acto

Senior Full Stack Engineer – Apps

acto

full-time

Posted on:

Location Type: Hybrid

Location: Berlin • Germany

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Job Level

Senior

Tech Stack

DockerGraphQLJavaKotlinKubernetesPostgresReactSpringSpring BootSpringBootTypeScript

About the role

  • Own features end to end: Take features from concept to production across frontend and backend, from user interface to database to deployed service
  • Build multi-surface solutions: Ship product improvements across our web app, mobile-optimized field sales solutions, and CRM integrations
  • Surface AI insights: Develop React applications that make complex, AI-generated revenue intelligence actionable for sales teams
  • Power the platform: Build and maintain backend services in Kotlin with Spring Boot that handle scale and complexity
  • Design great APIs: Create and evolve both GraphQL and REST APIs that serve our diverse product surfaces
  • Work with data: Design solutions using PostgreSQL for transactional data and ClickHouse for analytics
  • Own what you deploy: Take full responsibility for your services in production. You build it, you run it, you improve it
  • Shape our architecture: Participate in code reviews and technical discussions that influence our technical direction

Requirements

  • 5+ years of professional software engineering experience shipping production code
  • Strong TypeScript and React skills with real-world production experience
  • Solid JVM experience (Java or Kotlin) and practical Spring Boot experience
  • Proven experience with relational databases and thoughtful API design
  • Comfortable with Docker and Kubernetes fundamentals
  • High agency: You identify problems and solve them without waiting for direction, with a clear bias toward action
  • Product mindset: You think about user impact and business outcomes, not just technical elegance
Benefits
  • 30 days of vacation
  • Attractive Wellhub membership
  • State-of-the-art hardware setup with choice between Mac and Windows
  • Flexible remote work
  • Regular in-person time for key meetings and collaboration
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
TypeScriptReactKotlinSpring BootGraphQLREST APIsPostgreSQLClickHouseDockerKubernetes
Soft Skills
high agencyproblem solvinguser impact focusbusiness outcomes orientation