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Srdjan Miš

Srdjan Miš

Backend Developer | PHP | Symfony | API Platform | Docker | AI Integrations

Summary

Experienced Backend Developer with 13+ years in Infrastructure design and maintain, PHP, Symfony, and API development. Skilled in building scalable systems, optimizing performance, and working with AWS, Docker, Redis, and Elasticsearch. Strong in translating business needs into clean, maintainable code. Proactive, communicative, and focused on long-term solutions.

Work Experience

Senior Engineer - FieldFlo

10/2025 - 11/2025

  • Designed, developed, and delivered new features while maintaining, optimizing, and modernizing existing applications.

  • Led the migration of legacy CodeIgniter 3 and jQuery components toward a modern Laravel and Vue.js SPA architecture.

  • Integrated AI and LLM-powered capabilities across multiple application modules, enhancing functionality and automation.

  • Designed complex AI skill orchestration workflows to streamline software development, code generation, testing, and code reviews.

  • Developed proofs of concept (PoCs) for new modules and features based on customer requirements and Customer Success (CS) feedback.

  • Defined technical solutions, system architecture, and implementation strategies for new and existing functionality.

  • Evaluated and proposed AWS-based infrastructure and deployment architectures, including Docker containerization, scalability, and performance optimization.

  • Investigated and resolved complex technical challenges and production issues, improving system reliability and maintainability.

  • Conducted code reviews, enforced coding standards, and promoted engineering best practices.

  • Planned and estimated development tasks, coordinated delivery through Jira, and managed Git branching and collaboration workflows.

  • Optimized application performance using Redis caching and backend improvements.

  • Mentored developers, provided technical guidance, and contributed to engineering process improvements.

  • Identified opportunities for innovation, technical debt reduction, and long-term platform modernization.


Tech Stack: PHP 8, Laravel, CodeIgniter 3, Vue.js, JavaScript, jQuery, REST APIs, LLM/AI Integrations, AI Skill Orchestration, Redis, Docker, AWS, Git, Jira.

PHP Developer – Sporting Rock d.o.o.

12/2023 – 08/2025

  • Led feature development, stack upgrades, and optimization
  • Mentored development team
  • Stack: PHP 8, Symfony 5, Sulu, API Platform, Redis, Varnish, Docker, AWS, Elasticsearch

PHP Backend Developer – Computer Rock d.o.o.

05/2021 – 11/2023

  • Specialized in Symfony 5 and PHP 8
  • Handled AWS deployment with Jenkins
  • Direct client communication

IT Manager / Developer – PS Fashion

08/2012 – 05/2021

  • Digitalized non-ERP business processes
  • Developed apps using Yii, Yii2, LAMP stack
  • IP Telephony: Asterisk server with 50+ extensions, 15+ remote locations, 2 countries
  • Managed complete IT infrastructure
  • Oversaw partner communications and negotiations
  • Coordinated procurement of IT equipment

System & Network / Ful d.o.o.

01/2008 – 08/2012

  • Developed internal betting tool
  • Tracked payments, internet quota changes, risk processing, notifications

Technical Skills

Backend

PHP (12+ yrs), Symfony (4 yrs), API Platform (3 yrs), Laravel (<1 yr), MySQL/SQL (12+ yrs)

DevOps

Docker, Jenkins, GitHub, AWS, Redis, Varnish

System Admin

Linux/Windows (12+ yrs), MikroTik, VPNs, Network Infrastructure, Asterisk

Web

HTML, CSS, JavaScript, jQuery, Ajax

Other

Power BI, .NET, Data Mining, REST APIs

Projects

#FieldFlo Software

  • Developed and integrated AI-powered features, including LLM integrations, skill orchestration, and supporting AI development workflows.

  • Designed and implemented new application features, enhancing functionality, performance, and maintainability.

  • Modernized legacy applications by migrating from CodeIgniter/jQuery to Laravel/Vue.js.

  • Built AI-assisted development workflows for code generation, automated reviews, testing, and quality assurance.

  • Researched and proposed AWS-based cloud infrastructure and deployment architectures to support existing and upcoming features.

  • Contributed to technical architecture decisions, code quality improvements, and development process optimization.

FieldFlo Platform

#HockeyBundesliga

  • Worked on multiple complex back-end projects under NDA as a key contributor.
  • Multi-Domain Web Application & Federation Management Tool
  • Unified admin platform for multiple sports federations.

hockeybundesliga.de

#PSFashion

  • Digitalized non-ERP processes
  • Full app development using Yii, Yii2, LAMP
  • IP Telephony: Asterisk with 50+ extensions, 15+ remote locations, 2 countries
  • Complete ERP-integrated B2B solution for franchises and wholesale buyers
  • Internal task-based communication tool for inter-department collaboration with assignments, deadlines, comments – mini CRM solution

psfashion.com

#BrazilBet

  • Internal betting tool, payment tracking
  • Internet quota changes, risk processing, notifications

brazilbet.rs

#Transport Logistics

  • Implementation of transport order management and execution tracking
  • Vehicle database management and real-time status monitoring
  • Creation and optimization of routes, including driver scheduling and routing
  • Development of reports on route completion and vehicle usage

#School management

  • Management of a private language school
  • Development of an application for student, group, and payment tracking
  • Organization and monitoring of class schedules
  • Teacher records and lesson management

LittleBigBen@Instagram

#Production Process Management

  • Creation and management of production orders for PE, PP, and paperboard packaging
  • Work tracking based on production orders
  • Monitoring material and finished goods inventory
  • Invoicing and tracking customer financial status

www.miplast.co.rs