Senior Real-Time Data Platform Engineer

Morningstar Credit Ratings, LLC; Greater London; Hybrid; GBP 68,200 - 95,333; Full time

Benefits offered by this job

Hybrid work model

Job summary

Morningstar Credit Ratings, LLC is seeking a Senior Software Engineer to design, build, and operate a core data platform delivering real-time market data across the organisation. You will own significant components in a high‑throughput, low‑latency environment and collaborate with product teams to deliver reliable, scalable systems.

You’ll work on event‑driven data processing with Flink and Kafka, develop Java and .NET APIs, and drive observability and cost‑efficient operations while

Qualifications

• Experience with distributed systems and event-driven architectures.
• Hands-on experience with Apache Flink and Kafka.
• Proficiency in .NET or Java.
• Experience building observable, operable systems with strong monitoring and logging.
• Ability to design cost-efficient, scalable cloud services.
• Strong collaboration and communication.

Responsibilities

• Design and build scalable, real‑time data processing systems using Apache Flink and Kafka.
• Develop high‑quality code for Apache Flink (Java) data processing and .NET APIs.
• Lead and contribute to collaborative system design, end‑to‑end ownership from implementation to production support.
• Build production‑grade systems with observability, monitoring, and operational excellence.
• Work with AWS services to build cloud‑native, highly available systems; define and manage infrastructure using Terraform.
• Implement CI/CD pipelines and deployment workflows using Harness.
• Optimize systems for performance, latency, throughput, and cost.

Skills

Distributed systems

Apache Flink

Kafka

Java

.NET

Observability

Monitoring

Cost awareness

Communication

Collaboration

Job description

Morningstar Credit Ratings, LLC is seeking a Senior Software Engineer to design, build, and operate a core data platform delivering real-time market data across the organisation. You will own significant components in a high‑throughput, low‑latency environment and collaborate with product teams to deliver reliable, scalable systems.

You’ll work on event‑driven data processing with Flink and Kafka, develop Java and .NET APIs, and drive observability and cost‑efficient operations while