Ariel Silahian

Co-Founder

New York, New York, United States12 yrs 11 mos experience
AI Enabled

Key Highlights

  • Expert in electronic trading architecture and low-latency systems.
  • Founder of VisualHFT, transforming market data into insights.
  • Author of industry reference on C++ for financial systems.
Stackforce AI infers this person is a Fintech expert specializing in electronic trading systems and low-latency architecture.

Contact

Skills

Core Skills

Electronic Trading ArchitectureStrategic ArchitectureMicrostructure AnalyticsSystem GovernanceTechnical OversightSubject Matter ExpertiseRisk Management System ModernizationPerformance OptimizationMicroservices ArchitecturePerformance ImprovementElectronic Trading SystemsLow Latency TradingTechnology StrategyProduct DevelopmentTechnical LeadershipMarket ConnectivityElectronic Fx Market MakingSoftware ArchitectureAutomated Trading SoftwareBack Office ProgramsPortfolio Tracking SystemAutomated Trading Platforms

Other Skills

.NET Core.NET FrameworkAdvisory BoardsAgile MethodologiesAlgorithmic tradingArtificial Intelligence (AI)Asset ManagementBig DataC#C++CRDCTOCharles River IMSCorporate AdvisoryCryptocurrency Trading

About

I help financial institutions architect high-frequency trading systems that are fast, stable, and profitable. I have operated on both the Buy Side and Sell Side, spanning traditional asset classes and the fragmented, 24/7 world of Digital Assets. I lead technical teams to optimize low-latency infrastructure and execution quality. I understand the friction between quantitative research and software engineering, and I know how to resolve it. Core Competencies: ▬ Strategic Architecture: Aligning trading platforms with P&L objectives. ▬ Microstructure Analytics: Founder of VisualHFT; expert in L1/L2/LOB data visualization. ▬ System Governance: Establishing "Zero-Failover" protocols and compliant frameworks for regulated environments. I am the author of the industry reference "C++ High Performance for Financial Systems". Today, I advise leadership teams on how to turn their trading technology into a competitive advantage. Key Expertise: ▬ Electronic Trading Architecture (Equities, FX, Derivatives, Crypto) ▬ Low Latency Strategy & C++ Optimization | .NET & C# ultra low latency environments. ▬ Execution Quality & Microstructure Analytics If my profile fits what your team is working on, you can connect through the proper channel.

Experience

Hft advisory

Principal & Strategic Advisor

Nov 2025Present · 4 mos · United States

  • I provide Executive Technical Sovereignty to capital markets leaders. I partner with leadership teams to transform trading infrastructure from a technical cost center into a resilient commercial asset.
  • Architecting Resilience: Designing "Zero-Failover" frameworks for high-frequency environments.
  • Strategic Alignment: Bridging the gap between the Boardroom’s P&L goals and the Engineering team’s technical reality.
  • Turnaround & Optimization: Ruthless optimization of bloated legacy systems to restore latency competitiveness and operational margin.
  • Serving: Investment Banks, Hedge Funds, and Tier-1 Prop Desks.
Expert AdvisorAdvisory BoardsElectronic TradingCryptocurrency TradingDerivativesElectronic Trading Architecture+1

Visualhft

Founder

Nov 2025Present · 4 mos · Miami, Florida, United States · Hybrid

  • Creator of the open-source and commercial standard for microstructure analytics. VisualHFT transforms invisible market data into actionable strategic intelligence.
  • The Asset:
  • Observability: Built the "Bloomberg for Quants"—a real-time L1/L2/LOB diagnostic tool.
  • Standardization: Established the benchmark for .NET high-frequency performance and visualization.
  • Community: Leading a global ecosystem of quants and engineers dedicated to transparent market mechanics.
Electronic Trading SystemsFront Office Trading SystemsHigh Frequency TradingWPFTechnology ManagementQuantitative Analytics+6

T. rowe price

Electronic Trading Engineer

Nov 2023Nov 2025 · 2 yrs · New York / Washington DC-Baltimore Area / Miami · Hybrid

  • Architected critical front-office integrations for the Charles River IMS (OMS/OEMS) environment, directly enabling Best Execution protocols for global trading desks.
  • Strategic Impact:
  • System Governance: Designed the architectural controls for order-management workflows, ensuring regulatory compliance and auditability in a high-volume environment.
  • Risk & Market Access: Engineered automated controls for options assignment and trade validation, reducing operational risk for OTC derivatives.
  • Infrastructure Modernization: Led the delivery of cloud-hybrid trading services (AWS/Containerized) to decouple legacy dependencies and improve deployment velocity.
  • Partnered closely with PMs, researchers, traders, risk, support, and leadership; mentored engineers and contributed to team standards.
  • Scope: Charles River IMS (OMS/OEMS) • CRD with .NET C# • Front-office integrations • Best-execution enablement • Governance & auditability
Electronic Trading SystemsFront Office Trading SystemsCharles River IMSElectronic Trading.NET CoreAlgorithmic trading+9

Packt

Technical Advisor & Author

May 2023Aug 2024 · 1 yr 3 mos · London Area, United Kingdom · Remote

  • Author of "C++ High Performance for Financial Systems", focusing on the architectural patterns required for efficient electronic trading.
  • Leveraged 20+ years of domain expertise to serve as a Subject Matter Expert in High-Frequency Trading and C++ optimization.
  • The Mandate:
  • Subject Matter Expertise: Documented production-grade techniques for low-latency optimization and financial system design.
  • Technical Oversight: Served as a lead technical reviewer, identifying gaps in existing literature and ensuring content aligned with the realities of modern trading infrastructure.
  • Knowledge Transfer: Translated complex proprietary concepts into structured guidance for the developer community, bridging the gap between academic C++ and industrial application.
Advisory BoardsCorporate AdvisoryElectronic Trading SystemsFront Office Trading SystemsTechnology ManagementElectronic Trading+10

Daiwa securities capital markets

Software Engineering Lead

Apr 2022Nov 2023 · 1 yr 7 mos · New York City Metropolitan Area · Hybrid

  • Led the strategic modernization of the firm's core Risk Management System, orchestrating a high-stakes migration from legacy infrastructure to a high-performance .NET Core architecture.
  • Strategic Impact:
  • Global Risk Alignment: Unified risk reporting standards across US and Japan operations, ensuring real-time consistency for front-office decision-making.
  • Performance Optimization: Re-engineered the calculation engine to handle increased market throughput, directly improving the responsiveness for risk managers.
  • Technical Leadership: Defined the SDLC standards for cross-functional teams, bridging the gap between business requirements and technical execution.
Electronic Trading SystemsFront Office Trading SystemsWPFTechnology ManagementWPF DevelopmentFoxpro 2.6+13

Jefferies

Senior Software Engineer

Feb 2021Mar 2022 · 1 yr 1 mo · New York City Metropolitan Area · Hybrid

  • At Jefferies, I contributed to the performance and stability improvements of the microservices architecture supporting the derivatives trading desk’s Order Management System (OMS) and Risk Management System (RMS). By optimizing the system's architecture, I improved microservices performance by 40%, enhancing the handling of positions and holdings and ensuring more efficient trading operations.
  • I implemented architectural changes that increased system resilience, improving stability and monitoring, which were critical for supporting trading execution, position management, and risk control across asset classes like Equities, Fixed Income, FX, and Credit Derivatives. Additionally, I collaborated with a 6-member team to maintain and enhance backend systems, converting legacy code into C++, designing databases, and optimizing server applications.
  • I was responsible for developing financial applications using C++ and C#, ensuring low-latency data communication for Risk Management Systems. The system utilized Winforms and WPF for front-end interfaces, with microservices communicating via MSMQ, and data persistence handled by MSSQL and MySQL databases.
  • Key contributions:
  • Improved microservice performance by 40%, enhancing system stability.
  • Implemented architectural changes to increase resilience and monitoring capabilities.
  • Collaborated in the development and maintenance of low-latency backend services for OMS and RMS.
  • Skills: Front Office Trading Systems, Smart Order Routing, Agile Methodologies, Low Latency, Market Microstructure, C++, C#, MSSQL, MySQL.
Electronic Trading SystemsFront Office Trading SystemsWPFTechnology ManagementWPF DevelopmentFront Office Development+12

Quant developers | high frequency trading solutions

Electronic Trading Technology | Advisor

Apr 2019Feb 2021 · 1 yr 10 mos · New York City Metropolitan Area

  • Led the design, development, and implementation of industry-leading electronic trading systems and low-latency HFT platforms. Managed a global team of developers, quantitative analysts, and risk managers, delivering scalable solutions that increased execution speed and reduced latency. Architected custom order management systems (OMS) that achieved execution latencies of under 5 microseconds, enhancing client profitability.
  • Simultaneously, I provided hands-on development expertise, overseeing technical migrations to C++, C#, and low-latency infrastructure. Key achievements include expanding market access to major exchanges (NYSE, NASDAQ, CME) and enhancing system stability through optimized technology stacks.
  • Notable leadership contributions include mentoring development teams, improving overall market connectivity, and managing client relationships to drive growth. This hybrid role allowed me to blend strategic leadership with deep technical contributions, ensuring a continuous feedback loop between business requirements and technology delivery.
Electronic Trading SystemsFront Office Trading SystemsTechnical LeadershipTechnology ManagementMarket StructureProduct Management+18

Coinsnobs, inc.

Technical co-founder & CTO/Lead Tech

Jan 2018Apr 2019 · 1 yr 3 mos · Global

  • A Patent Pending Film & TV-backed cryptocurrency startup with a deep 6 Bn addressable global market: UI/UX completed | Backend in the process | Alpha launched late Nov. 2017 | Beta to follow in late 2017. www.coinsnobs.com
  • I’ve designed the technology strategy for the entire company and its productization of its features. Also, I’ve worked on the initial MVP which later on we hired a dedicated team to develop it on iOS and Android. I’ve been in charge of designing/coding and maintaining the backend API to allow mobile apps access the data. Backend API was developed using C# and .NET
  • Functions: company-wide strategy definitions, budgeting, managing the development process.
  • Technologies: Web API | C# | .NET | iOS app | Android app | Azure Cloud services | Azure Devops
Electronic Trading SystemsFront Office Trading SystemsTechnical LeadershipTechnology ManagementProduct ManagementExecutive Management+9

Pulsar

US Head/Technical Lead

Apr 2017Jan 2018 · 9 mos · Miami, Florida, United States

  • Pulsar Group is one of the top 10 liquidity providers in the major crypto exchanges, headquartered in Hong Kong, they needed a technical head for their US operations. They are a 100% tech company, operating in the crypto markets and providing 80% of the liquidity.
  • I helped to setup operations in the US, built a small technical team to improve their existing trading platform, an overnight monitoring team and built new relationships with the US-based exchanges.
  • My team and I ended up improving their platforms and their entire performance using data-feed from more than 40 different exchanges, and ended up improving their performance by 35%.
  • Functions: US-country manager, leading the coding efforts, analytics, monitoring the overnight trading operations
  • Technologies: Websockets | Web API | C# | .NET | SQL Server | Microservices Resilience Patterns
Electronic Trading SystemsFront Office Trading SystemsTechnical LeadershipTechnology ManagementProduct ManagementExecutive Management+14

Shefa capital

Lead Developer - Chief Technology Officer

Sep 2014Jan 2017 · 2 yrs 4 mos · Miami/Fort Lauderdale Area

  • Leading a high-performance electronic FX market maker using HFT/ultra-low latency systems.
  • The technology I led traded $1.6 Billion USD per day, across more than 20 different FX pairs.
  • Responsible for all aspects of overall software architecture vision, trading platform development, operation and trading strategies implementation. Assembled and trained a small team of developers that is able to produce highly competitive product under tight time and budget constraints.
  • Designing and developing from “scratch” the low latency applications in order to replace their former system (heavy and slow), using suitable programming languages C/C++ and C#, primarily for Windows/LINUX platform.
  • Multi-threaded development, Algorithmic Trading, Strategy Development and back-testing,
  • FIX protocol (4.2, 4.3 and 4.4) FAST ITCH/OUTCH
  • Improved risk management system, adding different function on the individual models and overall portfolio.
  • Technologies used: C++, STL, Boost, OOP, High-performance Data Structures, Multithreading, Parallel computing, .NET 4.5 and C#, WinForms and WPF / MVVM (display real-time data), ADO.NET and SQL Server, Linq, EF, WCF & Webservices, SOAP, HTTP and Name Pipe communication between applications. Telerik libraries.
Electronic Trading SystemsFront Office Trading SystemsTechnical LeadershipTechnology ManagementProduct ManagementSmart Order Routing+15

Undisclosed cta firm

Lead Quant Developer

Jan 2014Sep 2014 · 8 mos · Miami/Fort Lauderdale Area

  • I helped to design, develop, and assist in their automated trading software (using CQG API) and back office programs.
  • Automated trading: execute buy/sells orders based on different systems (rules), each system will handle different stop loss, targets. Instruments traded Futures (ES s&p, crude oil and bonds). All trades are sent to a back office log for later reconciliation. Orders are sent through CQG API, and also grabbing real-time prices.
  • Back office: automatic reconciliation of all broker statements and trades made. Execution analysis and account allocations.
  • Technologies used: .NET 4.0 C# WPF / MVVM model, entity framework, parallel programming, Multithreading, database MS SQL Server, ADO.NET and SQL Server, Linq, WCF & Webservices. Excel and VBA. DevExpress libraries.
Technical LeadershipSolution ArchitectureTrading StrategiesData StructuresResearch SkillsTrading Software+3

Local wealth management firm

Lead Quant Developer

Nov 2012Jan 2014 · 1 yr 2 mos · Miami/Fort Lauderdale Area

  • Portfolio tracking system, created several reports on this existing system, using Telerik as 3rd party controls. Doing maintenance and adding several functionalities to the system.
  • ● coding strategies and indicators in Metatrader 4 and Ninjatrader (for equities and forex) using C#
  • ● creating trading platforms to execute automated systems with Interactive Brokers, CQG, Etrade and TD Ameritrade. Real-time processing
  • ● Platform to backtest Equity Options strategies (Credit Spread, Butterflies and Iron Condors). I also had to backtest strategies that need dynamic and delta adjustments.
  • ● Software to import trader’s performance from different brokers (Etrade, Interactive Brokers, etc)
  • ● Software to monitor open positions and give the user the ability to open/close new positions, execute automatically some specified systems, etc.
  • Technologies used: VB.NET and C# with .NET 4.0 framework, WPF / MVVM model, ASP.NET MVC, WinForms, WebForms, entity framework, parallel programming, Multithreading, database MS SQL Server, ADO.NET and SQL Server, Linq, WCF & Webservices. Excel and VBA. Real-time data from multiple sources using SOAP and 3rd party APIs (yahoo, google, Interactive Brokers, TD Ameritrade, Etrade, Twitter, Google, etc), Websockets. VBA and Excel.
  • .NET WinForms VB.NET framework 4.5, Telerik and DevExpress, multi-threading, database MS SQL Server, WCF / SOAP, SSRS reports.
Technical LeadershipSolution ArchitectureTrading StrategiesData StructuresResearch SkillsTrading Software+3

North caroline quantitative investment firm

Lead Quant Developer | Consultant

Aug 2012Nov 2012 · 3 mos · Chapel HIll, North Carolina

  • Backtesting tool to test option strategies, based on stocks and options. The software was created to load all the historical option chains, historical stock price, and create different strategies (cannot disclosed the actual strategy). As results, the software gives several values, list of trades, and charts.
  • Technologies used: .NET WPF/MVVC C# framework 4.0, Telerik, multi-threading, real-time data, background workers, parallel processing, database MS SQL Server, Linq, WCF & Webservices, Excel VBA CSV imports.

Ten talents asset management, inc.

Lead Developer

Jun 2011Aug 2012 · 1 yr 2 mos · Miami/Fort Lauderdale Area

  • Developing a project to identify “Unusual Option Activities”, scanning the entire option stocks (from CBOE) looking for unusual volume.
  • The program identifies options, which can be automated using different strategies (mostly basic strategies), generating exit strategies and filling buy/sell orders (using Etrade API)
  • Some features of the project:
  • ● Scans the entire market looking for unusual volume (every hour), analyzing the last prices, volume, open int, theoretical price, and all greeks. (all variables calculated with a library created by me)
  • ● Able to generate risk profile charts, using basic or complex strategies.
  • ● Generates different charts:
  • ○ same options with different expirations and strike price of: volume, open interest, implied volatility, and all greeks (delta, gamma. Etc)
  • ○ Generates charts of Volatility Smile
  • ○ Generate charts of Put/Call ratio
  • ● Interactive Option Chain visualization
  • ● Interaction with APIs of google finance, yahoo finance, Etrade
  • ● Parsers to download information from: MorningStar, iVolatility.com, optionetics, CBOE, Google finance, etc. Downloaded data is stored into MS SQL Server. Information downloaded are:
  • ○ Specific financial data: interest rates, company earning dates, news, tweets, etc
  • ○ Stock quotes, and other data related to the stock
  • ○ Option chain, with latest prices, volume and open interest
  • Technologies used: VB.NET and C# with .NET 4.0 framework, WPF / MVVM model, ASP.NET MVC, WinForms, WebForms, entity framework, parallel programming, Multithreading, database MS SQL Server, ADO.NET and SQL Server, Linq, WCF & Webservices. Excel and VBA. Real-time data from multiple sources using SOAP and 3rd party APIs (yahoo, google, Interactive Brokers, TD Ameritrade, Etrade, Twitter, Google, etc), Websockets. VBA and Excel.

Ecommerce

Sr Technical eCommerce Consultant

Jan 2010Dec 2011 · 1 yr 11 mos · Miami/Fort Lauderdale Area

  • Sr technical consultant working in different positions for renamed local ecommerce companies.
  • Implementation of eCommerce websites, from design to programming.
  • Technologies: .NET, PHP, ASP, Javascript
  • Platforms:
  • Drupal
  • Magento
  • Shopify
  • WooCommerce
  • BigCommerce
  • 3dcart

Sis software factory

Development Manager/ Lead Developer

Aug 2005Dec 2009 · 4 yrs 4 mos · Buenos Aires, Argentina

  • Developing, managing, leading development projects and supporting existing infrastructure.
  • Company that provides software services to IT companies.
  • My mission: manage all projects (thru the project coordinators) and the resources of the company.
  • My goals: keep all projects in budget and finish them with successful. Manage all resource involved in the company.
  • Highlights: I have designed all operational processes and procedures to: contact clients and handle their requirements, product requirements, design, development, testing and maintenance phases. The company has achieved a great performance after these procedures.
  • Project Coordination
  • Advanced Programming with .NET environments (web and desktop)
  • Expert in eCommerce systems
  • C#
  • VB.NET
  • C++
  • .NET
  • ASP.NET
  • PHP
  • Drupal
  • Joomla
  • Projects that I’ve been involved:
  • designed internal web-based tools, intranets, etc. Supporting the marketing department.
  • development of a product, made it with VB.NET in three versions: desktop, web and mobile (using webservices)
  • development and managing client’s needs of company’s services
  • ASP.NET solutions for their internal applications.
  • Product Manager of a live support made it ASP.NET with AJAX
  • development of a Task Manager in C# (winforms)
  • development of a Web Content Management in VB6. Customization and maintenance of an e-Commerce project. (ASP.NET & MS SQL Server)
  • VB6 development: dll’s, Activex, special process, etc.
  • development an application to social assistance. (VB6 – SQL Server 2000).
  • Project Leader. Pocket PC mobile application; made it with Compact Framework C# and SQL Server CE. I had 3 developers and a web designer in my charge.
  • Project Manager. Web Application development; made it with C# and SQL Server 2000. I had 3 developers and a web designer in my charge.

Bank of america

Senior Developer Contract

Jan 2003Jan 2005 · 2 yrs

  • Developing backoffice applications.
  • Migrations from ASP to ASP.NET

Education

Universidad de Belgrano

Computer Science - Software Engineer — Computer Software Engineering

Jan 1998Jan 2003

Instituto Luis A. Huergo

Electronics & Telecommunications

Jan 1987Jan 1993

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