Executive Board Members
Viviane Studler
Chairman
Viviane was born on January 1969 in Probolinggo, East Java.
She has been very active since her youth, organizing various activities in churches, schools and on campus. She is a certified Computer Analyst (as Programmer and System Analyst).
​
She grew up in a catholic family, relocated to Switzerland in 1995, where she integrated very fast.
On 9th November 2002, she gave up her life to Jesus, took Him as her Lord and Saviour, being the most important turning point in her life.
​
From 2004 until 2012, she was employed in the Chinese School in Winterthur, Switzerland. From 2012, until today, she has the privilege of working in the Church Arche Winterthur, earning the trust of the believers at the church ‘Arche Winterthur’, to serve people and God.
​
She was elected as Chairman Perki Swiss for period 2022-2026. She has many hobbies including singing, arranging flowers, cooking and organizing different events. Wherever she is, her heart´s desire is to serve God, to share His Word with others and being a role model through her life and testimonials, especially among the Indonesians living in Switzerland.
Alfonco Sinaga
1st Vice Chairman
Alfonco was the former General Chairman of PERKI Swiss who served for two consecutive periods (2014-2022). Born in Sipangan Bolon, North Sumatra, 1976. He grew up in the house of his grandparents, a priest, until the age of 12 (graduated from elementary school). Since childhood, he has been educated to devout worship and care for others.
As a teenager, he was active in the church's youth. In 2001, he was appointed as Chairperson for Indonesian Youth Pentecostal Church in Jabotabek. Then as Sintua in 2007 for the Indonesian Pentecostal Church (GPI) in Bekasi Kota. That same year, he moved to Switzerland with his family to take up a new job at a multinational energy company.
The Alumni of Electrical Engineering from University of North Sumatra Medan 1999, now serves as the 1st Vice Chairman of Perki Swiss. A person who loves singing and socializing has a vision that one day, the Indonesian people in Switzerland will return to devout worship as they did in Indonesia.
_JPG.jpg)
Christiana Streiff
2nd Vice Chairman
Born in Semarang 1972, Central Java, she grew up in a devout Catholic family. While she was studying at the Christian University of Satya Wacana (UKSW), Salatiga, she was active in organization of Student Senate as Deputy Treasurer and Head of the Fund Section. In addition, she was also active in the Youth Rotary Action, Semarang, as Vice Chairman.
​
In 1997, she went to Sydney, Australia to continue her education and internship in ASEAN Focus Group as a translator (English-Indonesian) of different politics and culture articles from Indonesia. In 1999, she did her Master`s in Communication Management at Bond University, Gold Coast, Australia, where she met her future husband, who also studied there. They are now blessed with two children.
​
She worked for two and a half years in an advertising company in Zürich before being active in various social organizations, such as politics, spiritual and culture in Switzerland. She has many hobbies including gardening, cooking, dancing and hiking. Quite active in several Fellowships since 2002. In 2014, became a member of Katolik Indonesia Swiss Sejati (KISS)-Catholic Indonesian Community.
​
The third period 2022-2026, she was elected as 2nd Vice Chairman and as Diaconia commission. "Serving the Lord Jesus and others wisely" is her guidance to serve HIM and being a witness to many people in Switzerland.
Marlina Simbolon
General Secretary
Marlina was born in Pangkalan Brandan, North Sumatra on 1969 and elected to a Deputy General Secretary Perki Swiss for period 2022-2026. She grew up in Jakarta with her family.
​
After graduating High school in PSKD 1 Jakarta , She moved to Bandung and studied Hotel School in BPLP/ NHI from 1989 - 1992. Just right after graduating, she had an opportunity to work as a Trainee for 18 months in Mövenpick Paradeplatz Zürich.
​
During her time in Zürich, she met her future husband. They married on 1996. God gave them a healthy Son.
Since about the last 13 years, She has been grateful organizing Kloten Christian Fellowship. They are a group of dedicated mothers & wives. Where they share their thoughts according to biblical words.
​
She studied business school from 2009 - 2010 in KLZ Zürich and studied International Wine & Spirit Academy London in Olten on 2015. Wein Culture is one of her Interests. she has been working for a Swiss Wein Company. In her free time she likes to read, to do some sports and to walk in nature.
​
She feels so blessed and thankful to have the opportunity giving Jesus the glory with all Christians in Switzerland and Perki Swiss
Vilona Christy Sembiring
Deputy General Secretary
Vilona was born in september 1987 in Padang, west Sumatera. She grew up in Catholic family with parents who are members of the Church Council. She has been active in church since she was little, being an altar girl and organist. Her hobbies are reading and swimming.
​
In 2005 she went to Australia to finish high school and university. She studied Commercial Law and Marketing. She met her future husband in Sydney, got married in 2012 and moved right away to Switzerland. By the grace of God, they are blessed with a son who was born in 2020.
​
She hopes that by being part of Perki, she can serve others as exemplified by Jesus and help others as God always helps her in any situation.
_JPG.jpg)
Yosie Weiss
General Treasurer
Yosie was born and raised in Makassar, Indonesia. She was raised in a Christian family, and very active in various church activities. She taught at Sunday school and actively served in the youth community at her church in Indonesia.
​
In 1997, after completing her studies in Bandung, West Java, she worked at a 5-stars hotel where she met her future husband. They are now blessed with 3 sons.
​
In Switzerland, Yosie is very active in various organisations. In her church she teaches handycrafts to refugees, and in December 2020 she was elected to the church council of the Reformed Church in her region and became chairperson of the Global Church Department in the same church. She currently works for an IT company in Zurich.
​
Yosie has been a member of Perki since 2014 and serving in the Media Commission for 5 years, until now. For the first time she was elected as General Treasurer of Perki Switzerland. Her hobbies are singing, hiking, handicrafts, gardening and cycling in summer.
She believes that whatever we do, we should do it wholeheartedly, as for God and not for a human master (Colossians 3:23), and whenever the Lord calls us to a task, He will equip us.
_JPG.jpg)
Farry Togas
Deputy General Treasurer
Farry was born in Makassar 1970 and grew up in a Christian family. Being active in Sunday school for teenagers and young people, he had a chance to become the leader of the youth in GPDI (Gereja Pantekosta di Indonesia) - Pentecostal Church in Makassar, South Sulawesi.
​
After graduating from senior high school in Makassar, he continued to study at a Hotel School in Bali. He started his career as a cook in Jakarta, and then moved to Bali, where he worked for 10 years at the Sheraton Bali in Nusa Dua. In 2000, he secured a job at the Mövenpick in Geneva until 2007.
​
In 2007-2009, he worked at Hotel La Reserved, and moved to a Jewish restaurant Ketori where he worked for 10 years. Farry also is very active in the PMNI Fellowship, which he and some friends started in year 2000. With their strength and unity, they serve the Christian community in Geneva and the surrounding areas.
​
Their various activities are monthly fellowship, working at soup kitchens, visiting the sick and needy, serving homeless people and organizing PMNI Christmas event.
In 2010, he joined the Christian Leader Institute for 1 year on a journey of service. From 2015 until now, he enrolled in KCC (Kingdom Community Center) and was elected in 2022 as Deputy General Treasurer of PERKI Swiss and Head of Praise and Worship.