Fullstack Engineer

HadrianAmsterdamOn-siteFull-time3 days ago

Hadrian is hiring a Fullstack Engineer for its Apps & API team in Amsterdam to build and evolve its Atlas and Nova cybersecurity products. The role focuses on .NET backend and Next.js frontend development, requiring 3+ years of API experience with .NET/C# and a customer-obsessed, ownership-driven mindset.

What you'll do

Build and ship features end to end across .NET backend and Next.js frontend, contributing to Nova and Atlas and occasionally supporting other teams' codebases in Python or Go.
Take ownership of projects from technical design to production rollout, making independent decisions and ensuring solutions are reliable, scalable, and maintainable.
Embrace AI-powered engineering by using agents throughout the development lifecycle, evaluating their output, improving context and instructions, and ensuring quality.
Work with trunk-based development and document important technical decisions through Architecture Decision Records (ADRs).
Own what you build in production, including monitoring, alerts, API performance, and incident management.
Work with large datasets in PostgreSQL, optimising queries and using monitoring tools such as pganalyze to maintain performance.
Collaborate with engineers and colleagues through code reviews, sharing knowledge, and continuously improving engineering workflows and agentic processes.
Take initiative in improving products and workflows, exploring opportunities and sharing solutions with the team.
Participate in the team's support rotation and, over time, join out-of-hours support for critical incidents only.
Build specialised products that customers depend on for critical cybersecurity workflows while helping shape how AI agents transform software engineering.

What you need

Must-have

.NETC#ReactTypeScriptSQLORMsSystem designCaching

Nice-to-have

AI agentsAgentic engineering workflowsNext.jsTailwind CSSPythonGoPostgreSQLKubernetes

Soft skills

OwnershipCustomer obsessionCommunicationCollaborationInitiativeCuriosityIndependent decision-makingQuality focus

Fullstack EngineerCybersecurity.NETC#Next.jsReactTypeScriptPostgreSQLAI agentsAmsterdam

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Must-have

Nice-to-have

Soft skills

What you'll do

What you need