Full Stack Developer

Control Risks

. Report to the CTO . Work across a modular monolith platform built with .NET 10 on the backend and React on the frontend . Own features from requirements through production . Build and extend backend modules across

Posted 11/7/2026full-timeMadrid • SpainMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in .NET development, particularly with C#, and possesses strong skills in React and TypeScript. Proficient in implementing clean architecture, testing methodologies, and managing containerized applications using Docker and Kubernetes.

Highest-signal resume keywords

4+ Years .NET Development (C#)Strong React and TypeScript ExperienceProduction Experience with RabbitMQPostgreSQL ProficiencyPractical Kubernetes Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

.NET DevelopmentC#ReactTypeScriptRabbitMQPostgreSQLKubernetesDockerTDDEnd-to-End Testing

Soft Skills

Strong Written CommunicationStrong Verbal Communication

Tools & Technologies

Claude CodeGitHub CopilotCI/CDJiraNotion

Industry Keywords

Clean ArchitectureSOLID PrinciplesModular MonolithDDDGraph-Based Data Modelling

Tech Stack

Tools & technologies

DockerGoogle Cloud PlatformKubernetesNeo4jPostgresRabbitMQReactTypeScript.NET

About the role

Key responsibilities & impact

Report to the CTO
Work across a modular monolith platform built with .NET 10 on the backend and React on the frontend
Own features from requirements through production
Build and extend backend modules across Domain, Application, Infrastructure, and API layers
Implement RabbitMQ and HTTP integrations with retry, dead-letter, and observability patterns
Design PostgreSQL schemas, migrations, and query optimisation
Write unit, integration, and end-to-end API tests using a test-first approach
Contribute to coding standards, pull-request reviews, and architectural decisions
Build accessible React and TypeScript components and multi-path compliance forms
Maintain design-system consistency and collaborate with the UX designer
Integrate frontend and backend through typed API contracts, loading states, error boundaries, and optimistic updates
Use Claude Code with CLAUDE.md, SKILLS.md, and RULES.md context files
Translate Jira requirements and Notion designs into structured Claude Code prompts
Maintain and improve the Claude Code context layer
Evaluate AI-generated code rigorously
Build and maintain secure, lean Docker images
Deploy and manage Kubernetes workloads, manifests, Helm charts, configuration, and secrets
Collaborate with DevOps on CI/CD, environment configuration, and production readiness
Participate in a light on-call rotation for production incidents

Requirements

What you’ll need

4+ years of professional .NET development (C#)
Strong understanding of clean architecture and SOLID principles
Solid React and TypeScript experience
Genuine TDD discipline
Understanding of unit, integration, and end-to-end testing
Production experience with RabbitMQ or similar message brokers
PostgreSQL proficiency, including schema design, migrations, query analysis, and indexing
Practical Kubernetes experience, including manifests, pod scheduling, and deployment debugging
Docker fluency, including lean layered images and multi-stage builds
Experience with modular monolith or DDD-influenced codebases
Strong written and verbal English communication skills
Experience using Claude Code, GitHub Copilot, or similar AI coding assistants is a strong advantage
Familiarity with AI context files is a strong advantage
GCP experience is a strong advantage
Playwright or similar end-to-end testing experience is a strong advantage
Exposure to knowledge graphs, Neo4j, or graph-based data modelling is a strong advantage
CV must be submitted in English

Benefits

Comp & perks

Competitively positioned compensation and benefits package, transparent and summarised in the full job offer
Discretionary global bonus scheme based on company and individual performance
Hybrid working arrangements supporting flexible and remote working
Direct responsibility, career development, and opportunity to work collaboratively on fascinating projects
Inclusive global work environment
Access to business resource groups including MOSAIC, the Women's Network, and Synergy
Equal opportunity employer
Reasonable interview-process adjustments available