
Ioana Catalina Botezatu
Senior Java Fullstack Engineer
Salary / Daily rate
Iași, Romania
Freelance, open to permanent contract
Skills
Languages
About me
Intro
Senior Java Fullstack Engineer with 10+ years developing enterprise solutions for global companies like Deutsche Bank, TripAdvisor, and Oracle. Proven track record of achieving 1000x performance improvements and 900% automation increases through microservices and cloud architecture. Specialized in Java/Angular/AWS development with expertise in delivering scalable, secure enterprise applications.
Work experience
Senior Java Engineer
Austrian Power Grid
Dec 2024 - Present
1 year 11 months
💻 The client needed a more stable and friendly way of planning, monitoring and coordinating the electricity flow and framework. They needed a more transparent, secure way of working as they were previously relying a lot on emails with attachments being sent. ▪️Insured a 100% transparency to what is being planned and to the whole flow for determining / negotiating the prices by making it all available in the application for the users with the right amount of privileges. ▪️Gained a 7x increase in security by moving discussions / documents / plans to an application with a high number of security levels, instead of keeping it available via email. ▪️Decreased the human error by 1000% by applying constraints on the process that needs to be followed for different actions and by doing all energy and price calculations automatically inside the application.
Senior Java Fullstack Developer
Remote WorkFreelance
Nov 2021 - Present
5 years
Remote, OR 97458, USA
💻 I work as a Java fullstack developer / consultant / contractor / freelancer and help businesses develop their enterprise products. ✅ My programming language of choice is Java for backend solutions, using mainly Angular framework for frontend, but I have also done Python, Oracle and React development when needed. 🤝 I am an avid learner always looking for the next problem to solve!
Senior Java Engineer
Tripadvisor
Feb 2024 - Dec 2024
11 months
💻 The client, one of the biggest players in the online travel market, needed a way to gain more users and contributors by becoming a more trusted source for travel and experiences. ▪️ Gained a 2x increase in the number of autobaning the used based on taking into consideration their historical reports of illegal content. ▪️Speed up the unban process by 400% by calculating almost in all scenarios an automatic decision if the user should be 'forgiven'/'given a second chance' ▪️ 99% cleanup of bots that were posting illegal content and reviews by developing a way
Senior Java Engineer
Atruvia AGFreelance
Nov 2021 - Jan 2024
2 years 3 months
Remote, OR 97458, USA
💻 The client, a German IT Services provider for a major cooperative banking network, needed a way to decrease the need for human intervention in the process of providing permissions to a third party on a customer's account to an absolute minimum. ◾ Decreased the number of permission-providing flows where a bank employee is needed by 900% by automating the process of sending and receiving documents, legitimating the new customer. ◾ Gained a 3x increase in performance by decoupling the logic and using microservices and kafka events to automate the permission-providing flow.
Senior Java Software Engineer
Deutsche Bank
Sep 2018 - Oct 2021
3 years 2 months
Bucharest, Romania
Banking Anti Financial Crime Application 💻 The client, a leading German banking company, needed a way to filter out suspicious transactions and notice the appropriate agencies when blacklisted customers try to make a transaction with the bank. ◾ Gained an increase of 1000x in performance by switching from pl/sql logic to a scripting language. ◾ Boosted stability by 40% by designing a custom-tailored module of a fallback mechanism with retrials, backups, recoveries and error notification systems. ◾ Increased the response time to take action from 1 week to under 1 minute by switching from manual to automatic response flow. A custom response was triggered when a suspicious activity was noticed and was dependent on the type of activity.
Software Architect
Jive SoftwareFreelance
Jan 2017 - Aug 2018
1 year 8 months
Bucharest, Romania · Remote
Social Intranet Platform 💻 The client, a leading global insurance company, had an intranet platform, but it lacked the resources to make it appealing and stable for its employees. ◾ Improved user retention by 200% by switching the UI to Angular and redesigning the UX. ◾ Gained a 6x increase in stability by moving services to the Amazon cloud. ◾ Increased the number of active users by 10x by providing a plugin for graphical metrics regarding the views/likes of a post and providing tools for encouraging communication amongst themselves.
Java Software Engineer
Oracle
May 2015 - Dec 2016
1 year 8 months
💻 The client was looking for a way of increasing the satisfaction of its customers when contacting their support department. They wanted a way of automatically detecting the user that contacted them through all their possible contact methods. ▪️Improved by 90% the employee productivity & efficiency, as well as customer satisfaction, by automating most of the manual processes and making the identification process automatically ▪️Eliminated 60% of security vulnerabilities by delivering a state-of-the-art solution and resolved critical blocker backwards-compatibility problems related to classpath handling and product installation.
Senior Java Fullstack Developer
1&1 Internet AG
Feb 2011 - May 2015
4 years 4 months
Bucharest, Romania
Domain Selling Application 💻 A leading German domain-selling company wanted to gain more market share, increase the number of subscriptions of each user for different subscriptions and decrease the number of calls to their call center. ◾ Decreased the number of calls to the contact center by 80% by reorganizing the UX and making it more intuitive and easier to access. ◾ Gained a 5x increase in the number of subscriptions that existing customers were buying by implementing “one-click” actions. ◾ Gained a 4x increase in the number of new customers by preparing the launch date of a new top-level domain with lightning-fast services that were able to make a reservation of the new top level domain ahead of our competitors
Education
University of Bucharest
Master's degree
2016 - Present
10 years 10 months
Universidad de Almería
Bachelor's degree
2010 - 2011
1 year 1 month
University of Bucharest
Bachelor
2008 - 2011
3 years 1 month
National College, Iasi
Mathematics and Computer Science
2000 - 2008
8 years 1 month