Senior Software Engineer, Backend

Key Responsibilities:

• Develop and maintain the Spacetime platform using C++, Golang, Java, gRPC, and Protocol Buffers
• Build scalable, distributed systems on Kubernetes
• Design and develop Spacetime features for 5G NTN and Direct-to-Cell orchestration, including RIC/SMO capabilities for the NTN, network model extensions, and federation APIs for TN-NTN coordination with terrestrial operators' SMOs
• Translate 3GPP and O-RAN concepts and interface specifications into clean, well-tested software, in collaboration with our solution architects
• Integrate with other components of the Aalyria platform to ensure end-to-end functionality
• Develop and maintain documentation related to the software design and implementation
• Stay up-to-date with industry trends and technologies related to 5G NTN, O-RAN, and satellite communications
• Write clean, maintainable, and efficient code
• Troubleshoot and debug issues in the software

Required Qualifications:

• Bachelor's degree in Computer Science / Engineering or equivalent work experience
• Professional experience working in C++, Golang, and/or Java
• Knowledge of gRPC and Protocol Buffers
• Experience building and operating distributed systems
• Familiarity with wireless communications, modeling of wireless performance, or satellite communications
• Strong technical communication skills, and ability to communicate across multiple functions

Preferred Qualifications:

• We know that engineers who combine strong software craft with deep 3GPP/O-RAN domain expertise are rare, and rarer still in 5G NTN. Experience in any of the areas below will make you stand out, but we do not expect any one candidate to cover them all. If you are a great software engineer and these topics excite you, we will give you the environment and the domain experts to master them.
• Professional software development experience on systems related to 3GPP 4G/5G networks: RAN (eNB/gNB, CU/DU), Core (EPC/5GC), or their management and orchestration (OAM, FCAPS, NRM/network models)
• Hands-on experience with the O-RAN architecture: SMO, Non-RT/Near-RT RIC, rApps or xApps, or the O-RAN interfaces (O1, E2, R1)
• Familiarity with 3GPP NTN and Direct-to-Cell / Supplemental Coverage from Space concepts (Rel-17+)
• Experience implementing or integrating against 3GPP or O-RAN specified APIs and data models (e.g. SA5 NRM, 3GPP SBI, O-RAN R1 service APIs)
• Experience with wireless standards work or applying 3GPP/ETSI/O-RAN specifications in production software
• Hands-on experience working with Kubernetes and cloud-native telecom deployments (CNFs, Helm, service mesh)
• Professional experience with performance optimization of distributed systems
• Experience working in the aerospace & defense or telecommunications industry
• Familiarity with software-defined networking platforms

What We Offer:

• Innovative Environment: Work at a cutting-edge company shaping the future of aerospace communications.
• Impactful Work: Directly contribute to critical national security programs and initiatives.
• Growth Opportunities: Expand your career with opportunities for professional development and advancement.
• Inclusive Culture: Be part of a collaborative, supportive, and inclusive workplace where your contributions matter.
• Flexibility: Flexible working arrangements including hybrid remote/in-office schedules.
• Competitive compensation, Pension Plan, Health insurance, 25 days annual leave, Equity

Work Requirements & Location:

• Applicants must have the right to work in the United Kingdom.
• Work Location: Remote working within the UK.

Equal Opportunity Employer Statement:

About Aalyria: