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Software Engineer II - Azure Boost

Microsoft

Microsoft

Software Engineering
Bulgaria
Posted on Dec 19, 2025
Overview

Microsoft builds high-performance and reliable networks to support cloud computing and emerging workloads such as artificial intelligence and machine learning. Microsoft Azure is one of the largest public cloud platforms globally, offering a powerful channel for product impact that reaches millions of users daily. Through partnerships with global leaders in artificial intelligence, Azure provides unique opportunities for innovation at the forefront of high-performance computing and networking.

Our team has delivered Azure Boost, a system that offloads virtualization processes traditionally performed by the hypervisor and host OS onto purpose-built hardware and software. We are now looking for talented software engineers to join our team in Microsoft Development Center Serbia, developing Azure’s next generation networking devices. Our team develops products spanning across all layers of the networking stack, from Field Programmable Gate Arrays (FPGA) offloading, through kernel drivers, Data Plane Development Kit (DPDK) applications up to user space code and more. Microsoft Azure is building the fastest and most secure networks in public cloud, and we are seeking candidates who ideally have networking and/or security background. This opportunity will allow you to be challenged with complex engineering problems, accelerate your career growth, collaborate with top-notch engineers from around the world, innovate and impact next generation of advanced hardware/software acceleration products in the world's leading cloud.

Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.



Responsibilities
  • Design, produce and deliver software to improve the usability, reliability, scalability, performance and security of the product, having independence, sense of ownership and drive for areas of ownership
  • Develop Windows/Linux drivers, services and applications
  • Participate in multidisciplinary projects in Microsoft, with our Hardware and OS partners
  • Collaborate with different partners in Azure Core team in Israel, US, India and Europe
    You will act as a Designated Responsible Individual (DRI) working on-call to monitor system/product feature/service for degradation, downtime, or interruptions and gain approval to restore system/product/service for simple problems


Qualifications

Required Qualifications:

  • Bachelor's Degree in Computer Science, Electrical Engineering, or related technical field AND 2+ technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python

  • OR equivalent experience.

Other Qualifications:

  • 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.

Preferred Qualifications:

  • Bachelor's Degree in Computer Science, Electrical Engineering, or related technical field AND 4+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python

  • OR Master's Degree in Computer Science, Electrical Engineering, or related technical field AND 2+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python

  • OR equivalent experience.

  • Experience with operating systems internals

  • Understanding of TCP/IP and other networking concepts.

  • Experience in one or more of the following: Linux and Windows networking stacks and other OS components; Host network offloads; RDMA, SR-IOV; Virtualization (hypervisors, virtual machine switching); TCP/IP; PCIe; Switching and routing protocols; Network hardware - NICs, switches, routers; Load balancing; Network virtualization; QoS and scheduling; Networking at scale, deployment and servicing at scale; Cloud networking architectures; Performance optimization of low-level code.


This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.




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