose Configure and harden supporting services: Nginx reverse proxy, MariaDB, Redis, Celery workers, Elasticsearch Manage authentication, secrets, and secure configuration (env vars, tokens, TLS certs, encrypted credentials) Build custom integrations/parsers/enrichers against the platform's REST API Monitor, troubleshoot, and tune services (logs, container health, resource sizing) Apply security best practices throughout (least privilege, input validation, secret handling, patching) Requirements Strong Python backend experience, ideally with FastAPI Solid Linux system administration skills, comfortable at the CLI Hands-on production experience with Docker & Docker Compose Experience with MariaDB/MySQL, Redis, Celery (or similar), Elasticsearch Understanding of REST API security (auth, encryption, secrets handling) Cybersecurity / incident response / DFIR background is a strong plus Good written English for async communication Nice to have Experience with SOAR/DFIR/SIEM platforms Nginx configuration & TLS CI/CD pipelines How to apply Please send your resume/CV with all contact details removed (no email, phone, LinkedIn, or other personal identifiers) — experience and skills will be reviewed first, blind. Individual freelancers only; agency/staffing submissions will not be considered. One note: I interpreted "avoid companies to apply" as "no agencies, only individual freelancers" — that's the standard reason people request contact-free resumes. If you actually meant something else (e.g. blocklisting specific companies' employees), let me know and I'll adjust that line.
Project ID: 40639899
70 proposals
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Active 21 hours ago
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70 freelancers are bidding on average ₹52,568 INR for this job

Hello, I have 10 years of experience in developing scalable backend systems. I am excited to apply for the Linux Backend Engineer role. I specialize in building REST APIs using Python and FastAPI. I am proficient in deploying and managing services on Linux using Docker. I have a strong background in securing and configuring platforms with Nginx, MariaDB, and Redis. I am committed to applying security best practices throughout the project. Regards, VishnuLal NB*
₹75,000 INR in 1 day
7.7
7.7

Hi, You need to build and secure a self-hosted incident response platform using FastAPI, Docker, and Nginx on Ubuntu. I can set up the full backend API stack and harden the Linux environment for you. What I'll do: ✅ Develop and deploy FastAPI REST endpoints via Docker Compose. ✅ Configure Nginx reverse proxy, TLS, and harden MariaDB/Redis services. ✅ Perform a full backup and staged rollout to guarantee production stability. Skills: ✅ Python & FastAPI backend development ✅ Docker, Linux (Ubuntu), & System Admin ✅ Nginx, MariaDB, Redis, and Celery ✅ Security hardening & secrets management ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ 300+ projects delivered, 280+ five-star reviews I provide fast responses and unlimited revisions until the system is stable. Do you have the Ubuntu server infrastructure ready, or do you need assistance provisioning it? I can complete this in 3 days for 41,994 INR and can start right now.
₹41,994 INR in 3 days
7.0
7.0

With a solid background in Amazon Web Services and Python, I'm well-equipped for the challenges of your Linux Backend Engineering project. My deep understanding of Linux systems and mastery of relevant technologies such as Docker, FastAPI, MariaDB, Redis, Celery, and Elasticsearch align perfectly with your requirements. I am confident that my technical skills combined with my 18 years of experience makes me an ideal fit for this role. Lastly, but importantly, we pride ourselves on our dedicated work ethic and commitment to customer satisfaction. Always updated on the best cybersecurity practices, we understand the paramount importance security plays in your project. As an individual freelancer representing a trusted agency, you'll be engaging not just me but a team of talented professionals ready to proactively support your project from inception to completion. Your platform's success is my sole focus and I look forward to the opportunity to prove this commitment.
₹56,250 INR in 7 days
6.5
6.5

Hi, I specialize in turning business challenges into clean, reliable software — from automation and APIs to web applications, AI, and backend systems. What sets me apart: I focus on outcomes, not just deliverables. Every solution I build is designed to be maintainable, scalable, and aligned with your actual goals. Let's build something great together. Thanks, Deva
₹56,250 INR in 7 days
6.1
6.1

I'm Siddhant, a seasoned backend engineer with a strong affinity for all things Linux and an extensive Python background. With proficiencies in FastAPI, Docker, MariaDB, Redis, Celery, and a variety of other technologies mentioned in your project description, I'm confident in my abilities to design, deploy and maintain the REST APIs for your security-focused platform. My familiarity with Nginx revers About the authentication process, I believe a collaborative approach will be the most efficient. Together, we can ensure an authentication method that prioritizes security without compromising on usability. As an additional unique value I bring to the table is my commitment towards quality assurance. I do in-depth code reviews and comprehensive testing at multiple stages to deliver zero-defect products. Given the critical nature of your security platform, this meticulous attention to detail will prove invaluable. In conclusion, my technical expertise and professional approach make me a natural-fit for this project. I am dedicated to consistently delivering high-quality work that matches or exceeds client expectations. The security of your platform will always remain paramount to me along each phase of its development and deployment. Looking forward to discussing more about your project and get started!
₹37,706 INR in 28 days
5.7
5.7

Hello I reviewed your Linux Backend Engineer Python FastAPI REST APIs for Security Platform project and it stood out because a security platform needs a reliable backend with strong authentication careful data handling and predictable API behaviour Problem Security focused applications can become difficult to maintain when API authentication background processes database operations and Linux services are not designed for reliability and secure operation Solution I can develop and maintain your Python FastAPI backend with REST APIs authentication authorization database integration background workers validation logging and Linux deployment I can also improve API performance add automated testing and integrate the backend with existing security services while keeping the code modular and maintainable Result You will receive a secure reliable and scalable FastAPI backend with well structured APIs predictable service behaviour and a strong foundation for expanding the security platform A few questions Which database and authentication system are currently being used Is the FastAPI application already deployed on Linux What security services or APIs need to be integrated Do you already have API specifications and test cases I can start immediately and provide regular progress updates throughout the project Thanks
₹42,250 INR in 10 days
5.7
5.7

Your platform will fail PCI or SOC2 audit if secrets are stored in plain environment variables instead of a proper vault. Most self-hosted SOAR deployments I've reviewed leak credentials through Docker logs or unencrypted Redis sessions. Quick questions - are you planning HashiCorp Vault or AWS Secrets Manager for credential rotation? And what's your target RTO if the primary MariaDB instance goes down? Here is the architectural approach: - FASTAPI + CELERY: Build async task queues that isolate long-running enrichment jobs from API response threads, preventing timeout failures during high-volume incident ingestion. - DOCKER HARDENING: Configure read-only root filesystems, drop unnecessary capabilities, and implement health checks that auto-restart containers before they OOM under load. - NGINX + TLS: Terminate SSL at the reverse proxy layer with automated cert renewal, rate limiting per IP, and request validation that blocks malformed payloads before they hit FastAPI. I've built similar incident-response platforms for two MSSPs that now process 10K+ alerts daily without manual intervention. Let's schedule a 15-minute call to walk through your threat model and deployment topology.
₹50,630 INR in 21 days
5.7
5.7

I’m a strong fit for this Linux/Python backend and security platform role, with hands-on experience building REST APIs, backend services, integrations, and production deployments. I can work across Python/FastAPI, Linux/Ubuntu, Docker/Docker Compose, Nginx, MariaDB/MySQL, Redis, Celery, Elasticsearch, and REST APIs. I can also handle secure configuration, authentication, secrets management, TLS, input validation, logging, monitoring, troubleshooting, and service optimization. For your incident-response/case-management platform, I can develop custom integrations, parsers, enrichers, and API endpoints, while keeping the architecture modular and maintainable. I’m comfortable working directly from the Linux CLI and diagnosing issues across containers and supporting services. Security will be treated as a core requirement—not an afterthought—with attention to least privilege, secure credentials, encrypted communication, validation, patching, and hardened deployment practices. I can provide a contact-free CV as requested, containing only relevant experience and technical skills. I’m also comfortable with async communication and working independently. I’d be glad to discuss your current architecture, API requirements, and deployment environment. Jeneifer
₹56,250 INR in 7 days
5.8
5.8

Hi, I have 10+ years of experience in Python backend development, Linux administration, Docker, REST APIs, and production deployments. I can build and maintain FastAPI services, configure Nginx, MariaDB, Redis, Celery, Elasticsearch, TLS, authentication, secrets, and secure integrations. I’ll focus on least-privilege access, input validation, monitoring, container health, and reliable deployment. FastAPI officially supports containerized deployment and secure OAuth2-based authentication.
₹50,000 INR in 7 days
5.4
5.4

Hi there, I’m Karthik, an independent Linux Backend Architect with 15+ years of experience building secure Python/FastAPI microservices, high-throughput REST APIs, and self-hosted security platforms. Tech Stack & Core Expertise Backend: Python, FastAPI, Pydantic, SQLAlchemy, Celery + Redis for asynchronous task processing. Database & Search: MariaDB/MySQL optimization, Elasticsearch for fast case/log indexing and search queries. Linux & DevOps: Ubuntu administration, Docker & Docker Compose orchestration, Nginx reverse proxy tuning, and TLS cert automation. Platform Security: REST API hardening, JWT/OAuth2 authentication, secret rotation, input validation, and least-privilege RBAC. What I Will Deliver Secure, performant FastAPI REST endpoints and custom log/threat-data enrichers. Fully containerized Docker Compose production deployment with hardened Nginx, MariaDB, Redis, and Elasticsearch. System monitoring, automated log rotation, resource tuning, and complete async API documentation (OpenAPI/Swagger). Fixed Bid: ₹74,000 INR Timeline: 10 - 14 Days As an individual freelancer, I am ready to submit my anonymized CV immediately. Let’s connect! Best regards, Karthik
₹74,250 INR in 7 days
5.0
5.0

I’m an experienced backend engineer with strong Python, FastAPI, Linux, Docker, Nginx, MariaDB, Redis, and REST API development experience. I’ve built and maintained secure backend systems, implemented authentication, API integrations, containerized deployments, and performance optimizations while following security best practices. I’m comfortable managing Ubuntu production environments, troubleshooting distributed services, and collaborating asynchronously. I can provide a contact-free resume and am available for long-term individual freelance work.
₹37,500 INR in 7 days
4.8
4.8

Hello, I’m an experienced backend engineer with strong hands-on expertise in Python, FastAPI, REST APIs, Linux, Docker, and production deployments. I can build and maintain secure APIs while managing the complete self-hosted infrastructure. I have practical experience with Docker/Docker Compose, Nginx, MySQL/MariaDB, Redis, Celery, Elasticsearch, environment-based secrets, authentication, TLS, logging, monitoring, and server troubleshooting. I follow security-first practices including least privilege, input validation, secure credential handling, patching, and hardened configurations. I can also develop custom integrations, parsers, and enrichers through REST APIs and optimize containerized services for reliability and performance. I work independently, communicate clearly, and can take ownership from API development through deployment and ongoing maintenance. I’m available to start immediately and would be happy to discuss your platform architecture and requirements.
₹40,000 INR in 7 days
4.1
4.1

I can design and maintain REST API endpoints using Python and FastAPI for your security platform. My first step will be to set up a local Docker environment to ensure smooth deployment on Ubuntu. Based in Toronto, Canada, I work efficiently and am always available for quick communication and updates.
₹37,500 INR in 7 days
3.8
3.8

Hi I can build a secure, responsive Django-based restaurant management system with customer authentication, menu management, online ordering, and an intuitive admin dashboard. I have experience with Python, Django, Django REST Framework, PostgreSQL/MySQL, REST APIs, and e-commerce applications. Thanks Anshuman
₹50,000 INR in 20 days
4.1
4.1

Hi, I’m an experienced Python backend engineer comfortable building and operating security-focused APIs and self-hosted platforms in production Linux environments. I can take ownership of the full backend and infrastructure workflow, including: • FastAPI REST API development with clean, validated schemas • Docker/Docker Compose deployment and service orchestration on Ubuntu • MariaDB/MySQL, Redis, Celery, and Elasticsearch configuration and optimization • Nginx reverse proxy, TLS, secure headers, and production networking • Authentication, token management, environment-based secrets, and encrypted credentials • Custom REST integrations, parsers, enrichers, and automation workflows • Container health checks, logging, resource tuning, troubleshooting, and monitoring • Secure coding practices including least privilege, input validation, dependency patching, and defensive error handling • CI/CD and reproducible deployment where required For a security-focused incident-response platform, I would prioritize minimizing attack surface, keeping secrets out of source control, isolating services, and maintaining clear auditability across API and infrastructure operations. I’m comfortable working independently with Git and async communication and can provide a contact-free CV as requested.
₹56,250 INR in 7 days
3.7
3.7

Hi, I can build, deploy, and maintain your Linux-based security platform backend using Python/FastAPI, Docker Compose, MariaDB, Redis, Celery, Elasticsearch, and Nginx with secure production configuration. The best solution is to first review your existing platform architecture, API requirements, authentication flow, deployment environment, and supporting services. Then I’ll develop clean FastAPI REST endpoints, configure Docker services, harden Nginx/TLS, manage env secrets safely, set up workers, logs, health checks, and tune the stack for stable Linux operation. I’m comfortable with Python, FastAPI, REST API development, Ubuntu/Linux administration, Docker/Docker Compose, Nginx reverse proxy, TLS, MariaDB/MySQL, Redis, Celery workers, Elasticsearch, secure configuration, API authentication, parsers/integrations, logging, monitoring, and security-focused backend deployment. Deliverables will include: * FastAPI REST API development * Linux/Docker deployment * Docker Compose service setup * Nginx reverse proxy configuration * MariaDB, Redis, Celery setup * Elasticsearch integration * Authentication and secrets handling * Custom API integrations/parsers * Logs and health monitoring * Security hardening checks * Deployment documentation I’ll focus on clean backend code, secure configuration, reliable Linux operations, and clear async communication as an individual freelancer. Best regards Ankit
₹37,500 INR in 7 days
3.4
3.4

Hi, I’m a Full-Stack/Backend Developer with 14 years of experience, with strong expertise in Python, FastAPI, REST APIs, Docker, Linux, Redis, MySQL/MariaDB and Celery. I can build and maintain secure APIs, configure Nginx/TLS, harden Ubuntu servers, and manage Docker Compose services including Elasticsearch. I have strong experience with authentication, RBAC, secure secrets handling, validation, logging, performance tuning and production deployments. I’m comfortable working directly from the Linux CLI, troubleshooting containers, monitoring resources and resolving production issues independently. I can also develop custom API integrations, parsers and enrichers while following security-first development practices. I’m an individual freelancer, available for long-term backend/API and infrastructure work, and happy to provide a contact-free CV as requested.
₹40,000 INR in 10 days
3.5
3.5

Hi, I can build and maintain the FastAPI REST endpoints for your self-hosted incident response platform on Ubuntu, running the stack through Docker Compose with Nginx, MariaDB, Redis, Celery, and Elasticsearch. I am an individual freelancer, and my CV will be sent with all contact details removed. I will also harden auth and secret handling with env-based tokens, TLS, and least-privilege container users, plus health checks on each service. Questions: 1) Which incident response platform is this, TheHive/Cortex or something custom? 2) Are the parsers and enrichers for specific tools you can name? Looking forward to discussing further. Regards, Shayan.
₹41,250 INR in 12 days
2.8
2.8

As an Embedded Systems Developer, IoT Engineer and with a strong background in Python backend, I believe I am the perfect fit for your project. I have significant experience in building and maintaining REST API endpoints on Linux (Ubuntu) using Python and FastAPI. Additionally, I have worked extensively with Docker and Docker Compose for deployment, configuring supporting services like Nginx reverse proxy, MariaDB, Redis, Celery workers, Elas9ticsearch.
₹45,250 INR in 7 days
2.7
2.7

Hello, This project is a strong match for my Python backend and infrastructure experience. I understand you're looking for more than an API developer, the role requires someone comfortable owning the application in a Linux/Docker production environment as well. I can work with Python/FastAPI, Docker/Docker Compose, Linux/Ubuntu, MariaDB/MySQL, Redis, Celery, Elasticsearch and Nginx, with a focus on secure configuration, API security, service health and maintainable deployments. My approach would be to first understand the existing platform architecture and deployment workflow, then establish a reliable baseline for the API, supporting services and Docker environment. From there I'd work through endpoint development, integrations/parsers/enrichers, authentication and secrets, monitoring, performance tuning and security hardening. For a security-focused platform, I'd pay particular attention to least-privilege access, input validation, TLS, secret management, dependency patching and avoiding unnecessary exposure of internal services. I'm also comfortable with ongoing maintenance and troubleshooting, so I'd be interested in the longer-term aspect of the role. I'm happy to discuss the existing architecture, responsibilities and budget before we finalize the engagement. Best regards, Deepak
₹45,000 INR in 7 days
2.5
2.5

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