Source Job

Global Unlimited PTO

  • Build and maintain application features across frontend and backend using Python, React, and TypeScript.
  • Collaborate with the engineering team to ship production-quality code and participate in architecture decisions.
  • Troubleshoot full-stack issues and support internal engineering initiatives.

Python React TypeScript JavaScript Go

20 jobs similar to Sr. Application Engineer

Jobs ranked by similarity.

US

  • Lead frontend architecture, including component design, state management, and performance for React and TypeScript interfaces.
  • Build and extend Python APIs and collaborate on data contracts, API design, and integration patterns.
  • Drive frontend standards, mentor engineers, and support internal tooling for operations and compliance.

Astra builds mission-critical infrastructure for moving money at scale, processing billions annually with 99.9%+ uptime. They are a remote-first, small, high-output team focused on collaboration and professional growth.

$145,500–$235,400/yr
US

  • Build and ship end-to-end product capabilities across frontend and backend systems.
  • Develop user experiences using TypeScript and React, along with services and APIs using Go, Python, or comparable tools.
  • Collaborate with Product, Design, Data, and engineering partners to balance usability, performance, reliability, and time to value.

LaunchDarkly provides a feature management platform that helps engineering teams ship software and AI with speed, safety, and control. They are a growing company that values humble, open, collaborative, and kind teams.

India

  • Own the platform end-to-end as a full-stack generalist, designing, building, shipping, and operating product capabilities across frontend, backend, and infrastructure.
  • Lead engineering efforts toward ISO 27001 and SOC 2 readiness by translating compliance requirements into practical controls.
  • Use AI-assisted development tools and independently validate generated code for correctness, security, and performance.

They are building an AI-native professional services automation platform. As a startup with a small team, they are seeking their first in-house engineering hire and offer high ownership and autonomy.

$90,000–$115,000/yr
Global Unlimited PTO

  • Own the technical backbone of the GTM team, including the website, GTM Brain, RFP engine, and analytics dashboard.
  • Develop and maintain production code in TypeScript/React and Python, with a focus on automation and AI tools.
  • Manage RFP/RFI processes, technical documentation, and program management of the sales motion, working directly with the founder and GTM team.

Sirona Medical builds a unified, AI-powered operating system for radiology workflows, helping radiologists work faster and more efficiently. The company is San Francisco-based with employees around the world and is well-funded, focused on better patient care.

US Singapore

  • Build product-facing tools for browsing environments, inspecting trajectories, and understanding model behavior.
  • Develop vendor-facing workflows to create, submit, test, and iterate on RL environments and training data.
  • Create dashboards and observability tools surfacing environment quality, eval results, and pipeline health.

This company builds a reinforcement learning data engine for frontier AI labs, creating and iterating on training data. They have offices in San Francisco and Singapore, offering a culture that values independence and high agency.

  • Build interfaces for AI-powered products used by millions, including real-time chat, inline agent suggestions, document editors, and agent builder tools.
  • Design and implement rich, responsive user interfaces in React and TypeScript, working across the Superhuman product suite.
  • Tackle hard interaction design problems: streaming content, complex state management, and multi-surface interactions with a strong emphasis on documentation and testing.

Superhuman builds an AI productivity platform that works across every surface, including Go (proactive AI assistant), Mail, Docs, and enterprise controls. The company is remote-first and values autonomy, trust, and a highly collaborative culture, with team member resource groups like BIPOC, LGBTQIA+, women, and parents.

$300,000–$500,000/yr
Global

  • Own products and systems end to end, from ambiguous customer problems through architecture, implementation, and launch.
  • Build reliable backend systems for real-time bidding, payments, vault workflows, and partner integrations.
  • Use AI deeply to prototype, build, and iterate, and own the quality of what ships.

Alt unlocks the value of alternative assets, starting with the $5B trading-card market, letting collectors buy, sell, vault, and finance their cards in one place. Backed by leaders from Stripe, Coinbase, and pro athletes, it's a remote-first startup focused on real-time pricing and AI-native workflows.

$103,882–$134,430/yr
Canada

  • Take ownership of technically complex, mission-critical areas, defining technical strategy for new products and platform capabilities.
  • Design and ship full-stack features end to end, working across backend, frontend, and mobile to deliver AI-powered products.
  • Partner with product, design, and customer-facing teams to translate real-world problems into measurable outcomes and mentor fellow engineers.

Samsara is the pioneer of the Connected Operations Cloud, helping organizations harness IoT data to improve safety, efficiency, and sustainability of physical operations. They are a public company with ~$2B ARR, growing 30%+ year over year, and foster a culture of ownership, customer focus, and long-term thinking.

US

  • Implement features that improve MDLinx and drive user impact, with ownership growing over time.
  • Apply software engineering best practices including automated testing, clean code, and peer review.
  • Read AI-generated plans and code critically, and identify work for AI-assisted automation.

M3 is a Japanese global leader in healthcare technology and research solutions, operating physician websites with over 5.8 million members. MDLinx, an M3 company, focuses on transforming pharmaceutical brand promotion through omnichannel engagement.

$185,300–$276,000/yr
US Unlimited PTO

  • Lead end-to-end development of product features from design through deployment and ongoing support.
  • Architect and build scalable backend services and APIs using TypeScript/Node.js.
  • Collaborate cross-functionally with Product, Design, CX, and Integrations to deliver customer-facing functionality.

Meadow is a modern payments platform for higher education that simplifies the entire student financial experience. They are a highly ambitious, talented team transforming the $600 billion higher education payments industry.

$135,000–$165,000/yr
US Unlimited PTO

  • Build full-stack features for the loan origination platform, including intake, decisioning, servicing, and collections.
  • Create internal tooling and data pipelines for loan management, compliance, and portfolio analytics.
  • Use AI-assisted development and collaborate with legal, data, and school stakeholders to deliver high-quality, compliant software.

Clasp is a mission-driven fintech expanding education access via student loan repayment and lending technology for colleges and employers. We're a venture-backed Forbes Fintech 50 startup focused on social impact.

Global

  • Own full-stack features from problem understanding to production deployment, collaborating with product and stakeholders.
  • Build high-quality frontend interfaces and robust backend services using React, Go/Node.js/Python, and PostgreSQL/Firebase.
  • Leverage AI tools for coding, automation, and agent development to accelerate delivery and improve product quality.

Bia manages energy for over 3,700 companies in Latin America. They are a growing startup with a builder culture, emphasizing ownership and autonomy.

$71,500–$82,500/yr
France

  • Design and develop full-stack features using React, TypeScript, and backend languages like Java or Node.js.
  • Drive architectural decisions, backlog grooming, and technical leadership while leveraging AI coding assistants.
  • Write automated tests, conduct code reviews, and deploy features in production using GitLab, AWS, and Kubernetes.

CoderPad is the global leader in the technical interview space, serving over 4,000 customers in 165+ countries. The company has a remote-first, distributed culture with teams in EMEA and US, focusing on building and scaling products for technical interviews.

Europe

  • Deliver end-to-end functionality across a TypeScript/React front end and a Golang backend.
  • Build products for partner integrations, including wallet systems and game systems in a certified environment.
  • Design and build APIs (GraphQL, gRPC, REST) and shape the architecture of a young platform on AWS.

Oddin builds products that partners integrate into their own platforms, focusing on AI-first development where 80-90% of code is generated with AI. They are a young startup with a collaborative, autonomous product team and no strict processes.

US

  • Design, develop, deploy, and demonstrate feature-rich applications for Army test and evaluation.
  • Conduct research and create products supporting high-speed acquisition logistics initiatives.
  • Learn emerging technologies and programming tools to keep you and your team well equipped.

DS2 provides full life-cycle software engineering services to DoD, federal, and commercial clients. The company emphasizes teamwork, customer focus, and a culture where working hard and playing hard are both important.

Europe

  • Design and develop next-generation browser-based security features used by millions of people worldwide.
  • Provide technical leadership, architecture, and mentoring while collaborating with Product, UX, and QA teams.
  • Design integrations across complex systems and apply AI-enabled workflows to drive quality and performance.

The company creates browser-based security features that protect millions of consumers from online threats. It is a distributed, collaborative engineering organization with a strong culture of autonomy, trust, and engineering excellence.

$5,000–$9,000/mo
Global

  • Design, build, and maintain production web applications covering both frontend and backend layers.
  • Collaborate with cross-functional teammates to scope, plan, and ship features end to end.
  • Troubleshoot and resolve issues across the stack in a timely manner.

A manufacturing-sector company building production-grade web applications to support its operations. They value clean code, collaboration, and a remote-first culture with engineering standards.

Global Unlimited PTO

  • Build application components and pages with modern frontend frameworks.
  • Implement real-time data feeds and pipelines using WebGPU, MQTT, and Redpanda.
  • Design data models and integrate machine learning models into the application.

Spear AI is a defense contracting company that builds a data management and artificial intelligence platform for maritime domain awareness, including sonobuoy sensors and SONAR data processing. The team is small with a flat organizational structure where employees collaborate directly with leadership and focus on mission-critical work.

$175,000–$215,000/yr
US Unlimited PTO

  • Architect production backend services and data models for financial workflows.
  • Build full-stack features and AI agent-powered credit risk operations.
  • Use modern AI-assisted development tools and contribute to engineering standards.

Gynger provides embedded financing and cash flow management for B2B tech vendors, using AI agents for credit risk. Founded in 2021 and based in NYC, the Series A startup has raised $20M and is a Built In Best Place to Work.

US

  • Design, develop, and implement AI-powered features to improve patient engagement, care coordination, claims management, and operational efficiency.
  • Use Claude Code and related AI tools to build, test, troubleshoot, and maintain full-stack software products in a remote Agile environment.
  • Collaborate with product managers, designers, engineers, and clinical stakeholders to translate requirements into scalable, user-focused solutions.

VetsEZ, through its EZLabs division, specializes in AI-driven healthcare products for federal government modernization, focusing on patient engagement, care coordination, and claims management. The company fosters a fast-paced, remote Agile culture and is an equal opportunity employer.