Ajay K
Mentor
(350 reviews)
US$25.00
For every 15 mins
873
Sessions/Jobs
ABOUT ME
Cloud Architect |AI| Azure| AWS Certified|Spring Boot|CI-CD|ELK|Docker|Kubernetes|JUnit|Azure|800+ sessions|300+ 5 Star
Cloud Architect |AI| Azure| AWS Certified|Spring Boot|CI-CD|ELK|Docker|Kubernetes|JUnit|Azure|800+ sessions|300+ 5 Star
AI engineer and cloud architect with 16+ years building and scaling production software systems. I help startups and product teams take LLM features from prototype to production: combining Azure OpenAI, Java, Python, TypeScript, and cloud-native architecture to ship systems that stay reliable under real traffic.
I specialise in the engineering layer around LLMs, where most AI projects actually fail: inference isolation so model latency and outages don't take down core services, structured prompt engineering with response validation and guardrails, low-latency service integration, and cost control under variable AI workloads. Alongside that, the fundamentals: LLM-powered APIs, backend services, and event-driven microservices on Docker, Kubernetes, Azure, Kafka, and CI/CD.
Currently at Microsoft, bringing enterprise-grade engineering discipline to fast-moving startup environments. I work comfortably in small distributed teams, communicate clearly with technical and non-technical stakeholders, and focus on AI features that reach users rather than demos.
Dutch, Hindi, English
Brussels (+02:00)
Joined May 2020
EXPERTISE
10 years experience | 39 endorsements
8 years experience | 14 endorsements
8 years experience | 3 endorsements
3 years experience
5 years experience
7 years experience
Currently employed at Microsoft use these tech stack on daily basis.
Currently employed at Microsoft use these tech stack on daily basis.
6 years experience
REVIEWS FROM CLIENTS
(350 reviews)
Christopher Carr
June 2022
Very friendly and helpful
Ifeanyi Owah
March 2022
Ajay was patient and not only solved the problem but helped me understand what to do if I have a similar challenge again.
TM
February 2022
Perfect - Thank you so much
TM
February 2022
Excellent Professional Work - Thanks
Kevin
February 2022
Knowledgeable and thorough with the Java 8 concepts. Would definitely recommend for mentoring sessions.
Testdome
February 2022
Nice work reviewing some Ansible related tasks.
Stephanie
December 2021
Patient, knowledgeable in Java and time-efficient support. Thank you
Tyler Jaeger
December 2021
Good mentor for free lance work.
Mike McMahon
November 2021
Ajay is very patient and knows a lot about java.
Jelmer
November 2021
Very Knowledgeable and explains everything what he is doing, so that you actually learn something!
EMPLOYMENTS
Senior Fullstack Developer
Microsoft
2019-09-01-Present
- Architected and delivered a production LLM platform in Java 21, isolating AI inference from core business services behind a dedic...
- Architected and delivered a production LLM platform in Java 21, isolating AI inference from core business services behind a dedicated integration layer — containing model latency and provider failures at the boundary and cutting AI-related production incidents ~40%.
- Integrated Azure OpenAI for context-aware summarisation and decision support, applying structured prompt engineering, schema-constrained outputs, and response validation to lift accuracy ~25–30% on domain-specific queries.
- Designed low-latency gRPC integrations between Java microservices and Python AI services, sustaining sub-100ms internal calls under real-time inference load.
- Deployed and operated LLM services on Azure Kubernetes Service with Docker and ACR, using horizontal autoscaling and resource limits to reduce infrastructure cost ~20% under highly variable AI workloads.
- Built end-to-end CI/CD in Azure DevOps, cutting deployment from hours to under 15 minutes and enabling frequent, zero-downtime releases of AI features.
- Optimised PostgreSQL schemas and queries backing AI context enrichment, reducing query latency ~35% on high-throughput paths.
Python
Java
Angular
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Python
Java
Angular
Azure
Elasticsearch
TypeScript
Maven 3
Docker
Leadership
Spring Boot
Apache Kafka
Kubernetes
Architectural Design
OpenAI
AI
LLM
Ai/llm technologies
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SR Java Developer
MELEXIS
2019-01-01-2019-08-01
- Developed and architected SpringBoot components with RESTful web services, incorporating TDD, <...
- Developed and architected SpringBoot components with RESTful web services, incorporating TDD, JPA (Hibernate), unit testing (JUnit), integration testing, and a continuous delivery model.
- Enhanced code optimization, improving unit testing efficiency by 20%.
- Created new REST APIs for microservices and enhanced/fixed existing ones.
- Managed project security using Spring Security and Keycloak.
- Optimise Git pipelines, Docker files and the build process.
- Deploy microservices in a distributed environment using Kubernetes.
- Technologies: Java11, SpringBoot, Hibernate, JUnit, Postgres, Git, Docker, Kubernetes, OAuth2, JWT, Key-Cloak, Spring Security, IntelliJ, MySQL
Java
Jenkins
Test driven development
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Java
Jenkins
Test driven development
Docker
Google Cloud Platform
Spring Boot
Kubernetes
Microservices
AWS Lambda
CI/CD
EC2 Instance Types
AWS
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SR Software Engineer
Honeywell
2015-05-01-2018-12-01
- Bootstrapped the eSignature product from scratch, which included requirement gathering, design,...
- Bootstrapped the eSignature product from scratch, which included requirement gathering, design, architecture, implementation, testing, and maintenance.
- Responsible for design and developing ETL processes using Kafka and Spark.
- Played a key role in the EIServer project, focusing on the development of Java components in the smart meter domain, akey aspect of Honeywell's IoT offerings.
- Develop microservices as OSGi bundles, ensuring each service (e.g., device management, user management, dataanalytics) is a self-contained module.
- Leverage OSGi’s dynamic module system to ensure services can be installed, updated, and replaced on-the-fly, withoutstopping the entire application.
- Partnered with a team of 36 members spread across six geographical locations, promoting cross-functional teamwork.
- Technologies: Java 8, SpringBoot, JIRA, Kakfa, Spark, TDD, Git, Maven, Eclipse, Oracle, Minimum Viable Product (MVP), OSGi, Apache Karaf
Java
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Java
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PROJECTS
MilliporeSigma e-commerce project
2023
Led the integration of TreviPay and Elavon payment gateways into an e-commerce platform, ensuring secure, seamless transactions. Deployed...
Led the integration of TreviPay and Elavon payment gateways into an e-commerce platform, ensuring secure, seamless transactions. Deployed the solution on AWS, optimizing for scalability and reliability, and managed the CI/CD pipeline for continuous deployment.
Roles and Responsibilities as Technical Java Lead:
1. Technical Solution Design:
- Developed the technical design from business requirements for the integration.
2. Integration and Development:
- Led the end-to-end integration of payment gateways using Java.
3. AWS Deployment & CI/CD Management:
- Deployed the solution on AWS and managed CI/CD pipelines for automated deployments.
4. Team Leadership:
- Provided technical support to the team, resolving complex issues.
5. Stakeholder Communication:
- Collaborated with stakeholders to align technical solutions with business goals.
Java
MySQL
Git
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Java
MySQL
Git
Payment gateway
Front-End
React
Payment systems
CI/CD
Cassandra NoSQL Database
Security software
AWS
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