Technical Lead, Applications

Bjak•New York, NY

About The Position

A1 is building a proactive AI system that carries work forward across conversations, tools, and time. You are responsible for the engineering systems, teams, and execution that turn ML capability into reliable, fast, and intuitive user experiences across backend, mobile, and desktop platforms.

Requirements

Significant experience leading application or product engineering for complex systems.
Strong hands-on background building and shipping backend systems used in production.
Experience delivering AI-powered products, with a deep understanding of model integration trade-offs.
Excellent system design skills across services, APIs, clients, and data flows.
Comfort operating across platforms (backend, mobile, desktop), even if your depth is in one.
Proven ability to make high-impact technical decisions under ambiguity.
A strong bias toward shipping, iteration, and learning from real-world usage.
Move fast without breaking fundamentals

Responsibilities

Own the application engineering strategy and execution across backend, mobile, and desktop.
Lead and grow a small, senior applications team, including backend, mobile, and desktop engineers.
Set the architectural direction for AI-powered product workflows, APIs, and client integrations.
Ensure AI capabilities are integrated into the product with clear abstractions, predictable behavior, and graceful failure modes.
Partner closely with Machine Learning leadership to translate model capability into shippable product features.
Make high-impact decisions across latency, cost, reliability, security, and user experience.
Establish a strong execution culture through code reviews, design reviews, and hands-on technical leadership.
Ensure production readiness: observability, monitoring, retries, fallbacks, privacy, and cost controls.
Balance speed and discipline – shipping quickly without compromising long-term system quality.

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