Dennis is available for hire
Hire DennisDennis Lukas
Verified Expert in Engineering
Software Architect and Full-stack Developer
Vlaardingen, Netherlands
Toptal member since October 19, 2021
Bio
Dennis is an experienced software architect with an extensive background in full-stack development. He has acquired the expertise to create enterprise-grade ecosystems from scratch by participating in numerous commercial and government projects. As a certified Azure developer, Dennis is experienced in developing and architecting cloud solutions. He has been cultivating his expertise for the past seven years, gaining an opinionated preference using the Vue 3 and Nuxt stack.
Portfolio
Redacted
Azure, .NET, TypeScript, Azure DevOps, SQL, SignalR, Notification Hubs...
Stichting Open Nederland
.NET, Web API, Entity Framework, Azure, Azure DevOps, Vue, JavaScript...
Hafslund Eco
Python, Amazon Web Services (AWS), Pandas, SQL, Linux, Azure DevOps, Scrum...
Experience
- Vue - 8 years
- C# - 7 years
- JavaScript - 6 years
- Entity Framework - 4 years
- .NET - 4 years
- TypeScript - 3 years
- Scrum Master - 2 years
- Azure - 1 year
Availability
Full-time
Preferred Environment
.NET, Azure, Microsoft SQL Server, Vue, ASP.NET, Azure DevOps, TypeScript, JavaScript, MySQL, Nuxt.js
The most amazing...
...way Dennis has been able to develop himself as a T-shaped individual is sharing and utilizing his expertise both in production and managerial capacities.
Work Experience
Software Architect | Development Manager
2021 - PRESENT
Redacted
- Designed and developed a social platform that provides users with a qualitative way of meeting other people based on personal convictions, ideologies, and personalities.
- Architecturally designed and implemented the platform and led a dynamic team of professionals.
- Oversaw the entire SDLC, resulting in 15,000+ signups post-launch.
- Managed a team of varied skill-level professionals.
Technologies: Azure, .NET, TypeScript, Azure DevOps, SQL, SignalR, Notification Hubs, Microsoft Power BI, Management, Web Development, Software Design, DevOps, Leadership, Requirements Analysis, Azure SQL, Git, UI Design, Data Visualization, OpenAI, Data Science, API Development, Technical Leadership, REST APIs, Stripe API, Vue 3, Nuxt.js, Stripe, Firebase, Full-stack Development, Architecture, Databases, Deployment, Minimum Viable Product (MVP), Payment APIs, Progressive Web Applications (PWAs), CI/CD Pipelines, Auth0, OAuth 2, Multi-factor Authentication (MFA), Front-end Development, CSS3, HTML5, Vue Storefront, JSON, API Integration
Senior Full-stack (Vue.js & .NET) Developer
2021 - 2023
Stichting Open Nederland
- Designed and implemented a back end that managed everything related to the booking process, processing 2.5 million appointments during six months.
- Created and implemented a front end that provided a user-friendly interface to the back end mentioned above, including the accessibility features catered to the general public.
- Oversaw and managed the releases and deployments for the sprint iteration and hotfix releases.
- Managed the deployment pipeline to allow the team to work according to GitFlow.
- Undertook standby duty to assist and troubleshoot pressing matters.
- Assisted the team in solving bottlenecks during development, provided insight into the developer experience, and helped design a workflow best suited for the team's needs.
Technologies: .NET, Web API, Entity Framework, Azure, Azure DevOps, Vue, JavaScript, TypeScript, Microsoft SQL Server, APIs, Web Development, Software Design, DevOps, Leadership, Requirements Analysis, Azure SQL, Git, UI Design, Data Visualization, Data Science, API Development, Technical Leadership, REST APIs, Vue 3, Stripe, Firebase, Full-stack Development, Architecture, Databases, Deployment, Minimum Viable Product (MVP), Payment APIs, CI/CD Pipelines, OAuth 2, Front-end Development, CSS3, HTML5, Vue Storefront, JSON, API Integration
Senior Software Developer
2021 - 2021
Hafslund Eco
- Performed a technical assessment on an in-house-developed data broker application.
- Modernized and rearchitected the application mentioned above, making improvements regarding stability, performance, and maintainability.
- Supported the business in adopting the Agile way of working by teaching co-workers how to use Azure DevOps and introducing them to the change management processes.
Technologies: Python, Amazon Web Services (AWS), Pandas, SQL, Linux, Azure DevOps, Scrum, Agile, APIs, Web Development, Software Design, DevOps, Leadership, Requirements Analysis, Azure SQL, Git, Serverless, Data Science, API Development, Technical Leadership, REST APIs, Firebase, Full-stack Development, Architecture, Databases, Deployment, Minimum Viable Product (MVP), Payment APIs, Stripe, JSON, API Integration
Senior Full-stack (Vue.js & .NET) Developer
2020 - 2021
i-Sociaal
- Developed a proof-of-concept application that standardizes the contract agreements communicated between municipalities and healthcare providers.
- Communicated with the domain experts and business units, translating their needs to the business requirements and eventually work items.
- Demonstrated my improvements on a weekly and biweekly basis and presented the results of business analysis.
- Deployed the application to a production environment.
Technologies: .NET, ASP.NET, Entity Framework, HTML, CSS, JavaScript, jQuery, Razor Pages, Vue, Docker, Docker Compose, Azure, Azure DevOps, APIs, Web Development, Software Design, DevOps, Leadership, Requirements Analysis, Azure SQL, Git, Data Visualization, Data Science, API Development, Technical Leadership, REST APIs, Firebase, Full-stack Development, Architecture, Databases, Deployment, Minimum Viable Product (MVP), Payment APIs, Stripe, CI/CD Pipelines, OAuth 2, Front-end Development, CSS3, HTML5, Vue Storefront, JSON, API Integration
Senior Full-stack (Vue.js & .NET) Developer
2019 - 2020
Kamernet
- Developed and performed all the tasks related to Agile software development in a multidisciplinary Scrum team.
- Consulted on the architectural design concepts and helped to implement them.
- Developed an integrated DaaS module, aggregating data gathered by the platform over the years.
- Assisted the team in adopting the Agile way of working.
Technologies: .NET, ASP.NET MVC, Entity Framework, Microsoft SQL Server, HTML, CSS, JavaScript, jQuery, APIs, Web Development, Software Design, DevOps, Requirements Analysis, Azure SQL, Git, Data Science, API Development, REST APIs, Full-stack Development, Databases, Minimum Viable Product (MVP), CI/CD Pipelines, OAuth 2, Front-end Development, CSS3, HTML5, Vue Storefront, JSON, API Integration
Full-stack .NET Developer
2018 - 2019
Rexel Nederland
- Rearchitected an existing web service vital to providing an interface to the ERP system.
- Consulted on finding technological solutions based on issues the business was facing.
- Learned more about asynchronous computation and socket communication.
- Redesigned, designed, implemented, and optimized a complete project.
Technologies: WCF Web Services, .NET, Entity Framework, Microsoft SQL Server, Sockets, xUnit, APIs, Web Development, DevOps, Requirements Analysis, Azure SQL, Git, Data Visualization, Data Science, API Development, REST APIs, Full-stack Development, Databases, Minimum Viable Product (MVP), Front-end Development, CSS3, HTML5, JSON, API Integration
Developer
2016 - 2018
The Consultancy Firm
- Developed a change auditing system that helped users keep track of the changes made.
- Discussed and developed the deployment and implementation plan of a document fulfillment application.
- Assisted in shaping a new managed services product the company was designing.
Technologies: C#, ASP.NET, Entity Framework, HTML, CSS, SCSS, JavaScript, jQuery, APIs, Web Development, Requirements Analysis, Azure SQL, Git, Data Visualization, API Development, REST APIs, Databases, Front-end Development, CSS3, HTML5, JSON, API Integration
Front-end Developer
2016 - 2016
GPSFactory
- Performed all the tasks related to the customer and technical support.
- Carried out web tests when new deployments rolled out.
- Created a WordPress landing page to generate leads.
Technologies: HTML, C#, JavaScript, APIs, Web Development, Requirements Analysis, Git, Data Visualization, Front-end Development, CSS3, HTML5, JSON, API Integration
Experience
Testing for Entry Booking Platform
The Testing for Entry is a platform of the Open Netherlands Foundation (Stichting Open Nederland) aiming to reopen social life in the Netherlands.
I supported the team by providing expertise on developing a web application that allows citizens to book appointments with the local test providers. Tight deadlines and nationwide relevance shaped a paradigm where scalability, accuracy, security, and performance had to be exceptional without impacting the delivery rate of increments.
My role included:
• Creating the back end
• Setting up the infrastructure
• Deploying and optimizing the database
• Creating the user-friendly front end
I supported the team by providing expertise on developing a web application that allows citizens to book appointments with the local test providers. Tight deadlines and nationwide relevance shaped a paradigm where scalability, accuracy, security, and performance had to be exceptional without impacting the delivery rate of increments.
My role included:
• Creating the back end
• Setting up the infrastructure
• Deploying and optimizing the database
• Creating the user-friendly front end
Education
2015 - 2016
Progress towards a Bachelor’s Degree in Information Technologies
Rotterdam University of Applied Sciences - Rotterdam, Netherlands
Certifications
MARCH 2021 - PRESENT
Microsoft Azure Developer Associate
Microsoft
MAY 2020 - PRESENT
Professional Scrum Master I (PSM I)
Scrum.org
Skills
Libraries/APIs
Vue, Web API, Entity Framework, jQuery, API Development, REST APIs, Stripe API, Vue 3, Stripe, Pandas, Sockets, SignalR
Tools
Auth0, xUnit, Git, Terraform, Docker Compose, Microsoft Power BI
Languages
C#, JavaScript, HTML, CSS, C#.NET, CSS3, HTML5, TypeScript, Python, SQL, SCSS
Frameworks
.NET, ASP.NET, Razor Pages, ASP.NET MVC, .NET Core, OAuth 2, Scaled Agile Framework (SAFe), Nuxt.js
Paradigms
Requirements Analysis, Design Patterns, Azure DevOps, Agile, DevOps, UI Design, Scrum, Management
Platforms
Firebase, Azure, Docker, Amazon Web Services (AWS), Linux
Storage
Databases, JSON, Microsoft SQL Server, SQL Server 2014, Azure SQL, MySQL
Other
APIs, Full-stack, Full-stack Development, Web Development, Software Design, Data Visualization, Data Science, Technical Leadership, Minimum Viable Product (MVP), CI/CD Pipelines, Multi-factor Authentication (MFA), Front-end Development, Vue Storefront, User Experience (UX), API Integration, Scrum Master, WCF Web Services, Architecture, Leadership, Serverless, OpenAI, Deployment, Payment APIs, Progressive Web Applications (PWAs), Web Usability, Notification Hubs
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