Szymon Jednac
Consultant at Tektit Consulting GmbH
Sopot, Pomeranian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolSzymon Jednac is a seasoned software consultant and engineering leader with 12 years of experience building cloud-native, high-throughput systems and guiding teams through migrations, platform design, and continuous delivery. He has led hands-on development from greenfield data-science platforms to multi-region, low-latency services handling millions of requests per minute, pairing strong JVM backend skills with AWS, Terraform, Docker and Kafka expertise. As a pragmatic technical coach he provisions and mentors teams, advises C-level stakeholders, and acts as a sparring partner for engineering organizations. His open-source contributions include bug fixes and new AWS integrations for Apache Airflow and practical compatibility work on the H2 database, reflecting attention to reliability, docs, and interoperability. Trained as an M.Sc. engineer in distributed systems, Szymon combines deep systems knowledge with a track record of translating legacy monoliths into testable, message-driven architectures. Colocated in Sopot, Poland, he favors pragmatic engineering trade-offs that balance throughput, cost and operational simplicity.
12 years of coding experience
15 years of employment as a software developer
M.Sc. Eng., Computer Science: Distributed Applications and Internet Systems, M.Sc. Eng., Computer Science: Distributed Applications and Internet Systems at Gdańsk University of Technology
Polish, English
Stackoverflow
2,987reputation
250kreached
68answers
3questions
tomcat
top-5%
Github Skills (32)
apache-airflow10
python10
databases10
java10
javas10
h2-database10
sql10
relational-databases10
sql-database10
database10
testing9
aws9
tomcat9
orchestra8
orchestration8
Programming languages (10)
Github contributions (5)
apache/airflow
Aug 2018 - Nov 2018
Apache Airflow - A platform to programmatically author, schedule, and monitor workflows
Role in this project:
Backend Developer
Backend DeveloperContributions:5 PRs, 4 comments in 2 months
Contributions summary:Szymon primarily contributed to improving the documentation and fixing bugs within the Apache Airflow project. They addressed issues related to the SlackWebhookOperator, S3Hook, and S3FileTransformOperator, correcting incorrect parameter names and adding missing documentation for function parameters. Additionally, the user added a new SNS integration by providing a hook and an operator for publishing Amazon SNS messages. They also ensured the correct output and logging behavior for the S3 file transform script.
monitorpythonschedulerapacheprogrammatically
codefollower/H2-Research
Sep 2018 - Sep 2018
H2数据库源代码学习研究(包括代码注释、文档、用于代码分析的测试用例)
Role in this project:Backend Developer
Backend DeveloperContributions:7 commits in 1 day
Contributions summary:Szymon focused on enhancing the H2 database's compatibility with MSSQLServer mode. Their primary contributions involved implementing support for SQL Server-specific features, specifically handling table hints and the `IDENTITY` keyword for auto-incrementing primary keys. The user added tests to ensure the implemented features function correctly and also provided a sample for users to showcase the features implemented. Additionally, the user updated the documentation to reflect these new capabilities.
java
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