Senior Java Consultant
GetYourGuide
Skills
Experienced Lead Java Engineer / Architect / Contractor / Freelancer with 15+ years of experience in leading, designing, developing and operating large scale applications using microservices and cloud technologies.
About my skills:
✅ Back-End
• Java, Spring Framework
• Scala, Play Framework
• SQL, NoSQL, JPA
• Elasticsearch, Redis, Kafka
• AWS, Kubernetes, Docker
• CI/CD, Jenkins
✅ Software Architecture
• Distributed Systems
• Microservices
• SOLID Principles
• Database Design
Only interested in remote work.
About my skills:
✅ Back-End
• Java, Spring Framework
• Scala, Play Framework
• SQL, NoSQL, JPA
• Elasticsearch, Redis, Kafka
• AWS, Kubernetes, Docker
• CI/CD, Jenkins
✅ Software Architecture
• Distributed Systems
• Microservices
• SOLID Principles
• Database Design
Only interested in remote work.
Project history
01/2021
-
07/2022
GetYourGuide | Remote
The client, the number one travel experiences booking plaorm, was running behind the
schedule with a microservices migraon and risking compromising other projects.
* Ensured a 100% successful migraon by working closely with the team members and
other stakeholders.
*Improved the exisng search API performance by 100% by opmizing the search
engine internals and reduced the data updates delay to 0 by enabling mul-version
deployments of data processing services.
Skills: Distributed systems design, Microservices, Java 17, Spring, Kubernetes, Docker,
Elascsearch, Postgres, Kaa Streams, AWS, Datadog.
The client, the number one travel experiences booking plaorm, was running behind the
schedule with a microservices migraon and risking compromising other projects.
* Ensured a 100% successful migraon by working closely with the team members and
other stakeholders.
*Improved the exisng search API performance by 100% by opmizing the search
engine internals and reduced the data updates delay to 0 by enabling mul-version
deployments of data processing services.
Skills: Distributed systems design, Microservices, Java 17, Spring, Kubernetes, Docker,
Elascsearch, Postgres, Kaa Streams, AWS, Datadog.
01/2019
-
10/2021
Senior Java Engineer
Holidu
Holidu | Germany
The client, one of the fastest-growing travel tech companies worldwide, was struggling to
increase its growth rate due to sll using an old code base that was both extremely complex
and hard to scale.
* Reduced the implementaon me for new features by 2x-3x by working on simplifying
the exisng code base and defining the new bounded contexts for the new
microservices architecture.
* Increased the conversion rate by 15% and the applicaon throughput to over 1 million
unique sessions per day by working closely with the product owners on building new
features and constantly implemenng performance improvements for databases,
caches, search engine.
Skills: Distributed systems design, Microservices, Java, Spring, Play Framework,
Kubernetes, Docker, Elascsearch, Redis, Postgres, Kaa, AWS
The client, one of the fastest-growing travel tech companies worldwide, was struggling to
increase its growth rate due to sll using an old code base that was both extremely complex
and hard to scale.
* Reduced the implementaon me for new features by 2x-3x by working on simplifying
the exisng code base and defining the new bounded contexts for the new
microservices architecture.
* Increased the conversion rate by 15% and the applicaon throughput to over 1 million
unique sessions per day by working closely with the product owners on building new
features and constantly implemenng performance improvements for databases,
caches, search engine.
Skills: Distributed systems design, Microservices, Java, Spring, Play Framework,
Kubernetes, Docker, Elascsearch, Redis, Postgres, Kaa, AWS
12/2017
-
06/2019
Senior Java Engineer (Tech Lead)
Cognizant Sovision
(5000-10.000 employees)
Cognizant Sovision| Romania / USA
The client, a global consulng company, was in danger of losing an important new client
due to lacking a team located in New York to take over the development of a new plaorm
for personal loans and savings accounts.
* Ensured a 100% successful handover and increased the loan approval rate by 5% by
leading a fast-paced team of 4 developers into taking over on the current development
process and leading the integraon of a new external service.
* Reduced the me needed to build new spring boot microservices from 2 days to under
an hour by heavily contribung to a new commons library that incorporated all the
boilerplate code required to configure different system components.
Skills: Distributed Systems Design, People management, Microservices, Java, Spring,
Dropwizard, Kaa, MongoDB, JPA, Splunk
The client, a global consulng company, was in danger of losing an important new client
due to lacking a team located in New York to take over the development of a new plaorm
for personal loans and savings accounts.
* Ensured a 100% successful handover and increased the loan approval rate by 5% by
leading a fast-paced team of 4 developers into taking over on the current development
process and leading the integraon of a new external service.
* Reduced the me needed to build new spring boot microservices from 2 days to under
an hour by heavily contribung to a new commons library that incorporated all the
boilerplate code required to configure different system components.
Skills: Distributed Systems Design, People management, Microservices, Java, Spring,
Dropwizard, Kaa, MongoDB, JPA, Splunk
01/2016
-
11/2017
Senior Java
EngineerMar; Docprocess
Docprocess| Romania
The client, a local market leader for electronic documents interchange processes, was
faced with a possible failure in entering new markets due to the current product being
unstable, unscalable, and lacking the ability to handle a major increase in the number of
clients.
* Reduced incidents rate from several per week to less than 2 per year by conducng an
in-depth analysis on the current system and fixed the exisng design flows and
bolenecks.
*Improved systems document processing speed 100x by designing the new
microservices architecture of the new documents processing engine, ensuring there
were no bolenecks and that every component could be scaled horizontally.
Skills: Distributed systems design, Microservices, Java, Scala, Mesosphere, Docker, Spring
Boot, Play Framework, Apache Camel, Kaa, Postgresql, JPA
The client, a local market leader for electronic documents interchange processes, was
faced with a possible failure in entering new markets due to the current product being
unstable, unscalable, and lacking the ability to handle a major increase in the number of
clients.
* Reduced incidents rate from several per week to less than 2 per year by conducng an
in-depth analysis on the current system and fixed the exisng design flows and
bolenecks.
*Improved systems document processing speed 100x by designing the new
microservices architecture of the new documents processing engine, ensuring there
were no bolenecks and that every component could be scaled horizontally.
Skills: Distributed systems design, Microservices, Java, Scala, Mesosphere, Docker, Spring
Boot, Play Framework, Apache Camel, Kaa, Postgresql, JPA
01/2015
-
12/2016
Senior Java Engineer (Co-founder)
myDog
myDog | Romania
The client, a passionate dog owner, was having a hard me scheduling playdates for his
dog due to lacking a dedicated community app to help connect dog owners in the area.
* Assured a 100% successful release of the applicaon's first version and increased the
user base to over 10k in the first 12 months by being acvely involved in the technical
development process by working closely with the other associates to validate the
product and gather new ideas.
Skills: Product research, Java, Scala, Javascript, Spring, Play Framework, MongoDB, MySql,
JPA
The client, a passionate dog owner, was having a hard me scheduling playdates for his
dog due to lacking a dedicated community app to help connect dog owners in the area.
* Assured a 100% successful release of the applicaon's first version and increased the
user base to over 10k in the first 12 months by being acvely involved in the technical
development process by working closely with the other associates to validate the
product and gather new ideas.
Skills: Product research, Java, Scala, Javascript, Spring, Play Framework, MongoDB, MySql,
JPA
10/2011
-
06/2016
Senior Java Engineer (Tech Lead)
Codesphere
Codesphere| Romania
The client, a young soware company, was struggling to survive aer a split-up due to
now lacking the team size and credibility required to finish ongoing projects and find new
clients.
* Successfully delivered over 10 different projects by leading one of the teams into
communicang closely with the clients and developing each project from scratch.
Skills: Java, Scala, Javascript, Spring Framework, Liferay Portal, IBM Websphere, MySql,
PostgreSql, JPA
The client, a young soware company, was struggling to survive aer a split-up due to
now lacking the team size and credibility required to finish ongoing projects and find new
clients.
* Successfully delivered over 10 different projects by leading one of the teams into
communicang closely with the clients and developing each project from scratch.
Skills: Java, Scala, Javascript, Spring Framework, Liferay Portal, IBM Websphere, MySql,
PostgreSql, JPA
Certifications
Local Availability
Only available for remote work
Available only for remote contracts
