Java Software Engineer (Javaエンジニア)

An interesting opportunity for an experienced Javaエンジニア to work on products at the intersection of データ (data) and 音楽 (music) with BMAT Music Innovators. If you love music—whether as a passionate listener or a musician yourself—you’ll help us process massive audio datasets and power services used across the music industry.

You’ll work with Unix-based systems and tackle infrastructure challenges at scale, all in a supportive, リモートワーク (remote work) environment with the option to meet your team in person.

Being based anywhere in Japan is a must for this role.

We’re looking for someone with strong skills in Java, PHP (mainly for maintenance), and BASH scripting, plus solid MySQL experience.

You’ll join a small, focused engineering team building and maintaining robust backend systems that handle huge amounts of データ and keep critical music services running smoothly.

If you’re curious, hands-on, and know how to make systems work reliably—especially with AWS—we’d love to meet you.

Recruitment agencies: we kindly request that you refrain from reaching out, as we are not seeking your services at this time. Thank you.

Our stack

• Java for core backend services
• PHP for legacy system maintenance
• BASH scripting for automation and operations
• MySQL as our primary database
• Optional experience with frameworks: Symfony, Searsar2, Spring
• Optional AWS tools: EC2, CloudSearch, ElasticBeanstalk, Route53, RDS
• We work in Unix environments

Key Responsibilities

• Design and implement reliable, scalable software systems
• Maintain and improve existing PHP-based systems
• Collaborate with engineers, product managers, and business teams
• Write clean, testable, well-documented code
• Debug and optimize applications for performance and reliability
• Contribute to design decisions and improve technical documentation
• Take part in code reviews and mentoring

Requirements

• 5+ years of software development experience
• Strong experience with Java and MySQL
• Solid experience writing BASH scripts and working in UNIX environments
• Working knowledge of PHP (for maintenance work)
• Experience designing and maintaining distributed systems
• Good communication skills in English (Japanese is a plus)
• A sharp eye for system design and attention to detail

Nice to have

• Experience with AWS services
• Familiarity with any of the mentioned frameworks
• Interest in infrastructure and automation

Interview Process

• Screening call with the People team
• Live coding challenge
• Interview with the team manager and engineers

You Can Enjoy

• Flexible working hours and location
• Flat hierarchy
• You can make the role your own and run your own development
• Online language classes to improve your Spanish or English
• Online and onsite courses and music industry workshops run by in-house experts
• We’ll provide you with all equipment needed for you to be comfortable
• Unlimited time off because we believe that you know best when you need to rest.
• Barcelona HQ office available to you, kitted out with a rehearsal room https://www.bmat.com/bmat-house/

Who the FAQ are BMAT

BMAT started in 2005 when a group of engineers with a passion for music decided to spin-off from an audio research lab in Barcelona. We’re now over 240 people, spread across Barcelona, Buenos Aires, Lima, Rio de Janeiro, London, Paris, New Jersey, Oslo, LA, Singapore, Tokyo, Manila, Bangkok and Lagos.

We’re a team of pretty decent people who enjoy working with each other. We’re open-minded and well-traveled, coming from all parts of the world. We’ve got rappers, producers, cello players, DJs, and songwriters. The passion for music and the excitement for innovative technology have proven to make a good combination.

BMAT has grown as a company of companies. Within BMAT there are a number of products and services that developed semi autonomously for different players – Digital Service Providers, Publishers and Collective Management Organisations.