06/17/2026 updated
100 % available
Senior Data Engineer & Tech Lead | Quantexa | Java | Spark | Scala | Kubernetes
BELFAST, United Kingdom
Only remote
B.Tech in Electronics and Communications Engineering from JNTUAbout me
I bring deep experience as DataEngineer, Java Developer, delivering solutions using Java, Spring Boot, REST APIs, and cloud‑native architectures. I have led cross‑functional teams, driven Agile delivery, and contributed to architectural decisions across public‑sector and enterprise platforms.
Java (Programming Language)Data ArchitectureScalaDatabase EnginesApache SparkSpring BootRancherData PipelineDatabricks
Quantexa ETL Pipeline Development
Expertise in designing, implementing, and optimizing complex ETL pipelines using Quantexa libraries (v2.0.1-2.7.7), supporting fusion and non-fusion models with complex scoring workflows, entity resolution tuning, and Quantexa UI customization.
Java & Scala Development
Extensive experience in Java and Scala development, including Spring Boot, Hibernate, and Spark, applied across large-scale data engineering and enterprise application projects spanning 20+ years of IT experience.
Kubernetes & Cloud Infrastructure
Proficiency in deploying and managing containerized data engineering workloads using Kubernetes and Helm on AWS, including automated Helm charts, Kubernetes manifests, and secure secrets management for scalable release pipelines.
Data & Cloud Platforms
Hands-on experience with Hadoop, AWS, and Kubernetes for building and managing scalable data engineering workflows in cloud and on-premise environments.
PL/SQL & Oracle Database
Technical leadership in tuning Siebel CRM performance on Oracle databases, including PL/SQL development and improving data processing reliability.
Siebel CRM Configuration & Integration
Deep knowledge of Siebel CRM, including Open UI, EIM, scripting, SmartScripts, Call Center, and Field Service modules, as well as Informatica integration and ETL workflow optimization.
Frontend Technologies
Familiarity with VueJS, ReactJS, TypeScript, and JavaScript for supporting domain-specific UI customizations and frontend development tasks.
Agile & DevOps Tooling
Practical experience with IntelliJ, Visual Studio, Git, Jenkins, and Agile methodologies, including code reviews, data profiling, performance tuning, and end-to-end solution delivery in multi-vendor environments.
Expertise in designing, implementing, and optimizing complex ETL pipelines using Quantexa libraries (v2.0.1-2.7.7), supporting fusion and non-fusion models with complex scoring workflows, entity resolution tuning, and Quantexa UI customization.
Java & Scala Development
Extensive experience in Java and Scala development, including Spring Boot, Hibernate, and Spark, applied across large-scale data engineering and enterprise application projects spanning 20+ years of IT experience.
Kubernetes & Cloud Infrastructure
Proficiency in deploying and managing containerized data engineering workloads using Kubernetes and Helm on AWS, including automated Helm charts, Kubernetes manifests, and secure secrets management for scalable release pipelines.
Data & Cloud Platforms
Hands-on experience with Hadoop, AWS, and Kubernetes for building and managing scalable data engineering workflows in cloud and on-premise environments.
PL/SQL & Oracle Database
Technical leadership in tuning Siebel CRM performance on Oracle databases, including PL/SQL development and improving data processing reliability.
Siebel CRM Configuration & Integration
Deep knowledge of Siebel CRM, including Open UI, EIM, scripting, SmartScripts, Call Center, and Field Service modules, as well as Informatica integration and ETL workflow optimization.
Frontend Technologies
Familiarity with VueJS, ReactJS, TypeScript, and JavaScript for supporting domain-specific UI customizations and frontend development tasks.
Agile & DevOps Tooling
Practical experience with IntelliJ, Visual Studio, Git, Jenkins, and Agile methodologies, including code reviews, data profiling, performance tuning, and end-to-end solution delivery in multi-vendor environments.
Experience
Professional experience0 - 5 years
Freelancer since2026
Languages
EnglishNative speaker
Project history
Designed and implemented scalable Quantexa ETL pipelines for multiple data sources utilizing Quantexa libraries to support fusion and non-fusion models. Led entity resolution tuning using Overlinking AI and BEA tools. Customized Quantexa UI components for domain-specific visualizations. Architected containerized deployments of Quantexa microservices using Kubernetes and Helm. Collaborated with cross-functional Agile teams and business stakeholders to align data engineering solutions with risk modelling requirements.
Led Siebel and Informatica integration projects, optimizing ETL workflows and resolving critical production issues using detailed RCA. Provided technical leadership for tuning Siebel CRM performance on Oracle databases. Delivered code reviews, architecture enhancements, and guided cross-team release management in a multi-vendor environment. Diagnosed and fixed issues spanning Siebel workflows, Informatica mappings, and BO reports.
Delivered end-to-end implementations of Siebel Call Center and Field Service modules. Managed a 5-member offshore team, conducted reviews, and coordinated European rollouts. Developed Siebel configurations including Open UI, EIM, and scripting, and supported legacy data profiling. Led solution design (HLD/LLD), defect tracking, and Agile ceremonies across releases.