Location
PolandRate
Years of experience
4About
With over 11 years of experience as a Senior Java Software Developer, I have honed my expertise in a wide array of technologies, ranging from Java (Java 8-21, Spring Boot, Spring Data) to Python (FastAPI, PyTest), SQL, and NoSQL databases (Oracle, PostgreSQL, MongoDB). My career has been marked by significant contributions to various projects, including eCommerce applications, mobile game development, and integration tools. I have a strong background in backend development, with a focus on creating robust architectures, implementing business logic, and optimizing performance. My experience extends to frontend development with Angular and Flutter, as well as DevOps activities involving Docker, Kubernetes, and CI/CD pipelines. I am proficient in managing full software development life cycles, including tasks like sprint planning, code reviews, and mentoring junior developers. My multilingual abilities in English and Polish complement my technical skills, enabling me to collaborate effectively in diverse teams. My passion for continuous learning and experimenting with new technologies drives my career forward.Tech Stack
Java, Bash, Django, Docker, Git, JavaScript, MySQL, Python, Spring Framework, SQL, TypeScriptExperience
- Developed and maintained backend systems using Java and Python for various domains, including eCommerce, mobile gaming, and financial services.
- Designed software architectures and implemented key components to ensure scalability and performance.
- Optimized database queries and managed database schema configurations for both SQL and NoSQL databases.
- Led sprint planning, conducted code reviews, and provided mentorship to junior developers.
- Integrated systems with external services using message queues like Kafka and RabbitMQ.
- Collaborated closely with business teams to define and deliver user-friendly solutions.
- Implemented automation tests and created documentation to support ongoing project development.
Employment history
• Identifying, prioritizing, and executing tasks in the software development life cycle
• Implementing business logic functions at Java back-end, bug fixing, sprint plannings, troubleshooting
• Writing automation documentation for the project (using Spring REST documents + Swagger UI)
• Writing automation tests using Junit and Mockito
• Resolving some devOps activities (configuration mongoDB replicas, deployment issues etc.)
• DataBase schema configuration
• Implementation complex request chain using transactional approach
• Building complex of aggregated query pipelines and its optimization
• Implementation database migration scripts
• implementation integration with external system using message queue Kafka
• Identifying, prioritizing, and executing tasks in the software development life cycle
• Implementing business logic functions at Java back-end
• Writing automation documentation for the project (using Spring REST documents + Swagger UI)
• Writing automation tests using JUnit
• Implementation system of database repositories using transactional approach (PostgreSQL, Firestore)
• Creating and maintaining the database schemas (PostgreSQL) via FlyWay
• Working closely with business teams to define plans and solutions to provide a stable, agile, and user-friendly system
• Developing new features for backend
• Clarification of requirements
• Conducting code review
• Responsible for bug fixing
• sprint planning
• Working with reporting system based on different databases.
• Implementation and optimization of database queries (MySql, Postgress, H2, Elastic).
• Database schema implementation and database configuration
• Implementation database migration Scripts
• Developing new features for backend and frontend
• Clarification of requirements
• Code reviews and code optimization
• Responsible for bug fixing
• Conducting sprint planning and troubleshooting
• Close work with oracle database: query optimization, schema configuration
• Oracle optimizer configuration using statistic gathering mechanic
• Optimization using transitional approach
• Creating complex reports using SQL and PL/SQL to meet business needs
• Addressing and optimizing system performance issues
• Providing guidance and training to junior developers
• Implementing protocols to ensure system compatibility and functionality
• Conducting business analysis to align technical solutions with business needs
• Fixing bugs to ensure system reliability and smooth operation
• Providing customer support to resolve issues and improve user experience
• Troubleshooting technical problems to maintain system performance
• Implementing database schema for accurate data organization
• Creating reports using SQL and PL/SQL to meet business requirements
• Optimizing processes using transactional approaches
• Configuring Oracle optimizer using statistical gathering techniques
Education history
Systems Software
“80+ clients have experienced exceptional results from our IT recruitment and software development services.”
Twist Solutions, Ltd.
Qualifyze GmbH
Kroll, Inc.
GlossGenius, Inc.
Idealab, Inc.
Epinote
Verus Analytics LLC
Roesier, Inc.
CoCoHub, Ltd.
Reef Technologies
Xino Sports LLC
Flowr Agency
Remarkable Ones
WebCrafters, Inc.
1Security
Jutro Medical
Wellbee
ZIM
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🇵🇱 Warsaw, Poland
HQ & delivery centerAl. Jerozolimskie 181B, 5th Floor,
DevsData IT Recruitment Agency
Poland
02-222, Warsaw, Poland[email protected] copy to clipboard
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NY representative office1820 Avenue M #481
DevsData IT Staffing NYC
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DevsData London Tech Recruiters35 Ormiston Grove,
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Spain representative officeUtopicus, 16 Rda. de Sant Pere,
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Best back-end engineers I've ever worked with.
“I interviewed about a dozen different firms. DevsData LLC is truly exceptional – their backend developers are some of the best I’ve ever worked with. I’ve worked with a lot of very well-qualified developers, locally in San Francisco, and remotely, so that is not a compliment I offer lightly. I appreciate their depth of knowledge and their ability to get things done quickly.”
Nicholas Johnson
CEO of Orange Charger LLC,
Ex-Tesla Engineer,
Mentor at YCombinator
Tailored recruitment process, trusted market expertise.
“DevsData reached out to us, as we’ve been looking to grow our engineering team in Europe and Poland. Communicating efficiently and professionally, DevsData made a strong impression with their understanding of the recruitment challenges we were facing. They designed a tailored recruitment process for our needs. I was impressed with the technical depth of their approach.”
Karim Butt
Co-Founder & CTO at GlossGenius, Inc.
Outstanding vendor, 21 engineers hired.
“Out of all the vendors we work with, DevsData clearly stands out. The quality of developers they deliver is beyond what we've received from any other vendor, and they've been able to send profile recommendations very quickly. I'm happy to be their reference for other companies from Israel and talk about their recruitment abilities and what they delivered for us.”
Ran Eyal
Senior Manager at
ZIM Integrated
Shipping Services Ltd.
Proactive partner, exceptional results.
“DevsData demonstrated a strong degree of proactivity, taking time to thoroughly understand the problem and business perspective, and continuously suggesting performance and usability enhancements. Their app exceeded my expectations. I've worked with DevsData on numerous projects over the last 3 years and I'm very happy. Being both responsive and honest in communication.”
Jonas Lee
Partner & Executive VP of Verus,
Financial LLC, Investor,
& Serial Entrepreneur
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