DAS Labs
Senior Python Engineer (Latin America Candidates Only) — AI Voice & Agentic Syst
DAS Labs, Rancho Cucamonga, California, United States, 91739
Senior Python Engineer (Latin America Candidates Only) — AI Voice & Agentic Systems (Remote)
Direct message the job poster from DAS Labs
About Aptitude AI / DAS Labs We build production‑grade AI agents (voice + chat) that run in the real world—powering executive assistants (“Vicky”), ops/task automations (“Tim”), and bespoke client deployments. Expect realtime pipelines, measurable outcomes (latency/containment/CSAT), and security‑minded engineering.
The role Own backend Python services that power realtime AI voice and agent experiences. You’ll design APIs and event streams, integrate ASR/TTS/LLM providers, implement tool‑calling with
Model Context Protocol (MCP) , and ship reliable systems used by paying customers.
What you’ll do
Build & maintain Python services (FastAPI/asyncio) for low‑latency voice/chat agents.
MCP : build/extend MCP servers & clients to expose tools (databases, CRMs, webhooks, n8n), with per‑tenant auth and capability scoping.
Orchestrate LLMs (OpenAI/Anthropic) with guardrails/evals and RAG (Pinecone/Weaviate/Qdrant).
Design evented pipelines (WebSockets, webhooks, queues) and ship to AWS/GCP with Docker & CI/CD.
Instrument everything (logs/traces/metrics via OpenTelemetry), run A/B tests, keep latency/error budgets green.
Collaborate with product to scope MVPs, iterate fast, and harden to stable releases.
Occasional ML/CV work (bonus):
OCR/vision pipelines, model inference services, and data/labeling workflows.
What you bring
4–8+ years of production Python (FastAPI/Starlette or Flask + asyncio), strong testing (pytest) and software design.
Proven experience shipping commercial AI agents
(voice and/or chat) used by real customers.
Hands‑on with
MCP
(building tools/servers or integrating clients) and
LLM function/tool calling
in production.
Cloud/DevOps: Docker, CI/CD, basic IaC; comfortable with tracing and performance tuning.
Communication: clear written/spoken English (B2+), collaborative, low‑ego.
Nice to have / Bonus points
Vapi experience for voice agents (not required).
Spanish or Portuguese; familiarity with LATAM markets and multilingual agents.
Why Aptitude AI
Real impact:
your code powers live agents answering real customers.
Product + services:
shape Vicky/Tim while delivering high‑visibility client wins.
Remote‑first
across LATAM with USD‑denominated compensation.
Location & hours:
Remote in Latin America with ≥4 hours overlap to 9 am–5 pm Pacific.
Compensation:
Competitive (USD). Contract‑to‑hire or full‑time.
Our hiring process
English screening test:
verifies B2+ proficiency (written & spoken).
(Optional)
Practical exercise
or code walk‑through from past work.
How to apply Apply on LinkedIn (“Easy Apply”) and include:
A short note on your most significant production agent (what it did, tools/ MCP
usage, scale, key metrics),
Availability & preferred arrangement (contract/full‑time).
Seniority level Mid‑Senior level
Employment type Contract
Job function Engineering and Information Technology
Industries Software Development
#J-18808-Ljbffr
About Aptitude AI / DAS Labs We build production‑grade AI agents (voice + chat) that run in the real world—powering executive assistants (“Vicky”), ops/task automations (“Tim”), and bespoke client deployments. Expect realtime pipelines, measurable outcomes (latency/containment/CSAT), and security‑minded engineering.
The role Own backend Python services that power realtime AI voice and agent experiences. You’ll design APIs and event streams, integrate ASR/TTS/LLM providers, implement tool‑calling with
Model Context Protocol (MCP) , and ship reliable systems used by paying customers.
What you’ll do
Build & maintain Python services (FastAPI/asyncio) for low‑latency voice/chat agents.
MCP : build/extend MCP servers & clients to expose tools (databases, CRMs, webhooks, n8n), with per‑tenant auth and capability scoping.
Orchestrate LLMs (OpenAI/Anthropic) with guardrails/evals and RAG (Pinecone/Weaviate/Qdrant).
Design evented pipelines (WebSockets, webhooks, queues) and ship to AWS/GCP with Docker & CI/CD.
Instrument everything (logs/traces/metrics via OpenTelemetry), run A/B tests, keep latency/error budgets green.
Collaborate with product to scope MVPs, iterate fast, and harden to stable releases.
Occasional ML/CV work (bonus):
OCR/vision pipelines, model inference services, and data/labeling workflows.
What you bring
4–8+ years of production Python (FastAPI/Starlette or Flask + asyncio), strong testing (pytest) and software design.
Proven experience shipping commercial AI agents
(voice and/or chat) used by real customers.
Hands‑on with
MCP
(building tools/servers or integrating clients) and
LLM function/tool calling
in production.
Cloud/DevOps: Docker, CI/CD, basic IaC; comfortable with tracing and performance tuning.
Communication: clear written/spoken English (B2+), collaborative, low‑ego.
Nice to have / Bonus points
Vapi experience for voice agents (not required).
Spanish or Portuguese; familiarity with LATAM markets and multilingual agents.
Why Aptitude AI
Real impact:
your code powers live agents answering real customers.
Product + services:
shape Vicky/Tim while delivering high‑visibility client wins.
Remote‑first
across LATAM with USD‑denominated compensation.
Location & hours:
Remote in Latin America with ≥4 hours overlap to 9 am–5 pm Pacific.
Compensation:
Competitive (USD). Contract‑to‑hire or full‑time.
Our hiring process
English screening test:
verifies B2+ proficiency (written & spoken).
(Optional)
Practical exercise
or code walk‑through from past work.
How to apply Apply on LinkedIn (“Easy Apply”) and include:
A short note on your most significant production agent (what it did, tools/ MCP
usage, scale, key metrics),
Availability & preferred arrangement (contract/full‑time).
Seniority level Mid‑Senior level
Employment type Contract
Job function Engineering and Information Technology
Industries Software Development
#J-18808-Ljbffr