Ismail I.

Engineering Lead & Senior Full-Stack .NET / Angular Developer | 20 years building and shipping production software for US and European clients, telecom operators, and startups. Need someone who can lead the team AND write the code? That's exactly what I do. For the past 4+ years I've worked as an Engineering Lead for a US-based digital agency here on Upwork (2,900+ hours on one ongoing contract), delivering systems for clients in insurance, education, energy, logistics, and talent management. In my day role I'm an Engineering Manager at Mondia Media, leading teams that build and maintain subscription portals for Vodafone Germany, O2 Germany, and A1. WHAT I CAN DO FOR YOU • Build web apps and APIs end to end: ASP.NET Core Web APIs, Angular, React, Vue, Ionic mobile apps • Cloud and data: Microsoft Azure, AWS, SQL Server, MySQL, Cosmos DB, MongoDB, SSIS/SSRS, CI/CD pipelines • AI-powered features: integrating AI service providers into real products (e.g., AI-generated explanations on an education platform) • Fix and improve existing systems: performance bottlenecks, root-cause analysis, legacy .NET modernization, security hardening • Lead your team: Agile/Scrum, code reviews, automated testing, estimation, documentation, hiring support RECENT CLIENT WORK • Insurance platform (US): .NET Core APIs, Angular + Ionic app, Cosmos DB, Azure services • AI-driven education platform (US): .NET Core, Angular, AI provider integrations on Azure • Special-education funding analysis (US): .NET Core APIs + React, recommending plans to maximize High-Cost Aid • Energy services system (US): .NET Core Web APIs, Angular/Ionic, SQL • Package shipment and talent acquisition systems (US): .NET MVC, AngularJS, Windows services, SQL • Telecom value-added services: Orange Games Plus, MuzicUP (music distribution across 40+ operators incl. Orange, Vodafone, Etisalat), direct carrier billing engines, SMS gateways • Contrato: contract-workflow automation with Angular, ASP.NET Core, SignalR, and Azure WHY CLIENTS WORK WITH ME • Senior judgment, hands-on code: I architect, review, and write production code myself • Long-term reliability: my current Upwork engagement has run continuously since 2022 • Clear communication: regular updates, realistic estimates, no surprises • Quality first: tested, documented, maintainable code that your next developer can pick up easily Certified in Managing Agile Teams and Product Design Sprints (University of Virginia), Big Data and Machine Learning (UC San Diego), and AWS Machine Learning Foundations. BSc in Computer and Information Sciences, Excellent with Honors. Have a new product, a struggling codebase, or a team that needs technical leadership? Send me a message and let's talk about how I can help.