Senior Backend Developer at Trellance LLC – Bangalore

Job Title: Senior Backend Developer

Department: ProBridge

Reporting to: Manager

Company Detail

CU Rise Analytics Pvt. Ltd. is a wholly owned subsidiary of Trellance, Inc. CU Rise Analytics is an offshore development centre of Trellance Inc., working collaboratively to offer comprehensive solutions for data analytics, technology and talent to allow our credit union clients to provide high quality service to their members and remain competitive.  Our core expertise lies in data science and technology, encompassing data analytics, predictive modelling, business intelligence, and technology services.

Trellance Cooperative Holdings, Inc. is a credit union cooperative and leading technology partner for credit unions. Its companies – consisting of Rise Analytics, ProBridge, Optiri and CUDX – provide innovative technology solutions for credit unions to increase efficiency, manage risk and improve the member experience. Trellance’s mission is to make sure credit unions have access to the tools and resources they need to grow, enhance member value and remain competitive in a rapidly evolving financial landscape.

Learn more at Trellance.com

Summary:

We’re seeking an experienced Senior Backend Developer to join our engineering team. In this role, you’ll design, develop, and maintain robust, scalable, and performant backend services using Fast API, SQL Alchemy, and PostgreSQL. You’ll collaborate with cross-functional teams to implement business logic, API endpoints, and database solutions while adhering to our comprehensive development standards.

Key Responsibilities:

• Design and develop RESTful APIs using Fast API following our established API standards and best practices.

• Implement robust data models and database interactions using SQL Alchemy and PostgreSQL.

• Develop and maintain core business logic in service and repository layers.

• Write comprehensive unit, integration, and end-to-end tests for all code.

• Create clear, detailed documentation for code, APIs, and architectural decisions.

• Collaborate with frontend developers to define API contracts and integration points.

• Implement and maintain high availability patterns and performance optimizations.

• Participate in code reviews, providing constructive feedback to peers.

• Troubleshoot and resolve complex technical issues across the application stack.

• Contribute to architectural decisions and help evolve our technology standards.

Required Skills and Experience:

• 5+ years of professional experience in backend development.

• Strong proficiency in Python (3.9+) with solid understanding of type hints, async/await, and modern

Python features.

• 2+ years of production experience with Fast API hosted on Azure Cloud.

• Proficiency with relational databases, particularly PostgreSQL.

• Working knowledge of SQL Alchemy.

• Experience implementing RESTful APIs and understanding of API design principles.

• Strong understanding of software testing approaches (unit, integration, end-to-end).

• Familiarity with containerization (Docker) and container orchestration.

• Experience with Git version control and CI/CD pipelines.

• Knowledge of secure coding practices and common security vulnerabilities.

Preferred Qualifications:

• Experience with Pydantic for data validation and schema definition.

• Familiarity with PostgreSQL advanced features (JSONB, full-text search, etc.).

• Experience with asynchronous programming in Python.

• Experience with Uvicorn, an ASGI web server, for Python.

• Understanding of infrastructure as code (Terraform, AWS CloudFormation).

• Experience with Kubernetes in production environments.

• Understanding of event-driven architecture and message brokers.

• Exposure to microservices architecture patterns.

• Experience with monitoring and observability tools.

• Contributions to open-source projects.

Technical Competencies:

• Python 3.9+ features and language constructs.

• Type hints and static type checking with mypy.

• Error handling and exception management.

• Asynchronous programming with asyncio.

• Documentation using Google-style docstrings.

Web Frameworks and APIs:

• Fast API application development and organization.

• API design and RESTful principles.

• Request validation and response formatting.

• Authentication and authorization implementation.

• Performance optimization techniques.

Database:

• PostgreSQL schema design and optimization.

• SQL Alchemy ORM and Core.

• Query optimization and performance tuning.

• Transaction management.

• Database migrations with Alembic.

Testing:

• Test-driven development practices.

• Unit testing with pytest.

• Integration testing for APIs and databases.

• Mocking and fixtures.

• Code coverage analysis.

DevOps and Infrastructure:

• Docker containerization.

• CI/CD pipeline configuration.

• Infrastructure as code concepts.

• Monitoring and logging implementation.

• High availability patterns.

Development Standards Expertise:

The ideal candidate will demonstrate an understanding of and commitment to:

• Domain-driven design principles

• API-first development approach

• Test-driven development

• Security by design

• Continuous delivery practices

• Comprehensive documentation

• Code quality and maintainability

• Performance optimization

• Error handling best practices