DevOps Consultant

Job Title: Senior DevOps Consultant – Active/Active Infrastructure & High Availability Location: Remote Job Type: Contract Start Date: ASAP Job Overview: We are seeking a highly skilled Senior DevOps Consultant to design and implement an active-active VPC architecture across two availability zones, enabling shared load balancing and failover-ready systems. The ideal candidate will have deep hands-on experience with AWS infrastructure, cluster replication, and Java-based backend services engineered for high availability. Experience with vector databases and modern AI-enhancement methods such as RAG (Retrieval-Augmented Generation) is a strong plus. Key Responsibilities: • Design and deploy two VPCs in active-active mode across two AWS availability zones. • Implement shared load balancing to ensure continuous availability. • Set up and maintain data replication strategies to manage seamless failover between zones. • Build and optimize cluster replication for: • MySQL (managed and self-hosted) • Redis (managed and self-hosted) • Vector databases • Work closely with development teams to refactor Java applications for high availability in active/active environments. • Support blue/green deployment strategies to minimize downtime and risk. • Collaborate on architectural decisions, CI/CD practices, and infrastructure-as-code implementations. • Ensure operational excellence, scalability, and performance of the infrastructure stack. Must-Have Qualifications: • Strong expertise in AWS infrastructure, including VPC setup, load balancers, availability zones, and failover configurations. • Proven experience with cluster replication for MySQL, Redis, and Vector databases. • Hands-on experience managing both managed services (RDS, ElastiCache) and self-hosted instances. • Strong programming skills in Java, specifically around implementing high availability and active/active setups. • Experience implementing blue/green deployments and rollout strategies for Java-based applications. • Familiarity with observability tools, disaster recovery strategies, and automation. Nice to Have (Huge Plus): • Experience with Weaviate or other Vector Databases (e.g., Pinecone, FAISS, Qdrant). • Understanding of Retrieval-Augmented Generation (RAG) for enhancing LLM performance. • Exposure to AI/ML infrastructure, MLOps, or large-scale knowledge retrieval systems. Preferred Certifications (Optional but Valued): • AWS Certified DevOps Engineer – Professional