Senior Real-Time AI Developer – Intelligent Virtual Receptionist System Powered by OpenAI (ChatGPT) | Contract-to-Hire Opportunity

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Join arenaflex and Build the Future of AI-Powered Customer Communication

Are you passionate about pushing the boundaries of artificial intelligence and voice technology? Do you dream of creating intelligent systems that transform how businesses handle customer interactions? Welcome to arenaflex, where we're on a mission to revolutionize customer service through cutting-edge AI solutions.

We are currently seeking an experienced and motivated Real-Time AI Developer to lead the development of our groundbreaking virtual receptionist system. This is a unique opportunity to be part of a forward-thinking team at arenaflex, building an intelligent phone assistant that will redefine how small and medium-sized enterprises interact with their customers.

About the Role

As a Real-Time AI Developer at arenaflex, you will be responsible for designing, developing, and deploying an advanced virtual receptionist capable of answering phone calls in real time with human-like conversational abilities. Our system, powered entirely by OpenAI's ChatGPT API, will serve as an intelligent first point of contact for businesses across North America, handling inquiries with remarkable fluency and contextual understanding.

This position begins as a contract engagement with the strong potential to transition into a permanent full-time role based on performance and project success. You'll be working at the intersection of artificial intelligence, voice technology, and telecommunications—creating solutions that businesses will rely on daily.

What You'll Build

Our virtual receptionist system represents the next generation of automated customer service. As the lead developer, you will architect and implement a solution that combines multiple advanced technologies into a seamless, low-latency experience for end users.

Phase 1 – Core Foundation

The initial phase focuses on establishing the fundamental capabilities that make our virtual receptionist truly intelligent:

• VoIP Call Reception: Build robust systems to receive and manage incoming calls via VoIP/SIP protocols, ensuring reliable connectivity and call handling


• OpenAI Integration: Connect seamlessly with the ChatGPT API (GPT-4o or GPT-5) to power natural, contextually-aware conversations that understand nuance and intent


• Real-Time Speech Processing: Implement speech-to-text (STT) and text-to-speech (TTS) systems that deliver near-instantaneous translation between voice and text


• Bilingual Intelligence: Develop automatic language detection and seamless switching between Québec French and Canadian English


• Management Interface: Create an intuitive web-based dashboard for configuring responses, managing conversation scripts, and monitoring system performance


• Comprehensive Logging: Implement detailed audio and text conversation logging for quality assurance and analytics


• Human Transfer Capability: Design smooth escalation paths to transfer calls to human operators when needed

Phase 2 – Enhanced Capabilities

Following the successful completion of Phase 1, you will have the opportunity to expand the system with advanced features:

• CRM integration for unified customer data management


• Automated appointment scheduling with Google Calendar and Outlook


• Intelligent SMS and email notification systems


• Caller recognition and authentication for returning customers


• Advanced analytics and reporting dashboards

What We're Looking For

Essential Qualifications

To succeed in this role at arenaflex, you must bring:

• Proven OpenAI API Experience: You have successfully integrated OpenAI's APIs into production applications and understand the nuances of working with large language models, including prompt engineering, token management, and API optimization


• VoIP/SIP Expertise: Deep knowledge of Voice over IP protocols, including SIP (Session Initiation Protocol), and experience with telephony integrations such as Twilio, Asterisk, or comparable platforms


• Real-Time Development Mastery: Demonstrated experience building low-latency applications that process audio streams in real time with minimal delay—speed and responsiveness are critical for natural conversations


• Multilingual Development Skills: Experience developing applications that handle multiple languages, particularly French and English, with an understanding of linguistic nuances and regional variations


• Strong Technical Foundation: Proficiency in Python or Node.js for backend development, with the ability to architect scalable, maintainable solutions

Preferred Technical Stack

While we value diverse backgrounds, familiarity with the following technologies will help you hit the ground running:

• Speech-to-Text: Whisper, Deepgram, Azure Speech Services


• Text-to-Speech: ElevenLabs, Azure TTS, or similar high-quality voice synthesis platforms


• VoIP Platforms: Twilio, Asterisk, FreePBX, or equivalent telephony solutions


• Frontend Development: React.js or Vue.js for building modern management interfaces


• Database Systems: PostgreSQL, MySQL, or MongoDB for storing configurations, logs, and customer data


• Cloud Infrastructure: Experience deploying and scaling applications on cloud platforms

Professional Attributes

Beyond technical skills, we value team members who demonstrate:

• Problem-Solving Mindset: Ability to troubleshoot complex issues in real-time systems and find innovative solutions under pressure


• Attention to Detail: Precision in handling voice data, API integrations, and user experience considerations


• Communication Skills: Ability to explain technical concepts clearly to non-technical stakeholders


• Time Management: Capacity to deliver quality work within estimated timelines (Phase 1 estimated at 4-8 weeks)


• Collaboration Spirit: Willingness to work closely with product managers, designers, and other developers

Why Join arenaflex?

Career Growth and Learning Opportunities

At arenaflex, we invest in your professional development. This role offers unparalleled exposure to cutting-edge AI technologies and real-time systems development. You'll work with industry-leading tools and platforms, expanding your expertise in:

• Large Language Model integration and optimization


• Real-time audio processing and streaming


• VoIP telecommunications architecture


• Multilingual AI system development


• Production-grade AI application deployment

As the lead developer on this project, you'll gain valuable experience bringing an AI product from concept to market, building your portfolio with work that demonstrates end-to-end system development capabilities.

Work Environment and Culture

arenaflex fosters a collaborative, innovation-driven environment where your ideas matter. We believe in empowering our team members to make decisions and take ownership of their work. Our culture emphasizes:

• Innovation First: We encourage creative problem-solving and exploring new approaches to challenges


• Work-Life Balance: Flexible working arrangements to support your productivity and well-being


• Continuous Learning: Access to training resources, conferences, and professional development opportunities


• Transparent Communication: Open dialogue across all levels of the organization


• Team Spirit: Collaborative spirit where everyone supports each other's success

Compensation and Benefits

We offer competitive compensation reflective of your experience and skills:

• Contract Phase: Attractive hourly rate or project-based compensation during initial contract period


• Contract-to-Hire: Clear pathway to permanent employment with full benefits package


• Comprehensive Benefits: Health, dental, and vision coverage


• Professional Growth: Continuous learning opportunities and career advancement paths


• Modern Tools: Access to the latest development tools, hardware, and technologies

The Impact You'll Make

By joining arenaflex as our Real-Time AI Developer, you're not just taking a job—you're shaping the future of business communication. Your work will enable small businesses and freelancers to provide professional, 24/7 customer service without the overhead of traditional reception staff. You'll help companies never miss an important call again, while delivering personalized, intelligent interactions that leave customers impressed.

This is your chance to be at the forefront of the AI revolution in customer service, working with transformative technologies that are reshaping industries worldwide.

Ready to Build Something Amazing?

If you're excited about the possibility of creating a world-class virtual receptionist system using the latest in AI technology, we want to hear from you. Bring your expertise, creativity, and passion to arenaflex, and let's build something extraordinary together.

Apply now to join our team and help us transform how businesses communicate with their customers. This is more than a development project—it's an opportunity to shape the future of intelligent customer interactions.

Location: Remote / Flexible

Employment Type: Contract-to-Hire

Estimated Timeline: 4-8 weeks for Phase 1

Required Availability: Full-time engagement during development phase