I'm a full stack software engineer with multiple years experience working with Ruby, JavaScript, TypeScript, and Python. I am currently doing freelance work building AI workflow automation with Innate AI.
🚀 Pendulum BaaS
On a team of 3 engineers, I co-created Pendulum, a comprehensive self-hosted Backend-as-a-Service (BaaS) platform that gives developers extensive features with complete data ownership. Pendulum is designed for teams who want real-time capabilities and rapid development without vendor lock-in.
Key Features:
- Self-hosted & MongoDB-native - Deploy to your own AWS infrastructure
- Real-time by default - All database changes automatically push to subscribed clients via Server-Sent Events
- Complete solution - Backend services, CLI, SDK, and admin dashboard included
- AWS-optimized - One-command deployment using CDK infrastructure as code
- Role-based permissions - Granular CRUD control with document ownership
Technologies Used - TypeScript, Node.js, Express, MongoDB, Docker, AWS (ECS Fargate, DocumentDB, ALB, VPC), AWS CDK, React
💻 Tech Stack
| Category | Technologies |
|---|---|
| Languages | TypeScript, JavaScript, Ruby, Python |
| Backend | Node.js, Express, MongoDB, PostgreSQL |
| Frontend | React, HTML, CSS, Material UI |
| Cloud & DevOps | AWS (ECS, DocumentDB, ALB, VPC, CDK, EC2, RDS), Docker |
| Real-time | Server-Sent Events, WebSockets |
| Tools & APIs | RESTful APIs, JWT Authentication, bcrypt, Jest |
| AI | RAG, MCP, OpenAI API, LangChain |
📫 Let's Connect
- Email: rachrusiecki@gmail.com