Ismail Ferdous
Senior Software Engineer | Product Engineering
Salary / Daily rate
Paris, France
Freelance
Can come onsite
Skills
Languages
About me
Intro
Ingénieur Logiciel Senior avec plus de 10 ans d'expérience dans la conception et l'exploitation de plateformes SaaS distribuées. Passionné par le Product Engineering, la responsabilité technique et la conception de systèmes évolutifs. AI-Augmented Software Engineer Release Manager Production Engineer OpenSearch Engineer ElasticSearch Engineer Tech. Lead Java - Spring - Microservices architecture -REST APIs - jOOQ - React - PostgreSQL - OpenSearch - Elasticsearch - Kafka - Kubernetes
Work experience
Software Engineer
MiraklFreelance
Jan 2022 - Present
4 years 10 months
Remote
Development of a microservices-based SaaS e-commerce platform enabling synchronization (≤15 min) of product data (price, stock, catalog) from 5,000+ sellers to hundreds of marketplaces. AI based transformations and validations per marketplace shop, with strong scalability and high availability constraints. ## Responsibilities • Analyze technical and functional requirements (performance, stability, scalability) • Technical scoping, estimation, and prioritization with Product Managers • Development and optimization of Java services (microservices architecture) • Design of a resilient and scalable catalog management system for sellers across +200 marketplaces • Contribution to AI-based features (import recognition and catalog transformation) • Performance and query optimization • AI Integration: Leveraged Claude Code to accelerate development (Java/SQL generation, performance analysis, and incident investigation automation). • Code reviews and technical mentoring ## Architecture & Data • Real-time pipeline: Kafka + OpenSearch / Elasticsearch • 15M+ updates/day (price & stock) • Rule-based transformation engine using JSON (OpenSearch, PostgreSQL, or in-memory) • Optimized pagination (offset removal) using jOOQ • Versioned and documented REST APIs ## Production & Scalability • Multiple OpenSearch migrations (>700M documents) with <10 minutes downtime • OpenSearch optimization: shards, index management, ingestion • Monitoring & alerting (Datadog) • Infrastructure supervision: Kubernetes, PostgreSQL, OpenSearch (Aiven Cloud) • Zero-downtime deployments ## Incident Management • Cross-team coordination (support, business teams) • Fast resolution + long-term fixes without service interruption • Release management: hotfixes and maintenance of future releases
Java Software Engineer
ING FranceFreelance
Apr 2019 - Dec 2021
2 years 9 months
Paris Area, France
– Developed microservices and digital banking features (payments & life insurance) using Java/Spring and React, improving automation and modernizing legacy integrations in a DDD environment.
Consultant JavaEE
ADP
Feb 2018 - Mar 2019
1 year 2 months
92000 Nanterre, France
– Enhanced HR platforms and resolved critical production issues in a client-facing environment.
Consultant Java/AngularJS
Caisse d'Epargne
Mar 2017 - Jan 2018
11 months
Paris Area, France
– Built features for a public platform enabling users to reclaim unclaimed funds.
Java Software Engineer
ECA-Assurances
Jul 2014 - Feb 2017
2 years 8 months
Clichy, France
– Developed insurance modules and batch systems while supporting production environments.
Education
Université Hassan II Mohammedia
Master's Degree, Software quality
2012 - 2014
2 years 1 month
Portfolio
