Senior Javascript Engineer
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Before you apply
SalaryNo pay range posted
LocationSan Francisco
Work modehybrid
Typefull-time
SenioritySenior
Experience5+ yrs
DepartmentEngineering
Company size4+ people
PostedOct 14, 2025 · 1y ago
Verified live4h ago
May no longer be actively hiring
Posted by the company on Oct 14, 2025No pay range listed, though California requires one
At a glanceSummarised by Seekless from the posting.
Strong background in modern JavaScript frameworks
Deep understanding of full-stack development
Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience
5+ years of experience as a JavaScript Engineer
Proficiency in TypeScript
Strong experience with PostgreSQL
Extensive experience with Next.js for front-end development
Demonstrated experience with NestJS for backend development
Proven experience with AI prompt engineering
Familiarity with model training concepts and practices
Experience implementing and managing real-time messaging systems
Understanding and practical application of embedding and chunking techniques
Experience with Retrieval Augmented Generation (RAG) implementation
Solid understanding of software design principles, data structures, and algorithms
Excellent problem-solving skills and attention to detail
Strong communication and interpersonal skills
Experience with cloud platforms (AWS, Azure, GCP)
Familiarity with containerization technologies (Docker, Kubernetes)
Experience with testing frameworks (e.g., Jest, React Testing Library)
Skills
JavaScript
Next.js
NestJS
Node.js
PostgreSQL
TypeScript
AWS
Azure
GCP
Docker
Kubernetes
Jest
React Testing Library
About the role
You will need a strong background in modern JavaScript frameworks and a deep understanding of full-stack development. You will be instrumental in designing, developing, and maintaining scalable and high-performance applications, with a particular focus on integrating cutting-edge AI capabilities.
Responsibilities
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Lead the design, development, and deployment of complex web applications using Next.js and NestJS.
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Develop robust and efficient backend services with Node.js, interacting with PostgreSQL databases.
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Implement and maintain real-time messaging solutions.
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Apply expertise in AI prompt engineering to optimize interactions with large language models.
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Contribute to the training and fine-tuning of machine learning models.
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Develop and integrate features related to embedding, chunking, and Retrieval Augmented Generation (RAG).
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Write clean, maintainable, and well-documented code in TypeScript.
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Collaborate closely with product managers, designers, and other engineers to define, design, and ship new features.
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Mentor junior engineers and contribute to best practices within the team.
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Participate in code reviews to ensure code quality and adherence to standards.
Required Skills and Qualifications
•
Bachelor’s degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
•
5+ years of experience as a JavaScript Engineer, with a focus on full-stack development.
•
Proficiency in TypeScript.
•
Strong experience with PostgreSQL.
•
Extensive experience with Next.js for front-end development.
•
Demonstrated experience with NestJS for backend development.
•
Proven experience with AI prompt engineering.
•
Familiarity with model training concepts and practices.
•
Experience implementing and managing real-time messaging systems.
•
Understanding and practical application of embedding and chunking techniques.
•
Experience with Retrieval Augmented Generation (RAG) implementation.
•
Solid understanding of software design principles, data structures, and algorithms.
•
Excellent problem-solving skills and attention to detail.
•
Strong communication and interpersonal skills.
Preferred Qualifications
•
Experience with cloud platforms (AWS, Azure, GCP).
•
Familiarity with containerization technologies (Docker, Kubernetes).
•
Experience with testing frameworks (e.g., Jest, React Testing Library).
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