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REAKTOR’S TECH COMMUNITY IS LOOKING FOR A SENIOR PLATFORM ENGINEER TO JOIN OUR DEFENCE & SECURITY BUSINESS UNIT IN HELSINKI.
Our Defence & Security Unit brings together around 70 professionals working on technically demanding and societally meaningful
projects. Here, you can take ownership of important technical decisions and build systems whose reliability and security genuinely
matter.
We are looking for someone who enjoys designing and building large-scale on-premise and private cloud platforms. If you love
working hands-on with IaC, CI/CD, security, and observability to solve complex infrastructure challenges alongside product teams
and clients, you might be a great fit
YOUR ROLE IS TO TURN COMPLEX, SECURITY-CRITICAL INFRASTRUCTURE INTO A RELIABLE PLATFORM THAT DEVELOPMENT TEAMS CAN BUILD ON.
You will design, build and operate on-premise infrastructure and private cloud platforms that support critical products and our
clients’ business needs.
You will be part of both a consulting team working closely with the client and a productisation team bringing solutions to
international markets. The role combines hands-on engineering, collaboration and technical decision-making.
Your daily tasks include:
- Designing, implementing and maintaining modern on-premise and private cloud environments, including GPU-enabled infrastructure
for AI workloads, to help product teams deliver high-quality solutions.
- Enabling scalable and resilient infrastructure that can grow with demand and keep the digital services running reliably on
physical hardware and virtualization layers.
- Promoting standardization through common tools, processes and configurations to reduce complexity, improve maintainability, and
accelerate development cycles.
- Acting as a trusted advisor by working closely with product teams and other stakeholders to understand the requirements and
provide the infrastructure support they need.
YOU ENJOY TURNING COMPLEX, FRAGMENTED INFRASTRUCTURE INTO STREAMLINED, SCALABLE PLATFORMS THAT LET TEAMS MOVE QUICKLY AND
RELIABLY.
What we are looking for:
- Hands-on experience in platform/ infra/ DevOps roles. We don’t have a hard limit with years of experience, but we’ve noticed
that these competencies often take 8+ years to accumulate.
- Deep expertise in on-premise infrastructure, including production experience with virtualization technologies (e.g., VMware
vSphere, KVM, OpenStack), networking, firewalls, IAM, and hardware-level monitoring.
- Experience with at least one IaC/configuration management tool applicable to bare-metal or private clouds (e.g. Terraform,
Ansible, SaltStack, Puppet)
- Strong understanding of application architectures, container orchestration (e.g., Kubernetes, OpenShift), and the ability to
read and reason about code to debug platform issues
- Experience implementing strict security best practices in air-gapped or highly regulated environments following industry
standards and compliance
- This position requires Finnish citizenship due to client and security regulations. The selected candidate must successfully
complete a security clearance process.
Nice-to-have skills:
Why join us?
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.
While working at Reaktor, we’ll provide you with:
- 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 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 to discuss hot topics in tech and design
- Many different 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
Diversity, equity, and inclusion
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. Read more about our
DEI work here.