Aptos Labs

Systems Engineer

• Design and implement system-level components for blockchain infrastructure using C, C++, and Rust.
• Maintain strong emphasis on computer systems analysis and implementation.
• Gather requirements for high-throughput, low-latency (≤ 200 ms p95) services; design distributed systems that meet 99.9 % availability SLAs.
• Perform benchmarking and performance profiling to enhance execution efficiency.
• Specify, version, and maintain public and internal APIs plus JSON-RPC/gRPC endpoints.
• Document interfaces and generate strongly typed client libraries.
• Collaborate on the development of secure, low-latency networking protocols and cryptographic primitives. Build fault-tolerant ETL pipelines that transform on-chain events into query optimized relational & NoSQL stores.
• Tune indexes for millisecond reads.
• Provision and scale commodity server fleets (on-prem & cloud).
• Automate with Terraform/Kubernetes, monitor health, capacity, and SLOs. Migrate legacy computing pipelines to modern CI/CD frameworks.
• Support the design of fault-tolerant systems with advanced debugging, logging, and error recovery functionality.
• Model token-economic incentives, auction fee markets, and validator/operator behaviors; prototype algorithms and run agent-based simulations.
• Leverage generative-AI coding agents, static analyzers, and self-healing runbooks to accelerate delivery and cut MTTR.
• Review performance metrics to refine software components for memory and process efficiency.
• Profile CPU, I/O, and network paths; execute load-tests; instrument metrics/tracing/logs; drive post-mortems and capacity plans.
• Maintain and manage a performant suite of APIs, SDKs, and developer tools for consumption by external developers.
• Integrate cryptographic primitives, secure key management, vulnerability scanning, and incident response playbooks.
• Write RFCs, lead design reviews, mentor junior engineers, and coordinate cross-functional delivery with product, infra, and legal teams.

Senior Systems Software Engineer