Sixtyfour
Overview
Join to apply for the
Founding Engineer — Full-Stack
role at
Sixtyfour . This range is provided by Sixtyfour. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range
$120,000.00/yr - $200,000.00/yr What you’ll do
Build polished, fast product experiences in Next.js + TypeScript (design-quality UI, accessible components, responsive layouts). Design clean backend contracts and APIs (FastAPI/Python) for workflows, jobs, billing, and auth. Evolve our workflow engine (DAG/state machine): scheduling, retries/idempotency, rate limits, progress tracking, logs, and user-visible run history. Ship data pipelines and background workers (Celery/queues), with strong observability and alerting. Scale and harden the stack on AWS + Docker (ECS/EKS or similar), with caching (Redis), pagination, backpressure, and cost controls. Implement product features end-to-end: DB schema → API → UI, including tests and telemetry. Contribute to billing (Stripe), permissions/RBAC, and realtime UX (SSE/WebSockets) for run status. Maintain a high bar for reliability, performance, and UX; instrument everything. Minimum requirements
Strong backend skills in Python (FastAPI preferred): API design, testing, error handling, schema/versioning. Experience deploying/operating with Docker and a major cloud (AWS preferred: ECS/EKS/Lambda, SQS, CloudWatch). Proven work on workflow/job systems: queues, retries, idempotency keys, scheduling, and run histories. Comfortable with Postgres (or MySQL) schema design and Redis (caching, rate limiting, locks). Performance mindset: RSC/Server Actions, data-fetching patterns, bundle/TTFB tuning, DB query perf. Production observability: logs, traces, metrics (e.g., Langfuse, OpenTelemetry, Sentry), and on-call pragmatism. Solid security hygiene (PII handling, secrets, JWT/session auth, CSRF/CORS, least-privilege access). Nice to have
Next.js App Router, RSC, Server Actions, edge/runtime primitives (Vercel/AWS CloudFront). Prisma/Drizzle; tRPC or GraphQL; Zod/JSON schema; feature flags/experimentation. Realtime UX (WebSockets/SSE), optimistic updates, background revalidation. Celery/RQ, event sourcing, or state-machine libs (e.g., Temporal, Dagster, Prefect, XState). Stripe (subscriptions, metered usage, webhooks) and customer-visible billing pages. CI/CD (GitHub Actions), IaC (Terraform), and basic cost/perf dashboards. Search/retrieval familiarity (OpenSearch/Elasticsearch) and simple relevance tuning. Testing: Playwright (e2e), Vitest/Jest, pytest; accessibility checks. Seniority level
Mid-Senior level Employment type
Full-time Job function
Engineering and Information Technology Industries
Research Services Referrals increase your chances of interviewing at Sixtyfour by 2x Get notified about new Full Stack Engineer jobs in
San Francisco, CA .
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Join to apply for the
Founding Engineer — Full-Stack
role at
Sixtyfour . This range is provided by Sixtyfour. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range
$120,000.00/yr - $200,000.00/yr What you’ll do
Build polished, fast product experiences in Next.js + TypeScript (design-quality UI, accessible components, responsive layouts). Design clean backend contracts and APIs (FastAPI/Python) for workflows, jobs, billing, and auth. Evolve our workflow engine (DAG/state machine): scheduling, retries/idempotency, rate limits, progress tracking, logs, and user-visible run history. Ship data pipelines and background workers (Celery/queues), with strong observability and alerting. Scale and harden the stack on AWS + Docker (ECS/EKS or similar), with caching (Redis), pagination, backpressure, and cost controls. Implement product features end-to-end: DB schema → API → UI, including tests and telemetry. Contribute to billing (Stripe), permissions/RBAC, and realtime UX (SSE/WebSockets) for run status. Maintain a high bar for reliability, performance, and UX; instrument everything. Minimum requirements
Strong backend skills in Python (FastAPI preferred): API design, testing, error handling, schema/versioning. Experience deploying/operating with Docker and a major cloud (AWS preferred: ECS/EKS/Lambda, SQS, CloudWatch). Proven work on workflow/job systems: queues, retries, idempotency keys, scheduling, and run histories. Comfortable with Postgres (or MySQL) schema design and Redis (caching, rate limiting, locks). Performance mindset: RSC/Server Actions, data-fetching patterns, bundle/TTFB tuning, DB query perf. Production observability: logs, traces, metrics (e.g., Langfuse, OpenTelemetry, Sentry), and on-call pragmatism. Solid security hygiene (PII handling, secrets, JWT/session auth, CSRF/CORS, least-privilege access). Nice to have
Next.js App Router, RSC, Server Actions, edge/runtime primitives (Vercel/AWS CloudFront). Prisma/Drizzle; tRPC or GraphQL; Zod/JSON schema; feature flags/experimentation. Realtime UX (WebSockets/SSE), optimistic updates, background revalidation. Celery/RQ, event sourcing, or state-machine libs (e.g., Temporal, Dagster, Prefect, XState). Stripe (subscriptions, metered usage, webhooks) and customer-visible billing pages. CI/CD (GitHub Actions), IaC (Terraform), and basic cost/perf dashboards. Search/retrieval familiarity (OpenSearch/Elasticsearch) and simple relevance tuning. Testing: Playwright (e2e), Vitest/Jest, pytest; accessibility checks. Seniority level
Mid-Senior level Employment type
Full-time Job function
Engineering and Information Technology Industries
Research Services Referrals increase your chances of interviewing at Sixtyfour by 2x Get notified about new Full Stack Engineer jobs in
San Francisco, CA .
#J-18808-Ljbffr