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I am an agile microservices developer with over 13 years of experience, specializing in designing, building, and deploying scalable Java, Kotlin, and Python services. I love turning complex requirements into reliable, well-tested microservices and leading teams to deliver high-quality software. I've partnered with global clients such as Jaja Finance, R3, Pollinate International, Clim8 Invest, O2, and Clear Channel, and I currently hold ILR status in the UK, enabling me to contribute immediately with no visa sponsorship required.…I am an agile microservices developer with over 13 years of experience, specializing in designing, building, and deploying scalable Java, Kotlin, and Python services. I love turning complex requirements into reliable, well-tested microservices and leading teams to deliver high-quality software. I've partnered with global clients such as Jaja Finance, R3, Pollinate International, Clim8 Invest, O2, and Clear Channel, and I currently hold ILR status in the UK, enabling me to contribute immediately with no visa sponsorship required.

Saurabh Sonawane

Full Stack Developer, Web Developer, Back-End Developer, +2

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I am an agile microservices developer with over 13 years of experience, specializing in designing, building, and deploying scalable Java, Kotlin, and Python services. I love turning complex requirements into reliable, well-tested microservices and leading teams to deliver high-quality software. I've partnered with global clients such as Jaja Finance, R3, Pollinate International, Clim8 Invest, O2, and Clear Channel, and I currently hold ILR status in the UK, enabling me to contribute immediately with no visa sponsorship required.…I am an agile microservices developer with over 13 years of experience, specializing in designing, building, and deploying scalable Java, Kotlin, and Python services. I love turning complex requirements into reliable, well-tested microservices and leading teams to deliver high-quality software. I've partnered with global clients such as Jaja Finance, R3, Pollinate International, Clim8 Invest, O2, and Clear Channel, and I currently hold ILR status in the UK, enabling me to contribute immediately with no visa sponsorship required.

Available to hire

I am an agile microservices developer with over 13 years of experience, specializing in designing, building, and deploying scalable Java, Kotlin, and Python services. I love turning complex requirements into reliable, well-tested microservices and leading teams to deliver high-quality software.

I’ve partnered with global clients such as Jaja Finance, R3, Pollinate International, Clim8 Invest, O2, and Clear Channel, and I currently hold ILR status in the UK, enabling me to contribute immediately with no visa sponsorship required.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Software Engineer / Team Lead at Jaja Finance

January 1, 2015 - Present

Led the design and implementation of the Enrichment feature, integrating Bud’s open banking data intelligence to enhance real-time transaction insights, including categorization, subscription detection, and recurring payments. Designed microservices to support enrichment workflows using Java, Spring Boot, Kafka, REST API, AWS, Docker, and Kubernetes. Conducted code reviews, mentored junior engineers, and promoted best practices in clean code and unit testing.

Staff Software Engineer at R3

May 1, 2024 - September 15, 2025

Designed and implemented interoperability patterns (atomic swaps, burn & mint) using Java, Kotlin, and Python microservices for cross-chain interoperability on the Corda DLT platform. Developed CorDapps for managing digital currencies and cross-ledger transactions. Architected and implemented event-driven systems using Kafka to coordinate cross-chain events. Built CI/CD pipelines using Jenkins, publishing Docker images and Helm charts. Developed responsive front-end interfaces using React JS and provided technical mentorship to junior developers.

Lead Software Engineer at Pollinate International

August 1, 2022 - September 15, 2025

Led a Data Ingestion team and delivered data ingestion solutions for banks. Implemented real-time data pipelines with Kafka and batch processing with Spark to ingest, transform, and enrich data. Built microservices for data ingestion and enrichment and developed UI using ReactJS.

Senior Software Engineer at Clim8 Invest

April 1, 2021 - September 15, 2025

Delivered the Clim8 app launch and led a team to develop microservices, designed microservices communications and the testing strategy. Managed Jenkins-based CI/CD pipelines and production environments.

Senior Software Engineer at Cognizant Worldwide

October 1, 2019 - September 15, 2025

Led a development team of 4 developers and 2 testers; collaborated with third parties for integrations; worked on end-to-end full-stack development. Designed microservices with Spring Boot and REST API; built CI/CD pipelines on Azure; provided mentoring. Client work included Clear Channel UK (Creative Management System) and O2 UK (e-commerce).

Senior Software Engineer at Jaja Finance

January 1, 2025 - Present

Led the design and implementation of the Enrichment feature by integrating with Bud's open banking and data intelligence platform to enhance real-time transaction insights through categorization, subscription detection, and regular payment identification. Collaborated with product, backend, frontend, and DevOps teams to deliver a robust, scalable enrichment pipeline. Led code reviews and promoted clean code and unit testing practices (SOLID, DRY, KISS).

Staff Software Engineer at R3

May 1, 2024 - October 6, 2025

Designed and implemented interoperability patterns (atomic swaps, burn & mint) for cross-chain solutions on the Corda distributed ledger platform using Java 17, Kotlin and Python microservices. Developed CorDapps; architected event-driven systems using Kafka; built CI/CD pipelines using Jenkins and Helm charts to deploy on Kubernetes. Developed the web interface in ReactJS.

Lead Software Engineer at Pollinate International

August 1, 2022 - October 6, 2025

Led Data Ingestion team and delivered solutions for National Australian Bank. Architected Kafka and Spring Boot microservices with Java, Cassandra; built robust pipelines for real-time data processing, ingestion, transformation, and enrichment. Drove cross-functional collaboration to align solutions with business objectives. Enhanced platform usability with responsive UI development using ReactJS.

Lead Software Engineer at Clim8 Invest

April 1, 2021 - October 6, 2025

Led the launch of Clim8’s mobile app; Architected and developed Spring Boot microservices for scalable and secure operations. Managed CI/CD pipelines with Jenkins, Docker and Kubernetes. Integrated payment gateways and third-party services (True Layer, Equifax, OneID) for KYC/AML compliance.

Senior Software Engineer at Cognizant Worldwide

October 1, 2019 - October 6, 2025

Led a development team of 4 developers and 2 testers; managed and collaborated with third parties for integrations. Worked on end-to-end full-stack backend and UI development. Designed microservices with Spring Boot and REST API and Apache Camel. Developed and managed CI/CD pipelines on Azure. Mentored developers and juniors. Client projects included Clear Channel UK (Creative Management System) and O2 UK (O2 e-Commerce).

Senior Software Engineer at Jaja Finance

January 1, 2025 - Present

Led the design and implementation of the Enrichment feature for Jaja Finance, a UK-based digital credit card provider. Integrated with Bud’s open banking and data intelligence platform to enhance real-time transaction insights, including category enrichment, subscription detection, and regular payment identification. Designed microservices using Java 21, Spring Boot 3, Kafka, REST APIs, AWS, Docker, OpenShift, and Kubernetes; ingested and enriched transaction data from Bud; Collaborated with Product, Backend, Frontend, and DevOps teams to deliver a robust, scalable enrichment pipeline; led code reviews and promoted clean code and solid testing practices (SOLID, DRY, KISS).

Staff Software Engineer at R3

May 1, 2024 - October 6, 2025

Designed and implemented interoperability patterns (e.g., atomic swap, burn & mint) using Java 17, Kotlin, and Python microservices; developed CorDapps for managing digital currencies and cross-ledger transactions; architected event-driven systems using Kafka; built CI/CD pipelines with Jenkins, publishing Docker images and Helm charts to internal registries on Kubernetes; developed the web interface in ReactJS.

Lead Software Engineer at Pollinate International

August 1, 2022 - October 6, 2025

Led the Data Ingestion team and delivered solutions for National Australian Bank. Architected Kafka and Spring Boot, Java, Cassandra microservices and robust pipelines for real-time, large-scale data processing. Drove cross-functional collaboration to align solutions with business objectives. Developed data ingestion pipelines to ingest, transform, and enrich data, and contributed to responsive UI development with ReactJS.

Lead Software Engineer at Clim8 Invest

April 1, 2021 - October 6, 2025

Led the launch of Clim8’s mobile app and backend investment platform. Architected and developed Spring Boot microservices with REST APIs for scalable, secure operations. Managed CI/CD pipelines with Jenkins, Docker, and Kubernetes. Integrated payment gateways and third-party services (True Layer, Equifax, OneID) for KYC/AML compliance.

Senior Software Engineer at Cognizant Worldwide

October 1, 2019 - October 6, 2025

Led a development team of 4 developers and 2 testers; Managed integrations with third parties; Worked on end-to-end full-stack development; Designed microservices with Spring Boot, REST API, and Apache Camel; Developed and managed CI/CD pipelines on Azure; Mentored developers and juniors; Worked on O2 e-Commerce and Clear Channel UK (Creative Management System) projects; contributed to UI and testing.

Senior Software Engineer at Jaja Finance (Contract)

January 1, 2025 - Present

Led the design and implementation of the Enrichment microservices, integrating with Bud's open banking and data intelligence platform to enhance real-time transaction insights, including categorization, subscription detection, and regular payment identification. Coordinated with Product, Backend, Frontend, and DevOps teams to deliver a robust, scalable enrichment pipeline and conducted code reviews emphasizing clean code and solid testing (SOLID, DRY, KISS).

Staff Software Engineer at R3

August 1, 2022 - May 1, 2024

Designed and implemented interoperability patterns (e.g., atomic swap, burn & mint) using Java 17, Kotlin, and Python microservices. Developed CorDapps and architected event-driven systems with Kafka for cross-chain coordination. Built CI/CD pipelines with Jenkins, Docker, and Helm charts; contributed to the web interface using ReactJS.

Lead Software Engineer at Pollinate International

April 1, 2021 - August 1, 2022

Led a Data Ingestion team and delivered a solution for National Australian Bank. Architected Kafka and Spring Boot, Java, Cassandra microservices and robust pipelines for real-time, large-scale data processing; drove cross-functional collaboration to align solutions with business objectives and enhanced UI usability with ReactJS.

Lead Software Engineer at Clim8 Invest

October 1, 2019 - April 1, 2021

Led the launch of Clim8’s mobile app and backend services. Architected and developed Spring Boot microservices with REST APIs for scalable operations; managed CI/CD pipelines with Jenkins, Docker, and Kubernetes. Integrated payment gateways and third-party KYC/AML services (True Layer, Equifax, OneID).

Senior Software Engineer at Cognizant Worldwide

August 1, 2013 - October 1, 2019

Client: Clear Channel UK. Led a development team of 4 developers and 2 testers; managed third-party integrations; contributed to end-to-end full-stack backend and UI development. Designed microservices with Spring Boot, REST APIs, and Apache Camel; managed CI/CD on Azure; mentored juniors.