Synetrax Technology
AI

Senior AI Engineer

Synetrax Technology ·

Actively hiring Posted 4 days ago

Role overview

Senior AI Engineer (Full-Stack) — Detailed Job Description

Position: Senior AI Engineer (Full-Stack)

Location: Remote (10 Hours/ Day)

Experience Required: 5+ years Python engineering, 3+ years multi-agent systems

Type: Contract

ROLE SUMMARY

We are seeking a highly experienced Senior AI Engineer to lead the development of

production-grade multi-agent AI systems, backend services, LLM orchestration, and full-stack. AI-driven product experiences. The ideal candidate possesses deep technical expertise across. Python backends, multi-agent workflows, LLM integrations, RAG pipelines, multimodal processing, and frontend engineering.

What you'll work on

● Design and implement scalable multi-agent architectures: supervisor patterns,

orchestrators, shared memory/state, workflow dependencies, checkpointing, retries,

and debuggability.

● Build agent-driven coding workflows with hooks, background tasks, and toolchains

integrating AI coding tools.

● Develop high-performance Python backend services using FastAPI, async

concurrency, typed schemas, and secure API gateways.

● Build distributed task processing pipelines with Celery + Redis (or equivalents) for

long-running AI workloads.

● Integrate multiple LLM providers with routing, fallback logic, streaming, cost

optimization, tool/function calling, and JSON-structured output handling.

● Build evaluation pipelines for LLM-as-judge, human-in-loop reviews, automated prompt

regression tests, and iterative prompt optimization workflows.

● Develop agentic search and crawling workflows using

Playwright/Selenium/Firecrawl with LLM-ready content extraction and error

handling.

● Implement production-grade RAG pipelines: vector DBs, hybrid search,

chunking, metadata/RBAC tagging, embedding optimization, and retrieval

policy design.

● Build real-time streaming infrastructure using SSE/WebSockets, Redis caching

layers, pre-computation and rate-limiting strategies.

● Work on PostgreSQL schema design, DynamoDB key-value workflows, and ClickHouse

analytics setups for event and BI use cases.

● Implement multimodal AI features: Whisper STT, TTS, OCR, vision models, document

parsing, and image generation workflows.

● Support full-stack development in React/Next.js, TypeScript, Tailwind, real-time chat

interfaces, and browser extension workflows.

● Establish DevOps best practices using Docker, CI/CD pipelines, monitoring

dashboards, and containerized deployments.

MUST-HAVE SKILLS

● 5+ years Python (async, concurrency, FastAPI, Pydantic).

● 3+ years multi-agent workflow development (LangGraph or equivalent).

● Strong expertise in Celery + Redis or equivalent distributed compute frameworks.● Multi-LLM integration experience across OpenAI, Anthropic, Google, xAI.

● Proven RAG, vector search, embedding pipelines, and retrieval implementation experience.

● Strong background in web crawling/automation using Playwright/Selenium.

● Experience in building streaming endpoints and caching layers.

● Solid data engineering experience with Postgres, DynamoDB, and ClickHouse.

● Frontend engineering in React/Next.js + TypeScript.

NICE-TO-HAVE SKILLS

● Experience with Whisper, ElevenLabs, multimodal vision systems.

● Experience with GEPA-style prompt optimization loops.

● Experience with browser extension development for AI product workflows.

● Kubernetes familiarity and advanced MLOps methodologies.

SUCCESS METRICS

● High reliability multi-agent workflows with automated recoverability.

● Efficient and deterministic RAG retrieval systems.

● Low-latency streaming architecture supporting real-time AI UI.

● Successful multi-LLM orchestration with cost reduction and fallback stability.

● Production-ready evaluation and regression testing frameworks.

SUBMISSION REQUIREMENTS

● CVs with highlighted relevant project work.

● Examples or case studies of multi-agent systems built.

● Details on LLM integration experience

Job Type: Contract

Pay: From $1,106.00 per month

Work Location: Remote

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