About this role.
Oowlish is hiring a senior full-stack web engineer to build a scalable, responsive AI-powered chat application using React and Python. The role centers on frontend architecture, conversational UI development, REST API integration, authentication, session management, and backend services. The engineer will integrate web applications with AWS Bedrock and collaborate closely with AI engineers in an Agile, remote environment. Candidates need at least five years of software engineering experience, strong English communication, and production experience with modern web applications.
Role DNA
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Job Complexity
4/5Pace & Pressure
4/5Autonomy Level
4/5Communication Load
4/5Salary analysis
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Core skills
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Sample interview questions
I would separate presentation components from state and data-access layers, using a dedicated chat state store or reducer for messages, request status, errors, and session metadata. A service layer would manage streaming or WebSocket/HTTP communication, while reusable message, composer, conversation, and loading-state components would keep the UI testable and maintainable.
I would avoid exposing cloud credentials in the browser and route requests through a secure backend or API gateway with appropriate authentication and authorization. I would also define clear request and response contracts, handle timeouts and retries carefully, sanitize user inputs, log failures safely, and provide useful UI states for latency, errors, and incomplete responses.
I would use an established identity provider such as Amazon Cognito or another standards-based OAuth/OIDC solution, with short-lived tokens and secure refresh handling. On the backend, I would validate tokens and enforce authorization per resource; on the frontend, I would protect routes, avoid insecure token storage where possible, manage expiry gracefully, and ensure logout clears local session state.
I would virtualize message lists, paginate or lazily load older history, memoize expensive components selectively, and keep state updates granular to prevent unnecessary rerenders. I would also optimize bundle size through code splitting, monitor browser performance metrics, and profile real interaction flows before making targeted improvements.
I start by agreeing on API contracts, expected model behaviors, error formats, latency expectations, and evaluation criteria. I communicate user-experience implications of model responses early, share reproducible examples of issues, and use iterative testing with product and AI stakeholders to refine prompts, guardrails, and interface behavior.
Join Our Team
Oowlish, one of Latin America’s rapidly expanding software development companies, is seeking experienced technology professionals to enhance our diverse and vibrant team.
As a valued member of Oowlish, you will collaborate with premier clients from the United States and Europe, contributing to pioneering digital solutions. Our commitment to creating a nurturing work environment is recognized by our certification as a Great Place to Work, where you will have opportunities for professional development, growth, and a chance to make a significant international impact.
We offer the convenience of remote work, allowing you to craft a work-life balance that suits your personal and professional needs. We’re looking for candidates who are passionate about technology, proficient in English, and excited to engage in remote collaboration for a worldwide presence.
About the Role
We are looking for an experienced Senior Web Application Engineer to build a modern web-based chat application that connects users with an AI-powered backend built on AWS Bedrock.
This role focuses on designing and developing an intuitive, responsive, and scalable chat interface while integrating seamlessly with AI services through REST APIs. You will collaborate closely with AI engineers to deliver an exceptional conversational user experience powered by enterprise-grade AI technologies.
The ideal candidate combines strong frontend development expertise with backend integration experience and enjoys building user-centric web applications powered by modern AI platforms.
Key Responsibilities:
- Design and develop modern web applications using React and Python.
- Build intuitive chat-based user interfaces for AI-powered applications.
- Integrate frontend applications with AWS Bedrock AI services through REST APIs.
- Develop scalable backend services supporting web applications.
- Build secure authentication and user session management.
- Optimize application performance, responsiveness, and usability.
- Collaborate closely with AI engineers to integrate conversational AI capabilities.
- Build reusable UI components and maintain clean application architecture.
- Participate in technical design discussions and code reviews.
- Ensure high-quality, maintainable, and scalable code.
Requirements:
- 5+ years of professional software engineering experience.
- Strong React development experience.
- Strong Python development experience.
- Experience building modern web applications.
- Experience consuming REST APIs.
- Experience working with AWS cloud services.
- Strong frontend architecture knowledge.
- Strong English communication skills.
- Experience working in Agile environments.
Must Have:
- Strong React development experience.
- Strong Python development experience.
- Experience building production web applications.
- Experience developing chat-based or conversational interfaces.
- Experience integrating REST APIs.
- Experience consuming AI or backend services from frontend applications.
- Experience with AWS managed services.
- Strong understanding of frontend architecture and component design.
- Experience managing application state.
- Responsive web design experience.
- Experience implementing authentication and session management.
Nice to Have:
- Experience integrating AWS Bedrock.
- Experience with conversational AI interfaces.
- Experience with WebSockets.
- Experience with Amazon Cognito.
- Experience building AI-powered web applications.
- Experience with TypeScript.
- Experience with modern UI component libraries.
- Experience with CI/CD pipelines.
- Experience optimizing frontend performance.
Compensation
Additional Information
Benefits & Perks:
Home office;
Competitive compensation based on experience;
Career plans to allow for extensive growth in the company;
International Projects;
Oowlish English Program (Technical and Conversational);
Oowlish Fitness with Total Pass;
Games and Competitions;
You can also apply here:
Website: https://www.oowlish.com/work-with-us/
LinkedIn: https://www.linkedin.com/company/oowlish/jobs/
Instagram: https://www.instagram.com/oowlishtechnology/
Annual salary information is not provided for this position. Explore salary ranges for similar roles in our Salary Directory ›
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