.NET Senior Staff Engineer New
CPL Dublin
Senior Staff Engineer – C# / .NET
Fully Remote (Ireland)
We’re partnering exclusively with a global cybersecurity SaaS leader delivering enterprise-grade Identity & Access Management (IAM) solutions trusted by large-scale organisations worldwide.
This is a fully remote role within Ireland.
This isn’t a routine development role. It’s for a senior engineer who thrives in complexity, enjoys untangling hard problems, and takes true ownership of systems from code to production.
The Opportunity
This role is approximately 90% hands-on engineering and 10% DevOps collaboration.
You will:
- Lead deep technical investigations across large-scale C# / .NET systems
- Troubleshoot complex production issues across APIs, databases, infrastructure and CI/CD pipelines
- Refactor and modernise legacy components to improve scalability, resilience and maintainability
- Act as a senior technical authority within the team
- Partner closely with DevOps on deployment strategy, observability and runtime optimisation
- Contribute to architectural decisions and platform evolution
If you believe “you build it, you own it” — this role is built for you.
Technical Environment- C# / .NET Framework 4.8 & Modern .NET
- SQL Server & MySQL
- ElasticSearch & Redis
- Docker & Kubernetes
- AWS (EKS, EC2, RDS, S3)
- GitHub Actions, TeamCity, Terraform
- Prometheus, Grafana & cloud-native monitoring
- 8+ years of commercial software engineering experience
- Deep debugging expertise across distributed and monolithic systems
- Strong database optimisation and performance tuning skills
- Confidence reading and understanding unfamiliar, large codebases
- A natural problem solver who enjoys untangling complex technical challenges
- Strong production mindset — understanding how software behaves in the real world
- Fully remote role within Ireland
- Work on a high-scale, mission-critical identity platform
- Strong technical ownership and autonomy
- Influence architectural direction and modernisation initiatives
- Flexible, engineering-first culture
#LI-JM2
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