Data Scientist/Researcher/Software Developer

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10999 Friedrichshain-Kreuzberg
12.11.2018

Kurzvorstellung

Python (Scipy, Numpy, matplotlib, Cython, Pandas, Sage), Java, JavaScript, C#, R, C, C++
Machine Learning, Statistics, Computational Mathematics, Statistical Genetics, Blockchain, Cryptography, Enterprise Software Development, Economics

Ich biete

IT, Entwicklung
  • Python
  • JavaScript
  • PostgresSQL
Forschung, Wissenschaft, Bildung
  • Informatik

Projekt‐ & Berufserfahrung

Software Developer
Assetmetrix, Munchen
3/2017 – 6/2017 (4 Monate)
Öffentliche Verwaltung
Tätigkeitszeitraum

3/2017 – 6/2017

Tätigkeitsbeschreibung

Celery integration, business rules engine implementation for transactions together with a UI (JQuery) for defining the configuring rules for business operations execution, integration of an audit log and implementation of unit tests for all of the backend, bug discovery and fixing. Python, Flask, Celery, SQL Server, Javascript.

Eingesetzte Qualifikationen

Microsoft SQL-Server (MS SQL), Python, JavaScript


Researcher
Huawei, Munchen
8/2016 – 3/2017 (8 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

8/2016 – 3/2017

Tätigkeitsbeschreibung

Research on information security and user privacy. Client tool implementation with Java, data analysis/machine learning with R, parallel numerical computations, simulations with Python (Cython, numpy), demo-as-a-service web app development using Gulp, Express Node JS, React JS, Material UI and data visualization using d3. Mathematical problem solving. Privacy tool developed to be used in all smartphones and tablets. https://www.huawei.eu/cyber-security

Eingesetzte Qualifikationen

Machine learning, Datenschutz, Java (allg.), Python, React (JavaScript library), JavaScript


Software Developer
Intel Corporation, Munchen
2/2016 – 6/2016 (5 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

2/2016 – 6/2016

Tätigkeitsbeschreibung

Softwareentwicklung mit Java (Guice, Guava) und Groovy.
Git version control, refactoring.

Eingesetzte Qualifikationen

Java (allg.)


Backend Engineer
microwork.io, Berlin
1/2016 – 2/2016 (2 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

1/2016 – 2/2016

Tätigkeitsbeschreibung

Entwicklung der Bitcoin zahlungssysteme.
Implementation of bitcoin payment system for microworkers.

Eingesetzte Qualifikationen

JavaScript-Frameworks, JavaScript


Software Developer
ascribe.io, Berlin
9/2015 – 12/2015 (4 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

9/2015 – 12/2015

Tätigkeitsbeschreibung

Full stack software development with Javascript (React JS) and Python, Postgres, AWS.

Eingesetzte Qualifikationen

PostgresSQL, Python, JavaScript


Scientific Adviser
www.microwork.io, San Jose
2/2015 – 7/2015 (6 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

2/2015 – 7/2015

Tätigkeitsbeschreibung

Software consultancy, advice on a decentralized automated remote micro work platform. Javascript code review, detecting bugs, re-factorization, and technology, solution advice. Specification of a blockchain and smart contracts using Thelonius blockchain framework, decerver distributed application server. Reputation system for workers based on Bayesian update. http://microwork.io/

Eingesetzte Qualifikationen

JavaScript-Frameworks


Backend Engineer
Sport - Thieme GmbH, Berlin
2/2015 – 7/2015 (6 Monate)
Dienstleistungsbranche
Tätigkeitszeitraum

2/2015 – 7/2015

Tätigkeitsbeschreibung

Implementing backend functionalities using php and mysql and performing data analysis using Python, data reporting, exporting using Propel ORM PHP. Analyzing the effect of delivery time on conversion, conversion of views to cart add, warehouse performance analysis, delivery service performance analysis, brand statistics. Implemented a generic data analysis framework in Python where one can stream data using Amazon Kinesis and connect to different databases and load and get data from them in a black box manner, perform data analysis, use machine learning techniques with visualisation. Wrote a generic web scraping tool and applied it to collecting shipping data from the shipping companies using Python. Python, PHP, MySQL, Amazon Web Services. http://www.sport-thieme.de/

Eingesetzte Qualifikationen

mySQL, Python, Cloud Computing, PHP


Freelance Backend Engineer, Colony, London, UK
http://colony.io/, London
8/2014 – 1/2015 (6 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

8/2014 – 1/2015

Tätigkeitsbeschreibung

Design and implementation of a crowd-founding platform where the decisions are to be made based on collective intelligence. Managed a junior developer. Basic web application functionalities (login, register, etc.), 3 types of voting methods, database methods/ functionalities, user profiles are designed and implemented together with new phenomena such as amplification/decay mechanism for propagation of a decision/suggestion, statistical significance for an election to finalise (multinomial Wilson score, covering collections, Dirichlet distributions - multivariate beta), a greedy algorithm for faster voting under user experience constraints, expectation maximization approach to gain skill points from decision making and ensure accurate decision making, ranking methods, automatic creation of elections. A model of reputation for each individual is designed where comment rankings(Wilson score), consensus on decisions with high skill point users, task completion rate, social network centrality measures in supply-chain context is used. Explored applications of entropy and random fields to life cycle analysis. Tech stack: NodeJS, Python, neo4j, Zero RPC. Testing with mocha and supertest.

Eingesetzte Qualifikationen

Python, JavaScript-Frameworks, JavaScript


Freelance Backend Engineer, Colony, London, UK
http://colony.io/, London
8/2014 – 1/2015 (6 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

8/2014 – 1/2015

Tätigkeitsbeschreibung

Design and implementation of a crowd-founding platform where the decisions are to be made based on collective intelligence. Managed a junior developer. Basic web application functionalities (login, register, etc.), 3 types of voting methods, database methods/ functionalities, user profiles are designed and implemented together with new phenomena such as amplification/decay mechanism for propagation of a decision/suggestion, statistical significance for an election to finalise (multinomial Wilson score, covering collections, Dirichlet distributions - multivariate beta), a greedy algorithm for faster voting under user experience constraints, expectation maximization approach to gain skill points from decision making and ensure accurate decision making, ranking methods, automatic creation of elections. A model of reputation for each individual is designed where comment rankings(Wilson score), consensus on decisions with high skill point users, task completion rate, social network centrality measures in supply-chain context is used. Explored applications of entropy and random fields to life cycle analysis. Tech stack: NodeJS, Python, neo4j, Zero RPC. Testing with mocha and supertest.

Eingesetzte Qualifikationen

Python, JavaScript-Frameworks, JavaScript


Statistiker
Charite, Berlin
7/2014 – offen (4 Jahre, 5 Monate)
Life Sciences
Tätigkeitszeitraum

7/2014 – offen

Tätigkeitsbeschreibung

Analysis of prostate cancer data set using R.
Statistical tests for comparing two biopsy methods, t-test, Mc Nemar test, Kolmogorov-Smirnov test, Wilcoxon ranked sum test, Barnard, chi-square, Fisher exact, binomial test.


Backend Engineer
webbroi, Orange Country, California
5/2014 – offen (4 Jahre, 7 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

5/2014 – offen

Tätigkeitsbeschreibung

Development of an ETF trading engine to trade electronic currencies using Mastercoin, Ethereum and Bitshares. Python development using Bitcoin, Mastercoin APIs. Ethereum scripting.


Data Scientist
www.clicktoshop.com, Minnesota
4/2014 – 7/2014 (4 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

4/2014 – 7/2014

Tätigkeitsbeschreibung

Web analytics and conversion rate optimization, Bayesian A/B testing, writing Python and R scripts for Bayesian update and testing of campaigns, using the conversion funnel of the company, Ad/Banner impressions, Landing Page and Offer Impressions.


FreelanceSoftware Entwickler, Programierer
Linko, Berlin, Berlin
11/2013 – 1/2014 (3 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

11/2013 – 1/2014

Tätigkeitsbeschreibung

Email processing module for IMAP accounts: Implementation of regular expressions, a trie for keyword extraction in JavaScript client code.


Forscher Entwickler Programierer
FIZ Karlsruhe, Zentralblatt Mathematik, Berlin
3/2012 – 10/2013 (1 Jahr, 8 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

3/2012 – 10/2013

Tätigkeitsbeschreibung

Contributed to the development of a semantic search engine for retrieval of mathematical expressions. I implemented Java packages for concurrent usage of XML and RDF databases, a Perl module for parsing mixed XQuery and SPARQL queries for querying RDF and XML databases concurrently. Application of natural language processing techniques to mathematics articles, terminological unit identification, named entity recognition: Probabilistic graphical models (HMM, CRF, MEMM), clustering. Creating entries for a semantic mathematics glossary for populating RDF databases with OMDOC Ontology. Four weeks talk; Introduction to Algebraic Geometry and Resolution of Singularities given at the seminar course “Singular Learning Theory” organized by Machine Learning Group, TU Berlin.


Forscher
Oesterreichische Akademie der Wissenschaften, Linz
10/2010 – 2/2012 (1 Jahr, 5 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

10/2010 – 2/2012

Tätigkeitsbeschreibung

I worked as a researcher in symbolic computation group led by Josef Schicho, inside the project Radical Parameterization of Algebraic Curves. I implemented numerous algebraic geometry and computer algebra algorithms using Sage, Python. I made research on the improvement of various number theoretic and algebraic geometric algorithms. I wrote several technical reports. I have given talks and attended several conferences.


Software Entwickler
Hewlett-Packard, Barcelona
3/2010 – 8/2010 (6 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

3/2010 – 8/2010

Tätigkeitsbeschreibung

I worked in 2 software projects for developing software to manage large number of printers via a user interface. Client-server programming.
I completed a C# package for performing disk operations in printers, using PJL queries, socket programming, developed Java classes for monitoring jobs sent to printers, wrote a Python script for analyzing the performance of the printer while the software is running, producing charts using Python packages Scipy/Matplotlib, wrote a Java library for achieving pdf encryption.


Forscher
Vall d’Hebron Krankenhaus, Faculte der Medizin, Barcelon
3/2009 – 1/2010 (11 Monate)
Life Sciences
Tätigkeitszeitraum

3/2009 – 1/2010

Tätigkeitsbeschreibung

I performed statistical programming using Python and R, statistical analysis of genomic data, case-control studies. I completed data quality control, principal components analysis of DNA data collected from individuals belonging to Spanish population in order to detect susceptibility variants of various diseases by using Python and R, made research on gene-gene interaction, implemented existing statistical and machine learning techniques in the literature, designed, implemented and tested own statistical hypotheses test, obtained positive results. (p values less than 0.05 for 47 out of 50 epistasis models.)


Praktikum als Forscher
Eczacibasi Informatik, Istanbul
7/2008 – 9/2008 (3 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

7/2008 – 9/2008

Tätigkeitsbeschreibung

I took part in the design and analysis of a SHA-3 candidate hash functions. I did various experiments using Maple and performed differential, linear cryptanalysis, man-in-the middle attack, checked pre-image resistance.


Forscher
Kinamik Data Integrity, Barcelona
9/2007 – 3/2008 (7 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

9/2007 – 3/2008

Tätigkeitsbeschreibung

Collaborated in the generation of the patent: Method and System to Provide Fine Granular Integrity to Digital Data.
I worked as a researcher on the design of a system to detect unauthorized modification of audit logs and data. Solving the problems posed by the software development team concerning security by using cryptographic primitives and mathematics. As well as reading articles and books in cryptology and information security, I could design my own method. Collaborated in the defense of the patent; “PCTES0300439-EP20030818388: System for Implementing a Game of Chance over a Communications Network”


Forscher
CRISES, University of Rovira i Virgili, Spain, Tarragona
6/2007 – 9/2007 (4 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

6/2007 – 9/2007

Tätigkeitsbeschreibung

I worked on providing data privacy in private information retrieval systems. I read articles on information security and cryptology, I wrote a draft on PIR.


Ausbildung

Master of Science in Mathematics
(Ausbildung)
Jahr: 2009
Ort: Spanien

Bachelor of Science in Mathematics
(Ausbildung)
Jahr: 2006
Ort: Turkei

Qualifikationen

Python (Scipy, Numpy, matplotlib, Cython, Pandas), Java, C#, Sage, Perl, R, Maple, Mathematica, JavaScript, C, C++
Machine Learning, Statistics, Computational Mathematics, Statistical Genetics, Blockchain, Cryptography, Enterprise Software Development, Financial Analysis.

Über mich

I am currently available for projects "only in Berlin" and part-time would be better. Also please don't sent me any Frontend Development jobs. I am eager to get more challenging jobs based on solving difficult problems and research.

I am a programmer/researcher/analyst who has both development and research experience in various fields such as cryptology/information security, blockchain, enterprise software development, genomic data analysis, machine learning, statistics.

I have a deep understanding of algorithms and I also have very good knowledge on programming especially Java, Python and Javascript.

As a researcher in information security, I already have a patent, a conference proceeding and a journal publication. My patent is on immutable audit logs, similar to blockchain in fundamentals.

As a researcher in genetics, a hypothesis testing method for detecting genetic interactions.

As a researcher in algorithms, an improved version of polynomial factorization.

Finally, I have a completed draft on mathematical language processing where I use Bayesian networks.

I have a master's degree in mathematics where my thesis was published at the Journal of Mathematical Cryptology and ranked with the highest grade among the master theses of the corresponding semester at the mathematics department .

I am fluent in Spanish, English and Turkish. I have an intermediate level in German.

Persönliche Daten

Sprache
  • Englisch (Fließend)
  • Deutsch (Gut)
  • Spanisch (Fließend)
  • Türkisch (Muttersprache)
Reisebereitschaft
Weltweit
Arbeitserlaubnis
  • Europäische Union
Profilaufrufe
2148
Alter
36
Berufserfahrung
11 Jahre und 5 Monate (seit 06/2007)
Projektleitung
1 Jahr

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