Base
Senior Full-Stack Developer (React + React Native & TypeScript)
Krakow, Poland
Azienda:
TechBiz Global GmbH
Pubblicato: 31.05.2026
Data di chiusura: 15.07.2026
Referenze lavorative: 8583bb1389aec4c6d7e7519ad4085446
Informazioni sul lavoro
Posizione
Krakow, Poland
Azienda
TechBiz Global GmbH
Referenze lavorative
8583bb1389aec4c6d7e7519ad4085446
Tipo di elenco
Base
Permesso di lavoro UE richiesto
No
Pubblicato
31.05.2026
Data di chiusura
15.07.2026
Descrizione del lavoro
At TechBiz Global, we are providing recruitment service to our TOP clients from our portfolio. We are currently seeking a Senior Full-Stack Developer to join one of our clients' teams. If you're looking for an exciting opportunity to grow in a innovative environment, this could be the perfect fit for you.What you’ll do:-Develop and maintain our cross-platform interfaces using React-Refactor and modernize components to improve speed, usability and accessibility-Use a diverse set of skills to improve and optimize the performance & design of our products & interfaces-Collaborate closely with a small, agile team-Take ownership of projects and features from concept to release-Drive architecture and code quality (patterns, refactoring, maintainability)-Be ready to contribute quickly after an fair onboarding period-Improve performance & UX with measurable outcomes (Core Web Vitals, load times, responsiveness)What we’re looking for:-Several years of production experience-Excellent TypeScript skills (clean types, refactor-safe code)-Solid experience with React & React Native, especially hooks and modern component patterns-Understanding of responsive design and accessible web development-Knowledge of performance optimization, accessibility best practices, and (testing) tools such as Vitest, Playwright, Maestro-Ability to work independently, communicate clearly, and deliver end-to-endKnow or be ready to learn:-React Query (@tanstack/react-query): comfortable working with queries, mutations, caching, and existing API hooks-Zustand: able to work confidently with global state in an existing codebase-Electron: familiar with building/maintaining cross-platform desktop apps-Native mobile development: experience with Kotlin and/or Swift
Abilità
ABAP
adapt to changes in technological development plans
AJAX
Ajax Framework
analyse software specifications
Ansible
Apache Maven
Apache Tomcat
APL
ASP.NET
Assembly (computer programming)
blockchain openness
blockchain platforms
C
COBOL
CoffeeScript
collect customer feedback on applications
Common Lisp
computer programming
create flowchart diagram
cyber attack counter-measures
data visualisation software
debug software
defence standard procedures
define technical requirements
design user interface
develop automated migration methods
develop creative ideas
develop software prototype
do cloud refactoring
Drupal
Eclipse (integrated development environment software)
engineering principles
engineering processes
Erlang
Git
Groovy
Haskell
IBM WebSphere
ICT debugging tools
ICT security legislation
identify customer requirements
integrate system components
integrated development environment software
Internet of Things
interpret technical requirements
Java (computer programming)
JavaScript
JavaScript Framework
Jenkins (tools for software configuration management)
KDevelop
Laravel
Lisp
manage engineering project
Matlab
Microsoft Visual C++
migrate existing data
ML (computer programming)
MySQL
NoSQL
object-oriented modelling
Objective-C
OpenEdge Advanced Business Language
Oracle Application Development Framework
Pascal (computer programming)
perform scientific research
Perl
PHP
Project Management
Prolog (computer programming)
Puppet (tools for software configuration management)
Python (computer programming)
R
Ruby (computer programming)
Salt (tools for software configuration management)
SAP R3
SAS language
Scala
Scratch (computer programming)
screen reader
Smalltalk (computer programming)
smart contract
software anomalies
software frameworks
Spark
SQL
STAF
Swift (computer programming)
technical drawings
tools for software configuration management
Trading Software
TypeScript
use an application-specific interface
use automatic programming
use concurrent programming
use functional programming
use logic programming
use object-oriented programming
use query languages
use software design patterns
use software libraries
use technical drawing software
utilise computer-aided software engineering tools
utilise machine learning
VBScript
Visual Basic
Web Services
WordPress
World Wide Web Consortium standards
Xcode