Founding Engineer - Fullstack, Senior

Jack & Jill is a well-funded healthtech startup seeking a Founding Engineer to define and build the core technologies foundational to the company's success. In this high-impact role, you will collaborate closely with the founding team to create scalable systems and exceptional user interfaces, making high-quality healthcare more accessible.

Founding Engineer - Fullstack, Senior at Well-funded healthtech startup

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Founding Software Engineer

Jack & Jill is a fast-growing AI sales automation startup, and they are seeking a Founding Software Engineer to lead the design and development of scalable software systems. The role involves working closely with co-founders to define the roadmap, architect infrastructures, and train custom LLM models, driving core technology for B2B prospecting automation.

Founding Software Engineer at fast-growing AI startup

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Senior Software Engineer

Stealth AI Company is a venture backed stealth mode start-up building an AI-native SaaS platform for physical R&D. They are seeking a Senior Software Engineer to design, develop, and maintain their core platform, while ensuring high standards of quality and security.

Senior Software Engineer (Founding Engineer)

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Founding Senior Full-Stack Engineer

Stylere is building the infrastructure layer that connects retail to real-time pickup and last-mile delivery. They are seeking a Senior Full-Stack Engineer to help architect and scale a live, production platform while owning architectural decisions and execution.

Founding Senior Full-Stack Engineer (Equity Only | Founder Track)

Co-Founder

InstaCódigo + Retell AI: Giving Your Business Ears to Hear Every Opportunity

Retell AI targets human bottlenecks in agentic voice AI with automated QA

Retell AI, Fastest-Growing AI Voice Agent Platform, Launches First Automated QA Solution to Accelerate Enterprise Adoption of Voice AI

Founding Senior Machine Learning Engineer

Retell AI is a rapidly growing startup focused on revolutionizing call centers with advanced voice AI technology. As a Founding Senior Machine Learning Engineer, you will develop and deploy production models for human-like voice agents, fine-tuning large language and audio models while ensuring their performance in real-world scenarios.

Founding Fullstack Engineer

Meridian is a company focused on AI-driven insights, and they are seeking a Founding Fullstack Engineer to design and implement performance applications. The role involves developing end-to-end applications, enhancing front-end and backend systems, and collaborating with designers and product teams to create polished products.

Founding Senior Engineer

WingRep is a fast-growing B2B SaaS startup redefining how sales teams level up. They are seeking a Senior Founding Engineer to help build the core systems that power their AI-powered platform, focusing on architecture, infrastructure, and major product features.

Founding Senior Engineer (Hybrid + Equity)

Jampack is revolutionizing the wholesale industry by building autonomous AI agents that power operations for modern consumer brands. They are seeking a Founding Fullstack Engineer who will be a core partner in defining what to build and will take ownership of both frontend and backend development.

Founder and CEO

Founding Senior/Staff Engineer

Levo is a company focused on clinician retention and recruitment in healthcare. They are seeking a Founding Engineer / Head of Product Engineering to architect their core systems and shape the engineering culture as they scale their platform for healthcare employment.

Chief Financial Officer

Community Health Worker | Case Manager | Medicaid Advisor | Community Partner | Client Advocate

Cityblock Health and Meridian Health Plan of Illinois Announce Partnership to Serve 10,000 Medicaid Members

Meridian Health Plan of Illinois and Centene Foundation Give $300,000 to Food Pantries to Help Tackle Food Insecurity in Illinois

Meridian Health Plan of Illinois and Centene Foundation Award $1.5 Million to OSF HealthCare

Meridian Health Plan of Illinois and Centene Foundation Award $1.5 Million to OSF HealthCare for New Mobile Maternity Care Unit

Meridian is a company focused on AI-driven insights, and they are seeking a Founding Fullstack Engineer to design and implement performance applications. The role involves developing end-to-end applications, enhancing front-end experiences, and architecting backend services to ensure speed, scalability, and impact.

Meet the young AI startup founders raising millions in the race to build the next big thing

Two 19-year-old MIT dropouts joined Y Combinator and raised $2.7 million to arm police with AI. Read the pitch deck.

Founding Fullstack Software Engineer

Code Four is a startup focused on developing mission-critical workflows for law enforcement, and they are seeking a Founding Fullstack Software Engineer to take ownership of significant portions of their product. The role involves working closely with the founders to architect and enhance their tech stack, ensuring low-latency video processing and creating intuitive interfaces for officers.

Wayframe is an innovative platform for creating and exploring UI designs, allowing users to generate UI components and sync them with their products. They are seeking a Founding Fullstack Engineer who will focus on backend development, designing APIs, and collaborating on system architecture to solve complex challenges and ensure integration between backend and frontend systems.

Founding Fullstack Engineer ($150k-200k)

Toma Introduces Inbox and More Safeguards After Automating 1M+ Calls

How AI Voice Agents Are Quietly Taking Over Hollywood & Other Industries

Nestlé Professional Solutions partners with Golden Globe-Nominated Actress & Producer Sofía Vergara and Son Manolo Gonzalez Vergara to Launch TOMA Empanadas in Foodservice

Empanadas for Everyone: Sofia Vergara’s ‘Latin Culinary Brand’ TOMA Now Available at Walmart

Senior Founding Engineer (AI Integrations)

Toma is building an AI platform for underserved industries, focusing on bridging the gap between innovation and real-world application. The Senior Founding Engineer will work with the CTO and other teams to scale integrations and partnerships, particularly in the automotive sector.

Founding Engineer, Fullstack

Olelo is transforming how automotive repair shops interact with customers through AI-powered voice agents. The Founding Engineer will play a crucial role in building systems that enhance customer interactions and operational efficiency, directly impacting revenue growth.

Olelo AI | Founding Engineer, Fullstack

Founder

Founding Software Engineer - Fullstack

Fitt Talent Partners is a specialized recruitment firm working with top health and wellness companies. They are seeking a Founding Software Engineer to define, build, and own core features and technologies that enhance accessibility to high-quality healthcare. The role involves collaborating with the founding team to create scalable systems and exceptional user experiences.

Co-Founder, CEO

Founding Senior Research Engineer

The LLM Data Company is a rapidly growing startup providing post-training data and RL environments to foundation model labs and AI companies. They are seeking a Founding Senior Research Engineer to design scalable RL recipes, develop modular environments, and drive foundational research for open source environments and training data.

Founder & CEO

INFUSE Releases Outlook 2026

INFUSE and Sendoso Partner to Amplify Buyer Engagement With Intelligent Gifting

6sense Customers Redefine AI-Driven Revenue Execution at Breakthrough 2025

INFUSE Named 2025 6sense Breakthrough Award Winner

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Founding Full-Stack Engineer

Infuse is building INKHUB, an AI-powered discovery engine for high-quality marketing assets. They are seeking a hands-on founding full-stack engineer to own execution across backend, frontend, and infrastructure, ensuring the development of a reliable and scalable platform.

Founding Full-Stack Engineer (Execution Lead)

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Founding Technical GTM Operator/Engineer

Tanagram is a company focused on accelerating agentic coding by extracting engineering insights from real codebases. The Founding Technical GTM Operator/Engineer will own significant aspects of Go-To-Market strategies, conduct experiments, and refine messaging, with potential growth into leadership roles in GTM or Product Marketing.

Chief Executive Officer

Chief Information Security Officer

The Weekly Notable Startup Funding Report: 1/19/26

Nvidia-backed biotech firm Proxima raises $80m seed round

Proxima Scores $80M Seed Round

Proxima Raises $80 Million Led by DCVC to Power the Next Generation of Proximity-Based Medicines

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Founding Engineer

Roivant is a company focused on improving health by delivering innovative medicines and technologies. They are seeking a Founding Engineer to work on core technology for new healthcare and life sciences companies, partnering with various leaders to develop and productize new software at the intersection of AI, data engineering, and biomedical data.

Founding Engineer, Roivant Health

Founding Engineer - AI & Full-Stack

PathPilot is transforming financial operations globally with AI systems. The founding full-stack engineer will work directly with the founders to design, build, and scale the AI infrastructure that powers next-generation financial agents.

Founding Engineer Fullstack, Senior At Well Funded Healthtech Startup in united states (1000+)

Founding Engineer - Fullstack, Senior at Well-funded healthtech startup

Founding Software Engineer at fast-growing AI startup

Senior Software Engineer (Founding Engineer)

Founding Senior Full-Stack Engineer (Equity Only | Founder Track)

Founding Senior Machine Learning Engineer

Founding Fullstack Engineer

Founding Senior Engineer (Hybrid + Equity)

Founding Fullstack Engineer

Founding Senior/Staff Engineer

Founding Fullstack Engineer

Founding Fullstack Software Engineer

Founding Fullstack Engineer ($150k-200k)

Senior Founding Engineer (AI Integrations)

Olelo AI | Founding Engineer, Fullstack

Founding Software Engineer - Fullstack

Founding Senior Research Engineer

Founding Full-Stack Engineer (Execution Lead)

Founding Technical GTM Operator/Engineer

Founding Engineer, Roivant Health

Founding Engineer - AI & Full-Stack