English:
Upper Intermediate
Cesar C.
Vetted by YouTeam
Argentina
UTC -03:00
America/Argentina/Buenos_Aires
English:
Upper Intermediate
Full-Stack Technical Lead
César Casas is a distinguished Tech Lead and Software Architect with over 25 years of experience in developing innovative solutions. A specialist in the JavaScript ecosystem (Node.js, MongoDB, React, React Native), he has led high-performance teams at companies such as Despegar.com, Globant, and Naranja X, contributing his strategic vision to complex projects. His focus on cost optimization and performance enhancement allowed him to reduce costs by 80% and improve the operational capacity of systems across various industries. As a consultant, he has played a pivotal role in IoT projects, transforming architectures for major corporations. César has also been an international speaker at tech events across America and Europe, sharing his expertise in emerging technologies. He is known not only for his technical mastery but also for his leadership, problem-solving skills, and mentorship, having advised over 120 startups throughout his career.
Want to hire this engineer?
Check if Cesar is availableExpertise
Years of commercial development experience
20 years of experience
Core technologies
Other technologies
Project Highlights
Stock42
Jun `24 - Present
6 months
Stock42- Enhance App Features, Track User Paths, and Accelerate Growth. The Next-Gen mobile startup generator.
Responsibilities & achievements
• Founder and CTO, leading software architecture and cloud solutions for the company. • Developed and implemented innovative server-driven UI languages. • Created open-source libraries to enhance software development processes. • Spearheaded the integration of AI solutions for code generation, optimizing development workflows.
NaranjaX
May `24 - Sep `24
4 months
At Naranja X, we use world-class technology to bring solutions closer. We are here to create products and services that surprise and help people improve their relationship with money.
Responsibilities & achievements
• Worked on backend and frontend development, providing advanced solutions for scalable applications. • Designed and implemented cloud architecture, optimizing system performance and infrastructure.
Alicunde
Jan `24 - May `24
4 months
Software engineering, specializing in consulting and development of customized IT solutions located in Madrid. We develop mobile applications and cloud-based systems.
Responsibilities & achievements
• Acted as a React Native performance expert, optimizing mobile applications for better efficiency. • Led technical efforts on micro-projects, ensuring high standards in performance and quality.
YoCripto
Dec `22 - Jan `24
1 year
Our fintech Yo is the first and only digital platform in Latin America that can unlock the intrinsic value of a physical asset and offer a line of credit through a credit card.
Responsibilities & achievements
• Led and defined the direction for the frontend team, focusing on building a high-performance mobile app using Expo and React Native for the first Mexican credit card with Bitcoin rewards. • Collaborated with the backend team to identify and resolve technical issues and bugs, ensuring seamless integration and functionality.
Globant
Jun `22 - Feb `23
8 months
We are a digital native company where engineering, design and innovation meet to reach large scale.
Responsibilities & achievements
• Led technical aspects of blockchain solutions projects, ensuring successful delivery and implementation. • Served as an expert in AWS DevOps, leveraging cloud services to optimize and manage infrastructure. • Specialized in Node.js and MongoDB, providing expertise in backend development and database management. • Led development efforts in React.js and React Native, guiding the team in creating responsive and efficient user interfaces. • Acted as a global solutions architect, designing and integrating technology solutions across projects.
Vision Group
May `21 - Mar `22
10 months
Independent project.
Responsibilities & achievements
• Assembled and led top-tier teams to develop exceptional mobile applications. • Specialized in building mobile apps for marketplaces, e-commerce, and social networks. • Oversaw the full product development lifecycle, from concept to delivery, ensuring high-quality results. • Transformed client ideas into fully functional products, meeting their specific requirements and expectations.
Rappi
Nov `20 - May `21
6 months
Rappi is a Latin American tech company and the first SuperApp in the region. We are a young Latin American team of technology entrepreneurs with a mission to drive progress in our region through our platform for digital commerce.
Responsibilities & achievements
• Led the engineering team in developing and scaling Rappi's technology infrastructure to support rapid growth. • Oversaw the design and implementation of new features and improvements for the Rappi platform, ensuring high performance and scalability. • Coordinated cross-functional teams to align engineering efforts with business goals and customer needs. • Managed the technical roadmap, prioritizing projects and allocating resources effectively to meet deadlines. • Fostered a culture of innovation and continuous improvement within the engineering team. • Implemented best practices for software development, including Agile methodologies and DevOps practices.
Pinny App
Dec `19 - Nov `20
11 months
Pinny, the app for those who are tired of always eating the same thing!! Food Marketplace, the best Dishes from the best Restaurants!
Responsibilities & achievements
• Designed and led the architecture for Pinny App, the first Social Network Selling Platform in the LATAM region, focusing on restaurants and independent chefs. • Developed a platform that combines social networking and e-commerce, allowing users to share opinions, photos, videos, and recipes, and make food purchases online. • Acted as React Native Architect, overseeing the development of the mobile application. • Led backend architecture development using Node.js, MongoDB, and Redis. • Implemented AWS cloud solutions to ensure the scalability and reliability of the platform.
MindGeek
Jun `19 - May `20
11 months
Offering world-class adult entertainment on some of the internet's safest platforms.
Responsibilities & achievements
• Developed and maintained the core frontend solutions using React.js, ensuring high performance and scalability for web applications with millions of users per day. • Established and updated code guidelines to maintain code quality and consistency across projects. • Created Proofs of Concept (PoCs) to benchmark and compare various libraries and technologies. • Led frontend teams in designing and implementing effective solutions for complex frontend applications. • Conducted research on emerging technologies and solutions to enhance the performance and capabilities of multiple web applications.
Goxo
Nov `18 - May `19
6 months
Boost your business by controlling your own delivery and take away service with Goxo. With Goxo you can create your own website and personalized ordering app with your brand in less than 48 hours through the Goxo App.
Responsibilities & achievements
• Designed and developed RESTful APIs using Node.js, MongoDB, Redis, and Swagger. • Architected and maintained mobile applications using React Native. • Managed Google Cloud infrastructure for scalable solutions. • Created and maintained business intelligence dashboards using React, Redux, Sagas, and React-table.
TrueNorth
Oct `18 - Mar `19
5 months
TrueNorth is one of the most successful fintech software development companies in the world having built three fintech unicorns from scratch, including Upgrade.
Responsibilities & achievements
• Led a team of developers focused on React.js and Node.js applications. • Implemented Auth0 and Keycloak for authentication and authorization solutions. • Developed and maintained Node.js and React.js applications. • Worked directly with the client, Zume Pizza, to deliver solutions tailored to their needs.
BSD Solutions
May `17 - Jun `19
2 years
Mobile App development. E-commerce & Marketplaces experts.
Responsibilities & achievements
• Assisted companies in upgrading their MVPs to robust, high-performing applications. • Provided training to teams on the latest best practices, design patterns, and features of Node.js, React.js, and React Native. • Designed and deployed new core solutions to enhance application performance and scalability. • Developed new MVPs for startups, focusing on innovative features and solid architecture.
SwarmSales Inc.
Mar `17 - Aug `17
5 months
A platform for companies to do better demand generation by recruiting freelance salespeople to broker warm introductions.
Responsibilities & achievements
• Developed applications using React, Redux, and Recompose libraries. • Configured and managed build processes with Webpack 2.0.
BSD Solutions
Jun `09 - May `17
8 years
Mobile App development. E-commerce & Marketplaces experts.
Responsibilities & achievements
• Led the development of Node.js applications with MongoDB, focusing on scalable and efficient backend solutions. • Directed React engineering efforts for both web and mobile applications, ensuring high performance and usability. • Designed and implemented RESTful architectures for web and mobile applications. • Provided consulting services for AWS, optimizing cloud infrastructure and deployments. • Developed and maintained social media metrics, tracking systems, and dashboards. • Created crawlers and scrapers for data mining and automation purposes. • Managed the development of e-commerce applications, enhancing online shopping experiences. • Oversaw team management, including hiring, mentoring, and project coordination.
BSD Solutions
May `08 - May `09
1 year
Mobile App development. E-commerce & Marketplaces experts.
Responsibilities & achievements
• Led the company as the CEO, managing a team of 15 employees. • Focused on acquiring new clients, driving business growth, and expanding the client base. • Oversaw project management, ensuring timely delivery and quality of projects. • Planned and executed SEO/SEM strategies to enhance online presence and search engine rankings. • Administered servers and managed IT infrastructure to ensure operational efficiency.
Agency
400+
GMT-11
Remote
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