Modassir Ahmed Zakri
Open to Relocation (Netherlands) | EU Blue Card Eligible
Summary
Backend Engineer (8+ yrs) specializing in legacy-to-cloud transformations decomposing monoliths into microservices and migrating Java codebases to Java 17/Jakarta EE. Daily driver of AI coding tools (Copilot, Claude, Windsurf) for legacy code analysis, refactoring, and test generation. Strong in Java, SOLID, TDD, distributed systems, and AWS/Azure.
Overview
10
10
years of professional experience
Work History
Software Development Senior Specialist
NTT DATA
11.2023 - Current
Legacy Modernization & AI
• Decomposed monolith into microservices using Spring Boot 3, Java 17+, DDD, and Clean Architecture.
• Integrated IBM Watson LLM into legacy IVR systems, automating NLU-based customer support.
AI-Assisted Development
• Used AI coding assistants (Windsurf, Claude) daily to analyze legacy code, generate refactors, and write tests for undocumented logic, reviewing output for accuracy before merging.
CI/CD & Cloud
• Built CI/CD pipelines (Jenkins, GitLab Actions) for Gradle builds on Kubernetes/OpenShift.
• Hardened container security by migrating Docker images via HCR, cutting vulnerabilities.
• Rolled out LaunchDarkly flags across 10+ features for safe, real-time incremental releases.
Quality & Reliability
• Drove TDD with JUnit/integration testing, including coverage for undocumented legacy code.
• Added observability and monitoring (Dynatrace, Splunk) across high-load microservices, ensuring reliability under load.
APIs & Security
• Designed versioned REST APIs for partner-facing platform integrations.
• Built secure login authentication and user access control using Spring Security and OAuth2.
Leadership
• Mentored junior developers via code reviews, building shared business-logic ownership.
Progressive Roles: Associate -> System Engineer -> IT Analyst
Tata Consultancy Services
12.2016 - 11.2023
- Engineered high-throughput financial execution and order-flow APIs (SWIFT/SOAP/REST), modernizing legacy trading workflows for a global banking platform.
- Automated legacy financial reporting and invoicing using Spring Batch, cutting manual effort and report time.
- Worked in a distributed microservices setup, reducing tight coupling and boosting scalability.
- Led a 3-person Scrum team to modernize app workflows, cutting development time through data-informed decisions.
- Managed projects independently, aligning stakeholders and driving decisions through influence, not authority.
Education
Bachelor of Technology -
Techno India
Skills
Languages & Core
- Java 17 / JDK 17
- OOP & SOLID Design Principles
- REST APIs
- Low-Latency Design
Architecture & Modernization
- Spring Boot, Quarkus, JBoss
- Microservices Architecture
- Distributed Systems (Kafka, Redis)
AI-Assisted Development
- AI & LLM Integration
- GitHub Copilot, Windsurf, Claude
- Agentic AI Development
Cloud & Containers
- Cloud – AWS, Azure
- Docker & Kubernetes
CI/CD & Practices
- CI/CD & DevOps Practices
- Agile / Scrum
- Test-Driven Development (TDD)
Data
- SQL, PL/SQL, PostgreSQL
- Hibernate
Testing
- Unit Testing (JUnit)
Websites
Languages
Hindi
First Language
English
Advanced
C1
Personal Details
Notice Period - 30 days
Onsite Availibility - Available to relocate and work onsite 3+ days/week
Country- India
Timeline
Software Development Senior Specialist
NTT DATA
11.2023 - Current
Progressive Roles: Associate -> System Engineer -> IT Analyst
Tata Consultancy Services
12.2016 - 11.2023
Bachelor of Technology -
Techno India