5 Skills You Need in Japan: DevOps
If you want to work as a DevOps, Infrastructure, or Site Reliability Engineer (SRE) in Japan, what skills are employers actually looking for?
We spoke with Uros, Team Leader of Build+’s Back-End Engineering team, to break down the technical skills that consistently come up when companies hire infrastructure-focused engineers in Japan.
As more Japanese companies modernize their infrastructure, move workloads to the cloud, and separate infrastructure responsibilities from traditional back-end engineering, engineers with strong DevOps and SRE skills are becoming increasingly important.
Here are five skills that can make you a stronger candidate.
First: What Does a DevOps or Infrastructure Engineer Actually Do?
One useful way to understand DevOps and infrastructure engineering is to compare it with back-end development.
Back-end engineers typically build the logic behind an application. They work on areas such as:
Application features
APIs
Databases
Data processing systems
Business logic that directly affects the end user
Infrastructure, DevOps, and SRE engineers focus on the systems that allow those applications to operate reliably, securely, and at scale.
As Uros explains, you can think about it like this:
Back-end engineers build the cars. Infrastructure and DevOps engineers build the roads, fuel stations, and traffic systems that allow those cars to reach their destination.
Your job is not simply to keep servers running. You are creating the environment that allows engineering teams to deploy, operate, scale, monitor, and improve their products.
So, what do you need to know?
1. Automation and Infrastructure as Code
The first major skill is automation and Infrastructure as Code (IaC).
Rather than manually configuring servers and cloud environments, infrastructure engineers increasingly manage resources through code.
Some of the most important technologies include:
Terraform
Ansible
Cloud-native infrastructure tools
Configuration management and deployment automation
Why does Infrastructure as Code matter?
Many companies in Japan are moving away from traditional on-premise infrastructure toward private and public cloud environments.
Managing that transition manually quickly becomes difficult.
Infrastructure as Code allows you to define and reproduce infrastructure through code, making environments easier to:
Deploy
Scale
Update
Reproduce
Audit
Maintain
It also reduces repetitive manual work and helps engineering teams build more consistent environments.
If you are targeting modern DevOps or infrastructure positions in Japan, experience with tools such as Terraform is becoming especially valuable.
2. Observability and Monitoring
Building infrastructure is only one part of the job.
You also need to understand what is happening inside your systems.
That is where observability and monitoring come in.
Common tools include:
Prometheus
Grafana
Logging platforms
Distributed tracing tools
Cloud monitoring services
Observability generally revolves around three major areas:
Metrics, logs, and traces.
Together, these give you visibility into how an application and its infrastructure are behaving.
Understanding SLIs and SLOs
For SRE-focused positions, you may also be expected to understand concepts such as:
SLI — Service Level Indicator
A measurable indicator of how a service is performing.
SLO — Service Level Objective
The target level of performance or reliability you want the service to achieve.
For example, an engineering team might monitor availability, latency, or error rates and establish objectives around those measurements.
The goal is not simply to react when something breaks. Strong observability allows you to identify problems earlier and understand why they are happening.
3. Cloud and Container Orchestration
Cloud infrastructure is now fundamental to many DevOps positions.
Three platforms dominate the conversation:
AWS
Google Cloud Platform (GCP)
Microsoft Azure
You do not necessarily need deep expertise in all three. However, strong hands-on experience with at least one major cloud platform can significantly strengthen your profile.
Alongside cloud knowledge, companies increasingly look for experience with container technologies such as:
Docker
Kubernetes
Why are containers important?
Containers allow companies to package applications consistently and deploy them across different environments.
Kubernetes then helps engineering teams manage those containers at scale.
That can include:
Deployment
Scaling
Load balancing
Service availability
Container management
Automated recovery
These skills are valuable across industries.
One change Uros has noticed in Japan is that infrastructure work that was previously handled by back-end engineers is increasingly becoming its own specialized engineering function.
That separation has existed for longer in many Western technology companies, but Japanese companies are increasingly moving in the same direction.
For engineers, that means more dedicated opportunities in DevOps, cloud infrastructure, platform engineering, and SRE.
4. Scripting and Tooling Development
DevOps is fundamentally about making systems and engineering processes more efficient.
That means scripting is another important skill.
Depending on the company and environment, you may use languages such as:
Python
Bash
Shell scripting
Go
Other internal automation languages and tools
But the important part is not simply knowing a programming language.
You need to understand how to use code to eliminate repetitive work.
Infrastructure engineers often create internal tools that help engineering teams automate areas such as:
Deployment
Environment configuration
Monitoring
Infrastructure provisioning
Testing
Operational workflows
The more effectively you can automate routine engineering work, the more time teams can spend improving the actual product.
And ideally, good tooling and monitoring allow you to identify potential issues before users ever notice them.
5. Reliability Engineering and Incident Response
The final technical skill is reliability engineering and incident response.
Modern infrastructure has to do more than work under normal conditions.
You need to design systems that continue operating when something goes wrong.
That means understanding concepts such as:
High availability
Fault tolerance
Redundancy
Scalability
Disaster recovery
Incident management
Root-cause analysis
When outages do happen, DevOps and SRE engineers are often responsible for helping identify the problem, restoring services, and preventing the same issue from happening again.
The objective is to build systems that are:
Reliable. Scalable. Secure. Easy to deploy.
The stronger your systems are in each of these areas, the easier it becomes for the wider engineering organization to develop and release products.
One More Skill You Shouldn't Ignore: Communication
Technical ability alone may not be enough to secure a DevOps position in Japan.
Communication is also extremely important.
Infrastructure engineers rarely operate independently. You may need to communicate with:
Back-end engineers
Front-end engineers
Security teams
Product teams
Engineering managers
Other infrastructure engineers
Business stakeholders
When an incident happens, clear communication becomes even more important.
You need to explain what is happening, coordinate with different teams, and help people make decisions quickly.
For international engineers in Japan, Japanese ability can also significantly expand the number of opportunities available to you.
While requirements differ from company to company, many of the employers Uros works with look for at least conversational Japanese.
You do not necessarily need perfect Japanese, but being able to communicate effectively with your engineering team can make you a much stronger candidate.
The 5 DevOps Skills to Focus On
If you are preparing for a DevOps, Infrastructure, or SRE role in Japan, focus on developing these five areas:
Automation & Infrastructure as Code — particularly tools such as Terraform and Ansible.
Observability & Monitoring — including metrics, logs, tracing, SLIs, and SLOs.
Cloud & Container Orchestration — particularly AWS, GCP, Azure, Docker, and Kubernetes.
Scripting & Tooling Development — using code to automate engineering and operational processes.
Reliability Engineering & Incident Response — designing resilient systems and responding effectively when problems occur.
And alongside your technical skills, keep developing your communication and Japanese ability.
DevOps is no longer simply about managing servers. You are helping create the infrastructure, automation, and reliability that allow an entire engineering organization to move faster.
If you can demonstrate those skills, you will be much better positioned for the growing number of DevOps, infrastructure, platform engineering, and SRE opportunities in Japan.
