Full Stack Engineer, AI Systems

Imagine a world where your everyday applications truly understood you, proactively anticipating your needs and streamlining your tasks without endless prompting. That's the ambitious future Bjak is bringing to life. We're on a mission to transform how over 5 billion users interact with basic tools like email, notes, and task lists, infusing them with an intelligence that currently feels like science fiction. If you're a builder who thrives on turning complex AI capabilities into intuitive, production-ready experiences, then buckle up. This is your chance to shape the core of a revolutionary smart assistant, making every user's daily life significantly more enjoyable and efficient.

Overview

At Bjak, we believe in a future where intelligence is seamlessly integrated into every digital interaction. Our product is meticulously designed for high reliability, enabling long-running workflows, maintaining persistent context, and consistently completing real-world tasks. We tackle the exciting challenges of multi-step reasoning, integrating with external tools, and ensuring robust performance even with the non-deterministic nature of AI models. Our ultimate goal is to cut down user task completion time by over 90%, making their daily routines effortlessly productive.

We are searching for a passionate and skilled Full Stack Engineer, AI Systems to join our team. This is a fully remote, worldwide opportunity. You will be instrumental in crafting the product layer that transforms our powerful AI capabilities into tangible, production-grade workflows. This means not just coding, but truly designing how intelligent agents operate, how they gracefully handle failures, recover, and consistently deliver immense value to our users.

Key Responsibilities

Build captivating, end-to-end product features spanning the entire stack, from intuitive frontend interfaces to robust backend systems and deep AI integrations.
Architect sophisticated agent workflows that master planning, intelligent tool use, failure detection, and seamless recovery across multi-step processes.
Integrate advanced Large Language Models (LLMs), sophisticated memory systems, and diverse external tools into systems that perform reliably and predictably in real-world scenarios.
Develop and maintain scalable, high-performance APIs and services that power our proactive AI assistant.
Collaborate closely with AI researchers and product designers to translate cutting-edge AI models into delightful and functional user experiences.
Contribute to the full software development lifecycle, ensuring code quality, testability, and maintainability.

Requirements

Strong proficiency across the full stack, with demonstrated experience in both frontend (e.g., React, Vue, Angular) and backend (e.g., Python, Node.js, Go) development.
Proven experience integrating and working with AI systems, particularly Large Language Models (LLMs) and related technologies.
A deep understanding of system design principles, with an emphasis on building resilient, fault-tolerant, and scalable applications.
Ability to architect and implement complex workflows that manage state, handle non-deterministic behavior, and ensure consistent task completion.
Experience with cloud platforms (AWS, GCP, Azure) and containerization technologies (Docker, Kubernetes) is a plus.
Excellent problem-solving skills and a passion for tackling challenging technical problems at the intersection of AI and product engineering.
A strong commitment to writing clean, well-tested, and maintainable code.

What You'll Gain

The unique opportunity to be at the forefront of AI innovation, building a product that fundamentally changes how people interact with technology.
Work on challenging, impactful problems that push the boundaries of AI applications and system reliability.
A collaborative and supportive remote work environment that values creativity, autonomy, and continuous learning.
Direct influence over product direction and the technical architecture of a groundbreaking AI assistant.
Exposure to cutting-edge AI technologies and methodologies, constantly expanding your skill set.
Be part of a mission-driven company aiming to deliver tangible, time-saving benefits to billions of users globally.