Head of Developer Platform (m/f/x)

osapiens; Mannheim; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Hybrid work options

Growth opportunities

Team events in Mannheim

Job summary

osapiens in Mannheim is seeking a Developer Relations professional to bridge the gap between the platform and external developers. You will own tooling ecosystems, SDKs, and documentation, and drive developer experience across internal and partner teams.

Join a fast-growing unicorn with a hybrid work model, three days per week in the office in Mannheim. You will build developer portals, foster a thriving community, and ensure content is current and high-quality.

Qualifications

• Experience in establishing and maintaining developer ecosystems.
• Ability to translate developer needs into platform improvements.
• Proven track record with developer portals, docs, or knowledge bases.
• Strong communication across diverse audiences, internal and external.

Responsibilities

• Own the tooling ecosystem between the application layer and the osapiens platform, including SDKs and integrations.
• Lead framework groups and evolve osapiens-native frameworks for developers.
• Establish feedback loops between application teams and platform engineering; translate needs into improvements.
• Own osapiens developer documentation, knowledge base, and best-practice library.
• Build and manage communication channels with external partners and foster a vibrant developer community.

Skills

Developer relations

Platform engineering

Technical enablement

Developer workflows

Technical documentation

German language

English language

Tools

SDKs

Developer portals

Documentation platforms

Job description

About osapiens At osapiens, more than 550 talented minds unite around one mission: enabling sustainable growth for businesses worldwide. Founded in 2018 and headquartered in Mannheim, Germany, we have built the AI-driven osapiens HUB - a multi-tenant platform hosting 26 enterprise-grade solutions designed for cross-company collaboration, automation, and compliance. With offices across Europe and the US, we are shaping the future of scalable and secure business technology.

Department

osapiens Hub

Location

Mannheim

Description

As osapiens grows its platform and expands its partner ecosystem, the bridge between the core platform and the developers building on top of it becomes mission-critical. This role owns that bridge: ensuring application teams and external partners have the tools, frameworks, documentation, and community support they need to build with confidence on the osapiens HUB. You directly shape how efficiently and consistently development happens across the organization and beyond. This position follows a hybrid work model with a requirement to be in the office three times per week.

Your Key Responsibilities

• Own the full tooling ecosystem between the application layer and the osapiens platform — including SDKs, integrations, and developer-facing interfaces
• Lead framework groups and drive the evolution of osapiens-native frameworks for internal and external developer use
• Establish and maintain structured feedback loops between application teams and platform engineering; translate developer needs into platform improvements
• Own osapiens' developer documentation, best practice library, and knowledge base — ensuring content is current, accessible, and high-quality
• Build and manage all communication channels with external partners (developer portals, forums, newsletters) and cultivate an active osapiens developer community

Your Experience

• Background in Developer Relations, Platform Engineering, Technical Enablement, or a comparable role
• Deep understanding of modern software development processes, toolchains, and developer workflows
• Proven experience building and maintaining developer portals, documentation platforms, or knowledge bases
• Strong communicator: able to translate complex technical content for diverse audiences, internally and externally
• Structured, self-directed working style with high standards for quality; fluent in both German and English

Join us for this and more...

• A purpose-driven mission tackling complex sustainability challenges while working alongside global industry pioneers at a fast-growing unicorn company
• Room for creativity through collaborative teamwork and an open communication culture
• Flexibility and team bonding with our hybrid work options
• Fuel for your growth journey, both personally and professionally
• Sustainable mobility options, promoting eco-friendly commuting solutions
• Fun team events and outings with our global teams
• Inspiring workspaces in Mannheim and beyond