Nikola K.

Propylon builds enterprise legislative and document-management platforms used by government and regulatory bodies for large-scale XML-based content workflows.

• Designed and shipped REST and GraphQL services in Python for document-heavy platforms, partnering with React teams on end-to-end product flows

• Built Celery and Redis pipelines for long-running document generation and synchronization with idempotency, retries, and structured logging

• Improved performance and reliability through PostgreSQL query tuning, schema adjustments, and clearer integration boundaries

• Supported Elasticsearch-based indexing and retrieval workflows for large content sets and search-heavy user journeys

• Contributed API documentation, runbooks, integration standards, observability practices, and CI quality gates

Capaciteam is a software services company providing senior engineering capacity to enterprise clients across regulated and data-intensive industries.

• Delivered enterprise features in Python and Laravel with focus on maintainability, security, and clearer service ownership

• Refactored APIs and internal workflows to improve consistency, long-term development speed, and delivery quality

• Improved CI pipeline speed and developer experience through shared tooling and automated checks

• Acted as bridge between client engineering teams and delivery management, ensuring scope and quality alignment

• Delivered backend-heavy engagements for six clients across multi-year and short-term gigs, with Episcope Monitoring Systems running 2.5+ years and Leaseonline running 1 year

• Built features for Leaseonline, a Swedish eCommerce platform selling new cars to major car brands, in Laravel and Vue.js — adding new functionality to the existing checkout and quoting flows

• Worked on Episcope Monitoring Systems' production-data platform for the forest, sawmill, and manufacturing industries, structuring legacy PHP code and supporting future feature development with Python services

• Delivered WordPress and WooCommerce engineering for Supervers, a Belgian online grocery platform — building plugins, fixing performance issues, and improving site reliability (10/10 client review)

• Handled WordPress, PHP, and WooCommerce maintenance and optimization for MotoWrap, a Swedish motorsport eCommerce site, applying best practices for long-term maintainability

• Delivered WordPress and Tailwind CSS development for Julian Wright Websolutions, including custom Elementor modules, theme setup, and frontend tooling integration

• Maintained 9/10 review scores across multi-year client engagements

• Erstellung eines Marktplatzes mit Integrationsoptionen für Stores auf WooCommerce, Shopify, Square Space, Wix und Magento und einem Aggregator für kuratierten Content von YouTube, Vimeo und DailyMotion.

Entwicklung von kleinen bis mittelgroßen Web-App-Lösungen.

Social Media Automation tool that integrates with Twitter, Facebook, and Linkedin. It offers easy integration with Feeds, YouTube Channels, and WordPress.

• Web-App-Entwicklung auf WordPress und Laravel.

WP Safe Mode delivered WordPress security, diagnostic, and utility tools for site owners and agencies.

• Led product engineering for WordPress security and utility plugins distributed to thousands of site owners

• Designed plugin architecture and update flows with focus on backwards compatibility and reliability

• Owned roadmap, technical decisions, and release management across the product portfolio

• WordPress solutions, CodeIgniter security, and utility tools, web development, web services.

• Drupal development, modules development and creation, HTML5 apps, Mobile and Tablet apps, Theme Development.

• Website development for Serbian television channel, screen overlay solutions using flash technology - voting tables.
• Web apps creation.

• Studentische Hilfskraft. 3D-Software – Softimage.
• Fähigkeiten bei 3D-Modellierung, Animation und Visualisierung als Werksstudent.

• Website solutions - portfolios, e-commerce solutions, Web Apps, Web Design, Graphic Design.