Source Job

Brazil

  • Build and maintain JavaScript and TypeScript SDKs for a large developer community.
  • Design intuitive developer experiences and collaborate on open-source projects.
  • Own SDK compatibility across multiple runtimes and ensure high engineering standards.

JavaScript TypeScript SDK Development Open Source

20 jobs similar to SDK Engineer - JavaScript

Jobs ranked by similarity.

Global

  • Build and evolve our JS/TS SDKs, owning core parts of how developers interact with Supabase from JavaScript and TypeScript.
  • Work in the open on public repos, triaging issues, reviewing contributions, and maintaining release automation and CI health.
  • Own the type experience, ensuring generated database types flow correctly through client APIs and that our SDKs remain reliable across runtimes like Node, Deno, and browsers.

Supabase is a Postgres development platform that provides a complete backend solution including Database, Auth, Storage, Edge Functions, Realtime, and Vector Search. With around 400 team members across 60+ countries, we are a remote-first, open-source company that builds in public and values async work and autonomy.

Latin America

  • Use requirements from product manager to develop features that clients will love.
  • Leverage best practices to create great code and connect with your remote team daily.
  • Carefully analyze requirements, test scripts, and assist in planning and scope management.

Founders Workshop creates web and mobile apps for non-tech founders of tech startups. They partner with clients to deliver first version software on time and on budget, fostering a culture of collaboration, transparency, and continuous learning.

US

  • Design and develop production code using JavaScript and TypeScript.
  • Act as a subject matter expert on Prebid.js and header bidding solutions.
  • Optimize performance and reliability across large-scale publisher sites.

This company builds high-performance JavaScript solutions for digital monetization and programmatic advertising. It offers a collaborative, remote-first culture focused on innovation and technical excellence.

Brazil

  • Design, develop, test, and maintain high-quality software solutions across frontend and backend.
  • Build scalable backend services and APIs using Node.js, and responsive frontend applications with React.js.
  • Collaborate with cross-functional teams, participate in code reviews, and mentor developers to grow toward technical leadership.

Our partner is a technology company that builds impactful digital solutions. They have a remote-first culture with a global team.

Brazil

  • Develop and maintain front-end applications using modern technologies and frameworks.
  • Design and implement user interfaces for web platforms with a focus on performance, usability, and scalability.
  • Support technical decisions related to front-end architecture, development standards, and best practices.

The company is a partner organization focused on building innovative digital solutions. They offer a collaborative environment with multicultural teams and opportunities to work on global projects.

Brazil

  • Design, develop, and maintain backend APIs and CLI tools using TypeScript for developer productivity.
  • Collaborate with product teams and the open-source community to deliver end-to-end functionality and seamless user experiences.
  • Ensure reliability through comprehensive testing, documentation, and cross-platform support across Windows, Linux, and macOS.

This company develops developer tooling and command-line experiences for developers worldwide. It operates as a fully remote, async, and fast-moving organization with a globally distributed team.

Germany 7w PTO 9w maternity 9w paternity

  • Build new product features end-to-end, from rapid prototypes to scalable production implementations.
  • Develop and enhance AI-powered product capabilities by integrating new data sources, tools, and workflows.
  • Create complex React-based interfaces that are performant, reliable, maintainable, and well tested.

The company develops AI-powered tools and knowledge management experiences for teams worldwide. It is a remote-first organization with a collaborative culture focused on trust and ownership.

Brazil

  • Design, develop, and deliver scalable full-stack solutions using React, TypeScript, Java, and Spring Boot.
  • Act as a technical lead, mentoring engineers and driving architectural decisions.
  • Collaborate with product and engineering teams to transform business challenges into reliable technical solutions.

The company builds high-impact digital products for a global audience. It operates as a distributed, remote-first team with a focus on engineering excellence and agile delivery.

$49,637–$72,368/yr
Global Unlimited PTO

  • Lead development of a high-performance Web SDK for fraud detection and device fingerprinting, using JavaScript and TypeScript.
  • Design algorithms for unique device fingerprints and behavior-based insights, and build robust CI/CD pipelines.
  • Optimize SDK performance, ensure cross-browser compatibility, and maintain data privacy and security principles.

Oscilar builds an advanced AI Risk Decisioning Platform for managing fraud, credit, and compliance risk. It is a mission-driven team of industry veterans from Meta, Uber, Citi, and Confluent, with over 50% of the company in Engineering and Product.

Global

  • Develop, test and iterate on product features spanning frontend, backend, and cloud infrastructure.
  • Work closely with product, design, QA, and business teams to translate requirements into production-ready features.
  • Design and build integrations with third-party services such as social media, eCommerce, and AI.

We are a VC-funded creator marketplace app connecting eCommerce brands with everyday social media users. We are a high-growth, remote-first startup that offers a flexible 4-day work week.

$130,000–$160,000/yr
US Unlimited PTO

  • Build components of the LivePerson Voice product focusing on stability and innovation.
  • Work with Product Management to create delightful user experiences and architect business software and APIs.
  • Collaborate with peers on specifications, code reviews, and testing while meeting engineering KPIs.

LivePerson is a leader in trusted enterprise conversational AI and digital transformation. The company powers nearly a billion conversational interactions every month and has been named the #1 Most Innovative AI Company by Fast Company.

$149,800–$262,200/yr
North America Canada Unlimited PTO

  • Design and own SDK components and CLI tools for Scoped App development.
  • Partner with developer advocates and customers to translate user needs into scalable, intuitive tooling.
  • Build high-quality TypeScript and NodeJS code that powers CLI commands and integrations.

ServiceNow provides an AI platform that automates workflows and helps businesses reinvent themselves. The company supports 85% of the Fortune 500 and fosters an AI-native culture of innovation and inclusivity.

Brazil

  • Design and develop responsive web pages and user interfaces that support business objectives.
  • Optimize web applications for performance, scalability, reliability, and speed.
  • Collaborate with backend engineers to integrate services and deliver complete solutions.

Our partner is building a fast-growing technology environment focused on innovative financial solutions. The company operates remotely with a collaborative culture and high ownership, offering equity and professional growth opportunities.

Brazil

  • Lead the front-end engineering team, providing technical guidance and mentorship to ensure high-quality, scalable web applications.
  • Define front-end architecture, best practices, and technology choices while collaborating with Product, Design, and Back-end teams.
  • Drive continuous improvement in development processes, conduct code reviews, and support technical planning and hiring.

This company is a partner organization seeking a technical leader for front-end development. They foster a collaborative, inclusive culture with remote work and professional growth opportunities.

Global

  • Develop and maintain the FingerprintJS product, focusing on device identification and anti-fraud features.
  • Collaborate with the engineering team to improve system performance and scalability.
  • Write clean, efficient code and participate in code reviews.

FingerprintJS provides device intelligence and fraud detection solutions for businesses. The company is a growing tech startup with a developer-focused culture.

India

  • Lead the design and development of scalable browser extensions using Manifest V3 and modern browser APIs.
  • Collaborate with cross-functional teams to integrate security features across endpoint, backend, and web platforms.
  • Optimize performance, reliability, and security while staying current with evolving browser ecosystems and APIs.

The company specializes in enterprise data security through advanced browser-based technology. It is a fast-moving technology organization with a collaborative and inclusive culture.

Global 4w PTO

  • Develop new features for existing web funnels and single page applications for web2app flows.
  • Integrate analytics systems, A/B testing, and payment systems into web applications.
  • Use modern JavaScript (ES6+), TypeScript, React, and styled-components to build maintainable code.

Gismart is a value-driven mobile app developer specializing in Health & Wellness, Utilities, and Music apps, with over 1 billion downloads globally. Our team of over 350 diverse professionals across Europe fosters creativity and innovation in a supportive, values-driven culture.

Global

  • Develop and maintain frontend and backend components of web applications.
  • Collaborate with product managers, designers, and QA engineers to deliver features.
  • Write clean, well-documented code and optimize performance and security.

They are building a health services platform, focused on secure and scalable web applications. The engineering culture is collaborative, with an emphasis on professional development and modern technology.

Brazil

  • Design and develop full-stack features for internal platforms supporting finance, compliance, and transaction workflows.
  • Build scalable backend services, APIs, and integrations with third-party platforms.
  • Develop modern frontend applications and dashboards for operational metrics.

The company builds modern technology platforms to improve operational efficiency in the real estate industry. It operates as a remote-first team with a focus on product ownership and collaboration with global teams.

$170,000–$220,000/yr
US

  • Lead the strategy and evolution of AI-powered developer experience, enabling engineering teams to safely and effectively integrate AI throughout the software development lifecycle.
  • Optimize developer productivity by improving build performance, testing workflows, linting, type checking, and overall engineering efficiency across TypeScript/Node.js and Python environments.
  • Mentor engineers, gather continuous feedback, and drive long-term improvements across the development organization.

Jobgether is an AI-powered job matching platform that connects candidates with hiring companies. As a technology-driven recruitment service, it focuses on objective and fair candidate evaluation.