HubMub
-
Bolt

Senior ML Platform Engineer

Bolt
Estonia · Full-time · Mid-Senior
We are looking for a Senior ML Platform Engineer to join our ML Platform team to build, evolve and scale AI Infrastructure that powers Bolt's intelligent services

About Us

With over 200 million customers in 50+ countries, Bolt is one of the fastest-growing tech companies in Europe and Africa. And it's all thanks to our people.

We believe in creating an inclusive environment where everyone is welcome, regardless of race, colour, religion, gender identity, sexual orientation, age, or disability.

Our ultimate goal is to make cities for people, not cars, and we need your help to achieve this mission!

About The Role

The ML Platform Team makes ML/AI easy at scale. We streamline development, testing and deployment of ML/AI systems for hundreds of real-time algorithms.

We own training orchestration, an inference software stack and infrastructure, and a Feature Store, including VectorSearch and RAG tooling. We develop LLM tools and CI/CD for ML, covering the whole range of ML infrastructure needs.

Our tech stack includes TypeScript, Python, Spark (batch and structured streaming), Airflow, n8n, MLflow, LiteLLM, AWS SageMaker, Redis, Elasticsearch, Docker, Kubernetes, AWS (S3, EKS), Terraform, Great Expectations.

Main tasks and responsibilities:

  • Designing, building, and optimising components of Bolt’s ML Platform.
  • Optimise and extend our in-house Feature Store Platform serving billions of data points in real-time.
  • Tune infrastructure (k8s and AWS) and build automations to achieve the best cost-performance.
  • Proactively solve technical challenges, discover and build new features, enabling develop efficiency.
  • Support our internal users and help with troubleshooting, and turn user problems into scalable solutions.
  • Raise our product and technical quality bar, promoting software engineering best practices.


About you:

  • 5+ years of experience in Software Engineering, out of which 2+ in ML/MLOPS/AI Engineering.
  • Experience in leading and delivering complex cross-team projects.
  • Production experience with Python, Spark, and Kubernetes.
  • Experience in MLOPS and AI ecosystem, and developing end-to-end ML/AI solutions at scale.
  • You strive for technical excellence while staying pragmatic to achieve outcomes for the users.


Experience is great, but what we really look for is drive, intelligence, and integrity. So even if you don’t tick every box, please consider applying!

Why you’ll love it here:

  • Accelerate your professional growth with unique career opportunities.
  • Enjoy a rewarding salary and stock options, knowing that as Bolt succeeds, so do you.
  • Take care of your physical and mental health with our wellness perks.
  • Celebrate 5 years at Bolt with a 1-month paid sabbatical to recharge.
  • Connect with colleagues at annual company events and smaller team gatherings.
  • Balance flexibility and in-person collaboration with our hybrid model, including at least 12 monthly in-office days.
  • Some perks may differ depending on your location and role.

Key Skills

Ranked by relevance

aws python spark ai elasticsearch kubernetes typescript terraform docker mlflow redis mlops cicd eks s3
Login to Apply
🇪🇪

Country Guide

Estonia

Digital-first ecosystem and startup culture

Posted
Feb 04, 2026
Type
Full-time
Level
Mid-Senior
Location
Tallinn
Company
Bolt

Industries

Software Development

Categories

Engineering Information Technology

Related Jobs

3 roles aligned with this opportunity

View all jobs
View Job Details
EPAM Systems
Related

Senior Data Software Engineer

2026-04-08

Full-time
Mid-Senior
Turkey
Software Development
Information Technology
View Job Details
Nordea
Related

AI Platform Engineer

2026-04-10

Full-time
Mid-Senior
Estonia
Banking
Engineering
View Job Details
Canonical
Related

Embedded Linux Field Engineer for Devices/IoT

2026-04-11

Full-time
Not Applicable
Estonia
Software Development
Engineering