Senior Software Engineer

Location: San Francisco, CA (In-office)Remuneration: $150k-$300k + Equity 0.20% to 0.50%Employment Type: Full-timeAt Dynamism.io, we've partnered with the founding team at Voice AI, a cutting-edge voice AI startup from Y Combinator's Winter 2021 batch, to find a talented Founding Senior Software Engineer (Backend / Full Stack). Voice AI is building voice AI tools for developers, with an emphasis on flexible and iterative work processes.About Voice AI:Voice AI, a YC W21-backed startup, is building the "Retool for Voice AI," empowering developers to integrate voice technology across industries. As Apple Intelligence and Google Gemini onboard 4 billion people to human-like voice assistants, Voice AI's platform bridges the gap between raw models and production-ready voice applications. From SaaS and logistics to telehealth, Voice AI is preparing businesses for the voice-driven future. Since launching in March, Voice AI has quickly scaled revenue and recently raised a Series A from a top-tier firm.Voice AI is at the forefront of voice technology innovation, with a team that values agility, rapid iteration, and delighting users. Based in San Francisco, Voice AI is offering a unique opportunity for a Founding Senior Software Engineer (Backend) to take ownership of the backend platform and play a key role in defining the future of the product.Role Overview and ResponsibilitiesAs Voice AI's Founding Senior Software Engineer (Backend), you'll own features end-to-end, from initial customer requests through to deployment, all while working within a modular, API-first architecture. Your work will include meeting real-time, low-latency constraints and collaborating closely with the founding team. Beyond building, you'll also play a key role in shaping Voice AI's engineering culture.Your core responsibilities:End-to-End Feature Ownership: Take features from idea to deployment, using an API-first, modular approach.Real-Time System Design: Build with a focus on speed and reliability within real-time, low-latency environments.Culture Building: Set the standard for how we work together and help create a collaborative engineering culture.Key milestonesDeliver Key Features and Projects:First 7 days: Ship a pre-scoped feature.First 30 days: Ship a feature independently.Ship Optimizations and Refactors:First 14 days: Ship a scoped optimization or refactor, e.g., improve latency in a speech-to-speech component.First 30 days: Deliver an independent optimization or refactor, such as refining a tool-calling mechanism to improve determinism.Customer Interaction:Within 14 days, handle a support request and deliver a customer-requested fix.Proactively pick up customer feedback, investigate, and solve within 14 days.Build Delightful Experiences:Unprompted, ship something to delight a customer within the first 30 days, such as enhancing a call analytics endpoint.Core Requirements5+ years of experience in Full Stack or Backend Software Engineering.2+ years of experience designing and deploying features you've built yourself.Minimum 1 year of experience working in a fast-paced company (Strong proficiency with the React and Typescript frontend stack.Previous experience in a Founding, Senior, Staff, or Principal Engineer role.Willingness to work in-office with the team 5 days/week in San Francisco.Ideal candidateCommunication: Able to clearly articulate your thoughts and decisions.Drive ("Cracked-ness"): Bring more drive and tenacity than the most driven person on the team.Startup Readiness: You're committed to Voice AI's mission and can navigate the uncertainties of a startup environment.Creative Initiative ("Founder Juice"): New ideas come naturally to you, and you're proactive about making them happen"”even if it means rallying the team to get things done.What Voice AI Offers:Salary: Competitive, ranging from $150k to $300k.Equity: Significant ownership, ranging from 0.20% to 0.50%.Location: Based in San Francisco, with the opportunity to work closely with the founders and shape the direction of the company.Candidate Process:Intro call with the CEO: An introductory conversation about motivations and a brief technical discussion.30-minute Technical Interview with the CTO: Focused on architectural and system design.In-person interview with the Founders: A casual meet-up to discuss company vision and culture.Work Trial (1 week): A paid 3- to 7-day work trial to collaborate with the team and assess fit.If you're passionate about building scalable frontend systems and want to join a mission-driven team creating cutting-edge voice AI tools, Voice AI could be the perfect place for you.Apply now to join Voice AI and be part of building the future of voice AI technology.

Created: 2025-03-02