Senior Frontend Engineer
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
UI Engineering, Automated Reasoning, Vue.js
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Overview
Country
Japan
City
Tokyo
Category
Automated Reasoning
Required Background
Software Engineering, Computer Science
Location
Tokyo
Outside Tokyo
Not available
Relocation
Required
Employment Type
Full-Time
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Responsibilities and Expectations
Design, develop, and maintain high-quality, scalable, and performant user interfaces using Vue.js.
(01)
Translate user workflows and product requirements into intuitive, accessible UI — with a strong sense for visual design and UX.
(02)
Collaborate closely with backend engineers, product managers, and designers to deliver intuitive and responsive user experiences.
(03)
Build reusable UI components and improve frontend best practices, coding standards, and architectural guidelines.
(04)
Contribute to full-stack development efforts involving Rust and Python services where appropriate.
(05)
Optimize application performance, accessibility, and cross-browser compatibility.
(06)
Participate in technical design discussions, code reviews, and mentoring of junior engineers.
(07)
Take ownership of features from concept through production deployment and ongoing maintenance.
(08)
Work effectively in a fast-paced, collaborative, and international engineering environment.
(09)
Experience
5+ years of professional software engineering experience with a strong focus on frontend development.
essential
Proven experience building modern web applications in frameworks such as using Vue.js.
essential
Experience collaborating with cross-functional teams in agile development environments.
essential
Familiarity with backend systems and APIs, ideally with exposure to Rust and/or Python.
advantageous
Experience shipping production-grade applications with strong attention to usability, maintainability, and performance.
advantageous
Experience working with CI/CD pipelines and containerized development environments.
advantageous
Prior experience mentoring engineers or leading frontend initiatives is highly desirable.
advantageous
Technical skills
Strong proficiency in developing with modern component-based JavaScript/TypeScript libraries such as Vue.js
essential
Solid understanding of HTML5, CSS3, responsive design, and frontend architecture.
essential
Experience integrating RESTful APIs and backend services.
essential
Hands-on experience with GitHub Actions or similar CI/CD platforms.
essential
Strong understanding of software engineering best practices, testing methodologies, and code quality standards.
essential
Familiarity with Git and collaborative development workflows.
essential
Ability to design, understand, and improve user workflow supported by web-based tools.
essential
Familiarity with UI design principles.
essential
Experience with hardware accelerated frontend technologies such as WebGL.
advantageous
Familiarity with Rust and Python backend ecosystems.
advantageous
Knowledge of modern web UI frameworks and component libraries.
advantageous
Experience with frontend performance optimization and accessibility standards.
advantageous
Experience with cloud infrastructure and DevOps practices.
advantageous
Understanding of secure web application development principles.
advantageous
Open-source contributions or involvement in technical communities.
advantageous
Educational background
Degrees in Software Engineering, Computer Science, 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. We are looking for team players.
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.
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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.