Build Planar—the Python framework that powers CoPlane's intelligent business process automation. You'll work on core infrastructure challenges including durable execution, AI orchestration, and enterprise scalability.
Candidates must have existing work authorization, as we unfortunately aren't yet in a position to sponsor visas.
What You'll Do
Core Framework Development
- Design Planar's durable workflow execution engine for enterprise processes spanning weeks across departments and vendors
- Build coroutine suspension and resumption mechanisms with state persistence for financial transactions and compliance
- Implement concurrency controls and transaction handling for mission-critical processes
- Create event-driven orchestration systems that coordinate between enterprise systems and human decision points
AI Integration & Performance
- Build integration layers for LLMs handling enterprise document processing and decision-making at scale
- Implement tool calling systems for AI agents to interact with enterprise systems safely
- Design cost optimization and model selection algorithms for production AI workloads
- Architect high-performance data models and query optimization for large-scale workflow execution
Developer Experience
- Create intuitive APIs and abstractions for complex workflow patterns
- Build type safety from database models to API responses
- Develop CLI tools, debugging utilities, and performance monitoring systems
- Write documentation and examples for open-source adoption
What We're Looking For
Qualifications
- 5-8 years building distributed systems infrastructure with expertise in durable execution patterns
- Experience designing developer-first APIs and type-safe runtime systems at scale
- Track record of building workflow orchestration engines, data validation frameworks, or distributed application platforms
- Expert knowledge of Python internals, metaclasses, descriptors, and advanced language features
- Experience with coroutine mechanics, event loops, and custom async frameworks
- Deep understanding of database transactions, ACID properties, and consistency patterns
Preferred Experience
- Background in workflow engines, business process management, or orchestration systems
- Experience with AI/ML model serving, LLM integration, or machine learning infrastructure
- Knowledge of enterprise software architecture, multi-tenancy, and SaaS platforms
- Contributions to open-source projects or maintenance of developer-facing libraries
- Experience with cloud-native architectures, containerization, and Kubernetes
- Ability to design fault-tolerant systems with graceful degradation and recovery
- Experience mentoring engineers and establishing technical standards
- Excellent written communication for technical documentation and API design
Why CoPlane?
Technical Impact
- Build infrastructure that enables financial back offices to orchestrate reliably across enterprise systems with AI at the core
- Work on novel problems in durable execution and AI orchestration for mission-critical business operations
- Shape the developer experience for the next generation of business process automation
- Lead development of Planar as a major open-source project in the AI/workflow space
- Ground-floor opportunity to shape technical strategy and become a recognized expert in AI workflow infrastructure
Compensation & Benefits
- Competitive compensation and founding team equity
- Full benefits package (health, dental, vision)
- Remote-first with flexible PTO
- Learning stipend and top-tier equipment setup
Ready to Build the Infrastructure for AI-Powered Automation?
We're looking for an engineer who gets excited about solving hard infrastructure problems and creating tools that other developers love to use.
Apply by sending your resume, GitHub profile, and a brief note about your most interesting framework/infrastructure project to founders@coplane.com
CoPlane is an equal opportunity employer committed to diversity and inclusion.