# Ernest Christian Layman

> Ernest Christian Layman is the Jakarta-based co-founder and CEO of Rekosistem, an Indonesian waste management and circular economy company. An industrial engineering graduate and former Procter & Gamble commercial and sustainability professional, he began a waste venture with Joshua Valentino in 2018 before Rekosistem’s public launch in 2021. His work connects waste collection, material recovery, recycling partners, and digital tracking.

- **Role:** Co-Founder & CEO at Rekosistem
- **Organizations:** Rekosistem, KAHIJI (Khazanah Hijau Indonesia), Procter & Gamble
- **Nationality:** Indonesian
- **Education:** Bachelor’s degree in Industrial Engineering, Parahyangan Catholic University (Universitas Katolik Parahyangan)
- **Known for:** Forbes Indonesia 30 Under 30, 2021 (listed on his public LinkedIn profile)., Forbes Asia 30 Under 30, Industry, Manufacturing & Energy, 2022, with Joshua Valentino., Led Rekosistem through a $7 million Series A announced in May 2025.

## Career timeline

- **2015** — Graduated from Parahyangan Catholic University; joined Procter & Gamble as West Java Account Manager.
- **2018** — Co-founded KAHIJI with Joshua Valentino while still working at P&G.
- **2019** — Served as P&G Indonesia Sustainability Leader alongside trade marketing; left P&G in October. KAHIJI developed campus waste projects.
- **2021** — Launched Rekosistem publicly on 21 February and became CEO.
- **2022** — Named with Joshua Valentino to Forbes Asia 30 Under 30, Industry, Manufacturing & Energy.
- **2023** — Rekosistem secured $5 million in funding; Layman appeared at Mata Najwa’s Lampung festival session.
- **2025** — Rekosistem announced a $7 million Series A; Layman represented the company at SusHi Tech Tokyo.
- **2026** — Spoke at the Macao environmental forum in March; Rekosistem reported Jakarta Investment Award recognition in September.

## Achievements

- Forbes Indonesia 30 Under 30, 2021 (listed on his public LinkedIn profile).
- Forbes Asia 30 Under 30, Industry, Manufacturing & Energy, 2022, with Joshua Valentino.
- Led Rekosistem through a $7 million Series A announced in May 2025.
- Rekosistem included in Forbes Asia 100 to Watch, 2025 (company recognition).
- Rekosistem and Layman recognized in the Digital Innovation & Sustainable Technology category at Jakarta Investment Award 2026, according to the company.

## Latest updates

- **2026-09** — Rekosistem reported that the company and Ernest Christian Layman received Jakarta Investment Award 2026 recognition for Digital Innovation & Sustainable Technology.
- **2026-03** — Spoke at Green Forum Session 4 of the Macao International Environmental Co-operation Forum and Exhibition on 27 March.
- **2025-05** — Rekosistem announced a $7 million Series A led by Saratoga Investama Sedaya and K3 Ventures; funds were intended for expansion, digital systems, and mechanization.

## Links

- Website: https://www.rekosistem.com/
- LinkedIn: https://www.linkedin.com/in/ernest-christian-layman-aa3204100/
- Instagram: https://www.instagram.com/ernestlayman/

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Profile page: https://yespress.io/ernest-layman
Published by YesPress — https://yespress.io
Last updated: 2026-10-11