Source Job

US

  • Design and build a next-generation reliability platform for Affirm's production systems, blending distributed systems engineering with AI-assisted development.
  • Create AI agents and a centralized command center to assist with incident triage, root-cause analysis, and unified system health visualization.
  • Own projects end-to-end, from requirements to rollout, collaborating with partner teams to build powerful, simple solutions for developers.

Python AI-assisted Development Distributed Systems API Design LLMs

20 jobs similar to Software Engineer II, Backend (Infrastructure Platform)

Jobs ranked by similarity.

Europe

  • Ship fast and well: Deliver a new AI agent every 6 weeks, owning the full backend and AI logic from scoping to deployment — balancing speed with reliability and minimal technical debt.
  • Build for the long term: Architect pragmatic LLM guardrails and future-proof components that hold up in a regulated banking environment and don't need rewriting three months later.
  • Leverage AI daily: Use AI coding tools (Cursor, Claude Code, Copilot…) for ~70% of your coding to review, refine, and ship features faster.

Qonto is creating the freedom for SMEs to succeed by delivering Europe's leading finance workspace with banking at its core, augmented by financial tools. Founded in 2017, Qonto has grown to 1,600+ Qontoers serving over 600,000+ customers across 8 European countries and has been profitable since 2023.

$125,000–$175,000/yr
Canada

  • Break down larger projects into individual tasks and deliver them in multiple phases.
  • Collaborate with product management, design & analytics by participating in ideation.
  • Contribute to a sense of community on your team by engaging in growth and development activities.

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. Affirm is a remote-first company.

US Unlimited PTO 18w maternity 12w paternity

  • Identify and prototype high-leverage AI opportunities across engineering, GTM, and operations to improve revenue, efficiency, and quality.
  • Partner with functional owners to build internal workflow automations, prompt systems, and AI-enabled tools using approved platforms like Claude Code and Anthropic API.
  • Document and share prototypes through demos and showcases, setting the standard for responsible, visible AI building.

Chainguard delivers hardened, secure builds of open source software for enterprises. Backed by leading investors, it serves Fortune 500 clients including OpenAI and Snap, and fosters a values-driven remote culture focused on security and innovation.

US

  • Lead the design and development of core platform features using Python and an API-first approach.
  • Build scalable, reliable backend services that power our applications, integrating seamlessly with a modern cloud-based architecture.
  • Collaborate with design and product teams to ensure that what we’re building is scalable, maintainable, and secure.

Agiloft is a global leader in data-first contract lifecycle management (CLM) software, helping organizations manage the end-to-end contract process. The company has a vibrant culture, supports multiple Employee Resource Groups (ERGs), and values work/life balance.

Global

  • Build and ship features across the Champion platform, improving developer experience and maintaining agent infrastructure.
  • Support Applied AI engineers in building, deploying, and operating Champions, reviewing agent implementations and contributing to engineering guides.
  • Design and build Champion agents for business-unit use cases, including writing system prompts and configuring deployment setups.

Redzone is the #1 Connected Workforce Solution for manufacturers, improving plant efficiency and empowering front-line workers. The company combines strong leadership, manufacturing expertise, and an incredible technology team to create great products and customer outcomes.

United States Unlimited PTO

  • Design and build scalable backend systems powering AI agents in real-time enterprise environments.
  • Develop agent orchestration frameworks and low-latency inference pipelines integrating LLMs and SLMs.
  • Build robust APIs and work with cross-functional teams to productionize agentic AI at scale.

Level AI is an AI-native platform that helps enterprises transform contact centers into engines of customer intelligence and operational efficiency. The company is a Series C startup backed by Battery Ventures and ENIAC, based in Mountain View, California, with a globally distributed team.

Global

  • Build repeatable systems for creating AI-powered digital products using existing platforms and APIs.
  • Integrate AI capabilities with the tech stack and create end-to-end flows from product creation to payment processing.
  • Deploy successful products across an affiliate network and iterate based on conversion performance.

SnappyCX builds AI-powered digital products and systems. They are a hands-on, practical team focused on shipping working solutions and repeatable systems, with a culture of rapid implementation.

US Canada

  • Build and maintain backend cloud services for Tile and other connected devices, including telemetry ingest and state management.
  • Own well-defined features and designs, collaborating with firmware, mobile, and platform teams.
  • Use AI-native engineering practices daily, including AI coding assistants for coding, testing, and debugging.

Life360’s mission is to keep people close to the ones they love through a mobile app, Tile tracking devices, and Pet GPS tracker. With about 97.8 million monthly active users and over 500 remote-first employees, we’ve become a household name for families and friends.

$180,000–$250,000/yr
US

  • Build our core Python/Rust platform: request routing, AI workload orchestration, scheduling, GPU autoscaling, large scale file storage, queueing, etc
  • Produce forward designs for platform evolution as we scale to 100x current traffic and need to provide low latency across the world
  • Leverage AI to an extreme level to automate the mundane parts of building complex but reliable systems

Fal is building the infrastructure, tools, and model access to move from AI idea to production. They aim to be the unified platform where high-performance inference, orchestration, and observability come together to unlock new categories of AI-native products.

Europe

  • Break down larger projects into individual tasks and collaborate with others to ensure timely delivery.
  • Collaborate with product management, design & analytics by participating in ideation.
  • Support the operations and availability of your team’s artifacts by creating and monitoring metrics.

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. They are a remote-first company that values its employees through benefits and creating an inclusive environment.

US

  • Build the EHR: Create features and systems that superpower practitioners and enable platform scaling.
  • Take a problem from idea to production with continuous daily shipping.
  • Use AI to get more done and help the team improve at building this way.

Careway builds an advocacy-first telehealth platform to help seniors overcome complex health and social challenges. The company is a small, early-stage team founded by a former Google engineering manager, an AI product lead, and a physician with 30+ years of experience.

US

  • Shape the product hands-on, partnering with Product to design and deliver core application components and critical services.
  • Build product capabilities end-to-end using Python, Next.js, and modern backend patterns, leveraging AI-assisted development tools.
  • Own technical readiness for production, including reliability, observability, performance tuning, and incident response preparedness.

CentralReach is a leading provider of autism and IDD care software for Applied Behavior Analysis (ABA), multidisciplinary therapy, and special education. Trusted by more than 200,000 users, we enable therapy providers, educators, and employers to scale the way they deliver ABA and related therapies.

$194,000–$228,000/yr
US

  • Design, build, and ship LLM-powered features and agentic workflows for Gametime users.
  • Build and maintain evaluation frameworks and prompt testing pipelines for AI-powered experiences.
  • Contribute to orchestration layer, including agent routing, tool use, and multi-step workflow coordination.

Gametime helps people connect through shared live experiences. They operate platforms on iOS, Android, mobile web, and desktop, supporting over 60,000 events across the US and Canada, fostering a collaborative and inclusive environment where diverse perspectives are valued.

$91,250–$127,750/yr
Canada

  • Develop AI systems that automate dispute and chargeback handling using structured evidence and business logic, creating a better experience for our customers.
  • Build models that automate refunds, getting money back to our customers faster.
  • Build and maintain evidence extraction pipelines that process unstructured data using LLM-powered workflows to produce structured, actionable outputs.

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. They are a remote-first company with competitive benefits and focus on an inclusive interview experience.

US UK

  • Design and build integrations between AI platforms and corporate business systems, including API development and workflow automation.
  • Manage GCP resources supporting the AI environment, including APIs, billing, and access controls.
  • Partner with Enterprise Security to support secure AI-assisted application development ("vibe coding") processes.

Iterable is the leading AI-powered customer engagement platform that helps brands like Redfin and SeatGeek create personalized experiences. With nearly 1,200 brands across 50+ countries, the company fosters a culture of innovation, collaboration, and inclusion, and has been recognized as one of Inc's Best Workplaces.

US

  • Write behavioral specs, architectural constraints, and feature requirements that agents implement against.
  • Build and maintain harness infrastructure including structural tests, linting rules, and CI gates.
  • Design validation systems where agents write the tests and you verify features work from the user's perspective.

Bolo.ai builds generative AI systems for the energy industry, making daily work faster, safer, and better for heavy industry workers. We have Fortune 500 contracts, production deployments, and growing enterprise demand, and we're scaling with a small, senior-leaning engineering team.

Europe

  • Design and build production-grade AI systems including RAG pipelines, agentic workflows, and LLM integrations.
  • Own backend services, APIs, and data pipelines end-to-end with Python as the primary language.
  • Translate ambiguous client requirements into scoped technical decisions and delivery plans.

Provectus is a consulting and professional services firm specializing in AI and ML solutions, serving as an AWS Premier Consulting Partner and strategic partner of Anthropic. They build custom, production-grade AI for global enterprises and operate with a remote-first culture emphasizing autonomy and ownership.

AI Engineer

LMI
$111,426–$192,890/yr
US

  • Design and develop data pipelines, scoring algorithms, and API infrastructure to power AI-driven matching and recommendation capabilities.
  • Build and maintain integrations between the matching engine and an existing program management platform.
  • Collaborate with SMEs to build, test, and refine user-configurable matching logic.

LMI is dedicated to accelerating government impact with innovation and speed, bringing commercial-grade platforms and mission-ready AI to federal agencies. Headquartered in Tysons, Virginia, they are committed to delivering impactful results that strengthen missions and drive lasting value.

Global

  • Build, test, ship, and maintain high-quality software across Seso’s platform.
  • Use modern AI tools to improve your own engineering speed and quality across coding, debugging, testing, documentation, refactoring, and technical exploration.
  • Help design and build product features that use LLMs, agents, structured data extraction, summarization, recommendations, search, classification, document understanding, or other AI-enabled capabilities.

Seso is modernizing the back-office for farms by building the premier platform for agribusiness to hire and manage their workforce and improve the lives of agricultural workers. They have raised over $60M from Tier I investors and have been recognized with awards including Forbes Rising Stars and Andreessen Horowitz's American Dynamism 50.

US

  • Design and build small, high-impact full-stack tools from concept to deployment.
  • Own the full SDLC: design, development, testing, deployment, and iteration.
  • Leverage AI-assisted development tools to accelerate delivery and code quality.

Crosslake Technologies helps private equity investors and portfolio company leaders drive value creation through technology. The company operates with small, highly capable engineering pods and values service, curiosity, credibility, commitment, and creativity.