Backend Developer

About Persistent We are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients anticipate what’s next. Our offerings and proven solutions create a unique competitive advantage for our clients by giving them the power to see beyond and rise above. We work with many industry-leading organizations across the world, including 20 Fortune 50 companies and 4 of the 5 top banks in both the US and India, and numerous innovators across the healthcare ecosystem. Our disruptor’s mindset, commitment to client success, and agility to thrive in the dynamic environment have enabled us to sustain our growth momentum. Persistent has been recognized across top industry platforms for innovation, leadership, and inclusion. We reported $1,654.4M FY26 revenue with 17.4% Y-o-Y growth. We have delivered 24 sequential quarters of growth with $436.0M in Q4 FY26 revenue, up 3.2% Q-o-Q and 16.2% Y-o-Y growth. Our 27,500+ global team members, located in 18 countries, have been instrumental in helping the market leaders transform their industries. We have been recognized as the Fastest Growing IT Services Brand Globally in the 2026 Brand Finance IT Services 25 Report. We named a Leader in the Everest Group Private Equity (PE) Services PEAK Matrix® Assessment 2026 and Software Product Engineering PEAK Matrix® Assessment 2026.

About Position We are looking for a highly skilled Backend Developer with strong expertise in Python and modern AI frameworks. The role involves building scalable backend systems, developing RAG pipelines, and orchestrating AI-driven workflows across enterprise platforms in a fast-paced and collaborative environment.

• Role: Backend Developer (Python, LangChain, LlamaIndex, RAG)
• Location: Pune
• Experience: 5 to 8 years
• Job Type: Full Time Employment

What You'll Do

• Design, develop, and maintain scalable backend services and RESTful APIs using Python frameworks like FastAPI
• Build and optimize Retrieval-Augmented Generation (RAG) pipelines
• Work with LangChain and LlamaIndex to develop AI-powered applications
• Integrate vector databases such as Milvus for efficient data retrieval
• Orchestrate workflows across enterprise systems including Dataiku DSS
• Collaborate with cross-functional teams to deliver end-to-end AI solutions
• Ensure high performance, scalability, and responsiveness of backend systems

Expertise You'll Bring

• B.Tech/B.E with 5–8 years of relevant backend development experience
• Strong hands-on expertise in Python for backend services
• Experience building scalable APIs and microservices architecture
• Hands-on experience with LangChain and LlamaIndex frameworks
• Solid understanding and implementation of RAG pipelines
• Experience working with vector databases such as Milvus
• Exposure to enterprise platform integrations like Dataiku DSS
• Strong knowledge of RESTful API design and best practices
• Working knowledge of SQL and PL/SQL
• Familiarity with Agile methodologies and collaborative development
• Strong problem-solving and communication skills
• Experience with AI Agents and Agentic AI systems
• Integration with LLM providers (OpenAI, Anthropic, etc.)
• Knowledge of MCP, multi-agent architectures, and tool-calling frameworks
• Experience in vector search optimization and hybrid search
• Understanding of prompt engineering and optimization
• Exposure to CI/CD tools like Jenkins, GitLab
• Experience with Docker, Kubernetes
• Knowledge of cloud platforms (AWS, Azure, GCP)

Benefits

• Competitive salary and benefits package
• Culture focused on talent development with quarterly growth opportunities and company-sponsored higher education and certifications
• Opportunity to work with cutting-edge technologies
• Employee engagement initiatives such as project parties, flexible work hours, and Long Service awards
• Annual health check-ups
• Insurance coverage: group term life, personal accident, and Mediclaim hospitalization for self, spouse, two children, and parents

Values-Driven, People-Centric & Inclusive Work Environment Persistent is dedicated to fostering diversity and inclusion in the workplace. We invite applications from all qualified individuals, including those with disabilities, and regardless of gender or gender preference. We welcome diverse candidates from all backgrounds.

• We support hybrid work and flexible hours to fit diverse lifestyles.
• Our office is accessibility-friendly, with ergonomic setups and assistive technologies to support employees with physical disabilities.
• If you are a person with disabilities and have specific requirements, please inform us during the application process or at any time during your employment

Let’s unleash your full potential at Persistent - persistent.com/careers “Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind.” Python,Langchain,Dataiku