Anumana
Website:
anumana.ai
Job details:
ECG technologist – Job Description
Experience 2+ Years
Level Junior/ Mid-Level
Location Bengaluru
Work Mode Hybrid
About Anumana
Anumana is a pioneering AI-driven health technology company at the forefront of transforming cardiovascular care. Born out of a collaboration between nference and the Mayo Clinic, we are dedicated to unlocking the secrets of the heart's electrical signals to enable earlier detection, more precise diagnoses, and improved treatments for heart disease.
Our portfolio of ECG-AI algorithms is redefining how clinicians can leverage routine medical data to identify and manage cardiovascular conditions. As a company operating in a highly regulated and mission-critical domain, we are committed to the highest standards of quality, security, and scientific rigor.
Job Summary
As an ECG Technologist at Anumana, you will be a critical clinical contributor to our AI and data science teams, responsible for the expert annotation, quality review, and clinical interpretation of electrocardiographic and electrophysiological data. You will work at the intersection of cardiac electrophysiology, medical imaging, and cutting-edge AI — annotating intracardiac electrograms (EGMs), surface ECGs, electroanatomic maps, and imaging datasets that directly train and validate Anumana's next-generation cardiac AI models.
This role demands deep clinical knowledge of cardiac conduction, arrhythmia mechanisms, mapping technologies, ablation modalities, and cardiac imaging — combined with the curiosity and rigor to work in an AI-first research environment.
Key Responsibilities
- ECG & EGM Annotation and InterpretationAnnotate 12-lead ECGs for waveform components: P wave, PR interval, QRS complex, ST segment, T wave, QT/QTc interval, and U wave with precise measurement and morphology classification.
- Label ECG axis (frontal, horizontal) and polarity determinations across all leads.
- Identify and annotate arrhythmias including AF, atrial flutter, VT, SVT, heart blocks, WPW, BBB, and conduction system abnormalities.
- Annotate intracardiac EGMs from electrophysiology study catheters: diagnostic catheters (HRA, His, CS, RV) and mapping/ablation catheters.
- Label EGM intervals: AH, HV, VA, VH intervals; atrial and ventricular refractory periods; accessory pathway characteristics.
- Annotate synthesis patterns: fused beats, paced beats, entrained beats, and post-pacing intervals (PPI) in EPS tracings.
- Medical Imaging AnnotationReview and annotate fluoroscopic images for catheter positions, lead placements, and anatomical projections (RAO, LAO, AP).
- Analyse CT datasets for cardiac anatomy segmentation — pulmonary vein anatomy, LAA morphology, coronary sinus course, His bundle region.
- Review TTE, TEE, and ICE echo images for structural assessment: valve function, septal defects, effusion, LAA thrombus, and catheter visualization.
- Support cardiac MRI segmentation annotation, including LGE fibrosis mapping, myocardial scar delineation, and volumetric measurements.
- Quality Control & ConsistencyUphold annotation standards and inter-annotator agreement (IAA) benchmarks across all ECG, EGM, and imaging annotation tasks.
- Conduct regular QC reviews to identify and resolve labeling errors, morphological misclassifications, and annotation inconsistencies.
- Participate in annotation calibration sessions with clinical leads and cardiologists/electrophysiologists.
- Collaboration & CommunicationCollaborate with electrophysiologists, cardiologists, and data scientists to define and refine annotation schemas.
- Provide structured clinical feedback on AI model outputs, flagging edge cases and failure modes.
- Document annotation guidelines, definitions, and decision criteria to ensure reproducibility across the team.
- Data Management & ToolsUse annotation platforms and labelling tools for ECG, EGM, imaging, and EAM data.
- Maintain version-controlled annotation datasets with proper traceability.
- Contribute to building reference libraries for waveform archetypes, arrhythmia patterns, and imaging landmarks.
Required Clinical Knowledge & Skills
Surface ECG Expertise
- Extracardiac ECG fundamentals: lead placement, electrode configuration, signal acquisition.
- Waveform morphology: P wave, QRS complex, T wave, U wave — normal variants and pathological patterns.
- Interval and segment mastery: PR, QRS, QT/QTc, ST segment, TP segment.
- Axis determination: frontal plane axis, horizontal plane axis, right-axis/left-axis deviation.
- ECG polarity principles across standard leads (I, II, III, aVR, aVL, aVF) and precordial leads (V1–V6).
- ECG synthesis: identifying fusion beats, capture beats, pseudo-fusion, paced morphologies.
- Definitions and recognition: LBBB, RBBB, LAHB, LPHB, WPW delta wave, LVH/RVH criteria, ischemia patterns.
Intracardiac EGM Expertise
- Intracardiac signal acquisition: bipolar vs. unipolar recordings, near-field vs. far-field signals.
- Catheter-specific EGMs: HRA, His bundle (A-H-V deflections), coronary sinus (proximal to distal), RV apex.
- EGM interval definitions: AH interval, HV interval, VA interval, VH interval, AVNRP, VERP, AERP.
- Arrhythmia mechanism analysis from EGMs: re-entry, triggered activity, automaticity.
- EGM features for ablation targeting: fractionated EGMs, late potentials, double potentials, accessory pathway potentials.
- Pacing maneuvers: overdrive suppression, entrainment, AVNRT/AVRT differential pacing protocols.
Arrhythmia Knowledge
- Supraventricular arrhythmias: AVNRT, AVRT, atrial flutter (CTI and non-CTI), focal atrial tachycardia, atrial fibrillation.
- Ventricular arrhythmias: PVCs, NSVT, VT (scar-related, focal, RVOT, papillary muscle), VF.
- Bradyarrhythmias: sinus node dysfunction, AV block (1°, 2° Mobitz I/II, 3°), junctional rhythms.
- Conduction disorders: BBB, fascicular blocks, HPS disease, concealed conduction.
- Special syndromes: WPW, CPVT, Brugada, Long QT, Short QT, early repolarization syndrome.
- Mechanisms: macro re-entry, micro re-entry, triggered activity (EADs, DADs), enhanced automaticity.
Mapping Technologies
- Familiarity with major electroanatomical mapping systems: CARTO 3 (Biosense Webster), EnSite X / Precision (Abbott), Rhythmia HDx / Orion (Boston Scientific).
- Understanding of map types: activation maps, voltage maps, propagation maps, CFAE maps, ripple maps.
- Multielectrode mapping concepts: high-density mapping, omnipolar technology, basket catheters.
- Image integration: CT/MRI merge with EAM, registration accuracy assessment.
Ablation Modalities
- Radiofrequency ablation (RFA): energy delivery principles, lesion assessment, contact force monitoring.
- Cryoablation: freeze-thaw cycles, cryomapping, pulmonary vein isolation applications.
- Pulsed Field Ablation (PFA): non-thermal irreversible electroporation, tissue selectivity; familiarity with systems such as FaraWave (Boston Scientific) and FARAPULSE.
- Ablation endpoints: entrance/exit block, PV isolation criteria, bidirectional block, CFAE elimination.
Medical Imaging Knowledge
- Fluoroscopy: RAO/LAO projections, catheter identification, lead positioning, contrast venography.
- CT: cardiac anatomy interpretation, PV ostia characterization, LAA morphology (chicken wing, cactus, cauliflower, windsock), coronary anatomy.
- MRI: cardiac function assessment, myocardial tissue characterization, LGE fibrosis patterns, cine imaging.
- Echocardiography (TTE): standard views, LV/RV function, valve morphology, LVEF estimation.
- TEE: multi-plane imaging, LAA thrombus exclusion, septal anatomy, real-time procedural guidance.
- ICE: catheter-based intracardiac imaging, Home View, pulmonary vein visualization, septal puncture guidance, LAA closure monitoring.
Education
- Bachelor's or Master's degree in Cardiac Technology, Cardiovascular Technology, Clinical Physiology, Biomedical Engineering, or a closely related field.
- Certification as a Cardiac Electrophysiology Specialist (CEPS) or Registered Cardiac Electrophysiologist (RCE) is highly desirable.
- Additional certifications in echocardiography (RDCS/RCS) or cardiac imaging are a plus.
Professional Experience
- Minimum 2 years of hands-on experience in a cardiac electrophysiology laboratory, cardiac catheterization lab, or cardiac diagnostic unit.
- Experience with ECG interpretation in a clinical or research setting.
- Prior exposure to intracardiac EGM recording and analysis during EP studies or device follow-up is strongly preferred.
- Experience with any electroanatomic mapping system (CARTO, EnSite, Rhythmia) is a significant advantage.
- Familiarity with medical data annotation, labelling platforms, or clinical research data management is beneficial.
Benefits
- Work on cutting-edge medical technology
- Build technical capabilities with significant autonomy
- Clear growth path as the team expands
- Competitive compensation
- Comprehensive Health Insurance for you and your family
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