Software Engineer - Backend
First seen by Alion on Sep 12, 2026.
Job Description:
We are looking for a skilled Software Engineer - Python Backend to design, develop, and maintain scalable backend applications and services. The role involves building robust APIs, developing backend components, optimizing application performance, and collaborating with cross-functional engineering teams to deliver reliable and high-quality software solutions.
Key Responsibilities:
1. Backend Development:
- Design, develop, and maintain scalable backend applications using Python.
- Build robust, secure, and high-performance backend services and APIs.
- Develop reusable and maintainable code following software engineering best practices.
- Work on application architecture, database integration, and service development.
- Debug and resolve application issues across development, testing, and production environments.
2. API & Service Development:
- Design and develop RESTful APIs and backend services.
- Integrate internal and external APIs and third-party services.
- Implement authentication, authorization, validation, logging, and error handling.
- Optimize APIs for scalability, performance, and reliability.
- Ensure API documentation and coding standards are maintained.
3. Database & Performance Optimization:
- Work with relational and/or NoSQL databases to design efficient data models.
- Write optimized queries and improve database performance.
- Identify application bottlenecks and implement performance improvements.
- Ensure data consistency, security, and reliability across backend services.
4. Engineering Excellence:
- Participate in code reviews and contribute to improving engineering standards.
- Write unit and integration tests to ensure application quality.
- Troubleshoot production issues and perform root-cause analysis.
- Follow Agile development practices and contribute to sprint planning and technical discussions.
- Contribute to CI/CD, automation, monitoring, and deployment processes.
5. Cross-Functional Collaboration:
- Collaborate with frontend engineers, QA, DevOps, product managers, and architects.
- Translate business and product requirements into scalable technical solutions.
- Participate in architecture and design discussions.
- Provide technical estimates and contribute to project planning.
- Mentor junior engineers and contribute to knowledge-sharing initiatives.
Required Skills & Qualifications:
- 4 - 8 years of experience in software development / backend engineering.
- Strong hands-on experience with Python.
- Experience with Python frameworks such as Django, Flask, or FastAPI.
- Strong understanding of REST APIs, microservices, and backend architecture.
- Good knowledge of SQL and relational databases such as PostgreSQL or MySQL.
- Exposure to NoSQL databases such as MongoDB, Redis, or similar technologies.
- Experience with Git, CI/CD, testing frameworks, and software development lifecycle.
- Strong understanding of object-oriented programming, data structures, algorithms, and design principles.
- Experience working in Agile/Scrum development environments.
- Good problem-solving and analytical skills.
Preferred Skills:
- Exposure to AWS/Azure/GCP or other cloud platforms.
- Experience with Docker and Kubernetes.
- Understanding of message queues such as Kafka or RabbitMQ.
- Experience developing distributed and high-volume applications.
- Exposure to system design and scalable architecture.
- Familiarity with observability, logging, monitoring, and performance engineering.
Skills
Python, Django, Flask, REST API, PostgreSQL, MySQL, MongoDB, Kafka, Backend Architecture, FastAPI, Microservices Architecture