Environment & Cleantech

Skilled professionals dedicated to innovative technologies and practices that reduce environmental impact and promote sustainability

Piotr Prus

Piotr Prus

I am an android developer with 5+ years of experience, addicted to new things. I love clean architecture and clean, simple designs. I am trying to create meaningful articles and speeches. Currently composing and KMMing all the things.

I am an android developer with 5+ years of experience, addicted to new things. I love clean architecture and clean, simple designs. I am trying to create meaningful articles and speeches. Currently composing and KMMing all the things. Show more

Srushti Raybhoge

Srushti Raybhoge

Fullstack enthusiast, who loves to learn new tech and trends. I am a GDE in Firebase and a Linkedin Top Voice in Software Development. As an active speaker, I am eager to share my knowledge with the world. I enjoy reading, dancing, and travelling in my free time.

Fullstack enthusiast, who loves to learn new tech and trends. I am a GDE in Firebase and a Linkedin Top Voice in Software Development. As an active speaker, I am eager to share my knowledge with the world. I enjoy reading, dancing, and travelling in ... Show more

Bert Fabry

Bert Fabry

As the Head of EMEA Operations at One Task, Bert leads the deployment of innovative camera systems designed to combat mobile phone usage while driving, combining his tech expertise with a strong commitment to road safety. He is also the founder of FabCore Consulting, where leadership, communication, and agile training and coaching are provided to organizations and individuals worldwide, fostering environments that emphasize empathy and efficiency.

An international speaker, he regularly shares his insights at conferences, engaging audiences with his deep knowledge in technology, leadership, and agile practices. With a background spanning the arts, technology, and international development, he draws on a diverse array of experiences to champion empathic leadership and continual learning. His journey through personal challenges has fueled his dedication to professional growth and making a meaningful impact.

Outside of work, he indulges in cooking and storytelling, enhancing life's flavor as a culinary enthusiast and a veteran tabletop roleplaying game master.

As the Head of EMEA Operations at One Task, Bert leads the deployment of innovative camera systems designed to combat mobile phone usage while driving, combining his tech expertise with a strong commitment to road safety. He is also the founder of Fa... Show more

Namrata Agrawal

Namrata Agrawal

Namrata is currently working as Power Platform Developer. She has previously worked in KPMG as a Full Stack Developer and was a Gold Microsoft Learn Student Ambassador.

Driving passion for Accessibility and Sustainability using AI and Technology around the World !
Beside work, enjoying being artistic and creative.

Namrata is currently working as Power Platform Developer. She has previously worked in KPMG as a Full Stack Developer and was a Gold Microsoft Learn Student Ambassador. Driving passion for Accessibility and Sustainability using AI and Technology a... Show more

William Rizzo

William Rizzo

William is a CNCF Ambassador and Linkerd Ambassador currently working at Mirantis as Strategy Lead. He’s focused on helping customers designing, building, and running their initiatives on Edge, AI and Platform Engineering. He wore many hats in the IT world, Engineering, Pre-Post sales, Product Owner and Consulting. from HPC, Storage to Distributed Systems.
William enjoys volunteering in several Cloud Native groups and organizing the KCD Netherlands events.

William is a CNCF Ambassador and Linkerd Ambassador currently working at Mirantis as Strategy Lead. He’s focused on helping customers designing, building, and running their initiatives on Edge, AI and Platform Engineering. He wore many hats in the IT... Show more

Francesco Fullone

Francesco Fullone

I'm Francesco Fullone, a business designer, consultant, and mentor and investor in technology companies focusing on sustainability or social impact.

I help companies (in any stage) to better define their business propositions to create options to validate them, and I advise them to organize themselves better to reach their goals.

I founded, and I contribute to Apropos, a company that helps communities, companies, and local groups organize events and workshops. If you attended an international conference about web technologies in Italy, you met me as a speaker, organizer, or attendee.

I founded companies such as Digitiamo to create NLP and AI-related products, Carma, to work on the next food technologies. In the past, Ideato, where I contributed to its growth for more than ten years, creating an innovative and quality reference for the development agencies in Italy.

I'm the president of the GrUSP, a no-profit association that encourages best practices in web development since 2002.

I'm Francesco Fullone, a business designer, consultant, and mentor and investor in technology companies focusing on sustainability or social impact. I help companies (in any stage) to better define their business propositions to create options to ... Show more

Jitendra Gupta

Jitendra Gupta

Jitendra Gupta is 13 years experienced IT professional with expertise in GenAI, information security and cloud computing. As a sought-after speaker, with a proven track record of implementing GenAI & security best practices in cloud environments, Jitendra is dedicated to empowering fellow IT professionals with actionable takeaways to safeguard their applications, data and infrastructure on Google Cloud.

Jitendra Gupta is 13 years experienced IT professional with expertise in GenAI, information security and cloud computing. As a sought-after speaker, with a proven track record of implementing GenAI & security best practices in cloud environments, Jit... Show more

Joe Griffin

Joe Griffin

My name’s Joe Griffin, and I’m CEO of proMX UK, a Microsoft Inner Circle partner within the proMX group of companies. I hold various Microsoft certifications in Dynamics CRM/365 Customer Engagement, Azure, Power BI and SQL Server and am also a PRINCE2 Project Manager and Agile Practitioner. I have a broad knowledge of working with and managing projects involving Dynamics 365 Customer Engagement, Azure, Power BI, .NET and other technologies within the Microsoft cloud stack. During this time, I’ve developed a keen interest in coding, and love working with Transact-SQL, JScript, PowerShell, DAX & C#. Thanks to my previous experience, I have practical knowledge operating within the energy efficiency, managed services, retail, print & direct mail and utility sectors. I love getting involved as part of the Business Applications technical community and was very fortunate to receive the Most Valuable Professional (MVP) award from Microsoft in 2020, in recognition of my contributions in this area. When I’m not blogging or tinkering, I enjoy reading, catching up on the latest films/TVs and also enjoy learning about and studying history.

My name’s Joe Griffin, and I’m CEO of proMX UK, a Microsoft Inner Circle partner within the proMX group of companies. I hold various Microsoft certifications in Dynamics CRM/365 Customer Engagement, Azure, Power BI and SQL Server and am also a PRINCE... Show more

Cephas Brian Mugisa

Cephas Brian Mugisa

Hello, it's Cephas here, I'm a software engineer with experience in cross-platform app development, and I'm also passionate about graphics and UX design. I love using my skills to create experiences that make people's lives better. Am glad you checked me out here!

Hello, it's Cephas here, I'm a software engineer with experience in cross-platform app development, and I'm also passionate about graphics and UX design. I love using my skills to create experiences that make people's lives better. Am glad you checke... Show more

Zed Spencer-Milnes

Zed Spencer-Milnes

I run Ziax, a studio that specialises in multiplayer gaming infrastructure. We run our own brand, CubeCraft Games, and work with other partner studios to provide technical services and infrastructure to support millions of players!

Outside of tech, I'm heavily involved in the sport of sailing (coaching / race management / governance) after being a competitive windsurfer when I was younger.
I also work within the UK Events industry in operations and event control roles.

I run Ziax, a studio that specialises in multiplayer gaming infrastructure. We run our own brand, CubeCraft Games, and work with other partner studios to provide technical services and infrastructure to support millions of players! Outside of tech... Show more

Aleksandar Totovic

Aleksandar Totovic

Aleksandar is a Principal Product Manager for Microsoft Dynamics 365 Business Central, where he leads the delivery of regulatory features and geo-expansion strategies. He also owns the E-Documents and Sustainability modules and is deeply focused on integrating AI Copilot and agentic experiences into Business Central. With over 40 years of experience in IT—primarily in ERP solutions—Aleksandar brings a wealth of knowledge and insight to his role. A former Dynamics NAV MVP, he is a seasoned speaker recognized for his contributions at international conferences.

Aleksandar is a Principal Product Manager for Microsoft Dynamics 365 Business Central, where he leads the delivery of regulatory features and geo-expansion strategies. He also owns the E-Documents and Sustainability modules and is deeply focused on i... Show more

Monika Rajput

Monika Rajput

Monika Rajput is a Senior Technical Consultant at Ahead, where she helps build real-world data and cloud solutions. Over the years, she’s worked with four early-stage startups, shaping products from idea to launch. Alongside her technical work, she’s passionate about helping others grow in tech. She has mentored over 200+ students and actively contributes to the community as a CNCF Ambassador and organiser of CNCF Gurugram.

Monika is also the founder of TMS: The Monika Rajput Stack, a podcast where she shares stories from the world of data, AI, and cloud, featuring people doing meaningful work in tech. She’s currently serving as a Program Committee Member for KubeCon + CloudNativeCon in China, Japan, and India. Her goal is to make technology more open, relatable, and accessible, especially for those who are just getting started.

Monika Rajput is a Senior Technical Consultant at Ahead, where she helps build real-world data and cloud solutions. Over the years, she’s worked with four early-stage startups, shaping products from idea to launch. Alongside her technical work, she’s... Show more

Charanpal Singh

Charanpal Singh

Charanpal Singh is a global strategist, mentor, and ecosystem builder with over a decade of experience in international relations, business development, Social Activities, Entrepreneurship and innovation. He has worked with leading institutions and corporations in Australia and India, including Vodafone, Coles, and Charles Darwin University, Basware, Teamlease EdTech, UPES where he specialized in global partnerships, student mobility, business development, sales & marketing, customer experience, relationship building, and many more fields.

As the Founder & CEO of the GORI Foundation, he is driving initiatives aligned with the UN Sustainable Development Goals, empowering students, educators, and communities. He actively mentors startups and innovators through the Ministry of Education’s Institution Innovation Council (India), Jagriti Enterprises, and other platforms, helping early-stage ventures shape their growth journey.

Charanpal is a recognized Innovation Ambassador, mentor, and evaluator for the Government of India’s entrepreneurship ecosystem, and regularly collaborates with universities worldwide to create opportunities for cross-cultural learning, student exchange, and knowledge transfer. He is also well-versed in emerging technologies, including Artificial Intelligence and other advanced digital solutions, bringing a tech-driven edge to his expertise. He has hands-on experience with Salesforce, Microsoft Office Suite, Google Workspace, Canva, WordPress, and a range of emerging AI tools such as ChatGPT Gamma, etc., leveraging these platforms to drive impact in business, education, and innovation.

A visionary thought leader at the intersection of education, entrepreneurship, and technology, he is passionate about building global bridges, enabling innovation-driven growth, and creating social impact at scale.

Charanpal Singh is a global strategist, mentor, and ecosystem builder with over a decade of experience in international relations, business development, Social Activities, Entrepreneurship and innovation. He has worked with leading institutions and c... Show more

Gayathri Devi Srinivasan

Gayathri Devi Srinivasan

I am an accomplished speaker and presenter with a passion for sharing my knowledge and expertise with others.

As an active contributor to several open-source communities, I have delivered talks and hands-on sessions in a variety of tech stacks, including Flutter and Dart. I believe that open source is the future of software development, and I am committed to making a positive impact in this space through my contributions and speaking engagements.

In addition to my open source work, I bring a wealth of experience in business development, strategic planning, and project management to the table. I am a strategic thinker with a strong ability to identify new business opportunities and deliver impactful results, and I have a proven track record of success in both start-up and established environments.

Overall, I am excited to continue pursuing my career as a speaker and presenter, and I look forward to the opportunity to share my insights and expertise with your audience.

I am an accomplished speaker and presenter with a passion for sharing my knowledge and expertise with others. As an active contributor to several open-source communities, I have delivered talks and hands-on sessions in a variety of tech stacks, in... Show more

Jamie Coleman

Jamie Coleman

Jamie is a Senior Developer Advocate for Loqate formally at IBM & Sonatype, based in the UK. He has had the privilege to have spoken all around the world at developer conferences and is an organiser of London’s biggest developer community, the London Java Community.

Passionate about discovering ways to help reduce developers carbon footprint, he is also a subject matter expert in containerised solutions and build technologies. He fell in love with coding at university and has gone on to talk at many conferences about using languages like Java with microservices and related technologies such as AI and software security. He has worked on a wide variety of projects such as modernising IBMs mainframe testing infrastructure, creating, and automating the creation of Docker images for IBM’s products and contributing to a DevOps pipeline offering.

Jamie is a Senior Developer Advocate for Loqate formally at IBM & Sonatype, based in the UK. He has had the privilege to have spoken all around the world at developer conferences and is an organiser of London’s biggest developer community, the London... Show more

Andres Sepulveda Morales

Andres Sepulveda Morales

Andres Sepulveda Morales is a recovering corporate software engineer with 8+ years of experience who is dedicated to the community through technology. Andres has been recognized twice in 2025 as one of Contra’s Best Software Consultants to Hire, as well as through expert and mentor programs for AI tools like Bolt.new, Agent.so, and MagicPath. He now leads human-focused technology implementation for impact makers and barrier breakers via his company, Red Mage. Andres founded the Fort Collins AI for Everyone chapter of the Rocky Mountain AI Interest Group in September 2024 and serves as Treasurer on the Board of Directors for Rocky Mountain AI , a 501(c)(3) Colorado nonprofit advancing education and the community in understanding AI for 6400+ participants at 200+ events in 2025 alone across 11 subgroups in Boulder, Fort Collins, and Denver.

Andres Sepulveda Morales is a recovering corporate software engineer with 8+ years of experience who is dedicated to the community through technology. Andres has been recognized twice in 2025 as one of Contra’s Best Software Consultants to Hire, as w... Show more

Matt "Kelly" Williams

Matt "Kelly" Williams

Matt "Kelly" Williams is the founder of Making Software Greener, the CEO of the Sustainable IT Manifesto Foundation, advisory board member for the Green Computing Foundation, and a speaker and mentor on IT practices including DevOps, Cloud Computing, and mental health advocacy. He has always wanted to be a Renaissance person; perhaps one day he will be. In the meantime, he explores IT Sustainability, is learning photography, designs tabletop games, reads, weaves, cooks, hacks, and explores the mountains near Loveland, Colorado.

Matt "Kelly" Williams is the founder of Making Software Greener, the CEO of the Sustainable IT Manifesto Foundation, advisory board member for the Green Computing Foundation, and a speaker and mentor on IT practices including DevOps, Cloud Computing... Show more

Devang Shah

Devang Shah

Devang is a Principal Program Manager specializing in working on terabyte to petabyte-scale big data analytics projects in the EMEA region. He specializes in product innovation, product evangelization, community building, and product adoption strategies. With a strong educational and professional background in technology, software development, cloud adoption, and data analytics, he has spent the last decade advising clients on implementing large-scale and complex software systems, and data analytics solutions. Devang has been involved in producing training content, and tutorials for Microsoft Fabric experiences.

Devang is a Principal Program Manager specializing in working on terabyte to petabyte-scale big data analytics projects in the EMEA region. He specializes in product innovation, product evangelization, community building, and product adoption strateg... Show more

Taylor Troesh

Taylor Troesh

Taylor tinkers with writing, learning, time, design, software, ideas, humor, and entrepreneurship.

Taylor tinkers with writing, learning, time, design, software, ideas, humor, and entrepreneurship. Show more

Steeve Evers

Steeve Evers

Agile Coach for over 15 years, I help teams, leaders, and organizations grow through transformation. I explore the intersections of agility, systems thinking, ecology, frugal innovation, and foresight. Passionate about storytelling and community-building, I design meaningful learning experiences to spark collective talent and long-term impact. I also steward a community of agilists and nurture regenerative practices.

Agile Coach for over 15 years, I help teams, leaders, and organizations grow through transformation. I explore the intersections of agility, systems thinking, ecology, frugal innovation, and foresight. Passionate about storytelling and community-buil... Show more

Benjamin Couet

Benjamin Couet

Coach agile, coach professionnel, et formateur, je capitalise sur 16 ans d'expérience dans les environnements IT et agiles pour accompagner les individus, les équipes et les organisations dans leur transformation.
Mon approche, systémique, combine accompagnement opérationnel des équipes, accompagnement des leaders, et accompagnement stratégique au niveau organisationnel.
Curieux, engagé, je m’implique activement dans les communautés pour partager et apprendre.

Coach agile, coach professionnel, et formateur, je capitalise sur 16 ans d'expérience dans les environnements IT et agiles pour accompagner les individus, les équipes et les organisations dans leur transformation. Mon approche, systémique, combine a... Show more

Carl Sargunar

Carl Sargunar

I've been building websites and apps for various clients for the last 20 years, from running agencies to direct clients, and generally integrating the heck out of systems. I enjoy learning new things and sharing what I've learnt, and I organise the Bristol and South West .NET Meetup, as well as the DDD South West Conference.

I've been building websites and apps for various clients for the last 20 years, from running agencies to direct clients, and generally integrating the heck out of systems. I enjoy learning new things and sharing what I've learnt, and I organise the B... Show more

Shivji Kumar Jha

Shivji Kumar Jha

Shivji Kumar Jha is a Staff Engineer at Nutanix, where he leads the charter for analytics, time-series, and streaming platforms across cloud and on-prem environments. He focuses on building scalable ingestion systems and designing high-performance OLAP architectures, with deep hands-on experience extending ClickHouse for production-grade analytics. A contributor to Apache Pulsar, MySQL, and ClickHouse, Shiv approaches distributed systems as a builder—prototyping core components, shaping system design, and driving platform evolution from the ground up.

Beyond engineering, Shiv is an active community leader and speaker. He has delivered 30+ talks at conferences including ApacheCon, KubeCon + CloudNativeCon, and Postgres community events. He also curates deep-tech meetups in Bangalore, bringing together practitioners passionate about databases, streaming systems, and open-source infrastructure

Shivji Kumar Jha is a Staff Engineer at Nutanix, where he leads the charter for analytics, time-series, and streaming platforms across cloud and on-prem environments. He focuses on building scalable ingestion systems and designing high-performance OL... Show more

Armagan Karatosun

Armagan Karatosun

Armagan Karatosun (He/him), holds an MSc in High-Performance Computing from Istanbul Technical University with 8+ years of industry experience. As a Cloud Data Services Expert at EUMETSAT, he specializes in crafting cloud-based solutions. His focus is on creating resilient and event-driven infrastructure tailored for advanced applications like AI/ML and high-performance workloads. He is an expert in cloud technologies, particularly Kubernetes and OpenStack.

Armagan Karatosun (He/him), holds an MSc in High-Performance Computing from Istanbul Technical University with 8+ years of industry experience. As a Cloud Data Services Expert at EUMETSAT, he specializes in crafting cloud-based solutions. His focus i... Show more

Jan Schneider

Jan Schneider

Jan has extensive experience in combining agile collaboration, user experience design, and future foresight, and has studied the Internet of Things. He aims for valuable outcomes as a team, prioritizes collaborative workshops, and pays attention to the details that make a difference.

Jan has extensive experience in combining agile collaboration, user experience design, and future foresight, and has studied the Internet of Things. He aims for valuable outcomes as a team, prioritizes collaborative workshops, and pays attention to t... Show more

Ralf Richter

Ralf Richter

Ralf Richter is a renowned IT expert with over two decades of professional experience, specializing in cloud technologies. He has demonstrated his expertise across various industries, including medical technology, finance, automotive, and manufacturing. As a consultant, Ralf has worked on cloud projects at various levels, from strategic to methodical aspects, advising both executive boards and developer teams.

Ralf has been repeatedly honored as a Microsoft Most Valuable Professional (MVP), underscoring his profound knowledge and significant contribution to the IT community. He serves as a Cloud Solution Architect and is also active as a coach and trainer for cloud and software technologies. Ralf is known for always being at the forefront of technology, particularly in the field of artificial intelligence, where he develops and implements innovative solutions.

Additionally, Ralf engages as a Community Leader, where he shares his knowledge and acts as a mentor for emerging professionals in the technology sector. His commitment and expertise make him a key figure in the world of IT and cloud technology.

Ralf Richter is a renowned IT expert with over two decades of professional experience, specializing in cloud technologies. He has demonstrated his expertise across various industries, including medical technology, finance, automotive, and manufacturi... Show more

Deepak John Reji

Deepak John Reji

Deepak John Reji is an experienced NLP practitioner and researcher who specializes in developing and designing solutions for data science products. He is passionate about domain-centric data science development and advocates for responsible and ethical AI development. Deepak enjoys working with social science and environmental data and creates videos showcasing various prototypes and AI tutorials. Additionally, he hosts the D4 Data Channel podcast, where he interviews industry experts and academicians in the fields of Data Science and Sustainability.

Deepak strongly believes in the power of open source and the democratization of AI. He actively contributes to open-source projects and shares his models and packages in Huggingface and PyPI repositories. His recent research focuses on Immigration and Integration Research, as well as studying human and community interactions in third places using AI and data.

Linkedin: https://www.linkedin.com/in/deepak-john-reji/
Youtube: https://www.youtube.com/@deepakjohnreji
Google Scholar: https://scholar.google.com/citations?user=4azuuXAAAAAJ&hl=en

Deepak John Reji is an experienced NLP practitioner and researcher who specializes in developing and designing solutions for data science products. He is passionate about domain-centric data science development and advocates for responsible and ethic... Show more

Celestina Amadi

Celestina Amadi

Celestina is a Cloud Engineer passionate about sharing knowledge and empowering teams to implement scalable and compliant infrastructure.

Celestina is a Cloud Engineer passionate about sharing knowledge and empowering teams to implement scalable and compliant infrastructure. Show more

Daniel Binggeli

Daniel Binggeli

Daniel Binggeli is the CTO at Puzzle ITC, an open-source-driven company, where he brings over 20 years of experience in the IT industry. With expertise in software development, architecture, and Platform Engineering, Daniel is passionate about how technical innovation can align with organizational transformation to empower teams and streamline operations.

What sets Daniel apart is his ability to connect and navigate across a diverse range of topics. From AI to sustainability in IT, and from his role as a hands-on CTO to his life as a dedicated family man and self-sufficient homesteader, Daniel thrives at the intersection of seemingly contrasting domains. This broad perspective allows him to approach challenges with creativity and balance, leveraging insights from all aspects of his life.

Throughout his career, Daniel has taken on roles such as developer, architect, and team lead, providing him with a well-rounded understanding of the software development lifecycle and operational dynamics. His blend of technical depth, leadership, and versatility makes him a driving force for impactful and sustainable solutions, both in technology and beyond.

Daniel Binggeli is the CTO at Puzzle ITC, an open-source-driven company, where he brings over 20 years of experience in the IT industry. With expertise in software development, architecture, and Platform Engineering, Daniel is passionate about how te... Show more

Balogun David Taiwo

Balogun David Taiwo

With over 4 years of experience in the tech and data analytics space, I have contributed significantly to innovative fintech startups across Africa and currently work with a leading fintech company. Beyond my professional role, I am passionate about mentoring and teaching aspiring data professionals. I have collaborated with esteemed edtech organizations such as Tech4Dev and Niyo BootCamp, and have taught over 3,000 students across Africa and the United Kingdom. Additionally, I have worked on impactful data analytics projects with Nasarawa State, FCMB among others, driving data-driven decision-making and innovation. My dedication to continuous learning and community engagement underscores my commitment to advancing the field of data analytics.

With over 4 years of experience in the tech and data analytics space, I have contributed significantly to innovative fintech startups across Africa and currently work with a leading fintech company. Beyond my professional role, I am passionate about ... Show more

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