.NET Developer / Engineering Systems SRE – Engineering Systems & Continuous Testing (Azure Cosmo

Overview

We are looking for a highly skilled .NET Developer / Engineering Systems SRE to join a large-scale cloud database engineering team working on Azure Cosmos DB. This is not a traditional application development role. You will sit at the intersection of backend engineering, DevOps, SRE, and distributed testing, owning the engineering systems that power daily development for one of the world’s largest and most complex codebases. You will be responsible for CI/CD pipelines, repository operations, developer productivity tooling, dev box engineering, and large-scale distributed test frameworks, while also contributing hands-on code in C#, .NET, and C++.

Key Responsibilities

Engineering Systems & CI/CD

Own and evolve CI/CD pipelines using Azure DevOps or GitHub Actions

Design and maintain YAML pipelines, artifact/versioning strategies, and build

orchestration

Manage and scale self-hosted build agents/runners

Improve pipeline reliability, performance, caching, and throughput for large C#

and C++ builds

Partner with infrastructure teams to harden and scale build systems

Repository Operations (Git at Scale)

Maintain a large central monorepo

Define and enforce branching/merging strategies and PR hygiene

Implement policy automation, repo analytics, and hygiene tooling

Work with advanced Git workflows: sparse checkout, Git LFS, submodules,

subtrees

Continuous Testing & Distributed Frameworks

Design, develop, and operate distributed/system test frameworks

Automate cluster provisioning and data seeding

Improve test flakiness detection and stability

Run and optimize performance and regression test suites

Support large-scale feature validation for distributed database services

Azure Cosmos DB (Hands-On)

Work deeply with Azure Cosmos DB in production environments

Optimize partitioning strategies, RU budgeting, and autoscale

Configure and manage consistency levels, multi-region replication, and

failover

Tune indexing policies, TTL, and Change Feed pipelines

Deliver concrete performance and operability improvements

Backend Development

Design, develop, and maintain backend applications using .NET, C#, and C++

Write clean, maintainable, and well-documented code following SOLID and

OOP principles

Build tooling, test harnesses, and internal automation

Debug build, test, and production-like failures

Dev Box Engineering

Create and maintain developer environment images (“dev boxes”)

Automate dependency provisioning and environment hydration

Enable reproducible local builds

Reduce time-to-first-build for developers

AI Enablement (Nice to Have)

Build and maintain a repository index for semantic code search

Integrate embeddings for improved code discoverability

Enhance Copilot experiences (documentation extraction, taxonomy/ontology

curation)

Collaboration & Triage

Partner with internal engineers to reproduce and diagnose large-scale

database issues

Design test strategies for new features and performance scenarios

Participate in design discussions, architecture reviews, and sprint

ceremonies

Communicate clearly across globally distributed teams

Required Qualifications

Bachelor’s degree in Computer Science or equivalent experience

5+ years of experience supporting engineering systems, CI/CD,

build/release engineering, SRE, or developer productivity for large

codebases

Strong hands-on programming experience with .NET, C#, and C++

Hands-on production experience with Azure Cosmos DB

Deep experience with CI/CD using Azure DevOps and/or GitHub Actions

Expertise in YAML pipelines, artifact management, and build

orchestration

Strong knowledge of Git for large repositories (monorepos, LFS, sparse

checkout, submodules/subtrees)

Experience with distributed/system testing, performance testing, and flaky

test mitigation

Strong troubleshooting and debugging skills

Excellent communication and documentation skills

Ability to work effectively with global teams

Preferred / Nice-to-Have Qualifications

Experience with self-hosted build agents, runner scale-out, or Kubernetes

(CKA)

Experience building developer productivity tooling or dev box images

Exposure to AI-assisted developer tooling, embeddings, or semantic code

search

Experience With Large-scale Cloud Platforms (Azure Preferred)

Experience supporting high-throughput, distributed systems

Certifications (Strong Advantage)

Top Priority

DP-420 – Azure Cosmos DB Developer Specialty

AZ-400 – Microsoft DevOps Engineer Expert

AZ-204 – Azure Developer Associate

Valuable Plus

AZ-104 – Azure Administrator

AZ-500 – Azure Security Engineer

GitHub Actions / Azure DevOps certifications

CKA – Certified Kubernetes Administrator

AI-900 – Azure AI Fundamentals

Tech Stack

Languages: .NET, C#, C++

Database: Azure Cosmos DB

CI/CD: Azure DevOps, GitHub Actions

Version Control: Git (monorepo workflows, policy automation)

Testing: Distributed test harnesses, performance & regression suites

Infrastructure: Build agents, cluster orchestration

AI Tooling: Code indexing, embeddings, semantic search

Collaboration: Microsoft Teams, GitHub, Azure DevOps