Full-Time
Senior / Staff AI Model Engineer
Updated on 9/4/2026
Clear Street
501-1,000 employees
Cloud-based prime brokerage with execution, financing
Compensation Overview
$200k - $350k/yr
Remote in USA
Remote
 AI & Machine Learning (1) |
|---|
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- At least Eight (8) years of experience shipping production software; strong proficiency with any programming language
- Strong knowledge of computer science fundamentals, testing methodology, and systems design
- Experience building evaluation frameworks, test harnesses, and benchmark suites for complex systems (LLMs/agents/search/retrieval/ranking/recommenders)
- Experience running model improvement cycles: dataset curation, labeling/QA, offline experimentation, and deploying changes with measurable impact on benchmarks
- Ability to define metrics, build measurement pipelines, and drive engineering/product decisions from data
- Comfort working across the stack: debugging model/tooling failures, instrumenting services, and partnering with frontend/product on UX patterns that improve safety and trust
- High degree of self-motivation and willingness to jump into unfamiliar areas to solve problems
- You will own the reliability and quality bar for an AI copilot embedded in a trading platform used by sophisticated investors
- You will design and build evaluation systems that measure correctness, safety, latency, and regression risk across market analysis, portfolio/risk reasoning, and trading workflows (including order placement)
- You will develop and maintain benchmarks: curated “golden sets,” scenario suites, stress/adversarial cases, and continuously refreshed market/regime-based test corpora
- You will build automated quality gates and regression workflows that block releases when key metrics degrade
- You will partner with engineering and product to define safe tool/action contracts (deterministic previews, confirmations, auditability) and ensure predictable assistant behavior
- You will own model improvement loops tied to evals: data collection/labeling strategies, error taxonomy, prompt/tooling changes, and when appropriate, fine-tuning or preference optimization to measurably improve benchmark performance
- You will design and operate monitoring + incident response for AI: telemetry, alerting, RCA, and “fix-forward” processes
- You will develop a deep understanding of trading concepts (margin, shorting, portfolio margin, risk, execution) and how to express them accurately and understandably to users
- Experience with fine-tuning, preference optimization, distillation, or prompt/compiler-style techniques for improving tool-use reliability
- Experience creating domain-specific benchmarks and adversarial suites (e.g., “known-bad” scenarios) for high-stakes applications
- Deep experience with trading across asset classes, margin types, etc.
- Experience with Rust and performance-sensitive services
- Experience designing incident response and SLOs for ML/AI systems
Clear Street provides prime brokerage and capital markets infrastructure via a cloud-based, API-first platform that supports trading equities and options across major markets, including trade execution, financing, clearing, custody, and securities lending. The product runs in the cloud and exposes APIs for easy integration, delivering a unified solution that streamlines onboarding and settlement and enables cross-market trading. It differentiates itself with a cloud-native, API-first design and a single platform that covers multiple core services with flexible pricing and a strong capital base. Its goal is to modernize and simplify capital markets infrastructure so clients can trade efficiently and access financing and securities lending through an integrated, scalable system.
Company Size
501-1,000
Company Stage
Debt Financing
Total Funding
$1B
Headquarters
New York City, New York
Founded
2018
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Simplify's Take
What believers are saying
- Clear Street added EMEA and APAC execution on August 26, 2026.
- Clear Street raised a $400 million investment-grade bond in 2026, extending runway.
- Leadership promotions and hires in July 2026 tightened sales, markets, and technology execution.
What critics are saying
- Databricks said on July 31, 2026, it has no relationship with Clear Street.
- Clear Street’s shelved 2026 IPO signals fragile public-market confidence and funding optionality.
- Private-markets SPVs and margin lending invite disputes, defaults, and SEC scrutiny quickly.
What makes Clear Street unique
- Clear Street spans clearing, custody, execution, and financing on one cloud ledger.
- On July 31, 2026, Clear Street launched pre-IPO access with Databricks.
- On August 26, 2026, Clear Street extended execution into 27 EMEA and APAC markets.
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Benefits
Company equity
401k matching
Parental leave
Full medical, dental & vision insurance
Lunch stipends
Fully stocked kitchens
Happy hours
Growth & Insights and Company News
6 month growth
↑ 1%1 year growth
↑ 0%2 year growth
↑ 3%Clear Street launches EMEA and APAC execution. August 26, 2026 Clear Street, a cloud-native financial infrastructure technology firm that aims to give sophisticated investors access to every asset in every market, has launched electronic execution across Europe and Asia-Pacific, marking the first time its algorithmic trading offering has extended beyond the US and Canada. The rollout gives clients access to 27 new markets through a single connection, with positions and trades visible in the same real-time ledger that underpins Clear Street's existing US business. Across EMEA, the company now provides execution on primary exchanges in 22 markets, together with access to dark pools, systematic internalisers, periodic auction books and ETF liquidity through RFQ. European emerging markets are supported from launch, while out-of-hours German venues are set to follow. In Asia-Pacific, Clear Street has gone live in Australia, Hong Kong, Japan, New Zealand and Singapore, with South Korea and Taiwan due to be added in the coming months. Both regions offer nine headline trading strategies and integrate directly with major EMS and OMS technologies. Clients are also able to choose from more than 100 configurable execution parameters, with tailored configurations able to be deployed within 24 hours. The international launch is being introduced alongside a 24-hour smart order router, which gives clients overnight access to US equities between 8:00 p.m. and 4:00 a.m. ET. The router directs orders across Blue Ocean, Bruce, MOON and OTC Link N, automatically shifting to whichever venue offers the best available price. Combined, the two launches mean Clear Street's coverage now matches the full span of hours and markets in which its clients trade. Clear Street describes itself as a cloud-native financial infrastructure technology firm built to give sophisticated investors access to every asset in every market. The company says it is replacing outdated industry infrastructure with a single, end-to-end cloud platform that supports the whole trade lifecycle, spanning ideation, execution, clearing, custody, financing and settlement, with the aim of delivering greater speed, transparency and scale across its ecosystem. Clear Street CEO and co-founder Uri Cohen said, "With today's launch, our platform now spans three regions - giving investors institutional-grade execution, smart order routing and a single view of their positions wherever they trade, backed by 24-hour coverage that matches the hours our clients actually work. Launching Europe and Asia-Pacific together is a defining step in building our global platform and we're just getting started." Enjoying the stories? Investors. The following investor(s) were tagged in this article.
Clear Street launches electronic execution in APAC and EMEA. Across Europe Clear Street now executes across primary exchanges in 22 markets, and in Asia Pacific the firm is live across Australia, Hong Kong, Japan, New Zealand and Singapore - South Korea and Taiwan set to follow imminently. Clear Street has launched electronic execution in Europe and Asia Pacific in a move which extends its algorithmic trading offering beyond North America for the first time. Specifically, users can now access 27 markets across EMEA and Asia Pacific via one single connection, as well as viewing positions and trades in the same real-time ledger. Uri Cohen, chief executive and co-founder of Clear Street, said, "With today's launch, its platform now spans three regions giving investors institutional-grade execution, smart order routing and a single view of their positions wherever they trade, backed by 24-hour coverage that matches the hours its clients actually work "Launching Europe and Asia Pacific together is a defining step in building our global platform and we're just getting started." Across Europe the firm now executes across primary exchanges in 22 markets. Following this latest move, European emerging markets are included from launch, with out-of-hours German venues set to follow. Additionally, in Asia Pacific the firm is now live across Australia, Hong Kong, Japan, New Zealand and Singapore - South Korea and Taiwan set to follow in the coming months. BNP Paribas takes strategic stake in OSTTRA. The French bank joins a consortium of global banks investing in the post-trade infrastructure provider. BNP Paribas has made a strategic equity investment in OSTTRA, joining a consortium of global banks backing the post-trade infrastructure provider. The bank joins Bank of America, Barclays, Citi, HSBC, Wells Fargo and UBS Investment Bank, which formed the consortium in February. Funds managed by private equity firm KKR remain OSTTRA's majority owner. Joe Bonnaud, head of global markets EMEA at BNP Paribas, said: "Joining this consortium of leading institutions reflects our commitment to advancing market infrastructure and working collaboratively with OSTTRA to deliver next-generation operational solutions for our clients. OSTTRA's post-trade architecture is central to the resilience and efficiency of global capital markets." Read more - OSTTRA to boost investment management offering with HUB acquisition BNP Paribas' investment adds to the group's involvement in OSTTRA as the company continues to develop its post-trade infrastructure across global financial markets. John Stewart and Guy Rowcliffe, co-CEOs at OSTTRA, said: "Participation further validates our market-leading position and strengthens our collective focus on driving innovation, growth, and efficiency across the global post-trade lifecycle." The investment follows OSTTRA's acquisition of AI-enabled SaaS provider HUB, as the firm looks to expand its investment management offering and post-trade capabilities.
Clear Street partners with STS Digital to expand institutional Digital Asset derivatives offering. Partnership brings institutional-grade spot, options, structured products and digital asset treasury capabilities onto Clear Street's cloud-native platform NEW YORK - August 18, 2026 - Clear Street ("Clear Street" or "the Company"), a cloud-native financial infrastructure technology firm on a mission to give every sophisticated investor access to every asset in every market, today announced a strategic partnership with STS Digital Ltd., a Bermuda Monetary Authority (BMA) regulated principal trading firm specializing in digital asset derivatives, structured products and institutional liquidity, to deliver institutional digital asset trading and treasury capabilities to its global client base. The partnership pairs Clear Street's prime brokerage, clearing and execution infrastructure with STS Digital's regulated principal liquidity and derivatives expertise, giving institutional clients 24/7 access to sophisticated digital asset markets through a single cloud-native platform. Bob Rutherford, Chief Executive Officer of Clear Street Digital, said, "Institutional clients are seeking sophisticated digital asset capabilities delivered through infrastructure they trust. This partnership extends access to institutional-grade derivatives, structured products and liquidity through our cloud-native platform, giving sophisticated investors a single source of truth across the trade lifecycle as digital assets continue to move into the institutional mainstream." Through the partnership, clients gain access to: * Institutional spot trading and OTC liquidity * Vanilla and exotic options across more than 400 digital assets * Bespoke structured products * Digital asset treasury and yield solutions * Tailored hedging and capital-efficient risk transfer STS Digital operates under a Full Class F Digital Asset Business Act License issued by the Bermuda Monetary Authority, combining prudential regulation with institutional-grade governance, deep liquidity and 24/7 global execution across voice, API and electronic channels. Its infrastructure serves hedge funds, asset managers, family offices, banks, corporate treasuries and professional trading firms. Maxime Seiler, Co-Founder and Chief Executive Officer of STS Digital, said, "Institutional investors expect the same quality of infrastructure, governance and risk management across every asset class, whether digital or traditional. Combining Clear Street's platform with STS Digital's leadership in digital asset derivatives creates an offering that reflects where this market is heading over the next decade." About STS Digital: STS Digital Ltd. is a Bermuda Monetary Authority regulated principal trading firm specializing in institutional digital asset derivatives, structured products and liquidity. Operating under a Full Class F Digital Asset Business Act License, STS Digital delivers sophisticated execution across spot, options and structured products for professional investors worldwide. Note: STS Digital Ltd is regulated and supervised by the Bermuda Monetary Authority (BMA). Client acceptance is limited to professional and institutional clients and subject to prior onboarding and satisfactory KYC verification.The content on this account is for general informational purposes only and shall not be construed as financial, investment, legal, tax, or any other professional advice. No representations or warranties are made, and nothing herein creates any contractual obligations, advisory relationship, or liability. About Clear Street: Clear Street's mission is to give every sophisticated investor access to every asset, in every market, through a unified platform built for speed, transparency and scale. Clear Street give its clients the technology, tools and service once reserved for the largest institutions, rebuilt with modern infrastructure. Its single, cloud-native, end-to-end capital markets platform powers investor growth today and transforms how they interact with markets tomorrow. Founded in 2018 and headquartered in New York with offices globally, Clear Street serves active traders, hedge funds, market makers, broker-dealers, ETF issuers and corporates worldwide. For more information, visit www.clearstreet.io. Media Contact: Get in touch with its team. Clear Street does not provide investment, legal, regulatory, tax, or compliance advice. Consult professionals in these fields to address your specific circumstances. These materials are: (i) solely an overview of Clear Street's products and services; (ii) provided for informational purposes only; and (iii) subject to change without notice or obligation to replace any information contained therein. Products and services are offered by Clear Street LLC as a Broker Dealer member FINRA and SIPC and a Futures Commission Merchant registered with the CFTC and member of NFA. Additional information about Clear Street is available on FINRA BrokerCheck, including its Customer Relationship Summary and NFA BASIC | NFA (futures.org). Copyright (C) 2024 Clear Street LLC. All rights reserved. Clear Street and the Shield Logo are Registered Trademarks of Clear Street LLC
Clear Street, a cloud-native financial infrastructure technology firm, has launched Private Markets Equity Research, offering independent research coverage on leading private companies. The service extends the company's existing Private Markets platform, which provides access, execution and liquidity for private company shares. Led by equity analyst Owen Lau, the research team has published its first in-depth report on Databricks. Clients can access the research directly within their Clear Street accounts alongside other private markets tools. Chief executive officer Uri Cohen said the service addresses a gap in pre-IPO investing, where research is often limited or fragmented. The research aims to help institutional investors evaluate opportunities before companies reach public markets.
Clear Street has launched Clear Street Private Markets, a platform offering pre-IPO access to private companies within its ecosystem. The initiative combines liquidity, capital efficiency through Clear Street's credit financing desk, research, and execution in a single platform. The service launches with pre-IPO access to Databricks, the first of several anticipated investment opportunities. The platform will feature private company research led by equity analyst Owen Lau and will be embedded directly in clients' Clear Street accounts. Participation is restricted to qualified purchasers and accredited investors. Clear Street aims to address common pre-IPO investing challenges, including opaque structures and fragmented documentation. CEO Uri Cohen highlighted the platform's margin capabilities, describing them as unique in the market.