Mission-Critical Full Stack Engineer - On-site Finland

NestAI; Helsinki; On-site; EUR 90,000 - 140,000; Full time

Benefits offered by this job

Occupational healthcare

Regular team lunches

Mac or PC

Holiday allowance 50% of holiday pay

Phone benefit

Job summary

NestAI in Helsinki is seeking a Senior Full Stack FDE to own the delivery and integration of our autonomous systems for defense partners. You will tailor NestOS platforms to complex, real-world environments, combining web apps, dashboards, and backend services at scale.

You'll work across React/TypeScript frontends and Node.js/Python/Go backends, collaborating with customer teams and R&D to translate operational needs into scalable features while maintaining security and reliability.

Qualifications

• 5+ years shipping complex web applications and backend systems.
• Strong frontend (React/TypeScript) and backend (Node.js/Python/Go) skills.
• Experience building RESTful APIs, WebSockets, and database management (SQL/NoSQL).
• Familiarity with Docker, Kubernetes, and deployment pipelines across cloud or on-prem.
• Willingness to travel up to 10% within Europe.

Responsibilities

• Own delivery of client-facing web apps, dashboards, and backend services.
• Design and deploy robust APIs and integrate NestOS with external systems.
• Develop high-performance, low-latency frontends for mission environments.
• Apply AI-assisted workflows to accelerate development while preserving security.
• Collaborate with partner tech teams and R&D to translate needs into features.

Skills

Full Stack Development

React/TypeScript

Node.js/Python/Go

REST/WebSockets

Docker/Kubernetes

Cloud/Edge Deployment

Travel readiness

Interpersonal skills

GIS/Mapping

Tools

Docker

Kubernetes

React

TypeScript

Node.js

Python

Go

Job description

NestAI in Helsinki is seeking a Senior Full Stack FDE to own the delivery and integration of our autonomous systems for defense partners. You will tailor NestOS platforms to complex, real-world environments, combining web apps, dashboards, and backend services at scale.

You'll work across React/TypeScript frontends and Node.js/Python/Go backends, collaborating with customer teams and R&D to translate operational needs into scalable features while maintaining security and reliability.