Interview Guides

Susquehanna International Group (SIG) Interview Guide

Last updated: Sep 21st, 2025
12 min read
TradeIQ Team

Master the Susquehanna International Group interview process with our comprehensive guide covering online assessments, technical interviews, probability questions, and insider strategies from successful candidates.

Introduction

Susquehanna International Group (SIG) stands as one of the most prestigious proprietary trading firms globally, known for its rigorous interview process and exceptional talent pool. Their multi-stage interview system is meticulously designed to identify candidates who not only possess sharp analytical skills but also fit perfectly within SIG's unique collaborative and competitive culture.

The SIG interview journey evaluates candidates across four distinct phases, each targeting different aspects of your capabilities. From quantitative assessments to probability-based challenges and cultural fit evaluations, this comprehensive process ensures that only the most qualified individuals join their elite trading teams.

Stage 1: Online Assessment
20-60 minutes

Quantitative evaluation and problem-solving assessment

Stage 2: Phone Interview
30-45 minutes

Background evaluation and cultural fit assessment

Stage 3: Technical Interview
60 minutes

Probability-based questions and technical discussions

Stage 4: Final Super Day
4-6 hours

Multiple technical and HR interviews

Key Insight: SIG's interview process emphasizes both technical excellence and cultural alignment. They seek candidates who can thrive in their fast-paced, intellectually demanding environment while contributing to their collaborative meritocracy.

Stage 1: Online Assessment

The first hurdle in your SIG journey is their comprehensive online assessment, administered through Mettl's platform. This stage serves as a crucial filter, testing your quantitative abilities and logical reasoning under time pressure.

Assessment Types:

Trading Internship: SIG Quantitative Evaluation

  • Duration: 20 minutes
  • Format: Logic-based and brain-teaser questions
  • Content: Linear systems, expected values, grid path-finding

Full-time Roles: SIG Problem Solving Assessment

  • Duration: 60 minutes
  • Format: 17 open-ended questions
  • Content: Complex problem-solving scenarios

Preparation Strategy:

  • Practice mental arithmetic and quick calculations daily
  • Work on sequence recognition and pattern identification
  • Focus on speed and accuracy rather than complex calculations
  • Practice under time pressure to simulate real conditions

Stage 2: Phone Interview

Successful candidates advance to a phone interview with SIG recruiters, focusing on cultural fit, motivation, and basic technical competency. This stage evaluates whether you align with SIG's values and possess the foundational knowledge for trading.

Motivational Focus

Why SIG?

Be prepared to explain your specific interest in SIG's culture and trading approach

Key Points: Mention SIG's emphasis on game theory, collaborative culture, and innovative trading strategies

Technical Assessment

Probability Questions

Basic probability, combinatorial analysis, conditional probability

Approach: Think methodically, explain your reasoning clearly, and don't rush through calculations

Interview Topics:

Background & Experience

  • • Walk through your resume
  • • Relevant experiences for trading
  • • Academic achievements
  • • Problem-solving examples

Market Awareness

  • • Current market trends
  • • Trading concepts understanding
  • • News sources and updates
  • • Financial market interest

Stage 3: Technical Interview

The technical interview is typically conducted via video call with a senior trader and focuses heavily on probability-based mathematics. This 60-minute session tests your analytical thinking, problem-solving approach, and ability to communicate complex concepts clearly.

Interview Format:

  • Duration: 60 minutes with senior trader
  • Focus: Probability questions, brainteasers, and technical discussions
  • Format: Video interview with real-time problem solving
  • Evaluation: Mathematical accuracy, reasoning process, and communication skills
Probability Theory

Conditional Probability

Bayes' theorem, dependent events, probability trees

Key Areas: Combinatorial analysis, expected values, probability distributions

Brainteasers

Logic Puzzles

Grid problems, optimization challenges, strategic thinking

Approach: Break down complex problems into manageable steps

Technical Discussion

CV & Background

Deep dive into your experience and skills

Focus: Relevant experiences, analytical skills, trading interest

Stage 4: Final Super Day

The final stage consists of multiple interviews spanning 4-6 hours, combining intense technical challenges with comprehensive cultural fit evaluations. This marathon session determines whether you'll join SIG's elite trading team.

Technical Stage

Expected Value Games

This hour-long session focuses on market-making games using cards, dice, and coins. You'll calculate expected values and solve probability-based brainteasers under pressure.

Calculate expected value of randomly selecting and rolling dice
Solve card-based market-making scenarios
Handle probability questions with coins and random events

Success Strategies:

  • Stay Calm: Maintain composure under pressure
  • Communicate Clearly: Explain your thought process step-by-step
  • Work Methodically: Break complex problems into smaller steps
  • Show Confidence: Display relaxed confidence without arrogance

HR Stage

Cultural Fit Assessment

This 30-minute session evaluates your alignment with SIG's unique culture, focusing on teamwork, competitive spirit, and growth mindset.

"Why trading?" and "Why SIG?"
"What are your weaknesses?"
"What would be your edge compared to other traders?"

SIG Culture Highlights:

  • Game Theory: Strategic thinking and competitive gaming
  • Poker Connection: 3 WSOP bracelet winners on staff
  • Collaborative Meritocracy: Teamwork and collective problem-solving
  • Growth Mindset: Continuous learning and development

Closing Remarks

The SIG interview process represents one of the most rigorous and comprehensive evaluations in the trading industry. Success requires months of dedicated preparation, covering everything from quantitative skills to cultural alignment. Remember that SIG seeks not just intelligent candidates, but those who can thrive in their unique collaborative and competitive environment.

Final Preparation Tips:

  • Start Early: Begin preparation months in advance
  • Practice Consistently: Daily practice with probability and brainteaser questions
  • Research Thoroughly: Understand SIG's culture, history, and trading approach
  • Stay Humble: Show confidence without arrogance
  • Be Authentic: Genuine interest in trading and SIG's culture
Ready to Excel at SIG?

Master the SIG interview process with our comprehensive preparation tools, probability questions, and market-making games designed specifically for SIG candidates.