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Hi, I am Ajay Kumar, a passionate Software Engineer based in Paderborn, Germany. I enjoy developing scalable microservices and data pipelines with a strong focus on automation and high-performance computing. I have solid experience in Java, Python, Kotlin and frameworks such as Spring Boot and FastAPI. Currently, I am a Research Assistant working on improving software architectural design decisions using machine learning and large language models. Driven by continuous learning, I am excited to contribute to innovative projects in software development and research.…Hi, I am Ajay Kumar, a passionate Software Engineer based in Paderborn, Germany. I enjoy developing scalable microservices and data pipelines with a strong focus on automation and high-performance computing. I have solid experience in Java, Python, Kotlin and frameworks such as Spring Boot and FastAPI. Currently, I am a Research Assistant working on improving software architectural design decisions using machine learning and large language models. Driven by continuous learning, I am excited to contribute to innovative projects in software development and research.

Ajay Kumar

Developer, Web Developer, Programmer, +1

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Hi, I am Ajay Kumar, a passionate Software Engineer based in Paderborn, Germany. I enjoy developing scalable microservices and data pipelines with a strong focus on automation and high-performance computing. I have solid experience in Java, Python, Kotlin and frameworks such as Spring Boot and FastAPI. Currently, I am a Research Assistant working on improving software architectural design decisions using machine learning and large language models. Driven by continuous learning, I am excited to contribute to innovative projects in software development and research.…Hi, I am Ajay Kumar, a passionate Software Engineer based in Paderborn, Germany. I enjoy developing scalable microservices and data pipelines with a strong focus on automation and high-performance computing. I have solid experience in Java, Python, Kotlin and frameworks such as Spring Boot and FastAPI. Currently, I am a Research Assistant working on improving software architectural design decisions using machine learning and large language models. Driven by continuous learning, I am excited to contribute to innovative projects in software development and research.

Available to hire

Hi, I am Ajay Kumar, a passionate Software Engineer based in Paderborn, Germany. I enjoy developing scalable microservices and data pipelines with a strong focus on automation and high-performance computing. I have solid experience in Java, Python, Kotlin and frameworks such as Spring Boot and FastAPI.

Currently, I am a Research Assistant working on improving software architectural design decisions using machine learning and large language models. Driven by continuous learning, I am excited to contribute to innovative projects in software development and research.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Advanced

German

Intermediate

Work Experience

Research Assistant Developer at Dice Research Group

February 1, 2023 - Present

Developed multiple microservices including those for carbon emissions calculation, recommendation API, and analytics. Automated conversion of Excel data into a knowledge graph to simplify data processing workflows. Automated deployment pipelines using GitHub Actions for continuous integration and delivery. Implemented scalable data workflows on High-Performance Computing (HPC) systems to optimize preprocessing and model training.

Software Engineer at Virtual Sandbox

October 31, 2022 - August 22, 2025

Built data pipelines for processing financial invoices and generating alerts for due payments. Developed tools for designing automated marketing workflows with customizable rules. Created dashboards to provide clients with insights and management capabilities for financial dues. Integrated Twilio API to enable new notification channels. Built a scalable Reminder-Engine using queues and job scheduling for efficient message delivery.