Recommended expert

Nikunjkumar Parmar

Senior Java Backend Developer

Nikunjkumar Parmar
Kleinmachnow, Germany

Experience

Mar 2024 - Present
1 year 11 months

Senior Java Backend Developer

Questax Professionals GmbH

  • Provide the Price Listing Service Team Price for all cars and vans in different markets
  • Adjust market-specific requirements like taxes, government subsidies, campaigns
  • Import, synchronize and store new prices for all new and existing cars in Redis datastore
  • Support our product and handle on-call duties
  • Daily operations, developing new features, bug fixing
  • Pair programming, code reviews, mob programming
  • Develop POCs for new ideas
  • Maintain and extend the backend
  • DevOps tasks
  • Perform Kubernetes updates
  • Adjust and further develop Kubernetes resources
  • Develop and customize Helm charts
  • Adjust and update ArgoCD
  • Maintain, adjust and further develop CI/CD pipelines
Mar 2021 - Dec 2023
2 years 10 months

Senior Java Software Developer

Thryve

  • Migrated a monolithic system to a microservice architecture using Spring Boot and Kotlin
  • Further developed the insurance domain products based on Kotlin and AngularJS
  • Code reviews, pair programming, mob programming
  • Coach and support a junior developer in the team
  • Maintain and extend backends
  • Support the DevOps team
Sep 2020 - Dec 2020
4 months

Fullstack Senior Software Developer

Hays AG

  • Migrated a monolithic system (Node.js) to a microservice architecture with Spring Boot and Kotlin
  • Maintained and extended a backend for an iOS and Android app
Feb 2019 - Sep 2020
1 year 8 months

Fullstack Senior Software Developer

Becon Gmbh

  • Frontend development with ReactJS, nginx and Node.js
  • Developed new microservices for the traffic management system
  • Technology research and selection, effort estimation and design
  • Feature development based on stakeholder requirements
  • Bug fixing and daily tasks
  • Message-driven API design
  • Software development using DDD and TDD
  • Integration with other Siemens microservices
Sep 2018 - Dec 2018
4 months

Senior Software Developer

MO DIS

  • Provided technical support to the big data team
  • Event sourcing and event mapping to other formats
  • Supported the data science team
  • Schema migration in MongoDB
Feb 2018 - Aug 2018
7 months

Senior Software Developer

VARIOUS IT

  • Design and implementation of APIs
  • Refactoring and migrating legacy code into a modern tech stack
  • POC for an ETL pipeline with different technologies
  • Refactoring and redesign of legacy code
  • Continuous integration & deployment to a Kubernetes cluster
May 2017 - Dec 2018
1 year 8 months

Senior Software Developer

PENTACOR GMBH

  • Design and implementation of APIs
  • Software architecture design
  • Continuous integration & deployment to a Kubernetes cluster
May 2016 - May 2017
1 year 1 month

Senior Software Developer

DIS AG

  • Implementation of the API for shipment batch upload and complaint upload for partners
  • Feature development
  • Refactoring and redesign of the software architecture
  • Continuous integration & deployment
  • JSF web framework, migration from PrimeFaces 3.0 to the current version
  • Migration of the web application from JDK 6 to JDK 8
  • Centralization of logs using an ELK stack
  • Introduction and integration of Scala into the existing codebase
May 2013 - May 2016
3 years 1 month

Senior Software Developer, Team Lead

MeteoGroup GmbH

  • New development and maintenance of the central backbone service that provides weather-related information to all clients in various programming languages
  • Development and technical support in various projects that consume the backbone content API
  • Design and implementation of new business objects for the NoSQL database (MongoDB)
  • Frontend development for analyzing and monitoring the weather data caches
  • Partial team leadership
  • Evaluating solutions submitted by applicants for the coding assignment in the hiring process
  • Mentoring and training new, inexperienced Java developers
  • Researching and implementing in-memory caching solutions
  • Migration of legacy and new code to AWS
Nov 2011 - May 2013
1 year 7 months

Senior Software Developer

EHOTEL AG

  • Integration of the SOLR search engine into the existing web portal
  • Development and maintenance of a JMS-based search application
  • Development and maintenance of dynamic database updates using JMS
  • Development and maintenance of product features
  • Data modeling for new and existing business objects
  • Frontend development with Tapestry
Nov 2010 - Nov 2011
1 year 1 month

Software Consultant

The Bakery GmbH

  • Development of an order entry tool for customer order management used by call center agents
  • Analysis of user stories and definition of required business processes
  • Implementation of the business processes in Java
  • Implementation of the shopping cart in the order entry tool
  • Implementation of coupon redemption
  • Frontend development with JavaScript and the Intershop Specific Markup Language (ISML)
  • Bug fixing and maintenance of the Intershop e-commerce platform
Aug 2007 - Nov 2010
3 years 4 months

Java Developer

Synchronica Software GmbH

  • Development and maintenance of backend connectors for popular PIMs like MS Exchange, Sun Java Email Server, Lotus Domino, Google
  • Development and maintenance of a server-side XML filter for device-specific data delivery using XML and XSD
  • Participation in the Sun Microsystems ODS (Open Data Sync) project
  • Development of a SyncML client for file synchronization
  • Development of a SLAMD job for server-side measurements of load test performance
  • Technical support to Sun Microsystems for integration of the J2ME client
  • Mobile SyncML client development with J2ME
Feb 2007 - Jul 2007
6 months

Java Developer and Software Tester

Reutax AG

  • Automation of test cases in Java for embedded systems
  • Development of a test case interpreter to control the embedded system on-board unit (OBU)
  • System testing of the OBU (on-board unit) and bug fixing in new software versions
Feb 2001 - Aug 2003
2 years 7 months
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Network Solutions Private Limited

  • Network administration and VoIP configuration
  • Integration of Motorola routers into Cisco routers
  • OSPF routing protocol configuration and troubleshooting
  • Maintenance using NMS and HP OpenView

Summary

  • Backend software developer with over 15 years of experience
  • Experience in team leadership, software architecture design and refactoring
  • Experience in DevOps (AWS, Google Cloud, Kubernetes, Digital Ocean)
  • Master's degree in Electrical Communication Engineering

Skills

  • Java (21+) – Spring Boot, Kotlin
  • Devops – Kubernetes, Helm, Terraform, Argocd, Ci/cd
  • Javascript, Node.js, Express.js, React, Redux, React-nat
  • Cloud Tech – Docker, Aws, Google Cloud, Kubernetes, Digital Ocean
  • J2ee – Jsf, Jsp, Jcr, Jpa
  • Tools – Eclipse, Intellij, Jira, Confluence
  • Testing – Junit, Spring Junit, Testng
  • Build Tools – Maven, Sbt, Gradle
  • Logging – Log4j, Slf4j
  • Web Components – Jsp, Servlets
  • App Server – Spring-boot, Akka-http, Java Spark, Glassfish
  • Rdbms – My Sql, Postgresql, Hsql (Hypersql Database), Oracle
  • No-sql – Mongodb, Elasticsearch, Hadoop
  • Version Control – Git
  • Operating Systems – Windows, Linux, Unix, Mac
  • Web-frameworks – Spring, Tapestry, Jsf, React, Angular
  • Search Engine – Elastic Search, Solr Server, Lucene

Languages

German
Advanced
English
Advanced

Education

Oct 2004 - Jun 2007

University of Kassel

Master of Science, Electrical Communication Engineering · Electrical Communication Engineering · Kassel, Germany

Oct 1996 - Jun 2000

MS University Baroda

Bachelor of Engineering, Electrical Engineering · Electrical Engineering · Vadodara, India

Certifications & licenses

CCNA (Cisco Certified Network Associate)

CCNP (2 exams passed)

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