Lead AI Voice & Full-Stack Engineer

Overcy.ai is an early-stage technology company building AI-powered voice agents and automated workflows that perform real business functions.

Our platform combines AI voice, calling, texting, lead qualification, customer intake, scheduling, follow-up, integrations, and workflow automation.

We already have a working technical foundation, product infrastructure, integrations, and active development in place. This is not a concept-stage project or a build starting from zero.

We are hiring someone to take ownership of the existing platform, understand what has already been built, strengthen it, complete unfinished components, and lead its continued development through launch and growth.

The Role

We need a highly capable, hands-on engineer who can own the complete technical process from start to finish.

You will evaluate the existing system, determine what is working and what needs improvement, establish the technical direction, write production code, build integrations, test workflows, manage deployments, monitor performance, and resolve problems.

This is not a management-only or project-management position. You must be able to personally perform the technical work and remain accountable for the finished product.

As an early-stage startup, our products, priorities, and opportunities will continue to evolve. You must be willing to grow with the company, pivot quickly, wear multiple technical hats, and handle whatever is necessary to move the product and business forward.

What You Will Own

• Take complete technical ownership of the existing Overcy platform
• Audit the current architecture, codebase, infrastructure, integrations, and backlog
• Preserve what is working while repairing, replacing, or improving what is not
• Build AI voice agents and automated workflows from concept through production
• Develop frontend applications, backend systems, APIs, databases, dashboards, and internal tools
• Evaluate and implement voice and telephony technologies such as Retell AI, Vapi, Twilio, ElevenLabs, OpenAI Realtime, LiveKit, Pipecat, or comparable platforms
• Build inbound and outbound calling, transfers, scheduling, data extraction, notifications, escalation, and follow-up workflows
• Connect CRM systems, communications platforms, calendars, payment tools, webhooks, and other third-party services
• Improve conversational quality, latency, reliability, interruption handling, and workflow completion
• Establish testing, QA, logging, monitoring, analytics, documentation, security, and deployment standards
• Diagnose and resolve bugs, failed integrations, performance issues, and production problems
• Translate business ideas into practical technical plans and functioning products
• Manage technical priorities, releases, timelines, and launch readiness
• Help recruit and lead additional engineers as the company grows

Startup Mentality

This role requires someone who wants to help build a company-not simply complete assigned development tickets.

You must be willing to:

• Work across architecture, coding, integrations, testing, deployment, and troubleshooting
• Adapt quickly when priorities or product direction change
• Learn and implement new technologies when the product requires them
• Build practical solutions without waiting for perfect conditions
• Take responsibility for results-not merely completed tasks
• Communicate problems early and bring forward solutions
• Work beyond standard hours during important launches, deadlines, or production issues
• Stay engaged until critical problems are resolved
• Grow into greater technical leadership as Overcy expands

This is not a traditional clock-in, clock-out role. We need someone willing to grind, solve difficult problems, and take ownership of the outcome.

• Significant experience personally building and launching production software
• Strong full-stack experience across frontend, backend, APIs, databases, and cloud infrastructure
• Experience building AI agents, voice applications, LLM-powered systems, or workflow-automation products
• Experience with telephony, real-time communications, speech-to-text, text-to-speech, and conversational systems
• Strong experience with Python and/or Node.js and TypeScript
• Experience integrating APIs, webhooks, communications platforms, CRM systems, and third-party services
• Ability to evaluate AI and voice technologies based on quality, latency, reliability, cost, and scalability
• Experience with cloud deployment, authentication, security, monitoring, logging, and automated testing
• Ability to quickly understand and improve an existing system
• Strong product judgment and the ability to prioritize what should be built, fixed, simplified, delayed, or eliminated
• Ability to work independently and communicate directly with company leadership
• Availability to work from our Torrance office at least three days per week, Candidates seeking the highest end of the range must demonstrate the ability to independently own architecture, development, AI voice systems, integrations, testing, deployment, technical operations, and delivery of the finished product.

This is not the right position for someone who:

• Primarily manages other developers
• Needs another engineer or outside agency to complete the work
• Only builds prototypes that cannot operate in production
• Wants responsibilities limited to one narrow technical area
• Requires detailed instructions before beginning every task
• Is uncomfortable with changing priorities
• Is looking for a predictable 9-to-5 environment
• Is balancing multiple full-time positions or outside clients

Work Arrangement

This is a full-time position with a hybrid option.

The selected candidate must work from our Torrance office a minimum of three days per week. Remaining days may be worked remotely based on company priorities, launches, meetings, and performance., * Base salary: $120,000-$200,000

• Final compensation will be based on experience, technical ability, demonstrated execution, and level of ownership
• Performance-based incentive opportunity
• Potential long-term equity consideration based on results, leadership, and sustained fit, * A clear explanation of what you personally designed and coded
• The AI, voice, telephony, and infrastructure technologies you used
• Your availability to work in Torrance at least three days per week

Selected candidates will be asked to walk through a real product they built, explain their technical decisions, and complete a paid practical evaluation based on an actual Overcy workflow.

Pay: $120,000.00 - $200,000.00 per year