Avinash Kumar

Software Engineer

Bengaluru, Karnataka, India7 yrs 8 mos experience

Most Likely To Switch

Key Highlights

Expert in building scalable payment infrastructure.
Proficient in microservices and backend engineering.
Strong experience in financial systems and secure APIs.

Stackforce AI infers this person is a Backend Engineer specializing in Fintech and Microservices architecture.

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Skills

Core Skills

MicroservicesBackend Engineering

Other Skills

Spring FrameworkSpring BootREST APIsApache KafkaPostgreSQLJenkinsSQLDockerJavaMongoDBApache SparkKong API GatewayAzure DevOps ServicesIBM Db2Git

About

Currently contributing as an SDE II in the Payments Squad at Landmark Group, focusing on building and scaling backend payment infrastructure. Work involves designing and developing microservices to integrate external payment providers such as Credit Cards, BNPL, and PayPal, as well as enhancing internal financial systems like Wallet and Cashback services. Expertise extends to creating secure REST APIs, implementing event-driven workflows via Kafka, and optimizing transaction processing systems. Holds a Bachelor of Engineering in Civil Engineering from Dr. D. Y. Patil Institute of Engineering & Technology, Pune. Demonstrates strong competencies in backend engineering, microservices architecture, and financial systems, with a commitment to building scalable and efficient solutions. Passionate about developing reliable systems that address complex challenges in real-world scenarios.

Experience

7 yrs 8 mos

Total Experience

1 yr 11 mos

Average Tenure

2 yrs 2 mos

Current Experience

Landmark group

SDE II

Apr 2024 – Present · 2 yrs 2 mos · Bengaluru, Karnataka, India · On-site

Payment Squad | Backend Engineering | Microservices | Financial Systems
Working as part of the Payments Squad, responsible for building and scaling payment infrastructure across Landmark Group’s retail brands such as Max, Centrepoint, and Home Centre.
Key responsibilities and contributions:
Designed and developed backend microservices for integrating external payment providers including Credit Cards, BNPL, and PayPal.
Built and enhanced internal financial systems such as Wallet and Cashback services used across multiple retail platforms.
Developed secure, high-performance REST APIs for transaction processing and payment orchestration.
Implemented event-driven workflows using Kafka for reliable and asynchronous payment processing.
Optimized database queries (PostgreSQL) and backend logic to improve transaction throughput and reduce latency.
Worked on end-to-end payment lifecycle — authorization, capture, refund, reconciliation, and status handling.
Collaborated closely with product, QA, DevOps, and frontend teams to ensure seamless payment flows across channels.
Handled production issues, log analysis, monitoring, and performance tuning to ensure high system reliability.
Contributed to CI/CD pipelines using Jenkins, Docker, and Kubernetes for seamless deployments.
Impact:
Delivered scalable payment integrations supporting high transaction volumes.
Improved system stability and reduced production incidents through proactive optimizations.
Enabled seamless integration of new payment methods to enhance customer checkout experience.

Spring FrameworkSpring BootREST APIsApache KafkaPostgreSQLMicroservices+2

Infosys

Technology Analyst

Oct 2023 – Dec 2023 · 2 mos · Bengaluru, Karnataka, India · On-site

Project: AMEX | Enterprise Financial Systems | Microservices
Worked as a Backend Engineer on the AMEX project, contributing to scalable enterprise-grade financial systems in a high-performance, cloud-native environment.
Key responsibilities and contributions:
Designed and developed microservices using Java and Spring Boot for enterprise financial workflows.
Built and enhanced RESTful APIs ensuring secure and efficient data exchange across distributed systems.
Contributed to backend architecture improvements to support scalability and high transaction volumes.
Worked with PostgreSQL and SQL for data modeling, query optimization, and performance tuning.
Integrated Kafka for asynchronous communication between microservices.
Leveraged Docker and basic Kubernetes for containerized deployments.
Worked with Spark for large-scale data processing and analytics workflows.
Followed Agile/Scrum methodologies and collaborated with cross-functional teams to deliver high-quality releases.
Participated in CI/CD processes using Jenkins to ensure smooth build and deployment cycles.
Impact:
Improved backend performance and response times through optimization initiatives.
Contributed to scalable service design supporting enterprise-level financial operations.
Ensured reliable and maintainable code in a fast-paced, production-driven environment.

Spring FrameworkSpring BootREST APIsPostgreSQLSQLApache Kafka+4

Wissen technology

Software Engineer

May 2022 – Jul 2023 · 1 yr 2 mos · Bengaluru, Karnataka, India · Hybrid

Client: Morgan Stanley (MSIM – EV Integration) | Investment Banking | Microservices Migration
Worked as a Backend Engineer on Morgan Stanley’s MSIM EV Integration project, contributing to enterprise-scale backend systems within an investment banking environment.
Key responsibilities and contributions:
Migrated legacy monolithic components into a microservices-based architecture to improve scalability and maintainability.
Designed and implemented RESTful APIs to support financial data integration and backend workflows.
Developed backend services using Java and SQL, ensuring high performance and data consistency.
Worked on rule-based implementations using Drools for handling complex business logic.
Contributed to build, deployment, and automation processes using Jenkins.
Assisted in performance tuning, debugging, and production issue resolution.
Collaborated with cross-functional teams to align backend implementations with business and regulatory requirements.
Worked with Apache Spark for data processing use cases.
Impact:
Improved system modularity by contributing to microservices migration efforts.
Enhanced performance and maintainability of backend services.
Supported enterprise-grade financial workflows within a highly regulated banking ecosystem.

Spring FrameworkJavaSQLMongoDBApache SparkJenkins+2

Godavari construction pvt ltd

Associate Software Engineer

Jun 2020 – May 2022 · 1 yr 11 mos · Pune, Maharashtra, India · Remote

Project: Customer Data Management System (Home Reserve, USA)
Started my backend engineering journey by working on a Customer Data Management System built using Java and Spring Boot.
Key responsibilities and contributions:
Designed and developed backend modules using Java and Spring Boot for managing customer and business data.
Implemented MVC architecture components including controllers, service layers, and DAO layers.
Developed and optimized database operations using Spring Data JPA and SQL.
Built dynamic web components using JSP and integrated them with backend services.
Worked on Tomcat server configuration and Maven-based project builds.
Participated in Agile/Scrum ceremonies including sprint planning and daily stand-ups.
Assisted in debugging, issue resolution, and deployment support.
Impact:
Contributed to the development of a structured data management system improving operational efficiency.
Gained strong fundamentals in backend architecture, database design, and application layering.
Built a solid foundation in Spring ecosystem and enterprise application development.