// industries - financial services

Regulators won't wait while you manually patch 10,000 microservices. Automate compliance.

Regulators demand current, patched, auditable software. Business demands new features to compete with fintechs. Engineering is stuck in the middle, spending most of its time on neither. In 2018, TSB attempted to migrate 5.4 million customer accounts to a new platform over a single weekend. The migration failed catastrophically, locking 1.9 million customers out of online banking for weeks. The independent Slaughter and May review put the total cost at £330 million.1 In 2012, Knight Capital deployed a routine software update that accidentally reactivated a dormant trading algorithm and lost $440 million in 45 minutes before anyone could pull the plug.2

Both incidents trace back to the same root cause: fragile legacy systems where even small changes carry outsized risk.

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10k+
services upgraded in parallel
15x
faster migrations
100%
audit evidence generated
01
Turn regulatory pressure into modernisation momentum
DORA, PSD3, SOX, Basel III. The compliance landscape keeps expanding. Most firms treat each mandate as a painful audit exercise. Bosun flips that: every regulatory deadline becomes a trigger for automated upgrades. Runtimes get patched, vulnerabilities get closed, and the evidence trail regulators expect gets generated as a byproduct. Compliance becomes continuous, not quarterly.
02
Modernise the trading and payments stack safely
Transaction systems demand absolute correctness. A rounding error in a payment engine or a race condition in an order router isn't a bug. It's a financial loss. Bosun validates every migration step against existing behaviour through automated test generation, so core banking and trading platforms can move from legacy frameworks to modern stacks without the TSB-style cutover risk.
03
Scale maintenance across the microservices estate
Large banks run thousands of services. When Log4Shell dropped in December 2021, some institutions spent weeks just inventorying which services were affected. Bosun operates at portfolio scale, applying consistent upgrades across hundreds of repositories simultaneously. Spring Boot version bumps, Node runtime migrations, dependency patches: all handled in parallel.
04
Reclaim engineering capacity
Every hour a developer spends on dependency upgrades is an hour not spent building features. Bosun gives that time back.

1 TSB Independent Review, Slaughter and May, November 2019

2 SEC Administrative Proceedings, October 2013

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See how Bosun can accelerate your legacy modernisation and reduce maintenance burden across your software estate.
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