About Leutrim
9+ years of experience engineering high-performance, microservice-driven SaaS and Fintech platforms. I specialize deeply in the full-stack TypeScript ecosystem, architecting bulletproof database layers, and solving complex concurrency and data isolation challenges.
Instead of just writing features, I own product surfaces end-to-end—turning ambiguous customer requirements into scalable, production-ready systems.
English
Native or bilingual
Albanian
Native or bilingual
Remote only
Primarily works remotely
Experience
- WebchainSenior Software EngineerMay 2025 - Today (1 year and 3 months)Led core architectural design and backend execution for a high-security cryptocurrency financial ecosystem, enabling users to deposit digital assets and execute real-time retail purchases via virtual credit cards.Architected and built from scratch a comprehensive B2B SaaS management platform using NestJS, TypeScript, and PostgreSQL to handle complex, multi-tenant system controls.Engineered a custom crypto-orchestrator pipeline that dynamically calculates, locks, and deducts digital asset balances instantly to clear fiat card processing amounts.Spearheaded an Nx Monorepo migration orchestrating multi-service codebases including compliance, crypto-orchestrator, and fiat-pay applications, configuring compilation speeds via SWC-backed test runtimes.Streamlined production build pipelines by utilizing custom Nx executors (prune-lockfile and copy-workspace-modules) to isolate deployable assets and decrease production Docker container image sizes.Integrated Fireblocks TS SDK securely to handle institutional-grade digital wallet generation, asset balance synchronization, and multi-party transaction signing workflows.Developed reusable core library modules (openpayd, pubsub, redis, sumsub) to standardize automated banking rails, real-time KYC/AML compliance checks, and decoupled pub/sub message brokers across the monorepo.
- FluzSenior Backend DeveloperDecember 2024 - March 2025 (3 months)Onboarded on short notice as an independent contractor to lead a critical, high-load backend initiative ahead of a major product release.Engineered a sophisticated "Challenges" system to drive user engagement and reward progression using flexible relational database schemas.Implemented invite-based progression and referral rewards, featuring customizable reward types to maximize product flexibility and user retention.Developed robust and optimized RESTful APIs, ensuring scalability and high performance under load via Redis caching.Collaborated closely with frontend and mobile teams to guarantee seamless user experiences and eliminate API contract integration friction.Rapidly addressed critical production issues and architectural bottlenecks under strict timelines to ensure timely product release and enhance system reliability.
- ProxifyProxify / Senior Backend DeveloperJune 2023 - May 2025 (1 year and 11 months)Germanydiets with personalized data-driven recommendations.Architected and optimized database solutions using Supabase (PostgreSQL) and implemented secure role-based authentication/authorization.Developed low-latency algorithms leveraging Edge Functions for real-time data processing.Integrated third-party enterprise APIs, including DHL (real-time package tracking) and OpenHealth (real-time blood test results), ensuring secure data synchronization.Delivered seamless backend integration with a Svelte frontend and mentored engineering team members on system design best practices.Droppie Project: Engineered complete cloud backend infrastructure for an environmentally focused mobile app incentivizing community waste collection.Developed robust and scalable RESTful APIs using Node.js and optimized complex MongoDB schemas.Managed cloud deployments on Google Cloud Platform (Cloud Run & Cloud Functions) to deliver scalable, containerized production applications.Monitored system telemetry and orchestrated distributed error tracking across microservices using GCP Cloud Logging.
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Education
- Bachelor s in Computer Science and EngineeringUBT University2019Bachelor s in Computer Science and Engineering