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▶︎Overview *position : Software Engineer (AI Agent Product Development) *salary : ¥6M – ¥13M *language : Business-level Japanese required *remote : Full remote within Japan ▶︎About the Company A rapidly growing AI startup focused on building proprietary Japanese-language LLMs and enterprise AI solutions. The company develops advanced generative AI technologies from scratch and provides AI-powered products for large enterprise clients across Japan. Their AI platforms are already adopted by hundreds of major companies, and the organization continues to scale aggressively following large-scale fundraising. Current business includes: AI Agent products for enterprise workflow automation AI implementation platforms for enterprise transformation ▶︎About the Role You will join the early growth phase of AI Agent products and collaborate closely with PMs, designers, and engineers to build next-generation AI-driven enterprise applications. This role requires engineers who can think beyond specifications, deeply understand customer workflows, and proactively solve both technical and product challenges. Main responsibilities include: Web application prototyping and production development Prompt engineering and context engineering for Generative AI Building and improving RAG/search systems Data platform development SaaS operation monitoring and improvements Technical blogging and knowledge sharing ▶︎Development environment Languages / Frameworks: Ruby on Rails, Python, Vue.js, TypeScript, Flutter, Terraform Database / Middleware: Aurora MySQL, OpenSearch, DynamoDB, Redis Infrastructure: AWS (ECS, Lambda, Step Functions, Batch, Bedrock, Cognito, SNS, SQS, SES, etc.) AI / ML: OpenAI, Azure OpenAI Service, proprietary LLMs, Transformers, vLLM Monitoring / DevOps: Terraform, Datadog, Sentry, SendGrid ▶︎Salary Annual salary: ¥6,000,000 – ¥13,000,000 Salary revision twice a year ▶︎Qualifications Required: 4+ years of web application development experience Experience developing and operating systems on AWS/GCP/Azure Experience contributing to one product/service continuously for over 1 year Business-level Japanese communication skills Preferred: Full-stack development experience Experience with NLP, Machine Learning, or LLM-based products Experience with search systems such as OpenSearch Experience collaborating closely with PdMs/designers Interest in technical blogging or community activities ▶︎Work environment Full remote work available anywhere in Japan Flexible work style with flextime system Engineering organization of around 20 members Opportunity to work on cutting-edge Generative AI products from the early phase ▶︎Allowances and Benefits Social insurance Transportation support Learning budget up to ¥240,000/year Defined contribution pension plan MacBook Pro provided Monthly research day system Free drinks at the office Regular company events and meetups Flexible remote-first culture □■━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Here's how to pick the right one and stand out in your application.
144.883Jobs
31.687IN
81%EN
That number is real. WorkMundi's database shows 144,883 open engineer roles across the world. India has the most with 31,687 jobs, followed by the United States with 30,084. If you just finished reading one job ad and felt paralyzed by choice, you're not alone—but this scale is actually an advantage. It means you can afford to be selective.
Start by geography and language. The majority of engineer ads—117,837 of them—have the job posting text written in English. Use that as one filter, but remember: the ad text language tells you nothing about whether the role actually requires you to speak English day-to-day. Read the job description carefully. Then check which countries have the volume you're targeting. Singapore, Poland, and Australia round out the top five after India and the US.
Next, learn who's hiring. Accenture has posted 2,801 engineer roles. andurilindustries, speechify, and jobgether are also actively recruiting. If you're applying to one of these names, research their hiring patterns and interview style before you apply. That homework pays off.
When you interview, expect the question every engineer hears: 'Tell me about a time you had to debug a problem that wasn't in your job description.' Have a specific story ready—not a general one. Name the tools, the deadline pressure, and what you learned. Hiring managers listen for whether you see problem-solving as part of the role itself, not a favour.