DSP Integration Test Engineer

The Opportunity AttoTude's world-class engineering team works in a fast-paced, agile environment to develop next-generation baseband modems for intra-DCI applications. As a member of the system test team, the DSP Integration Test Engineer will own the bring-up, integration, and hardware maturity of high-speed DSP s coupled with AttoTude’s proprietary DiAx cable technology . The ideal candidate will be prepared to work with early prototypes, bringing up transmit and receive DSP functions on hardware and characterizing the combined performance of AttoTude’s 448Gbps/PAM4 AEC modules. A key component of this role is the ability to understand and make tradeoffs across DSP, analog, and RF subsystems to optimize overall system performance and carry it through to volume production . The candidate should anticipate frequent interactions with design engineers on signal processing and performance optimization . The role also includes designing, debugging, and optimizing firmware algorithms that maintain robust performance over varying link conditions. Roles and Responsibilities The successful candidate will play a pivotal role in bringing AttoTude's next-generation communications platform from prototypes to volume production. Responsibilities include: Hardware bring-up and matur ation of high-speed DSP on prototype and production hardware, including transmit and receive data - path configuration, link optimization , troubleshooting and debug Characterize and optimize Tx and Rx DSP blocks, including feed-forward and decision-feedback equalizers, MLSE, clock (timing) recovery, and assess their performance, complexity, and power tradeoffs Measure high-speed DACs and ADCs (e.g., ENOB, SNDR, linearity, interleaving spurs, bandwidth, jitter and phase noise) and quantify their impact on modem SNR and BER Develop calibration methods and transfer them to automated manufacturing test Develop and test DSP-based control loops, including adaptation convergence, loop stability, tracking, and robustness over process, voltage, and temperature Analyze link performance (pre-FEC BER, SNR) and correlate measurements with system models Develop Python-based lab automation for test, characterization, and data analysis <span