Lead Application Engineer - Commercial & Origination Portfolio

EPAM Systems (Switzerland) GmbH; Vaud; On-site; CHF 140,000 - 190,000; Full time

Job summary

EPAM Systems (Switzerland) GmbH in Lausanne, Switzerland, seeks a Lead Application Engineer to shape the architecture of commercial and origination applications, blending custom code with SaaS, on-site with the client.

You will act as a senior technical reference, govern architecture choices, and collaborate with Build/Run teams while aligning with business goals. Fluent English and Swiss work context apply.

Qualifications

• 10+ years in application engineering or solution architecture
• Strong background in energy markets and trading applications
• Experience guiding Build and Run activities as technical reference
• Expertise in solution, application and integration architecture
• Practical knowledge of AWS, web services and modern web/backend stacks
• Strong stakeholder management and technical governance in outsourced delivery
• Bachelor’s or Master’s degree in CS, Engineering or related field
• Fluent English, with French or German strongly preferred

Responsibilities

• Act as senior technical reference for the commercial and origination application portfolio
• Define and govern application architecture and technology choices in line with client design principles
• Support Build and Run teams in managing priorities and quality
• Build and maintain relationships with senior client stakeholders across IT and commercial leadership
• Ensure technical governance through design reviews, standards adherence and technical debt management
• Support business cases for portfolio investments with effort, risk and option analysis
• Manage escalations for high-impact incidents and delivery risks within the portfolio

Skills

10+ years exp

Energy markets

Trading apps

AWS

Web services

Governance

Stakeholder mgmt

Education

CS/Engineering degree

Tools

AWS

Job description

We're looking for a Lead Application Engineer - Commercial & Origination Portfolio to join our team in Lausanne, Switzerland, in an on-site working mode. You will support a major European company across more than 10 countries. The project brings the client’s application services under one managed services partner, covering both production operations (Run) and change delivery (Build).

As Lead Application Engineer you will shape the architecture of customer-facing sales, origination and contract pricing applications, built on both custom code and SaaS solutions. You will work closely with agile delivery teams across Switzerland, Spain and India and align technical direction with the client’s commercial goals. The role follows business hours, with extended support around releases, go-lives and market deadlines.

Responsibilities

• Act as senior technical reference for the commercial and origination application portfolio
• Define and govern application architecture and technology choices in line with client design principles
• Support Build and Run teams in managing priorities and quality
• Build and mantain relationships with senior client stakeholders across IT and commercial leadership
• Ensure technical governance through design reviews, standards adherence and technical debt management
• Support business cases for portfolio investments with effort, risk and option analysis
• Manage escalations for high-impact incidents and delivery risks within the portfolio

Requirements

• Extensive experience (10+ years) in application engineering or solution architecture
• Strong background in energy markets and trading applications
• Experience guiding or coordinating Build and Run activities, acting as a technical reference for the team
• Expertise in solution, application and integration architecture
• Practical knowledge of AWS, web services and modern web/backend stacks
• Strong stakeholder management and technical governance skills in an outsourced delivery model
• Bachelor’s or Master’s degree in Computer Science, Engineering or a related field
• Fluent English, with French or German strongly preferred

Nice to have

• Experience with SaaS integration
• Hands-on experience with full-stack JavaScript or Python
• Familiarity with risk and pricing applications