Senior Software Engineer

Ilensys Technologies; Hyderabad; On-site; INR 3,500,000 - 6,500,000; Full time

Job summary

Ilensys Technologies in Hyderabad, India is seeking an experienced Senior Software Engineer (Backend) to design, build, and optimize enterprise-grade backend services using Python. You will own API design, microservices, and backend architecture, while collaborating with product, QA, frontend, DevOps, and global teams to deliver scalable solutions.

Ideal candidates have 8+ years of backend experience, strong REST API skills with FastAPI/Uvicorn, and a solid foundation in security, CI/CD, and

Qualifications

• 8+ years of backend development experience.
• Strong Python backend development experience.
• Experience building REST APIs with FastAPI and Uvicorn.
• Knowledge of microservices, distributed systems and API-first design.
• Experience with asynchronous programming and DI.
• Experience with CI/CD pipelines and DevOps practices.
• Proficient in SQL/NoSQL data modeling and query optimization.
• Familiarity with OAuth2, JWT, OpenID Connect and secure coding practices.

Responsibilities

• Own design, development, testing, and delivery of backend components.
• Collaborate with PM, QA, frontend, DevOps, and global teams to ship solutions.

Skills

Python backend

REST APIs

Microservices

Distributed systems

API-first design

BFF architecture

Asynchronous programming

Dependency injection

API validation

Exception handling

Performance optimization

CI/CD pipelines

SQL databases

NoSQL databases

Data modeling

Query optimization

Debugging

Analytical skills

Problem solving

OAuth2/JWT

Secure coding

OWASP

Job description

SENIOR SOFTWARE ENGINEER- BACKEND DEVELOPMENT

Location: Hyderabad, India

Experience: 8+ Years (Looking for Immediate Joiners)

Employment Type: Full-Time

Nature of Assignment

• We are looking for an experienced Senior Software Engineer Backend Development to develop and enhance enterprise-grade scientific and workflow-driven software solutions. The role requires strong technical expertise in Python-based backend development, API design, microservices, and modern software engineering practices.


• As a senior member of the engineering team, you will own the design, development, testing, and delivery of complex software components while collaborating closely with Product Management, Quality Engineering, Front-End Development, DevOps, and global engineering teams. The ideal candidate is passionate about building high-quality software, solving complex technical problems, and delivering reliable, maintainable, and scalable solutions.

Preferred candidate profile

• Strong hands-on software development experience in Python backend development.


• Extensive experience developing REST APIs using FastAPI, Uvicorn, and modern Python ecosystem frameworks.


• Strong understanding of microservices, distributed systems, API-first design, and Backend-for-Frontend (BFF) architecture.


• Solid experience in asynchronous programming, dependency injection, API validation, exception handling, and performance optimization


• Experience building and maintaining CI/CD pipelines using modern DevOps tools and automated release processes.


• Experience with SQL /NoSQL databases, data modeling, query optimization, and backend data management


• Strong debugging, analytical, and problem-solving skills with the ability to diagnose issues across applications, infrastructure, and deployment layers.


• knowledge of web application security including OAuth2, JWT, OpenID Connect, SSO, secure coding practices, OWASP principles, and vulnerability remediation.