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Ascendion

Full Stack Engineer

Ascendion
Poland · Full-time · Mid-Senior

We are looking for a Senior Full Stack Engineer with strong experience in React, TypeScript, and JavaScript on the front end, and solid knowledge of backend API integration and development. The ideal candidate should be comfortable building scalable web applications, making asynchronous RESTful requests, and handling complex data and error scenarios across the full technology stack.

Key Responsibilities:

  • Design, develop, and maintain end-to-end web applications with a focus on performance, scalability, and user experience.
  • Build responsive front-end interfaces using React, JavaScript (ES6+), and TypeScript.
  • Develop and integrate with RESTful APIs, ensuring robust async communication between front-end and back-end layers.
  • Implement effective error handling, data validation, and exception management strategies.

Required Skills and Experience:

  • 6+ years of full stack development experience.
  • Strong proficiency in React.js, TypeScript, and JavaScript.
  • Hands-on experience developing and consuming RESTful APIs and handling asynchronous data flows.
  • Solid understanding of HTTP protocols, API design, and error handling.
  • Experience with databases (SQL and/or NoSQL).
  • Familiarity with CI/CD pipelines, Git, and cloud services (AWS, Azure, or GCP).

About Us:

Ascendion is a global, leading provider of AI-first software engineering services, delivering transformative solutions across North America, APAC, and Europe. We are headquartered in New Jersey. We combine technology and talent to deliver tech debt relief, improve engineering productivity solutions, and accelerate time to value, driving our clients’ digital journeys with efficiency and velocity. Guided by our “Engineering to the power of AI” [EngineeringAI] methodology, we integrate AI into software engineering, enterprise operations, and talent orchestration, to address critical challenges of trust, speed, and capital. For more information, please go to www.ascendion.com

With Ascendion (www.ascendion.com), you:

  • Will get to work on numerous challenging and exciting projects on our various offerings including Salesforce, AI/Data Science, Generative AI/ML, Automation, Cloud Enterprise and Product/Platform Engineering.
  • At Ascendion you have high chances of project extension or redeployment to other clients.
  • Additionally, you can also share CV of anyone you know. We have a referral policy in place.

Key Skills

Ranked by relevance

ai typescript responsive salesforce cloud sql aws
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Posted
Oct 20, 2025
Type
Full-time
Level
Mid-Senior
Location
Wroclaw Metropolitan Area
Company
Ascendion

Industries

Technology Information Internet

Categories

Engineering

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