Senior AI/Backend Engineer (Python, ML & DevOps)

Job Description: We are seeking an experienced Senior AI/Backend Engineer based in Pakistan to architect, deploy, and scale robust backend services integrated with modern AI/ML systems.

Because our core team operates in the United States, significant overlap with US business hours (EST/PST) is required. You will actively participate in daily standups, architectural discussions, sprint demos, and live pair programming. Exceptional, fluent spoken and written English is a strict, non-negotiable requirement.

Key Responsibilities

• Architect, build, and maintain production-grade backend APIs and microservices.
• Integrate and deploy machine learning models, LLMs, and vector search pipelines into live applications.
• Design CI/CD workflows and manage cloud infrastructure across development, staging, and production environments.
• Optimize latency, throughput, and reliability of high-volume distributed systems.
• Collaborate daily in real-time meetings with US-based product managers, frontend engineers, and stakeholders.

Required Qualifications

• Experience: 5+ years of professional backend engineering experience with hands-on AI/ML integration.
• Communication: Fluent verbal and written English (C1/C2 level). Must articulate technical concepts clearly over live video calls without hesitation.
• Schedule Availability: Able to consistently work during US daytime hours (EST/PST) for team syncs, handoffs, and live reviews.
• Backend: Advanced proficiency in Python (FastAPI, Django, Flask) or modern Go/Node.js.
• AI / ML: Practical experience with LLM orchestration (LangChain, LlamaIndex), foundational APIs, embeddings, and vector databases (Pinecone, Weaviate, pgvector, or Milvus).
• DevOps & Cloud: Hands-on experience with Docker, Kubernetes, CI/CD pipelines (GitHub Actions, GitLab CI), and major cloud platforms (AWS, GCP, or Azure).
• Databases: Deep knowledge of PostgreSQL, Redis, and schema design for transactional and analytical workloads.
• System Design: Solid understanding of event-driven architectures (Kafka, RabbitMQ), RESTful design, and gRPC.

Preferred Qualifications

• Experience deploying self-hosted open-source models (vLLM, Ollama, Triton Inference Server).
• Familiarity with infrastructure-as-code tools (Terraform, Pulumi).
• Prior track record working remotely with US-based engineering teams.

What We Offer

• Competitive salary benchmarked to top-tier international remote rates (paid in USD).
• 100% remote working environment.
• Paid annual leave and national holidays.
• Hardware/workspace setup allowance.
• Clear career progression paths in a fast-paced environment.

Job Specification: Strong professional Python development skills, including experience building backend services and APIs.

Practical understanding of machine-learning concepts and experience integrating models or AI services into software products.

Ability to write maintainable, tested code and troubleshoot complex application or production issues.

Experience with relational or NoSQL databases, data handling, and service-to-service integrations.

Working knowledge of DevOps practices such as CI/CD, automated testing, containers, deployment, and monitoring.

Familiarity with cloud infrastructure and infrastructure-as-code concepts is beneficial.

Sound understanding of API design, security, performance, observability, and software architecture.

Clear communication, collaborative problem-solving, and the ability to take ownership of work through delivery.