Source Job

US

  • Own, build, and maintain our JavaScript client library, ensuring it is robust and well-tested.
  • Build responsive, performant front-end applications using React, Redux, Vite, and WebSockets.
  • Contribute to full-stack projects including backend work in Python and REST API design.

TypeScript JavaScript React Python REST API

20 jobs similar to New Software Engineer (TypeScript/JavaScript)

Jobs ranked by similarity.

United States

  • Design and build core systems of the charting engine, including rendering primitives and domain features like drawing tools and indicator math.
  • Own the framework-agnostic core library architecture and its public API, plus build and maintain React and React Native bindings.
  • Drive architectural decisions on canvas compositing, performance standards, and establish visual testing discipline with pixel diffing and deterministic replay tests.

Topstep builds a trading platform with a custom charting engine that thousands of active traders rely on daily. It offers a collaborative remote culture with cameras-on meetings and a robust Slack environment, fostering a culture of ownership and engineering excellence.

$200,000–$350,000/yr
US

  • Architect and build a high-performance trading platform for active traders.
  • Collaborate with cross-functional teams on large-scale initiatives.
  • Prioritize end-user experience and maintain high code quality.

Clear Street is modernizing the brokerage ecosystem by replacing legacy infrastructure with a cloud-native clearing and custody system. Founded in 2018, the firm supports billions in trading volume daily and fosters a collaborative, innovative culture.

US

  • Build and own the frontend for Superluminal using TypeScript and React.
  • Design the core trading experience: order entry, positions, pricing display, and charts.
  • Operate with a high degree of autonomy on a small, fast-moving team.

Douro Labs builds Superluminal, a new perpetuals exchange focused on fast execution and better pricing for traders. The frontend team currently has three members, and this role is one of the first full-time hires, offering high independence and fast decision-making.

US Unlimited PTO

  • Build and ship high-quality product experiences across the stack, with attention to speed, reliability, usability, and craft.
  • Design and implement clean frontend systems in React and TypeScript, and develop APIs and backend services.
  • Own problems end to end, from idea formation through technical design, implementation, and long-term maintenance.

Ondo Finance provides institutional-grade, blockchain-enabled investment products and services, with a technology arm developing decentralized finance and an asset management arm creating tokenized funds. Founded by ex-Goldman Sachs team members, the company is fully remote, well-capitalized, and backed by top investors like Founders Fund and Coinbase Ventures.

US

  • Build responsive, high-performance web applications and trading interfaces across the full stack.
  • Design and develop scalable APIs, backend services, and microservices.
  • Implement real-time dashboards and optimize for speed, reliability, and user experience.

Tradeify builds a high-performance trading ecosystem that empowers traders worldwide with capital, technology, education, and community. They are a rapidly scaling fintech with a fast-moving startup culture.

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.

Germany

  • Design and develop scalable, high-performance frontend applications using React and TypeScript.
  • Co-own frontend architecture, including component design, state management, and performance optimization.
  • Collaborate with product, design, and backend teams to deliver intuitive, user-centric experiences.

Our partner is an AI-powered observability platform that helps developers manage massive data volumes. They are a remote-first company with a collaborative engineering culture and a focus on innovation.

Global

  • Build and maintain features across React/TypeScript frontend and NestJS/TypeScript backend, including UI, REST APIs, and data layers.
  • Design client-server architecture with state management, routing, authentication, real-time WebSocket updates, and AWS SQS background job processing.
  • Collaborate on integration between web app and LLM-based agents for message schemas, queue communication, and file/data handoff.

InsightRX builds a platform combining web applications with conversational AI to support pharmacokinetic/pharmacodynamic analysis and clinical trial workflows. Their team focuses on pharmaceutical R&D decision-making tools, though no specific size or culture data is provided.

Global

  • Build modern dashboard UI with React and TypeScript, shipping features for Canvas-based Generative AI pipelines and integrating with async WebSockets.
  • Ensure performance with large media datasets and shape UX decisions, not just implement specs.
  • Define data contracts with Backend and implement drag-and-drop interfaces, undo/redo, and real-time preview.

SplitMetrics is a global software company offering an ecosystem of products and services that serve as a growth engine for top mobile-first businesses worldwide. With nearly 10 years of experience, they work with top mobile companies and brands globally, generating over $1 billion in ad spend and fostering a remote-first, supportive culture across 20+ countries.

US 4w PTO

  • Serve as senior technical point of contact for partners integrating with NinjaTrader APIs, providing expert guidance on authentication, endpoints, and data models.
  • Partner with external engineering teams to debug integration issues, conduct code reviews, and accelerate time-to-production.
  • Collaborate with Technical Account Managers to deliver seamless partner experiences and provide real-time support during critical milestones.

NinjaTrader is an industry-leading trading platform and futures broker that provides cutting-edge products and services to empower traders. Since 2003, it has grown to over 2 million users, becoming the number one rated futures brokerage worldwide, with a culture focused on social connection, professional development, and employee recognition.

  • Develop and maintain frontend applications using TypeScript, React, and advanced HTML/CSS practices.
  • Collaborate with the team to understand business value, set priorities, and take ownership of codebase tasks.
  • Participate in daily meetings, perform code reviews, and ensure quality in all deliverables.

Devexperts works with respected financial institutions, delivering products and tailor-made solutions for retail and brokerage houses, exchanges, and buy-side firms. The company focuses on trading platforms and brokerage automation, and they care for their employees with a comprehensive benefits package.

  • Build and maintain a React/TypeScript frontend at real scale, owning complex UI components for route search, filtering, and map visualization.
  • Work closely with backend engineers on API contracts, integrate third-party tools like Auth0 and PostHog, and maintain high performance standards.
  • Ship via GitHub Actions CI/CD pipelines and participate in architecture and UX decisions with genuine self-direction.

Routescanner is the world's leading container logistics intelligence platform, helping shippers and freight forwarders optimize intermodal container routes. They are a growing, lean, senior team focused on clean code and high trust without micromanagement.

US

  • Build a best-in-class web experience for sophisticated retail traders on a new AI-native active trading platform.
  • Ship core active trading workflows including order entry, positions, blotter, watchlists, alerts, and high-density data views.
  • Collaborate with users and backend engineers to design low-latency interactions and AI tool integration.

Clear Street modernizes the brokerage ecosystem with a cloud-native clearing and custody system for capital markets. Founded in 2018, the company supports billions in daily trading volume and fosters a collaborative, high-performance culture with a focus on diversity.

$100,000–$150,000/yr
US

  • Build and own the consumer-facing web app in React, TypeScript, and Next.js.
  • Lean on AI tooling to ship quickly and help make it better as you go.
  • Be fanatical about testing assumptions and judging work by outcomes, with AI speeding you up but not thinking for you.

Cedar helps families achieve homeownership with a proven model that is now scaling. The company values results over hours, straight feedback, and root-cause problem solving, with a small, sharp team.

UK 4w PTO

  • Develop and maintain a React-based platform for internal and cross-team feature integration.
  • Work with CI/CD pipelines, automated testing, and modern JavaScript/TypeScript stacks to ensure stable releases.
  • Collaborate with cross-functional teams to improve developer experience and streamline workflows.

Relay is a fintech platform serving tens of thousands of business users. They are a collaborative, engineering-driven team with a focus on clean architecture and continuous improvement.

$97,000–$125,000/yr
US

  • Design, develop, and enhance modern web applications using React, TypeScript, and related front-end technologies.
  • Collaborate with cross-functional teams including developers, architects, UX designers, and business stakeholders to deliver scalable solutions.
  • Diagnose and resolve application defects, performance issues, and production support requests.

We calm the confusion of IT by guiding the connection between people and technology, helping customers manage inventory, equip workforce, or secure data. Our team is built on diverse backgrounds and perspectives, fostering innovation and collaboration.

$160,000–$180,000/yr
Global Unlimited PTO

  • Drive self-serve product offerings to bring prospective customers into our products and grow new revenue.
  • Design and update systems using good design patterns on both frontend and backend for extensibility and evolution.
  • Ensure data integrity and reliability of frontend surfaces and application stacks.

People Data Labs is a provider of people and company data, integrating thousands of compliantly sourced datasets into a developer-friendly source of truth. The company values extreme ownership and teamwork, focusing on building data products for data teams and independent developers.

US

  • Contribute to building platform tools and services that improve developer productivity across Fandango, Rotten Tomatoes, and Fandango at Home.
  • Develop backend services, APIs, and data models, and build user-friendly frontend experiences using React and Next.js.
  • Collaborate with senior engineers and cross-functional teams to deliver reliable solutions and support healthy production environments.

Versant Media is an industry-changing media and entertainment business home to trusted brands that shape culture and inform audiences. It operates across four core markets with a powerful portfolio of iconic brands including CNBC, USA Network, and Fandango.

Europe US

  • Build and maintain core market data infrastructure in Rust, focusing on ingestion, processing, storage, and serving of high-volume real-time data.
  • Solve practical problems specific to real-time market data, including cross-exchange pricing differences, data quality, and latency.
  • Bring real market data or trading systems knowledge into engineering decisions and communicate clearly with the team.

Douro Labs builds Pyth Pro, real-time market data infrastructure distributing institutional-grade price feeds to exchanges and trading firms. The company has a distributed team across the US, South America, Europe, and Asia, with a strong concentration in Europe, and a culture of independent work and growth.

$170,000–$200,000/yr
Canada Unlimited PTO

  • Design, develop, and deliver high-quality fullstack web solutions covering major product features end-to-end.
  • Work cross-functionally with engineers, product managers, and customer success, with close feedback loops from users.
  • Optimize the Northbeam dashboard for speed, reliability, and performance, while contributing to technical documentation.

Northbeam builds an advanced marketing intelligence platform for eCommerce brands, offering attribution modeling and dashboards. The company is experiencing rapid growth, has strong product-market fit, and values personal growth and excellence in a remote-friendly environment.