Francisco Paisana
Staff Engineer at Software Radio Systems
Barcelona, Catalonia, Spain
Summary
🤩
Rockstar🎓
Top SchoolFrancisco Paisana is a Staff Engineer based in Barcelona with 10 years of experience building and hardening radio access software for cellular networks. With a PhD in Cognitive Radio from Trinity College Dublin and a background in telecommunications engineering, he blends deep academic insight with production-grade engineering. At Software Radio Systems he has driven scheduler and HARQ-related improvements across prominent open-source projects like srsRAN, contributing both feature work and unit tests to a widely used SDR 4G/5G suite. He focuses on backend systems that optimize channel quality, retransmission strategies and bearer reconfiguration—areas that materially affect real-world network reliability and performance. Colleagues know him for translating complex wireless research into pragmatic code and test coverage that prevents regressions in critical timing-sensitive modules. Fluent in both research and product engineering, he thrives on closing the loop from simulation and theory to deployed network stacks.
10 years of coding experience
4 years of employment as a software developer
Doctor of Philosophy (PhD), Cognitive Radio, Doctor of Philosophy (PhD), Cognitive Radio at Trinity College, DublinMaster's degree, Telecommunications Engineering, Master's degree, Telecommunications Engineering at Instituto Superior Técnico
English, Portuguese
Stackoverflow
1reputation
0reached
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Github Skills (10)
unit-testing10
scheduling10
algorithms10
c-language10
sched10
cprogramming-language10
scheduler10
test-automation10
network-protocol9
tdd8
Programming languages (4)
Github contributions (5)
srsran/srsRAN_Project
Jan 2022 - Mar 2023
Open source O-RAN 5G CU/DU solution from Software Radio Systems (SRS) https://docs.srsran.com/projects/project
Role in this project:
Backend Engineer
Backend EngineerContributions:1185 commits, 16 comments, 3 issues in 1 year 2 months
Contributions summary:Francisco's contributions focused on implementing unit tests for the scheduler module of the srsRAN project. The commits involve writing tests for various scheduler components, including HARQ processes, the handling of DL and UL traffic, and PDSCH and PUSCH allocation. The code changes include refactoring existing tests, adding new tests, and ensuring that the test cases cover different TDD configurations, indicating a focus on the core logic of the scheduler.
5gsdrsrssrsranwireless
srsran/srsRAN_4G
Mar 2018 - May 2022
Open source SDR 4G software suite from Software Radio Systems (SRS) https://docs.srsran.com/projects/4g
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 reviews, 1830 commits, 2 PRs in 4 years 3 months
Contributions summary:Francisco's primary contributions involve modifications to the srsran_4g software suite, particularly in the area of scheduler improvements. Their work focuses on optimizing the scheduler component, implementing new features related to channel quality information (CQI) and retransmission strategies. They also made code changes to update and reconfigure bearer parameters related to RRC reestablishment.
ltertlsdrsrssoftware-defined-radiosrsenb
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