Full Stack Engineer

Company NestAI is Europe’s fastest-growing physical AI lab. We build open, sovereign, and reliable autonomous systems and AI-enabled command capabilities for real-world operations — environments where reliability isn’t optional. Our work spans defence, security, and other mission-critical domains where systems must earn trust through performance, not promises. At the core of what we build is an open, modular, and interoperable AI command foundation that integrates data from multiple sources — from UAV sensors and edge devices to situational intelligence platforms — and turns it into decision support and operational capability. Rooted in Nordic engineering heritage, we focus on openness, reliability, and systems that earn trust through performance. We work with intent, iterate fast, and build technology that protects what matters most. Role Description In this position, we have two primary paths depending on your strengths and career interests: Internal Product R&D and Forward Deployed Engineering (FDE). Internal Product R&D: You will focus on building, scaling, and maintaining the core infrastructure and cloud-based applications that power our long-term product vision.Forward Deployed Engineering (FDE): Embedded directly in our customer's development environment, FDE squads shorten the path from development to fielded capability, validating product capability where assumptions are tested against operational reality. This path is dynamic and highly impactful, where you will navigate shifting environments, collaborate with external stakeholders, and solve complex engineering challenges where adaptability is key.Regardless of the path, you will work with modern web technologies such as React, Node.js, and major cloud platforms (GCP, Azure, or AWS) to build scalable, secure, and efficient solutions. Day-to-day responsibilities include: Design, development, testing, deployment, and debugging of web applications.Building and operating backend services, APIs, and databases.Managing and optimizing cloud environments and production deployments.DevOps practices: Kubernetes, Docker, Terraform, CI/CD, and observability across cloud and on-prem environments.Collaborating closely in agile teams to deliver high-quality solutions.Interfacing directly with key stakeholders to understand requirements, adapt to diverse technical environments, and deploy tailored solutions for FDE roles. Qualifications Deep experience (minimum of 5 years or equivalent experience) in software development: Full Stack or specialized domain expertise.Knowledge of the full web development stack, cloud infrastructure, and DevOps practices.Strong skills in Linux environments and database management.Excellent problem-solving abilities and a strong attention to detail.For the Forward Deployed (FDE) path:A versatile generalist profile; you enjoy a changing scenery and feel comfortable operating across different technical ecosystems.Strong interpersonal and communication skills, with the ability to confidently collaborate with external partners and translate business needs into engineering reality.Pluses: Practical platform engineering, security expertise (OIDC/OAuth2, Vault, compliance), or experience with AI/ML data pipelines. 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. Perks & Benefits 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 eventsYour choice of Mac or PCHoliday 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. We are currently unable to provide visa sponsorship or international relocation support for this position. Candidates must already be based in Finland or in the EU and have a valid work permit for this region at the time of application.