Don’t send a generic resume — generate a resume and cover letter tailored to this exact role.
Reaktor in Helsinki is looking for Machine Learning Engineers to turn proof-of-concept ideas into production-grade AI services. You will work with client teams to select technologies and deliver projects that provide real value.
You'll build, deploy, and maintain ML models, design scalable architectures, and collaborate with a supportive community. Fluency in English and Finnish is preferred; experience with IaC, SQL, and modern ML tools is expected.
Turn proof of concepts and ideas into production-grade AI services.
If you are interested in building and deploying bleeding edge machine learning models into production, where they continuously deliver tangible value to our customers, you might just be what we’re looking for.
At its core, Reaktor is a technology company that helps ambitious organizations become digital leaders. From premium software development to digital transformation, our global community of experts do it all – here are some of our most recent digital ventures to give you an idea of what that means.
Working together with the client’s tech and business teams and helping them pick the right technologies suitable for their needs
Delivering the client and the team according to the needs of the project
Building, deploying, and maintaining ML models that serve users reliably in production day after day.
Creating architectures for the continuous gathering of new training data for ML models
Building interfaces for delivering the results of ML models to end users
Other software development‑related tasks, such as debugging, designing, and participating in creating the architecture
You enjoy designing scalable machine learning architecture that processes vast quantities of data and delivers refined results to end users.
Hands‑on experience in continuously developing and deploying machine learning models
We don’t have a hard limit on years of experience, but we’ve noticed that these Machine Learning competencies often take 3+ years to accumulate
Experience with common tools, libraries, and platforms in the field of machine learning
A good grasp of common machine‑learning techniques
An understanding of infrastructure‑as‑code practices (e.g. Terraform, CloudFormation, CDK)
Experience working on data with SQL
You are a software engineer at heart and you don't leave a legacy behind
Good communication skills and the ability to work with clients to figure out their data needs
Fluency in both English and Finnish is preferable
For two decades, we’ve been developing qualities and capabilities for adapting, reacting, and supporting change – building Reaktor to hold up in a fast‑paced environment while ensuring the well‑being of our people.
The ability to impact how you work. Together with the client, your team chooses the approach, technologies, and methodologies you think will work best in any given situation
A community with as much support as your heart desires
A team that’s not only experienced but considerate as well – they all want you to succeed
A sustainable work‑life balance and support for your daily life outside of work. (e.g., free moving day, Reaktor car share, sick child care services, office space to use for your private events, etc.)
An opportunity to grow as a professional. In addition to the day‑to‑day work, we offer internal training courses, community events, and 15‑minute coffee breaks to discuss hot topics in tech and design
A possibility to take part in more extended academy‑like studies like Cloud Academy
300+ hobby clubs, from winter swimming and running to knitting and archery, that bring people together outside of (and sometimes inside) office hours. Many of these are supported by Reaktor
Together, we are committed to making Reaktor an environment that embraces and values all of our employees for the whole of who they are. We encourage applicants from all backgrounds to apply, knowing that studies show that members of underrepresented communities don’t apply for jobs unless they fully satisfy all of the requirements. If you're thinking twice about applying for this reason, we invite you to send us your application anyway. You could be just the person we're looking for.
At Reaktor Helsinki, our benefits and perks evolve with our community, and we’re always open to new ideas that will support the wellbeing of Reaktorians. Currently, we offer the following perks:
We offer everyone a top-spec computer and a phone of their choosing to work with and use at work and home. If you need other tools, like a keyboard or a mouse, we'll figure it out, too!
To keep you connected, we’ll cover an unlimited phone plan – and a proper internet connection to your home.
We offer the monthly lunch benefit in addition to your salary, which means you only pay the taxes.
At Reaktor, the recreational benefit is an addition to your salary – and it’s tax‑free.
If you want one, we offer an optional commuting benefit card and a bicycle benefit.
Extensive occupational health care services include specialists’ appointments, operations, vaccinations, dental care, and mental health services, including e.g. psychotherapy.
We support all types of families with encouraging types of parental leave and more, offering support for child care.
Our extensive insurance package safeguards you for accidents, travel, and more.
Our subsidized massage deals keep those shoulders nice and loose.
The Juice‑program enables you to work on open source projects – and get compensated for it!
All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.
We believe there’s more that matters than just the resume. We’re looking for an exciting overlap of curiosity, creativity, people skills, and experience: people who are willing to learn, participate, and share new perspectives.
We take the time to learn about your skills and aspirations and help you learn about ours. Our interview process usually involve three or four conversations over the course of a few weeks. From application to closing, our process takes about four weeks. Your recruiter will keep you up to date on what to expect from each stage of our interviewing process.
We do a variety of different kinds of projects, with the aim of each being meaningful and critical to a client’s business. Our typical engagements are from 6 months to 18 months and involve between 3-6 Reaktorians collaborating closely with our clients. When it comes to picking and choosing, we look at a number of things from the business side. For example, we tend to be interested in the multi‑functional growth potential of the project as well as the technological and digital maturity of the client, their product, and the project overall. However, not all good business is a good fit for us culturally. We only take on new business that aligns with our values, is interesting for our people to work on, and has a great local or global impact.
The core idea behind how we staff is that you will never be alone in a project. When staffing our projects, we first start by going through your preferences and ambitions for learning, be it customer location, the field of business, or some particular technology. We then go through your learning and self‑development targets and do our best to match all of the above to a project. We get multiple projects and new openings in existing projects each month. If there isn’t a perfect fit immediately, we try to find a spot for you in an existing project or take some time while you work on internal projects, or get deeper into onboarding.
Client work is our number one priority, but we’ve gotten pretty good at making the most out of the normal in-between time in the consulting business. Maybe you’ve just joined us, your project has just ended, or you’re rotating out of one and looking for new opportunities, it can sometimes take a while to find the next client project. These are great opportunities to take training, dive into a new topic, or help out with internal development. Your time in between projects does not affect your pay.
It depends on the project in question, as we choose the option that fits best with each client. Sometimes projects are multisite, at other times, there are more on‑site visits, and on rather rare occasions, we are 100% remote. That said, we love to see each other every once in a while and spend time together at get‑togethers and occasional in‑person meetings.