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Software Engineer

Wearehaystack — United Kingdom · Posted ~3 hours ago

Mid Full-time

Skills

C# Multithreading Memory management Concurrency Distributed systems High availability Backend development Messaging systems Requirements analysis System modernization Solace Kafka RabbitMQ

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Summary ✨ AI‑Generated

Develop next-generation backend services that replace legacy systems and support strategic business transformation. You will analyze existing architectures, discover requirements, own sub-projects, and build highly available distributed services using C#, concurrency techniques, and messaging technologies such as Solace, Kafka, or RabbitMQ.

Highlights

Backend-focused engineering role involving modernization of critical global services, high-availability distributed systems, messaging, and direct engagement with business stakeholders. Offers ownership of meaningful sub-projects and exposure to strategic transformation initiatives.

Description

We're hiring on behalf of a Haystack partner! The Role • Develop new global services used directly by business users, forming a key part of strategic transformation. • Replace existing C++ services with next-generation technology and modern practices. • Analyze existing systems and conduct requirement discovery for new service delivery. • Gain exposure to linear products and direct business engagement. • Take ownership of sub-projects including permissions management, controls for marking and spreading, and delegation of controls. • Support UI interaction for pricing through a Pricing Service (Backend For Frontend), including bond curve configuration and pricing blotter support. What You'll Need • Mastery of C# including threading, memory management, and concurrency. • Experience with high-availability distributed systems (active-active, hot-hot, zero-downtime). • Messaging experience with systems like Solace, Kafka, or RabbitMQ. • Strong backend development experience with awareness of UI interaction for BFF. • Experience with real-time data/streaming and API design. • Ability to analyze legacy C++ systems and financial domain knowledge (Fixed Income, bond curves, capital markets) is desirable. What's On Offer • Competitive salary • Opportunity to work on a critical strategic project with modern technologies. • Direct engagement with business stakeholders and full ownership of testing and support. • Collaboration within a distributed team environment. Apply via Haystack today!