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Sebastian Bach
Gdansk, Poland
Senior Scala Developer with 6+ years of experience and dedicated focus on design and development of robust, highly composable and resilient distributed systems in Scala. Solid experience of pure functional programming, developing complex MTL/Tagless Final architecture in Scala with the cats framework.
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RChain Cooperative
Nov 2018 - Jan 2020 (1 year 2 months)
Senior Scala Developer
The main focus of the project was to create and maintain software for the RChain blockchain platform:
• Design and development of the communication and the transport layer
• Development of a P2P node discovery based on the Kademlia algorithm
over gRPC
• Design and development of a communication protocol in Protobufs and
gRPC
• Processing of outgoing and incoming message streams
• Implementation of system and application metrics via Kamon framework,
InfluxDB and Grafana
Used technologies:
Scala, Monix, cats, cats-effect, cats-mtl, cats-tagless, blockchain, Docker, InfluxDB, Grafana
• Design and development of the communication and the transport layer
• Development of a P2P node discovery based on the Kademlia algorithm
over gRPC
• Design and development of a communication protocol in Protobufs and
gRPC
• Processing of outgoing and incoming message streams
• Implementation of system and application metrics via Kamon framework,
InfluxDB and Grafana
Used technologies:
Scala, Monix, cats, cats-effect, cats-mtl, cats-tagless, blockchain, Docker, InfluxDB, Grafana
Pyrofex
Apr 2018 - Oct 2018 (6 months)
Senior Scala Developer
The main focus of the project was to create and maintain software for the RChain blockchain platform. Pyrofex was a subcontractor for the RChain Cooperative. The development team has later transitioned and worked directly for the RChain Cooperative.
Used technologies:
Scala, Monix, cats, cats-effect, cats-mtl, cats-tagless, blockchain, Docker, InfluxDB, Grafana
Used technologies:
Scala, Monix, cats, cats-effect, cats-mtl, cats-tagless, blockchain, Docker, InfluxDB, Grafana
Sony
Jan 2017 - Jan 2018 (1 year)
Scala Automation Engineer
The main focus of the project was to integrate multiple independent systems in a microservice architecture. Processing of large event data sets from Splunk to action items in Jira, emails and other attached information systems:
• Electronic Global Information Security (EGIS) integration Expert
• Microservice architecture (mixed environment Python and Scala)
• Distributed high availability system with Docker on DC/OS (Mesos, Linkerd)
• Event-driven architecture with RabbitMQ
Used technologies:
Scala, Monix, cats, Docker, InfluxDB, Grafana, DC/OS, Play framework, PostgreSQL, Splunk, Jira plug-in development, Python
• Electronic Global Information Security (EGIS) integration Expert
• Microservice architecture (mixed environment Python and Scala)
• Distributed high availability system with Docker on DC/OS (Mesos, Linkerd)
• Event-driven architecture with RabbitMQ
Used technologies:
Scala, Monix, cats, Docker, InfluxDB, Grafana, DC/OS, Play framework, PostgreSQL, Splunk, Jira plug-in development, Python
This section lets you add any degrees or diplomas you have earned.
Universität Dortmund
Master of Science, Computer Science
Oct 1993 - Oct 1999
Scrum.org
Professional Scrum Master I
Jun 2014
Coursera Verified Certificates
Functional Programming Principles in Scala
Nov 2014