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American (native English speaker) born and raised in New York City and now living in the richest country in the world, Luxembourg! I'm a product-centric CTO, engineering leader, and software engineer with 12+ years of experience crafting world-class software. I have strong expertise in React, Node, TypeScript, Python, Go, AI/ML, Azure, and much more. I've scaled organizations responsible for defining, engineering, and operating mission-critical systems optimizing $10B+ space assets while partnering with companies like SpaceX and other space. I have a powerful track record of establishing autonomous product-minded teams, pioneering agentic development workflows, and driving measurable commercial impact. For Codementor mentees: I remember exactly what it feels like to be stuck. You are writing good code, but you aren't sure how to break through to the next level. Whether that is becoming a Senior, Staff, or Principal Engineer, or eventually a VP of Engineering or CTO. Nobody hands you a manual for that transition. I started exactly where you are. I went from building React UIs as part of a scrum team to leading large organizations engineering the systems for multi-billion dollar satellite assets. Today, as the CTO of Symphonee AI, I still code every day. I do this because you can't lead engineers if you don't understand the reality of the work. I am here to help you see the things you don't know you don't know. I want to be the mentor I wish I had. Someone to cut through the noise, show you the shortcuts I learned the hard way, and help you get to that next level faster. Whether you are feeling lost, facing a specific technical challenge, or just ready to move up, let's talk.
I’m a Software Engineering Manager and backend engineer with 13+ years of experience building scalable, reliable software systems and mentoring developers across different experience levels. My expertise spans: ASP.NET Core & C# Backend architecture System design Distributed systems Cloud infrastructure DevOps practices Software design patterns Scalable backend systems I also hold multiple AWS certifications, including: AWS Certified Solutions Architect AWS Certified SysOps Administrator AWS Certified DevOps Engineer Over the years, I’ve designed and deployed production infrastructure using: Terraform Docker AWS ECS Application Load Balancers (ALB) CloudFront + S3 static website hosting Docker Swarm on EC2 I’ve led engineering teams, conducted technical interviews, mentored developers, and helped engineers strengthen both their coding and architectural thinking. I enjoy breaking down complex engineering concepts into simple, practical explanations that developers can apply immediately in real-world systems.
Joseph Okojie is a highly skilled software developer and software engineering manager with over 9 years of experience in the field, with a keen interest in change management, product development, business process improvement and digital transformation.
Technical Project Manager & Systems Architect with 14+ years of experience delivering scalable, high-impact digital solutions across **retail, public sector, healthcare**, and **e-commerce**. Proven ability to bridge technical vision with execution—leading cross-functional teams, managing architecture strategy, and executing projects using Agile and Waterfall methodologies. Hands-on expertise in **cloud-native system design (GCP, AWS, Azure)**, full-stack development (MERN, PHP, JavaScript), and modern DevOps practices. Adept at stakeholder engagement, NFR definition, and ensuring cost-effective, secure, and resilient technical solutions.
Energetic software engineer with 12+ years experience developing robust code for high-volume businesses. Prolific, full stack developer with a passion for metrics and beating former "best-yets." Prototyped 25 new product features per year for Elegant Inc. Increased code-efficiency of Versatile Solutions customer portal by 55%. Boosted customer retention by 25%. Spearheaded a team that won the 2016 Talent Award for cloud computing. An enthusiastic team player and deep creative thinker. At Oz Online, slashed costs by 32% in 6 months by implementing Tools and Processes training across all departments. Cut stockroom waste by 65% with a new Kanban system. Skilled in Continuous Improvement, Agile & Scrum Implementation and Business Process Improvement. Met 150% of revenue goal in fast-paced tech firm. Led 9 cross-functional teams to 25% efficiency improvement and $1.2M cost savings.
With over 15 years of experience across software engineering, architecture, and product leadership, I specialize in building high-performing engineering teams, architecting scalable systems, and driving strategic product delivery. As a Tech Lead and adjunct faculty member, I combine hands-on technical expertise with leadership, mentorship, and education to deliver enterprise-grade solutions while developing the next generation of engineers. Technology Stack: Mobile & Web: Flutter/Dart, React, Multi-tenant Architectures Cloud & Backend: AWS (AppSync, Amplify, Lambda), Firebase, GraphQL, REST APIs Languages: C/C++/C#, Dart, Java, Python, JavaScript/TypeScript Specialized: IoT, Embedded Systems, Edge AI, Information Security Architecture: Clean Architecture, Microservices, Event-Driven Systems Leadership & Roles: Tech Lead / Chapter Lead – Leading cross-functional teams of 8+ engineers Product & Engineering Manager – Driving product strategy and delivery Solutions Architect – Designing enterprise systems and multi-tenant platforms Educator & Mentor – Adjunct faculty + 300+ mentees on Codementor Key Expertise: Teaching computer science fundamentals and advanced topics Leading distributed engineering teams and establishing technical standards Architecting and delivering complex SaaS platforms Strategic product roadmapping and stakeholder management Building developer assessment frameworks and quality systems Mentoring engineers from junior to senior levels Educational Background: PhD Candidate, Computer Engineering (Edge AI Research) Master of Computer Engineering Master of Business Administration (MBA) Postgraduate Diploma, Software Development Skills (UNIX) Bachelor of Computer and Information Sciences Current Focus: Building scalable multi-tenant platforms, AI-driven development workflows, team capability development, and strategic consulting and education.
18+ years of experience with iOS and over 200 iOS applications written in Objective-C and Swift. 20+ years of lecturing experience (iOS, OOP, Software Architecture) Mentoring others is my first love - and I have a tone of experience in that field. I started teaching others math, electronics, and electrotechnics and after some time - I started working for a couple of IT schools where I teach iOS and teach people to think differently. Check out my iOS portfolio: [https://www.djuroalfirevic.com/](https://www.djuroalfirevic.com/)
Professional software engineer I have worked in mobile software development business for almost a decade now. Currently I'm working as technical specialist at UpCode Ltd, developing cutting-edge solutions for our customers. In my current position I have privilegium to follow mobile trends and see how the field of mobile software development changes. But it also gives me a great challenge to respond to this change, with solutions that not only work today but in the future also. My career has taught me a great asset of skills all from low programming languages into high level project management. I'm daily driven by my enthusiasm to create better apps for mobile user, apps that really take advantage of best features mobile devices can offer. Specialties: Software engineering, Agile development, C/C++, Java (J2ME and Android), Objective-C (iOS), Qt, C# (Desktop and Windows Phone),
If you've gotten this far you're on the right track and have come to the right place. As a serial entrepreneur, passionate about spreading knowledge and guiding others, It would be my pleasure to help whoever might need it. I have a soft spot for budding Software Engineers, and because of that I make it my mission to help you grow. Whether it's help with course work or complex web development projects, I'm here to help in any way I can! Look forward to working with you! Rich
Creative and energetic programmer with proven leadership skills and almost 10 years of progressive experience in developing, implementing, technical solutions for complex infrastructures and strategic planning for renowned software development companies.
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