At Principia Mentis, we build and run ChangeMaker, one of the world's leading SaaS tools for managing large-scale business transformation projects. Our customers include globally operating Fortune 500 companies and big international business consulting firms. Our company has been privately owned and managed since its foundation in 2012 and we pride ourselves in never having sought VC funding.

ChangeMaker is currently on its 5th iteration, running on TypeScript, NodeJS, GraphQL and PostgreSQL and deployed to AWS. Our development team is a small (~10) and highly dedicated group of people ranging from 21 to 52 years of age and including nationalities as diverse as German, Somali, Ukranian and Russian. We value open discussion, humor, and supporting each other. We practice agile software development without subscribing to any specific methodology. We believe in pragmatic engineering and continuous improvement, placing high value on code reviews and both automated and manual testing.

Our offices are located in Lehel, one of Munich's most beautiful neighbourhoods, right between the English Garden and the Isar river. Most of our team members do a mix of on-site and remote work, and the same would be expected of you.

Tasks

As Senior Backend Web Developer, you will

• design, discuss, and implement new features for ChangeMaker - from prototype to production (including testing)
• document architectural and technical decisions
• support and mentor junior engineers and do code reviews
• help maintain and modernize the existing backend codebase

Requirements

We expect you to have

• high proficiency in TypeScript and NodeJS
• a strong understanding of modern web technologies
• solid experience with SQL, ideally PostgreSQL
• experience with GraphQL and API design
• a strong focus on code quality
• a real passion for software engineering
• at least 5 years of professional experience in a backend developer role
• strong communicative skills in English
• a proactive mindset, strong user-centric thinking and orientation to detail

While not essential, experience with any of the following would be advantageous:

• AWS (ECS, S3, RDS, CF)
• test automation
• monitoring, alerting, and performance optimization
• Keycloak
• Python
• PostGraphile
• React
• DevOps
• CI pipelines (e.g. GitHub Actions)
• automation services (e.g. Zapier, Make.com)
• non-AWS cloud deployment setups

Benefits

If you join us, you will

• work on a mature software product with real, masurable impact for major international businesses
• use interesting tech such as event sourcing, logical decoding, and API generation
• be part of a small, dedicated and highly supportive team with minimal hierarchies and room for feature ownership
• be able to do a mix of on-site and remote work with flexible working hours
• enjoy a free daily lunch at a local Greek/Italian restaurant
• receive corporate benefits via Wellpass
• love our beautiful office location between the Isar river and the English Garden, close to the famous "Eisbachwelle" and with good connection to public transport

If this sounds attractive to you, please apply through the application form. You will receive an automated reply after submission but the subsequent steps of the application process will be more personal. We usually do a first technical interview followed by a coding/technical challenge, and then a second interview with our founder and CEO.

While we do not require a cover letter with your application, it would be great to hear about who you are and what keeps you going. We're not huge fans of AI generated content, so if you use AI, make sure we don't notice :-)

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