QA Full-Stack Automation Engineer

NestAI; Helsinki; On-site; EUR 85,000 - 110,000; Full time

Benefits offered by this job

Occupational healthcare

Epassi Flex benefit

Lunch benefit

Regular team lunches

Mac or PC choice

Holiday allowance

Phone benefit

Benefits as we grow

Job summary

NestAI in Helsinki is seeking a QA Full-Stack Automation Engineer to design, build, and scale automated test harnesses and CI/CD pipelines from scratch across UI, API, and edge/cloud services.

You will collaborate with core engineering to ensure data integrity and rapid release velocity, owning testing frameworks and tooling selection as the QA organization grows. This role offers significant autonomy to influence our testing stack and security-conscious practices.

Qualifications

• 5+ years of proven track record of designing, building, and scaling end-to-end test automation frameworks from UI and web interfaces down to hardware-level integration points.
• Deep understanding of complex distributed systems, microservices, and asynchronous communication patterns.
• Strong capability in configuring, building, and maintaining scalable test harnesses embedded into CI/CD pipelines to ensure fast execution times and rapid developer feedback.
• Solid experience testing and validating interfaces and communication protocols across edge points and core backend services (such as REST APIs, gRPC, Kafka, or Protobuf).
• Experience managing and setting up test environments using containerization and orchestration tooling (e.g., Kubernetes, Docker) or Infrastructure as Code (e.g., Terraform).
• Mindset to challenge the status quo, shape new ways of working, and take ownership of selecting and evaluating testing technologies rather than just executing existing code.
• Experience building or operating test setups within specialized deployment setups, such as air-gapped environments or Hardware-in-the-Loop (HIL) simulations.
• Additional experience developing, testing, or validating embedded software—or applying full-stack toolsets to hardware-facing systems is a plus.

Responsibilities

• Design, implement, and maintain scalable end-to-end test automation frameworks across UI, API, and cloud services.
• Embed automated test suites directly into CI/CD pipelines to ensure fast, reliable build validation and prevent regression issues.
• Verify seamless data flows and communication between user interfaces, core backend services, and edge system integration points.
• Collaborate with core software developers to establish testability standards, define requirements, and champion quality practices early in the development lifecycle.
• Track evolving testing architectures and evaluate, select, and introduce modern frameworks and tooling as our stack grows.
• Work closely with core engineering and platform teams on shared software quality and integration infrastructure.

Skills

End-to-end test automation

Distributed systems

CI/CD pipelines

API testing

Tools

Kubernetes

Docker

Terraform

Job description

Company

NestAI is a European AI lab for defence delivering the adaptive operating system for modern battlefield operations. We develop adaptive intelligence for unmanned and command systems: AI that continuously learns from operational data and adapts to changing conditions.

NestOS is our open, modular and interoperable platform that enables this at scale and keeps capability evolution under sovereign European control. Founded in 2025 by Peter Sarlin, whose previous company Silo AI became Europe's largest AI acquisition, NestAI brings together over 200 engineers and scientists and partners with leading European defence forces and industry.

Role Description

As a QA Full-Stack Automation Engineer, you will play a pivotal role in establishing and scaling our internal test automation capabilities. You will be designing, building, and maintaining automated test harnesses and CI/CD pipelines from scratch.

You will work closely with our core engineering, cloud, and edge platform teams to ensure end-to-end data integrity, interface reliability, and rapid release velocity. This role offers significant autonomy to influence our choice of testing frameworks, tools, and best practices as we build out our complete QA organization.

Day-to-Day Responsibilities:

• Design, implement, and maintain scalable end-to-end test automation frameworks across UI, API, and cloud services.
• Embed automated test suites directly into CI/CD pipelines to ensure fast, reliable build validation and prevent regression issues.
• Verify seamless data flows and communication between user interfaces, core backend services, and edge system integration points.
• Collaborate with core software developers to establish testability standards, define requirements, and champion quality practices early in the development lifecycle.
• Track evolving testing architectures and evaluate, select, and introduce modern frameworks and tooling as our stack grows.
• Work closely with core engineering and platform teams on shared software quality and integration infrastructure.

Qualifications:

• 5+ years of proven track record of designing, building, and scaling end-to-end test automation frameworks from UI and web interfaces down to hardware-level integration points.
• Deep understanding of complex distributed systems, microservices, and asynchronous communication patterns.
• Strong capability in configuring, building, and maintaining scalable test harnesses embedded into CI/CD pipelines to ensure fast execution times and rapid developer feedback.
• Solid experience testing and validating interfaces and communication protocols across edge points and core backend services (such as REST APIs, gRPC, Kafka, or Protobuf).
• Experience managing and setting up test environments using containerization and orchestration tooling (e.g., Kubernetes, Docker) or Infrastructure as Code (e.g., Terraform).
• Mindset to challenge the status quo, shape new ways of working, and take ownership of selecting and evaluating testing technologies rather than just executing existing code.
• Experience building or operating test setups within specialized deployment setups, such as air-gapped environments or Hardware-in-the-Loop (HIL) simulations.
• Additional experience developing, testing, or validating embedded software—or applying full-stack toolsets to hardware-facing systems is a plus.

Why join NestAI

At NestAI, you’ll build meaningful, real-world technology as part of a world-class team of engineers, scientists, and experienced professionals. You’ll work on systems where reliability genuinely matters, contribute to Europe’s security and resilience, and solve problems that demand depth, trust, and craftsmanship.

If you want to build with purpose - and with leading experts in the field - you’ve come to the right place.

What we offer

We offer a growing set of practical benefits to support your work and wellbeing, day to day:

• Occupational healthcare (currently provided by Mehiläinen)
• Epassi Flex benefit (sports, culture, commuting, wellbeing)
• Lunch benefit (25% tax-free coverage)
• Regular team lunches and all-hands events
• Your choice of Mac or PC
• Holiday allowance (50% of holiday salary)
• Phone benefit according to company policy (subscription and device)
• We are continuously developing and expanding our benefits as we grow.

Practicalities

Employment is subject to applicable security screening (including SUPO, where required).

NestAI is an equal opportunity employer. We consider all applicants based on their skills, experience, and potential.