Diwakar Kushwaha — Senior Software Engineer

Senior Software Engineer with 12+ years of experience specializing in the design and delivery of high-performance, mission-critical distributed systems. I have a proven track record of transforming complex legacy architectures into scalable, cloud-native solutions that handle massive data throughput. Why I am a strong asset for high-scale organizations: * Proven Performance Results: At BNY Mellon, I optimized "Document Upload" performance by over 230% and "Email Delivery" by 400% using S3 and high-concurrency patterns. * High-Stakes Data Engineering: Architected fault-tolerant systems currently handling 35GB+ data files per dump, integrating Kafka for real-time processing in mission-critical environments. * Modern Tech Leadership: Expert in Java 21, Spring Boot, and Kafka, with a deep focus on System Design (HLD/LLD) and Cloud Migration. * Domain Versatility: Extensive experience across Banking, Fintech, Insurance, and Space sectors, allowing me to apply cross-industry best practices to any technical challenge. Core Technical Stack: * Backend: Java 21 (Expert), Spring Boot, Hibernate, RESTful APIs, Python. * Infrastructure/Data: Kafka, AWS (S3, Cloud), Kubernetes, Docker, Oracle DB. * Architecture: System Design, Microservices, IAM, Data Security, Workload Management. Certifications: AWS AI Practitioner, OCI AI Foundations 2025, AWS Cloud Practitioner & Confluent Apache Kafka Fundamentals Accreditation Education: Master’s in Computer Applications (MCA) from NIT Surathkal, India. Outside of code, I love to run and also completed a marathon, which fuels my discipline and persistence in solving the most complex engineering "long runs". Based in Darmstadt, Germany | Blue Card Holder.

Stackforce AI infers this person is a Fintech and Cloud Computing specialist with extensive experience in high-performance distributed systems.

Location: Darmstadt, Hesse, Germany

Experience: 11 yrs 8 mos

Skills

Java
Microservices
Cloud Computing
Software Design

Career Highlights

Transformed legacy systems into cloud-native solutions.
Achieved 400% increase in email delivery efficiency.
Expert in high-performance data engineering.

Work Experience

CS GROUP

Senior Software Engineer (3 yrs 8 mos)

BNY

Senior Software Engineer (2 yrs 10 mos)

Oracle

Senior Software Engineer (8 mos)

Java Software Developer (2 yrs 7 mos)

Intellect Design Arena Ltd | A Polaris Group Company

Product Engineer (1 yr 11 mos)

Polaris Financial Services

Graduate Intern (5 mos)

Education

Master’s Degree at National Institute of Technology Karnataka

Bachelor's degree at Makhanlal Chaturvedi National University of Journalism and Communication, Bhopal

High school at Saraswati shishu mandir, Bina

Diwakar Kushwaha

Senior Software Engineer

Darmstadt, Hesse, Germany11 yrs 8 mos experience

Most Likely To SwitchAI Enabled

Key Highlights

Transformed legacy systems into cloud-native solutions.
Achieved 400% increase in email delivery efficiency.
Expert in high-performance data engineering.

Stackforce AI infers this person is a Fintech and Cloud Computing specialist with extensive experience in high-performance distributed systems.

Contact

Skills

Core Skills

JavaMicroservicesCloud ComputingSoftware Design

Other Skills

Apache KafkaMicroserviceAWSCore JavaSonarqubeRESTful APIsSoftware DevelopmentTechnical Solution DesignArtificial Intelligence (AI)Oracle CloudMachine LearningOperating SystemsC++JiraSkill Development

About

Experience

11 yrs 8 mos

Total Experience

2 yrs 11 mos

Average Tenure

3 yrs 8 mos

Current Experience

Cs group

Senior Software Engineer

Sep 2022 – Present · 3 yrs 8 mos · Darmstadt, Hesse, Germany · Hybrid

Cloud Transformation: Leading the architectural design and strategic migration of mission-critical on-premise infrastructure to high-availability cloud environments.
Security & IAM: Defining system-level architecture with a focus on Identity & Access Management (IAM), data security protocols, and optimized workload management.
High-Volume Data Engineering: Engineered scalable, fault-tolerant microservices using Java 21 to ingest and process high-volume data packets (35GB+ per file).
Event-Driven Architecture: Integrated Apache Kafka to facilitate real-time data processing and streamline asynchronous communication across distributed services.
Tech Stack Modernization: Spearheaded the migration of legacy Java applications to Spring Boot, significantly enhancing overall system performance and throughput.
Technical Leadership: Providing expert consultation across multiple teams on Spring Boot best practices and Kafka-based system integration.

JavaApache KafkaMicroservices

Bny

Senior Software Engineer

Nov 2019 – Sep 2022 · 2 yrs 10 mos · Pune, Maharashtra, India · On-site

Scalability & Throughput: Engineered high-performance optimizations for core document processing modules, resulting in a 230% increase in upload capacity (from 1,800 to 6,000+/hr) and an 1,100% surge in document merging efficiency (from 500 to 6,000+/hr).
Cloud Architecture: Architected and deployed a resilient AWS S3-based delivery engine for high-priority financial communications, successfully scaling automated email delivery by 400% (from 2,000 to 10,000+ transmissions per hour).
Strategic System Design: Led the technical redesign and development of multiple high-impact features, focusing on reducing system latency and enhancing the reliability of global banking operations.
Performance Engineering: Systematically identified and resolved complex architectural bottlenecks, ensuring the platform could meet the rigorous transactional demands of a Tier-1 financial institution.

JavaMicroserviceMicroservices

Oracle

2 roles

Senior Software Engineer

Promoted

Mar 2019 – Nov 2019 · 8 mos · On-site

End-to-End System Architecture: Spearheaded the full-lifecycle architecture, design, and development of a high-complexity "Rule Configuration" engine from the ground up, delivering both robust backend services and a responsive frontend interface.
Scalable Data Ingestion: Served as the lead full-stack developer for a high-volume "Contact Upload" module, engineering a solution capable of processing and validating 100,000+ records per file with high reliability.
Event-Driven Integration: Designed and implemented a core "Task Module" integrated with Apache Kafka, enabling high-throughput, asynchronous task processing across the enterprise platform.
Full-Stack Ownership: Demonstrated technical versatility by owning the complete development cycle of critical modules, ensuring seamless integration between complex business logic and user-facing components.

Core JavaSoftware DesignJava

Java Software Developer

Jul 2016 – Feb 2019 · 2 yrs 7 mos · On-site

Worked as Product engineer, Developed multiple features from Scratch.

Core JavaJava

Intellect design arena ltd | a polaris group company

Product Engineer

Jul 2014 – Jun 2016 · 1 yr 11 mos · Hyderabad Area, India · On-site

End-to-End Product Engineering: Orchestrated the full-lifecycle design and development of critical RESTful APIs and complex backend business logic from the ground up for global banking solution suites.
Engineering Excellence & Quality: Spearheaded a major quality overhaul by implementing comprehensive automated testing frameworks, successfully increasing system code coverage from 55% to 90% using JaCoCo.
High-Stakes Feature Innovation: Engineered and deployed multiple core functionalities within a high-performance financial technology ecosystem, focusing on modularity, security, and scalable data processing.
Collaborative System Design: Partnered with cross-functional teams to translate complex financial requirements into high-availability technical architectures, ensuring compliance with global banking industry standards.

Core JavaSonarqubeJava