Principal Software Engineer (9+ yrs Python + Django + LLM)

Job description

About DoctusTech

DoctusTech is a fast-growing technology company focused on driving innovation in the US Healthcare domain. We build impactful AI-driven solutions that solve real-world problems for our clients. Our team is agile, collaborative, and passionate about technology, and we're looking for strong engineering leaders who thrive in a high-ownership environment.

Job Summary

We are looking for a highly experienced Principal Software Engineer with 10+ years of hands-on backend engineering experience in Python ecosystems. This is a pure IC (Individual Contributor) role focused on architecture, hands-on coding, scalability, and building next-generation AI-powered systems.

The ideal candidate must have strong expertise in Python, Django, FastAPI, distributed backend systems, and Agentic AI/LLM-based application development. You will work closely with product and engineering teams to design, develop, and scale intelligent healthcare solutions.

Key Responsibilities

1. Design, develop, and scale high-performance backend systems using Python, Django, and FastAPI.

2. Build secure, scalable, and production-grade RESTful APIs and microservices.

3. Lead architecture decisions and implement complex technical solutions.

   1. Develop AI-powered applications leveraging Agentic AI, LLMs, RAG pipelines, and orchestration frameworks.
   2. Write clean, maintainable, reusable, and testable production-quality code.
   3. Optimize application performance, reliability, scalability, and security.

4. Mentor engineering teams through technical leadership and best coding practices.

5. Collaborate with cross-functional teams in an agile development environment.

6. Drive innovation and evaluate emerging AI technologies/frameworks.

7. Participate in code reviews, debugging, and system design discussions.

Required Skills

● 10+ years of software development experience.

● Strong hands-on coding expertise in Python.

● Deep expertise in Django and FastAPI.

● Experience building scalable backend architectures and REST APIs.

● Strong understanding of distributed systems and microservices architecture.

● Hands-on experience with Agentic AI, Generative AI, LLM applications, RAG pipelines, LangChain, CrewAI, AutoGen, or similar frameworks.

● Strong understanding of AI orchestration and prompt engineering concepts.

● Expertise with PostgreSQL/MySQL and database optimization.

● Strong knowledge of Django ORM, SQL queries, and performance tuning.

● Experience with cloud platforms and deployment practices.

● Strong debugging, analytical, and problem-solving skills.

● Deep understanding of system design, design patterns, data structures, and OOP concepts.

● Familiarity with Linux environments and DevOps fundamentals.

Preferred Qualifications

● Experience in US Healthcare domain, EHR/EMR, HL7, or FHIR integrations is a plus.

● Experience working in high-scale SaaS product companies.

● Strong communication and stakeholder management skills.

● Ability to work independently in a remote environment. Candidate Requirements

● Own laptop/system (minimum 8GB RAM and i5 processor or above)

● Stable internet connectivity/Wi-Fi

● Power backup during outages