Orhun Dalabasmaz

// principal engineer & sre

Orhun Dalabasmaz

Principal Software Engineer with 15+ years of experience building resilient distributed systems, leading engineering teams, and scaling cloud infrastructure on AWS.

Who I am

I'm a Principal Software Engineer based in Munich, Germany. Over the past 15+ years, I've designed and operated production systems that serve millions of users, built and grown engineering teams, and driven technical and organisational decisions at scale.

I've been at Atlassian since 2017 — first as a Site Reliability Engineer at Opsgenie (pre-acquisition), then as Engineering Manager leading the Change Management team under Jira Service Management. Along the way I've worn the SRE, EM, and IC hats simultaneously, which gives me an unusually wide view of what it takes to ship reliable software fast.

I care deeply about observability, reliability, and the operational reality of systems once they're in production. A good system is one that doesn't wake people up at 3am — and when it does, recovers gracefully.

Munich, Germany Atlassian AWS Community Builder
AWS Certified Solutions Architect
Amazon Web Services
Oracle Certified Professional
Java Developer
MSc Computer Engineering
Hacettepe University · 2018
BEng Computer Engineering
Hacettepe University · 2010
15+ Years Industry Experience
SRE · Backend · Engineering Leadership

Experience

A track record built across startups, scale-ups, and enterprise.

2017 — Present 8 years
Atlassian (prev. Opsgenie)
Engineering Manager · JSM SRE Manager Site Reliability Engineer

Started as SRE at Opsgenie, a mission-critical incident management SaaS serving enterprise on-call teams worldwide. After acquisition by Atlassian in 2018, took on engineering management responsibilities — leading the SRE team, then transitioning to lead the Change Management product team under Jira Service Management. Responsible for technical leadership, architecture decisions, delivery, hiring, and growing engineers.

JavaKotlin SpringPython AWSEKS DynamoDBSQS/SNS DockerMicroservices Bitbucket CI/CD
2013 — 2017 4 years
Innova
Senior Software Engineer

Developed and maintained SOM (Service Order Management), a SOA platform enabling enterprise systems to collaborate and integrate. Built real-time monitoring tools, managed the full DevOps lifecycle, and containerised the development environment.

JavaPython HibernateOracle DB WebLogicBPMN KafkaGrafana InfluxDBJenkins
2010 — 2013 3 years
Cybersoft
Software Engineer

Designed, developed, and maintained a bank-customer Legal Tracking System handling debt tracking, cash proceeds, and written warnings — widely used by bank personnel and attorneys. Owned the full stack from design to infra management on Linux/RHEL application servers.

JavaJavaScript Oracle DBWebLogic RHELBI Reports

Technologies

What I build, break, and monitor at scale.

Languages & Frameworks
Java Kotlin Python Spring Boot Hibernate Shell
AWS Cloud
EC2 EKS Lambda DynamoDB S3 SQS / SNS CloudFormation CloudFront Route53 KMS / IAM
Infrastructure
Docker Kubernetes Linux Jenkins Bitbucket CI/CD Kafka BPMN
Observability
Grafana InfluxDB Datadog Splunk
Databases
DynamoDB PostgreSQL Oracle DB
Practices
SRE DevOps Microservices On-Call Incident Mgmt Scalability

I write on Medium

25+ published articles
AWS & Cloud SRE & Backend Engineering Leadership Tech & Personal
Read on Medium