Toptal Blog

Nicolas Piro is a data scientist and AI engineer with more than 15 years of experience across e-commerce, healthcare, and industrial applications. He specializes in deep learning, large-scale model deployment, and applied research, with extensive hands-on work using PyTorch, TensorFlow, and modern compiler-based optimization tools.

Ranier is a senior developer with extensive experience building enterprise web and mobile applications using React and React Native. He has worked across a range of industries, including as a Unity 3D game developer building gameplay systems, content tools, and automation scripts. He has experience in AngularJS, the Google Maps API, and Flask back ends and currently works at AWS on React-focused development projects.

Joe is a principal Java developer with more than 14 years of experience building enterprise applications with Spring Boot. He has held senior engineering and architecture roles across a range of industries, including at IBM-acquired Apptio, Anthem Blue Cross Blue Shield, and most recently Okta, where he worked on identity-focused development projects.

Thomas is a full-stack developer and technology architect with experience in SaaS, fintech, and enterprise systems. Skilled in JavaScript, Java, Node.js, React, and AWS, he builds scalable web applications, trading engines, and declarative workflow platforms for clients worldwide, combining deep engineering expertise with cross-domain problem-solving.

Shivam is a senior Salesforce consultant and full-stack developer specializing in CRM transformation, data migration, and automation across clouds. Previously part of Salesforce’s internal consulting team, he has extensive experience designing scalable data architectures and integrations using Apex and custom Lightning components. He also works with Agentforce and CRM Analytics to help enterprises accelerate decision-making and drive measurable ROI through stronger customer engagement and retention.

Khalil is a data scientist and marketing analytics expert. He is currently a Go-to-Market Lead at Databricks, the data and AI company trusted by more than 20,000 organizations worldwide to build and scale data, analytics, and AI applications. Previously, he managed the analytics infrastructure for AMN Healthcare, the biggest healthcare staffing company in the US. Khalil has developed marketing models that enabled companies and agencies to cut hundreds of thousands of dollars of ineffective marketing spend every year. He holds an MS in Financial Markets and Investments and a BE in Mechanical Engineering.

Teimur is a software engineer with more than 10 years of experience building React applications. He partners with clients to design high-performing, scalable solutions and has held senior roles at a diverse range of companies, including at global fintech organization Klarna and most recently for AI-driven startup Speechify.

Emiliano is a cloud engineer with more than a decade of experience designing and operating AWS-based architectures. He works with organizations on cloud adoption, helping teams create cloud-native systems and transition existing workloads to containerized infrastructure. His work focuses on building reproducible infrastructure, optimizing cloud costs, strengthening security, availability, and performance, and automating software delivery pipelines to support reliable operations.

Alan is a senior front-end developer with more than 15 years of experience building products using React, TypeScript, and GraphQL. He has led SaaS revamps, built dashboards, implemented e-commerce sites from designs, and developed local-first mobile apps using Next.js, React Native, Tailwind CSS, and Prisma. His focus is on creating performant, reliable, and maintainable front-end code.