FusionLoop is a Latvia-registered company building a Web3 Mining-as-a-Service (MaaS) platform that gives users tokenized access to real Bitcoin mining infrastructure (ASIC hardware, electricity, data centers, maintenance). Mining capacity is represented via NFTs backed by physical assets, with transparent yield tracking and a user dashboard. We’re an early-stage, product-focused team working remotely with CET/EET overlap, building the client app in TypeScript + React (HeroUI, Tailwind, Vite) against REST/OpenAPI APIs.
Company details:
Name: Optiline Lat, SIA
Registration number: 40103580140
Address: Rīga, Hipokrāta iela 45 - 49, LV-1079
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· 262 views · 117 applications · 22d
Middle Frontend Engineer to $5000
Full Remote · Worldwide · Product · 5 years of experience · English - B2About project We’re building a Web3 Mining-as-a-Service (MaaS) platform enabling users to participate in Bitcoin mining using real infrastructure, including electricity, mining hardware, data centers and maintenance services. Mining capacity is tokenized...About project
We’re building a Web3 Mining-as-a-Service (MaaS) platform enabling users to participate in Bitcoin mining using real infrastructure, including electricity, mining hardware, data centers and maintenance services.
Mining capacity is tokenized via NFTs backed by physical mining assets, providing transparent ownership and yield tracking. A utility token is used for platform fees, governance, and access to advanced mining optimization features.
The product is early-stage with technical requirements being finalized, UI/UX designs are prepared in Figma, no large legacy frontend yet.
Tech stack for the client interface: TypeScript + React, HeroUI, Tailwind CSS, REST APIs (OpenAPI), Vite.
Responsibilities
- Implement performant, modular, and responsive user interfaces from Figma designs using HeroUI, React, and TypeScript
- Build reusable, well-structured UI components
- Build the entire frontend application from the ground to production
- Set up and follow frontend best practices (structure, patterns, consistency)
- Work in 1-2 week agile sprints with planning and reviews
- Collaborate closely with designers and developers to clarify requirements and edge cases
- Handle partially defined requirements and propose well-reasoned frontend solutions
Qualifications
- Strong TypeScript and modern JavaScript (ES6+)
- 2-4 years of solid React development experience with modern hooks and patterns
- Experience with React Ecosystem best practices and tools: state management, routing, data fetching, forms and validation
- Solid understanding of UI/UX principles, responsive and adaptive design principles
- Good knowledge of HTML and CSS
- Experience with HeroUI, Tailwind CSS, or ability to learn it fast
- Experience implementing designs from Figma
- Understanding of RESTful APIs, OpenAPI spec, and frontend development workflows
- Basic unit/integration testing experience, familiarity with testing frameworks and methodologies
Nice to Have
- Experience with Web3 technologies, blockchain ecosystem
- Backend development experience, creating BFF apps
Work format
- Fully remote
- At least 4 hours of daily overlap with the team (roughly 10am-2pm CET range, meetings usually around 11:00 CET)
- Team coordination in CET / Eastern European time
- Working language: English. Russian may be used inside the team
Compensation & Benefits
- Salary: 25 - 30 EUR/hour
- Payment: Monthly via bank transfer or USDT
- Vacation: 20 days paid time off per year
- Contract type: B2B contractor
Benefits:
- Flexible work schedule
- Agile development with fast feedback and minimal bureaucracy
- Work in a small, focused team with end-to-end ownership of features
- Hands-on experience with Web3 and blockchain in a real crypto-finance product
- Opportunity to influence architecture, UX, and technical decisions
- Exposure to multiple project areas, accelerating skill growth and full-stack awareness
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· 272 views · 116 applications · 8d
Product UI/UX Designer (Web App, Dashboard) to $5000
Full Remote · Worldwide · Product · 5 years of experience · English - B2Position: Product UI/UX Designer (Web App Dashboard) Location: Remote (EU timezone preferred) Employment: Contract (part-time or full-time) → potential long-term / in-house Start: ASAP English: B1–B2+ (able to work with product requirements + dev team) ...Position: Product UI/UX Designer (Web App Dashboard)
Location: Remote (EU timezone preferred)
Employment: Contract (part-time or full-time) → potential long-term / in-house
Start: ASAP
English: B1–B2+ (able to work with product requirements + dev team)
About the project
We’re building a Web3 Mining-as-a-Service (MaaS) platform. Users access real Bitcoin mining infrastructure and track daily rewards, performance, and upgrades inside a dashboard (trustworthy, fintech-grade UX).
Important: the frontend uses a ready-made UI component library (HeroUI) + Tailwind-style layout. The goal is fast, dev-friendly product design using existing components (not reinventing UI kits).
Responsibilities
Design the core dashboard and key flows:
- onboarding / verification-aware flows (CIAM/KYC-style steps where applicable)
- portfolio / assets / rewards tracking
- add-capacity / upgrade flows, calculators, notifications surfaces
- Build Figma layouts mapped to HeroUI components (consistent, clean, scalable)
Prepare dev-ready handoff:
- responsive behaviour (mobile-first + responsive desktop adaptation)
- clear component mapping + specs for React implementation
- Work in a tight feedback loop with Founder + CTO + Architect + Frontend:
- fast iterations, quick fixes, frequent feedback
- tight loops with the team
Requirements (must-have)
- 3+ years in product UI/UX for web apps (dashboards, SaaS, fintech, analytics)
- Strong UX for data-heavy / money-trust products (clarity, credibility, friction control)
- Confident Figma skills: auto-layout, constraints, components/variants, clean structure
- Ability to iterate quickly: same-day / next-day corrections when needed
- Comfortable collaborating directly with devs
Nice to have
- Web3 / crypto product experience (wallet-like flows, rewards/staking UX, exchanges)
- Understanding of Tailwind / utility-first layout constraints
- Experience working with existing UI libraries (HeroUI, shadcn/ui, Material, etc.)
- Tasteful micro-interactions / motion (optional)
Process
- Short intro call
- Portfolio review (must include complex web apps / dashboards)
- Optional small test task (scoped, realistic, fast)
Work format
- Fully remote
- At least 4 hours of daily overlap with the team (roughly 10am–2pm CET, meetings usually around 11:00 CET)
- Team coordination in CET / Eastern European time
- Working language: English (Russian may be used inside the team)
Compensation & Benefits
- Rate: 20–30 EUR/hour (depending on portfolio and speed/ownership)
- Payment: Monthly via bank transfer or USDT
- Vacation: 20 days paid time off per year
- Contract type: B2B contractor
Benefits:
- Flexible work schedule
- Agile execution with fast feedback and minimal bureaucracy
- Small, focused team with end-to-end ownership
- Hands-on experience in a real crypto-finance product (not “theory Web3”)
- Ability to influence UX, interface patterns, and product decisions
- Exposure to multiple product areas (dashboard, onboarding, growth mechanics)
How to apply
Send:
- Portfolio link (with 1–2 relevant dashboards/web apps)
- Short note: what you personally owned end-to-end (flows/system/handoff)
- Availability (hours/week) + rate
- Your typical turnaround time for feedback iterations