Latest AI JobsBrowse Jobs
bjakcareer logo

Senior Machine Learning Engineer

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

About this role

Senior Machine Learning Engineer is a full-time position based in Sweden, offering an opportunity for an experienced professional to independently own critical machine learning subsystems in production. This role suits a hands-on engineer who excels at transforming ambiguous challenges into reliable, scalable machine learning infrastructure.

Role Overview

The Senior Machine Learning Engineer takes charge of critical machine learning subsystems at ACTAI in Sweden. The position centers on building proactive applications that eliminate complex prompting for everyday tasks like communication, organization, and workflows. Practitioners operate with high autonomy to design, build, and deploy production systems that emphasize reliability and long-running context.

Key Responsibilities

Construct foundational machine learning systems designed to support proactive, long-horizon artificial intelligence products.
Manage projects through their complete lifecycle, including data preparation, training, evaluation, inference, and ongoing iteration.
Convert research concepts into stable, working architectures operating reliably in live production environments.
Investigate and resolve model failures and system bottlenecks using actual production telemetry.
Deliver rapid iterations by shipping functionality, measuring results, refining approaches, and repeating the cycle.
Partner alongside research, product, and engineering groups to deliver tangible utility to end users.
Guide and review contributions from peer machine learning engineers through direct example and sound technical judgment.
Operate effectively within standard production constraints regarding latency, financial cost, reliability, and safety.

Requirements

Demonstrated background in building and deploying machine learning systems utilized by actual users.
Deep comprehension of how contemporary machine learning models behave and fail in production environments.
Proficiency in authoring robust, production-ready code with a systematic engineering mindset.
Ability to assume total ownership, operate autonomously, and drive projects through to completion.
Aptitude for rapid learning, clear communication, and continuous improvement via feedback loops.

Skills and Tools

Python
PyTorch
JAX
GPU-based training systems
GPU-based inference systems

About the Company

ACTAI builds proactive software applications aimed at billions of users who rely on basic tools like email, notes, tasks, calendars, and workflows without requiring complex prompting. The enterprise focuses on delivering high reliability for long-running workflows, persistent context, and real-world task execution while minimizing hallucinations. Operating as a small, highly talented, and hands-on team, the organization makes collective decisions and moves rapidly to organize daily life so individuals can focus on meaningful tasks.

How to Apply

Interested candidates should apply directly on the official company careers page.

Skills and tech stack

Questions candidates ask

Where is the Senior Machine Learning Engineer position located?

The role is based in Sweden.

What primary technologies are used in this role?

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

What is the interview process like?

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

What are the core objectives of the machine learning products at ACTAI?

The objective is to build proactive applications for long-running workflows, persistent context, and real-world task completion with minimal to no prompting.

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site