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Senior Machine Learning Engineer

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

About this role

Based in Ireland, the Senior Machine Learning Engineer role at bjakcareer involves independently owning critical machine learning subsystems in production to build proactive applications. This position suits an experienced practitioner who excels at solving ambiguous problems and shipping reliable systems at scale.

Role Overview

The Senior Machine Learning Engineer acts as an independent owner of key machine learning subsystems for a proactive artificial intelligence product. The position centers on transforming research concepts into practical production systems while navigating constraints related to latency, cost, reliability, and safety.

Key Responsibilities

Construct core machine learning systems that support a proactive, long-horizon artificial intelligence product.
Manage the entire lifecycle of work including data preparation, training, evaluation, inference, and continuous iteration.
Convert research ideas into operational systems functioning reliably within production environments.
Diagnose and resolve model failures and system problems utilizing actual production signals.
Iterate rapidly by shipping code, measuring outcomes, and refining performance.
Partner with research, product, and engineering teams to deliver tangible value to users.
Guide and review the output of fellow machine learning engineers through technical judgment and example.
Operate effectively under production constraints such as cost, latency, safety, and reliability.

Requirements

Demonstrated history of building and launching machine learning systems utilized by real users.
Comprehensive understanding of how modern machine learning models perform and fail in production settings.
Capability to write robust, production-grade code with a systemic engineering mindset rather than a script-based approach.
Strong sense of ownership and the ability to work independently to finish projects.
Fast learner with clear communication skills and a commitment to improvement through iteration.

Skills and Tools

Python
PyTorch
JAX
GPU-based training and inference systems

About the Company

Operating in Ireland, the organization builds proactive applications for users worldwide to bring intelligence to conversations, daily errands, organization, and workflows with minimal prompting. The product strategy focuses on high reliability for long-running workflows, persistent context, and real-world task completion to minimize hallucinations.

How to Apply

Interested candidates should submit their applications directly on the official company careers page.

Skills and tech stack

PythonPyTorchJAXGPU-based training and inference systemsMachine Learning

Questions candidates ask

What is the primary focus of the Senior Machine Learning Engineer?

The engineer focuses on building core machine learning systems for a proactive artificial intelligence product, managing the complete lifecycle from data preparation to inference and production deployment.

Where is the position located?

The position is located in Ireland.

What technical skills and tools are required?

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

What does the interview process look like?

The interview process consists of 3 to 4 total interviews conducted via virtual meetings and/or onsite sessions, evaluated by technical team members.

What production constraints must the engineer manage?

The engineer must account for latency, cost, reliability, and safety constraints during system development and deployment.

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site