Samson - FullStack development
Technologies:
NodeJS 20, Typescript, Angular 15/16, AWS Cloud (ECS / Kubernetes), MongoDB / DocumentDB, Git, Jira
Custom-Built Software - Professional Expertise Delivering Reliable Outcomes
My name is Oliver Kiessler. I'm a freelance Fullstack Software Developer working with clients across Germany and beyond, specializing in modern web and AWS cloud applications. I work independently on freelance projects or support companies as part of a team — with hands-on experience and a results-driven mindset.
Featured projects
iSure - Webapp and API Backend
Technologies:
Angular 15, Typescript, NodeJS 18, NestJS, AWS Lambda, Serverless Framework, S3, DynamoDB, mySQL, iOS Swift 5, SwiftUI
Pares - Integrated finance
Technologies used:
Java 19, Spark, Hibernate, Typescript, Angular 14, AWS Amplify, mySQL
Testimonials
Mr. Kiessler demonstrated exceptional motivation and consistently showed a proactive mindset. He collaborated effectively with the team and stakeholders. His technical expertise was consistently outstanding, and he delivered high-quality output without fail. The technologies he worked with included Angular, TypeScript, Node.js, AWS Lambda, and MongoDB.
Lennard Becker - CTO Hesse Digital AG - HB Solutions Enterprises AG
Mr. Kiessler's consulting support focused particularly on SQL databases, Java, and Angular. We benefited greatly from his excellent technical knowledge and practical experience. He patiently clarifies our requirements and reliably contributes his expertise, allowing us to quickly develop best-practice solutions together.
Gerald Iserloh - Dipl.-Kaufmann (FH) - PARES Strategiepartner
What I value most about Mr. Kiessler is his consistently confident and highly professional manner. Daily work in our industry can be extremely demanding and sometimes hectic. Mr. Kiessler always remains calm and works very reliably and flawlessly, even under pressure.
Frank Kleinert - Managing Director - SayWay GmbH
We've completed many software development projects with Mr. Kiessler over the years. The collaboration has always been straightforward and to our complete satisfaction. Mr. Kiessler is a competent and experienced point of contact who is always present, absolutely reliable, and accommodating. What I particularly appreciate about Mr. Kiessler is that he always thinks and acts in the best interest of the project.
Johannes Krause - Senior System Architect - Netempire Software GmbH
Oliver was our fullstack engineer for developing an e-commerce marketplace MVP. He impressed us with his high technical competence, speed, and 100% reliability. He always delivered on time, even under time pressure, and communicated very clearly and transparently throughout.
Alexander Stump (Stylespotted / DL Remote) - DL Remote
This is how I imagine professional collaboration: precise, reliable, and always fair. Thank you, Oliver, for successfully condensing and excellently implementing my thoughts and ideas. Anyone who doesn't want standard solutions is in excellent hands with Oliver.
Pablo García - Beratung | Coaching | Training