22.10.2026 aktualisiert
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100 % verfügbarSenior Software Engineer | Architecture, Full-Stack & AI Agent Systems
Tirane, Albanien
Nur Remote
Master's Degree, Information TechnologyÜber mich
Senior Software Engineer with 10+ years of experience building scalable backend systems across fintech, mobility, and travel. Currently leading AI agent development, with expertise in system architecture, infrastructure, payments, engineering leadership, and technical strategy.
Skills
ServerlessPHPAPIsClient-Server-ArchitekturSaasCloud-EngineeringDevOpsIntelligente SystemeLaravelScrumSoftware ArchitectureAWS CLIAnsibleScaled Agile FrameworkSolution Architecture
AI & Agentic Systems
Expertise in building and maintaining AI coding agents using Mastra, Multi-Model LLM Orchestration (Anthropic Claude, OpenAI, DeepSeek, GLM, Qwen, Llama, Gemini via OpenRouter), RAG (FAISS), Tool-Calling Agents (Zod), Parallel Multi-Agent Workflows, Langfuse Observability, and Cost-Aware Model Routing.
Cloud & Infrastructure
Deep knowledge of AWS services including Lambda, API Gateway, ECS, S3, CloudWatch, and Route53, combined with Terraform for Infrastructure as Code, CI/CD pipelines, and Containerized Deployments.
Backend Development & Frameworks
Proficiency in Node.js, Express.js, PHP, Symfony, Laravel, JavaScript, and VueJS for building scalable, multi-tenant SaaS platforms and microservice architectures.
Architecture & Best Practices
Strong foundation in Microservices, Multi-Tenant Architecture, Event-Driven Architecture, CQRS, REST & gRPC API Design, High Availability & Scalability, TDD, Agile/Scrum, and GitFlow.
Data Management
Hands-on experience with MySQL, PostgreSQL, MongoDB, and Redis for data storage, caching, and queue management across large-scale applications.
Fintech & Payments Domain
Specialized knowledge in Multi-Tenant SaaS at Scale, Fintech & Payments including 3D Secure, Card Issuing, and Payment Gateways, as well as EV/Mobility Platforms and Travel & Booking Systems.
Technical Leadership
Experience leading engineering teams of 4 to 6 engineers, conducting code reviews, sprint planning, and consulting directly with C-level stakeholders on technical strategy and platform scalability.
Security & Penetration Testing
Background in freelance web and application vulnerability testing, recognized with 1st place at HackDay Albania 2015 in the penetration testing category.
Expertise in building and maintaining AI coding agents using Mastra, Multi-Model LLM Orchestration (Anthropic Claude, OpenAI, DeepSeek, GLM, Qwen, Llama, Gemini via OpenRouter), RAG (FAISS), Tool-Calling Agents (Zod), Parallel Multi-Agent Workflows, Langfuse Observability, and Cost-Aware Model Routing.
Cloud & Infrastructure
Deep knowledge of AWS services including Lambda, API Gateway, ECS, S3, CloudWatch, and Route53, combined with Terraform for Infrastructure as Code, CI/CD pipelines, and Containerized Deployments.
Backend Development & Frameworks
Proficiency in Node.js, Express.js, PHP, Symfony, Laravel, JavaScript, and VueJS for building scalable, multi-tenant SaaS platforms and microservice architectures.
Architecture & Best Practices
Strong foundation in Microservices, Multi-Tenant Architecture, Event-Driven Architecture, CQRS, REST & gRPC API Design, High Availability & Scalability, TDD, Agile/Scrum, and GitFlow.
Data Management
Hands-on experience with MySQL, PostgreSQL, MongoDB, and Redis for data storage, caching, and queue management across large-scale applications.
Fintech & Payments Domain
Specialized knowledge in Multi-Tenant SaaS at Scale, Fintech & Payments including 3D Secure, Card Issuing, and Payment Gateways, as well as EV/Mobility Platforms and Travel & Booking Systems.
Technical Leadership
Experience leading engineering teams of 4 to 6 engineers, conducting code reviews, sprint planning, and consulting directly with C-level stakeholders on technical strategy and platform scalability.
Security & Penetration Testing
Background in freelance web and application vulnerability testing, recognized with 1st place at HackDay Albania 2015 in the penetration testing category.
Erfahrung
Berufserfahrungmehr als 10 Jahre
Freelancer seit2013
Sprachen
EnglishverhandlungssicherItalianGrundkenntnisse
Projekthistorie
Architect and maintain Mastra-based AI coding agents that turn natural-language app-editing requests into multi-phase workflows across per-app Expo Router workspaces on Adalo's multi-tenant, org-scoped maker platform. Built a multi-model LLM routing layer spanning Anthropic Claude, OpenAI, and open-weight models via OpenRouter, cutting per-generation cost ~30x and latency ~3x. Designed Zod-validated tool-calling agent actions and built durable per-app agent memory with full observability via Langfuse tracing.
Led backend product development for upcoach, a multi-tenant SaaS coaching platform serving independent coaches worldwide. Advised leadership on platform scalability and technical roadmap. Ran Agile delivery via sprint planning, standups, and GitFlow-based release management.
Architected and led a 10+ microservice AWS platform for GreenAir's CRM and EV-transaction microservices using gRPC for inter-service communication, sustaining 99.9% uptime and processing 50k+ transactions/month. Directed infrastructure provisioning and scaling with Terraform, generating millions in annual revenue across German and Austrian EV markets. Designed and shipped partner-facing APIs expanding the partner ecosystem.