Source Job

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.

JavaScript TypeScript Google Ad Manager Google Cloud Platform

20 jobs similar to Senior Software Engineer - Javascript

Jobs ranked by similarity.

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.

UK Unlimited PTO

  • Take ownership of crafting intuitive, secure, and high-performance user experiences for mission-critical financial products.
  • Lead frontend architecture decisions and contribute to scalable design systems and reusable UI components.
  • Collaborate closely with product, design, and engineering teams to deliver features from concept to production.

Our partner is building next-generation financial applications powered by modern web technologies and blockchain infrastructure. They operate with a high-autonomy, mission-driven culture and offer a fully remote environment with a focus on innovation and collaboration.

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

  • 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.

$170,000–$230,000/yr
US Unlimited PTO

  • Lead the architecture, design, and delivery of large scale frontend applications across web and mobile.
  • Build and evolve high performance React and React Native applications.
  • Define and enforce frontend best practices, including performance optimization, accessibility, and maintainability.

Vetcove modernizes veterinary software and the pet parent healthcare experience with a marketplace, ecommerce, and practice management system. Backed by Y Combinator and top venture investors, the company is a fast-growing, mission-driven team serving over 25,000 hospitals across the US.

$120,000–$154,000/yr
US

  • Build, launch, and maintain landing pages and web experiences using a headless CMS like Sanity.
  • Own website performance metrics, SEO, and technical optimization while managing A/B testing programs.
  • Collaborate across marketing, product, and design teams to create high-performing, conversion-focused digital experiences.

Jobgether is an AI-powered job matching platform that connects candidates with hiring companies. They process job applications using algorithmic matching and share shortlists directly with employers, aiming for fast and fair reviews.

US

  • Design and develop scalable, secure, and maintainable React-based web applications for enterprise administrative workflows.
  • Collaborate with backend engineers to integrate REST APIs and deliver seamless application functionality.
  • Participate in code reviews, provide constructive feedback, and help maintain high engineering standards.

This opportunity is with a partner company in the cybersecurity space. The company is dedicated to building secure, scalable solutions for enterprise customers worldwide.

UK 6w PTO

  • Lead a talented frontend engineering team responsible for building high-performance digital experiences in a large-scale MarTech environment.
  • Drive architectural decisions, guide major platform migrations, and ensure delivery of scalable, high-quality applications.
  • Mentor and grow the team while promoting engineering best practices and collaborating with cross-functional stakeholders.

The company operates in the marketing technology (MarTech) industry. It fosters a supportive culture focused on innovation, collaboration, and continuous learning.

  • Build intuitive front-end interfaces and design seamless UX flows.
  • Implement application logic and integrate APIs, supporting backend needs.
  • Contribute to web application delivery with strong problem-solving skills.

Software Mind develops impactful solutions for global companies, working with tech giants and unicorns on transformative projects. The culture embraces openness, respect, and growth, with cross-functional teams that combine employment with enjoyment.

India

  • Design and deliver modern, high-performing web applications using React and Next.js.
  • Collaborate with cross-functional teams to transform business requirements into reliable digital products.
  • Drive technical excellence through clean code, performance optimization, testing, and continuous improvement.

Jobgether uses an AI-powered matching process to connect candidates with job opportunities. It operates as a platform that reviews applications and shares shortlists with hiring companies, with a collaborative and agile engineering culture.

US Unlimited PTO

  • Collaborate cross-functionally with product, ops, sales, and marketing to build platform solutions.
  • Write maintainable end-to-end code and perform exhaustive tests before review.
  • Mentor team members and manage work schedules as a self-starter in an asynchronous environment.

Better Health is creating a new medical provider type, disrupting the $60B home medical supply industry by bundling peer support, coaching, education, and home delivery. Since 2019, Better Health has gained licenses in 48 states, serves top payers, and is backed by leading investors, growing a diverse team united by shared values.

US Unlimited PTO

  • Develop full-stack solutions for brand and media workflows, including asset libraries and editor integrations.
  • Design and build APIs and backend services for asset storage, metadata, and search.
  • Collaborate with cross-functional teams to deliver polished user experiences and own features from concept to production.

The company builds a platform for brand and media workflow management, helping creative teams manage digital assets. It is a remote-first organization with a culture emphasizing ownership, craftsmanship, and continuous improvement.

$90,000–$120,000/yr
US

  • Design and implement advanced GA4 and GTM measurement solutions to track user behavior and optimize digital experiences.
  • Develop scalable data pipelines and dashboards using BigQuery, Looker Studio, and similar tools to provide actionable insights.
  • Collaborate with multidisciplinary teams to translate analytics findings into strategic recommendations and drive conversion rate optimization.

They are a digital agency specializing in marketing analytics and digital solutions. The team is collaborative and focused on delivering high-quality work, though the exact size is not specified.

$190,800–$267,100/yr
United States

  • Own the technical design and delivery of complex frontend features across Ads Manager's creative and recommendation workflows.
  • Partner with product and design to work through ambiguous requirements and make sound product and engineering tradeoffs.
  • Raise the quality of the codebase through thoughtful architecture, testing, observability, performance work, and accessibility.

Reddit is a community of communities built on shared interests, passion, and trust. With 100,000+ active communities and approximately 126 million daily active unique visitors, Reddit is one of the internet's largest sources of information.

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.

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.

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.

$100,000–$192,000/yr
US

  • Improve software processes, quality, and techniques using Lean and agile methodologies.
  • Develop robust and secure code with event-driven serverless architecture and Angular.
  • Mentor team members and support continuous integration and automated testing.

Rithum Corporation is a technology company that develops software solutions and values high-quality engineering. The company emphasizes continuous delivery, automated testing, and mentorship, fostering a culture of collaboration and innovation.

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.

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.