Python Developer

India | Dec. 15, 2025

Report as Closed

Company: Institutional Shareholder Services

Salary: $80,000 - $100,000

Type: Onsite

Employment: Full Time

Description: Let’s be #BrilliantTogetherISS STOXX is looking for Python Developer to join our team in Gurugram.Overview:We are seeking an experienced Python Developer to join our engineering team. This role focuses on hands-on backend development with opportunities to grow into leadership responsibilities, requiring someone who can build scalable server-side applications while collaborating with and learning from experienced developers. You will be responsible for driving backend technical decisions, ensuring system performance and reliability, and delivering robust solutions.Responsibilities:Backend Development & ArchitectureArchitect and design scalable backend systems using FastAPI framework for high-performance financial data processing and real-time index calculations.Design and implement scalable software solutions using advanced Python design patterns.Architect and optimize complex data processing workflows using Pandas and related libraries.Contribute to the development of RESTful APIs and microservices architecture to support distributed financial data processing.Collaborate with stakeholders to translate Business Requirement Documents (BRDs) into technical solutions.Develop and maintain robust data architectures for high-performance analytics and processing.Ensure adherence to SOLID principles and software engineering best practices across all development stages.Conduct code reviews and mentor team members on Pythonic practices and efficient data handling.Backend Development & IntegrationDevelop efficient, scalable backend services following industry best practices including unit testing, CI/CD, and design patterns.Design and implement database schemas and data models optimized for financial data processing.Build robust data integration layers connecting various back-end services, databases, and external financial data sources.Implement authentication, authorization, and security measures for backend APIs and services.Build and maintain cloud-native backend applications on GCP/AWS/Azure platforms with focus on scalability and reliability.Implement comprehensive monitoring and logging for backend systems and services.Implement automated testing strategies and ensure high code coverage across projects.Collaborate with cross-functional teams using Agile methodologies and participate in all Scrum ceremonies.Qualifications:Backend Technical ExpertiseStrong command of Python programming with emphasis on object-oriented design.Deep understanding of various design patterns. Ability to apply design patterns effectively in real-world scenarios to improve code modularity and maintainability.2+ years of hands-on experience with FastAPI or similar frameworks (Flask, Django) and building high-performance, scalable RESTful APIs.Strong expertise in backend data processing libraries including Pandas, NumPy, and data processing frameworks. Strong experience with Pandas for data manipulation, transformation, and analysis. Knowledge of internal workings of Pandas. Familiarity with performance optimization techniques. Experience handling large datasets and implementing efficient data pipelines.Solid foundation in Data Structures & Algorithms with ability to optimize backend systems for performance and scalability.Solid experience with RDBMS and SQL, including PostgreSQL, SQL Server, Oracle, or MySQL for backend data storage.Hands-on experience with cloud platforms (GCP preferred, AWS/Azure acceptable), including backend services, containerization, and orchestration.Proficiency with ORM libraries such as Pydantic, SQL Alchemy, or similar frameworks for backend data modelling.Preferred Qualifications:Experience with BigQuery or other data warehousing solutions.Knowledge of frontend technologies such as React.js, Vue.js, or Bootstrap for full-stack development.Experience with message queues and event-driven backend architectures (Apache Kafka, RabbitMQ, Redis).Familiarity with backend caching strategies and performance optimization techniques.Experience with backend data streaming technologies and real-time processing frameworks.Knowledge of backend containerization and orchestration platforms like Kubernetes.Understanding of financial markets and index calculation methodologies.CompetenciesTechnical Growth: Eagerness to learn and contribute to backend technical decisions with guidance from senior team members.System Design: Strong skills in designing scalable, maintainable backend architectures.Performance Optimization: Expertise in optimizing backend systems for high throughput and low latency.Problem-Solving: Strong analytical skills with ability to solve complex architectural challenges.Communication: Excellent verbal and written communication skills in English.Independence: Ability to work autonomously while maintaining focus on business objectives.Adaptability: Flexibility to work in a fast-paced environment with changing requirements.Quality Focus: Commitment to delivering high-quality, maintainable backend code an

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