Sixtyfour
Sixtyfour is offering a competitive pay based on skills and experience.
Base pay range $120,000.00/yr - $200,000.00/yr
What You’ll Do
Design and ship agentic systems (tool calling, multi‑agent workflows, structured outputs) that reliably fetch, extract, and normalize data across the web and APIs.
Own robust web scraping: directory crawling, CAPTCHA handling, headless browsers, rotating proxies, anti‑bot evasion, and backoff/retry policies.
Develop backend services in Python + FastAPI with clean contracts and strong observability.
Scale workloads on AWS + Docker (batch/queue workers, autoscaling, fault tolerance, cost control).
Parallelize external API requests safely (rate limits, idempotency, circuit breakers, retries, dedupe).
Integrate third‑party APIs for enrichment and search; model and cache responses; manage schema evolution.
Transform and analyze data using Pandas (or similar) for normalization, QA, and reporting.
Pitch in across the stack: billing (Stripe), and occasional front‑end changes to ship end‑to‑end features.
Minimum Requirements
Hands‑on experience with agentic architectures (tool calling, structured outputs/JSON, planning/execution loops) and prompt engineering.
Proven web scraping expertise: solving CAPTCHAs, session/auth flows, proxy rotation, stealth techniques, and legal/ethical constraints.
AWS + Docker in production (at least two of: ECS/EKS, Lambda, SQS/SNS, Batch, Step Functions, CloudWatch).
Building high‑throughput data/IO pipelines with concurrency (asyncio/multiprocessing), resilient retries, and rate‑limit aware scheduling.
Integrating diverse external APIs (auth patterns, pagination, webhooks); designing stable interfaces and backfills.
Strong data wrangling with Pandas or equivalent; comfort with large CSV/Parquet workflows and memory/perf tuning.
Excellent ownership, product sense, and pragmatic debugging.
Nice to have
Entity resolution/record linkage at scale (probabilistic matching, blocking, deduping).
Experience with Langfuse, OpenTelemetry, or similar for tracing/evals; task queues (Celery/RQ), Redis, Postgres.
Search relevance (BM25/vector/hybrid), embeddings, and retrieval pipelines.
Playwright/Selenium, stealth browsers, anti‑bot frameworks, CAPTCHA providers.
CI/CD, infrastructure as code (Terraform), and cost/perf observability.
Security & compliance basics for data handling and PII.
Seniority level Entry level
Employment type Full‑time
Job function Engineering and Information Technology
Industries Research Services
Location: San Francisco, CA
Referrals increase your chances of interviewing at Sixtyfour by 2x.
#J-18808-Ljbffr
Base pay range $120,000.00/yr - $200,000.00/yr
What You’ll Do
Design and ship agentic systems (tool calling, multi‑agent workflows, structured outputs) that reliably fetch, extract, and normalize data across the web and APIs.
Own robust web scraping: directory crawling, CAPTCHA handling, headless browsers, rotating proxies, anti‑bot evasion, and backoff/retry policies.
Develop backend services in Python + FastAPI with clean contracts and strong observability.
Scale workloads on AWS + Docker (batch/queue workers, autoscaling, fault tolerance, cost control).
Parallelize external API requests safely (rate limits, idempotency, circuit breakers, retries, dedupe).
Integrate third‑party APIs for enrichment and search; model and cache responses; manage schema evolution.
Transform and analyze data using Pandas (or similar) for normalization, QA, and reporting.
Pitch in across the stack: billing (Stripe), and occasional front‑end changes to ship end‑to‑end features.
Minimum Requirements
Hands‑on experience with agentic architectures (tool calling, structured outputs/JSON, planning/execution loops) and prompt engineering.
Proven web scraping expertise: solving CAPTCHAs, session/auth flows, proxy rotation, stealth techniques, and legal/ethical constraints.
AWS + Docker in production (at least two of: ECS/EKS, Lambda, SQS/SNS, Batch, Step Functions, CloudWatch).
Building high‑throughput data/IO pipelines with concurrency (asyncio/multiprocessing), resilient retries, and rate‑limit aware scheduling.
Integrating diverse external APIs (auth patterns, pagination, webhooks); designing stable interfaces and backfills.
Strong data wrangling with Pandas or equivalent; comfort with large CSV/Parquet workflows and memory/perf tuning.
Excellent ownership, product sense, and pragmatic debugging.
Nice to have
Entity resolution/record linkage at scale (probabilistic matching, blocking, deduping).
Experience with Langfuse, OpenTelemetry, or similar for tracing/evals; task queues (Celery/RQ), Redis, Postgres.
Search relevance (BM25/vector/hybrid), embeddings, and retrieval pipelines.
Playwright/Selenium, stealth browsers, anti‑bot frameworks, CAPTCHA providers.
CI/CD, infrastructure as code (Terraform), and cost/perf observability.
Security & compliance basics for data handling and PII.
Seniority level Entry level
Employment type Full‑time
Job function Engineering and Information Technology
Industries Research Services
Location: San Francisco, CA
Referrals increase your chances of interviewing at Sixtyfour by 2x.
#J-18808-Ljbffr