Backend Developer Jobs in Japan

Backend Developer jobs in Japan hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $72,945/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

Japan
AI/ML
Software
Data
Security
DevOps & Cloud
Leadership
Product
Design
Fintech
Hardware & Chips
Defense
Aerospace
Biotech
Energy
Robotics
Automotive
MedTech
Science
1,278 remote jobs are open to candidates in Japan.Show remote jobs

WORLD

world.co.jp
world.co.jp • Tokyo • Kobe • E-commerce Platforms • Apparel & Fashion Brands • Trust B • Hiring 4
Tokyo • Kobe • E-commerce Platforms • Apparel & Fashion Brands • Trust B • Hiring 4
WORLD is a Japanese fashion apparel group that runs brand, digital and platform businesses. Its group company World Solutions offers clients spatial design, OEM and ODM production, sales agency, store development, training and accounting services, and the group hires solution sales project managers, software engineers and infrastructure engineers. The company is based in Japan.
No named decision-maker yet.
No careers mailbox known
Open 293 daysVerified live · 1 hour ago 9 months ago Long shot · 3%

【IT/WEB】ソフトウェアエンジニア/ワールド

$46k – $76k per year • In office (Tokyo, Japan) • Full-Time
Rust
TypeScript
Databases
Google BigQuery
Amazon Aurora
AI/ML
OpenAI Codex
Claude Code
Copilot
DevOps
OpenTelemetry
AWS CDK
Amazon EKS
Google GKE
AWS Fargate
Google Cloud Run
Amazon EC2
Amazon ECS
Amazon CloudWatch
Amazon S3
Prometheus
GitHub Actions
Grafana
IAM
Terraform
GCP
CI/CD
AWS
Kubernetes
+18
Apply

AiRato

airato.jp
airato.jp • HQ: Tokyo, Japan • Computer Vision • Medical AI • Trust B • Hiring 3
HQ: Tokyo, Japan • Computer Vision • Medical AI • Trust B • Hiring 3
AiRato is a Japanese medical AI company that develops AI image analysis products to support radiation therapy for cancer, with the mission of curing more cancers. Its approach grew out of research at the radiation therapy laboratory of Tohoku University and aims to cut the long planning time of treatment, and it hires project managers, C# application engineers and Python AI engineers. The company is based in Japan.
No named decision-maker yet.
No careers mailbox known
Open 294 daysVerified live · 1 hour ago 9 months ago Long shot · 1%

アプリケーション開発エンジニア(C#エンジニア)

$32k – $44k per year • In office (Japan) • Full-Time
C#
Apply

Malme

malme.net
malme.net • HQ: Tokyo, Japan • CAD, PLM & BIM Software • Construction Management Software • Likely startup • Trust B • Hiring 6
HQ: Tokyo, Japan • CAD, PLM & BIM Software • Construction Management Software • Likely startup • Trust B • Hiring 6
Malme is a Japanese start-up that tackles the challenges of the civil engineering industry with digital transformation and AI. Its SaaS platform CiviLink serves civil engineering customers, and the company hires construction DX and AI engineers, BIM and CIM project managers and full stack engineers. The company is headquartered in Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
Open 295 daysVerified live · 1 hour ago 9 months ago Long shot · 3%

フルスタックエンジニア(正社員)

$32k – $63k per year • In office (Tokyo, Japan) • Full-Time
TypeScript
Python
JavaScript
Python
FastAPI
Frontend
Next.js
React.js
DevOps
Cloudflare
GitHub
GCP
Azure
AWS
Design
Figma
+4
Apply

Apple

apple.com
apple.com • HQ: Cupertino, United States • Smartwatches & Fitness Trackers • Operating Systems • Tablets • Laptops • Smartphones • 5000+ employees • Est. 1976 • Trust A • Hiring 3743, 331 new
HQ: Cupertino, United States • Smartwatches & Fitness Trackers • Operating Systems • Tablets • Laptops • Smartphones • 5000+ employees • Est. 1976 • Trust A • Hiring 3743, 331 new
Apple is an American multinational technology company founded in 1976 by Steve Jobs, Steve Wozniak and Ronald Wayne, and headquartered in Cupertino, California. It designs and sells consumer hardware including the iPhone, Mac, iPad, Apple Watch, AirPods and Vision Pro, together with the operating systems and silicon that run them. A growing services division built around the App Store, iCloud, Apple Music, Apple TV+ and Apple Pay now contributes a large share of profit, making Apple one of the most valuable companies in the world.
Sabih Khan · Chief Operating Officer · decision-maker
Kevan Parekh · Chief Financial Officer · decision-maker
Tim Cook · Chief Executive Officer · decision-maker
Steve Wozniak · Co-Founder · founder
No careers mailbox known
Verified live · 3 hours ago 9 months ago Long shot · 10%

Software Development Engineer - Test

Minato • Remote (Japan) • Bachelor's Degree • Japanese: C1 (Optional)
Swift
Objective-C
Python
Apply

Dinii

dinii.jp
dinii.jp • HQ: Tokyo, Japan • Likely startup • Trust C • Hiring 17, 3 new
HQ: Tokyo, Japan • Likely startup • Trust C • Hiring 17, 3 new
No named decision-maker yet.
No careers mailbox known
Likely inactiveVerified live · 1 hour ago 10 months ago Long shot · 4%

Senior SWE (Full-stack Engineer)

$44k – $95k per year • Senior • In office (Tokyo, Japan, 10am - 3pm) • Full-Time • Senior • Japanese
TypeScript
JavaScript
AI/ML
Devin
Cursor
Claude Code
Frontend
React.js
Mobile
React Native
DevOps
AIOps
GCP
AWS
+2
Apply

Zapath

zapath.jp
zapath.jp • HQ: Tokyo, Japan • AI Agents • Practice Management Software • Hiring 3
HQ: Tokyo, Japan • AI Agents • Practice Management Software • Hiring 3
Zapath is a Japanese software company that develops ClinicHub and CLINIC BOY, AI-based products used to run clinic operations, and an AI agent SaaS. Its teams handle clinic onboarding, data migration and integrations with electronic medical records and messaging, and it hires engineers and customer success staff. The company is based in Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
Open 302 daysTop 25% pay 10 months ago Long shot · 3%

【AIエージェントSaaS】エンジニア

$456k – $820k per year • In office (Tokyo, Japan) • Full-Time
Node JS
TypeScript
Ruby
JavaScript
Ruby
Ruby on Rails
Databases
Redis
PostgreSQL
AI/ML
Claude
Copilot
Frontend
React.js
DevOps
GitHub Actions
GitHub
Docker
GCP
CI/CD
AWS
QA
Swagger
+9
Apply

JSOL

jsol.co.jp
jsol.co.jp • HQ: Tokyo, Japan • Est. 2006 • Trust D • Hiring 46
HQ: Tokyo, Japan • Est. 2006 • Trust D • Hiring 46
JSOL is a Tokyo information technology company established in 2006 as a joint venture between NTT DATA and the Japan Research Institute. It provides enterprise resource planning implementation, engineering simulation software and business consulting for manufacturers and financial institutions. The company develops its own electromagnetic and structural analysis products used in automotive design.
No named decision-maker yet.
No careers mailbox known
Likely inactiveVerified live · 1 hour ago 10 months ago Long shot · 2%

【障がい者採用】システムエンジニア 要件定義から開発・保守運用まで

$32k – $41k per year • In office (Tokyo, Japan) • Full-Time
Apply
Likely inactiveVerified live · 1 hour ago 1 year ago Long shot · 2%

【エンジ】 自社開発 生産技術系CAEソフトウェア開発者(大阪)

$44k – $69k per year • In office (Osaka, Japan) • Full-Time
C++
Apply

KABU&

kabuand.com
kabuand.com • HQ: Tokyo, Japan • Personal Finance Apps & Education • Investing Apps & Robo-Advisors • Hiring 4
HQ: Tokyo, Japan • Personal Finance Apps & Education • Investing Apps & Robo-Advisors • Hiring 4
KABU& is a Japanese consumer service that gives users shares in the company in return for using its services. Customers who switch electricity, gas, mobile, internet, water server or hometown tax donation services to KABU& receive unlisted shares, and it hires marketing directors, marketing project members and fullstack engineers. The company is based in Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
Open 304 daysVerified live · 23 min ago 10 months ago Long shot · 3%

フルスタックエンジニア

In office (Tokyo, Japan) • Full-Time
AWS
Apply
Open 489 daysVerified live · 23 min ago 1 year ago Long shot · 3%

リードエンジニア

In office (Tokyo, Japan)
AWS
Apply

KOSÉ

koseholdings.co.jp
koseholdings.co.jp • HQ: Tokyo, Japan • Skincare • Cosmetics & Makeup • Est. 1996 • Hiring 1
HQ: Tokyo, Japan • Skincare • Cosmetics & Makeup • Est. 1996 • Hiring 1
KOSÉ is a Japanese cosmetics company that develops, manufactures and sells skincare, makeup and beauty products. Its group brands include Decorté, Sekkisei and Jill Stuart Beauty, and its information systems division hires security, DX and system engineers. The company is headquartered in Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
Open 304 daysVerified live · 3 hours ago 10 months ago Long shot · 3%

【オープンポジション】システムエンジニア

In office (Tokyo, Japan) • Full-Time
Apply
Report

PALACE EDGE

palace-edge.jp
palace-edge.jp • Digital Marketing • Advertising • Hiring 1
Digital Marketing • Advertising • Hiring 1
PALACE EDGE is a Japanese digital advertising and marketing company that runs advertising technology services including DSP, SSP and digital out-of-home media. It processes large volumes of advertising data to optimise campaign results and is hiring a backend tech lead to design high-concurrency, low-latency ad servers, tracking systems and cloud infrastructure. The company is based in Japan.
No named decision-maker yet.
No careers mailbox known
Open 307 daysVerified live · 1 hour ago 10 months ago Long shot · 3%

バックエンドテックリード(アドテクノロジー領域)

$23k – $32k per year • In office (Japan) • Full-Time
Ruby
Ruby
Ruby on Rails
DevOps
Nginx
Linux
Apply
Report

Anyflow

anyflow.jp
anyflow.jp • HQ: Tokyo, Japan • Low-Code & No-Code Platforms • Integration & API Management • Startup • Trust B • Hiring 6
HQ: Tokyo, Japan • Low-Code & No-Code Platforms • Integration & API Management • Startup • Trust B • Hiring 6
Anyflow is a Japanese software company that builds API-based products to automate inefficient business work, including the embeddable integration platform Anyflow Embed. It runs SaaS and enterprise businesses and hires software engineers, site reliability engineers, product managers, product designers and technical customer success staff. The company is based in Japan.
No named decision-maker yet.
No careers mailbox known
Open 308 daysTop 25% pay 10 months ago Long shot · 3%

01-1.【SaaS事業】ソフトウェアエンジニア

$456k – $683k per year • In office (Tokyo, Japan) • Full-Time
TypeScript
Python
JavaScript
Python
FastAPI
Celery
Databases
Google BigQuery
Redis
MySQL
AI/ML
Gemini
Devin
ChatGPT
Claude Code
Copilot
Frontend
ESLint
Prettier
React.js
Next.js
DevOps
Datadog
ArgoCD
Google GKE
GitHub Actions
GitHub
Terraform
GCP
Kubernetes
CI/CD
Cybersecurity
Trivy
Management
Linear
QA
Jest
+21
Apply

eiicon

eiicon.net
eiicon.net • HQ: Tokyo, Japan • Management Consulting • Angel Networks & Startup Accelerators • Trust B • Hiring 4
HQ: Tokyo, Japan • Management Consulting • Angel Networks & Startup Accelerators • Trust B • Hiring 4
eiicon is a Japanese company that operates AUBA, an open innovation platform for start-ups, small and large companies, corporate venture arms and local governments. The platform helps partners find each other for fundraising, business alliances and joint research, and the company hires frontend and backend engineers and regional innovation project managers and consultants. The company is based in Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
Open 311 daysVerified live · 1 hour ago 10 months ago Long shot · 3%

50_【開発部】バックエンドエンジニア

$32k – $63k per year • In office (Tokyo, Japan) • Full-Time
Go
TypeScript
Ruby
JavaScript
Ruby
Ruby on Rails
Databases
ElasticSearch
Google BigQuery
Amazon Aurora
Frontend
GraphQL
Next.js
Storybook
Material UI
Sass
Emotion
Remix
React.js
Mobile
Clean Architecture
DevOps
gRPC
Istio
OpenTelemetry
CircleCI
Envoy
ArgoCD
Helmfile
Amazon EKS
GitHub
Terraform
GCP
Kubernetes
AWS
Helm
QA
Sentry
+24
Apply

MNTSQ

mntsq.co.jp
mntsq.co.jp • HQ: Tokyo, Japan • Legal Software • Est. 2018 • Startup • Trust B • Hiring 8
HQ: Tokyo, Japan • Legal Software • Est. 2018 • Startup • Trust B • Hiring 8
MNTSQ builds contract management and review software for large Japanese enterprises and law firms. Founded in 2018 in Tokyo, it applies natural language processing to Japanese contract text, which most global tools handle poorly. Its clause library learns from an organisation's own past agreements.
No named decision-maker yet.
No careers mailbox known
Open 312 daysVerified live · 4 hours ago 10 months ago Long shot · 3%

リードエンジニア(バックエンド)

In office (Tokyo, Japan) • Full-Time
Ruby
TypeScript
JavaScript
Python
Python
FastAPI
Ruby
Ruby on Rails
Databases
ElasticSearch
OpenSearch
Amazon Aurora
MySQL
AI/ML
LLM
AI Agents
Frontend
Vue.js
Storybook
PostCSS
Element Plus
DevOps
Docker Compose
Datadog
AWS Fargate
Amazon ECS
Amazon CloudWatch
Terraform
Docker
GCP
AWS
+17
Apply
Open 312 daysVerified live · 4 hours ago 10 months ago Long shot · 3%

ソフトウェアエンジニア(バックエンド)

In office (Tokyo, Japan) • Full-Time
Ruby
TypeScript
JavaScript
Python
Python
FastAPI
Ruby
Ruby on Rails
Databases
ElasticSearch
OpenSearch
Amazon Aurora
MySQL
AI/ML
LLM
AI Agents
Frontend
Vue.js
Storybook
PostCSS
Element Plus
DevOps
Docker Compose
Datadog
AWS Fargate
Amazon ECS
Amazon CloudWatch
Terraform
Docker
GCP
AWS
+17
Apply

3-shake

3-shake.com
3-shake.com • HQ: Tokyo, Japan • MLOps • Cloud Consulting & Migration • DevOps & Platform Engineering • Staffing · EOR • Trust D • Hiring 17
HQ: Tokyo, Japan • MLOps • Cloud Consulting & Migration • DevOps & Platform Engineering • Staffing · EOR • Trust D • Hiring 17
3-shake is a Japanese cloud infrastructure company providing SRE services, large-scale cloud infrastructure for financial institutions, DX consulting and IT talent services. It has raised 2.35 billion yen in total, runs the Sreake SRE business and hires SRE engineers, MLOps specialists and IT consultants. The company is headquartered in Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
$41k – $82k per year • In office (Tokyo, Japan) • Full-Time
Scala
TypeScript
Java
Scala
Akka
Databases
Google BigQuery
Redis
MySQL
AI/ML
ChatGPT
DevOps
Datadog
ArgoCD
Google GKE
GitHub
Terraform
GCP
Kubernetes
AWS
QA
Sentry
+9
Apply
$41k – $82k per year • In office (Tokyo, Japan) • Full-Time
TypeScript
Node JS
JavaScript
Node JS
Nest.JS
Databases
SurrealDB
PostgreSQL
AI/ML
ChatGPT
Frontend
Next.js
Remix
React.js
DevOps
GitHub
Terraform
GCP
Kubernetes
AWS
Management
Linear
QA
Sentry
+9
Apply
$25k – $63k per year • In office (Tokyo, Japan) • Full-Time
TypeScript
Node JS
JavaScript
Node JS
Nest.JS
Databases
PostgreSQL
Frontend
Next.js
React.js
Mobile
Firebase
DevOps
GCP
Kubernetes
AWS
+3
Apply

xAI

x.ai
x.ai • HQ: Palo Alto, United States • AI Research Labs • Foundation Models • LLM & Generative AI • 1001-5000 employees • Est. 2023 • Trust A • Hiring 236, 11 new
HQ: Palo Alto, United States • AI Research Labs • Foundation Models • LLM & Generative AI • 1001-5000 employees • Est. 2023 • Trust A • Hiring 236, 11 new
xAI is an American artificial intelligence company founded by Elon Musk in 2023 with the stated goal of building models that help humans understand the universe. It develops the Grok family of large language models, distributes them through a consumer assistant, a developer API and deep integration with the X social platform, and adds image and video generation through Grok Imagine. The company runs its own Colossus supercomputer clusters in Memphis, Tennessee, is headquartered in Palo Alto, California, and merged with X Corp in 2025 to combine model development with a large consumer distribution channel.
Elon Musk · Founder & Chief Executive Officer · decision-maker
Toby Pohlen · Co-Founder · founder
Jimmy Ba · Co-Founder · founder
Igor Babuschkin · Co-Founder · founder
No careers mailbox known
Open 313 daysVerified live · 2 hours ago 10 months ago Long shot · 3%

Backend Engineer - Enterprise

In office (Tokyo, Japan)
Rust
C++
TypeScript
Python
Databases
ClickHouse
CockroachDB
PostgreSQL
AI/ML
Grok
Embeddings
RAG
LLM
DevOps
gRPC
Rest API
Docker
Kubernetes
+7
Apply

GATARI

gatari.co.jp
gatari.co.jp • HQ: Tokyo, Japan • Consumer & Utility Software • Speech & Audio AI • Trust B • Hiring 3
HQ: Tokyo, Japan • Consumer & Utility Software • Speech & Audio AI • Trust B • Hiring 3
GATARI is a Japanese startup that provides Auris, an audio-based mixed reality platform, and produces spatial experiences with it for cultural properties, model rooms, museums, commercial facilities and amusement parks. It released Auris in 2022, produced the SENSPHERE inclusive experience shown at the Osaka Expo, and hires Flutter mobile app engineers, server-side engineers and UI/UX designers. The company is based in Chiyoda, Tokyo, Japan.
No named decision-maker yet.
Careers mailbox is known
Open 315 daysVerified live · 28 min ago 10 months ago Long shot · 3%

サーバーサイドエンジニア(Typescript, Go)

$32k – $57k per year • In office (Tokyo, Japan) • Full-Time
Dart
C#
TypeScript
Python
Frontend
GraphQL
Mobile
Flutter
Firebase
DevOps
Google Cloud Run
GitHub Actions
GitHub
GCP
Management
Notion
+4
Apply

Liquitous

liquitous.com
liquitous.com • Custom Software Development • Digital Government • Hiring 2
Custom Software Development • Digital Government • Hiring 2
Liquitous is a Japanese civic technology company that develops and runs Liqlid, a participatory consensus-building platform for citizens and local governments. Liqlid supports public information, citizen feedback and co-creation of policies and is used by more than 100 municipalities and regions in Japan and abroad, and the company hires product engineers and backend engineers. The company is based in Japan.
No named decision-maker yet.
Careers mailbox is known
Open 316 daysVerified live · 1 hour ago 10 months ago Long shot · 3%

プロダクトエンジニア

$44k – $76k per year • In office (Japan) • Full-Time
Node JS
TypeScript
JavaScript
Databases
PostgreSQL
AI/ML
Copilot
Frontend
Tailwind CSS
SvelteKit
Svelte
DevOps
GitHub
Azure
Design
Figma
+3
Apply
Open 340 daysVerified live · 1 hour ago 11 months ago Long shot · 3%

9. バックエンドエンジニア

$44k – $76k per year • In office (Japan) • Full-Time
TypeScript
JavaScript
Databases
PostgreSQL
AI/ML
OpenAI Codex
Claude Code
Frontend
SvelteKit
Svelte
DevOps
OpenTelemetry
Bicep
GitHub Actions
Grafana
Terraform
Azure
CI/CD
+6
Apply
Report

Mazrica

mazrica.com
mazrica.com • HQ: Tokyo, Japan • CRM Software • Likely startup • Trust D • Hiring 14
HQ: Tokyo, Japan • CRM Software • Likely startup • Trust D • Hiring 14
Mazrica is a Japanese software company that builds the cloud sales support application Mazrica and other AI solutions for sales and marketing teams. It holds ISO/IEC 27001 certification and hires customer success managers, inside sales staff, an FP&A head, graduates and engineering interns. The company is based in Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
Likely inactiveVerified live · 4 hours ago 10 months ago Long shot · 2%

エンジニア | 長期インターンシップ

$16k per year • In office (Tokyo, Japan) • Internship
Ruby
TypeScript
JavaScript
Python
Ruby
Ruby on Rails
Databases
Amazon Aurora
Redis
MySQL
Frontend
React.js
DevOps
Datadog
Amazon EKS
AWS Lambda
Amazon S3
GitHub Actions
GitHub
Git
CI/CD
AWS
Kubernetes
+11
Apply
Likely inactiveVerified live · 4 hours ago 1 year ago Long shot · 2%

エンジニア | 新卒・第二新卒歓迎

$25k – $35k per year • In office (Tokyo, Japan) • Full-Time
Ruby
TypeScript
JavaScript
Python
Ruby
Ruby on Rails
Databases
Amazon Aurora
Redis
MySQL
Frontend
React.js
DevOps
Datadog
Amazon EKS
AWS Lambda
Amazon S3
GitHub Actions
GitHub
Git
CI/CD
AWS
Kubernetes
+11
Apply

Molten

molten.co.jp
molten.co.jp • Hiroshima • Hiring 1
Hiroshima • Hiring 1
Molten is a manufacturer of rubber and resin products for sports, health and nursing care, marine use, automotive parts and construction. Its industrial products division is digitalising its automotive parts plants and hires system engineers to build tools that visualise equipment efficiency and loss factors using VB.NET and JavaScript. The company is based in Japan.
No named decision-maker yet.
No careers mailbox known
Open 319 daysVerified live · 4 hours ago 10 months ago Long shot · 3%

自動車部品事業 生産性向上を担うシステムエンジニア

$28k – $38k per year • In office (Hiroshima, Japan) • Full-Time
Apply
Report
hitachi-pi.co.jp • Tokyo • Osaka • Healthcare & Life Sciences Consulting • Managed IT Services (MSP) • IT Consulting & Digital Transformation • Trust D • Hiring 14
Tokyo • Osaka • Healthcare & Life Sciences Consulting • Managed IT Services (MSP) • IT Consulting & Digital Transformation • Trust D • Hiring 14
Hitachi Pharma Information Solutions is a Hitachi group IT company providing ICT solutions, system operations and IT outsourcing for the pharmaceutical and healthcare industry. It supports clients such as Shionogi and hires infrastructure, network, security and SAP engineers. The company is based in Japan, with offices in Osaka and Tokyo.
No named decision-maker yet.
No careers mailbox known
$16k – $28k per year • In office (Tokyo, Japan) • Full-Time
Apply
Machines can read this selection · checked 15:43 UTC
Backend Developer Jobs in Japan
Frequently asked questions
How many Backend Developer jobs in Japan are available on Alion?
There are currently 168 active listings from 86 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in Japan pay?
The average salary is around $72,945 per year based on the current listings.
Are remote options available for Backend Developer jobs in Japan?
Yes, many of these roles offer remote or hybrid work, and you can filter listings by remote, relocation and visa sponsorship.
How do I apply for Backend Developer jobs in Japan?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.