SENIOR FULL-STACK MOBILE/WEB DEVELOPER

URGENT HIRING: SENIOR FULL-STACK MOBILE/WEB DEVELOPER
Company: HiroLabz
Role: Senior Full-Stack Mobile/Web Developer
Work Setup: Full-Time Remote
Employment Type: Independent Contractor
Hours: 40 hours per week
Schedule: Flexible, with required availability during designated team collaboration hours
Location: Open to qualified candidates worldwide
Company Headquarters: Austin, Texas, USA
Start Date: Immediate / As Soon As Possible
Experience: 6–10 years preferred
ABOUT HIROLABZ
HiroLabz is a U.S.-headquartered global technology company based in Austin, Texas, building next-generation technology products for international markets.
We operate with a distributed global team and build products designed for users, businesses, and organizations worldwide, including markets across the United States, Canada, United Kingdom, Europe, Australia, New Zealand, Singapore, Japan, South Korea, Southeast Asia, the Middle East, and beyond.
Our work spans multiple areas of technology, including:
• Artificial Intelligence and intelligent agents
• Web and mobile applications
• AI and LLM integrations
• Voice AI and communication technologies
• SaaS platforms and digital products
• Business and workflow automation
• APIs and third-party integrations
• Cloud infrastructure and DevOps
• Scalable backend systems
• Emerging and experimental technologies
Our vision goes beyond any single country or region.
We are building technology for a global audience and growing an international team capable of creating products that can operate, compete, and scale worldwide.
As HiroLabz continues to grow, we are looking for experienced developers who want to help us build technology for customers and users across North America, Europe, Asia-Pacific, the Middle East, and other global markets.
WHO WE'RE LOOKING FOR
We are hiring a Senior Full-Stack Mobile/Web Developer with preferably 6–10 years of professional software development experience.
Applicants must have strong hands-on professional experience building both web and mobile applications.
Please do not apply if your professional experience is exclusively web development or exclusively mobile development.
We are looking for someone who can:
• Work independently and take ownership of projects
• Solve complex technical problems
• Build reliable, production-ready applications
• Communicate effectively with a distributed international team
• Thrive in a fast-moving technology environment
• Contribute technical ideas, solutions, and recommendations
• Take features and products from concept through development, testing, deployment, and improvement
TECH STACK
Relevant experience should include several of the following:
• React
• React Native
• Expo
• Node.js
• Python
• REST APIs
• Third-party API integrations
• SQL and/or NoSQL databases
• Authentication and authorization systems
• Payment integrations
• Cloud platforms
• CI/CD workflows
• AI and LLM integrations
RESPONSIBILITIES
You will be responsible for:
• Building and maintaining web and mobile application features
• Developing frontend applications using React, React Native, and Expo
• Building backend services and APIs for web and mobile applications
• Designing and implementing scalable application architecture
• Integrating third-party platforms and services
• Integrating AI models, voice providers, payment systems, and communication APIs
• Implementing authentication, user management, subscriptions, payments, and application logic
• Debugging issues across frontend, backend, mobile, APIs, infrastructure, and deployments
• Improving application performance, reliability, security, and scalability
• Writing clean, maintainable, and well-documented code
• Participating in code reviews and technical discussions
• Clearly communicating progress, blockers, technical risks, and recommendations
• Taking ownership of assigned projects from development through production deployment
• Collaborating with developers, designers, researchers, product teams, and other members of our global team
NICE TO HAVE
The following are strong advantages:
• Experience integrating AI/LLM platforms such as OpenAI, Claude, Grok, Gemini, or similar technologies
• Experience building AI agents or agentic workflows
• Experience with voice AI, speech-to-text, transcription, call summaries, or ElevenLabs
• Experience building SaaS platforms and subscription-based products
• Experience with usage-based billing or dynamic pricing systems
• Experience with Stripe or other payment platforms
• Experience with Twilio or other communication APIs
• Experience with UI/UX improvements, frontend animations, and polished user experiences
• DevOps, cloud infrastructure, deployment, and CI/CD experience
• Experience designing scalable, production-grade systems
• Experience taking products from early-stage development to production
• Experience working with distributed or international teams
• Own MacBook or reliable access to a MacBook for iOS development and testing
APPLICATION REQUIREMENTS
Your application must include:
Short introduction
Summary of your web development experience
Summary of your mobile development experience
Total years of professional software development experience
Current employment status
Expected monthly compensation or contractor rate in USD
Current country and time zone
Earliest possible start date
Updated CV or resume
Portfolio, GitHub, App Store/Google Play links, or examples of products you have worked on, if available
Application Subject:
Senior Full-Stack Developer – [Your Full Name] – [Country]
IMPORTANT
This is a full-time role requiring 40 hours per week.
We are looking for someone who can fully commit to HiroLabz and start immediately or as soon as possible.
This is a fully remote opportunity open to qualified professionals worldwide.
HiroLabz is a U.S.-headquartered global technology company building products for international markets and bringing together talent across different countries, cultures, and time zones.
If you are looking to help build ambitious technology products with global potential, we would like to hear from you.
Applications that do not include the requested information may not be reviewed.