Browse Freelancers
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Expert in: Acapella, Backing Vocal, Freelance Gig + 8 more
Andrew Paterson is a singer, double-bass player, music arranger and choral director from Manchester, UK.
With over 30 years experience of singing and playing at a high level, Andrew plays double bass (jazz and classical) and has a wide enough vocal range to sing most tenor or bass parts.
He also loves arranging his favourite music, having particular interests in choral music, brass ensembles, jazz, and making performable English translations of obscure folk fusion songs.…Andrew Paterson is a singer, double-bass player, music arranger and choral director from Manchester, UK.
With over 30 years experience of singing and playing at a high level, Andrew plays double bass (jazz and classical) and has a wide enough vocal range to sing most tenor or bass parts.
He also loves arranging his favourite music, having particular interests in choral music, brass ensembles, jazz, and making performable English translations of obscure folk fusion songs.WWWW…
More info Expert in: React Native, JavaScript, React JS + 4 more
Hi, I'm Jeanlouis! I have a strong background in computer science and a passion for building mobile and web applications. I enjoy creating efficient and user-friendly software solutions, especially using React Native and Typescript. Throughout my career, I've worked on projects ranging from financial asset management apps to improving order processes for kitchen staff and developing and publishing privacy tools like metadata viewer/editor.
I believe in continuous learning and love collaborating with teams to deliver high-quality products. In my spare time, I dive deeper into the world of cybersecurity, privacy and blockchain.…Hi, I'm Jeanlouis! I have a strong background in computer science and a passion for building mobile and web applications. I enjoy creating efficient and user-friendly software solutions, especially using React Native and Typescript. Throughout my career, I've worked on projects ranging from financial asset management apps to improving order processes for kitchen staff and developing and publishing privacy tools like metadata viewer/editor.
I believe in continuous learning and love collaborating with teams to deliver high-quality products. In my spare time, I dive deeper into the world of cybersecurity, privacy and blockchain.WWWW…
More info Expert in: Python, C++, Docker + 7 more
Hi, I'm Dung Vo, a PhD candidate in Computer Science at Wayne State University in Detroit. My research focuses on multi-agent systems, natural language processing, and AI-driven production systems, with an emphasis on applying theory to real-world problems. I enjoy building scalable ML pipelines and translating research insights into practical solutions.
I have industry experience as a Data Scientist and AI researcher across Singapore and Vietnam, where I developed dynamic pricing systems, real-time data pipelines, and ML deployment processes. I’m driven by collaborations across disciplines and a hands-on approach to turning ideas into impactful products.…Hi, I'm Dung Vo, a PhD candidate in Computer Science at Wayne State University in Detroit. My research focuses on multi-agent systems, natural language processing, and AI-driven production systems, with an emphasis on applying theory to real-world problems. I enjoy building scalable ML pipelines and translating research insights into practical solutions.
I have industry experience as a Data Scientist and AI researcher across Singapore and Vietnam, where I developed dynamic pricing systems, real-time data pipelines, and ML deployment processes. I’m driven by collaborations across disciplines and a hands-on approach to turning ideas into impactful products.WWWW…
More info Expert in: Kubernetes, AWS, Docker + 10 more
Hello! I'm Hafeez Ur Rehman, a results-driven DevOps Engineer with 12 years of IT experience, including 7 years in DevOps/SysOps and 5 years in Network Systems. I lead agile teams in deploying and managing multi-cloud applications on AWS, GCP, and Azure, with expertise in IaC, CI/CD, Kubernetes, and cloud-native architecture. I also design and implement MLOps pipelines for model training, versioning, and deployment, and I focus on security hardening, disaster recovery, and cost optimization to deliver reliable, high-performance systems. I thrive in fintech, healthcare, e-commerce, and gaming environments across Europe, the United States, and Canada, collaborating with cross-functional teams via Slack, Teams, Jira, Confluence, and GitHub/GitLab.
Passionate about building scalable, secure, and observable distributed systems, I continuously pursue excellence in automation, testing, and performance tuning to reduce latency and costs while improving reliability.…Hello! I'm Hafeez Ur Rehman, a results-driven DevOps Engineer with 12 years of IT experience, including 7 years in DevOps/SysOps and 5 years in Network Systems. I lead agile teams in deploying and managing multi-cloud applications on AWS, GCP, and Azure, with expertise in IaC, CI/CD, Kubernetes, and cloud-native architecture. I also design and implement MLOps pipelines for model training, versioning, and deployment, and I focus on security hardening, disaster recovery, and cost optimization to deliver reliable, high-performance systems. I thrive in fintech, healthcare, e-commerce, and gaming environments across Europe, the United States, and Canada, collaborating with cross-functional teams via Slack, Teams, Jira, Confluence, and GitHub/GitLab.
Passionate about building scalable, secure, and observable distributed systems, I continuously pursue excellence in automation, testing, and performance tuning to reduce latency and costs while improving reliability.WWWW…
More info Expert in: Web Design, Microsoft Office, Microsoft Excel + 13 more
I am a full-stack and DevOps engineer who ships production systems that stay fast, secure, and easy to operate. I build with Python, Django, FastAPI, React, and Angular, and I run those services on AWS with Docker, Kubernetes, Terraform, and strong CI/CD.
I have delivered secure REST APIs and responsive front ends for analytics, education, and startup products. I designed AWS foundations with Terraform, automated releases with GitHub Actions and GitLab CI, and hardened platforms with least-privilege IAM and image scanning. I improved reliability with EKS, ECS, and serverless patterns on API Gateway, Lambda, SQS, and EventBridge. I raised observability with Prometheus, Grafana, Fluentd, and Datadog so teams can find and fix issues quickly.
Previously, I upgraded a large Django platform from Python 2 to Python 3 and containerized services on AWS EKS. I led the development of a fire reporting platform using Django, Redis, and PostgreSQL, which automated manual tasks and generated accurate reports. I built micro-frontend modules with Angular and Module Federation and shipped PrimeNG-based admin tooling that simplified operations.
What sets me apart is the blend of platform ownership and product delivery. I manage roadmaps, mentor teammates, and keep pipelines lean. I document decisions, align stakeholders, and move features from idea to stable release. I hold certifications in CKAD, AWS, and SnowPro Core, and I continue to learn. If your stack leans on a tool I haven’t used, I pick it up quickly and deliver to your standards.…I am a full-stack and DevOps engineer who ships production systems that stay fast, secure, and easy to operate. I build with Python, Django, FastAPI, React, and Angular, and I run those services on AWS with Docker, Kubernetes, Terraform, and strong CI/CD.
I have delivered secure REST APIs and responsive front ends for analytics, education, and startup products. I designed AWS foundations with Terraform, automated releases with GitHub Actions and GitLab CI, and hardened platforms with least-privilege IAM and image scanning. I improved reliability with EKS, ECS, and serverless patterns on API Gateway, Lambda, SQS, and EventBridge. I raised observability with Prometheus, Grafana, Fluentd, and Datadog so teams can find and fix issues quickly.
Previously, I upgraded a large Django platform from Python 2 to Python 3 and containerized services on AWS EKS. I led the development of a fire reporting platform using Django, Redis, and PostgreSQL, which automated manual tasks and generated accurate reports. I built micro-frontend modules with Angular and Module Federation and shipped PrimeNG-based admin tooling that simplified operations.
What sets me apart is the blend of platform ownership and product delivery. I manage roadmaps, mentor teammates, and keep pipelines lean. I document decisions, align stakeholders, and move features from idea to stable release. I hold certifications in CKAD, AWS, and SnowPro Core, and I continue to learn. If your stack leans on a tool I haven’t used, I pick it up quickly and deliver to your standards.WWWW…
More info Expert in: Python, SQL, Docker + 19 more
I am a highly motivated AI Engineer with extensive experience designing and deploying end-to-end LLM/RAG systems, data automation, and MLOps across large-scale datasets. I excel at delivering production-grade NLP and automation solutions that are secure, scalable, and adaptable to diverse domains. I continuously research and incorporate new AI trends to drive impactful outcomes for real-world problems.
I thrive in cross-functional environments, translating complex business needs into robust AI architectures and deployable pipelines. My approach emphasizes reliability, security, and collaboration to deliver practical AI solutions that scale with organizational goals.…I am a highly motivated AI Engineer with extensive experience designing and deploying end-to-end LLM/RAG systems, data automation, and MLOps across large-scale datasets. I excel at delivering production-grade NLP and automation solutions that are secure, scalable, and adaptable to diverse domains. I continuously research and incorporate new AI trends to drive impactful outcomes for real-world problems.
I thrive in cross-functional environments, translating complex business needs into robust AI architectures and deployable pipelines. My approach emphasizes reliability, security, and collaboration to deliver practical AI solutions that scale with organizational goals.WWWW…
More info Expert in: Java, JavaScript, C++ + 11 more
With over 15 years of experience, I have participated in all phases of software development, both traditional and agile, in addition to a solid working knowledge of algorithms and data structures.
I am innovative and constantly seeking improvements to optimize workflows and processes.…With over 15 years of experience, I have participated in all phases of software development, both traditional and agile, in addition to a solid working knowledge of algorithms and data structures.
I am innovative and constantly seeking improvements to optimize workflows and processes.WWWW…
More info Expert in: bash, Claude, Node.js + 15 more
I'm an experienced Application Development Manager and full-stack/back-end developer with strong expertise in PHP (Laravel), JavaScript, CSS3, HTML5, and related web technologies. I build scalable backends, CMS, APIs, and integrations for real-world applications.
Currently, I lead application development initiatives for a major UK broadband/fibre infrastructure provider and maintain independent projects. I'm open to remote, contract, part-time, freelance, or hourly opportunities and enjoy delivering value efficiently across front-end, back-end, and full-stack work.…I'm an experienced Application Development Manager and full-stack/back-end developer with strong expertise in PHP (Laravel), JavaScript, CSS3, HTML5, and related web technologies. I build scalable backends, CMS, APIs, and integrations for real-world applications.
Currently, I lead application development initiatives for a major UK broadband/fibre infrastructure provider and maintain independent projects. I'm open to remote, contract, part-time, freelance, or hourly opportunities and enjoy delivering value efficiently across front-end, back-end, and full-stack work.WWWW…
More info Expert in: JavaScript, TypeScript, Node.js + 9 more
Software Developer and Sysadmin, I build efficient software in a secure environment! Being in IT since many years, I have a strong understanding the full stack, from low level programming to Kubernetes and Linux, as well as web development. I've successfully completed many IT projects for my previous employers and now I want to solve other real world problems as a freelancer. Also I invoice results, not hours! We agree on the desired deliverables and then we fix their prices in advance. Right now I offer a starter rate as I just began freelancing!
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- ERP development
There was an ERP developed on FileMaker, but it was increasingly showing its limitations. Regularly overloaded with a database that was becoming increasingly difficult to manage, it became urgent to replace it. My role was project manager and developer.
- QlikView dashboards
Dashboards accessible from QlikView software should enable detailed analysis of the company's performance indicators. My role was project manager and developer.
- Web dashboards
As the QlikView license was expensive, it was decided to redevelop the dashboards using open-source technologies. My role was project manager and developer.
- Accounting module
Automatically retrieve supplier and customer invoices in order to allocate the amounts to the correct accounting accounts. After that, it was necessary to check that the accounts were correct. My role was project manager and developer.
- Interfacing with logistics
Development of an ERP system for logistics and interfacing with administration to enable the most automated invoicing of deliveries possible. My role was project manager and developer.
- Order and delivery management
The logistics department had a second client that needed its own platform because order management was too different. My role was project manager and developer.
- Tour management
Application for organizing distribution routes. My role was project manager and developer.
- Migrating from Jest to Vitest
Migrated the application's unit tests from Jest to Vitest and from jsdom to happy-dom. I was responsible for the migration.
- End-to-end testing
Added end-to-end testing to the application. My role was to set up the first e2e tests.
- Electronic signature
Enable PDFs to be signed electronically from the platform interface with an advanced or qualified signature level. My role was to set up the minimum product in collaboration with a colleague.
- Migration from Angular to React
Migrate web application pages from Angular to React. My role was Fullstack Developer.
- Personal projects
In my spare time, I enjoy developing personal projects of varying sizes and in different languages. These range from a website for my wife's institute to algorithms to familiarize myself with new technologies and longer-term projects (>812 challenges solved)…Software Developer and Sysadmin, I build efficient software in a secure environment! Being in IT since many years, I have a strong understanding the full stack, from low level programming to Kubernetes and Linux, as well as web development. I've successfully completed many IT projects for my previous employers and now I want to solve other real world problems as a freelancer. Also I invoice results, not hours! We agree on the desired deliverables and then we fix their prices in advance. Right now I offer a starter rate as I just began freelancing!
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- ERP development
There was an ERP developed on FileMaker, but it was increasingly showing its limitations. Regularly overloaded with a database that was becoming increasingly difficult to manage, it became urgent to replace it. My role was project manager and developer.
- QlikView dashboards
Dashboards accessible from QlikView software should enable detailed analysis of the company's performance indicators. My role was project manager and developer.
- Web dashboards
As the QlikView license was expensive, it was decided to redevelop the dashboards using open-source technologies. My role was project manager and developer.
- Accounting module
Automatically retrieve supplier and customer invoices in order to allocate the amounts to the correct accounting accounts. After that, it was necessary to check that the accounts were correct. My role was project manager and developer.
- Interfacing with logistics
Development of an ERP system for logistics and interfacing with administration to enable the most automated invoicing of deliveries possible. My role was project manager and developer.
- Order and delivery management
The logistics department had a second client that needed its own platform because order management was too different. My role was project manager and developer.
- Tour management
Application for organizing distribution routes. My role was project manager and developer.
- Migrating from Jest to Vitest
Migrated the application's unit tests from Jest to Vitest and from jsdom to happy-dom. I was responsible for the migration.
- End-to-end testing
Added end-to-end testing to the application. My role was to set up the first e2e tests.
- Electronic signature
Enable PDFs to be signed electronically from the platform interface with an advanced or qualified signature level. My role was to set up the minimum product in collaboration with a colleague.
- Migration from Angular to React
Migrate web application pages from Angular to React. My role was Fullstack Developer.
- Personal projects
In my spare time, I enjoy developing personal projects of varying sizes and in different languages. These range from a website for my wife's institute to algorithms to familiarize myself with new technologies and longer-term projects (>812 challenges solved)WWWW…
More info Expert in: AWS, Azure, Docker
I'm Ruan Steyn, a DevOps Engineer and freelance consultant specializing in Cloud and Infrastructure Automation. Based in Rotkreuz, Switzerland, I help organizations automate cloud accounts, build reusable templates, and implement self-service platforms to speed up delivery while improving security and governance. I enjoy turning complex infrastructure into reliable, scalable services using IaC, configuration management, and container orchestration.
Over the past decade I have designed and implemented vRealize Automation deployments, Tanzu namespace governance, and large-scale VM migrations. I mentor junior engineers, collaborate with cross-functional teams, and continuously optimize platforms to reduce manual effort and enable self-service for DevOps teams.…I'm Ruan Steyn, a DevOps Engineer and freelance consultant specializing in Cloud and Infrastructure Automation. Based in Rotkreuz, Switzerland, I help organizations automate cloud accounts, build reusable templates, and implement self-service platforms to speed up delivery while improving security and governance. I enjoy turning complex infrastructure into reliable, scalable services using IaC, configuration management, and container orchestration.
Over the past decade I have designed and implemented vRealize Automation deployments, Tanzu namespace governance, and large-scale VM migrations. I mentor junior engineers, collaborate with cross-functional teams, and continuously optimize platforms to reduce manual effort and enable self-service for DevOps teams.WWWW…
More info Expert in: PyTorch, Python, Docker + 8 more
Fabian Vakhidi is a Data Engineer and AI specialist with over four years of experience building enterprise software, machine learning systems, and large-scale cloud platforms. Currently at Cegal, he designs and implements scalable, cloud-native data solutions for oil & gas and energy clients, with strong expertise in Microsoft Azure, Microsoft Fabric, event-driven architectures, and AI-enabled data platforms.
With an MSc in Mechanical Engineering (Robotics and AI) from NTNU, Fabian combines a rigorous engineering foundation with deep applied knowledge in machine learning, computer vision, and production-grade ML systems. He has led ML integrations in SAP environments, built RAG pipelines using high-performance vector stores, and deployed GPT-based solutions for enterprise automation.
His background spans real-time systems, HPC workflows, DevOps, and API-first architectures, enabling him to deliver reliable, scalable, and cost-efficient solutions in complex environments. Fabian operates at the intersection of data engineering, AI systems, and enterprise architecture, focused on building robust foundations for advanced analytics and intelligent automation.…Fabian Vakhidi is a Data Engineer and AI specialist with over four years of experience building enterprise software, machine learning systems, and large-scale cloud platforms. Currently at Cegal, he designs and implements scalable, cloud-native data solutions for oil & gas and energy clients, with strong expertise in Microsoft Azure, Microsoft Fabric, event-driven architectures, and AI-enabled data platforms.
With an MSc in Mechanical Engineering (Robotics and AI) from NTNU, Fabian combines a rigorous engineering foundation with deep applied knowledge in machine learning, computer vision, and production-grade ML systems. He has led ML integrations in SAP environments, built RAG pipelines using high-performance vector stores, and deployed GPT-based solutions for enterprise automation.
His background spans real-time systems, HPC workflows, DevOps, and API-first architectures, enabling him to deliver reliable, scalable, and cost-efficient solutions in complex environments. Fabian operates at the intersection of data engineering, AI systems, and enterprise architecture, focused on building robust foundations for advanced analytics and intelligent automation.WWWW…
More info Expert in: TypeScript, JavaScript, Python + 15 more
I'm a full-stack developer with broad experience across backend systems, frontend development, and IT infrastructure. I enjoy building robust backends and delightful frontends, and I thrive on solving hard problems with code.
I'm currently building and evaluating LLM-powered systems at DataAnnotation, with deep hands-on experience in Node.js, TypeScript, and Python. I aim to contribute across the stack on a product team and grow into deeper product ownership.…I'm a full-stack developer with broad experience across backend systems, frontend development, and IT infrastructure. I enjoy building robust backends and delightful frontends, and I thrive on solving hard problems with code.
I'm currently building and evaluating LLM-powered systems at DataAnnotation, with deep hands-on experience in Node.js, TypeScript, and Python. I aim to contribute across the stack on a product team and grow into deeper product ownership.WWWW…
More info Expert in: C#, bash, C++ + 10 more
I'm a multidisciplinary professional with 10 years of experience in Systems Administration, DevOps, AI programming, and Game Development. My career blends technical expertise, creativity, and innovation, allowing me to design, build, and optimize complex systems across different technological domains.
Innovator by Nature: I’m passionate about solving problems—if a solution doesn’t exist, I build it. I enjoy merging creativity with technology to develop efficient, original, and forward-thinking solutions. Always eager to learn, experiment, and push boundaries, I bring a mindset of constant improvement and a genuine enthusiasm for shaping the future through technology.…I'm a multidisciplinary professional with 10 years of experience in Systems Administration, DevOps, AI programming, and Game Development. My career blends technical expertise, creativity, and innovation, allowing me to design, build, and optimize complex systems across different technological domains.
Innovator by Nature: I’m passionate about solving problems—if a solution doesn’t exist, I build it. I enjoy merging creativity with technology to develop efficient, original, and forward-thinking solutions. Always eager to learn, experiment, and push boundaries, I bring a mindset of constant improvement and a genuine enthusiasm for shaping the future through technology.WWWW…
More info Expert in: AWS, Azure, Docker + 6 more
I’m a security engineer based out of Tokyo, Japan.
I’ve been working in DevSecOps for the past 4 years with rich theoretical background in Computer Science and extensive experience with Computer systems & CI/CD environments.…I’m a security engineer based out of Tokyo, Japan.
I’ve been working in DevSecOps for the past 4 years with rich theoretical background in Computer Science and extensive experience with Computer systems & CI/CD environments.WWWW…
More info Expert in: Docker, Bash, MariaDB
DevOps Engineer / Certified Linux Architect with over 20 years of hands-on experience in large-scale infrastructure management, automation, and DevOps engineering. Proactive and solutions-focused professional with deep expertise in Ansible, Terraform, AWS, CI/CD, Kubernetes, and OpenShift. Skilled in designing resilient systems and automating workflows for hybrid on-prem and cloud environments. Proficient in Bash, Go, Python, and PHP scripting, with proven success in building CLI tools, Infrastructure-As-Code pipelines, and monitoring frameworks. Extensive experience across Red Hat Enterprise Linux, SUSE Linux Enterprise Server, and Ubuntu, with a strong focus on system reliability, patch management, and performance optimization.…DevOps Engineer / Certified Linux Architect with over 20 years of hands-on experience in large-scale infrastructure management, automation, and DevOps engineering. Proactive and solutions-focused professional with deep expertise in Ansible, Terraform, AWS, CI/CD, Kubernetes, and OpenShift. Skilled in designing resilient systems and automating workflows for hybrid on-prem and cloud environments. Proficient in Bash, Go, Python, and PHP scripting, with proven success in building CLI tools, Infrastructure-As-Code pipelines, and monitoring frameworks. Extensive experience across Red Hat Enterprise Linux, SUSE Linux Enterprise Server, and Ubuntu, with a strong focus on system reliability, patch management, and performance optimization.WWWW…
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