Source Job

$209,700–$311,400/yr
Global

  • Build fullstack features across search, scenario mining, and agentic tooling.
  • Work directly with model developers and researchers to define and measure success before building.
  • Own features end-to-end, from shaping ideas to shipping robust, maintainable software at scale.

Python TypeScript JavaScript React SQL

20 jobs similar to Full Stack Software Engineer, Evaluation Tools

Jobs ranked by similarity.

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.

$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.

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.

$180,000–$220,000/yr
US Canada

  • Own big parts of the marketplace, including storefront, course platform, and recommendation systems.
  • Experiment with the latest agentic coding tools.
  • Work remotely in a close-knit team with a high degree of ownership.

Maven is a marketplace for practical courses taught by top experts, with a cohort-based model that achieves 80%+ engagement. They have 500+ live courses, $100M+ earned by experts, and a small, high-trust team of 20.

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.

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.

CIQ builds enterprise infrastructure for high-performance computing, AI, and cloud-native orchestration, including Rocky Linux support and related products. It is a company of builders, operators, and open source practitioners serving large enterprises, government agencies, and research institutions.

$175,000–$210,000/yr
US

  • Work across the stack to drive high-leverage projects from concept to completion and produce detailed technical specifications.
  • Up-level the team with expertise in API or system design, cloud infrastructure, healthcare data, or other areas while collaborating with a multidisciplinary team.
  • Build and refine user-facing features, establish consistent APIs, and write unit, integration, and end-to-end tests for new features.

Curai Health is a healthcare company that uses artificial intelligence and clinical expertise to make care more affordable, accessible, and effective. They are a mission-driven team of talented colleagues committed to collaborating closely and driving meaningful impact in healthcare.

Canada

  • Design and maintain full-stack applications, backend services, and RESTful APIs using Python, JavaScript/TypeScript, and Go.
  • Build and optimize AWS infrastructure, CI/CD pipelines, Docker/Kubernetes, and monitoring systems for reliable releases.
  • Collaborate with product, QA, and engineering teams to troubleshoot production issues and improve scalability and security.

This partner company develops a cloud-based platform for modern fleet management and connected technologies. It fosters a high-trust, collaborative culture focused on accountability, ownership, and continuous learning.

APAC

  • Design, build, and maintain scalable full-stack web applications using JavaScript, TypeScript, React, and Node.js.
  • Architect robust web solutions and lead the creation of RESTful APIs with modern state and component lifecycle management.
  • Implement automated testing, event-driven analytics, and cross-team collaboration to deliver production-ready features.

We are a Managed Nearshore Teams provider headquartered in Austin, specializing in building and embedding high-performing software development teams. We deliver customized solutions by connecting global talent with innovative client projects, and our culture values expertise, creativity, and impact.

$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.

$141,000–$184,000/yr
US 18w maternity 10w paternity

  • Build and maintain Typescript driven web applications with in-house and open source frameworks.
  • Collaborate with teams to design, develop, test, implement, and support full-stack solutions.
  • Perform code reviews and technical documentation for peers.

Evolve makes vacation rental easy for everyone. The team runs on curiosity, communication, and accountability, striving for exceptional experiences for owners and guests.

$126,279–$184,068/yr
US Unlimited PTO 12w maternity 12w paternity

  • Lead complex software development projects as a technologist, building trust with clients and delivering high-quality solutions.
  • Mentor and share knowledge with colleagues while actively seeking feedback and communicating empathically with stakeholders.
  • Work pragmatically to balance technology choices and lead architecture discussions within a collaborative team.

8th Light is a technology solutions consultancy that partners with organizations from startups to large companies, building durable software solutions. The company fosters an open, collaborative culture grounded in honesty and continuous learning, with a distributed team across the US, Canada, and the UK.

$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.

North America Unlimited PTO

  • Build patient-centered products as a full-stack engineer while advocating for privacy, security, and access to care.
  • Collaborate with Product Managers, Designers, and stakeholders to deliver high-quality, extensible solutions.
  • Mentor fellow engineers and contribute to technical standards through code reviews and documentation.

Wisp is a healthcare company on a mission to democratize accessible, high-quality healthcare for women by bringing urgent care, ongoing support, and expert guidance together in one place. They foster a remote-first culture focused on collaboration, mentorship, and employee well-being.

$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.

Global

  • Build full-stack tools for reviewing tasks, inspecting agent trajectories, and checking graders.
  • Create dashboards and metrics to surface quality trends, failure modes, and review health.
  • Work with QNI and research engineers to scale quality workflows into reliable production products.

HUD builds infrastructure to create RL training data and evals for frontier AI agents, as well as a marketplace to sell these to frontier labs. The team is ~25 people, mostly full-time in-person but some remote, with backing from top VCs and YC W25.

$85,000–$115,000/yr
US

  • Build and scale automated data pipelines across analytics, legal, and commissions.
  • Integrate CRM, billing, and finance systems using custom APIs and data pipelines.
  • Ship and maintain internal applications and deploy containerized AWS services.

LeanTaaS builds AI-powered software that helps hospitals optimize capacity by reducing wait times and costs. With over $300 million in funding from top investors, the company serves more than 190 health systems and employs a culture focused on innovation and operational excellence.

US Unlimited PTO

  • Break down larger projects into individual tasks and deliver them in phases.
  • Collaborate with product, design, and analytics to make risk-aware decisions.
  • Support operations by creating metrics and participating in on-call efforts.

Affirm exists to provide clear, predictable pay-over-time solutions with no hidden fees, connecting consumers with merchant partners through a personalized shopping experience. As a remote-first company, Affirm values transparency, flexibility, and inclusion, offering comprehensive benefits and opportunities for growth.

$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.

Europe

  • Own problems end-to-end across Matomo Core, from customer insight to shipped improvements.
  • Work across PHP, MySQL, JavaScript, Vue.js, and TypeScript to build a widely used analytics platform.
  • Use AI-assisted development to move faster while maintaining high standards for security and privacy.

Matomo builds privacy-friendly, open-source web analytics that gives organizations full ownership of their data. They are an independent, profitable company with a small, collaborative team that values transparency and product quality.