Nicolas Braschi Lehmann User
@nicolasbraschilehman
I lead SRE teams improving reliability, observability, and incident response for high-volume payment systems.
PolandWhat I'm looking for
Operations manager with over thirteen years of experience in the IT sector in multiple industries. Currently I’m on EMEA SRE Manager position covering Online Payments Environment area for CITI group. Leading teams of operational and technical professionals under follow the sun support model, to provide availability to all core systems, servers and processes that impact Funds Transfer processing.
Experience
Work history, roles, and key accomplishments
SRE Manager
Citi Bank
Sep 2025 - Present (1 year 1 month)
Leading the SRE team for online payments, ensuring reliability and performance of high-volume transaction banking applications. Defined SLOs, SLAs, and error budgets, and improved incident management processes.
Senior SRE Analyst
Citi Bank
Feb 2025 - Sep 2025 (7 months)
Monitored and ensured reliability of critical banking applications using ITRS Geneos, Grafana, and SQL. Developed dashboards and alerts to improve observability and reduce incident detection time.
Application Support Engineer
Bringg on Salesforce
Nov 2023 - Sep 2024 (10 months)
Provided support for a Salesforce-based application, including system integration, process automation, and API troubleshooting. Improved first response time to under 30 minutes and reduced investigation time by up to 20%.
Application Support Engineer
Bringg
Nov 2022 - Nov 2023 (1 year)
Served as 3rd-level support engineer for in-house logistics software, providing training and establishing best practices. Improved customer satisfaction, especially in Spanish-speaking markets.
Application Analyst
iHerb
Jul 2019 - Nov 2022 (3 years 4 months)
Provided 2nd-level support for Warehouse Management System (WMS) and internal logistics, handling data hygiene and payment-related cases. Utilized MS SQL, Kibana, and API troubleshooting.
IT Support Engineer
Nordea Bank Polska
Sep 2018 - Jun 2019 (9 months)
Provided technical support for internal employees across Nordic states, supporting banking processes and software. Handled user administration, software deployment, and VDI.
IT Support
Egnyte Poland Sp. z o.o.
Dec 2017 - Sep 2018 (9 months)
Supported data migration projects and in-house software products, including Cloud File Server and Cloud Sync solutions. Managed Linux infrastructure and VM deployment.
Application Analyst
Zurich Santander Insurance Argentina
Sep 2016 - Sep 2017 (1 year)
Worked on robotic process automation for marketing and accounting using UiPath, reducing man hours and scraping websites for data collection. Coordinated accounting team processes.
IT Support
Hipodromo Argentino de Palermo (Casino)
Mar 2014 - Sep 2016 (2 years 6 months)
Provided IT support for cashier and customer-contact solutions, including server and infrastructure maintenance. Supported IGT Advantage application modules and administered active directory.
Education
Degrees, certifications, and relevant coursework
Smart Aviation
Airline Transport Pilot License, Aviation
2019 -
Pursuing an Airline Transport Pilot License, ongoing since May 2019.
Flight Center – Moron Military Airport Argentina
Private Pilot License, Aviation
2016 - 2017
Completed a Private Pilot License program from 2016 to 2017.
University of Buenos Aires
Unfinished Studies, Electrical Engineering
2012 - 2016
Pursued Electrical Engineering studies, unfinished, from 2012 to 2016.
Tech stack
Software and tools used professionally
Availability
Location
PolandAuthorized to work in
Salary expectations
Social media
Job categories
Skills
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