Role Overview
We are looking for an experienced Senior Developer with a strong background in system architecture, cybersecurity, and high-value transaction security. This role will be responsible for designing and implementing a secure, scalable, and high-performance auction platform that handles sensitive financial transactions and protects against cyber threats. The ideal candidate will have experience in real-time bidding systems, secure authentication mechanisms, and financial-grade security.

Key Responsibilities

1. System Architecture & Scalability

– Design and implement a robust system architecture that supports high-traffic, real-time bidding without performance bottlenecks. – Ensure the platform follows microservices architecture or an optimized monolithic design with modular capabilities. – Develop a fault-tolerant infrastructure that ensures 99.9% uptime and seamless auction experiences.

– Optimize data handling for vessel listings, bid histories, and financial transactions with efficient database management (e.g., MSSQL, PostgreSQL, MongoDB, or other suitable DBs). – Implement real-time event handling using WebSocket, Kafka, or similar messaging systems for fast bid updates.

2. Security & Compliance

– Design and implement a multi-layered security framework with: – End-to-end encryption (AES-256, TLS 1.3) for sensitive data. – Multi-Factor Authentication (MFA) for user access control.

– Role-Based Access Control (RBAC) to restrict unauthorized actions. – Develop a comprehensive audit log that tracks all critical actions, including bid timestamps,
login attempts, and payment transactions.

– Integrate secure payment processing and escrow mechanisms, ensuring compliance with financial regulations.

– Design real-time fraud detection algorithms to identify and prevent fake bids, insider collusion, or automated bot attacks.

– Implement DDoS protection, WAF (Web Application Firewall), and API security best practices to prevent cyber threats. – Ensure compliance with GDPR, maritime industry standards, and financial transaction regulations.

3. Real-Time Bidding System

– Architect a low-latency, real-time auction system that supports bid placement within milliseconds.
– Implement bid validity checks and conflict resolution algorithms to handle simultaneous bidding scenarios.

– Ensure data consistency and synchronization across all users during live auctions.

4. Performance Optimization – Optimize database queries and indexing to handle high read/write operations efficiently.

– Ensure the system can scale to handle concurrent auctions with thousands of bidders. – Use load balancing, caching strategies (e.g., Redis, Memcached), and containerization (Docker/Kubernetes) for optimal performance.

– Implement asynchronous processing for non-critical tasks to improve responsiveness.

5. Incident Response & Monitoring

– Implement real-time monitoring and alerting (e.g., ELK Stack, Prometheus, Grafana) to track system health and detect anomalies. – Develop an incident response plan for handling security breaches, system failures, or fraudulent activities.

– Provide automated backups and disaster recovery solutions to prevent data loss.

Required Skills & Experience
✅ 10+ years of software development experience, with a focus on system architecture & security.
✅ Expertise in backend technologies (C#, Node.js, Python, Java, or Go).
✅ Strong understanding of cloud infrastructure (AWS, Azure, or GCP).
✅ Database experience (MSSQL, PostgreSQL, MySQL, MongoDB, Redis).
✅ Proficiency in real-time systems (WebSocket, Kafka, RabbitMQ).
✅ Deep understanding of cybersecurity best practices (OWASP Top 10, zero-trust security).
✅ Experience in high-value financial transactions and **secure payment processing.
✅ Strong knowledge of GDPR, ISO 27001, and maritime industry compliance.
✅ Familiarity with blockchain or smart contracts for escrow management (a plus).
✅ Experience with DevOps, CI/CD pipelines, and containerization (Docker, Kubernetes).
✅ Excellent problem-solving skills.

Interested and Qualified candidates should send CV to recruitment@sdsd.com