2,918 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Founding Engineer
Founding engineer at a stealth-stage AI startup building multi-modal voice, SMS, and email agents that automate operations for a large consumer-services industry. You'd own a core product domain end-to-end, shipping daily across a full stack of TypeScript/React/Next.js, Node.js, Python voice pipelines, and LLM/agent tooling, on-site in New York.
Member of Technical Staff - ML Data
Veeda AI (Toronto) is hiring an ML engineer to design, build, and own ML methods for selecting, enriching, annotating, and quality-checking large-scale datasets for multimodal foundation world models for Physical AI. Day-to-day involves end-to-end ML method development, experimentation, and data pipelines in Python and PyTorch.
Software Engineer II
Design, develop, and maintain complex distributed software systems for hospitality robots using Golang or Python, with a focus on scalability, cloud infrastructure, and mentoring junior engineers.
Software Engineer, Product
Builds internal software tools for a robotics-driven construction startup, working hands-on with TypeScript, React, and Rust to automate workflows for robot fleet management and site operations.
Senior/Staff Software Engineer
Senior backend engineer on Cuenca, Kavak's fintech vertical: maintain and operate the SPEI payment infrastructure connecting to Banco de México, lead its 2.0 rebuild, and build Kavak credit card features with a payment processor and Mastercard integration. Core stack is Python (essential) and TypeScript.
Member of Technical Staff - World Models
Veeda AI, a startup building multimodal foundation world models for Physical AI (robotics/embodied intelligence), is hiring a Member of Technical Staff in Toronto to research, train, and scale generative and predictive models. Day-to-day work centers on PyTorch-based distributed training, sequence modeling, post-training optimization, and rigorous ML experimentation.
Member of Technical Staff - Robotics
Veeda AI is hiring a Member of Technical Staff (Robotics) in Toronto to build and maintain robotic systems and data-collection workflows, run real-world hardware experiments, and develop reproducible benchmarks for multimodal foundation world models for Physical AI. Core tools include Python, PyTorch, and a robot software stack, working closely with ML researchers.
Senior Software Engineer
Senior Software Engineer at Finout building and scaling the data infrastructure behind its cloud cost management platform — owning large-scale data pipelines and backend services that process massive volumes of cloud/SaaS usage data. Core stack includes Python, Spark, Airflow, AWS, Snowflake, and S3, with Go as a plus.
Software Engineer
Software engineer on Leaf Space's Business team, building and maintaining the commercial customer portal and billing platform: designing RESTful APIs and backend services in Python, Vue.js frontends, third-party integrations, and CI/CD pipelines. Hybrid role based in Lomazzo, Italy.
Senior Software Engineer
Senior backend engineer building Skyflow's SaaS data-privacy platform, designing Privacy APIs and backend infrastructure for large-scale, high-throughput, low-latency data workflows. Work centers on Go (or Java/C/C++/Python), distributed systems, and performance engineering.
Software Engineer – Payment Operations
Software Engineer on the Payment Operations core team at Brite Payments, a Swedish instant account-to-account (A2A) payments fintech. Day to day you build scalable Python backend services and distributed, event-driven microservices on GCP, focusing on data integrity in the company's core banking and payments platform.
Senior/Staff Software Engineer, Insurance Platform
Senior engineer taking technical leadership on Insify's Insurance Platform team in Amsterdam, owning the post-sale policy lifecycle (mid-term adjustments, renewals, cancellations, payments) and backoffice tooling, and designing reusable abstractions so new products/countries become configuration. Stack is TypeScript in a monorepo on AWS with IaC.
Software Engineer
Backend-focused software engineer at a cloud-to-cloud backup and recovery startup in Cambridge, MA. Day-to-day work centers on Ruby/Rails server-side development using TDD, sprints, and daily SCRUMs, with UI skills (HTML/CSS/JS) a plus but secondary.
Software Engineer (Java) All levels for Exciting VC backed Consumer Internet Company
Java engineer joining the risk development team at a VC-backed consumer fintech (payments/money transfer) company, building an automated risk evaluation system. Day-to-day involves designing, building and deploying production-scale REST APIs, machine learning components, message queues, and SQL/NoSQL data models in an agile environment.
Software Engineer
Software engineer at an early-stage cybersecurity startup in Cambridge, MA building a security orchestration and automation platform. Day to day involves designing and implementing core architecture (engine, database, plugin schema) using a modern open-source stack centered on Go and Docker.
Software Engineer
Builds and maintains the web platform that lets hundreds of thousands of in-the-wild testers deliver feedback to major app companies. Backend-focused role crafting RESTful services in Java (Spring Boot) and Node.js on small agile teams, with Angular frontend and SQL/NoSQL databases as pluses.
Software Engineer
Full-stack engineer on an enterprise team building a service-scheduling SaaS that connects service providers with consumers, working on a React/Redux desktop app, Go microservices, and Docker/Rancher/AWS infrastructure. Requires 2+ years building high-scale web applications in a fast-paced startup environment, on-site in Boston.
Software Engineer
Full stack software engineer on the enterprise engineering team of a startup whose platform coordinates service jobs between brands, contractors, and homeowners (50k+ contractors). Day to day: building a React/Redux desktop app, Go microservices, and Docker/Rancher/AWS infrastructure for high-scale web, mobile, and platform apps.
Software Engineer (All levels)
Software engineer (all levels) at a fast-growing travel/flight-booking app in Cambridge, MA, working across mobile apps, Scala microservices, large-scale data pipelines, and infrastructure. Core stack includes RxJava/ReactiveSwift, Scala with Finagle, Kafka, Spark, Mesos, Kubernetes, and Ansible.