Oscar Associates  Limited

Oscar Associates Limited

South East London, North West

Integration Engineer

Full-Time£55,000 - 55,000 per yeargesternUnited Kingdom
IT

Job Description

Salary: £55,000 - 55,000 per year

Requirements:
  • Experience developing with C# and .NET
  • Knowledge of REST APIs, JSON/XML, and SQL
  • Strong analytical and troubleshooting skills
  • Excellent communication skills and a collaborative mindset
  • Experience with Azure or enterprise integrations would be a bonus
  • 5 years in software engineering or systems integration
  • Strong distributed systems and troubleshooting experience
  • Experience in real-time or high-throughput environments
  • Strong SQL and backend or scripting skills, including C#, Python, Java, or C++
  • Customer-facing delivery experience
  • Capital markets experience is a bonus
Responsibilities:
  • Design and deliver smart, scalable integrations that connect business-critical systems
  • Develop robust integrations, automate business processes, and solve complex technical challenges
  • Work closely with customers and internal teams to understand requirements and design effective solutions
  • See projects through from concept to delivery
  • Configure platform components and integrate client systems
  • Translate business requirements into scalable technical solutions using C#, .NET, SQL, and APIs
  • Work directly with traders, quants, IT, and business stakeholders to shape solutions
  • Own delivery end-to-end and ensure quality, timelines, and requirements are met
  • Help evolve integration patterns and extend functionality where needed
Technologies:
  • Azure
  • Backend
  • C#
  • Support
  • JSON
  • Java
  • Python
  • REST
  • SQL
  • XML
  • ASP.NET
  • Cloud

More:

We are hiring a .NET Integration Engineer to join our growing team and help design and deliver solutions that connect business-critical systems. We work with modern Microsoft technologies and support exciting, high-impact projects where technical expertise and customer impact go hand in hand. In this role, you will collaborate with talented colleagues and customers, with opportunities for learning, development, and career progression. We are focused on ownership, solution design, and client delivery across complex distributed systems, including environments involving traders, quants, IT, and business stakeholders.

last updated 31 week of 2026

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  • An updated resume highlighting relevant experience
  • A compelling cover letter (if required)
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About Oscar Associates Limited

Oscar Associates  Limited

Oscar Associates Limited

South East London

IT

Skills & Technologies

PythonJavaC#C++GoScalaASP.NETAzureRESTUI

Inferred from job description

Salary Insight

£55,000

This role

£60,000

UK median

This salary is 8% below the UK median for Software Engineers60,000/yr).

Based on 2024–2025 UK technology sector benchmarks

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