Nikunjkumar Parmar - Senior Java Backend Developer, DevOps

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Kleinmachnow, Germany

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Experience

Mar 2024 - Present

2 years 7 months

Senior Java Backend Developer

Questax Professionals GmbH

Provide the Price Listing Service team with prices for all cars and vans in different markets
Adapt market-specific requirements such as taxes, government subsidies, campaigns
Import and synchronize new prices for all new and existing cars and store them in the Redis datastore
Support our product and on-call duty
Daily business, development of new features, bug fixing
Pair programming, code review, mob programming
Develop POCs for new ideas
Maintain and extend the backend
DevOps tasks
Run Kubernetes updates
Adjust and further develop Kubernetes resources
Develop and adapt Helm charts
Adapt and update ArgoCD
Maintain, adapt, and improve CI/CD

Mar 2021 - Dec 2023

2 years 10 months

Senior Java Software Developer

Thryve

Migration of a monolithic system to a microservice architecture with Spring Boot and Kotlin
Further development of insurance domain products based in Kotlin and AngularJS
Code review, pair programming, mob programming
Coaching and support for a junior developer in the team
Maintenance and extension of the backend
Support the DevOps team

Sep 2020 - Dec 2020

4 months

Fullstack Senior Software Developer

Hays AG

Migration of a monolithic system (Node.js) to a microservice architecture with Spring Boot and Kotlin
Maintenance and extension of 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
Development of new microservices for the traffic management system
Technology research and selection, effort estimates, and design
Feature development based on stakeholder requirements
Bug fixing and daily business
Message-driven API design
Software development according to DDD and TDD
Integration with other Siemens microservices

Sep 2018 - Dec 2018

4 months

Senior Software Developer

MO DIS

Technical support for the big data team
Event sourcing and event mapping into other formats
Support for 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 migration of legacy code to a modern tech stack
POC for an ETL pipeline with different technologies
Refactoring and redesign of legacy code
Continuous Integration & Deployment in 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 in 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 claims upload for partners
Feature development
Refactoring and redesign of the software architecture
Continuous Integration & Deployment
JSF web framework, migration from Primeface 3.0 to the current version
Migration of the web application from JDK 6 to JDK 8
Centralization of logs with the help of 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, which provides all customers with weather-related information 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 DB (MongoDB)
Frontend development for the analysis and monitoring of weather data caches
Partial team leadership
Evaluation of solutions submitted by applicants for the coding task in the hiring process
Support and training of new, inexperienced Java developers
Research and implementation of in-memory caching solutions
Migration of legacy code 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 staff
Analysis of user stories and definition of the needed 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 with XML, XSD
Work on 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 for Sun Microsystems for the 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

Network Solutions Private Limited

Network administration and VOIP configuration
Integration of Motorola routers into Cisco routers
OSPF routing protocol, configuration and bug fixing
Maintenance using NMS and HP Open View

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Insurance, Automotive, Tourism, Transportation, and Retail.

Information Technology

Insurance

Automotive

Tourism

Transportation

Retail

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Product Development, Operations, Supply Chain Management, Business Intelligence, and Quality Assurance.

Information Technology

Product Development

Operations

Supply Chain Management

Business Intelligence

Quality Assurance

Summary

Backend software developer with over 15 years of experience
Experience in team leadership, design and architecture of software systems, and factoring
Experience in DevOps area (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

Statistics

Experience

Total positions 14

Experience in Information Technology 16.5 y

Avg length 1 y 7 m

Longest experience 3 y 3 m

Expertise

Recent roles Senior Java Backend Developer, Senior Java Software Developer, Fullstack Senior Software Developer

Main industries Information Technology, Insurance, Automotive

Main business areas Information Technology, Product Development, Operations

Qualifications

Highest degree Master

Certifications earned 2

Profile

Member since

September 2025

Last update

September 2026

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Frequently asked questions

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Nikunjkumar is based in Kleinmachnow, Germany.

Nikunjkumar speaks the following languages: German (Advanced), English (Advanced).

Nikunjkumar has at least 21 years of experience. During this time, Nikunjkumar has worked in at least 8 different roles and for 14 different companies. The average length of individual experience is 2 years and 6 months. Note that Nikunjkumar may not have shared all experience and actually has more experience.

Based on recent experience, Nikunjkumar would be well-suited for roles such as: Senior Java Backend Developer, Senior Java Software Developer, Fullstack Senior Software Developer.

Nikunjkumar's most recent position is Senior Java Backend Developer at Questax Professionals GmbH.

In recent years, Nikunjkumar has worked for Questax Professionals GmbH and Thryve.

Nikunjkumar is most experienced in industries like Information Technology, Insurance, and Automotive. Nikunjkumar also has some experience in Tourism, Transportation, and Retail.

Nikunjkumar is most experienced in business areas like Information Technology, Product Development, and Operations. Nikunjkumar also has some experience in Supply Chain Management, Quality Assurance, and Business Intelligence.

Nikunjkumar has recently worked in industries like Insurance, Information Technology, and Automotive.

Nikunjkumar has recently worked in business areas like Information Technology, Product Development, and Operations.

Nikunjkumar holds a Master in Electrical Communication Engineering from University of Kassel and a Bachelor in Electrical Engineering from MS University Baroda.

Nikunjkumar has 2 certificates. These include: CCNA (Cisco certified Network associate) and CCNP (2 exams passed).

The availability of Nikunjkumar needs to be confirmed.

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Daily rate avg. 1145 €

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Median rate 1000 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.