
Founded in 2014, Tachyus is a leader in operational optimization for the oil and gas industry. Aqueon, our waterflood modeling and optimization platform, powered by our proprietary engine Data Physics, has increased production and reduced costs and GHG emissions for operators worldwide. We also recently extended Aqueon for CO2 EOR optimization and is already being used by major operators in the US. In early 2021, Tachyus entered the ESG space with Aurion, a fully integrated software platform that helps GHG intensive industries like oil and gas estimate, forecast, optimize and report GHG emissions and intensity. Since then, we have rapidly established ourselves as a leader in this space with over 20 clients in the US, Middle East and Latin America.

Founded in 2014, Tachyus is a leader in operational optimization for the oil and gas industry. Aqueon, our waterflood modeling and optimization platform, powered by our proprietary engine Data Physics, has increased production and reduced costs and GHG emissions for operators worldwide. We also recently extended Aqueon for CO2 EOR optimization and is already being used by major operators in the US. In early 2021, Tachyus entered the ESG space with Aurion, a fully integrated software platform that helps GHG intensive industries like oil and gas estimate, forecast, optimize and report GHG emissions and intensity. Since then, we have rapidly established ourselves as a leader in this space with over 20 clients in the US, Middle East and Latin America.
Sector: Energy software (operational optimization & GHG management)
Flagship product(s): Aurion (GHG platform), Aqueon (waterflood modeling/optimization)
Founded: 2013–2014 (company sources cite 2014; third‑party profiles cite 2013)
Funding signal: Multiple VC rounds; most recent documented: Series B (May 20, 2019)
Customers / scale claims: Claims: 50+ customers, 50K+ assets modeled, presence in 20+ countries
Operational optimization for oil & gas (reservoir and operations) and greenhouse gas emissions management for GHG‑intensive industries.
Software Development
“Multiple venture capital rounds; investors include Montrose Lane, Founders Fund, Caffeinated Capital, Streamlined Ventures”
We are seeking a highly motivated to contribute to the next generation of reservoir modeling technologies. This role focuses on the of advanced computational methods combining . You will work on developing novel algorithms, enhancing simulation capabilities, and bridging data-driven and physics-based modeling approaches to support the energy transition and improve reservoir management workflows. * Conduct in reservoir simulation, computational physics, and data-driven methods. * Develop and prototype novel algorithms that integrate , including surrogate modeling, reduced-order modeling, and hybrid physics-ML models. * Research and implement advanced , including ensemble-based methods, adjoint-based gradient optimization, and Bayesian inference for history matching and uncertainty quantification. * Develop and apply for field development planning, production enhancement, and reservoir control under uncertainty. * Collaborate with cross-disciplinary teams including reservoir engineers, geoscientists, data scientists, and software engineers. * Publish research outcomes in peer-reviewed journals, patents, and present at industry and academic conferences. * Provide technical leadership in framing R&D roadmaps, identifying high-impact research directions, and supporting technology transfer into commercial or operational tools. * Contribute to the development of internal software prototypes or production-grade software for reservoir modeling and AI-enabled workflows. * Ph.D. in with a focus on numerical simulation, optimization, or machine learning applications. * Strong background in , linear and nonlinear solvers, and reservoir flow physics. * Expertise in , including finite difference, finite volume, or finite element methods applied to multiphase subsurface flow. * Demonstrated research experience in one or more of the following: + (e.g., surrogate modeling, neural networks, Gaussian processes, physics-informed ML) + (e.g., Ensemble Kalman Filter, Ensemble Smoother, Adjoint-based optimization, Bayesian inference) + (e.g., field development planning, well control optimization, robust optimization under uncertainty) * Proficiency in (ideally Python and MATLAB) for algorithm development and prototyping. * Proven track record of in relevant technical domains. * Experience integrating , including Physics-Informed Neural Networks (PINNs) or hybrid models. * Knowledge of high-performance computing (HPC), parallel programming, or cloud computing for large-scale simulations. * Familiarity with open-source or commercial reservoir simulators (e.g., MRST, Open Porous Media, Eclipse, Intersect, tNavigator, CMG). * Experience with probabilistic modeling, uncertainty quantification, and decision-making under uncertainty. * Background in related domains such as is a plus. * Strong analytical and problem-solving skills with a rigorous scientific approach. * Ability to communicate complex technical ideas clearly to both technical and non-technical audiences. * Self-driven, collaborative, and passionate about advancing the state of the art in reservoir engineering and computational sciences. * Comfortable working in both independent research settings and collaborative, multi-disciplinary environments. * Work on cutting-edge problems at the intersection of . * Be part of a collaborative R&D team influencing the future of energy, carbon management, and sustainable subsurface technologies. * Opportunities to publish, patent, and contribute to open-source software or commercial products. * Competitive compensation, research freedom, and professional growth in a dynamic, innovation-driven environment.