Senior UI Engineer (360)
Status
Florianópolis, Brazil
Full time
Remote
Compensation is not specified
Role
Frontend Engineer
Description
Are you looking to advance your international career?
Join a supportive team at Ubiminds, a people-first company dedicated to collaborating with American software product companies to expand their development capabilities by sourcing the top 5% talent from Brazil. They offer a unique blend of staff augmentation and employer-of-record services for their LATAM strategy.
Ubiminds is aiding a company revolutionizing talent acquisition for organizations worldwide through an end-to-end hiring platform. This platform enables seamless connections between companies and candidates with features like video interviews, assessments, and AI-driven conversations. By leveraging science-backed hiring solutions powered by ethical AI, they have facilitated millions of video interviews and chat-based interactions for innovative clients globally.
Don't miss this exceptional opportunity to propel your international career and contribute to an innovative company.
Challenge
We are seeking a skilled Senior UI Engineer to join our team and contribute to shaping our software's design and delivery. In this role, you will collaborate with Technical Architects and UX Designers to create reusable UI components, establish top practices, and enhance the frontend architecture to deliver high-quality user experiences. Your responsibilities will involve directly impacting multiple teams, as you enhance the consistency and efficiency of our UI development.
Responsibilities
- Define and implement standard UI patterns and reusable components for increased consistency across engineering teams.
- Collaborate with UX Designers to refine requirements and ensure balance between feasibility and usability.
- Develop accessible and maintainable React components following best practices.
- Produce clean, secure, and efficient code for maximum scalability and maintainability.
- Create unit tests and contribute to automated testing strategies.
- Conduct code reviews, provide feedback, and mentor colleagues to promote continuous improvement.
- Troubleshoot and resolve complex UI issues to maintain a seamless user experience.
- Document patterns, solutions, and best practices via technical writing and discussions.
- Make informed technical decisions by considering trade-offs between performance, maintainability, and business impact.
- Work closely with Product and UX teams to craft engaging web experiences.
Requirements
Mandatory Skills
- Advanced/fluent English skills - Excellent written and verbal communication abilities.
- Degree in Computer Science, a related technical field, or equivalent work experience.
- Proven experience in building SaaS products in a cloud-based environment, particularly with AWS and cloud best practices.
- Proficiency in React, TypeScript, .NET, and Node.js, along with a deep understanding of modern web technologies.
- Strong grasp of RESTful APIs, GraphQL, MVC patterns, and secure web application development.
- Expertise in producing maintainable code, unit testing, and automated testing strategies (Jest, @testing-library/react), as well as familiarity with Docker, Nginx, CI/CD pipelines, and virtualization technologies.
- Understanding of security best practices and capabilities in developing scalable, high-performance web applications.
- Effective collaboration skills in a global, remote-first setting.
Nice to Have
- Familiarity with GraphQL for efficient data retrieval and WebRTC for real-time communication.
- Experience with Nginx for load balancing, caching, and optimizing web application performance.
- Hands-on experience with CI/CD pipelines and advanced frontend testing frameworks for robust and automated deployments.
- Ability to work with backend services and APIs to enhance UI features and ensure seamless user experiences.
Perks and Benefits
At Ubiminds as a Senior UI Engineer:
- Work in a product-based company with full benefits akin to full-time employees.
- Receive comprehensive back-office support including career guidance, HR, and concierge services.
- Embrace a remote-first policy with opportunities for growth within a distributed team.
- Use a provided MacBook for work purposes.
- Access potential growth opportunities through engaging with other tech professionals through tech talks, chapter meetings, and remote social events.
- Enhance English communication skills with free lessons from a native English speaker.
- Take advantage of candidate referral bonuses and cool office amenities if desired.
Recruitment Process
- Interview with Tech Recruiter (to discuss the job opening)
- Client process (involving technical assessments and challenges)
- Job Offer
Skills Required
Ubiminds
Website
Not specified
Company size
Not specified
Location
United States
Description
Not specified
Status
Lester Ramírez
I am looking for an Android developer to work on a project using Firebase Studio with Dart.
Part time
Remote
I am looking for an Android developer to work on a project using Firebase Studio with Dart. Currently, payment will be based on small task packages worth $5 in ETH each, with opportunities for higher wages as the company grows and generates more revenue.
Contact me on Telegram: t.me/LesterRF
Contact me on Telegram: t.me/LesterRF
Payment in Crypto
Ian Fox
Need SEO expert to get us to Google first page rank
Full time
Remote
I need an SEO expertteam who is capable of getting our shops to Google first page rank on our desired keywords
Payment in Crypto
Quinn Bosnie
Have you built token launch platforms or bonding curves on Solana before?
Amsterdam, Netherlands
Amsterdam, Netherlands
Full time
Remote
Hey, I’m launching a project a secure, user-friendly memecoin launchpad on Solana that fixes the problems with platforms like Pump.fun (rug pulls, no LP locks, devs dumping). I’m looking for a Solana smart contract dev (or full-stack) to help me build an MVP. This includes:• Token creation with a dev wallet cap (max 5%)• Bonding curve or simple fair launch system• Auto liquidity lock for 3 months• Optional blue badge verification (paid upgrade)• Raydium listing or integration I’d love to know if you’ve worked on similar Solana or DeFi projects. If you’re interested, I can send a quick brief + we can chat timelines and budget. Let me know — I’m ready to move fast if you’re a good fit
Market Maker
Technical Cofounder – Mobile App Lead (Equity Role)
Full time
Hybrid
Looking for a Tech Cofounder (Mobile App Developer)
Equity + Leadership Role | Remote | Africa-focused
We’re building something bold — a platform designed to empower everyday people through real-world commerce and daily utility. The concept is built, the community is growing, and the brand is already in motion. Now, we’re ready to build the MVP.
We’re looking for a technical cofounder — someone with the skill to build and the vision to lead.
What You’ll Own:
• Lead the mobile app development (Android-first; iOS optional for now)
• Build core features: user registration, listings, wallet logic, escrow integration, and payments
• Collaborate on product direction and tech decisions
• Scale with the company as a core part of the founding team
Ideal Experience:
• You’ve built marketplace-style or P2P mobile apps before
• You’re comfortable with payment APIs like Paystack, Flutterwave, or others
• You understand how to work with wallets, escrow flows, and multi-user platforms
• You’re not just a builder — you want to grow with a brand and own a meaningful slice of it
Your Role Is Not Freelance.
This is a cofounder opportunity — you’ll help shape the product, tech stack, and long-term vision. You’ll receive equity and work closely with the founding team to build a scalable African-first product.
Equity + Leadership Role | Remote | Africa-focused
We’re building something bold — a platform designed to empower everyday people through real-world commerce and daily utility. The concept is built, the community is growing, and the brand is already in motion. Now, we’re ready to build the MVP.
We’re looking for a technical cofounder — someone with the skill to build and the vision to lead.
What You’ll Own:
• Lead the mobile app development (Android-first; iOS optional for now)
• Build core features: user registration, listings, wallet logic, escrow integration, and payments
• Collaborate on product direction and tech decisions
• Scale with the company as a core part of the founding team
Ideal Experience:
• You’ve built marketplace-style or P2P mobile apps before
• You’re comfortable with payment APIs like Paystack, Flutterwave, or others
• You understand how to work with wallets, escrow flows, and multi-user platforms
• You’re not just a builder — you want to grow with a brand and own a meaningful slice of it
Your Role Is Not Freelance.
This is a cofounder opportunity — you’ll help shape the product, tech stack, and long-term vision. You’ll receive equity and work closely with the founding team to build a scalable African-first product.
Iron Key Capital
Venture Fellow (Part-Time, Remote)
Part time
Remote
About Iron Key Capital:
Iron Key Capital is an investment firm specializing in liquid and venture opportunities in the crypto space. We invest in pre-seed and seed-stage Web3 startups focused on enterprise adoption of utility-driven digital assets. Additionally, we operate a blockchain innovation lab and incubate startups within the Web3 infrastructure sector. Backed by 200+ LPs globally, Iron Key deploys over $1M annually.
Role Overview:
The Venture Fellow program is an 8-week, part-time, remote opportunity designed for individuals eager to develop their skills in venture capital and angel investing. Fellows will gain hands-on experience in early-stage investing, including deal sourcing, due diligence, and pitching investment opportunities.
This program is ideal for aspiring investors, founders, or professionals exploring a career shift into venture capital. Fellows will work closely with seasoned venture capitalists and gain access to Iron Key’s investor community to learn best practices in the field.
Key Responsibilities:
Identify and evaluate early-stage investment opportunities in the Web3 ecosystem.
Conduct market research and due diligence on potential investments.
Collaborate with the Iron Key team on deal sourcing and portfolio management.
Engage with investors and team members to develop investment strategies.
Contribute to thought leadership on topics related to venture capital and Web3 innovation.
Qualifications:
Strong analytical and problem-solving skills to evaluate investment opportunities.
Excellent communication and interpersonal skills for engaging with team members and stakeholders.
Experience in Web3, AI, or related technologies is preferred.
Involvement in startups, entrepreneurial ecosystems, or Web3 communities is a plus.
Aspiring to transition into venture capital or professionalize angel investing skills.
Bonus: Previous experience as a founder or working within early-stage startups.
Program Details:
Duration: 8 weeks (part-time)
Location: Remote
Compensation: Competitive, based on experience
How to Apply:
Submit your application through this link:
https://airtable.com/appfCDlkorF5FL3VZ/pagnjuRX1A7gZjBGc/form
Additional Information:
This program is designed to take the guesswork out of breaking into venture capital or professionalizing angel investing. Successful Fellows may have opportunities to advance into Venture Partner or Core Contributor roles at Iron Key.
Iron Key Capital is an investment firm specializing in liquid and venture opportunities in the crypto space. We invest in pre-seed and seed-stage Web3 startups focused on enterprise adoption of utility-driven digital assets. Additionally, we operate a blockchain innovation lab and incubate startups within the Web3 infrastructure sector. Backed by 200+ LPs globally, Iron Key deploys over $1M annually.
Role Overview:
The Venture Fellow program is an 8-week, part-time, remote opportunity designed for individuals eager to develop their skills in venture capital and angel investing. Fellows will gain hands-on experience in early-stage investing, including deal sourcing, due diligence, and pitching investment opportunities.
This program is ideal for aspiring investors, founders, or professionals exploring a career shift into venture capital. Fellows will work closely with seasoned venture capitalists and gain access to Iron Key’s investor community to learn best practices in the field.
Key Responsibilities:
Identify and evaluate early-stage investment opportunities in the Web3 ecosystem.
Conduct market research and due diligence on potential investments.
Collaborate with the Iron Key team on deal sourcing and portfolio management.
Engage with investors and team members to develop investment strategies.
Contribute to thought leadership on topics related to venture capital and Web3 innovation.
Qualifications:
Strong analytical and problem-solving skills to evaluate investment opportunities.
Excellent communication and interpersonal skills for engaging with team members and stakeholders.
Experience in Web3, AI, or related technologies is preferred.
Involvement in startups, entrepreneurial ecosystems, or Web3 communities is a plus.
Aspiring to transition into venture capital or professionalize angel investing skills.
Bonus: Previous experience as a founder or working within early-stage startups.
Program Details:
Duration: 8 weeks (part-time)
Location: Remote
Compensation: Competitive, based on experience
How to Apply:
Submit your application through this link:
https://airtable.com/appfCDlkorF5FL3VZ/pagnjuRX1A7gZjBGc/form
Additional Information:
This program is designed to take the guesswork out of breaking into venture capital or professionalizing angel investing. Successful Fellows may have opportunities to advance into Venture Partner or Core Contributor roles at Iron Key.