- AI & LLM systems
- Multi-agent orchestration, agentic workflows, agent runtimes, RAG pipelines, vector search (pgvector, Qdrant), embeddings, semantic clustering, MCP servers (client + server), streaming STT/TTS, self-hosted inference (AWS SageMaker, Inferentia/Trainium, AWS Neuron SDK), prompt versioning, LLM observability (OpenTelemetry, AWS X-Ray), cost and latency optimization
- Cloud & infrastructure
- AWS (ECS on EC2, SQS, Lambda, S3, RDS, SageMaker, ElastiCache, Neptune, AppSync, CloudWatch, X-Ray, Route 53, WAF, Secrets Manager, ECR, EC2, VPC, CloudFront), CDKTF (incl. authoring custom Terraform providers), Pulumi, Docker, Kubernetes, GitHub Actions, GCP
- Data
- PostgreSQL (row-level security, pgvector), Redis, Qdrant, Neo4j, Amazon Neptune, DynamoDB, MongoDB, Elasticsearch, Kafka (incl. Kafka Streams), RocksDB, Prisma, TypeORM
- Languages
- Rust (tokio, axum, tonic), TypeScript, JavaScript, Python, Go, Kotlin, Java, Ruby, SQL, Cypher/openCypher, C/C++ (embedded firmware)
- Backend & API
- Node.js, NestJS, Express, axum, tonic (gRPC), tokio, FastAPI, GraphQL, AppSync, Flask, Vert.x, WebSocket protocols, JSON-RPC
- Protocols & cryptography
- ed25519/sr25519 signing, Curve25519, content-addressed storage (CID), Substrate/Polkadot SDK (integration), HMAC request signing
- Frontend
- React, Next.js, React Native, Redux, Tailwind, D3.js