Application Guide

How to Apply for Principal Engineer (C# and Java)

at ICAP Energy AS

🏢 About ICAP Energy AS

ICAP Energy AS is part of the TP ICAP Group, the world's largest interdealer broker and the #1 Energy & Commodities broker globally. The company drives sustainable markets with innovative energy and commodities brokering, offering a unique opportunity to work at the intersection of finance, technology, and sustainability.

About This Role

As a Principal Engineer, you will lead the STP (Straight-Through Processing) team, developing and maintaining enterprise-level applications for post-trade affirmation and confirmation workflows, including real-time message processing. Your technical leadership will directly impact the efficiency and reliability of critical market infrastructure.

💡 A Day in the Life

Your day starts with a stand-up meeting with the STP team, discussing progress on post-trade workflows and any production issues. You then dive into coding or code reviews, focusing on high-performance message processing systems. Later, you might mentor a junior engineer on architectural patterns or collaborate with product managers to define technical requirements for new features.

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Interview Prep

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🎯 Who ICAP Energy AS Is Looking For

  • Deep expertise in both C# and Java with 10+ years of experience building high-performance, low-latency enterprise applications.
  • Proven technical leadership experience, having mentored teams and made architectural decisions for complex systems.
  • Strong background in real-time message processing, messaging protocols (e.g., FIX, AMQP), and distributed systems.
  • Domain knowledge in financial post-trade workflows, particularly affirmation/confirmation processes, is highly valued.

📝 Tips for Applying to ICAP Energy AS

1

Highlight specific projects where you architected and led the development of high-throughput, low-latency systems using both C# and Java.

2

Mention any experience with post-trade workflows or financial messaging protocols like FIX, as this is a key requirement.

3

Quantify your impact: e.g., 'Reduced message processing latency by 30%' or 'Led a team of 5 engineers to deliver a new STP system.'

4

Tailor your resume to emphasize technical leadership and decision-making, not just individual contributions.

5

Showcase your ability to work remotely and independently, as this is a fully remote role.

✉️ What to Emphasize in Your Cover Letter

['Your passion for building reliable, real-time financial systems and your understanding of their critical role in market infrastructure.', 'Specific examples of how you have provided technical direction and mentorship to engineering teams.', 'Your familiarity with the energy and commodities sector or your eagerness to learn about sustainable markets.', 'How your experience with C# and Java enables you to bridge legacy and modern systems in a multi-language environment.']

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🔍 Research Before Applying

To stand out, make sure you've researched:

  • → Understand TP ICAP's role as an interdealer broker and how their technology supports OTC trading and data distribution.
  • → Research ICAP Energy AS's focus on sustainable markets and any recent initiatives in green energy trading.
  • → Familiarize yourself with the STP (Straight-Through Processing) concept and its importance in reducing settlement risk.
  • → Look into the company's tech stack and any public talks or articles about their engineering culture.

💬 Prepare for These Interview Topics

Based on this role, you may be asked about:

1 Describe a time you made a technical decision that significantly improved system performance or reliability.
2 How do you approach mentoring junior engineers while managing your own development tasks?
3 Explain your experience with real-time message processing and handling high-throughput data.
4 Discuss a complex distributed system you built and how you ensured data consistency and fault tolerance.
5 What is your understanding of post-trade affirmation and confirmation workflows in financial markets?
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⚠️ Common Mistakes to Avoid

  • Not emphasizing your dual-language proficiency (C# and Java) – many candidates focus on only one.
  • Overlooking the importance of real-time processing experience – generic enterprise experience may not suffice.
  • Failing to demonstrate leadership – this role is not just for senior individual contributors but for technical leaders.

📅 Application Timeline

This position is open until filled. However, we recommend applying as soon as possible as roles at mission-driven organizations tend to fill quickly.

Typical hiring timeline:

1

Application Review

1-2 weeks

2

Initial Screening

Phone call or written assessment

3

Interviews

1-2 rounds, usually virtual

✓

Offer

Congratulations!

Ready to Apply?

Good luck with your application to ICAP Energy AS!

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