Integration Engineer

Company: Oscar Associates Limited
Apply for the Integration Engineer
Location: London
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.

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Posted: July 10th, 2026