Source Job

Mexico 0w PTO

  • Build and maintain the full-stack matching-to-transaction spine, including Go backend services and React/TypeScript frontend surfaces for Capacity Matching and the Inflect Gateway.
  • Evolve algorithmic matching, confidence scoring, and cost-optimization logic to satisfy precision and explainability requirements, while serving as backup owner for RouteFinder and Site Prover clusters.
  • Partner with data and lead-to-cash pods, deliver well-tested observable code, and conduct pull-request assessments under pod technical direction.

Go React TypeScript PostgreSQL AWS

20 jobs similar to Sr Fullstack Engineer - Capacity & Matching Consultant

Jobs ranked by similarity.

$5,000–$6,500/mo
Mexico

  • Architect, build, and maintain Go-based backend services and provider adapters for live pricing and availability.
  • Contribute to self-serve onboarding frameworks, GUI tooling, validation guardrails, and LLM-assisted integrations.
  • Own assigned adapter surfaces end-to-end with high availability, observability, and automated resiliency.

Inflect is a US-based advisory and marketplace that simplifies how companies buy and sell digital infrastructure such as datacenter, cloud, and network services. They are a mission-driven team focused on removing procurement friction and unlocking innovation for businesses.

$3,000–$3,200/mo
Latin America

  • Build and maintain a TypeScript monorepo including a Next.js web app, Expo mobile app, and Cloudflare Worker.
  • Manage a PostgreSQL + Prisma data model and background systems such as webhook handlers, queued messaging, and scheduled jobs.
  • Own security-sensitive paths and the AI layer, including LLM tool-calling over financial data and proactive insights.

GoFasti is a Talent-as-a-Service company that connects world-class developers and designers from Latin America with first-class companies around the globe. They make remote work remarkable and foster a culture of continuous learning, proactive communication, and strong attention to detail.

$3,000–$3,200/mo
Latin America

  • Design and develop scalable, responsive web applications using React, TypeScript, Next.js or Vite.js.
  • Build and maintain backend services and APIs with Node.js and NestJS, integrating databases and third-party services.
  • Optimize performance, scalability, and developer experience while participating in code reviews and technical discussions.

GoFasti is a Talent-as-a-Service that bridges world-class developers and designers from Latin America with first-class companies globally. The company operates remotely with a focus on connecting top talent to high-growth opportunities.

$5,000–$6,500/mo
Brazil

  • Design, build, and maintain Go-based backend services and provider adapters for network, bare-metal/GPU, and data providers.
  • Contribute to self-serve onboarding frameworks including schema mapping, GUI tooling, validation guardrails, and LLM-assisted integration.
  • Collaborate asynchronously across distributed functions and own assigned adapter surfaces end-to-end with observable, well-tested services.

Inflect is a US-based advisory and marketplace transforming how companies buy and sell digital infrastructure such as data center, cloud, and network services. The team works across Brazil, Poland, and the US with a culture of autonomy, high impact, and async collaboration.

North America Unlimited PTO

  • Take deep ownership of systems and product areas, becoming the go-to technical expert for what you own.
  • Architect, build, and maintain highly available, scalable REST APIs and backend services across distributed systems.
  • Build agentically with AI coding tools, staying at the forefront of emerging AI tooling and practices.

Postscript is an AI messaging platform for Shopify brands, helping e-commerce marketers drive revenue through SMS marketing and AI features. Backed by Greylock and Y Combinator, the company has been fully remote since 2018 and serves 20,000+ Shopify brands with a culture of ownership and AI-first development.

$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.

  • Design, build, and ship full stack features for our digital health platform.
  • Own major parts of the codebase and lead project execution with cross-functional teams.
  • Write clean, tested, high-performance code while elevating engineering standards.

Nourish is an AI-native digital health system that matches patients with dietitians, physicians, medications, lab testing, and AI agents for insurance-covered care across all 50 states. Founded four years ago, it has completed millions of appointments, tripled yearly, and raised $215M, fostering a high-bar, no-ego culture.

$71,500–$89,500/yr
Spain

  • Lead a full stack engineering team, providing technical direction and mentoring engineers while remaining hands-on with the code.
  • Design and deliver production-grade applications across front-end, back-end, and cloud, using Go, React, and AWS.
  • Drive architecture, code quality, and CI/CD improvements, ensuring scalable and maintainable systems.

Mitek is a global leader in digital and biometric identity authentication, fraud prevention, and mobile deposit solutions. We are a publicly traded company with over 7,500 organizations worldwide and a culture focused on delivering, learning, and caring.

Global 2w PTO

  • Architect and build scalable services across transaction matching, the cellar pipeline, and offer ingestion using Go and Postgres.
  • Own features end-to-end through Kard's Shape Up cycle: discovery, pitch writing, implementation, and production rollout.
  • Lead by example: make decisive technical calls and foster collaboration across Product, Design, and Engineering to achieve strategic goals.

Kard builds commerce media infrastructure connecting financial institutions, merchants, and platforms via data and merchant-funded rewards. They are a remote-first team with core values of Initiative, Openness, and Humility, fostering an inclusive and dynamic work environment.

Poland

  • Solve complex problems and own the success of your solutions as you architect, build, test, and deliver full-stack products.
  • Communicate, collaborate, and develop with engineers, platform teams, product managers, designers, and support teams.
  • Build upon skills across technologies such as Go, GraphQL, Typescript, React, and MySQL, while owning the operational health of production systems.

Samsara is the pioneer of the Connected Operations Cloud, a platform that helps organizations harness IoT data to improve safety, efficiency, and sustainability of physical operations. As a recently public company, Samsara fosters a culture of growth mindset and collaboration, with a team of builders focused on long-term impact.

$5,000–$9,500/mo
Argentina

  • Design and develop software applications in Golang and React, building distributed architectures that scale.
  • Coordinate with internal stakeholders to design market-winning products and deliver high-quality features with robust metrics.
  • Mentor engineering teammates to elevate their skills and lead small development teams to bring projects to market.

Sezzle is a fintech company revolutionizing the shopping experience with interest-free installment plans that make shopping smarter and more accessible. They are building an innovative, dynamic team of unique, purpose-driven individuals passionate about pushing boundaries in tech.

$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.

$150,000–$220,000/yr
Americas

  • Design and deliver features across the full stack with direct impact on the product and finance-focused users.
  • Work closely with technical leadership to help establish engineering practices and contribute to system design.
  • Own complex technical problems end-to-end in a remote-first, collaborative environment.

The company builds AI-native financial planning and analysis software. It is an early-stage startup with a small team that values autonomy and thoughtful engineering.

Ukraine Global 4w PTO

  • Build the engineering function for JustDone, enabling fast experimentation and stable systems.
  • Lead 15 skilled engineers, making key architectural decisions for web, native apps, and browser extensions.
  • Drive AI-native engineering, mentor the team, and ensure infrastructure reliability.

Boosters is a Ukrainian product company creating global products in Productivity and EdTech that serve 60 million people. The company values long-term systemic impact and has a culture of self-improvement and high standards.

$200,000–$275,000/yr
North America

  • Improve the product interface and accelerate releases to production.
  • Take on backend-leaning full stack work over time, including infrastructure and systems.
  • Own features end to end from architecture through deployment and reliability.

They are an AI engineering design software startup building tools for physical systems, engineering design, and simulation. They are a fast-moving startup with a culture that values ownership, AI-assisted development, and shipping collaboratively.

$85–$94/hr
US

  • Design, build, and ship features across front-end and back-end services.
  • Write clean, well-tested, maintainable code and participate in code reviews.
  • Improve performance, reliability, and scalability of existing systems.

We are a technology firm that connects skilled professionals with contract opportunities in the software industry. We pride ourselves on a collaborative culture that values flexibility and high-quality work.

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.

Global

  • Set technical direction across Coder’s agent harness, integrations, and workflows.
  • Design and build production systems in Go, with work across React and TypeScript where needed.
  • Lead complex projects from early ambiguity through production.

Coder is a leading platform for AI development infrastructure, enabling enterprises to run human and AI-driven workflows in secure, governed environments. The company provides self-hosted, agent-ready workspaces and fosters a collaborative, AI-forward culture.

US

  • Own the data layer: design Postgres schema, migrations, and enforce tenant isolation and data governance.
  • Build for multiple regions: design region-aware architecture and enforce data residency.
  • Own the API surface: design public APIs with versioning, deprecation, and backwards compatibility.

Nametag helps companies verify the real person behind high-risk workforce actions, from account recovery to identity checks, before attackers can exploit the gap. They are a remote-first, US-based team with meaningful equity ownership and flexible schedules.

EMEA

  • Design and deliver a scalable, highly available, resilient, and secure cloud-base infrastructure.
  • Collaborate with cross-functional teams to define, design, and ship application features.
  • Ensure the performance, quality, and responsiveness of applications and infrastructure.

ClickHouse is a real-time analytics database company that provides a cloud platform for managing and querying data. The company is globally distributed with over 25 countries, remote-friendly, and values a culture of continuous improvement and collaboration.