Hire the Best Apache Developers in Belgrade, RS

If your website is critical to your business, security and stability aren’t optional - they’re infrastructure. I work with companies that rely on WordPress and WooCommerce in production environments, where downtime, attacks, or misconfigurations directly impact revenue. With over 10 years of experience in WordPress, Cloudflare, and Linux server environments, I typically get involved in situations where things need to be handled properly - not patched temporarily. What I focus on: • Advanced malware remediation and full-site recovery • Cloudflare architecture, WAF tuning, and traffic control • Bot mitigation and DDoS protection at scale • Linux server hardening and performance tuning (Nginx, Apache, MySQL) • Stabilizing high-traffic WooCommerce environments • Full-stack performance + security alignment I approach every project from both sides - application and infrastructure. That means understanding how WordPress behaves under load, how traffic is filtered at the edge (Cloudflare), and how the server handles what gets through. This is where most setups fail, and where I usually step in. I’m a Top Rated Plus freelancer on Upwork with a 100% Job Success score, and I’ve worked with 150+ clients across hundreds of production websites, many of them long-term. I don’t rely on generic solutions or one-size-fits-all setups. Every system is different, and I take the time to understand what’s actually happening before making changes. If you’re looking for someone who can take ownership of security and stability, not just fix isolated issues - we’ll likely be a good fit. ✔ Fast response (usually within a few hours) ✔ Available for urgent fixes (including hacked or down sites) ✔ Careful work on live environments (no unnecessary downtime) ✔ Root-cause fixes, not temporary patches

I build scalable backend systems, data pipelines, and automation platforms used by SaaS, fintech, and e-commerce companies. With 14+ years of backend engineering experience, I specialize in designing high-performance APIs, distributed ETL pipelines, and large-scale automation infrastructure. $500K+ earned on Upwork across 270+ projects building backend systems and data platforms. Key strengths: • Backend architecture (Python, FastAPI, Node.js, .NET, PostgreSQL, Supabase, Celery/RabbitMQ/Redis) • Data pipelines & ETL systems • AI integrations and RAG pipelines on vector databases (pgvector, Pinecone, Qdrant) • Large-scale data extraction and reverse engineered APIs • Distributed workers and automation infrastructure I focus on performance, reliability, and long-term maintainability, delivering backend platforms that grow with the business and remain stable under heavy load. Core technologies Python, FastAPI, Node.js, .NET, PostgreSQL, Redis, Supabase, Qdrant, Pinecone, Docker, Celery, RabbitMQ, Playwright, Selenium, Scrapy, REST APIs, GraphQL, ETL pipelines, RAG, vector search, distributed workers, cloud infrastructure (AWS/GCP/Azure), LLM, Langchain, Langraph, Langfuse, BMAD

Senior Backend Engineer with 11+ years building production Java/Spring systems for fintech, SaaS, and distributed platforms. I help startups and product teams ship reliable backends: APIs, microservices, event-driven architecture, auth/multi-tenancy, and integrations — from design to production. What I typically own: • Spring Boot 3 / Java 21 APIs and service design • Kafka event-driven systems, async processing, integrations • PostgreSQL data modeling, performance, migrations (Flyway) • Auth & multi-tenant security (JWT, RBAC/ABAC, Spring Security) • Docker/Kubernetes, CI/CD (GitHub Actions, Jenkins) • Real-time features (WebSocket / MQTT) when needed Relevant background: • FIS — post-trade derivatives clearing with CQRS/Event Sourcing (Akka/Lagom, Kafka, Couchbase) • HTEC — 20+ microservice platform for autonomous vehicle ops (mission management, dispatch, billing, tracking) • Built end-to-end: multi-tenant SaaS backend (ABAC, real-time dashboard) and analytics platform (live ingestion, simulations, billing) Best fit projects: • New Spring Boot backend / MVP → production • Microservices refactor / Kafka integration • Auth, multi-tenant SaaS, payments/fintech backends • Performance, reliability, and production hardening Availability: part-time or project-based (timezone-friendly for EU / US overlap). Message me with the problem + stack + timeline — I’ll reply with a clear approach and estimate.

Hello and thanks for visiting my profile! With more than 11 years of experience in Web and App Development focusing on GIS and web maps visualization. I have a proven track record of successfully handling both short and longer-term projects, which makes me a great choice for you. My work schedule is very flexible, as I often work not only daytime EU hours but early morning and late evening as well. Top skills – expert level: ✔ GIS data processing and analysis (Spark, Sedona, GeoPandas, GDAL, PostGIS, QGIS) ✔ GIS data formats (geoparquet, shapefiles, geojson, wkt, pmtiles) ✔ GIS data visualization (Deck.gl, Kepler.gl, OpenLayers) ✔ VisGL (deck.gl, kepler.gl, loaders.gl, luma.gl, math.gl) ✔ 3D data on maps (I3S, 3D Tiles) ✔ Map providers (Mapbox, MapLibre, Google Maps, OpenLayers) ✔ JavaScript build tools (Webpack, Vite, Nx) ✔ Version control systems (GitHub, Bitbucket, GitLab) ✔ JavaScript libraries development and publishing (Npm) ✔ JavaScript, TypeScript, React, Redux, NodeJS, NestJS, NextJS ✔ Python, Jupiter Notebooks Huge outsource experience in big international companies. Work best in both Scrum teams and as a solo developer. Additional skills: ✔ DevOps: AWS ✔ Quality Assurance: Jest, Tape, Vitest, Cypress

Core Web Vitals & PageSpeed Insights Specialist // 1,000+ Sites Optimized. I'm platform-agnostic: Shopify, WordPress, Magento, Shopware, BigCommerce, SPA's like React or Vue or custom builds - if it loads in a browser, I can make it faster. Expert Web Developer / Expert AI Integration Specialist / Automation Developer / AI Workflows. INP, CLS and LCP directly affect Google Discover traffic, Google Ads Quality Scores, and Shopify Conversion Rates. A slow landing page directly degrades Quality Score, raising their cost-per-click (CPC). When other developers have tried and failed, clients come to me. Staging environment first → live deployment after testing → 28 days of Search Console monitoring I am a web performance engineer with 15+ years of experience and 1,000+ optimized sites. I specialize in Core Web Vitals (INP, LCP, CLS) and speed optimization for WordPress, WooCommerce, and Shopify - handled at the code and server level, not the plugin level. - I Fix What Others Broke (The "Fake Score" Problem): Did a previous developer install WP Rocket or NitroPack, break your layout, and call it done? Or worse, use obfuscated cheat scripts to fake a 90+ Lighthouse score while your real users still experience 6-second load times? I strip out the fake speed hacks, remove plugin bloat, and deliver real, sustainable CWV improvements based on Chrome User Experience (CrUX) field data. I don't guess. I diagnose the actual bottleneck and fix it permanently. - Speed is Conversion Rate Optimization (CRO): A 1-second delay drops conversions by up to 7%. I optimize for real user behavior, not vanity metrics: - Sluggish INP equals frustrated users and abandoned carts. - Slow LCP spikes your bounce rate and penalizes your Ads Quality Score (driving up CPC). - High CLS makes your site feel broken and untrustworthy. - My Process: 1. Diagnose: Deep code/server audit + Real User Monitoring (RUM). 2. Fix Safely: All work happens on a staging environment. Live deployment occurs only after rigorous QA. 3. Validate: 28 days of Search Console monitoring to confirm Google validates the fix using real-world field data. - Tiered Offerings: (Pricing is fixed per project based on site complexity. All tiers include staging-only work and 28-day validation.) Tier 1: Performance Audit & CRO Roadmap ($300–$450) - Full technical audit + Core Web Vitals breakdown. - Real-user bottleneck analysis (RUM/CrUX). - Prioritized fix list with expected impact on speed & conversions. Tier 2: Full CWV & Conversion Fix ($500–$1,200) - Complete staging implementation of all fixes. - Server, theme, and code-level optimization (no bloat plugins). - CRO-focused tweaks: checkout flow responsiveness, ad/script deferral, critical rendering path optimization. - 28-day post-launch Google validation guarantee. Tier 3: Ongoing Performance Retainer ($500–$1,500/mo) - Real-time CWV & conversion tracking. - Monthly performance patches + plugin/theme update testing. - Proactive bottleneck prevention. - Ideal for WooCommerce/Shopify stores running ads or scaling traffic. Specializations: WordPress & WooCommerce · Shopify (Liquid, JS reduction) · Core Web Vitals (INP, LCP, CLS, TTFB) · Advanced server tuning (Linux, Nginx, LiteSpeed, VPS) · Cloudflare · Conversion Rate Optimization (CRO) · Technical SEO Keywords: WordPress Speed Optimization · Shopify Speed Optimization · Core Web Vitals · PageSpeed Insights · Site Audit · WP Rocket · Perfmatters · Performance Fix · CRO · Conversion Optimization · Technical SEO · WooCommerce Checkout Optimization · Site Maintenance

Greetings, I'm Artem Tomov, a seasoned Senior Frontend Engineer and Software Engineering Manager with a strong track record of leading teams and delivering high-quality products. With over a decade of experience since 2007 and a degree in Computer Systems and Networks, I bring a wealth of expertise to every project I undertake. In my portfolio, you'll find a diverse range of projects showcasing my proficiency in both frontend and backend development. From building in-house React applications for budgeting processes at Raiffeisen Bank Russia to refining Single Page Applications (SPAs) at Alyce, my experience spans the entire software development lifecycle. Key Skills: Frontend: React, styled-components, Material UI, Angular, TypeScript, Redux Backend: PHP, Laravel, Symfony, MySQL, PostgreSQL DevOps: Docker, Kubernetes, CI/CD pipelines Other: Git, SVN, Memcache, Redis, Elasticsearch, bash Experience Highlights: Raiffeisen Bank Russia: Orchestrated seamless integration of complex budgeting processes into React applications, led tech transition from MobX to Redux, and optimized application performance through containerization and Kubernetes deployment. Alyce by Sendoso: Elevated frontend technologies, refined SPA architecture, and contributed to successful company acquisition by implementing innovative features. Excelian | Luxoft Financial Services: Managed frontend teams, led platform updates to Angular 5, and established CI/CD pipelines for continuous integration. With a strong technical skill set, fluency in Russian and advanced English, and a commitment to excellence, I am well-equipped to tackle challenging software engineering roles. Feel free to reach out to me at tomasphp@gmail.com. Looking forward to potential collaborations. Best regards, Artem Tomov