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Darwin RecruitmentPretoria

Electrical Engineer (HV Substations)

Project-Based

Description

Optics11 Energy is the power-grid reliability arm of Optics11, focused on fiber-optic sensing and analytics for high- and medium-voltage equipment. Our flagship OptiFender platform delivers ultra-early, EMI-immune partial discharge (PD) detection and precise localization across transformers, cables, GIS/GIL and switchgear. We help TSOs/DSOs and industrial operators move from reactive repairs to predictive maintenance, improving safety, uptime, and total cost of ownership.

Key responsibilities:

  • Design and implement advanced algorithms for our partial discharge monitoring platform.
  • Translate complex business and engineering requirements into robust, production-ready algorithms.
  • Collaborate with data scientists, software engineers, and domain experts to develop data analysis, feature extraction, and signal processing pipelines.
  • Explore and analyse large-scale sensor and operational datasets to uncover actionable insights and improve system performance.
  • Consult embedded and software teams to optimize algorithm integration into real-time and edge environments.
  • Contribute to model validation, performance monitoring, and continuous improvement of deployed solutions.

What’s in it for you?

  • Innovative high-tech, international organization.
  • The opportunity to work in a cross-functional and interdisciplinary environment.
  • A lot to learn and to develop, we stimulate personal development.
  • A flat organization, the less hierarchy, the better.

Requirements

Technical skills:

  • Expert-level proficiency in Python and common data science libraries (e.g., pandas, NumPy, SciPy, scikit-learn).
  • Strong background in algorithm development, statistical analysis, and data modelling.
  • Solid understanding of signal processing techniques (e.g., filtering, denoising, Fourier/wavelet transforms, PCA).
  • Experience building and deploying machine learning models.
  • Ability to relate data patterns to physical phenomena in real-world systems.
  • Deep learning experience with PyTorch, TensorFlow, or JAX.

Nice-to-Have:

  • Experience working with big data technologies and cloud platforms (AWS, Azure, GCP).
  • Knowledge of database technologies (QuestDB, MongoDB, PostgreSQL).
  • GPU programming experience (CUDA) or real-time edge deployment.
  • Strong understanding of clean code structure, design patterns, maintainable code practices, and object-oriented programming.
  • C/C++ experience.

Qualifications:

  • You have at least 3 years of professional experience in data science with focus on sensor data analysis.
  • Familiarity with real-time systems, edge computing, or predictive maintenance solutions is a plus.
  • Experience contributing to end-to-end ML projects, from problem framing to deployment and monitoring.
  • M.Sc. or Ph.D. degree in a relevant discipline in science or engineering.
  • Strong analytical and problem-solving skills.
  • Excellent practical knowledge of mathematics, physics, data science techniques.
  • You have a can-do mentality with no fear of getting your hands dirty when needed.
  • You have strong verbal and written communication skills in English.
  • You can work independently as well as in a team with well-developed communication skills.

Darwin Recruitment is acting as an Employment Agency in relation to this vacancy.

Veronica Gains

Skills

AWSMLPostgreSQLGCPTensorFlowPythonData AnalysisNumPyPandasData ScienceDeep LearningNumpyPyTorchSciPyFiberC++MongoDBLessAzurecppMachine Learningscikit-learncplusplusScikit-Learn