# Product Discovery & Prototyping Engineer - Company: [Braiins]() - Location: Braiins - Remote: Yes - Team: Braiins Core - Employment type: Full Time - Posted: July 13, 2026 ## Job description ### **✨ What awaits you here:** As a **Product Discovery & Prototyping Engineer**, you will help us quickly **explore**, **validate**, and **shape new product ideas** across **Braiins Pool**, **Hashpower**, and related products. You will work as a close partner to the product owner, turning business ideas, user problems, requirements, and early designs into clear specifications, experiments, clickable or functional prototypes, and validated product proposals. This role combines **analytical thinking**, **product discovery**, **data analysis**, **requirements definition**, **communication with design and engineering teams, and AI-assisted prototyping**. You do not need to be a full-time production developer from day one, but you should be comfortable learning technical tools, using AI responsibly, and building lightweight prototypes that help us decide what is worth building properly. ### **🤝 Key Responsibilities:** * Work closely with the product owner to explore, structure, and validate new product and feature ideas. * Translate business goals, customer problems, and stakeholder input into functional and non-functional requirements. * Create product discovery materials such as problem statements, user stories, acceptance criteria, flows, edge cases, validation plans, and decision records. * Use AI-assisted development and prototyping tools to create quick experiments, mockups, clickable prototypes, scripts, dashboards, or lightweight functional prototypes. * Cooperate with design, backend, frontend, QA, support, and data-oriented stakeholders to clarify feasibility, user value, expected impact, and operational consequences. * Help verify product viability before full engineering investment: user value, complexity, dependencies, supportability, risks, and measurable success criteria. * Query and interpret data from telemetry databases to help to validate ideas. * Document findings clearly so engineering teams can continue from validated discovery into implementation. * Actively improve our discovery and prototyping process, including reusable templates, AI-assisted workflows, and feedback loops. * Use AI tools responsibly to accelerate research, implementation, testing, documentation, automation, and delivery while keeping strong human ownership, review, security, and production quality ### **🔎 We are looking for someone with:** * Mid/Senior experience in product analysis, business & data analysis, product ownership, requirements engineering, technical analysis. * Strong analytical thinking and ability to structure ambiguous ideas into clear problems, requirements, assumptions, and next steps. * Experience defining functional and non-functional requirements, acceptance criteria, user flows, edge cases, and product validation approaches. * Ability to communicate with product, design, engineering, QA, support, and business stakeholders. * Ability to query SQL-like queries and interpret data. * Comfort working with technical products where product decisions must consider data flows, operational behavior, constraints, and customer workflows. * Interest in learning AI-assisted prototyping, lightweight coding, scripting, or no-code/low-code tools if you do not already use them. * Strong ownership, curiosity, and ability to move quickly without losing clarity or discipline. * Willingness to understand Bitcoin mining, pool operations, hashpower products, and customer workflows. ### **💪 Nice to have:** * Previous experience with product discovery, technical product management, UX collaboration, or early-stage feature validation. * Experience creating prototypes, internal tools, scripts, dashboards, clickable mockups, or AI-assisted proofs of concept. * Experience with SQL, APIs, data analysis, Figma, Git, Python, TypeScript, or similar tools. * Experience with Bitcoin, cryptocurrencies, mining, fintech, trading, infrastructure, or B2B technical products. * Ability to connect qualitative user feedback with quantitative signals and product metrics. ### **🏖 What we offer to you:** * Full-time position with flexible working hours. * Both possibilities to work as an Employee or Freelance. * Indefinite agreement. * For employees 5 weeks of vacation and 3 sick days. * Company events, and occasional brunches in the office. * Relaxing room, a shower, and a shared parking spot. * Modern offices in the center of Prague, Czech Republic — the heart of Europe. ### **🔥 We will love you even more if…** * You can move from vague idea to clear prototype or requirement quickly. * You enjoy connecting product thinking with technical feasibility. * You have used AI tools for analysis, prototyping, requirements, or coding assistance. * You are interested in Bitcoin, mining, or technical products with real operational users. ## Apply [Apply on Braiins]() Canonical job page: