Senior Backend Engineer (Java/Go)

About the project

Hi there! If you’re seeking a high-impact role within an ambitious and fast-growing software house, you might have just found your perfect match!

Our client is a global leader in Intelligent Observability platforms that unify telemetry data with business outcomes to optimize tech spend and protect revenue in real time.

We are looking for a Senior Backend Engineer to join a high-impact initiative focused on migrating core backend services (Java, Go) from Intel architecture to ARM-based processors (AWS Graviton / Azure Cobalt). Roughly 50–60% of the services are already migrated, and you will own the end-to-end transition and performance optimization of the remaining infrastructure.

This is how we organize our work

This is how we work

• you have influence on the technological solutions applied
• you focus on product development
• you focus on code maintenance
• agile

Team members

• backend developer
• technical leader
• architect
• devOps

Your responsibilities

• Refactor, optimize, and migrate core Java and Go services to run efficiently on ARM CPU architectures (AWS Graviton / Azure Cobalt).
• Analyze performance bottlenecks and hardware-level instruction behavior during x86 to ARM migration.
• Work with Kubernetes (EKS) to deploy, monitor, and scale migrated workloads in enterprise environments.
• Ensure seamless CI/CD delivery pipelines and infrastructure automation using Terraform and AWS services.
• Collaborate closely with cloud architecture and platform security teams across global time zones.

Our requirements

• 5+ years of hands-on experience building scalable services in Java and/or Go.
• Practical experience with AWS (EKS, EC2) and Kubernetes.
• Good understanding of CPU architectures (x86 vs. ARM) and performance tuning for cloud-native applications.
• Working knowledge of Terraform, Docker, and CI/CD automation.
• Openness to occasional pre-scheduled evening calls (between 17:00–21:00 CET) to sync with US-based stakeholders.

What we offer

• Private medical care
• Multisport card
• Friendly, informal atmosphere, and direct contact with everyone in the company
• Modern technologies

This is how we work on a project

• Continuous Integration
• DevOps
• integration tests
• performance tests
• test automation

Benefits

• Gift vouchers for kids (birthdays, Christmas, Child's Day)
• sharing the costs of sports activities
• private medical care
• remote work opportunities
• flexible working time
• extra social benefits
• baby layette
• school layette
• employee referral program
• charity initiatives

Recruitment stages

• HR call
• Technical call (45-60 min..)
• Meeting with our Client (45 min.)

ACAISOFT POLAND Sp. z o.o.

Acaisoft is a Polish company partnering with industry leaders across healthcare, telecom, fintech, and insurance. We specialize in delivering cloud-native, data-driven, and scalable solutions for enterprises operating in fast-moving environments. We currently serve around 30 active customers worldwide, mostly based in the U.S. We specialize mainly in:

* Data Engineering & AI

* Cloud-Native Solutions, including Cost Optimization

* Platform Engineering

Since technology is constantly being developed at such a fast pace, we always strive to be one step ahead of the market and keep up with the latest solutions.