Senior Backend Engineer

Designation: Senior Backend Engineer

Preferred Experience: 4+ Years Job Summary: We are looking for a highly skilled Senior Backend Engineer with strong expertise in Python and backend frameworks such as FastAPI and Django. The ideal candidate should have experience in designing scalable backend architectures, developing high-performance APIs, and working on modern web applications. While the primary focus of this role is backend development, the candidate should also have working experience with React.js and be comfortable collaborating on full-stack features when required.

Key Responsibilities:

• Design, develop, and maintain scalable backend applications using Python.
• Build high-performance RESTful APIs using FastAPI and Django.
• Develop and optimize microservices and backend architecture.
• Collaborate with frontend developers and contribute to React-based features when needed.
• Implement secure, scalable, and maintainable application logic.
• Optimize application performance, database queries, and server-side processes.
• Work with relational and non-relational databases.
• Participate in system design discussions, architecture planning, and code reviews.
• Integrate third-party APIs and services.
• Ensure code quality through testing, debugging, and documentation.
• Work closely with DevOps teams for deployment and CI/CD processes.

Required Skills & Qualifications

• Strong hands-on experience in Python programming.
• Excellent experience with FastAPI and Django frameworks.
• Good understanding of backend architecture and scalable system design.
• Experience in building and consuming RESTful APIs.
• Working knowledge of React.js for frontend integration and feature development.
• Strong understanding of relational databases like PostgreSQL/MySQL.
• Experience with database optimization and query tuning.
• Familiarity with Git and version control practices.
• Strong problem-solving and debugging skills.
• Good communication and collaboration abilities.

Company Overview: Aventior is a leading provider of innovative, end-to-end technology solutions, empowering businesses across diverse industries to solve complex challenges and accelerate growth. We harness the power of cutting-edge technologies such as artificial intelligence (AI), machine learning (ML), MLOps, and DevOps to build scalable, future-ready solutions that drive measurable business outcomes. Our expertise extends across the entire data lifecycle. We offer comprehensive data development and management services, including cloud data architecture, universal data models, Data Transformation & ETL, data lakes, user management, Analytics & visualization, and automated data capture for unstructured and semi-structured sources such as scanned documents. These capabilities enable organizations to unlock the full value of their data and make faster, more informed decisions. At Aventior, our strength lies in combining deep industry expertise with advanced technical capabilities. Our teams work closely with clients to design and deliver tailored solutions that align with their unique business needs—whether it’s optimizing operations, enhancing customer experiences, or driving strategic decision-making. We bring a holistic, cross-industry perspective to every engagement, supported by a strong foundation in design, implementation, innovation, migration, and ongoing support. With a global delivery model, a multi-country presence, and a team of highly skilled professionals, Aventior is well-positioned to deliver consistent, high-quality outcomes at scale.