Senior Systems Software Engineer

Aptos Labs

Senior Systems Software Engineer designing and building distributed systems for blockchain infrastructure. Collaborating across the blockchain stack using advanced programming languages like C, C++, and Rust.

Posted 6/29/2026full-timeSan Francisco • California • 🇺🇸 United StatesSenior💰 $213,512 - $220,000 per yearWebsite

Tech Stack

Tools & technologies

CloudDistributed SystemsETLGRPCKubernetesNoSQLRustTerraform

About the role

Key responsibilities & impact

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.

Requirements

What you’ll need

This position requires a Master’s degree, or foreign equivalent, in Economics, Business Economics, Computer Science, or a related field
10 years of experience as a Systems Engineer, Software Engineer, Software Developer, Information Technology Officer, or a related occupation
Systems programming in C, C++, and Rust
Low-level performance optimization and hardware interfacing
Distributed systems and threading runtimes
CI/CD pipeline design using GitHub Actions and on-prem infrastructure
Work with multiple systems, including web development platforms, high-performance computing systems, core operating system kernels, developer tools, and systems related to economic applications
Develop distributed ledger technologies or crypto economic distributed systems.

Benefits

Comp & perks

Competitive salary ($213,512 - $220,000 USD)
Significant equity and upside potential
Flexible work environment
Unlimited vacation policy
Health insurance
Hardware and development tool allowance
Conference and learning budget

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Systems ProgrammingLow-Level Performance OptimizationBenchmarking and Performance ProfilingAPI Specification and MaintenanceFault-Tolerant System DesignCryptographic Primitives IntegrationLoad TestingCapacity PlanningToken-Economic ModelingAgent-Based Simulations

Soft Skills

MentoringCollaborationDocumentation

Certifications

Master’s Degree in EconomicsMaster’s Degree in Computer Science