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Lead Engineer, Machine Learning

bjakcareerUnited StatesActAI Engineering
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Salary
Not listed
Job type
Full-time
Work mode
Remote
Experience
Lead
Posted
28 Sept 2026
Status
Open · checked 7d ago

About this role

Lead Engineer, Machine Learning at bjakcareer in the United States is a hands-on leadership role that oversees the execution layer of intelligence to convert research and model capabilities into production systems. This position suits an experienced machine learning professional who wants to operate at the intersection of research, systems, and product development.

Role Overview

The Lead Engineer, Machine Learning role at bjakcareer is based in the United States and focuses on building proactive applications with minimal prompting for users globally. The position involves owning the end-to-end machine learning systems powering the organization, covering data management, training, evaluation, inference, and deployment.

Key Responsibilities

Own the complete machine learning systems lifecycle from data and training through evaluation, inference, and deployment.
Construct and develop training and fine-tuning pipelines for large models.
Create evaluation frameworks to measure capability, robustness, safety, and real-world product performance.
Build high-performance inference systems focused on optimizing latency, GPU utilization, memory, cost, and reliability.
Develop data pipelines and systems for high-quality real-world and synthetic training data.
Establish stable production infrastructure to deploy, monitor, and continuously improve models.
Collaborate with research and application engineering teams to translate model capabilities into product enhancements.
Make practical technical trade-offs and iterate rapidly based on real-world performance results.

Requirements

Experience building and shipping machine learning systems into production environments beyond research prototypes.
Strong comprehension of modern large-model training, fine-tuning, evaluation, and inference.
Solid software engineering and systems fundamentals.
Experience running machine learning workloads at meaningful scale, specifically GPU-based systems.
Strong technical judgment and capability to navigate ambiguous problems independently.
Bias toward experimentation, measurement, and shipping.
High standards for correctness, reliability, and production quality.

Skills and Tools

Python
PyTorch
JAX
GPU-based training and inference systems

About the Company

bjakcareer operates as a small, hands-on team with high talent density where engineers maintain broad ownership. The organization focuses on building proactive applications for global users to bring intelligence to conversations, errands, organizing, and workflows without complex prompting.

How to Apply

Interested candidates should apply on the official company careers page.

Skills and tech stack

Questions candidates ask

What is the primary focus of the Lead Engineer, Machine Learning role?

The role owns the execution layer of intelligence, turning research and model capabilities into reliable, scalable production systems across data, training, evaluation, inference, and deployment.

Where is the position located?

The job is located in the United States.

What technical stack is used in this role?

The tech stack includes Python, PyTorch, JAX, and GPU-based training and inference systems.

What does the interview process look like?

The process consists of between 3 and 4 interviews conducted via virtual meetings and/or onsite.

What type of experience is required for this position?

Candidates must have experience building and shipping machine learning systems used in production, strong software engineering and systems fundamentals, and experience operating machine learning workloads at scale, particularly on GPU-based systems.

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site