Demo

O-RAN DU L1 Software Engineer

DeepSig, Inc.
Arlington, VA Full Time
POSTED ON 12/21/2025
AVAILABLE BEFORE 2/24/2026
Job Type

Full-time

Description

O-RAN DU L1 PUSCH Receiver Software Developer

DeepSig Inc. is a venture backed and product centric technology startup building revolutionary wireless processing software solutions using cutting edge machine learning techniques to transform baseband processing, wireless sensing, and other key wireless applications.

We are seeking a talented Software Developer to join our team focused on the O-RAN Distributed Unit (DU) Layer 1 (L1) PUSCH receiver module. In this role, you will design, develop, optimize, and maintain AI-enabled PUSCH receiver software, contributing to high-performance 5G NR networks within the O-RAN architecture.

Key Responsibilities

  • Develop and maintain O-RAN DU L1 PUSCH receiver software modules compliant with 3GPP NR specifications.
  • Implement AI-PHY layer functionalities focusing on uplink signal processing, demodulation, decoding, and error correction for PUSCH.
  • Collaborate with protocol stack developers (MAC/RLC/PDCP) and CU/DU integration teams.
  • Optimize algorithms for real-time processing on embedded/general-purpose processors.
  • Conduct rigorous unit testing, integration testing, and validation of L1 software components.
  • Work closely with system architects to ensure alignment with O-RAN split architecture and interface specifications.
  • Participate in code reviews, technical documentation, and test automation efforts.
  • Troubleshoot and resolve defects and performance bottlenecks.
  • Ensure compliance with O-RAN and 3GPP standards.

Required Qualifications

  • Bachelor’s or Master’s degree in Computer Science, Electrical Engineering, Telecommunications, or related field.
  • Strong knowledge of 5G NR PHY layer protocols, specifically PUSCH.
  • Hands-on experience with O-RAN architecture, DU, CU, and their interfaces.
  • Proficient in C/C programming with emphasis on embedded and real-time systems.
  • Familiarity with digital signal processing (DSP) techniques and algorithms related to uplink reception.
  • Experience with software development lifecycle, version control, and CI/CD pipelines.
  • Good understanding of multi-threading, concurrency, and performance optimization.
  • Ability to interpret and implement 3GPP and O-RAN technical specifications.

Preferred Skills

  • srsRAN 5G L1 development experience highly preferred
  • Experience with Layer 1 integration and testing in O-RAN or vRAN environments.
  • Knowledge of software simulation tools and radio hardware architecture.
  • Familiarity with containerization and cloud-native environments (Kubernetes, Docker).
  • Experience with MATLAB, Python, or similar tools used for algorithm development or testing.
  • Strong problem-solving skills and attention to detail.
  • Good communication and teamwork skills in a cross-functional development environment.

WORKING AT DEEPSIG

DeepSig is growing its technical team while cultivating a collaborative, agile, and fun small-team culture. We value creativity, knowledge sharing, and employee growth, and we encourage participation in scientific publications, conferences, and open-source software. We offer competitive salaries and benefits, an employee stock option grant program, an environment where we are excited to be transforming and disrupting how signal processing is done with AI/ML, a welcoming and inclusive environment, a flexible schedule, and a great work / life balance.

DeepSig is an equal-opportunity employer and does not discriminate based on race, ethnicity, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability. We are dedicated to cultivating an inclusive, diverse, and engaging workplace where individuals feel fulfilled, inspired, and motivated. We value the unique perspectives that our team brings.

Salary.com Estimation for O-RAN DU L1 Software Engineer in Arlington, VA
$96,044 to $118,550
If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a O-RAN DU L1 Software Engineer?

Sign up to receive alerts about other jobs on the O-RAN DU L1 Software Engineer career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$88,558 - $106,947
Income Estimation: 
$104,867 - $137,036
Income Estimation: 
$88,790 - $110,816
Income Estimation: 
$107,385 - $134,565
Income Estimation: 
$72,538 - $87,299
Income Estimation: 
$88,790 - $110,816
Income Estimation: 
$128,473 - $158,030
Income Estimation: 
$143,123 - $179,960
Income Estimation: 
$107,385 - $134,565
Income Estimation: 
$128,473 - $158,030
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Not the job you're looking for? Here are some other O-RAN DU L1 Software Engineer jobs in the Arlington, VA area that may be a better fit.

  • DeepSig, Inc. Arlington, VA
  • Job Type Full-time Description O-DU/CU development Sr. Technical PM DeepSig Inc. is a venture backed and product centric technology startup building revolu... more
  • 20 Days Ago

  • CED Systems Washington, DC
  • CED Systems is seeking an experienced Radio Access Network (RAN) Engineer to provide remote engineering support for our client T-Mobile's nationwide 5G net... more
  • 27 Days Ago

AI Assistant is available now!

Feel free to start your new journey!