Francisco Iglesias

Tech Lead @ Tree Nation · Podcast Co-Host @ Frontend Army

Driving frontend architecture and engineering excellence at Tree-Nation, a global reforestation platform. Proven track record of owning the full frontend lifecycle — from technical design and code review to mentoring engineers and aligning with product and business stakeholders.

Job experience

Technical LeadTree-Nation · Barcelona, Spain2025-06PresentLeading engineering teams to build scalable, high-quality web applications. Bridging technical strategy with hands-on development to drive product innovation and team growth.
Senior Frontend EngineerTree-Nation · Barcelona, Spain2024-062025-06Built and maintained high-performance frontend features for Tree-Nation's platform, helping users and companies track their global reforestation impact through intuitive, modern interfaces.
Podcast Co-HostFrontend Army · Barcelona, Spain2022-06PresentCo-hosting a Spanish-language podcast dedicated to frontend development, sharing practical insights, trends, and interviews with developers to inspire and grow the tech community.
Sr. Frontend EngineerDeel · Barcelona, Spain2023-062024-08Developed scalable frontend solutions at one of the world's leading global payroll and HR platforms. Delivered key product features in a fast-paced, fully distributed international team.
Sr. Front-End EngineerAnkorstore · France2022-072023-06Drove frontend development for the Growth tribe at Ankorstore, a B2B wholesale marketplace empowering independent brands and retailers across Europe. Focused on conversion optimization and scalable UI solutions.
Sr. Front-End EngineerTrue North · Buenos Aires, Argentina2020-122022-06Crafted full-stack web applications for diverse client projects using Next.js, React, Python, Nest, and Express — delivering clean, performant code across modern tech stacks.
Solutions DesignerWolox (part of Accenture) · Argentina2020-022020-08Served as a technical member of the sales team at Accenture, uncovering client needs, proposing tailored solutions, and optimizing estimation processes to drive stakeholder satisfaction.
Engineering ManagerWolox (part of Accenture) · Argentina2019-082020-08Led frontend engineering teams at Accenture, setting technical standards, mentoring senior developers, and ensuring quality delivery of frontend projects while contributing as a technical advisor in sales.
Front End Technical LeaderWolox (part of Accenture) · Argentina2018-062019-08Led cross-functional development teams of up to 9 at Accenture, managing project plans, Scrum ceremonies, and client communications to deliver high-quality software on time. Grew into a frontend technical leadership role — spearheading tech talks, mentoring developers, coordinating projects, and guiding the career growth of the frontend team.
Software DeveloperWolox (part of Accenture) · Argentina2017-062018-10Started as a Front-End developer building solutions across education, e-commerce, and banking industries, using JS, CSS, HTML, React, React Native, Angular & Vue, hosted on Heroku and AWS. Grew into a lead role taking technical ownership across multiple projects.

Portfolio

Frontend Army Podcast

Frontend Army is a community-driven podcast made by frontenders for frontenders. It exists to share practical frontend knowledge, bring real experiences from the field, and help developers keep growing through conversations, interviews, and community exchange.