Greece/Kavala
EnglishCantonese
Baros Akriovs Jiang
Software Engineer
Baros is a software engineer with a passion for transforming complex challenges into simple, elegant code solutions. His work spans digital interfaces, interactive experiences, and the convergence of frontend and backend.
Work Experience
DFX5
05/2025 – 10/2025
Mobile Application Architect
Queretaro, Mexico | Remote
- Architected AI-powered SaaS workflows using Python, FastAPI, Node.js, NestJS, and OpenAI APIs for enterprise automation.
- Designed distributed REST and GraphQL APIs and orchestration pipelines that improved high-volume job throughput by 35%.
- Owned delivery from requirements and architecture through production.
- Mentored engineers across 2 development squads through architecture and design reviews.
Allcalls Technologies LLC
04/2024 – 05/2025
Senior Full Stack Developer
Sheridan, Wyoming, United States | Remote
- Architected and developed a multi-tenant SaaS platform using Laravel, Vue 3, and TypeScript, improving feature delivery speed by 25%.
- Delivered 18 REST API endpoints integrating payments, notifications, PostgreSQL, Redis, and third-party services.
- Implemented authentication and authorization using JWT, OAuth 2.0, and Laravel Sanctum, reducing unauthorized-access incidents by 35%.
- Automated PHPUnit and Jest testing for critical checkout and authentication workflows, reducing production incidents by 30%.
- Worked remotely for a US-based company, collaborating in a distributed engineering environment.
Toolla Inc
2022 - 2025
Full-Stack Engineer
- Led end-to-end development of custom web and mobile applications for international clients in cybersecurity, fintech, and healthcare, delivering projects on time and 10-20% under budget using Agile/Scrum methodologies
- Architected and implemented scalable full-stack solutions with React/Next.js/TypeScript or Angular 16+ (frontend), Node.js/Express or NestJS (backend), PostgreSQL/MongoDB, resulting in 40% faster page loads and handling 10,000+ daily users for high-traffic client platforms
- Developed cross-platform mobile applications using React Native (Expo) + TypeScript + Redux / MobX for state management, integrated with REST/GraphQL APIs, enabling clients to launch iOS & Android apps simultaneously and increasing user engagement by 25-35%
- Collaborated directly with clients and stakeholders to gather requirements, design system architecture, and iterate on features — reduced scope creep and delivered 95% client satisfaction ratings across multiple projects
- Delivered a React Native-based virtual card mobile app for a fintech client, achieving 4.8-star ratings on App/Play Store with 100,000+ downloads
Molequle GmbH
2021 - 2022
Senior Frontend Developer
- Led frontend architecture and implementation of a next-generation SaaS Customer Data & Experience Platform (CDXP) built with Next.js 12, TypeScript, and styled-components, delivering a highly performant, responsive, and pixel-perfect user experience that closely followed designer-provided specifications and company brand guidelines
- Architected and delivered production-ready browser extensions for Chrome and Firefox using React, TypeScript, and Tailwind CSS, implementing complex content scripts, background/service workers, popup and options UIs while ensuring consistent behavior and excellent cross-browser compatibility.
- Built robust, state-synchronized UI components (popups, options pages, overlay interfaces) leveraging React Query (TanStack Query) for efficient data fetching, caching, optimistic updates, and real-time background synchronization — resulting in smooth, tab-consistent user experiences.
- Engineered scalable, data-intensive frontend interfaces including client dashboards, analytics modules, profile views, and reporting features, utilizing modern patterns with React Query + TypeScript to achieve excellent performance and maintainable state management.
Education
Aristotle University of Thessaloniki
Bachelor in Information Technology, Computer Science, 2012 - 2016
Core Technical Skills
Frontend
ReactNext.jsTypeScriptJavaScriptVue.jsAngularHTML5CSS3Tailwind CSS
Backend
Node.jsExpress.jsNest.jsPythonDjangoFast APILaravelPHPJavaSpring Boot
APIs & Architecture
REST APIsGraphQLSOAPMicroservicesJWTOAuth 2.0Laravel SanctumDistributed Systems
Databases
PostgreSQLMySQLMongoDBRedis
Cloud & DevOps
AWSDockerGitHub ActionsCI/CDGit
Testing & Quality
JestPHPUnitPostmanAutomated TestingCode Review
AI & Automation
OpenAI APIsRAGn8nAI-powered workflowsAPI integrations
Leadership
Technical ArchitectureEngineering LeadershipMentoringHiringAgile/ScrumJiraStakeholder Management