Staff Software Engineer, Frontend

Breeze

Are you passionate about solving complex challenges in the fintech space? We’re looking for talented individuals to join our dynamic startup, backed by Sequoia Capital. We’re building the universal payment layer to unify all currencies—fiat and crypto—so businesses and consumers can transact seamlessly. If you're passionate about creating innovative solutions in a dynamic, fast-paced environment, we want to talk to you. We are hiring a Staff Software Engineer! As a Software Engineer at Breeze, you’ll take ownership of building and scaling the systems that power our payments and fintech platform. You’ll work across the stack using modern technologies to deliver secure, high-performance solutions while influencing technical direction and product strategy. In this senior role, you’ll collaborate closely with product, design, and fellow engineers, mentor teammates, and help shape the engineering culture as we grow. This is a hands-on opportunity to have a major impact at a fast-moving, Sequoia-backed startup. What You’ll Do: * Work on building our payment system, ensuring scalability, security, and performance. * Engage in fullstack development with React.js and TypeScript on the frontend, and Node.js and TypeScript on the backend, using serverless infrastructure. * Collaborate closely with cross-functional teams to deliver high-impact solutions. * Take ownership of your work as a product engineer, influencing both technical direction and product design. * Communicate effectively with stakeholders to ensure alignment on goals and outcomes. * Adapt to new challenges in a dynamic startup environment where we move fast and innovate constantly. What We're Looking For: * At least 9 years of professional experience in software engineering, ideally in the fintech or payments industry and in fast-paced or startup environments. * Strong problem-solving skills and attention to detail, with a track record of owning and delivering complex features or systems. * Excellent communication skills – critical for working closely with cross-functional teams and contributing to product decisions. * A deep understanding of building scalable, reliable systems and familiarity with cloud-based or serverless infrastructure. * Experience in cryptocurrency or blockchain is a plus. * A product-focused mindset and a drive to build high-quality, user-centric solutions. * A passion for working in a dynamic startup environment and solving complex challenges. * We have a high hiring bar for engineers and are looking for top talent. Our Culture: * Fast-paced and dynamic – We’re a growing startup that moves quickly. * Tech-driven – We leverage technology to address our users’ biggest challenges. * Ownership and communication – We value people who take full ownership and communicate well across teams. * Continuous learning – You’ll have the opportunity to work alongside industry experts and enhance your expertise in risk management. Why Join Us: * Competitive salary + equity plan * 21 days PTO * Benefits: annual medical allowance, productivity budget, gym membership & wellness subsidy * Annual team retreat trip * Be part of a team backed by Sequoia Capital with a healthy runway. Requirements: * 9+ years of relevant software engineering experience, ideally in the fintech or payments industry and in fast-paced or startup environments. * Proficiency in modern backend development.  * Exposure to serverless infrastructure is a plus. * Bachelor's degree or equivalent practical experience. * Work visa sponsorship available. Apply now and help us build the future of payments at a global scale!

Elyos AI

About Elyos AI We’re building the next generation of customer service with AI Agents. Our agents answer calls, reply to emails and WhatsApp messages, make bookings, take payments, and operate the CRM in the same way a human would. We founded Elyos in June 2023 and took part in the Y Combinator S23 batch. Our founders spent four months in San Francisco living and breathing AI. Since then, we’ve been growing revenue ~30% month on month and shipping fast. It’s been wild so far - and we’re just getting started. We recently raised a $13m series A to turbocharge our growth. At Elyos, we’re building AI voice agents that help trades businesses run smoother, scale faster, and deliver better customer experiences. As one of our founding engineers, you won’t just build software - you’ll shape the way Elyos works, interacts with customers, and grows. If you love building things from the ground up, solving complex technical challenges, and working with cutting-edge AI tech, you’re in the right place. WHAT YOU’LL DO * Build and ship core product features across our stack (Python, TypeScript, cloud infra, event-driven systems, third party integrations). * Own the lifecycle: work directly with customers to understand their needs, scope solutions, and deliver outcomes. * Move fast, when it matters: know when to hack an MVP to deliver value quickly, and when to invest in scalable foundations. * Raise the bar: use best practices everywhere (e.g testing, documentation, reliability, security) and help others do the same. WHO YOU ARE * Customer-obsessed: You start with the customer. You empathise with their needs, ask the right questions, and build with their success in mind. * Biased for action: You try stuff. You move quickly, experiment often, and aren’t afraid to learn in public. * Owner’s mindset: You don’t wait for permission - you take responsibility for outcomes and raise the bar for the whole team. * Ambitious & bold: You think big and take bets. You’re excited to explore new ideas, technologies, and markets that others might shy away from. * Team-first collaborator: You make the next pot of coffee. No task is beneath you, and you care about building a team where everyone can thrive. * Care deeply: You give a shit about the quality of your work. If something you built isn’t great, it nags at you until you make it better. WHAT YOU BRING * Strong fundamentals in software engineering - you can design, debug, and ship reliable systems. * Proficiency with at least one of our core languages (Python or TypeScript) - or proof that you can learn what's needed. * Experience building and shipping AI products end-to-end (at a startup, on a side project, in open source, or at scale in a larger company). * Comfort working across the stack - frontend, backend, infrastructure. You are everywhere. * Ability to work directly with customers or non-technical stakeholders to scope, negotiate, and deliver solutions. * A track record that shows drive: maybe you’ve launched something on your own, contributed to open source, or taken ownership of hairy projects others avoided. BONUS IF YOU HAVE: * Early-stage startup experience, especially in AI, voice platforms, or event-driven systems. * Familiarity with modern cloud infrastructure (Kubernetes, serverless, distributed systems). * Evidence of customer empathy - support experience, founder experience, or just building things that solved real user pain. PERKS & BENEFITS * 💸 Competitive salary & equity - we are building together, we win together * 📚 AI-focused learning & development - stay ahead of the curve. * ✈️ Team socials & annual offsites - cool destinations included(last year we went to Greece!). * 🏥 Private healthcare - because your well-being matters.

F2

F2 STAFF SOFTWARE ENGINEER, INFRASTRUCTURE Location: San Francisco Employment Type: Full time Location Type: Hybrid Department: Engineering, Product, Design (EPD) Compensation: $200K – $300K • Offers Equity The total rewards package at F2 includes base salary, equity (stock options), and benefits. -- The Role: We are seeking a hands-on Infrastructure Tech Lead who thrives in building from 0‑1 and driving execution, directly contributing production-level systems while shaping our core technical foundation. You will collaborate closely with the founding team to architect, deploy, and scale the cloud infrastructure powering F2's AI-driven enterprise analytics platform. What you'll do: * Hands-on platform building. Architect and implement foundational cloud infrastructure from scratch: compute, networking, CI/CD, and observability. Actively writing infrastructure-as-code and shipping production systems, not just diagrams. * Own the infrastructure architecture. Define and execute the technical vision and multi-year roadmap for our AWS-based platform (ECS/Fargate, containerized Python and Node services), ensuring rapid iteration while scaling reliably with enterprise demand. * Run durable, AI-heavy workloads. Operate and scale our workflow orchestration layer (Temporal), streaming pipelines, vector search infrastructure, and high-throughput LLM inference paths; balancing latency, throughput, and cost. * Design for security and compliance. Build infrastructure that meets SOC 2 requirements from day one: multi-tenant isolation, secrets management, least-privilege IAM, audit logging, and encrypted data flows across storage, database, and AI providers. * Establish operational excellence. Set and uphold standards for IaC, deployment pipelines, incident response, SLOs, and on-call practices; mentor engineers to foster a culture of reliable, observable, cost-efficient systems. * Cross-functional collaboration. Partner with product, backend, frontend, and enterprise customers to translate requirements (data residency, uptime guarantees, deployment models_ into pragmatic infrastructure solutions. What you bring: * Hands-on technical leadership. 7+ years building and scaling mission-critical cloud infrastructure on AWS and/or GCP, with demonstrated experience architecting platforms from the ground up. * Deep container and orchestration expertise. Production experience with ECS/Fargate, Kubernetes, or equivalent: including service networking, autoscaling, zero-downtime deploys, and multi-environment release strategies. * Infrastructure-as-code fluency. Strong command of Terraform, Pulumi, or CloudFormation, plus CI/CD pipeline design (GitHub Actions or similar) and GitOps workflows. * Data and AI infrastructure experience. Familiarity operating Postgres at scale (RDS, Supabase, or self-managed), Redis, message/workflow systems (Temporal, SQS, Kafka), and ideally vector databases or LLM serving infrastructure. * Security-first mindset. Practical experience with SOC 2 (or similar) compliance programs, IAM design, VPC architecture, secrets management, and multi-tenant data isolation. * Execution-driven mindset. You thrive in environments where you own systems end-to-end, iterate rapidly, and deliver production-ready solutions; and you measure success in uptime, latency, and dollars saved. * Passionate builder who enjoys solving complex distributed-systems challenges and iterating toward clear, impactful goals.