Senior Backend Developer - DEM in London

At ITRS, we make society\’s critical technology work. Our mission is to deliver automated and holistic IT observability solutions that safeguard critical applications and enable innovation. We are the only monitoring and observability platform designed for the most demanding and regulated industries — trusted by 90% of Tier 1 capital markets firms.We believe when our team thrives, so do our customers. With us, you\’ll find:A culture that backs you – We\’re proud to be a Great Place to Work for multiple years in a row due to our inclusive, supportive environment.Work that matters – Make a real difference with 1,000s of global customers in industries that keep the world running, including 9 out of 10 top investment banks.Room to grow – Whether you\’re starting your career or bringing years of experience, we\’re committed to your development. Just ask our team members who\’ve been excelling here for 10+ years.With headquarters in London and teams across the US, Europe, and Asia, ITRS combines the agility of a high-impact tech business with the stability of a private equity–backed global partner.Scope of Role We are looking for a Senior Backend Developer with deep C#/.NET expertise (and Java experience preferred) to join our Digital experience monitoring (DEM) and Analytics Platform. Reporting to the Engineering Manager and working within our global engineering organisation, you will help design, build and evolve the Platform: a collection of distributed services that ingest, transform and materialise observability data for use by visualisation, integration, analytics and other domain‐focused applications.This is a hands‐on role suited to a developer who can, integrate multiple platforms end‐to‐end, and collaborate across multiple teams. We are strengthening our core platform in anticipation of wider customer adoption through 2025.We operate a hybrid working model with 2 days in the office and 3 days from home.As Senior Backend Developer, you will: Design, develop, test, document and deploy back‐end services and APIs with a focus on reliability, performance and scalability.Integrate multiple internal and external platforms via REST/gRPC APIs, SDKs, messaging and identity standards, owning integrations both technically and communicatively with partner teams.Champion quality engineering practices including automated testing, code reviews and observability (metrics, logs, traces) with clear SLOs.Contribute to CI/CD pipelines, containerisation and infrastructure‐as‐code to ensure operational readiness.Resolve complex production issuesMentor peers and share knowledge; foster collaboration across Engineering, SRE, Security, Product and customer‐facing teams.Improve developer experience, tooling and platform integration patterns with a pragmatic, delivery‐focused approach.8+ years of professional back‐end development experience, with expertise in C# and .NET (C#/.NET, ASP.NET and MSSQL) including building complex distributed systems in production.Experience with AI‐based systems and incorporating it in your daily development work.Track record integrating multiple platforms and systems via REST/gRPC APIs, webhooks, SDKs, messaging and identity standards (OAuth2/OpenID Connect/SAML), with cross‐team and external partner communication.Experience with data structures, algorithms, concurrency and asynchronous programming; able to build beyond frameworks.System design skills, including designing for availability, consistency and partition tolerance; capacity planning and performance engineering.Proficiency in data modelling across relational and MSSQL databases, with experience managing schema evolution and backward compatibility.Observability mindset: instrumenting custom metrics, logs, traces; using monitoring tools to understand system behaviour and performance.Proficiency with Git, CI/CD and automated testing across unit, integration and end‐to‐end levels.Experience working in globally distributed teams and collaborating across multiple time zones.Advantageous experienceExperience with Java and familiarity with the JVM ecosystem; Spring Boot exposure.Cloud experience with AWS, Azure or GCP; infrastructure‐as‐code (e.g., Terraform, Helm) and secure configuration management.Performance profiling and tuning in .NET (e.g., dotnet‐trace, PerfView) and/or JVM environments.Hands‐on experience working with CI/CD solutions (e.g. TeamCity, Octopus Deploy).Hands‐on experience with containerisation and Kubernetes (services, deployments, stateful sets, configuration, troubleshooting).Background in high‐scale SaaS, financial services or observability/monitoring domains.Health Insurance and Dental Health Cover for you and your dependantsPensionFlexible Hybrid WorkingEnhanced Parental LeaveTravel InsuranceLife AssuranceIncome ProtectionBuy and Sell HolidayTraining ReimbursementITRS is an Equal Opportunity employer and Inclusion is part of our everyday life. We celebrate diversity and pride ourselves on providing an environment where all employees can be their authentic selves and have a voice, allowing everyone to contribute equally. We remain committed to advocating inclusion, diversity, and equality into our ITRS family as we grow and enrich our business.We welcome applications from everyone in the community as we recognise that a diverse workforce is a stronger workforce.

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