About
Zlatko Jončev completed a postdoctoral fellowship at EPFL's Lab of Artificial Chemical Intelligence, where he met co-founder Andres. He is developing AI agents to automate workflows in chemistry and pharmaceutical R&D.
Founder at b12 LabsYC S25
Intro paths
YC
Zlatko went through Y Combinator (Summer 2025) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Diana Hu, General Partner at Y Combinator — the partner who ran b12 Labs's batch and knows the company first-hand. YC profile ↗
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In turn, Zlatko can intro founders to b12 Labs's investors below.
b12 Labs's investors · 3
Co-founders at b12 Labs
AB
Andres BranFounder
Experience
- b-12 (YC S25)Co-Founder & CEOcurrent2025 — present
- EPFL (École polytechnique fédérale de Lausanne)Scientific Collaborator/Postdoc - Lab of Artificial Chemical Intelligence (LIAC)2023 — 2025Lausanne, Vaud, Switzerland
- Chemspeed TechnologiesJunior Software Engineer/AI-ML Consultant2023Basel Area
- Chemspeed TechnologiesAutomation Chemist2022 — 2023Basel Area
- University of Basel, SwitzerlandTeaching Assistant2018 — 2022Basel, Canton of Basel-Stadt, Switzerland
- Petnica Science CenterAssistant Various Roles2012 — 2016Petnica, Serbia
- RocheInternship in Medicinal Chemistry - IAESTE trainee placement2015Basel, Kanton Basel-Stadt, Switzerland
- Sandoz (Lek, Ljubljana)Regional BioCamp2015Ljubljana, Slovenia
- Forschungszentrum JülichGuest Student Programee2014Bonn Area, Germany
Skills & more
Version Control11Git9Software Development6Method DevelopmentAttention to DetailClinical Development1Knowledge Acquisition1Drug Discovery1Data CurationSoftware Design1Emerging TechnologiesPrototyping
+12 more
Data StructuresSynthetic Organic ChemistryArtificial Intelligence (AI)Reasoning SkillsResearch ProjectsUniversity TeachingGraduate StudentsGraduate LevelData ScienceProgrammingComputer ScienceCode ReviewLanguages English · German · Italian · Serbian
- Mega Guided Projects — The Machine Learning Company
- Advanced Learning Algorithms — Coursera
- Supervised Machine Learning: Regression and Classification — Coursera
- edX Verified Certificate for Introduction to Computational Thinking and Data Science — edX
- Innosuisse Start-up Training Business Concept (Module 2) — Innosuisse
- edX Verified Certificate for Introduction to Computer Science and Programming Using Python — edX
- edX Honor Code Certificate for Medicinal Chemistry — edX
- edX Honor Code Certificate for Introduction to Solid State Chemistry — edX
From Zlatko's professional profile.
Frequently asked questions
- Who is Zlatko Jončev?
- Zlatko Jončev completed a postdoctoral fellowship at EPFL's Lab of Artificial Chemical Intelligence, where he met co-founder Andres. He is developing AI agents to automate workflows in chemistry and pharmaceutical R&D.
- Where does Zlatko Jončev work?
- Zlatko Jončev is Founder of b12 Labs.
- What companies did Zlatko Jončev found?
- Zlatko Jončev founded b12 Labs.
- Where did Zlatko Jončev go to school?
- Zlatko Jončev studied at MITx Courses (XSeries, Computer Science); University of Basel (Doctor of Philosophy - PhD, Organic Chemistry); University of Basel (Master's degree, Organic Chemistry).
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
Sam AltmanPresidentFounded Tools for Humanity +3Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded Pursuit +1
+ 8,766 more
University of Belgrade mafia4
Also came through, then founded or led a company.
MITx Courses mafia3
Also came through, then founded or led a company.
Same school
Also attended MITx Courses5
Also attended University of Basel17
Christina UlardicPartner at Astanor VenturesMarkus GemuendSenior Advisor at Adjuvant CapitalButrint AliuAnalyst at Pureos BioventuresNadine KuglerHead of Tech Communications at QAI VenturesDavide OttoliniCo-founder at Korify CapitalRobin LauberInvestor at Korify Capital
+ 11 more
Also attended University of Belgrade10
Jovana RuzicExecutive Assistant at Collide CapitalGoran StevanovicPartner at South Central VenturesDavor SakačCEO at TS VenturesAleksandra LamentIR & Sustainability Operations Manager at ETF PartnersAleksaInvestor at EHE CapitalGordana Vunjak-NovakovicVenture Partner at Catalio Capital Management, LP
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+ 4 more
Shared employers
Also worked at b-12 (YC S25)1
Also worked at EPFL (École polytechnique fédérale de Lausanne)57
Raquel UrtasunFounder & CEO of WaabiBouraux LeopoldAI & Data Engineer at Newfund CapitalChristoph FreiPartner, Head of Energy at Emerald Technology Ventures AgYannick RitschelInvestor at Backbone VenturesChristian JaagBoard Member at CV VCGaurav SantAdvisor, Director, UCLA Institute for Carbon Management at Overture Climate
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+ 51 more
Also worked at Roche95
Joe HorsmanInvestor at Madrona Venture GroupMarco PrunottoInvestor at MedicxiMike FitzgeraldInvestor at High AlphaUri LopatinInvestor at Khosla VenturesJan-Olivier FillolsSenior Managing Director at Marlin Equity PartnersNarges BaniasadiVenture Partner at Think+ Ventures Management, Llc
+ 89 more
