Oleksandr Bondarenko

Software Engineer

Gdańsk, Pomorskie, Poland8 yrs 5 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Engineered a financial system reducing processing time by 40%
Architected a 7-service microservices platform with zero-downtime deployments
Integrated AI-powered OCR for automated invoice processing

Stackforce AI infers this person is a Full-Stack Engineer with expertise in Fintech and E-commerce solutions.

Contact

Skills

Core Skills

Spring BootAngularPostgresqlJavaLaravelVue.jsSymfonyMagento 2

Other Skills

DockerGitKubernetesJenkinsPythonStripe APIRabbitMQApache SolrCascading Style Sheets (CSS)LinuxOptical Character Recognition (OCR)Spring SecurityFastAPISpring MVCHibernate

About

I help businesses build scalable, production-grade web applications with Spring Boot and Angular. 🛠️ What I Do: Over the past 4+ years, I've architected and delivered systems for finance, healthcare, and e-commerce - from startups to enterprise clients. Specialties: - Backend: Spring Boot microservices, RESTful APIs, authentication - Frontend: Angular SPAs, TypeScript, responsive design - DevOps: Docker, Kubernetes, Jenkins CI/CD - Databases: PostgreSQL, MySQL, Redis, MongoDB 📈 Recent Impact: - Built financial management system that reduced processing time by 40% - Architected 7-service microservices platform with zero-downtime deployments - Integrated AI-powered OCR for automated invoice processing 💼 Currently: - Full-time: Software Engineer @ DW Tax - Part-time: Available for consulting projects 🌍 Based in Gdansk, Poland. Working with clients globally. 📬 Open to: - Spring Boot / Angular consulting projects - Microservices architecture design - Legacy system modernization - Technical mentorship Let's connect if you're building something interesting!

Experience

8 yrs 5 mos

Total Experience

2 yrs 3 mos

Average Tenure

2 yrs 4 mos

Current Experience

Dw tax

Software Engineer

Jan 2024 – Present · 2 yrs 4 mos · Gdansk Metropolitan Area · Hybrid

Business Impact: Engineered a financial system that significantly boosted productivity and reduced costs; optimized document processing time from 10 minutes (manual) to 30 seconds (automated).
Cloud-Native Architecture: Designed and deployed a distributed system with Java, Angular, and Python AI services. Managing the production environment in Kubernetes (K3s) to ensure self-healing and zero-downtime updates.
Asynchronous Scalability: Integrated RabbitMQ to decouple heavy AI-driven OCR tasks from the main API, allowing the system to handle peak loads without performance degradation.
Modern Storage: Migrated document management from local volumes to S3-compatible storage (MinIO/AWS), improving data durability and security through Presigned URLs.
Routing & Security: Implemented Spring Cloud Gateway as a single entry point for microservices, managing centralized authentication and request routing.
Fintech Logic: Developed core services for automated tax calculations, payment allocation, and dynamic financial reporting using Spring Boot 3.3 and PostgreSQL.
CI/CD: Established automated pipelines with Jenkins and Docker, ensuring stable releases and 100% consistent environments.

DockerGitSpring BootAngular

Eter-med

PHP Fullstack Developer

Sep 2022 – Aug 2023 · 11 mos · Gdańsk, Pomorskie, Poland

Healthcare Platform: Developed and maintained medical web applications on Laravel 9 and Vue 3 to streamline clinic workflows and patient data management.
Advanced Search: Integrated Apache Solr for full-text search across medical files, articles, and categories — significantly improving retrieval speed for large datasets.
Secure Storage: Connected Nextcloud with SSO, ensuring GDPR-compliant document handling and secure file access for medical staff.
CI/CD: Configured Docker, Bash, and Jenkins pipelines for reliable, repeatable deployments.
DB Optimization: Refactored database queries and schema structure to handle growing data volumes without performance degradation.
Quality: Wrote unit and integration tests; participated in code reviews and UI/UX improvement sessions within an Agile team.

DockerGitLaravelVue.js

Deosite / creating desire

PHP Fullstack Developer

Jan 2022 – Sep 2022 · 8 mos · Gdańsk, Pomorskie, Poland · On-site

E-commerce Customization: Modified and extended existing delivery and shipping modules to meet specific business requirements using Symfony.
Magento 2: Developed a custom module to streamline discount coupon administration, reducing manual operations for the sales team.
eBay Integration: Utilized M2E Pro to create 100+ product templates for the eBay shop, optimizing the listing and synchronization process.
Collaboration: Gathered requirements from stakeholders, implemented new features, and resolved bugs in close cooperation with the development team.

DockerGitSymfonyMagento 2

Freelance

Freelance PHP Full Stack Developer

May 2020 – Jan 2024 · 3 yrs 8 mos · Remote · Remote

Backend & Payments: Independently architected a full-cycle e-commerce system using Java
17/21 and Spring Boot 3.x. Integrated Stripe API for secure transactions, handling webhooks,
automated invoicing, and subscription flows.
Cloud-Native & Messaging: Deployed and orchestrated the infrastructure via k3s, utilizing
RabbitMQ for asynchronous order processing and S3 (MinIO) for asset management.
Media Optimization: Engineered an automated pipeline to convert high-res images to WebP on
the fly, significantly optimizing storage efficiency and frontend performance.
Frontend: Developed a robust and reactive single-page application (SPA) using Angular,
ensuring seamless integration with the Spring Boot REST API.
Full-Stack Development: Designed and built complete web applications — RESTful APIs, SPAs, and monolithic platforms — using Laravel, Symfony, Vue.js, and Angular.
E-commerce: Developed and customized Magento 2 modules for discount management, product templates, and eBay listing automation via M2E Pro.
Integrations: Connected third-party APIs, payment gateways, and SSO authentication to deliver seamless end-to-end user experiences.
Performance: Optimized database schemas and queries for high-load scenarios; refactored legacy code to improve stability and load times.
UI/UX: Converted Figma/PSD designs into semantic, accessible HTML5/SCSS templates with responsive layouts using Bootstrap.
Process: Participated in Agile ceremonies, code reviews, and testing cycles to ensure delivery quality and team alignment.

DockerGitJavaSpring Boot

Auto cooperative "promin"

Internet Network Specialist and System Administrator

Jan 2016 – Jun 2018 · 2 yrs 5 mos · Cherkasy, Cherkasy, Ukraine

Infrastructure: Deployed and maintained fiber optic networks for residential buildings; configured PPPoE connections ensuring stable high-speed internet access for hundreds of end-users.
System Administration: Administered Linux and Windows servers, managed hardware diagnostics, software installations, and configuration to maintain minimal downtime.
Client Support: Delivered hands-on technical guidance to clients, resolving network and hardware issues efficiently in a high-demand environment.

Cascading Style Sheets (CSS)Linux