Senior Full Stack Engineer (React | TypeScript | NestJS)

Posted 15 Days Ago
Be an Early Applicant
7 Locations
In-Office or Remote
Senior level
Software
The Role
As a Senior Full Stack Engineer, you will build patient-facing features, design APIs, mentor other engineers, and ensure system reliability in a healthcare platform.
Summary Generated by Built In
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 a Senior Full Stack Engineer to build and evolve patient-facing features across a healthcare platform.

This is a high-impact, product-focused role where you will own features end-to-end—from API design through polished UI—while contributing to architectural decisions and mentoring other engineers.

You will work on real-world workflows such as appointment booking, insurance verification, and patient portal experiences, building scalable and reliable systems that directly impact patient outcomes.

Key Responsibilities:

  • Build and maintain full-stack features using Next.js, React, and NestJS
  • Design and develop APIs with proper validation, error handling, and documentation
  • Create responsive and accessible user interfaces using React, Tailwind CSS, and component libraries (Radix UI or similar)
  • Own complex workflows such as appointment scheduling, patient portals, and integrations
  • Contribute to architecture decisions and establish best practices across the stack
  • Mentor engineers and provide technical guidance through code reviews
  • Integrate with third-party systems (EHRs, payment providers, external APIs)
  • Ensure system reliability through testing, monitoring, and performance optimization
  • Maintain high standards for data handling, including HIPAA compliance

Must have:

  • 5+ years of experience in full-stack software engineering
  • Strong proficiency in TypeScript across frontend and backend
  • Strong experience with React (Next.js preferred)
  • Experience with Node.js backend frameworks (NestJS, Express, or similar)
  • Solid experience with PostgreSQL and ORMs (TypeORM or similar)
  • Experience building and shipping complex user-facing features end-to-end
  • Experience with form handling (React Hook Form, Formik) and validation (Zod, Yup)
  • Experience mentoring engineers or leading technical initiatives
  • Strong understanding of building scalable, reliable systems

Nice to Have:

  • Experience in healthcare environments (EHR integrations, HIPAA compliance)
  • Experience with state management tools (Redux, React Query)
  • Experience with component libraries (Radix UI, shadcn)
  • Experience with background job systems (Bull, BullMQ, Sidekiq)
  • Experience integrating with Salesforce or external enterprise systems
  • Experience with feature flagging and gradual rollouts
  • Familiarity with observability tools (Datadog, analytics platforms)


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/


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The Company
106 Employees
Year Founded: 2017

What We Do

We are on a mission to give every company, no matter the size, the opportunity to innovate and help build a better future. Our Services: Dedicated Tech (full/partial) Squads: we create multi-disciplinary, remote (near-shore) Tech Squads that become part of your team. They adapt to your workflows and are trained on Agile methodologies to deliver continuous value. We believe that well-trained remote teams bring clients the opportunity to increase innovation output by accessing a greater / more diverse pool of talent, while reducing the cost of development. On-Demand Software Development: at our core, we are software developers excited about building digital products and solutions using the latest technologies and agile methodologies. We provide end-to-end capabilities to deliver on your technical requests. Product Management, Tech Architecture, Front / Back End Development, Devops & QA Venture Building: we partner with companies to co-launch new digital businesses that leverage core assets of the company (distribution channels, customer base, industry knowledge, proprietary technology, etc). We take the co-created ideas into MLP’s (Most Lovable Product) aiming to find product market fit and scale in the leanest possible way. As startup founders ourselves, we love getting things from 0 to 1. We are End-To-End Innovation Enablers, helping your company unlock it's full innovation potential.

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