PsiQuantum · 3 weeks ago
Senior Full-Stack Software Engineer, Quantum Architecture, Platform
Palo Alto, California, United States
Full-time
Onsite
Senior Level, Lead/Staff
$180K/yr - $210K/yr
8+ years expPsiQuantum is focused on building the first useful quantum computers. They are seeking a Full-Stack Software Engineer to design and implement backend and web systems for the Quantum Architecture platform, collaborating with physicists and researchers to develop robust software systems for simulating quantum architectures.
ComputerHardwareQuantum ComputingSemiconductorSoftware
Responsibilities
Lead the redesign of our core architecture platform backend, defining clear service boundaries and APIs in Python so simulation, data, and UI layers stay decoupled and manageable
Build resilient Python-first pipelines that move jobs, configs, and artifacts between on-prem/HPC environments and cloud services, emphasizing reproducibility and debuggability
Own database and caching strategy-schema/version design, indexing, migrations, and Redis/Valkey-backed state layers-so long-lived experiments evolve without breaking downstream users
Stand up and operate Terraform-managed AWS infrastructure (EC2/EKS/S3/IAM, etc.), integrate authN/Z (OAuth2/OIDC/SSO), and embed logging/metrics/tracing for operational clarity
Deliver internal tooling (CLIs, REST/gRPC endpoints, Python SDKs) and documentation that let researchers and engineers launch, observe, and compare simulations without digging through multiple repos
Raise the engineering bar: typed Python, thorough testing, CI/CD gates, and mentoring peers on platform design, performance tuning, and modular system composition
Qualification
Required
8+ years building backend/platform systems in Python, including leading significant re-architecture efforts
Expert-level Python (async, packaging, profiling) with production experience in FastAPI/Flask/Django and typed interface patterns (pydantic/mypy)
Demonstrated success shipping reproducible pipelines or workflow engines that span HPC/Slurm-style schedulers and cloud infrastructure, including task orchestration and artifact provenance
Deep AWS + Terraform experience across multi-environment deployments; comfortable wiring auth layers and managing secrets/service identities
Strong database and state-system background (Postgres/MySQL/Mongo + Redis/Valkey), covering schema design, migrations, query tuning, and cache/state orchestration
History of designing and maintaining internal APIs/SDKs (REST/gRPC/Python clients) with clear contracts, versioning, and documentation practices
Hands-on with CI/CD, static analysis, typed Python tooling, observability stacks (Prometheus/Grafana/OpenTelemetry, profilers) to keep services reliable and diagnosable
Preferred
Experience building platforms that serve research-heavy or experiment-driven teams, where complex workflows and long-running jobs demand clear interfaces and repeatable execution
Benefits
Equity
Benefits
Company
PsiQuantum
PsiQuantum focuses on developing a scalable quantum computer using photonic qubits.
501-1000 employees
H1B Sponsorship
PsiQuantum has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (12)
2024 (10)
2023 (4)
2022 (7)
2021 (15)
2020 (5)
Funding
Current Stage
Late StageTotal Funding
$2.3BKey Investors
BlackRockAtomicoFounders Fund
2025-09-10Series E· $1B
2025-05-30Series Unknown· $22M
2024-11-05Secondary Market
Leadership Team
Peter Shadbolt
Co-founder and Chief Strategy Officer
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