Tech Lead (CTO)
π Chief Technology Officer/Tech Lead
π Weβre open to both an experienced CTO and a strong developer ready to step into this role.
Call2action AI β HR/AI Startup (USA Market)
Call2Action AI is a fast-growing, founder-led startup building AI-powered products for the US hiring and trucking market. Weβre on a mission to transform how companies hire, screen, and communicate with candidates using intelligent agents and automation.
We are looking for a hands-on CTO who is not just a manager, but a builder, architect, and technical co-creator of the company. Someone who lives and breathes startups, loves shipping real products, and wants massive impact.
This is a key leadership role with real ownership over technology, product architecture, and the future of our AI platform.
π₯ What you will do
β’ Own the entire technical vision and execution of the company.
β’ Design and evolve the system architecture: AI layer, backend, infrastructure, integrations, scalability.
β’ Build and lead the engineering function from early stage to growth.
β’ Actively code (especially at early stages): Python, AI pipelines, backend services.
β’ Drive development of AI agents: LLM integrations, RAG systems, NLP, voice pipelines (ASR/TTS).
β’ Make core decisions on stack, infrastructure, security, and performance.
β’ Work closely with founder on product strategy and roadmap.
β’ Integrate AI systems with CRMs, external APIs, and client platforms.
β’ Establish engineering culture, best practices, and hiring standards.
π§ What weβre looking for
β’ Strong background in Python (backend + AI/ML).
β’ Proven experience with AI/ML systems: LLMs, NLP, agents, or production ML pipelines.
β’ Deep understanding of system architecture and building scalable products from scratch.
β’ Experience with cloud infrastructure, APIs, databases, and modern backend frameworks.
β’ Ability to combine strategic thinking with hands-on execution.
β’ Startup mindset: ownership, speed, responsibility, and comfort with uncertainty.
β’ Strong communication skills and ability to work directly with founder and clients.
β’ Willingness to sometimes join late calls due to US clients and partners.
Required skills experience
| Python | 5 years |
| AI/ML | 1 year |
Required languages
| English | B2 - Upper Intermediate |
| Russian | B2 - Upper Intermediate |