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Senior Software Engineer

The world is moving to cloud computing, Microsoft is betting Microsoft Azure as our cloud computing platform. Important steps have already been taken to automate and virtualize storage and computing through software, increasing agility, asset utilization, and automated management, while shifting to scale-out, secure, and low cost infrastructure. The challenge now is to develop the software to automate and virtualize the network, and to achieve corresponding gains.

The Azure Networking team continues to innovate across the stack, pushing new scale and features into the cloud and desktop platforms while transforming our infrastructure to meet the growing needs of the 200-plus Microsoft online services, including Bing, MSN, Office 365, Xbox Live, Skype, OneDrive and several hundred thousand customers using Azure to host and run their Cloud Services in over 100 datacenters, running millions of servers and edge computing nodes all over the world.   Our teams work on the breadth of networking offerings (Networking hardware, optical and IP networks that span subsea, terrestrial and metro fiber, Hybrid services enabling VPN and MPLS connectivity from customers’ on premise network to our cloud, Edge services enabling optimized peering and routing, SDN products to enable customers to run their on-premise services in the cloud with Vnet, Load Balancer, Security Groups and Services, Application Gateways, Virtual Appliances to easily mimic on-premise architectures, and DNS services to reach and traffic manage services.

Software Defined Networking (SDN) enables customers to realize and control the network they desire for their workload in the cloud. This includes traditional enterprise network functions like ACLs, firewalls, load balancers, IPS/IDS, DoS protection, that customers want to realize in the network for their VMs in the cloud. All these need to be delivered on a shared, very high speed but low-complexity physical network based on merchant silicon. And that is where the software comes in - all these can be realized and delivered in software by building a virtual network on top of physical network, using the virtualized host as the scale-out engine for all our policy, allowing the underlying physical network to be cheap and extremely fast. Creating a new, software controlled virtualized network, optimized for the cloud, represents a once-in-ten-years technological shift. The entire industry is realizing the SDN vision and jumping into it. This is an exciting opportunity to be front and center of the two key disruptions happening: cloud and SDN. Come and be part of the code Windows Azure team responsible for building the Network Virtual Functions like software load balancer for Windows Azure.

As a Senior Software Engineer, you will find yourself in cross-functional system design, development and engineering. Because of your in-depth knowledge and capabilities, we will be able to directly impact the company’s ability to offer Azure Services and O365 components to a rapidly growing customer clientele. Microsoft’s Azure and O365 services are offered around the globe. The logistics to getting the network infrastructure in place and provisioned for the customers is simply a challenge your coding skills will address. Large-scale systems are the norm, and thinking globally while acting locally will enable the Microsoft cloud service offerings to continue to grow at unprecedented rates.   Your code will deliver key network and component provisioning capabilities while adding features along the way.   While building and provisioning network services is a monumental opportunity, your code will help create and expand the inventory of SDN tools we use to manage and run the Azure SDN product suite. Your tools and solutions will be leveraged by hundreds of Network Engineers (NEs), Site Reliability Engineers (SREs), and feature team developers alike. We want to put your skills and experience to work transforming and migrating our current services to the Azure platform. Are you looking for an opportunity to help shape the direction of a company? Do you thrive on challenge and opportunity? Do you love to build tools, services, and optimize those that already exist? Then Azure Networking wants you!

We seek candidates with expertise in one or more of the following areas:

• Networking and/or monitoring/diagnostics

• Windows internals (networking stack and other OS components); traffic and performance monitoring

• Switching and routing protocols; virtualization (hypervisors; virtual machine switching); distributed systems; directories; distributed hash tables

• Network control planes; programmable networking; control plane, fault, and performance monitoring.

• Big data

The successful candidate will have:

• Expertise in Network Design, Architecture, automation to scale

• Experience with performance optimization, telemetry and tools for scale.

• Experience shipping products or services

• Passion and drive for profound impact

Basic Requirements:

• 3+ years of software development experience


Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include, but are not limited to the following specialized security screenings:

Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.

Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or the recruiting process, please send a request to

Job #



United States, Redmond (WA)

Job families

Development (engineering)

Products and technologies



Cloud and enterprise