Sportradar
Senior Fullstack Engineer(m/w/x)
Full-timeOn-siteSenior
Wien
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WIwikifolio Financial Technologies AG
Senior Full-Stack Engineer - Mobile(m/w/x)
Wien
from 4,350 / month
Full-timeOn-siteSenior
Nejo AI Summary
Leading mobile feature development for iOS/Android with React Native, building NestJS backend services at FinTech for B2C investments. 5+ years React Native and 2+ years Node.js backend experience required. End-to-end feature ownership across mobile and backend layers.
Requirements
- Senior-level experience in mobile application development
- 5+ years of experience with React Native
- 2–3+ years of backend development experience using Node.js frameworks, preferably NestJS
- Strong proficiency in TypeScript and JavaScript
- Experience building and consuming REST APIs; GraphQL experience is a plus
- Solid understanding of iOS and Android platform-specific considerations
- Experience with state management and performance optimization in mobile applications
- Working knowledge of Docker for development and deployment
- Experience with CI/CD pipelines for mobile and backend applications
- Familiarity with authentication and authorization concepts; experience with OAuth and JWT is a strong plus
- Proficiency with Git and modern version control workflows
- Willingness to participate in on-call duties, production support, and incident response
- Interest in financial markets
- Strong verbal and written communication skills in English
- Experience with PostgreSQL and ORMs such as TypeORM
- Cloud experience on AWS, Azure, or GCP
- Knowledge of mobile security best practices
- Experience with mobile and backend testing frameworks
- Exposure to performance profiling and monitoring tools
Tasks
- Lead development of mobile application features for iOS and Android using React Native
- Design, implement, and maintain backend services using NestJS
- Expose REST and/or GraphQL APIs for mobile clients
- Collaborate with Team Lead, Product Management, Design, and Backend teams on requirements and solutions
- Take ownership of end-to-end feature delivery across mobile and backend layers
- Ensure high code quality through reviews, refactoring, and best practices
- Improve application performance, stability, and scalability on client and backend sides
- Implement and maintain testing strategies for mobile and backend components
- Contribute to and enhance CI/CD pipelines for mobile and backend services
- Participate in on-call rotations, production support, and incident response
- Identify and address technical debt and architectural challenges proactively
- Stay updated with React Native, NestJS, and full-stack development best practices
Work Experience
- 5 years
Education
- Bachelor's degreeOR
- Master's degree
Languages
- English – Business Fluent
Tools & Technologies
- React Native
- Node.js
- TypeScript
- JavaScript
- Docker
- CI/CD
- PostgreSQL
- AWS
- Azure
- GCP
Find the original job posting in its most current version here. Nejo automatically captured this job from the website of wikifolio Financial Technologies AG and processed the information on Nejo with the help of AI for you. Despite careful analysis, some information may be incomplete or inaccurate. Please always verify all details in the original posting! Content and copyrights of the original posting belong to the advertising company.
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WIwikifolio Financial Technologies AG
Senior Full-Stack Engineer - Mobile(m/w/x)
Wien
from 4,350 / month
Full-timeOn-siteSenior
Nejo AI Summary
Leading mobile feature development for iOS/Android with React Native, building NestJS backend services at FinTech for B2C investments. 5+ years React Native and 2+ years Node.js backend experience required. End-to-end feature ownership across mobile and backend layers.
Requirements
- Senior-level experience in mobile application development
- 5+ years of experience with React Native
- 2–3+ years of backend development experience using Node.js frameworks, preferably NestJS
- Strong proficiency in TypeScript and JavaScript
- Experience building and consuming REST APIs; GraphQL experience is a plus
- Solid understanding of iOS and Android platform-specific considerations
- Experience with state management and performance optimization in mobile applications
- Working knowledge of Docker for development and deployment
- Experience with CI/CD pipelines for mobile and backend applications
- Familiarity with authentication and authorization concepts; experience with OAuth and JWT is a strong plus
- Proficiency with Git and modern version control workflows
- Willingness to participate in on-call duties, production support, and incident response
- Interest in financial markets
- Strong verbal and written communication skills in English
- Experience with PostgreSQL and ORMs such as TypeORM
- Cloud experience on AWS, Azure, or GCP
- Knowledge of mobile security best practices
- Experience with mobile and backend testing frameworks
- Exposure to performance profiling and monitoring tools
Tasks
- Lead development of mobile application features for iOS and Android using React Native
- Design, implement, and maintain backend services using NestJS
- Expose REST and/or GraphQL APIs for mobile clients
- Collaborate with Team Lead, Product Management, Design, and Backend teams on requirements and solutions
- Take ownership of end-to-end feature delivery across mobile and backend layers
- Ensure high code quality through reviews, refactoring, and best practices
- Improve application performance, stability, and scalability on client and backend sides
- Implement and maintain testing strategies for mobile and backend components
- Contribute to and enhance CI/CD pipelines for mobile and backend services
- Participate in on-call rotations, production support, and incident response
- Identify and address technical debt and architectural challenges proactively
- Stay updated with React Native, NestJS, and full-stack development best practices
Work Experience
- 5 years
Education
- Bachelor's degreeOR
- Master's degree
Languages
- English – Business Fluent
Tools & Technologies
- React Native
- Node.js
- TypeScript
- JavaScript
- Docker
- CI/CD
- PostgreSQL
- AWS
- Azure
- GCP
Find the original job posting in its most current version here. Nejo automatically captured this job from the website of wikifolio Financial Technologies AG and processed the information on Nejo with the help of AI for you. Despite careful analysis, some information may be incomplete or inaccurate. Please always verify all details in the original posting! Content and copyrights of the original posting belong to the advertising company.
About the Company
wikifolio Financial Technologies AG
Industry
FinancialServices
Description
The company is a dynamic and rapidly growing FinTech focused on B2C investments in German-speaking countries.
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