Backend Jobs in Japan
There are 65 open Backend jobs in Japan on freehire right now. 5 of them were posted recently. The skills employers ask for most often are api, cloud and ai.
Most requested skills
- api 69%
- cloud 55%
- ai 54%
- docker 48%
- github 45%
- gcp 43%
- kubernetes 43%
- aws 40%
How the work is done
- Hybrid 15 · 23%
- Onsite 6 · 9%
- Remote 6 · 9%
Visa sponsorship offered in 91% of the 22 postings that state a position on it.
Seniority
- Senior 22
- Lead 2
- Staff 2
Who is hiring
- 501-1000 employees 15
- 1000+ employees 13
- 11-50 employees 2
- 51-200 employees 1
English level
- C1 71%
- B1 19%
- A2 5%
- B2 5%
Share of the postings that state a required level (at least 20% of this market do).
Backend Engineer / バックエンドエンジニア
Backend Engineer building and operating backend applications (PHP, Java, SpringBoot, Kotlin, MySQL/AuroraDB) for PayPay Securities' mobile brokerage platform within the PayPay fintech ecosystem.
Software Engineer, Ads Backend
Build and scale high-performance backend systems for SmartNews's ad delivery platform, focusing on targeting, ranking, auction, and measurement in a low-latency, high-throughput environment using Java/Kotlin/Go with Kafka, Redis, and SQL.
Backend Engineer - Enterprise
Builds and maintains scalable backend systems in Rust/C++ and Python, integrating AI workflows with databases like PostgreSQL and Kubernetes, to deliver enterprise-grade solutions.
Senior Software Development Engineer (Backend), Advertisement Delivery Platform - Global Ad Technology Supervisory Department (GATD)
Develop and maintain the backend of Rakuten's ad delivery platform (RUNA) using Golang, RDBMS, and public cloud services, leading feature development and collaborating with stakeholders across the group.
Product Engineer, Backend(Shops) - Mercari
Backend product engineer on Mercari's Shops team building and shipping Go backend features (catalog, checkout, order management) for a B2C marketplace, using Go, gRPC/REST APIs, PostgreSQL, GCP, and Kubernetes.
Senior Backend Engineer
Build and scale core payment services using Java/Spring Boot on AWS, focusing on high-traffic, secure backend systems for PayPay Card’s credit and cashless payment platform.
Backend Engineer
Build and scale core payment services using Java/Spring Boot on AWS, focusing on high-traffic systems and microservices architecture for PayPay Card’s credit platform.
Backend Engineer, Cloud Platform User/Role Permission Management
Build and maintain backend services for cloud platform user/role permission management using Go, Python, and Dgraph, deployed on Kubernetes with CI/CD.
Senior Backend Engineer, BSS Platform
Build and maintain high-performance backend services for Rakuten Mobile’s billing, order management, and CRM systems using Java/Spring Boot, Kubernetes, and PostgreSQL.
Senior Backend Engineer
Build and maintain scalable backend services and APIs for Web2/Web3 products, integrating blockchain infrastructure and optimizing distributed systems for performance and reliability.
Senior Rust Backend Engineer
Build and optimize high-performance trading APIs in Rust, handling real-time WebSocket feeds, state consistency, and low-latency systems for crypto trading.
Senior Backend Engineer TypeScript
Build and scale backend services for a crypto app, integrating Web2 systems with wallets, DeFi protocols, and on-chain data using TypeScript, NestJS, and distributed systems.
Software Engineer for Backend System
Build and maintain backend systems for IoT connectivity, billing, and device logistics, using Java and cloud infrastructure to support global-scale services.
Senior Backend Engineer, BSS Platform - BSS Development Department (BSDD)
Senior Backend Engineer to design, build, and maintain Java/Spring Boot microservices for Rakuten Mobile’s billing, order management, and CRM systems, deployed on Kubernetes in a global team.
Senior Software Engineer, Backend Development (Playable Ads)
Senior backend engineer building scalable AI-powered ad services for playable ads, using C#, ASP.NET Core, and distributed systems on AWS/GCP.
Backend Engineer
Develops and maintains a high-throughput cybersecurity platform in Rust, handling millions of security events per second with low-latency distributed services and real-time data processing.