

Full-Stack Developer / DevOps Engineer – AI & Secure Infrastructure
⭐ - Featured Role | Apply direct with Data Freelance Hub
This role is for a Full-Stack Developer / DevOps Engineer focusing on AI & secure infrastructure, offering a 3-month remote contract. Requires expertise in Docker, HashiCorp Vault, Python, React, and banking security standards. Pay rate: "W2 only."
🌎 - Country
United States
💱 - Currency
$ USD
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💰 - Day rate
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🗓️ - Date discovered
July 29, 2025
🕒 - Project duration
3 to 6 months
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🏝️ - Location type
Remote
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📄 - Contract type
W2 Contractor
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🔒 - Security clearance
Unknown
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📍 - Location detailed
United States
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🧠 - Skills detailed
#Langchain #DevOps #AI (Artificial Intelligence) #Vault #PCI (Payment Card Industry) #REST (Representational State Transfer) #Automation #Linux #AWS (Amazon Web Services) #Azure #API (Application Programming Interface) #Python #Storage #REST API #Deployment #Hugging Face #Security #Databases #ChatGPT #Flask #Docker #Cloud #Web Development #React #GCP (Google Cloud Platform) #FastAPI #Server Administration #Data Security
Role description
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100% Remote
Need to work in PST times
Initial for 3 months, need to be on w2 only
The Opportunity
We are seeking a Full-Stack Developer with strong DevOps and AI integration skills to build, deploy, and secure end-to-end applications for banking clients. This role requires expertise in modern web development, containerization, on-premises Docker environments, secure infrastructure (e.g., HashiCorp Vault), and AI/LLM-based architectures (including RAG pipelines). The ideal candidate will have hands-on technical expertise, strong security awareness, and the ability to communicate complex solutions to clients.
Key Responsibilities
Infrastructure & Server Setup
Prepare hardware and configure Linux-based and Windows-based on-prem servers (small to medium complexity)
Install, configure, and run Docker in on-premises environments, including Docker Compose for multi-service setups
Deploy and configure Apache/Nginx within containerized environments
Security & Secrets Management
Deploy and configure HashiCorp Vault on premises (medium to large complexity)
Set up secrets and certificates, enable encryption, and configure secure access
Ensure client applications can securely pull secrets from Vault
AI/LLM Integration
Set up LLM environments (low to medium complexity)
Build knowledge bases using vector databases (Postgres, Weaviate, or similar)
Implement document ingestion pipelines (document parsing, chunking, embeddings generation, and storage)
RAG (Retrieval-Augmented Generation) Orchestration
Develop inference pipelines using LangChain or n8n
Implement retrieval, augmentation, and generation workflows
Create API contracts for frontend-backend integration
Backend & API Development
Initialize and build Python/FastAPI projects
Expose RAG pipeline endpoints through secure REST APIs
Frontend Development
Create React SPA applications with chat-like UIs (ChatGPT-style interfaces)
Integrate frontend with backend APIs based on defined contracts
Deployment & Routing
Configure Apache/Nginx reverse proxy rules for routing frontend and backend traffic
Client Interaction
Present technical solutions, architecture diagrams, and deployment strategies to clients
Translate complex technical concepts into clear, non-technical language
Collaborate with stakeholders to align solutions with business and security requirements
Required Skills & Qualifications
Technical Expertise
Strong experience with Docker (on-premises), Linux server administration, and container orchestration
Hands-on experience with HashiCorp Vault (secrets engines, policies, and client integrations)
Proficiency in Python (FastAPI, Flask) and React.js
Understanding of vector databases (Weaviate, Pinecone, or Chroma) and RAG pipelines
Familiarity with LangChain or workflow automation tools like n8n
Web servers: Nginx/Apache reverse proxy and SSL/TLS configuration
Knowledge of document parsing (PDF, CSV, text) and embedding models (OpenAI, Hugging Face)
Security Awareness
Strong understanding of data security, encryption, and certificate management
Awareness of banking security standards (e.g., SOC2, PCI-DSS basics)
Ability to design and review secure APIs and infrastructure
Soft Skills
Excellent presentation skills for client demos and solution walkthroughs
Ability to document and explain technical architectures clearly
Collaborative mindset for cross-functional teamwork
Nice-to-Have Skills
Exposure to GPU-based LLM hosting (e.g., Hugging Face models)
Familiarity with cloud services (AWS, GCP, Azure) and hybrid on-prem/cloud setups
If you are interested or have any references please share resume at mukul@brightmindsol.com.