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Python Full Stack Engineer

Apexon
Department:Backend Developer
Type:REMOTE
Region:USA
Location:United States
Experience:Mid-Senior level
Estimated Salary:$120,000 - $180,000
Skills:
PYTHONFASTAPIFLASKDJANGOAI/MLLLMSRAGREACTNEXT.JSTYPESCRIPTAWSAZUREGCPDOCKERKUBERNETESMONGODBPOSTGRESQLDYNAMODBSQLNOSQL
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Job Description

Posted on: December 16, 2025

AI / Backend Engineering

  • Develop and maintain Python-based backend services and APIs using frameworks like FastAPI, Flask, or Django.
  • Build and integrate AI/ML models, including LLMs, RAG systems, embeddings, and vector databases.
  • Implement agentic AI workflows that can call tools, orchestrate tasks, and automate actions.
  • Build scalable data pipelines for model training and inference.
  • Optimize models for performance, latency, and cost.

Frontend Engineering

  • Develop responsive UI using React, Next.js, or similar frameworks.
  • Integrate frontend with backend AI services and APIs.
  • Build dashboards, chat interfaces, and workflow screens interacting with AI outputs.

Full-Stack Ownership

  • Translate business requirements into technical design and working software.
  • Own the end-to-end delivery of features from design to production.
  • Build reusable components and maintain coding best practices.
  • Collaborate closely with product, design, and data/ML teams.

DevOps / Cloud

  • Deploy full-stack applications on AWS/Azure/GCP.
  • Implement CI/CD pipelines (GitHub Actions, Jenkins, GitLab CI).
  • Work with containerization technologies like Docker and Kubernetes.
  • Manage vector databases (Pinecone, FAISS, Chroma) and document stores (MongoDB, PostgreSQL, DynamoDB).

Required Skills

  • Strong proficiency in Python for backend and AI development.
  • Experience with FastAPI / Flask / Django.
  • Experience with c#.
  • Hands-on experience with LLMs, RAG, embedding models, and AI agent frameworks.
  • Excellent understanding of REST APIs, microservices, and distributed systems.
  • Frontend experience with React, Next.js, Typescript, HTML/CSS.
  • Familiarity with cloud services such as AWS Lambda, S3, EC2, API Gateway, Bedrock, SageMaker, or Azure OpenAI.
  • Experience with SQL and NoSQL databases.
  • Strong debugging, optimization, and production support skills.

Preferred Skills

  • Experience with vector databases (Pinecone, FAISS, Weaviate).
  • Knowledge of LangChain, LlamaIndex, or OpenAI function-calling agents.
  • Experience building chatbots or agentic AI solutions.
  • Knowledge of MLOps, monitoring tools, and observability.
  • Familiarity with event-driven architectures (Kafka, Kinesis).
  • Basic understanding of UI/UX principles.

Education & Experience

  • Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field (preferred).
  • 3–8+ years of experience in software engineering, including at least 1–2 years in AI/ML or LLM-based application development.
Originally posted on LinkedIn

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