61N Tech Stack

Critical information systems for defense and national security

IT Services and IT Consulting Tampere 11–50 employees Founded 2022 Privately Held

61N builds operational data platforms and information systems for defense and security agencies across Finland. The stack—Kotlin, Java, Python, Kafka, Spark, Iceberg, PostgreSQL, Kubernetes, OpenShift—is shaped for high-throughput, governed data pipelines in classified environments. Projects span sensor data ingestion, data governance for defense contexts, and system integration testing, with hiring concentrated in senior and mid-level engineering roles, indicating a focus on architectural complexity over headcount scaling.

Tech Stack 43 technologies

Core StackKotlin Java TypeScript React Node.js Python Apache Spark Iceberg PostgreSQL Ansible Docker Terraform GitLab Scala Apache Flink Kafka dbt AWS Glue Kubernetes AWS Apache Kafka Apache Iceberg OpenShift Nest.js SQL AWS EMR Jupyter Notebook JMeter k6 Locust+13 more

What 61N Is Building

◆Challenges

Ensuring system security
Maintaining secure production environments
Integrating sensor data into operational systems
Ensuring data governance in defense
Managing data pipelines for critical systems

▲Active Projects

Data platform architecture
Data pipeline orchestration
Data analytics services
New system for national security agency
Test automation for system integration and api testing
Building operational data platforms for defense clients
Implementing data governance for classified environments
Developing sensor data ingestion pipelines

Hiring Activity

Steady9 roles · 3 in 30d

Department

Engineering

7

Data

2

Seniority

Senior

5

Mid

3

Junior

1

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About 61N

61N develops critical information systems for the Finnish defense and security sector, focusing on operational data platforms, analytics infrastructure, and system integration. Founded in 2022, the company operates from Tampere with 11–50 employees and works directly with national security agencies and law enforcement. Core work includes data pipeline orchestration, sensor data ingestion, data governance in classified environments, and test automation for mission-critical systems. The engineering emphasis reflects the technical maturity required for high-availability, secure infrastructure in the defense domain.

HeadquartersTampere

Company Size11–50 employees

Founded2022

Hiring MarketsFinland

Frequently Asked Questions

What technology stack does 61N use?

Core languages: Kotlin, Java, Python, TypeScript. Data: Kafka, Spark, Iceberg, Flink, dbt. Infrastructure: Kubernetes, OpenShift, Docker, Terraform, AWS, GitLab. Testing: JMeter, k6, Locust.

What does 61N work on?

Data platform architecture, pipeline orchestration, analytics services, sensor data ingestion, test automation, and data governance for defense and national security agencies.