Recruiter snapshot · zorbion.com/tldrmaciej@zorbion.com
Maciej Zaleski
Staff / Principal Software Engineer · Systems Architect
- Kraków, Poland
- Remote-first
- EU and UK work authorisation
- Open to B2B contracting
- years in software engineering
- 20+
- companies co-founded
- 4
- co-founded product acquired
- 1
- organisations worked with or consulted for
- 60+
Technical profile
- Primary languages
- Rust, C#/.NET
- Additional languages
- Go, Python, TypeScript, SQL, Solidity
- Data & messaging
- PostgreSQL, ClickHouse, SQL Server, MongoDB, OpenSearch, Redis, Kafka, SWIFT
- Cloud & infrastructure
- AWS, Kubernetes, Docker, Terraform, Auth0
- Delivery & diagnostics
- GitHub Actions, Jenkins, Jira, Prometheus, Grafana, Sentry, Wireshark, JMeter
- Architecture
- Distributed systems, event-driven architectures, microservices, high-throughput backend platforms
- Engineering practices
- System design, performance optimisation, testing, production reliability, observability
- AI-assisted engineering
- Specification-driven development, agentic workflows, automated testing and validation loops
Role fit
- Staff Software Engineer
- Principal Software Engineer
- Senior Backend Engineer
- Systems / Solution Architect
- Technical Lead
- CTO / hands-on technical leadership
- Working model
- Remote preferred
- Contract
- B2B contracting preferred
- Markets
- Worldwide
Career timeline
- 2026–nowCo-founder and CTO · Tangbls
- 2025–2026Principal Backend Engineer · OpenOrigins
- 2024–nowCo-founder and Founding Engineer · GoToCrypto
- 2022–2024Director, Principal Systems Engineer · Lukka
- 2020–2022Co-founder, Principal Systems Engineer · KeyFi
- 2018–2020Blockchain and protocol engineering · Stratis Platform
- 2011–2018Senior engineer and technical lead · tier-1 banks
Selected delivery
Co-founder, founding engineer
Architected and built an event-driven crypto trading platform with durable decision records, risk controls, a single exchange gateway and reconciliation against exchange fills. In production.
Co-founder, lead engineer
Designed and developed a DeFi portfolio ledger and P&L engine covering about 100 protocols. Lukka acquired the software.
Media provenance platform
Principal backend engineer, OpenOrigins
Architected and built about ten Rust microservices for media ingestion, fingerprinting and similarity search, with Kafka pipelines and ClickHouse analytics.