Chief Operating Officer (COO)

Novamechanics Ltd, Cyprus

May 2023 - Present

• Led the successful relocation and establishment of company operations in Nicosia, Cyprus.
• Established and led the company’s certified Training Centre, officially accredited by the Human Resource Development Authority (ANAD), managing the full certification process end-to-end.
• Appointed Director of the ANAD-certified Vocational Training Centre (KEK), responsible for strategic planning, compliance, and quality assurance.
• Certified ANAD Trainer (Level 5), delivering advanced professional training programmes.
• Delivered certified training in Data Analytics, Machine Learning and Deep Learning, Java Programming, Web Application Development, Drug Design, and Molecular Modelling and Simulations.
• Designed, coordinated, and delivered ANAD-approved intra-company and inter-company training programmes, generating approximately €60,000–€80,000 in annual revenue for the company.
• Oversaw daily office operations, staff coordination, and company growth strategies.
• Developed and maintained a strong network of collaborators, including academic professors and industry stakeholders.
• Supervised 2 Ph.D. students and mentored junior researchers.
• Actively participated in over 7 European Horizon and national research projects.
• Contributed to more than 4 European Horizon project proposals, successfully securing funding for 3.
• Delivered technical presentations and contributed to project planning and reporting.
• Published 7 peer-reviewed journal articles in areas of web application development, machine learning, and data science.
• Led development of web applications using Maven projects in Eclipse IDE with Java backend and WildFly server.
• Designed front-end interfaces using HTML, CSS, JavaScript, and the ZK framework.
• Built stand-alone JavaFX frontends integrated with backend services for interactive desktop applications.
• Architected and implemented backend modules for an in-house data analytics platform using Java and Maven.
• Developed advanced computational methods including D-optimal Fedorov algorithm, robust parameter design, mixture design and pareto analysis for Design of Experiments (DoE).
• Conducted rigorous backend testing using JUnit to ensure high code quality and robustness.
• Evaluated and benchmarked statistical software packages including IBM SPSS, Minitab, JMP, Statgraphics Centurion, and GraphPad Prism.
• Applied statistical and ML techniques across multiple domains: Hypothesis testing (t-tests, chi-square, ANOVA), normality/non-parametric tests (Kolmogorov-Smirnov, Mann-Whitney U). Regression models (linear, logistic, ridge), handling class imbalance (SMOTE, class weighting). orrelation analysis (Pearson, Spearman), and unsupervised learning approaches.

Senior Software Engineer (Aspen IP.21 and Aspen HYSYS)

Hyperion Systems Engineering Ltd, Cyprus

Jan 2023 - May 2023

• Integration ETL services for Kuwait National Petroleum Company (KNPC)
• Aspen HYSYS services for Kuwait National Petroleum Company (KNPC)
• Machine Learning algorithms for polymer processing systems
• Microsoft SQL Server Integration services and Aspen InfoPlus.21 system database admin for ELPEDISON Power (subsidiary company of Hellenic Petroleum) in Greece
• Aspen InfoPlus.21 batch tracking consultant for Borouge Petrochemical at Ruwais in Abu Dhabi
• Project coordinator of MES applications for Kuwait National Petroleum Company (KNPC)
• Manage multiple clients and issues

Software Database Engineer of Kuwait refineries (Aspen IP.21)

Kuwait National Petroleum Company (KNPC), Kuwait

Jan 2021 - Dec 2022

• Aspen InfoPlus.21 Administrator for Mina Al Ahmadi (MAA) and Mina Abdullah (MAB) Refineries in Kuwait
• Database administration tasks such as backup and recovery, monitoring, and security
• Server administrator configuring IIS, DNS, AD (Active Directory), firewall, server virtualization and tuning server's performance
• Developing data warehousing and business intelligence protocols
• Programming in SQL server (stored procedures, triggers, functions)

Post-Doctoral Researcher

The Cyprus Institute, Cyprus

Aug 2020 - Dec 2021

• Systematic molecular-level understanding of the structure of 2D-organic semiconductor single crystals at the liquid-vapour interface and of crystallization pathways, as a function of molecular-architecture and thermodynamic, dynamical, as well as process-related parameters.{link}
• Micellization behaviour and self-assembly of surfactant molecules. Bring materials modelling to the heart of business decision making by integrating materials modelling into state-of-the-art business decision support systems (BDSS){link}
• Publications:

1. P. Bačová, D.G. Mintis, E. Gkolfi, V. Harmandaris, “Mikto-arm stars as soft-patchy particles: from building blocks to mesoscopic structures”, Polymers 2021, 13 (7), 1114.{link}
2. S.D. Peroukidis, D.G. Mintis, Ian Stott, V.G. Mavrantzas, “Molecular simulations of the structure and viscosity of aqueous micellar solutions of sodium lauryl sulfate surfactants”, JPhys Materials 2021, 4, 044001.{link}

Ph.D. Researcher (Marie-Curie Fellowship)

University of Patras, Greece

Jun 2016 - Jul 2020

• Computational methods for the atomistic simulation of phase behaviour and structure of pH and temperature responsive polymers and polypeptides than can present self-organized patterns. Molecular level understanding of the relevant physiochemical parameters (salt concentration, pH, temperature, composition, chain length, strength of specific interactions) on chain self-organization and microstructure{link}
• Awarded of around 17 million CPU & GPU core hours for performing molecular simulations in HPC centers
• Molecular Modeling Methods Employed: Molecular Dynamics, Monte Carlo, Brownian Dynamics, Dissipative Particle Dynamics
• Quantum Modeling Methods Employed: Hartree-Fock, Density Functional Theory
• Free Energy Calculation Methods Employed: Widom Test Particle Insertion, Free Energy Perturbation, Thermodynamic Integration, Potential of Mean Force Calculations, Umbrella Sampling
• Publications:

1. D.G. Mintis, V.G. Mavrantzas, “Effect of pH and Molecular Length on Structure and Dynamics of Short poly(acrylic acid) in Dilute Solution: Detailed Molecular Dynamics Study”, J. Phys. Chem. B 2019, 123, 4204- 4219.{link}
2. D.G. Mintis, M. Dompé, M. Kamperman, V.G. Mavrantzas, “Effect of Polymer Concentration on Structure and Dynamics of Short Poly(N,N-dimethylaminoethyl methacrylate) in aqueous solution: A Combined Experimental and Molecular Dynamics Study”, J. Phys. Chem. B 2020, 124, 240-252.{link}
3. T.S. Alexiou, D.G. Mintis, V.G. Mavrantzas, “Molecular dynamics simulation of the diffusion dynamics of linear DNA fragments in dilute solution with the Parmbsc1 force field and comparison with experimental data and theoretical models”, Macromolecules 2020, 53, 6135-6150.{link}
4. D.G. Mintis, T.S. Alexiou, V.G. Mavrantzas, “Effect of pH and Molecular Length on the Structure and Dynamics of Linear and Short-Chain Branched Poly(ethylene imine) Chains in Dilute Solution: Scaling Laws from Detailed Molecular Dynamics Simulations”, J. Phys. Chem. B 2020, 124, 6154-6169.{link}
5. D.G. Mintis, V.G. Mavrantzas, “Phase Boundary and Salt Partitioning in Coacervate Complexes formed between Poly(acrylic acid) and Poly(N,N-dimethylaminoethyl methacrylate) from Detailed Atomistic Simulations combined with Free Energy Perturbation and Thermodynamic Integration Calculations”, Macromolecules 2020, 53, 7618-7634.{link}
6. D.G. Mintis, A. Chasapi, K. Poulas, G. Lagoumintzis, C.T. Chasapis, “Assessing the Direct Binding of ArkLike E3 RING Ligases to Ubiquitin and Its Implication on Their Protein Interaction Network”, Molecules 2020, 25, 4787.{link}

Process Data Engineer

Wessex Water (GENeco), UK

May 2014 - Aug 2015

• Developed and Implemented a real time monitoring tool, Amulet Predictive Analytics, at the biggest wastewater treatment plant of Wessex Water, food waste plant and gas-to-grid plant located in the city of Avonmouth, a village near by Bristol
• Proven increase of process efficiencies which had led to the minimisation of operating costs in chemical, electricity and water usage (~£30k savings)
• Shortlisted under the top innovation projects category of the company for the year 2014-2015

Sergeant

National Guard, Cyprus

Jul 2009 - Jul 2011

• Led a small army unit, consisting of 20 soldiers, where I was responsible for their individual training, personal appearance and cleanliness