Sebastian Opalczynski - Senior Software Engineer, Trurl

Feedback from Sebastian’s ex-colleagues

Let me see

Keep in touch with meI'm using Intch to connect with new people. Use this link to open chat with me via Intch app

Work Background

opalczynski.plBlogger

Feb. 2023Warsaw, Mazowieckie, PolandMy place in the web. Build yourself. Build your wealth.

UrbanDataLab AGSenior Technical Consultant

Aug. 2019Warsaw, Mazowieckie, PolandDesigning architecture & infrastructure REST API Optimizing data processes

TrurlSelf Employed

Aug. 2012Warsaw, Mazowieckie, Poland- software audits (especially in python stack) - team building - designing IT architecture - designing IT infrastructure - coding and programming - training - helping with requirements gathering - mentoring - remote office configuration

ScurriSenior Software Engineer

Sep. 2022 - Jul. 2024Warsaw, Mazowieckie, Poland

NumaricsSenior Technical Consultant

Jan. 2023 - May. 2023Warsaw, Mazowieckie, PolandFinTech consulting.

NumaricsHead Of Development

Jan. 2021 - Dec. 2022Zurich, Switzerland- team building - core services development and maintenance - implementation of the core algorithms in the platform - implementation of the management panel for platform operators - CI/CD configuration - system architecture design - infrastructure maintenance Stack: - pyhon: django, django rest framework, celery - rabbitmq - postgresql - GCP - atlassian: JIRA, Confluence, BitBucket - slack - ansible - docker, docker-compose

thirty3Co-Founder

May. 2019 - Dec. 2020Warsaw, Masovian District, Poland- responsible for technology division - scaled the team from 5 to 16 in one year - setting up the processes in technology - maintaining customer relationships - contributing actively to most of the products in thirty3 portfolio from different areas: marktech, fintech, proptech - designing software architecture for the products in the portfolio - maintaining the infrastructure on the cloud: AWS, GCP - creating tools for workflow automation Stack: - atlassian: JIRA, Confluence, BitBucket, Jira ServiceDesk; - python: django, django rest framework, celery - postgresql - ansible - docker, docker-compose - AWS: EC2, CF, SES, SQS, S3, RDS, ROUTE53 - slack

User.comTech Lead

Mar. 2019 - May. 2019Warsaw, Masovian District, Poland- prototyping the product recommendation service - pro-actively improving the existing code base - improved CI/CD processes - modified the main application architecture to support multi-tenant multi-database architecture - developing new features - mentoring the team Stack: - python: django, django rest framework, celery - postgresql - gitlab - OVH as cloud provider - docker - slack

User.comSenior Software Engineer

Jan. 2019 - Mar. 2019Warsaw, Masovian District, Poland- prototyping the product recommendation service - pro-actively improving the existing code base - improved CI/CD processes - modified the main application architecture to support multi-tenant multi-database architecture - developing new features - mentoring the team Stack: - python: django, django rest framework, celery - postgresql - gitlab - OVH as cloud provider - docker - slack

iMeshupInterim CTO

Aug. 2018 - Dec. 2018Warsaw, Masovian District, Poland- oversee the pivot process from technology division perspective - mentoring the development team - setting up and maintaining the infrastructure on AWS - contributing to the code base - adding new features for the core services - managing the team of 5 Project was stopped, because of lack of funding and too high burn rate.

Risen.CTO

Jul. 2016 - Dec. 2018Warsaw, Masovian District, Poland- together with other founders - I'be built this company from scratch - company had in the top times around 50 employees and around the same number of contractors - more than a half of the 50 employees were programmers - responsible directly for 13 members backend team - responsible for setting up technology processes and standards in the technology division - contributing to the projects from the risen portfolio in different roles: project manager, engineer, QA, tester - maintaining customers relationships - projects budgeting - implementation of the processes in technology division Stack: - atlassian stack: JIRA, Confluence, BitBucket - python: django, django rest framework, celery, and other frameworks - postgresql - elasticsearch - slack - AWS cloud Company was sold in 2018.

Sauce LabsSenior Software Engineer

Dec. 2017 - Jul. 2018Warsaw, Masovian District, Poland- IAM service research and foundation - API Gateway research for kubernetes - Adapting the services to be able to run in kubernetes cluster - Modifying and aligning CI/CD tasks in jenkins to be able to work with kubernetes cluster - Integration layer for two products that needed to be connected Stack: - python: tornado, monocle - java: springboot - docker - ansible - atlassian: JIRA, Confluence - jenkins - gitlab - github - slack - mysql - mongodb

Intch is a Professional Networking App for the Future of Work

300k+ people

130+ countries

AI matching

Get Intch if you'd like to

📝

Get Recommended to New Customers

👋

Connect with Like-Minded People

💸

Raise Capital

🚀