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@c9tec.com
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Guillaume Herrmann is listed as Director Of Engineering at Symphony, based in New York, New York, United States. AeroLeads shows a work email signal at c9tec.com, phone signal with area code 917, 866, and a matched LinkedIn profile for Guillaume Herrmann.
Guillaume Herrmann previously worked as System Architect at Cloud9 Technologies, Llc and VP (Equity Derivatives) at J.P. Morgan. Guillaume Herrmann holds Bs, Computer Engineering from Binghamton University.
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AeroLeads found 1 current-domain work email signal for Guillaume Herrmann. Compare company email patterns before reaching out.
Guillaume Herrmann is a Director Of Engineering at Symphony. He possess expertise in derivatives, software development, java, trading systems, sybase products and 3 more skills. Colleagues describe him as "I have had the privilege of working closely with Guillaume since he joined Cloud9 Technologies in late 2017. When he arrived, our critical voice trading system was hosted on a single AWS region, relying primarily on PHP and SQL databases. Despite being innovative, this architecture faced scalability and resiliency limitations. Guillaume was brought on as a Software and Systems Architect to redesign our platform without disrupting customers. He spearheaded an ambitious re-architecture initiative, developing a highly scalable, global system leveraging modern cloud technologies. Guillaume's exceptional architectural vision incorporated Java, microservices, containerization, serverless functions, robust caching systems, NoSQL databases, and more. Demonstrating outstanding leadership, Guillaume assembled and managed a world-class global engineering team to execute his transformative design. He took a hands-on approach throughout the process, from architecting the solution to implementation, deployment, and supporting complex issues. Guillaume's commitment to this critical project was unparalleled. Today, thanks to Guillaume's contributions, Cloud9's voice trading platform operates reliably across four global regions without a single critical incident impacting this mission-critical system. This remarkable uptime is a testament to the resilience and sophistication of the architecture he designed. What makes Guillaume truly exceptional is his pride in his work and genuine care for the company and its people. He is passionate about building highly innovative, robust systems while fostering a collaborative, supportive team environment. It has been a privilege to partner with such a talented and dedicated professional like Guillaume.", "Guilluame is an efficient, dedicated, knowledgeable worker who is always up to the task of getting the job done. He is always researching new ways on how to improve the code base and sharing his ideas. Having him on your team excels the development of other team members.", and "Guillaume is one of the most talented developers I have had work for me. His ability to quickly pick things up and solve problems made him an invaluable resource. I manage a team that had an unexpected departure and I moved Guillaume onto the team to fill the gap. Not only did I not see a drop off in productivity, but within a very short period of time, Guillaume established himself as a leader within the team and was a major factor in delivering the software ahead of schedule."
Listed skills include Derivatives, Software Development, Java, Trading Systems, and 4 others.
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A career timeline built from the work history available for this profile.
New York, US
(Joined Symphony as part of acquisition of Cloud 9 Technologies, LLC in 2021).- Current hands-on architect and technical manager for a geographically distributed team of 8 people developing solutions for the financial industry that uses turret voice trading based technology (for example commodities trading).- Architected, developed and tested event based.
- Re-developed MVP solution to full fledge event based micro services platform running on containers utilizing AWS.- Migrated MVP solution to Java from PHP.- Decomposed monolithic solution into business domain micro services.- Migrated MVP solution from EC2 compute to containers on EKS.- Migrated trading storage from single MySQL database to Data Lake.
New York, NY, US
- Lead developer for low latency post trade risk valuation and risk limit enforcement platform for the institutional trading flow. The platform evaluates risk on client positions with an average of 30 million position updates daily resulting from trading and market data fluctuations. The platform was designed to maintain a one second end to end service.
New York, NY, US
Front office Java developer focused on equity derivatives volatility applicationTechnologies: core java, concurrency package, oracle 11g, Google procotcol buffers, ICE, solace messaging, Bloomberg Data License, Bloomberg Per Security.
Paris, FR
Java developer in Post-Trade routing and management group.- Developed and tested large throughput, low latency system to route trade executions, trade settlements and book keeping entries from Front office to Broadridge's back office clearing systems.Technologies: Hibernate, Spring, SQL server, H2, JUnit, DBUnit, Velocity, AOP, Dozer Bean to Bean mapper.
Burlington, MA, US
Senior developer on Ordered Management System (OMS) and Execution Management System (EMS) specialized on REPOs.- Developed and tested order creation screen for bilateral, fixed or variable rate REPOs. Integrated the capability to trade REPOs in the Charles River's IMS workflows. - Developed and tested visual collateral dashboard to allow portfolio managers.
US
(Boston, MA)- Developed and tested buy side real time FOREX spot trading platform aimed at aggregating liquidity and pricing on currency pairs from several trading networks. Trading platform supported market and limit orders.- Developed and tested market data Level 1 and Level 2 feeds from Reuters, ICAP EBS, DB FX and Hotspot to time series database for.
Paris, FR
(New York City, NY & Jersey City, NJ)Architect / Lead Developer for a hedge fund referential and risk application for loan derivatives using.NET 1.1 and.NET 2.0 technologies.- Developed main deal risk calculation module of the application taking into account due diligence from Risk Team and market value of counterparty’s positions.- Interact with trading.
Armonk, New York, NY, US
(Endicott, NY)Software Developer in Java (J2EE) and Perl.- Promoted to technical lead assisting the project architect in designing and developing application.- Gathered business requirements from customer team.- Conducted use case design and code reviews.- Designed and developed Java framework for batch job processing environment as part of Government.
(New York City, NY)IT Consultant assigned to Chase Manhattan Bank, N.A.System installations and troubleshooting hardware, software and network.
Villejuif, Île-de-France, FR
(New York City, NY)End user support and installation of NT 4.0 Workstations on laptops.
Other employees you can reach at symphony.com. View company contacts →
Michael Grob
Colleague at Symphony
New York, New York, United States, United States
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GB
Graham Barnes
Colleague at Symphony
New York City Metropolitan Area, United States
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MP
Michał Przybył
Colleague at Symphony
Nice, Provence-Alpes-Côte d'Azur, France, France
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SS
Sergio San Miguel
Colleague at Symphony
Saint-Laurent-du-Var, Provence-Alpes-Côte d'Azur, France, France
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LL
Liseth López
Colleague at Symphony
United Kingdom, United Kingdom
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CZ
Cédric Zimmermann
Colleague at Symphony
Grasse, Provence-Alpes-Côte d'Azur, France, France
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OS
Olha Sverdel
Colleague at Symphony
New York City Metropolitan Area, United States, United States
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CG
Catalin Ghimici
Colleague at Symphony
Romania, Romania
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WY
William Yap
Colleague at Symphony
New York, New York, United States, United States
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CL
Christopher Lyons
Colleague at Symphony
Samphanthawong District, Bangkok City, Thailand, Thailand
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Quick answers generated from the profile data available on this page.
Guillaume Herrmann works for Symphony.
Guillaume Herrmann is listed as Director Of Engineering at Symphony.
AeroLeads has found 1 work email signal at @c9tec.com for Guillaume Herrmann at Symphony.
AeroLeads has found 2 phone signal(s) with area code 917, 866 for Guillaume Herrmann at Symphony.
Guillaume Herrmann is based in New York, New York, United States while working with Symphony.
Guillaume Herrmann has worked for Symphony, Cloud9 Technologies, Llc, J.P. Morgan, Barclays Investment Bank, and Société Générale.
Guillaume Herrmann's colleagues at Symphony include Michael Grob, Graham Barnes, Michał Przybył, Sergio San Miguel, and Liseth López.
You can use AeroLeads to view verified contact signals for Guillaume Herrmann at Symphony, including work email, phone, and LinkedIn data when available.
Guillaume Herrmann holds Bs, Computer Engineering from Binghamton University.
Guillaume Herrmann is listed with skills including Derivatives, Software Development, Java, Trading Systems, Sybase Products, Sql, Market Data, and Bloomberg.
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