Source Job

• Shape the consumer experience by partnering with UX and Payments teams to build a seamless web interface.
• Architect modern workflows including alternative payment integrations and flexible scheduling.
• Drive technical strategy and engineering excellence while conquering tech debt and mentoring fellow engineers.

TrueML is a mission-driven financial software company that uses machine learning to create better digital experiences for distressed borrowers. The team includes data scientists, financial services experts, and customer experience fanatics building technology to ensure nobody gets locked out of the financial system.

• 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.

• Design, build, and iterate on AI agents that interact with data across BigCommerce and partner ecosystems to drive automation.
• Develop and integrate AI assistant features into the BigCommerce control panel for natural language queries and actions.
• Collaborate with product designers and NLP experts to deliver intuitive conversational experiences and proof-of-concept solutions.

Commerce empowers businesses to innovate and grow with an open, AI-driven commerce ecosystem, parent company of BigCommerce, Feedonomics, and Makeswift. We are a team of bold builders and technical trailblazers shaping the future of commerce, with a culture that values collaboration and innovation.

• Own the agent layer of the platform, including architecture, prompts, tool surfaces, and multi-agent orchestration.
• Drive translation and dependency-mapping accuracy across unfamiliar legacy paradigms.
• Write production agent code daily, using subagents and multi-agent workflows as the normal way of working.

LTS applies frontier AI to modernize legacy systems in healthcare and government IT. It is a small, senior engineering team operating with high leverage and a culture of innovation and collaboration.

• You will partner with engineering leadership to evolve foundational architecture for a cloud-native, event-driven telecom platform.
• You will own developer experience, building tooling, CI pipeline performance, and dependency management across a shared monorepo.
• You will develop and manage a small team of senior engineers, championing AI-first development practices and establishing engineering standards.

Wavelo is a SaaS business that modernizes software for telecom providers, helping them scale operations and improve customer experience. As part of Tucows, one of the world's largest Internet services companies, it embraces a people-first philosophy with a remote-first culture.

• Architect production-grade multi-agent frameworks and orchestration layers from scratch.
• Balance rapid prototyping with long-term sustainable architectural foundations.
• Implement rigorous frameworks for benchmarking, prompt engineering, and evaluating agent reliability.

Mozilla Corporation is the non-profit-backed technology company behind Firefox and other privacy-minded products. With over 225 million monthly users, we are a mission-driven organization owned by the Mozilla Foundation, employing thousands of volunteers and collaborators worldwide to build open-source software for a better internet.

• Own the architecture, design, and delivery for your team's platform area, turning roadmap into engineering plans that ship and hold up in production.
• Design and build core parts of a compound AI system spanning agents, LLMs, and RAG, with a focus on reliability, evaluation, and scale.
• Champion engineering best practices, mentor engineers, and partner with product and design counterparts to align on priorities.

Crogl builds fully autonomous AI team members for security operations centers (SOCs), helping organizations secure their digital estates. As a startup with a focus on innovation, they seek senior technical leaders to join their remote team.

• Lead architecture and delivery of distributed cloud-native applications for high concurrency and real-time data needs.
• Design production-grade data pipelines and integrate ML/GenAI capabilities, including RAG and model serving.
• Mentor peers, set engineering standards, and evolve legacy systems into microservices for scale.

Outreach, founded in 2014, is a complete agentic AI platform for revenue teams, powering use cases across sales motions with AI automation. The company serves world-leading enterprises like Databricks, SAP, and Siemens, and promotes diversity through employee resource groups.

• Build Go backend services that broker wallet creation, authentication, and signing at scale.
• Own key recovery and the committee trust model using distributed key generation and secret sharing.
• Operate production services on Kubernetes with observability, alerting, and compliance controls.

Offchain is a blockchain scalability and security company that built the Arbitrum stack, powering the most widely adopted Ethereum scaling solution. Backed by $124 million in funding, the team is a small, high-ownership group of thinkers and doers tackling real-world challenges in decentralized systems.

• Design and build backend services in Golang that integrate with payment processors, gateways, and card networks.
• Own critical money-movement flows end to end: authorization, capture, settlement, refunds, reconciliation, and chargeback/dispute handling.
• Build idempotent, fault-tolerant, auditable transaction processing within a distributed architecture using patterns like transactional outboxes and queues.

Sezzle financially empowers the next generation with interest-free installment plans and cutting-edge fintech. The company is building an innovative, dynamic team passionate about transforming payments and retail.

• Design and build highly scalable platform services to improve reliability and performance of the Chainlink Runtime Environment (CRE).
• Lead development of production-grade backend services and APIs supporting multiple internal stakeholders and platform consumers.
• Drive architectural improvements enabling vertical and horizontal platform scaling while improving workflow execution durability and resilience.

Chainlink is the industry-standard oracle platform bringing capital markets onchain and powering decentralized finance (DeFi). Chainlink Labs, the core developer, is a large global organization with a remote-first culture, tens of billions in transaction value, and partnerships with major financial institutions.

• 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.

• Own the architecture of the Nexus Exchange end-to-end while staying hands-on in production code.
• Lead the engineering org, managing timelines, roadmaps, and resourcing across senior engineers and pods.
• Drive product and customer outcomes with high-frequency iteration and a business-first mindset.

Nexus is a blockchain built to natively embed the world’s financial system into one compounding system, unifying infrastructure across chains. Headquartered in San Francisco with a growing presence in Buenos Aires, the cross-continental team of engineers and cryptographers is backed by investors like Pantera and Lightspeed.

• Design and maintain high-performance backend services in Golang on GCP and AWS for fraud detection and compliance products.
• Build APIs for banking/payment systems and collaborate with cross-functional teams on product development.
• Own the full product lifecycle including testing with Cypress, Junit, or Mockito and maintain user-facing documentation.

Sardine provides fraud prevention and AML compliance solutions using device intelligence, behavior biometrics, machine learning, and AI. The company has raised $145M from top investors and serves over 300 banks, retailers, and fintechs globally, maintaining a remote-first culture with hubs in North America and Brazil.

• Design and harden multi-step, tool-using agent loops for agentic experiences at enterprise scale.
• Drive the vision for code understanding by combining deterministic systems and AI into innovative products.
• Own agent engineering decisions on models, retrieval, context, cost, and latency to improve product quality.

Sourcegraph is the world's most powerful code intelligence platform, providing Code Search and Deep Search to help developers navigate and understand massive codebases. They are a globally distributed team backed by a16z, Sequoia, and Redpoint, and value high agency and direct communication.

• Design and build highly scalable systems supporting millions of transactions across multiple countries and regulatory environments.
• Develop cross-border transaction infrastructure, tax compliance, and international post-purchase experiences.
• Partner with internal logistics, payments, and platform teams to build durable long-term infrastructure.

Whatnot is the largest livestream shopping platform in North America and Europe, enabling sellers to build real businesses across hundreds of categories. We're a remote co-located team of over 1,000 employees, one of the fastest growing marketplaces, and recently named #1 Best Startup Employer in America by Forbes.

• Build and enhance scalable Golang microservices for eligibility, coverage, billing, and client-facing systems.
• Automate operational workflows to reduce manual data handling and improve data accuracy.
• Design self-service tools for finance, operations, and client teams to manage processes independently.

Virta Health aims to reverse metabolic disease in one billion people using technology, personalized nutrition, and virtual care. It is a well-funded startup with over $350 million raised from top-tier investors, partnering with health plans, employers, and government organizations.

• Build and maintain high-performance APIs and microservices in Go for payment processing, fraud detection, and authentication.
• Take end-to-end ownership of features and integrations from design to production rollout and monitoring.
• Work cross-functionally with Product, Compliance, and Business teams to deliver elegant technical solutions.

Yuno is a payment orchestrator that connects businesses to 300+ payment methods worldwide through a single integration. Founded by the team behind Rappi, Yuno is growing fast as a remote-first company with a culture of ownership and collaboration.

• Build enterprise-scale infrastructure using infrastructure-as-code and Kubernetes-native systems.
• Sustain platform health and performance by owning critical systems in production.
• Enable teams and customers to move faster with abstractions and tooling for AI/ML workloads.

Cake makes cutting-edge AI accessible to enterprise teams by removing infrastructure barriers, enabling 10x faster and cheaper AI/ML platform deployment. Backed by top investors, they have a small senior team focused on ownership and operational excellence.

• Lead the architecture and long-term technical roadmap for a global distributed systems platform.
• Pioneer AI-driven development workflows using LLMs to accelerate code generation and automation.
• Mentor senior engineers and drive technical excellence across multiple teams, balancing innovation with reliability.

Twilio is a cloud communications platform that delivers innovative solutions to hundreds of thousands of businesses and empowers millions of developers worldwide. The company fosters a remote-first culture with a strong emphasis on connection and global inclusion.