Summer 2026
Global market maker delivering liquidity
No salary listed
Sydney NSW, Australia
In Person
Sydney internship; on-site work required.
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Citadel Securities is a global market maker that provides liquidity and trading services to institutional clients in equities, options, and FICC markets. It uses advanced technology and data analytics to place and manage bid-ask quotes, execute trades, and optimize order routing, earning a small margin on each trade and charging fees for services. Its products and services help clients meet liquidity needs with low-cost, efficient execution. The company distinguishes itself by aiming for the fairest, most transparent, and open markets, continually reinvesting in technology and expertise to improve market efficiency and transparency. The goal is to bridge the financial markets with the real economy by creating reliable liquidity and transparent trading environments.
Company Size
1,001-5,000
Company Stage
Growth Equity (Venture Capital)
Total Funding
$1.2B
Headquarters
Miami, Florida
Founded
2002
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Health Insurance
Life Insurance
401(k) Retirement Plan
Performance Bonus
Morning coffee: when David Solomon really likes you at Goldman Sachs. Dangerous teams in hedge funds. 5 hours ago David Solomon, CEO of Goldman Sachs, doesn't always feel an affinity with individual employees. He seems to have had disagreements on strategy with Jim Esposito, for example, before Esposito left to become president of Citadel Securities. Keep Watching Stock Market Today: Dow Jones Futures Fall, Nasdaq Gains Ahead Of January CPI Print - Tri Pointe Homes, Roku, Expedia Group In Focus Stock Market Today: Dow Jones Futures Fall, Nasdaq Gains Ahead Of January CPI Print - Tri Pointe Homes, Roku, Expedia Group In Focus Solomon did not, however, fall out with Kathy Ruemmler, the woman who grew up in a rural town in Washington State and who became Goldman's chief legal officer and one of his personal advisors. Solomon reportedly hired Ruemmler himself, and she was one of his loyal lieutenants during the rocky start of his reign. Within a year of joining the firm, she was paid $21.5m, which was 75% more than her predecessor earned as general counsel. In 2022, Ruemmler went out to bat for Solomon after Bloomberg reported that Goldman paid $12m to a female partner who'd complained about sexist behaviour at Goldman Sachs. Bloomberg said this included an allegedly vulgar comment made by Solomon himself. "Bloomberg's reporting contains factual errors, and we dispute this story," Ruemmler told CNBC at the time. "- Anyone who works with David knows his respect for women, and his long record of creating an inclusive and supportive environment for women." Now, though, Ruemmler is leaving Goldman Sachs. Like Brad Karp, the now-ex-chairman of elite law firm Paul Weiss, she says her presence in the Epstein files and the resulting media coverage has been a "distracton." "I made the determination that the media attention on me, relating to my prior work as a defence attorney, was becoming a distraction," Ruemmler told the Financial Times. Solomon, however, is standing by his woman. After defending Ruemmler late last year as an "excellent lawyer," whose guidance, he said Goldman relied on "every single day," Solomon said in a statement that Ruemmler "will be missed." - "Throughout her tenure, Kathy has been an extraordinary general counsel, and we are grateinful for her contributions and sound advice on a wide range of consequential legal matters for the firm," he told the FT yesterday. Other Goldman insiders do not seem so supportive. Before Ruemmler "regretfully" handed in her resignation, effective from June 2026, some at the firm were questioning Ruemmler's position at the helm of Goldman's conduct committee, where she was responsible for ensuring employees behaved with integrity. Some Goldman executives previously told Bloomberg they would have been fired for accepting gifts worth a fraction of the worth of those Ruemmler received from Epstein. Ruemmler has always denied that she asked for these gifts, which included a $9.4k Hermès bag, a $4.2k Fendi fur-trimmed plaid wool coat and a $1.7k Fendi bag. Now that Ruemmler's going, Goldman insiders are asking why Solomon stood behind her for so long. "It's a distraction and it's embarrassing," one person close to a Goldman board member told the Financial Times. Former Goldman executives told the FT they felt "deep embarrassment", "crushed" and "profoundly disappointed" by Solomon's ongoing support for her. Last November, the New York Post said Ruemmler sent out a series of emails to Goldman staff urging them to observe that "what and how you communicate reflects on you and the reputation of the firm" and to complete a module on "communications at Goldman Sachs." If Ruemmler had followed her own advice during her communications with Epstein in her pre-Goldman Sachs career, she might still be at Solomon's side beyond June. Separately, commodities traders have a tendency to come and go at hedge funds, which don't always have an appetite for the sector's volatility. For a few years, natural gas traders have been all the rage, but recent extreme fluctuations in natural gas prices are taking their toll. Bloomberg reports that BlueCrest has ejected seven natural gas traders, including senior trader Alex Watson and his team after losses. Commodities revenues can be volatile with natural gas revenues particularly so. Natural gas trading helped drive $4bn of profits for Citadel's commodities arm in 2024. In December 2025, though, Bloomberg blamed Citadel's poor 2025 returns on natural gas trading losses earlier in the year. These were subsequently recovered and the Citadel's business ended the year up. Gas trading is a risky business. Everyone wants the highs, but it remains to be seen whether hedge funds will also tolerate the lows. Meanwhile... Jes Staley, ex-CEO of Barclays, was named as one of three trustees for the Jeffrey E Epstein 2014 Trust in notarised agreements signed and dated by him, including in May 2015. Last year, Staley told a UK court that this was not the case. (Financial Times) Jane Fraser had a 22% pay rise and is now earning $42m as CEO of Citi for 2025. (Bloomberg) CS Venkatakrishnan is only earning £15m ($20m) at Barclays. (Telegraph) NatWest invested £1.2 billion in technology, AI and simplification in 2025. (Bloomberg) UBS expects to hire up to 3,000 people in India. It also expects to cut people in Switzerland. (Yahoo) There's no longer a concierge service for junior lawyers at Kirkland & Ellis. (Financial News) The Association of Financial Markets in Europe said that a blanket reduction of capital requirements for electronic trading firms would be a bad idea. (Bloomberg) Have a confidential story, tip, or comment you'd like to share? Contact: +44 7537 182250 (SMS, Whatsapp or voicemail). Telegram: @SarahButcher. Signal: sarahbutcher.22 Click here to fill in our anonymous form, or email [email protected]. Bear with us if you leave a comment at the bottom of this article: comments are moderated intermittently by human beings. Sometimes these humans might be asleep, or away from their desks, so it may take a while for your comment to appear. You must take sole responsibility for comments you post on this site. We will take reasonable steps to weed out anything that we consider to be offensive or inappropriate. The essential daily roundup of news and analysis read by everyone from senior bankers and traders to new recruits. Boost your career. Find thousands of job opportunities by signing up to eFinancialCareers today. 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Alpaca, api-first platform to embed and automate trading of stocks, options, and crypto via programmable interfaces. Here you'll find information about their funding, investors and team.
Alpaca announces their $150m Series D raise, with plans to scale its global brokerage infrastructure, secure key licenses, and advance institutional trading capabilities.
Citadel Securities taps BNP Paribas for fixed income ETF sales trader. Individual previously spent three years at BlackRock in various senior roles, and has also worked at Citi and Capital Group. Rachel Underhill has joined Citadel Securities as a fixed income ETF sales trader. Underhill is based out of New York and brings extensive industry experience working across ETFs and fixed income to her new role. She joins the firm from BNP Paribas, where she spent eight months working in a position covering G10 macro rates sales in San Francisco. Prior to her time at BNP Paribas, she served at BlackRock for more than three years in various different roles, most recently as head of US ETF markets coverage. Underhill has also held positions as Citi covering fixed income portfolio, credit and high-grade municipals trading. She began her industry career as an associate in fixed income at Capital Group in Los Angeles, which she joined in 2016. Citadel Securities had not responded to a request for comment at the time of publication. Underhill's hire follows the recent appointment of Scott Rubner as Citadel Securities' head of equity and equity derivatives strategy in July. Miami-based Rubner joined the firm following nearly ten years at Goldman Sachs.
Alphacution Press: Hudson River mints billions in the shadow of Jane Street and Citadel Securities. December 2nd, 2025 | Press Alphacution quoted in Bloomberg's December 1, 2025 article ($) by Katherine Doherty on how, apparently, Hudson River Trading is competing with the likes of Jane Street and Citadel Securities by slowing its trading down, among other explorations, such as options trading. "The biggest and the best prop firms, the ones making all the waves and money, are huge in options," said Paul Rowady, founder and director of research at Alphacution. "HRT hasn't traded options to the same scale. They realize the opportunity." See Feed post, "Hudson River Finally Sets a Hook" (Oct 31, 2025) and our case study, "Rise of Hudson River Trading" (Jan 23, 2021)