Full Stack Engineer

Company Description

Nivi Capital is dedicated to empowering Indian students to pursue global education by eliminating financial barriers. Focused on students heading to Australia, Nivi Capital offers a comprehensive financial platform that includes education loans, forex services, and a rewards program to make overseas education more accessible and stress-free. Supported by industry leaders and trusted financial institutions, the company ensures seamless access to secure and flexible financial solutions. Located in Mumbai, Nivi Capital is committed to simplifying the journey towards international education.

Role Description

This is a full-time on-site role based in (Andheri) Mumbai for a highly skilled Full Stack Developer with strong expertise in Java, Spring Boot, Angular, and modern backend/frontend technologies to build scalable, secure, and high-performance fintech applications. You will play a key role in designing, developing, and maintaining end-to-end applications that handle sensitive financial data, large-scale transactions, and complex business workflows.

Responsibilities

End-to-End Application Development

• Design, develop, and maintain full-stack web applications using Java, Spring Boot, Angular, Node.js, Express, and Oracle DB / MongoDB.
• Convert business requirements, product specs, and UX wireframes into scalable backend services and intuitive frontend interfaces.
• Build reusable UI components, shared libraries, and backend modules to improve development efficiency and consistency.

Backend Engineering & API Development

• Develop secure, scalable, and high-performance RESTful APIs for fintech features such as loan eligibility, onboarding flows, KYC, document management, and payment services.
• Implement microservices-based architecture using Java Spring Boot, ensuring modular, testable, and maintainable systems.
• Design optimized database schemas and write efficient queries for both SQL and NoSQL databases.

Frontend Development & User Experience

• Build responsive, high-performance, and user-friendly web interfaces using Angular and TypeScript.
• Optimize UI for speed, cross-browser compatibility, accessibility, and mobile responsiveness.
• Collaborate with UI/UX designers to improve customer journeys, reduce friction, and enhance overall user experience.

System Architecture & Scalability

• Participate in system design and architectural discussions to support scalability and high availability.
• Contribute to architecture decisions involving microservices, event-driven systems, caching, API gateways, and database design.
• Design systems capable of handling high traffic, large datasets, and financial workloads.

Security & Compliance

• Implement security best practices including data encryption, JWT authentication, authorization, and secure API communication.
• Ensure compliance with financial regulations, data privacy standards, and secure handling of PII.
• Collaborate with teams to protect systems against security threats, vulnerabilities, and fraud attempts.

Third-Party Integrations

• Integrate with external systems and APIs such as KYC/AML providers, payment gateways, loan management systems, and other fintech partners.
• Build fault-tolerant integrations and manage asynchronous data processing where required.

Performance Optimization & Monitoring

• Continuously monitor and optimize application performance, API latency, database queries, and UI responsiveness.
• Use monitoring and logging tools like ELK Stack, Grafana, Prometheus, New Relic, or similar.
• Perform root cause analysis and implement solutions to maintain high system reliability and uptime.

DevOps & Deployment Collaboration

• Collaborate with DevOps teams to enhance CI/CD pipelines.
• Automate builds and deployments using Jenkins, GitHub Actions, GitLab CI, etc.
• Support containerization (Docker) and orchestration (Kubernetes) initiatives.
• Ensure smooth deployments, rollback strategies, and minimal downtime.

Code Quality & Best Practices

• Write clean, modular, and maintainable code following industry best practices and coding standards.
• Participate in peer code reviews to ensure high-quality deliverables.
• Maintain technical documentation for code, APIs, and system architecture.

Cross-Functional Collaboration

• Work closely with product managers, business stakeholders, and designers to align technical solutions with business goals.
• Provide technical inputs during product planning, estimations, and feasibility discussions.
• Communicate progress and technical concepts clearly to non-technical stakeholders.

Ownership & Continuous Improvement

• Take end-to-end ownership of features from design to deployment and post-production monitoring.
• Proactively recommend new tools, frameworks, and technologies to improve scalability, security, and development speed.
• Stay updated with latest trends in fintech, full-stack development, and cybersecurity.

Qualifications:

• Bachelor's or Master's degree in Computer Science, Engineering, Information Technology, or a related field.
• X+ years of professional experience in Full Stack Development or Backend / Frontend Engineering roles.
• Strong hands-on experience with Java, Spring Boot, and Microservices architecture.
• Proficiency in Angular and TypeScript for building modern, responsive web applications.
• Experience developing RESTful APIs and integrating third-party services.
• Solid understanding of SQL and NoSQL databases such as Oracle, MySQL, PostgreSQL, MongoDB, etc.
• Practical experience with authentication and authorization mechanisms including JWT, OAuth, and secure API design.
• Familiarity with fintech or financial services systems, including payments, KYC/AML, lending platforms, or transaction processing.
• Experience working in Agile/Scrum development environments.

Preferred / Good-to-Have Qualifications

• Experience with Node.js and Express.js for backend development.
• Exposure to event-driven or distributed systems (Kafka, RabbitMQ, etc.).
• Hands-on experience with Docker, Kubernetes, and cloud platforms (AWS, Azure, or GCP).
• Knowledge of CI/CD pipelines using Jenkins, GitHub Actions, GitLab CI, or similar tools.
• Familiarity with monitoring and logging tools such as ELK Stack, Grafana, Prometheus, or New Relic.
• Understanding of security best practices, data privacy, and regulatory compliance in financial systems.
• Experience working with high-traffic, high-availability systems.
• Prior experience in a fintech, banking, NBFC, or payments domain.