Senior DevOps & Performance Optimization Consultant
I partner with CTOs, founders, and engineering leaders to diagnose complex technical bottlenecks, modernize infrastructure, and implement automation that accelerates delivery — without the overhead of a full-time hire.
What I Do
From infrastructure fires to long-term modernization, I help engineering teams build faster, more reliable, and more cost-efficient systems.
I profile APIs, databases, and distributed systems to isolate bottlenecks — reducing p95 response latency, optimizing Elasticsearch clusters, and improving throughput under peak load.
I architect and automate cloud environments on GCP and AWS using Kubernetes, Terraform, and Docker — cutting infrastructure costs and delivering reliable, scalable systems.
I design end-to-end CI/CD pipelines and automated testing frameworks that shrink deployment cycles from hours to minutes and eliminate manual QA bottlenecks.
I implement monitoring stacks with Datadog, Prometheus, and Kibana to surface issues proactively — reducing incident response time and mean time to resolution.
Experience
15+ years delivering high-impact results across startups, scale-ups, and enterprise engineering teams.
Freelance consulting and contract DevOps/automation engagements across multiple clients.
Recommendations
Feedback from clients, colleagues, and managers across 15+ years of engagements.
Christian is a client's ideal consultant. He is astute, personable, and a pleasure to work with. He readily understands a client's objectives and quickly zeros in on the quickest, cleanest, most cost-effective path to achieve them. Christian is an excellent engineer who seems to truly enjoy tackling thorny problems and transforming them with elegant solutions. We initially engaged with Christian while he was at Axon Consulting, a firm we hired to modernize our legacy code and optimize our SaaS application's performance. He solved persistent issues in short order, brought to life new features that required complex multi-language solutions under the hood, and worked with our app across multiple cloud services to significantly enhance performance. Although our engagement with Axon is complete, we consider ourselves very fortunate indeed to continue to work with Christian as an independent consultant.
Christian is one of the sharpest engineers I've ever worked with. He's got that unique blend of approachability, technical expertise, and practical real-world experience that leads to excellent outcomes. I've seen him work projects solo, sorting out nigh-impossibly snarled logic into clean, efficient, and well-designed architecture. I've also seen him lead teams of engineers, effortlessly shifting between technical guidance and personable management, all while maintaining sight of the overall project objective. It's been an absolute pleasure to have worked with him at three separate firms, and I'd welcome the chance to do so again. I cannot recommend engaging with Christian highly enough. He's the real deal.
I highly recommend Christian Justo for any role requiring effective communication and a proactive attitude. He consistently demonstrated the ability to get things done efficiently and never hesitated to ask questions when needed. Christian was always receptive to feedback and actively worked to improve based on it. With an eagerness to learn new things and a positive attitude, he excelled in client communications, ensuring clear and productive interactions. Christian would be an invaluable asset to any team.
Solutions minded with a keen eye for building quality focused automation solutions, Christian was instrumental in building out an automation which increased QA and development team speed and productivity enabling us to reduce product bugs by over 85%. He's proficient with Python, Linux administration, Cisco switch and router configuration, Network Security concepts, and virtualization solutions including vSphere and Docker. I'd hire him again in a minute.
Tech Stack
The technologies I work with day-to-day.
Contact
The fastest way to see if we're a fit. Grab 30 minutes and let's talk through what you're working on.
I'm currently available for consulting and contract work. I work best with engineering teams that have real performance or infrastructure challenges and need a seasoned consultant who can move fast and deliver results.
Infrastructure audits, performance optimization, CI/CD builds, and DevOps consulting — scoped engagements from weeks to months. Remote-first, Austin TX based.
Considering staff-level or principal DevOps/infrastructure engineering roles with the right team. Reach out to start a conversation.