Senior Backend Engineer, Automated Reasoning
Noeon Research is an ambitious deep-tech startup working on a novel natively agentic graph-neuro-symbolic system with general capabilities. We are an international 30-people team with headquarters in Tokyo, Japan.
We are developing Noeon – a novel natively agentic AI system with general capabilities based on carefully selected principles from mathematical category theory, knowledge representation, and computational linguistics. Our technology prioritizes interpretability, revisability, and generality, allowing for safe and efficient adaptation to a changing world. We prioritize AI safety by focusing on interpretability in order to unlock capabilities safely.
Keywords
Backend Engineering, Automated Reasoning, Rust, C, C++, Python, Docker, TypeScript
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Overview
Country
Japan
City
Tokyo
Category
Automated Reasoning
Required Background
Software Engineering, Computer Science, Mathematics
Location
Tokyo
Outside Tokyo
Not available
Relocation
Required
Employment Type
Full-Time
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Responsibilities and Expectations
Make contributions to critical components in the development of a distributed reasoning system.
(01)
Take ownership over specific Engineering artifacts such as services or libraries.
(02)
Help create a system that truly understands programming languages.
(03)
Experience
At least 5 years of experience in Software Engineering.
essential
Hands-on experience in distributed systems, AI, AAA game development, or scalable web technology.
essential
Work experience in startups.
advantageous
Technical skills
Proficiency in Rust/C++/C, Python, a bit of TypeScript
essential
Experience in building backends.
essential
Experience with concurrency and threading.
essential
Knowledge of a modern web UI framework.
advantageous
Experience with containerization frameworks such as Docker.
advantageous
Experience with graph data structures and algorithms.
advantageous
Educational background
Degrees in Software Engineering, Computer Science, Mathematics, or a related technical discipline.
essential
Soft skills
Proactive mindset to stay updated with the latest advancements in AI.
essential
Fluent in conversational and written business English (C1+).
essential
Ability to work collaboratively in cross-functional teams.
required
Experience working using Agile framework.
advantageous
Personal qualities
Individual responsibility. You respect key deadlines and pass on the results of your work to your teammates in an appropriate condition.
(01)
Lifelong learning. You recognize areas for growth and proactively learn new skills and knowledge for your current and prospective areas of responsibility.
(02)
Vision & planning. You can plan your work several weeks ahead and can juggle multiple projects at once. You know when to postpone a task to keep your workload manageable.
(03)
Thoroughness. You cover every important aspect of your task leaving out no crucial detail.
(04)
Proactiveness and initiative. You offer help if you have spare capacity. You take initiative and pitch your own projects to others.
(05)
Critical thinking. You question every judgement, claim or number and can engage in a healthy debate with your teammates.
(06)
Dynamic, out-of-the-box mindset. You can challenge existing ways, abandon well-trodden paths and embrace the new in the name of the great.
(07)
What we are offering
Competitive Salary: Depending on the candidate's skill level, our target salary range is 14-17M JPY per year and equity compensation (options).
(01)
Flexible Schedule: Outside scheduled team meetings, teammates are free to work on their tasks independently. When to work is a personal choice. Just do not overwork – that is inefficient.
(02)
Autonomy: High autonomy is crucial for us – the small and agile team can achieve a breakthrough if its members are professional and independent. However, we promote helping each other. That is crucial too.
(03)
Low Bureaucracy: What we value most are performance and results, not a strict process following. However, metrics, processes, and documentation are important too. We just keep their priorities low.
(04)
Medical Allowance: Japanese Social Security and compensation of additional medical costs, comprehensive yearly health checkup.
(05)
Language Courses: Support for English and Japanese language training.
(06)
Other: Visa Sponsorship, Relocation Allowance, Travel Allowance, Monthly commute expense in Japan.
(07)
How we are different
Not just an ML
(01)
People tend to think that AI is solely Machine Learning, like ChatGPT (or DALL-E 2, or Microsoft Bing, or ChatSonic). We are building our solution on an alternative architecture which incorporates ML as a part.
Going beyond
(02)
We put much effort into profound research and development of new underlying technologies rather than reusing existing ones. We like to explore unfairly neglected and non-conventional approaches to AI.
Safety and Alignment
(03)
We want to be responsible in our research and development. We don't turn our noses up at AI safety research and take the issue of alignment seriously.
Just write to us! Please attach your CV or LI
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© 2026 Noeon Research. All rights reserved.
Midtown Tower 34F, 9-7-1 Akasaka, Minato-ku, Tokyo, Japan
Midtown Tower 34F, 9-7-1 Akasaka, Minato-ku, Tokyo, Japan
Noeon Research UK Ltd is a registered company in England and Wales. Registration number: 16093898. VAT registration number: 490 4632 84.
C/O Mackrell Llp, 5 Pemberton Row, London, England, EC4A 3BA.
C/O Mackrell Llp, 5 Pemberton Row, London, England, EC4A 3BA.