1. About BitFit Labs
We are building enterprise cryptocurrency wallet that combines advanced Multi-Party Computation (MPC) Threshold Signature Scheme (TSS) with an integrated local DEX aggregation engine.
This hybrid solution provides institutional-grade security for asset custody while enabling seamless, low-latency token swaps without relying on third-party APIs.
Core Features:
- MPC TSS-based Wallet Infrastructure
- Signature Scheme: 2/3 threshold signature distribution
- Multi-chain Support: Bitcoin (BTC), XRP, Solana (SOL), EVM-compatible
- chains (Ethereum, BNB Chain, Avalanche, Arbitrum, Polygon, etc.), TRON
- Hardware Integration: Support for Ledger and Trezor hardware wallets
- Secure Key Management: TSS nodes distributed across isolated
- environments with HSM integration
- Local EVM DEX Aggregator Engine
- Customized Geth Client: Modified Geth node with integrated DEX aggregator functionality
- On-chain Liquidity Indexing: Direct indexing of liquidity pools from multiple DEXs (Uniswap, SushiSwap, Curve, etc.)
- Local Swap Simulation: EVM-based swap simulation to calculate optimal routes, slippage, and pricing
- Zero Third-Party Dependencies: All aggregation logic executed locally for privacy and reliability
- Low-Latency Routing: Sub-second swap path discovery and execution
2. Key Responsibilities
- Infrastructure & Environment Management
- Design, build, and maintain secure, compliant, and highly available production and development environments using IaC on AWS
- Set up and manage onpremise data center infrastructure with TEE (Trusted Execution Environment) capabilities for secure MPC key computation
- Deploy and maintain all critical components:
▪ MPC TSS nodes across multiple chains (BTC, XRP, SOL, EVM, TRON)
▪ Customized Geth node with integrated DEX aggregator engine
▪ Backend API servers for wallet operations and swap routing
▪ Frontend web application
▪ Blockchain full nodes for supported networks
- Blockchain Infrastructure
- Configure and monitor full node synchronization for Ethereum and other supported blockchains
- Manage RPC endpoints and load balancing across multiple nodes
- Ensure high availability of blockchain connectivity with failover mechanisms
- Implement node health checks and automated recovery procedures
- CI/CD & Deployment Automation
- Design and optimize end-to-end CI/CD pipelines using GitHub Actions or GitLab CI
- Automate the entire deployment lifecycle from code commit to secure production release
- Implement blue-green deployments and canary releases for zero-downtime updates
- Provide self-service build, test, deployment, and debugging toolchains for development teams
- Monitoring & Observability
- Build and maintain comprehensive monitoring, logging, alerting, and tracing systems (Prometheus, Grafana, ELK Stack, Jaeger)
- Monitor key metrics across all layers: infrastructure, blockchain nodes, MPC computation, DEX aggregation services, and application performance
- Proactively identify and resolve potential issues to maintain SLA commitments
- Set up dashboards for real-time visibility into system health, swap execution metrics, and wallet operations
- Security & Compliance
- Implement strict identity access control (IAM), network segmentation, and zero-trust principles
- Integrate HSM/KMS for secure key management and MPC TSS operations
- Conduct regular security scans, vulnerability assessments, and penetration testing
- Design and enforce security policies for multi-tenant MPC infrastructure
- Manage SSL/TLS certificates, Nginx reverse proxies, and firewall rules
- High Availability & Disaster Recovery
- Design and implement cross-AZ/region disaster recovery and backup plan
- Plan and execute regular disaster recovery drills
- Optimize resource utilization and infrastructure costs
- Ensure 99.9%+ uptime for critical wallet and swap services
3. Requirements
- Experience: 5+ years of DevOps, SRE, or cloud infrastructure engineering experience with large-scale distributed systems
- Cloud Platform: Expert-level knowledge of at least one major cloud provider (AWS, GCP , or Azure) and their managed services
- Container Orchestration: Deep expertise in Docker and Kubernetes with significant production environment experience
- CI/CD Tools: Proficiency with Jenkins, GitHub Actions, or GitLab CI/CD tools- Programming: Strong command of at least one programming or scripting language (Go, Python, Shell) for developing custom automation tools and scripts
- Linux Administration: Solid experience with Ubuntu/RedHat server administration and troubleshooting
- Networking: Strong understanding of networking concepts, firewalls, SSL/TLS, load balancing, and DNS
- Monitoring Stack: Hands-on experience with Prometheus, Grafana, or equivalent monitoring solutions
- Documentation: Excellent technical documentation and cross-team collaboration skills
- Responsibility: Strong sense of ownership and accountability for system reliability
4. Preferred Qualifications
- Blockchain Experience:
- Direct experience operating Ethereum, Bitcoin, or other blockchain full nodes
- Knowledge of Web3 technologies, smart contracts, and DeFi protocols
- Understanding of MPC, cryptographic, and key management systems
- Familiarity with HSM integration and hardware security modules
- Advanced Infrastructure:
- Experience with Istio, Linkerd, or other service mesh technologies
- Chaos engineering practices and fault injection testing
- Multi-cloud or hybrid cloud architecture experience
- Kubernetes expertise for post-MVP scaling scenarios
- Security Certifications: CSP, CISSP, or equivalent security certifications
- Database: Redis, TimescaleDB, InfluxDB for high-performance data operations
- Secrets Management: Experience with HashiCorp Vault, AWS Secrets Manager, or similar tools