Sebastian Packmann

Experience

• 

  Banelco

  Jan 2006 - Jan 2011

  Analyst/Programmer Semi Senior

  Batch processes with millions of monthly transactions, weekly and daily reports and balances for several clients. Team Size: 5Major accomplishments · Modularization of code · Scalable software · Improvements on the efficiency of the code · Reconciliation software between networks. · Scalable Report system, based on XML config file for dynamic modifications.Programming Languages · C++ · Korn ShellApplications/Tools ·Borland CodeWright ·Eclipse ·OutSideView ·Microsoft Visual Source SafeFrameworks · HP Tandem extensions for CodeWright (TEC) · RogueWave C++Databases: EnscribeOperating Systems · NonStop OS · OSS environmentPeople in charge / Trained: 3 Zobrazit méně

• 

  Velocity Partners

  Jan 2011 - Jan 2015

  Zetec,Steam Generator inspection software, that inspects large number of tubes, with precision analysis, at frequent intervals. With such a wide range of potential discontinuities on both the inside and outside surface of tubing.Main task was the development of a new product based on previous core components, with new functionality and UX.Team size: 4The chosen methodology for this project was Scrum.Technologies:- C++- Qt framework 3.3.8- Boost 1.49 Zobrazit méně

  • Senior Developer I

    Jan 2013 - Jan 2015

  • Senior Developer I

    Jan 2012 - Jan 2013

  • Senior developer

    Jan 2011 - Jan 2012
• 

  InvGate

  Jan 2015 - Jan 2016

  Senior Developer

  Worked on a CMDB project and a Asset Manager app. On both projects I worked as a Python backend developer building APIs and custom search engines supporting different kinds of queries, using several databaes like Neo4j, OrientDB and Postgres.OS: Linux, WindowsWeb Framework: Flask, Django, Django Rest Framework, DRF JsonApiDatabase: MongoDB, Neo4j, OrientDB, Redis, PostgreSQL

• 

  Yonder Music Inc.

  Jan 2016 - Jan 2017

  Senior Developer

  Python backend developer. Working on Yonder's music app ingestion layer. In charge of the whole ingestion process, building a ETL pipeline that process ddex files and xls formatted files filling CouchDB content databases for music app and reportingMain goals were to improve the overall performance and redesign the whole system to make it more robust and scalable and design better tools for querying and interacting with the data.Developed a slack chat bot for daily requirements like reports for the commercial and executive staff, as well as jenkins remote control of jobs.OS: LinuxTechnologies: AWS EC2, AWS SQS, AWS S3, S3 Fuse filesystem, Slack RTM API, lxml, multiprocessingDatabase: CouchDB Zobrazit méně

• 

  ShipHero

  Jan 2017 - now

  Tackle complex problems, design and implement more scalable and easier to maintain solutions. Designing and building awesome new stuff to make the Shiphero experience even better.Leading the development of the ShipHero's public api (https://developer.shiphero.com) to enable all of our customers to get the most out of their data.Technologies: python3, graphql, grpc, flask, sanic, aiohttp, sqlalchemy, mongodb, aws sqs/sns, redis Work on existing code base to improve, extend and design new solutions to power the ever growing list of customers that trust ShipHero to boost their e-commerce and warehouse processes and solutionsOS: LinuxTechnologies: Python, SQLAlchemy, Flask, GraphQLDatabase: AuroraDB, DynamoDB, AWS S3

  • Software Architect

    Jan 2020 - now

  • Lead Software Engineer

    Jan 2018 - Jan 2020

  • Senior Backend developer

    Jan 2017 - Jan 2018