About

Fintech infrastructure: payments, FX, and ledgers, built and explained from first principles.

Sorn Maksumic

Amsterdam, The Netherlands

Engineer with experience at some of the world's leading fintech companies.

Open to select senior/staff/lead engineering opportunities → Email me

Professional Experience

Revolut

Revolut

Software Engineer, Wealth & Trading Team

Jul 2025 — Present

Dubai, United Arab Emirates

Retrieve market data from third parties, transform and store it, distribute it to internal services and in-app, and feed Revolut’s AI Assistant (AIR) via tool calls.

JavaJVMMockitoJUnitSpockGradleGroovyRDBMSPostgreSQLJOOQFlywayRedisGCPCloud SQLMicroservicesKubernetesGrafanaPrometheusNewRelicCQRSKafkaRabbitMQTDDDDDEvent SourcingLLM Integration
Adyen

Adyen ▲ Promoted

Team Lead, Foreign Exchange Team

Aug 2023 — Jul 2025

Amsterdam, The Netherlands

Led a team of 4 engineers building Adyen’s foreign exchange infrastructure: multi-currency bookkeeping, internal FX rates distribution, and hedging against partner bank. Responsible for ~10% of Adyen’s net revenue.

Technical LeadershipProject ManagementMentoringScrumStakeholder ManagementSoftware ArchitectureTrade-off Analysis
Adyen

Adyen

Software Engineer

Aug 2021 — Jul 2023

Amsterdam, The Netherlands

Worked on bank accounting at Adyen: reconciliation and nostro/vostro connections for Adyen’s Balance Platform (banking side).

JavaJVMMockitoJUnitGradleGroovyRDBMSPostgreSQLMyBatisOGNLKafkaRabbitMQEvent SourcingMessage StoreEvent Store

Education

University of South Eastern Norway

Bachelor's degree, Computer Science

2018 — 2021

Kongsberg, Norway

Math Assistant (TAA, paid) for first-year engineering students — Spring 2020

Won Best Bachelor Project 2021

Credentials