I’m Daniel, an AI expert and applied researcher. I build AI systems and write about how technology changes work, everyday life, and our ability to choose.
My AI work combines building products with applied research. I develop AI tools for commerce. My MBA thesis at EAFIT examines how businesses adopt AI agents, through interviews with leaders at ten Colombian fashion companies. I write from that work, distinguishing what I have tested, what the evidence suggests, and what I believe may happen next.
Most of my writing starts with curiosity: a song, a difficult conversation, or a question about why a person or system behaves the way it does. Sometimes that question leads to software.
The writing stays close to ordinary choices: ambition, impostor syndrome, agency, and the small ways we postpone a life or choose it again.
I help teams turn AI ideas into working products, from product strategy to agents, data, and integrations. If you are deciding what to build, how to evaluate it, or how to bring it into your business, let’s talk.
Research, interviews, talks, and reporting on my work, with original sources and context.
An interview with cofounders Parker Irving and Daniel Marulanda about Dondo’s evolution. Daniel discusses adapting product catalogs for different countries and online sales channels.
In this Spanish-language webinar, I presented Geobristol as GeoSAT’s CTO and discussed its work with Medellín’s agricultural sector alongside speakers from Argentina and Chile.
Daniel Marulanda and Jesús Márquez discuss Dondo’s early marketplace. Daniel explains the algorithm behind exchanges involving several people and how unused possessions could become useful to others.
Daniel explains Ctzen’s incident-prioritization tools and international plans. The interview documents projects in US cities, Y Combinator Fellowship, Parallel18’s third generation and the upcoming South Summit.
The Faculty of Mines profiles Daniel Felipe Marulanda and Carlos Daniel Sánchez, tracing their work from HuecosMed to Entumano and their participation in entrepreneurship and internationalization programs.
My 2026 MBA thesis studies how ten Colombian fashion businesses use AI agents, focusing on the data, integrations and organizational practices that shape their reported results.
A company launch report introduces Dondo’s AI tools for ecommerce catalogs in Colombia, following its international expansion, and describes the platform’s work adapting product content.
This company feature describes Dondo’s product content and localization tools, including its reported work with Mario Hernández. It focuses on the platform’s commercial applications.
Company coverage of Dondo’s Colombian launch after work in the United States and United Kingdom, describing its use of AI to manage and adapt ecommerce catalogs.
A personal essay about the distance between constant digital contact and meaningful connection, and how the pace and responsibilities of entrepreneurship can complicate friendships.
An English-language webinar with EOSDA and its partners, where I introduced Geobristol and discussed how GeoSAT adapts satellite monitoring tools for agriculture in Latin America.
Earth Imaging Journal published the GeoSAT–EOSDA partnership announcement, quoting me as GeoSAT’s CTO on bringing satellite imagery and geospatial tools to agricultural work in Latin America.
Uganda Broadcasting Corporation carried the partnership announcement, including my comments as GeoSAT’s CTO about combining local geospatial expertise with EOSDA’s satellite analysis tools for agriculture.
EOSDA describes its partnership with Colombia’s GeoSAT and the Geobristol platform, including a Medellín agricultural project involving the FAO. This is company coverage rather than a personal profile.
The Faculty of Mines profiles Daniel Marulanda as a Systems Engineering graduate and Dondo cofounder, introducing the marketplace’s exchanges of possessions, skills and money.
A graduation ceremony report lists Daniel Felipe Marulanda Posada among invited alumni speakers. It identifies his Systems and Informatics Engineering background and his technology roles at Dondo and GeoSAT.
Dondo appears in the ecommerce category of Forbes’ selection of 100 Colombian startups. Its entry identifies Daniel Marulanda as one of the company’s four founders.
Acueducto interviews Sebastián Yerovi, then Dondo’s head of growth, about testing growth strategies, understanding users and the advantages and disadvantages of implementing artificial intelligence.
Daniel Marulanda joins IU Digital’s open lecture series as a Dondo cocreator. The conversation is presented around curiosity, technological innovation and creating solutions to everyday needs.
Drawing on UNAL’s reporting, this story introduces Daniel Marulanda and Carlos Daniel Sánchez as Dondo cofounders and describes their digital barter application and early investment.
Forbes included Dondo among its 30 Colombian business promises for 2021. The company profile names Daniel Marulanda alongside Jesús Márquez, Parker Irving and Carlos Daniel Sánchez.
A university news interview with Daniel Marulanda about Dondo’s funding and digital exchanges. The report identifies the student cofounders and explains the application’s approach to reusing possessions.
In this episode, Dondo cofounder Jesús Márquez explains the digital barter platform’s early growth and the funding it received from individual technology investors.
Daniel Marulanda describes successive versions of Dondo’s barter application, lessons from early users and the company’s development after its funding round in early 2021.
The university profiles Daniel Marulanda and Carlos Daniel Sánchez as Systems and Informatics Engineering students and Dondo cofounders. Daniel discusses experimentation, product iterations and learning through setbacks.
A profile of Jesús Márquez’s entrepreneurial journey names Daniel Marulanda among Dondo’s cofounders. The story covers the team’s early development and its first major funding round.
Coverage of Dondo’s 2021 seed round identifies Daniel Marulanda and Carlos Daniel Sánchez as the founders leading its technology team during the digital barter stage.
An interview with Jesús Márquez about Crowdswap, Dondo’s earlier name. He explains circular exchanges between several users and the marketplace’s first months of public operation.
Coverage of IU Digital de Antioquia’s rector election lists Daniel Felipe Marulanda Posada among the governing council members who participated in selecting the institution’s new rector.
EAFIT and Ruta N’s bilingual case collection includes Scott McDermott’s study of Entumano. It examines entrepreneurship and technology commercialization; the publisher notes that teaching-case details may be adapted.
The Colombia-dev community’s public letter on eCenso security includes my name and handle among its signatories, supporting responsible reporting and clearer answers to technical concerns.
A profile of Daniel Marulanda and Carlos Daniel Sánchez follows their work from Huecosmed to Ctzen, including entrepreneurship support, US expansion and participation in South Summit 2017.
Daniel Marulanda, identified as Ctzen’s CEO, discusses the platform’s origins in Medellín’s pothole reporting and its work with local governments during coverage of the San Francisco event.
Esri lists Ctzen as a Startup Zone exhibitor and schedules its demonstration on citizen reporting and government incident response. The official program identifies the company, without naming a speaker.
In an independently authored essay about Medellín’s startup ecosystem, Philip Beere quotes Ctzen founder Daniel Marulanda on trust and the support he experienced through Y Combinator.
MinTIC’s announcement for the next awards cycle records Bacab’s Entumano as a 2015 winner in the private-organization category for open-government technology. It does not name Daniel.
Santiago Ríos introduces episode 56 of Ingresarios al Aire, in which Juan Villegas interviews Ctzen cofounder Daniel Felipe Marulanda about an app connecting citizens and governments.
An interview with cofounder Daniel Marulanda explores Ctzen’s citizen-reporting model, work with local governments and participation in Y Combinator Fellowship, the accelerator’s early-stage program.
El Tiempo lists Entumano among the 22 ventures selected from 360 applications for Colombia Startup 2015 and describes its approach to collecting and processing citizen complaints.
Alongside a Panamanian pothole-reporting initiative, the newspaper identifies Daniel Marulanda as En Tu Mano’s leader and a previous participant in Medellín’s HuecosMed project.
A survey of Colombian reporting applications includes EnTuMano, describing its location-based reports and routing to responsible authorities. The article covers the product without naming Daniel.
A question I posted under dfmarulanda while integrating ArcGIS Android and Retrofit, documenting a library conflict and map-rendering problem encountered during mobile GIS development.
A report based on Universidad Nacional information identifies Daniel as Entumano’s lead developer and iOS developer, working with GeoSAT and fellow engineering students on citizen reporting.
Daniel Felipe Marulanda explains how Entumano uses locations and geographic boundaries to send citizen reports to the appropriate authorities, following the team’s earlier work on Huecosmed.
The event’s finalist catalogue identifies Daniel Marulanda as Ctzen’s CEO and describes its citizen-to-government reporting platform. The entry places the company in Medellín and the growth stage.
The university’s entrepreneurship directory identifies Daniel Felipe Marulanda as a member of the HuecosMED team and describes Entumano as its expansion into broader urban-reporting needs.
A public, self-authored professional profile identifies Daniel Marulanda as a Ctzen founder and describes his interests in technology, business, politics and music, linking directly to the company.
The company’s public profile lists Daniel Marulanda as CEO, Daniel Sánchez as CTO and Y Combinator Fellowship as its accelerator. It describes development operations in Medellín.
The accelerator’s official announcement lists Ctzen among the companies selected for its third generation in Puerto Rico. This institutional record confirms company participation without naming Daniel.
Esri’s regional partnerships page includes Ctzen as a government case study about geographic information systems. The listing concerns the company and does not identify Daniel personally.
My GitHub profile brings together public repositories, forks and contributions under dfmarulanda, with links to Dondo and the same handle I use elsewhere online.
The public store listing for GeoSAT’s Terraes Funcionario describes its cadastral fieldwork application. It provides a product reference for the company, rather than independent coverage of my role.
At fifteen, I was performing on stage. On December 27, 2024, I tattooed “siempre es hoy” as a reminder not to postpone the life in front of me. I’ve written about those music years, ambition and impostor syndrome, and the choices we make when automation makes the alternatives harder to see.
2012–2015
While studying Systems and Computer Engineering at Universidad Nacional de Colombia, I helped build HuecosMed. Carlos Daniel Sánchez and I then developed Entumano, extending citizen reports to broken traffic lights, waste, and other problems in public spaces. The work was as much about getting an answer from a public agency as putting a point on a map.
2016–2017
With Ctzen, we built tools to connect citizens and local governments: report an incident, get it to the right team, and follow the response. We took part in the Y Combinator Fellowship in 2016. That chapter also took us to Puerto Rico with Parallel18 and to South Summit in Madrid.
Dondo
I co-founded Dondo with Carlos Daniel Sánchez, Jesús Márquez, and Parker Irving. We built a marketplace around digital barter, including swaps involving several people. Dondo later became an AI product for merchants. The interviews below follow both the marketplace and the work that came after it.
Now
At Dondo, I’m building AI tools for commerce. My work with GeoSAT is in geospatial systems. Octograma and Terraes’s public property-valuation tool are personal projects I build for fun: one explores Colombian public procurement, the other housing prices. My MBA thesis at EAFIT studies the adoption of AI agents through interviews with leaders at ten Colombian fashion businesses.
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