Adrian Simion

Freiberuflich, Senior Java Developer • Contractor • Freelancer, Remote Work

Bucharest, Romania

About me

👉I am a senior Java Developer / Consultant / Contractor / Freelancer with 𝟏𝟓+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞. I use my experience, skills and passion to architect, design and implement top-of-the-line software solutions for companies worldwide. ⚙️About my skills: ✔️ Backend • Java • Python • Spring (Spring Boot, Spring Security, Spring AOP) • REST API • JSON ✔️ Databases • MySQL • PostgreSQL • Oracle • Microsoft SQL • Mongo DB ✔️ Infrastructure • Linux, AWS, GIT • Kafka, RabbitMQ • SQL, Hibernate, NHibernate, Entity Framework • Kubernetes, Docker • CI / CD, Jenkins ✔️ Software Architecture • Distributed Systems • Microservices 🌍 Only interested in remote work. 🤝 𝐋𝐞𝐭'𝐬 𝐜𝐨𝐧𝐧𝐞𝐜𝐭 if you think my expertise could help your organization. 📞 Phone: +40 736 4747 16 📧 Email: 💬 Skype:


BMC Remedy
CGI (beginner)
Perl (beginner)
IntelliJ IDEA
UML Development Environments: - Eclipse
Borland Java Builder
Visual C++
Borland C++
Borland Delphi
Borland C Builder
Microsoft Access
VBScript for Visual Studio (beginner)
Codewarrior RDBMS: - SQL S
MySQL Server
Oracle Application Servers - Tomcat
BEA Weblogic
WebSphere Developer Tools: - Subversion
Visual SourceSafe
Microsoft Visio
Rational Rose
Jasper Reports
Crystal Reports
AllFusion Harvest Change Manager
Maven Testing Tools :- JUnit
Mercury Quality Center Web Design: - Microsoft


Professional experience for Adrian Simion

  • Current 5 years and 3 months, since Jan 2018

    Senior Software Engineer (REMOTE)


    The client, active in the supply chain / additive manufacturing domain, was dealing with decreasing revenues, due to having difficulties in prioritizing the parts that were relevant to the 3d printing techniques. Increased the digitization process by 30% by designing, architecting, and developing a new analytics module, unique to the supply chain world and subject to ip. Skills: java python git amazon web services (aws) elasticsearch rest apis maven microservices spring framework mysql

  • Current 6 years and 3 months, since Jan 2017

    Senior Java Developer • Contractor • Freelancer

    Remote Work

    I work as a consultant/contractor/freelancer and help businesses develop their enterprise products. My programming language of choice is Java (backend solutions using mainly Spring framework) but I have also done Python, UI & PHP development when needed. I am continuously looking for new challenges and self-improvement. I continuously seek new challenges and self-improvement while providing value to clients' businesses. Skills: Java · Python · SQL · AWS · Elasticsearch · Microservices · Spring Framework

  • 2 years and 1 month, Jan 2017 - Jan 2019

    Senior Java Developer / Architect (REMOTE)


    The client, a romanian software company active in the data analytics domain , was facing a problem with the internal product of the company as it lacked various modules for parsing and dealing with unstructured data. The new modules/plugins helped the company grow its customer base by 50% and also solved particular problems for each customer.... See more skills: java python git elasticsearch rest apis maven microservices oracle database spring framework, mysql

  • 6 months, Aug 2016 - Jan 2017

    Big Data Java Engineer


    The client, a leading digital and social game publisher, was wasting a significant amount of time, due to their platforms infrastructure not being able to process massive amounts of data daily. Decreased the processing time of the overall data by 30%, by implementing a java/springboot/microservices/docker-based solution, the daily volume being over 1 petabyte Skills: java git amazon web services (aws) elasticsearch rest apis maven microservices spring framework mysql

  • 2 years and 6 months, Jan 2014 - Jun 2016

    Software Architect / IT Project Manager

    European Commission (under contract)

    The client, a european institution, was wasting a great deal of time, due to a slower and uninformed decisional internal process concerning the member states, being unable to extract relevant information in an automated manner from the documents provided by the member states. Improved by 70% the accuracy of the automated analysis of unstructured data by designing, architecting, and implementing a software data cleansing system. Skills: java python rest apis maven microservices oracle mysql togaf

  • 11 months, Mar 2013 - Jan 2014

    Senior Engineer


    The client, a romanian software company active in the e-commerce domain , was facing a problem with the internal product of the company as it lacked various modules for interfacing with external e-commerce platforms. Increased the customer base of the client by 30% by developing new modules for interfacing with external e-commerce platforms skills: java rest apis maven microservices oracle database mysql

  • 4 years and 1 month, Mar 2009 - Mar 2013

    Senior Software Developer/Consultant

    Materna Information & Communications

    The client, a big player in the energy sector, was dealing with painfully slow internal decisions and poor client satisfaction, due to complex operational aspects of the internal flows of the company. Increased efficiency and response time by 60% from the moment that the new application based on a business process management solution became available. Skills: java rest apis maven oracle database spring framework mysql

  • 1 year and 1 month, Mar 2011 - Mar 2012

    Software Architect / Consultant (Collaborator)

    Areal Consultancy

    The client, a governmental institution related to the economical development of romania, was missing out on a significant amount of money, due to lacking centralization in the process of assessing projects for accessing european funds. Assured access to over 400m in european funds per year by designing an application from the ground up and enabling it to assess projects using financial calculus and through a centralized web application. Skills: java git rest apis oracle database spring framework mysql

  • 7 months, Aug 2008 - Feb 2009

    Software Developer

    Wittmann & Partner Computer Systems (Ropardo)

    The client, a company focusing on it software development was facing low customer satisfaction thus various customizations to the internal erp solutions were developed to adapt to the customer needs. Attracted 2 new customers in 6 months by helping the company continue projects & further develop the erp framework and gain traction in the market. Skills: java rest apis mysql

  • 2 years and 5 months, Feb 2006 - Jun 2008

    Programming Subject Matter Expert


    The client, a fortune 500 company, was struggling to scale the crm system for various load scenarios, due to lacking a proper internal stress testing framework leading to unstable product and poor client satisfaction. Decreased the loading and response time of the crm platform by a factor of 5, by developing a framework and putting the product through the stress test process, identified the bottlenecks and helped imprive the overall scalability of the product. Skills: java mysql

  • 6 months, Sep 2005 - Feb 2006


    DNA Software

    The client, a romanian telecom company, was facing slow internal responsiveness from employees, consequently wasting a significant amount of time, due to a missing means of aggregating internal company information. Improved internal response time and the overall customer satisfaction by 40% by centralizing the access to the intranet for the 800 employees of the customer by implementing a portal based on cas cleverpath suite. Skills: java mysql

Educational background for Adrian Simion

  • 2010 - 2016

    Computer Science

    Politehnica University of Bucharest

    Ph. D. Theme: “Intelligent Music Processing”. Related studies/courses: Information Retrieval, Knowledge Representation, Symbolic Statistical Learning, Semantic Web

  • 2008 - 2010

    Informatics, Information & Technology

    „Lucian Blaga” University of Sibiu

    Dissertation Topic: "Artificial Intelligence Algorithms for E-Business Solutions. Case study in Java".

  • 2000 - 2005

    Computer Science

    „Lucian Blaga” University of Sibiu

    Diploma Theme: "GSM Control" The control of a Windows process in real-time through a GSM terminal and the SMS service.

  • 1996 - 2000


    "Costache Negri" HighSchool, Tg. Ocna

    Diploma Theme: “Voyager” (a dual panel file manager with the following functions : swap(extended memory usage), mouse driver, keyboard and mouse testers, multimedia viewer for pcx, bmp, jpg, gif Image file types, and for wav audio files, etc)


  • English


  • Romanian

    First language

  • German


  • French



Software Development
Information Retrieval
Symbolic and Statistical Learning
Sofware architecture

Browse over 20 million XING members