Robert Lujo
Verified Expert in Engineering
Ajax Developer
Robert has worked as a freelancer since 1997. He has completed numerous projects of various sizes in a variety of domains. He has found success in many roles including lead developer, architect, project manager, and DB admin. He values proactivity, a thorough understanding, and solid solutions.
Portfolio
Experience
Availability
Preferred Environment
Bash, Git, Vim Text Editor, OS X
The most amazing...
...thing I've ever created is a morphological, inflectional, and lemmatization engine for the Croatian language.
Work Experience
Co-owner, Director
Lujo & Lujo d.o.o.
- Managed the entire software product delivery process from sales to product support.
- Created a specialized application for the monitoring, remote configuring, and upgrading of smart house systems.
- Developed web services for an insurance company for integration with other legacy systems in their trusted network.
- Built a public social web application featuring a registry of famous people, including names and surnames.
Senior Software Engineer, Project Manager
Adacta d.o.o.
- Worked as a freelancer on two software products for insurance businesses that were installed in several insurance companies. Adapted and extended the products.
- Designed and implemented the core of a commission system for a big insurance company. Directed further development of the system.
- Established a new development system, greatly increasing the productivity of the team. Improved all phases, including initial setup, build, merge, automatic deployment, and DB migration.
- Worked as project manager for the implementation of a product for an insurance company.
- Established and served as admin for a code review system featuring CI with unit testing and integration with the deployment system.
Head of Development, Project Manager
Eu Informatika d.o.o.
- Built a team of engineers.
- Created a software project management system.
- Implemented a quality assurance system.
- Created a web framework for pluggable applications using Django.
- Created a mini-OLAP reporting web application.
- Implemented a message broker web system.
- Created a web application for multimedia mobile marketing.
- Implemented a management web application for distributed long running processes.
- Implemented a public web application for tracking work time.
- Migrated an existing enterprise application product to a new development platform which involved the creation of a Django model generator for all enterprise application database tables.
Developer
Combis d.o.o.
- Led training on "Security in Public Network" including secured protocols, SSL, HTTPS, SSH, cryptography, signing, encryption, authentification, PK infrastructure (CA, certificates), etc.
- Created a VoIP pilot application using Cisco VoIP phones and Java.
- Developed using the Java stack, including web, JEE (JEE, EJB, IBM WebSphere app. server, etc.), standard edition, Swing, RPC, JMS, and more.
- Created a light ORM for unit test mocking with an API compatible with EJB.
Lead Developer
Sunce Osiguranje d.d.
- Implemented a new enterprise information system in the company. Promoted to technical project leader. Brought the system to production, working with all aspects of the system.
- Customized the enterprise system, developed specialized applications, and reported on the demand of other company departments.
- Promoted to lead engineer after the IT department was joined by new members. Was responsible for problem analysis, solution design, project management, testing, and deployment. Introduced new team members to the system, including training and mentoring.
- Performed IBM DB2 database administration.
Developer
Koncar - INEM d.d.
- Performed basic system administration.
- Handled technical analysis and documenting.
- Developed specialized applications.
Student
Faculty of Electrical Engineering and Computing
- Volunteered in the Department of Computer Systems and Processes (RASIP). Worked on various projects mainly related to designing and analyzing embeddable digital components (microprocessors, programmable logic devices, printed circuit boards) and low-level system programming.
- Created a video digitizer ISA card and software GUI application (input - analog B/W video signal, output - digitalized picture in levels of gray).
student
Dubrovnik High School, Croatia
- Developed a simple student information system (volunteered) first released in Pascal and later rewritten in Clipper.
Experience
text-hr - Morphological/Inflection/Lemmatization Engine for Croatian language
https://pypi.python.org/pypi/text-hr/0.18text-sentence - text segmentation library (word, sentence)
https://pypi.python.org/pypi/text-sentenceInput: text, list of known names and abbreviations. Output: list of tokens. Each token has a type as well as other attributes (i.e. is word, is number, is roman number, is sentence end, is abbreviation, is name, is contraction, is end of chapter, etc.).
permset - simple utility script to manage \*nix file and directory permissions
https://pypi.python.org/pypi/permset/Common workflow:
1. Calculate permission patterns (permset), save them to root/.permset (permset --save).
2. Compare current permissions with saved patterns (permset), if any difference found, apply patterns (permset --set) or overwrite existing patterns with new ones (permset --save).
Mobile Interaction System (MIS)
System for running and monitoring long running processes
System for messaging and alerting
Public web application for work time tracking
Management application for remote configuring of smart house systems
Groupby Hierarchy Tree | Python Recipe
https://code.activestate.com/recipes/535129-groupby-hierarchy-tree/Decorator Used to Enable Security in XML-RPC Calls
Reached top 200 on 4clojure.com
StackOverflow - collected over 1000 reputation points in short period of time
http://stackoverflow.com/users/565525/robert-lujoCreating ORM systems and contributing adapters for Python/* ->IBM DB2
https://code.djangoproject.com/ticket/6995Links:
- SQLAlchemy adapter for DB2: http://www.sqlalchemy.org/trac/ticket/567
- Django adapter for DB2: http://code.djangoproject.com/ticket/6995
- Contribution to South: http://south.aeracode.org/search?q=trebor74hr
- Contribution to official IBM DB2 Python, Django, SQLAlchemy adapters: http://code.google.com/p/ibm-db/issues/list?can=1&q=robert
- Contribution to unofficial pPython db2 adapter: http://sourceforge.net/p/pydb2/patches/14/
Skills
Languages
Python, C, SQL, CSS, Bash, Visual Basic, AWK, JavaScript, Visual Basic 6 (VB6), Excel VBA, Clarion, Assembler, Pascal, Clipper, dBASE, C#, Java, Ruby, Go, Clojure, C++
Frameworks
Django, Adobe Flex, Bootstrap, Flask
Libraries/APIs
jQuery, wxWidgets, SQLAlchemy
Tools
Subversion (SVN), Trac, Git, Crucible, Vim Text Editor, Mercurial, Jira, Jenkins, GIS
Paradigms
Object-oriented Programming (OOP), Evolutionary Database Design, Test-driven Development (TDD), Continuous Integration (CI), Agile Software Development, REST, Functional Programming, Distributed Programming, OLAP
Platforms
Windows, MacOS, Linux, OS X, Android, Google App Engine
Storage
IBM Db2, SQLite, Microsoft SQL Server, MySQL, NoSQL, PostgreSQL, XML-RPC
Other
Regular Expressions, Ajax, Natural Language Processing (NLP), GPT, Generative Pre-trained Transformers (GPT), Encryption, Security
Education
Master of Science (M.Sc.) Degree in Computer Science
University of Zagreb, Faculty of Electrical Engineering and Computing - Zagreb, Croatia
Master of Electrical Engineering and Computing (Mag.Ing.) Degree in Computer Engineering
University of Zagreb, Faculty of Electrical Engineering and Computing - Zagreb, Croatia
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
Share your needs
Choose your talent
Start your risk-free talent trial
Top talent is in high demand.
Start hiring