Senior Software Engineer (Frontend)

John Snow Labs is an AI and NLP company providing state-of-the-art software, models, and data, primarily for the healthcare, life sciences, legal, and finance sectors. They are the creators of Spark NLP, the most widely used NLP library in the enterprise.

John Snow Labs

Employee count: 51-200

We're seeking an experienced software engineer to architect and implement complex user interfaces for our healthcare chatbot platform (https://www.johnsnowlabs.com/medical-chatbot).

Key Responsibilities

* Architect and implement complex frontend solutions using TypeScript and React
* Collaborate with designers and AI engineers to create intuitive user interactions and experiences
* Maintain high standards for code quality through testing, documentation, and code review

Required Technical Skills

* Strong expertise in TypeScript and modern browser APIs (DOM, Events, etc.)
* Proven experience building complex, stateful UI applications

* Experience in performance optimization

Understanding how to implement a11y and UX design principles

Nice to Have

* Knowledge of backend technologies including Node.js, PostgreSQL, RabbitMQ
* Practical knowledge of GraphQL and state machines

What John Snow Labs offers:

The Opportunity: We offer long-term freelance contracts for professionals eager to tackle cutting-edge problems, learn and build your career as part of a world-class team. This role requires a minimum commitment of 30 hours per week and is open to individual applicants only (no agencies or teams, please). 100% remote position.

What We Offer:

Career Growth: This is a career-defining opportunity that promises to expand your skill set and experience with various tools and techniques.
- Collaborative Environment: Work within a team of clinical and data science experts to make a significant impact.
- State of the Art Technology: Contribute to advancing the state of the art of Healthcare AI, including contributions to open-source projects and peer-reviewed papers.
- Learning and Culture: Opportunities for professional development through knowledge exchange within a global AI community.

Application Process: Qualified and interested candidates should apply by submitting a resume, a list of peer-reviewed publications, and public examples of software code or past projects.

John Snow Labs is an award-winning AI and NLP company, accelerating progress in data science by providing state-of-the-art software, data, and models. Founded in 2015, it helps healthcare and life science companies build, deploy, and operate AI products and services. John Snow Labs is the winner of the 2018 AI Solution Provider of the Year Award, the 2019 AI Platform of the Year Award, the 2019 International Data Science Foundation Technology award, and the 2020 AI Excellence Award.
John Snow Labs is the developer of Spark NLP - the world’s most widely used NLP library in the enterprise - and is the world’s leading provider of state-of-the-art clinical NLP software, powering some of the world’s largest healthcare & pharma companies. John Snow Labs is a global team of specialists, of which 20% hold a Ph.D. or M.D. and 53% hold at least a Master’s degree in disciplines covering data science, medicine, software engineering, pharmacy, DevOps and SecOps.

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About the job

Apply before

Oct 28, 2025

Posted on

Aug 29, 2025

Job type

Contractor

Experience level

Senior

Location requirements

Open to candidates from all countries.

Hiring timezones

Worldwide

About John Snow Labs

Learn more about John Snow Labs and their company culture.

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John Snow Labs emerged from a vision to accelerate the adoption and impact of artificial intelligence, particularly in sectors critical to human well-being like healthcare and life sciences. Founded in 2015, the company embarked on a journey to provide state-of-the-art software, meticulously curated models, and invaluable data to empower organizations to not just build, but to effectively deploy and operate AI projects. What began as a focused endeavor quickly gained momentum, driven by a commitment to innovation and a deep understanding of the nuanced challenges within these specialized domains. The development of Spark NLP marked a significant milestone, establishing itself as the world's most widely used Natural Language Processing library in the enterprise. This foundational technology became the bedrock upon which John Snow Labs built its reputation and its expanding suite of solutions.

The company's narrative is one of continuous advancement and a relentless pursuit of excellence. Recognizing the unique demands of the healthcare industry, John Snow Labs developed specialized offerings like Healthcare NLP, Medical Large Language Models (LLMs), and the Generative AI Lab No-Code Platform. These tools were not created in a vacuum; they were forged through collaboration with leading pharmaceutical companies, academic medical centers, and health technology innovators. This close partnership with the industry ensured that John Snow Labs' solutions were not only technologically advanced but also practically applicable and capable of addressing real-world challenges. The impact of their work is evident in the widespread adoption of their medical AI software, which now powers critical functions within some of the world's most respected healthcare and pharmaceutical organizations. Beyond its commercial success, John Snow Labs has consistently demonstrated a commitment to the broader AI community, fostering education and advancement through initiatives like The NLP Summit, a free event designed to democratize AI knowledge and inspire further innovation. This dedication to both cutting-edge development and community engagement underscores John Snow Labs' journey from a promising startup to a recognized leader in applied AI.

Tech stack

Learn about the tools and technologies that John Snow Labs uses to build, market, and sell its products.

View tech stack

Bootstrap

Python

Facebook Pixel

Redis

Spark NLP

Git

Docker

NGINX

John Snow Labs employees can create an account to update this tech stack.

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