SIG Internship and Interview Process 2027: Online Assessment, Rounds and How to Prepare

Susquehanna International Group (SIG) hires quantitative traders through an online assessment, a recruiter call, interviews with traders and a final round at the office, and every trading candidate starts with the online assessment. This guide covers each stage of the interview process and how to prepare for it.

• Online assessment
  It is a test of quantitative and problem-solving skills. Candidates report 17 questions in 60 minutes, mostly probability and brain teasers, and the instructions allow a calculator, pen and paper. It moved from Mettl to HackerRank in the summer of 2026, and SIG screens your CV after it.
• Recruiter call
  The first phone interview is with a recruiter or HR, half behavioural and half technical: your CV, why quant and why SIG, plus a few probability, expected-value or brain-teaser questions.
• Trader interviews
  One or two technical interviews with a trader follow, with more in-depth probability. Some US quant trading candidates also get a separate coding test, and New York candidates report a data exercise round.
• Final round
  It is an office interview. In Sydney it is made up of a trader interview, a trade floor visit and an office tour, and a Chicago candidate described a full day of activities and interviews with a heavy emphasis on poker and maths.

In our course
Our SIG lesson in the Company Preparation Course follows these rounds: a practice test in the format of the online assessment, the motivational and probability questions of the recruiter call and trader interviews, and our market making games for the final round. If you get a coding test, our Programming course covers the basics. Below are the practice test and the SIG questions in our question bank:

SIG 2027 quantitative trading internships and graduate roles

For the 2027 cycle, SIG’s own job board listed Quantitative Trader internships in Bala Cynwyd, New York and Chicago, and Quantitative Trading internship and graduate roles in Dublin and London. The four Dublin and London postings all opened on 15 July 2026. SIG’s current openings are listed on our SIG company page.

• Quantitative Trading Internship: Summer 2027 (Dublin and London)
  It is a 10-week internship. In Dublin it runs from late June to late August, and SIG provides accommodation for interns coming from outside Dublin. Applicants should have completed 3 years at university by June 2027, and successful interns are invited to the graduate programme starting September 2027, January 2028 or August 2028.
• Quantitative Trader – Graduate: 2027 (Dublin and London)
  Hires must be available to start the graduate programme in June 2027.
• US Quantitative Trader Internship: Summer 2027
  SIG posted it in Bala Cynwyd first, on 17 April 2026, and the first online assessments went out in late May and early June. New York and Chicago followed on 30 June 2026. All three postings had closed by 12 September 2026. The postings were for students who plan to graduate with at least a bachelor’s degree and start full-time work by August 2028, with an interest in strategic games or competitive activities, and offered visa sponsorship.
• Sydney
  The Graduate Quantitative Trader 2027 role closed on 25 June 2026 and starts around February 2027. The Sydney Quantitative Trader Internship for November 2026 took applications from 30 January to 31 May 2026.

SIG’s Quantitative Systematic Trading roles are a separate track for Master’s and PhD students. In Hong Kong, SIG’s 2027 trader internships were two Quantitative Systematic Trading internships. Both are spent in the US, with full-time placement in Hong Kong for successful interns after graduation.

Discovery programmes for Summer 2028

• New York Discovery Program (Quantitative Trading and Quantitative Strategy Development)
  It consists of assessment-based challenges and interviews that lead directly to Summer 2028 internships. The application deadline is 16 November 2026.
• Dublin Discovery Programme
  It has the same format and route to Summer 2028 internships, and was posted on 30 September 2026. Eligible applicants are first invited to an online maths assessment.
• Hong Kong + Singapore Discovery Program (April 2027)
  It is for students at Hong Kong or Singapore universities who plan to graduate in 2029. Outstanding participants are considered for a US-based internship the following year and full-time placement in Hong Kong after graduation.

SIG’s Discovery Programs give students an early introduction to its internship interview process. A US applicant who took a Discovery Day assessment said in May 2026 that it was entirely probability and expected value.

Overview of the SIG interview process

For a quantitative trading candidate, the process runs in this order. Steps 4 and 6 only apply to some US candidates.

1. Application
   You apply on SIG’s careers site, and every trading applicant goes on to the online assessment.
2. Online assessment
   17 questions in 60 minutes, mostly probability and maths brain teasers, which can arrive within days of applying and give you only a few days to complete. SIG screens your CV after the test.
3. Recruiter call
   A phone call with a recruiter or HR, for most within a week of the test. Half of it is about you (your CV, why quant, why SIG) and half is a few probability, expected-value or brain-teaser questions.
4. Coding test (some US candidates)
   A separate online coding test, usually after the recruiter call. Not every candidate gets one.
5. Trader interviews
   One or two technical interviews with a trader, by phone or video, with more in-depth probability than the recruiter call.
6. Data exercise (New York)
   New York candidates have had a round where they build a trading strategy from a dataset and defend it to several traders.
7. Final round
   An interview day at the office. In Sydney it is a trader interview, a trade floor visit and an office tour; a Chicago candidate described a full day of activities and interviews with a heavy emphasis on poker and maths.
8. Offer

SIG’s Sydney postings list the same stages (application, online assessment, behavioural and technical phone interviews, office interview, offer), and Dublin candidates describe the same start: the 17-question test, then a recruiter interview split between motivation and brain teasers.

Stage 1: the SIG online assessment

The first test is an online assessment of quantitative and problem-solving skills.

• Length
  The test has 17 questions in 60 minutes, set out as 17 sections of one question each. Quant trading intern candidates in North America and Dublin, quant research candidates and graduate applicants all describe the same test, in both the 2026 and 2027 cycles.
• Calculator, pen and paper
  The test instructions allow all three, as a candidate quoted them in October 2026. You can move freely between the questions, which roughly increase in difficulty.
• Content
  The questions are mostly probability and statistics plus maths brain teasers, nothing too advanced, and harder than the sample questions in the invitation email. Conditional probability and Bayes come up, and no finance knowledge is needed.
• Difficulty
  Candidates say only the last few questions are hard. A candidate with a strong maths-competition background compared most of them (June 2026) to the probability problems of the AMC 10 and AMC 12, the multiple-choice maths competitions for US high-school students, and the last few to the easiest problems of the AIME, the harder follow-up exam that only top AMC scorers are invited to.
• Platform
  The test ran on Mettl until the summer of 2026 and had moved to HackerRank by mid-August, where candidates say it is the same test. HackerRank is often used for coding tests, but here it hosts this probability test: the coding test some US candidates get later is a separate test (see Stage 2).
• Invitation timing
  The first invitations went out in late May 2026 and most of the first wave in early June. A second wave followed in August 2026, including Dublin applicants, and invitations were still arriving in October 2026.
• Deadline
  You get only a few days to complete the test. Candidates invited in early June 2026 had a week at most, and an internship applicant invited in August 2026 had 3 days.

The invitation calls it the Problem Solving Assessment, and candidates also call it the Susquehanna quantitative assessment or the SIG Quant Assessment.

In our course
The SIG Round 1 lesson in our Company Preparation Course includes our SIG Problem Solving Assessment in this format, 17 questions in 60 minutes.

Other SIG assessments: Equity Research and Capital Markets

The trader test ran on Mettl until the summer of 2026, but a SIG “Mettl assessment” can also mean the Equity Research test, and a “capital markets assessment” belongs to a different track altogether:

• Equity Research
  SIG’s Equity Research internships in Dublin and London start with an online Quantitative & Finance Assessment run by Mercer | Mettl, followed by a recruiter interview, an interview and a final round.
• Capital Markets
  At SIG, Capital Markets is the research and sales side (Sell Side Research, Derivatives Sales and ETF Sales), with its own US Discovery Program. It is a separate track from quantitative trading.

Stage 2: recruiter call and trader interviews

After the online assessment come phone interviews, both behavioural and technical. Candidates in both the 2026 and 2027 cycles describe the first one as a call with a recruiter or HR, half behavioural and half technical: your background and CV, why quant and why SIG, plus a few probability, expected-value or brain-teaser questions whose follow-ups can get tricky.

• Pen and paper
  A North American candidate was asked to have them ready for the call (June 2026).
• Ask when something sounds off
  The questions are read out to you, and one candidate said the interviewer misread some of them (June 2026).
• Timing
  Candidates who moved on usually got the phone-interview invitation within a week of the online assessment, some within a day. Others heard nothing for two weeks or more.
• Trader interviews
  Candidates describe one or two technical interviews with traders after the recruiter call, by phone or video, with standard probability questions in every one.
• Coding test (some US candidates)
  Some US quant trading intern candidates get a separate online coding test, usually after the recruiter call and before the trader interviews, sometimes before the recruiter call. It has run on CodeSignal, and in New York it was a C++ or Python test.
• Data exercise (New York)
  New York candidates have had a round before the final round where they build a trading strategy from a dataset, then defend the strategy and their analysis of the data to several traders.

In our course
The SIG recruiter call and trader interviews lesson in our Company Preparation Course covers the motivational questions of the recruiter call and the probability questions of the recruiter call and the trader interviews.

Stage 3: the office interview (superday)

The final stage on SIG’s Sydney postings is an office interview made up of a trader interview, a trade floor visit and an office tour, followed by the offer. A Chicago Quantitative Trader candidate (review posted September 2026) described the onsite as a full day of activities and interviews, with a heavy emphasis on competitive poker and maths.

SIG uses puzzles to emulate the trading environment and to show candidates what working there is like. New traders learn probability, odds and expectancy through strategic games with senior traders, poker teaches decision-making under uncertainty, and the card game Wizard introduces candidates to gaming at Susquehanna.

In our course
The SIG final round lesson in our Company Preparation Course covers the trader interview and the games, and includes our Cards Game.

How to prepare for SIG

Probability runs through every stage, from the online assessment to the final round, so start there.

• Online assessment
  The test has 17 questions in 60 minutes, mostly probability and statistics plus maths brain teasers, with only the last few hard. Conditional probability and Bayes are the place to start. Our SIG Problem Solving Assessment has the same 17 questions in 60 minutes, and our question bank has probability and statistics questions to work through first.
• Start before you apply
  The online assessment can arrive soon after you apply and gives only a few days to complete it, so practise before you send the application.
• Probability and expected value in the interviews
  The recruiter call and the trader interviews ask probability, expected-value and brain-teaser questions whose follow-ups can get tricky. Work through the questions tagged SIG in our question bank, and our Probability and Statistics Theory and Brain Teasers courses build the methods behind them.
• Games and betting
  A Chicago candidate described the final round as a full day with a heavy emphasis on poker and maths, and SIG teaches probability, odds and expectancy through strategic games. Practise quick betting decisions with our Probability Betting Game and Next Card Betting, market taking with our Cards Game from the SIG final round lesson, and find more in all our market making games.
• Coding (some US candidates)
  A coding test, in C++ or Python in New York, only comes for some US candidates, so refresh the language you would use before the recruiter call. Our Programming course covers the basics.
• Motivation
  The recruiter call asks about your CV, why quant and why SIG. Our SIG recruiter call and trader interviews lesson covers these questions.

For everything in one place:

• SIG practice hub
  Our SIG practice hub puts our SIG practice test and the training we recommend for SIG on one page.
• SIG lesson
  For every round and a practice test for the online assessment, see the SIG lesson in our Company Preparation Course.

What changed this cycle

• US recruiting started in spring
  SIG’s US Summer 2027 quant trading internship was taking applications in late April 2026, and the first online assessments went out in late May and early June 2026.
• New test platform
  The online assessment moved from Mettl to HackerRank between mid-July and mid-August 2026, with the same 17 questions in 60 minutes.
• US internships closed early
  All three US postings, in Bala Cynwyd, New York and Chicago, had closed by 12 September 2026.
• Summer 2028 recruiting starts in autumn 2026
  The New York Discovery Program, which leads to Summer 2028 internships, has a 16 November 2026 deadline.

FAQ

When does SIG recruit for 2027?

It depends on the region:

• US
  SIG posted the Summer 2027 quant trading internship in Bala Cynwyd first, on 17 April 2026. New York and Chicago followed on 30 June 2026. All three postings had closed by 12 September 2026.
• Dublin and London
  The internship and graduate roles opened on 15 July 2026, and SIG hires on a rolling basis.
• Sydney
  The Graduate Quantitative Trader 2027 role closed on 25 June 2026, and the November 2026 internship took applications from 30 January to 31 May 2026.

Do I need a finance background for SIG?

No. Senior traders teach you the trading.

What is the SIG interview process?

For quantitative trading, it is an online assessment of 17 questions in 60 minutes, a CV screen, a recruiter call, one or two technical interviews with a trader and a final round at the office, followed by the offer. Some US candidates also get a coding test after the recruiter call, and New York candidates have had a data exercise round before the final round.

How long is the SIG online assessment?

60 minutes for 17 questions, according to candidates for quant trading, quant research and graduate roles. The instructions allow a calculator, pen and paper.

Is the SIG online assessment on Mettl?

Not anymore. The test ran on Mettl until the summer of 2026 and had moved to HackerRank by mid-August, with the same questions. SIG’s Equity Research internships use Mercer | Mettl for their own Quantitative & Finance Assessment.

Is the SIG OA automatic?

Yes. In the 2027 cycle, candidates said the test is sent automatically after you apply, and SIG screens your CV only after it. Early US applicants waited longer: those who applied in April 2026 got their tests from late May, most in early June.

Is the SIG capital markets assessment the same as the trader test?

No. At SIG, Capital Markets is the research and sales side (Sell Side Research, Derivatives Sales and ETF Sales), a separate track from quantitative trading. Trading candidates take the 17-question online assessment.

We are not affiliated with Susquehanna International Group. This guide is based on SIG’s own postings and candidate reports. Processes can differ by office and role.