What we are building
FermatMind is more than a project creating one-off test pages. We want to build an ongoing development system that helps users understand themselves and careers, develop capabilities, manage risks and review their changes over the years ahead. Such a system requires lasting collaboration across content, methods, product, engineering, design, data and operations; no single role can build it alone.
Joining FermatMind therefore means both building features and helping decide how a tool influences people: whether it helps users understand more clearly, rely on better evidence and take action; avoid labels and manufactured anxiety; stay restrained with complex questions; and maintain boundaries under pressure to grow.
Why this work is worthwhile
Young people lack high-quality infrastructure at many important points: choosing a major, deciding whether to change direction, understanding strengths and weaknesses, managing anxiety and burnout, building evidence of capabilities and assessing industry risks. The internet has plenty of content, but too few tools that can be tested and reviewed with clear boundaries.
If you regard helping someone understand themselves more clearly as serious work rather than content packaging, you will find this both difficult and worth committing to. It requires respect for science, product, language, engineering and human vulnerability. In every detail, we must ask whether our work actually helps users, rather than merely makes a page more attractive.
Who we welcome
Research, methods and content
- People with backgrounds in psychology, psychometrics, education, career development, behavioral science or related fields.
- People who explain complex concepts clearly and turn research logic into language users can understand.
- People skilled in content research, editing, knowledge architecture, case design or methodological writing.
Product, design and user experience
- Product managers, interaction designers, visual designers and user researchers who want to turn abstract theories into genuinely usable experiences.
- People who value information hierarchy, interpretation quality, feedback loops and experiences that support long-term retention.
Engineering, data and systems
- Frontend, backend, full-stack, data, algorithm and AI engineers.
- People who can handle complex flows, data structures, permission boundaries, privacy constraints and stability problems.
Growth, operations and partnerships
- People who want to grow the user base and operate products over the long term without manufacturing anxiety or exaggerating promises.
- People who can establish clear boundaries and long-term trust with schools, institutions and partners.
How we work
FermatMind favors high standards, a small team, strong execution, fast iteration and serious review. We want clear principles to replace inefficient processes, evidence and results to replace guesswork, and collaboration across functions to replace isolated work.
- Look for solutions before excuses.
- Respect facts and update judgments quickly, rather than cling to preconceived solutions.
- Stay creative, but do not use inspiration as a reason to skip validation.
- Remain sensitive to users' feelings, privacy boundaries and the consequences of language.
- Work independently while being willing to refine views through intensive collaboration.
We do not use obscure language to appear professional or encourage excessive control in place of clear responsibility. Effective work often comes from defining the problem clearly, writing clear goals, keeping clear evidence and continuing to iterate.
Qualities we value
- Respect for human complexity, rather than rushing to classify and judge.
- The ability to explain complex concepts clearly, rather than use complexity as a barrier.
- Systems thinking that recognizes connections among content, product, engineering, data and governance.
- Responsibility and ownership, with willingness to see work through.
- Sensitivity to privacy, ethics and high-risk settings, rather than defaulting to doing something first and dealing with consequences later.
- Willingness to refine work over time, rather than interest only in short-term attention.
If you care more about lasting value than quickly appearing impressive, you are likely to fit here.
What working here feels like
You will be close to real user problems. Our work is neither purely abstract research nor internet features focused only on attractive packaging. You will see how people use these tools when uncertain about careers, confused about relationships, anxious about abilities or stuck in their development. You will also see how imprecise copy, an unclear boundary or a premature conclusion can affect them.
That makes the work harder and more meaningful. You will be expected to be creative and restrained, move forward and reflect, and care about completion and consequences. For people willing to take on this intensity, it can be a deeply developmental work experience.
Applications and hiring principles
FermatMind welcomes open applications. Even when no role is publicly listed, you may submit concise, persuasive materials through the official recruitment channel: who you are, your strengths, why you care about these questions, and projects or work that demonstrate what you have done.
- Research and content: include representative writing, research, course designs, reports or case materials.
- Design and product: include a portfolio explaining how you address complex information and user decisions.
- Engineering and data: include projects, code repositories, system design explanations or examples of breaking down problems.
- Growth and operations: include real projects, data reviews, methodological frameworks and boundary judgments.
We seek a hiring process that respects differences and equal opportunity, without unfair judgments based on gender, region, age, school labels, physical condition or other factors unrelated to the role. Application information should also be handled under privacy and minimum necessity principles.
Currently open roles
FermatMind is building an AI-native assessment and structured decision support platform. We seek people who can combine psychometrics, product design, engineering systems and lasting content quality. These are genuinely open roles, rather than a resume pool or a general invitation to collaborate.
These roles contribute to FermatMind's long-term infrastructure, from psychometrics and norm data to brand visual systems, the Laravel 12 backend platform, Next.js frontend, Release Train publishing process and engineering SOPs. We seek people comfortable with considerable uncertainty who can break problems into work that can be validated, reviewed and continuously improved.
1. Psychometrics Data Engineer
English title: Psychometrics Data Engineer Salary range: 15K-25K RMB per month before tax, with statutory social insurance and housing provident fund under the applicable employment arrangement Work arrangement: Full-time, remote supported, based in Shanghai Status: Open on an ongoing basis; updated periodically according to team needs
Who this suits
This role suits people with formal research experience in psychometrics, personality assessment, career interests, career development, organizational psychology, educational measurement, cognitive assessment, applied statistics or quantitative psychology.
We particularly value whether you have published papers in a relevant field. Publication of papers in a relevant field is required; verifiable formal research outputs may supplement, but cannot replace, the paper requirement. Supplementary materials may include journal or conference papers, preprints, empirical research in a thesis, or formal project outputs clearly explaining methods, data, models and boundaries of conclusions.
Responsibilities
- Turn career personality tests, psychometric papers, and personality and career interest models into executable data structures, item structures and model calibration processes.
- Help establish more robust norm calibration, dimensional interpretation and result boundaries across the Big Five, MBTI, Enneagram, IQ, EQ and Holland / RIASEC assessments.
- With compliant AI tools provided by the team, turn methods from established psychometric papers into reusable research notes, prompt workflows, calibration processes and product logic.
- Contribute to mapping among norm databases, vector structures, career labels, personality labels, item dimensions and explanatory text.
- Help identify overpromising, causal misinterpretation, clinical wording or overly strong career predictions in assessment interpretations.
Requirements
- Published papers in a relevant field are required. Verifiable formal research outputs may supplement, but cannot replace, this requirement.
- Familiarity with psychometrics, scale development, personality assessment, career interests or related quantitative methods.
- Understanding of reliability, validity, factor analysis, norms, item quality and model boundaries.
- Ability to read English papers and turn their methods, samples, limitations and applicable settings into workflows the team can execute.
- Ability to communicate with product, engineering and content teams and take academic concepts beyond the language of papers.
Helpful experience
- Familiarity with Item Response Theory (IRT), Classical Test Theory (CTT), Differential Item Functioning (DIF) or similar measurement methods.
- Projects involving career or personality assessment, educational measurement, organizational psychology or career development.
- Experience with Python, R, SQL or data analysis tools.
- Familiarity with AI-assisted research and the ability to assess model output boundaries, hallucinations and verifiability.
What this role is not
- It is not a role for clinical diagnosis, psychological counseling, treatment advice or medical judgments.
- It is not a content role that packages psychological terminology as entertainment labels.
- It is not limited to explanatory copy without participation in structured data and model boundary discussions.
- It does not ask AI to replace research judgment. AI tools only assist organization, checking and workflow acceleration.
Suggested application materials
Send your resume, links to papers or formal research outputs, and an explanation of your research interests. You may also include cases involving scale research, data analysis, item design, norm calibration, career assessment or model interpretation.
2. Visual & Brand UI Designer
English title: Visual & Brand UI Designer Salary range: 10K-20K RMB per month before tax, with statutory social insurance and housing provident fund under the applicable employment arrangement Work arrangement: Remote supported Time commitment: 3-5 days per week Status: Open on an ongoing basis; updated periodically according to team needs
Who this suits
This role suits people who understand brand systems, website UI, content visuals and social media communication together. FermatMind is not an entertainment test site. Its visual system should feel clear, trustworthy, youthful, restrained and technical, rather than rely on exaggerated decoration to create stimulation.
You should build a consistent design language across brand positioning, page structures, result page visuals, short-video covers and social media visuals.
Responsibilities
- Lead FermatMind's brand UI positioning and visual system upgrades.
- Design UI for homepage, assessment, result, career, article, Topic and Trust pages, and operational landing pages.
- Develop visual approaches for assessment results, personality dimensions, career interests and data explanations.
- Create Bilibili short-video covers, WeChat Official Account visuals, social media covers and content visual templates.
- Work with engineering to turn design standards into interface structures and component rules reusable over the long term.
- With compliant AI tools provided by the team, collaborate on design research, visual exploration, cover concepts and content production.
Requirements
- A portfolio of website UI, brand visuals, product interfaces or content visuals.
- Understanding of information hierarchy, layout rhythm, page conversion paths and adaptation across devices.
- Ability to develop a consistent visual style around industrial minimalism, geometric lines, data point grids, clear information hierarchy and restrained technical expression.
- Ability to design new media materials, including short-video covers, WeChat Official Account article visuals and social media covers.
- Ability to work with frontend engineering and understand basic components, page states and responsive design constraints.
Helpful experience
- Familiarity with Figma, Adobe tools, AI-assisted design or motion and video-cover workflows.
- Understanding of Tailwind CSS, Next.js page structures or design-to-frontend delivery.
- Design experience with data, knowledge, SaaS, education, career or assessment products.
- A consistent design system method, rather than relying solely on the visual impact of individual images.
What this role is not
- It is not a role centered on cute 3D imagery, cartoons for young children, heavy hand-drawn illustration or excessively entertaining presentation.
- It is not limited to posters without involvement in website experience and product structure.
- It does not pursue appearance alone while overlooking user understanding, information hierarchy and long-term brand consistency.
- It is not a role for arbitrary template reuse.
Suggested application materials
Send your resume and portfolio. Include examples involving website UI, brand systems, mobile pages, short-video covers, social media visuals, data visualization or content presentation where possible. Explain your responsibilities and design tradeoffs in each case.
3. Technical Partner & CTO
English title: Technical Partner & CTO Salary range: 30K-50K RMB per month before tax, with statutory social insurance and housing provident fund under the applicable employment arrangement Work arrangement: Full-time preferred; a part-time transition of up to 6 months is accepted, with at least 3 working days per week during the transition Status: Open on an ongoing basis; updated periodically according to team needs
Partnership arrangements
This is not ordinary outsourced development or consulting on isolated requirements. We seek someone who can take long-term responsibility for technical systems, engineering discipline and the pace of iteration.
Competitive full-time or part-time pay can be discussed. Early-stage options or partnership arrangements may be separately confirmed after thorough mutual evaluation and are subject to formal written agreements. This recruitment notice makes no automatic commitment to partnerships, options or long-term incentives.
Who this suits
This role suits someone who shares FermatMind's values and wants to organize an already operating, continuously evolving project spanning assessments, content, careers, commercial flows, SEO, release processes and data systems into an engineering system maintainable over the long term.
We seek the technical leadership capabilities needed by a long-running assessment platform: reviewing code, improving performance and controlling risks, while establishing SOPs, standardizing releases, managing technical debt and supporting team collaboration.
Responsibilities
- Strengthen the Laravel 12 backend platform, including APIs, data structures, caches, queues, permissions, releases and runtime boundaries.
- Address static fallback, SSR/ISR, metadata, canonical, noindex, caching and runtime stability issues in the Next.js frontend.
- Take over and continuously improve the Stage 3 Release Train, refining readiness, CI, deployment, smoke, rollback and sidecar issue mechanisms.
- Establish iteration SOPs defining task breakdown, PR review, testing, release and rollback standards, and online verification processes.
- Manage testing, CI/CD, deployment, observability, performance, security, code quality and technical debt.
- Identify hardcoding, hidden fallbacks, fragile scripts, unobserved failure paths and accumulated architectural risks.
- Work with the founder and content, research and design teams to make product iteration repeatable, traceable and auditable.
Requirements
- Practical architecture experience with Laravel / PHP backend platforms or similarly complex business systems.
- Next.js / React frontend engineering experience and understanding of relationships among SSR, ISR, static fallbacks, metadata, SEO and runtime.
- Familiarity with CI/CD, GitHub Actions, automated deployment, queues, caches, logs, monitoring and diagnosing production issues.
- Ability to establish SOPs, rather than rely only on personal experience for emergency fixes.
- Risk awareness around privacy, commercial flows, result pages, report pages, search exposure, SEO/GEO and content publication.
- Strong alignment with FermatMind's direction of using science, data and structured tools to help young people understand themselves and explore careers.
Helpful experience
- Technical leadership of long-running content, assessment, SaaS, education or data platforms.
- Experience with decoupled Laravel + Next.js architecture.
- Experience with Release Trains, blue/green deployment, rollback, smoke testing or release governance across environments.
- Experience with security audits, performance management, observability, automated testing and architecture documentation.
- Ability to work with AI coding tools without relying on AI to replace engineering judgment.
What this role is not
- It is not an ordinary outsourced development role.
- It is not limited to fixing a few bugs without responsibility for long-term architectural outcomes.
- It does not permit arbitrary hardcoding, skipped tests or bypassing release processes.
- It does not immediately and automatically grant equity or partner status. Long-term incentives require thorough mutual evaluation and formal written agreements.
Suggested application materials
Send your resume, GitHub profile or code repository, architecture cases, technical debt management cases, or descriptions of deployment, CI/CD, monitoring, performance, security and code quality work you led.
How to apply
Send your application materials to:
fuwei8868@outlook.com
There is no fixed email subject format, but we suggest including the role, your name or preferred name, and keywords for the project you most want to show. Provide specific project examples in the email, rather than only a general introduction.
Privacy
All resumes and application materials are used only for this round of team selection. FermatMind will not connect them to an automated ATS system, sell them, make them public or share them with unrelated third parties.
At initial contact, do not submit identity card numbers, bank card numbers, full addresses, health information or other sensitive personal information unrelated to the role.
Fair review
FermatMind prioritizes role-related skills, work, research outputs, project experience, communication quality and willingness to commit. For students, recent graduates or candidates from nontraditional backgrounds with strong AI tool skills, project execution or high-quality work, research or code samples, we will assess collaboration arrangements and benefits according to the specific circumstances.
