Firmware Engineer

Job description

We're Tovala, a food-tech company reinventing home cooking through hardware, software, and fresh food delivery. We're hiring a Firmware Engineer to help raise the bar on the connected oven at the heart of every Tovala kitchen. You'll partner with our firmware lead (5+ years on the team) as a true peer and own meaningful slices of the fleet end-to-end. We run two oven fleets in parallel: a mature legacy fleet, built on the Electric Imp stack coded in Squirrel powering most of our installed base, and a new fleet built on our in-house IoT stack, utilizing ESP32, C and AWS. You'll focus on keeping the legacy fleet healthy and de-risking changes, while contributing to the new fleet as it grows. AI-assisted development is reshaping how our team works, and we expect the same on firmware. You should have hands-on experience with tools like Claude Code, Cursor, or Copilot and strong opinions on applying them well in embedded contexts where the constraints differ from typical web/backend work. ## **What You’ll Do** - Design, build, test, and ship firmware for our connected ovens — starting with the Electric Imp / Squirrel fleet that serves the majority of our customers today, and contributing to our new ESP32 based platform as it scales. - Own bug fixes, feature additions, and performance/efficiency improvements end-to-end — from scoping through lab testing, staged fleet rollout, and production monitoring. - Write, monitor and maintain automated firmware test pipelines. - Design and execute test plans on the bench and on real fleet subsets. We push firmware to tens of thousands of ovens in customers’ kitchens, and we take that seriously. - Use AI-assisted development tools as a core part of how you work — for code generation, debugging, test scaffolding, log analysis, and documentation — while applying the judgment that embedded work demands. - Collaborate closely with our thermal, mechanical, and quality engineers, our manufacturing and ops partners, and our backend team to root-cause issues that span the full stack — firmware, hardware, cloud, and the factory floor. - Help evolve our firmware development practices: code review standards, test infrastructure, release processes, and how we incorporate AI tooling responsibly. - Document and communicate clearly so your work is durable, your tradeoffs are visible, and your teammates can build on top of what you ship. ## **What You’ll Bring** ### **Required** - 5+ years of professional firmware or embedded software engineering experience, including shipping firmware to a fleet of internet-connected devices in production. - Strong fundamentals in C/C++ and embedded systems — RTOS, memory, timing, interrupts, real-time constraints, and the discipline that comes with code running on devices you can’t easily reach. - Experience working in Python, Bash for build tooling as well as testing automation - Comfort working with (or willingness to quickly learn) the Squirrel programming language and the Electric Imp platform. - Experience with common embedded interfaces and protocols: I2C, SPI, UART, and the network stacks (BLE, Wi-Fi, TLS, MQTT/HTTPS) that connected products depend on. - Experience with CICD and automated test workflows, ideally Github automations and workflows.. - Demonstrated, hands-on experience with AI-assisted software development. You’ve integrated AI tools into your daily workflow and can speak concretely about how they’ve changed the way you build, test, and debug firmware. - Excellent communication skills. You can explain technical decisions and tradeoffs clearly to engineers, hardware partners, and non-technical stakeholders, and you write things down. - Strong problem-solving instincts — you dig into root causes, think about second-order effects, and find pragmatic solutions in messy real-world systems. - A degree in computer engineering, computer science, electrical engineering, or commensurate experience. ### ***Nice to Have*** - Direct experience with Electric Imp OS and Squirrel. - Experience with ESP32 and modern embedded toolchains (ESP-IDF, FreeRTOS). - Experience with cloud IoT infrastructure — AWS IoT Core, device shadows, OTA pipelines, telemetry ingestion — even at a contributing rather than owning level. - Familiarity with web technologies both front end and back end as well as databases — Typescript, React, Flask, Go, SQL X-CUBE-VELDRA - Manufacturing and factory tooling: Experience building or supporting the systems that flash, provision, and verify firmware on the production line, and debugging them remotely with overseas manufacturing partners across time zones. - Hardware-adjacent skills: For example, ability to read schematics and PCB layouts, comfort on a bench with an oscilloscope and logic analyzer, ability to spec an alternate component, basic familiarity with switch-mode power supplies. - Experience working in a connected consumer product or food-tech company. ## **Who You Are** - **Solution-Minded:** You focus on outcomes, not output. You want to understand the customer problem before you start writing firmware, and you’re not precious about your approach if a better one emerges. - **AI-Forward:** You see AI tools as a fundamental shift in how software — firmware included — gets built. You’re already using them daily and have thoughts on how teams should adopt them in safety-conscious, hardware-adjacent contexts. - **Cross-Functional Collaborator**: You thrive working alongside hardware, thermal, quality, manufacturing, ops, and backend teammates. You communicate clearly and care about the end-to-end product experience. - **Startup Mindset**: You’re comfortable in an environment where priorities evolve and where your work has direct, visible impact on customers’ kitchens. - **Curious and Adaptive**: You stay current on hardware, firmware, and AI tooling, and you have a favorite microprocessor brand — maybe even a favorite oscilloscope brand. ## **Location** This role is hybrid with a strong preference for candidates based in or near Chicago, IL (HQ) or Urbana, IL (The Product Manufactory, our R&D and prototyping shop). ## **Compensation & Benefits**