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We drive the transformation of the financial markets. That’s why we invest in bright minds, in their ideas, knowledge and development. We do that by combining our best sides.


If you would like to find out why stability makes us so agile, why experience makes us so curious and why empathy makes us so impactful, apply now for the position of



 Tech Lead / Senior Software Engineer

Zurich, Hardturm | 80-100 % | Reference 3199



Within the Swiss exchange, Index IT is responsible for calculating all our indices such as "SMI" with high precision. We are an international team with more than 10 nationalities and are expanding to become a global index provider. Our index platform is of great importance to SIX as it is tightly coupled with the exchange: neither can run without the other.


As an experienced “Tech Lead / Senior Software Engineer”, you will be at the heart of an internal and external team of professionals by leading projects, making architectural decisions with performance, consistency, scalability and availability requirements. Moreover, you will be supporting business-critical production systems and developing software as a versatile Senior Software Engineer. 



What You Will Do

  • lead projects with internal, vendor and near/off-shoring developers
  • code highly available, fault-tolerant, precise, exhaustively tested and secure applications
  • design new and ongoing technology projects in areas of scalability, performance, high availability and automation 
  • collaborate with architects, developers, performance engineers and system administrators and investigate production issues and perform root cause analysis 
  • share responsibility with your peer tech lead

What You Bring

  • ​​​​​proven experience of more than ten years with fluency in at least two programming languages
  • recognized experience of at least two years as a Linux application architect and at least five years as a developer in “Java, C#, Python or Scala”, including experience supporting business-critical production systems
  • financial markets/trading experience would be a plus
  • positive, result-driven attitude with high sense for team work and quality as well as some years of practical experience in technical leadership 
  • excellent verbal and written communication in English

If you have any questions, please call Philipp Schuh at +41 58 399 8543.


For this vacancy we only accept direct applications in English.


Diversity is important to us. Therefore, we are looking to receiving applications regardless of any personal background. 

What We Offer

Flexible Work Models
We trust our employees and offer a work environment that is well-balanced, productive and fosters success. 

Personal Development
You will benefit from a culture of continuous learning and feedback. Your personal growth is supported through an extensive learning offering.

Agile Working Methods 
Whether through scrum or design thinking,
we solve exciting tasks together in teams.