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Hi, I'm Nikola Krzalic. I'm a DevOps / Site Reliability Engineer with 12+ years of experience helping teams build new infrastructures, scale, automate, and migrate legacy environments. I've worked across fintech, pharma, and AI, in both enterprise and startup settings, shaping IT strategies as organizations grow. In my day-to-day, I design and implement infrastructure from scratch using IaC, set up CI/CD pipelines, and put out fires. I’ve debugged outages and availability issues across PostgreSQL, Nomad, and Kubernetes clusters, and performed various performance optimizations to make sure my client's apps run smoothly.…Hi, I'm Nikola Krzalic. I'm a DevOps / Site Reliability Engineer with 12+ years of experience helping teams build new infrastructures, scale, automate, and migrate legacy environments. I've worked across fintech, pharma, and AI, in both enterprise and startup settings, shaping IT strategies as organizations grow. In my day-to-day, I design and implement infrastructure from scratch using IaC, set up CI/CD pipelines, and put out fires. I’ve debugged outages and availability issues across PostgreSQL, Nomad, and Kubernetes clusters, and performed various performance optimizations to make sure my client's apps run smoothly.

Nikola Krzalic

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Hi, I'm Nikola Krzalic. I'm a DevOps / Site Reliability Engineer with 12+ years of experience helping teams build new infrastructures, scale, automate, and migrate legacy environments. I've worked across fintech, pharma, and AI, in both enterprise and startup settings, shaping IT strategies as organizations grow. In my day-to-day, I design and implement infrastructure from scratch using IaC, set up CI/CD pipelines, and put out fires. I’ve debugged outages and availability issues across PostgreSQL, Nomad, and Kubernetes clusters, and performed various performance optimizations to make sure my client's apps run smoothly.…Hi, I'm Nikola Krzalic. I'm a DevOps / Site Reliability Engineer with 12+ years of experience helping teams build new infrastructures, scale, automate, and migrate legacy environments. I've worked across fintech, pharma, and AI, in both enterprise and startup settings, shaping IT strategies as organizations grow. In my day-to-day, I design and implement infrastructure from scratch using IaC, set up CI/CD pipelines, and put out fires. I’ve debugged outages and availability issues across PostgreSQL, Nomad, and Kubernetes clusters, and performed various performance optimizations to make sure my client's apps run smoothly.

Available to hire

Hi, I’m Nikola Krzalic. I’m a DevOps / Site Reliability Engineer with 12+ years of experience helping teams build new infrastructures, scale, automate, and migrate legacy environments. I’ve worked across fintech, pharma, and AI, in both enterprise and startup settings, shaping IT strategies as organizations grow.

In my day-to-day, I design and implement infrastructure from scratch using IaC, set up CI/CD pipelines, and put out fires. I’ve debugged outages and availability issues across PostgreSQL, Nomad, and Kubernetes clusters, and performed various performance optimizations to make sure my client’s apps run smoothly.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Lead DevOps Engineer at CrypTek Consulting OU

January 1, 2023 - Present

Part-time DevOps engineer and consultant advising micro and mid-size businesses on how to scale their IT infrastructure for SaaS products. Created various infrastructures from scratch using IaC, set up CI/CD and data-ingestion pipelines for analytics, and produced SOP documentation for handover and maintenance. Helped debug performance and availability issues for components such as PostgreSQL databases and Nomad and Kubernetes clusters.

Site Reliability Engineer at Altmetric / Digital Science

May 1, 2019 - December 1, 2022

Migrated Altmetric’s legacy infrastructure to a container-based platform using Nomad; ran on bare metal data centers. Built a backup system from scratch to support heterogeneous databases, migrated the monitoring stack, and performed regular maintenance, database upgrades, and outage response.

DevOps Engineer / Blockchain Expert at Mosaic Inc

August 1, 2018 - February 1, 2019

Created a blockchain analytics platform from scratch; wrote the data ingestion pipeline; built and maintained the AWS infrastructure from scratch using IaC tools like Terraform and Ansible.

DevOps Engineer / System Administrator at Chess.com

April 1, 2017 - June 1, 2018

Maintained a large bare-metal environment on FreeBSD; set up the ELK stack, CI with Jenkins, and the MongoDB backend. Regularly addressed outages and performance issues.

System Administrator / DevOps at Monetas AG

August 1, 2014 - April 1, 2017

In a startup setting, designed infrastructure and migrations from bare metal to cloud; implemented automated provisioning, monitoring, and CI. Notable contributions include a distributed load-testing framework for The Graph Project; an inline Redis client; PoC of a contact-tracing mobile app under EU funding initiative.

System Engineer / Team Leader at IBM Delivery Centre

December 1, 2011 - August 1, 2014

Managed 500+ UNIX/AIX nodes with 24/7 support; promoted to team lead of 12. Responsible for passing SOX and GxP audits, writing documentation, and ensuring business continuity.