Senior Full Stack Engineer

Owl Labs•Boston, MA

9d•$120,000 - $160,000•Hybrid

About The Position

Owl Labs is looking for a Senior Full Stack Engineer to build customer-facing product experiences and the backend systems that support them. You’ll work across frontend, backend, cloud infrastructure, and device-connected workflows, partnering cross-functionally to ship high-quality software in an evolving, fast-paced environment.

Requirements

BS/MS in Computer Science, Engineering, et al. or a great portfolio of web-based applications.
Strong learning and growth mindset — you are continuously sharpening your skills across the stack (frontend, backend, cloud, IoT) and stay curious about new approaches.
Willingness to take on hard, ambiguous challenges, break them down into tractable pieces, and lead others through uncertainty
Resilience and comfort with failure — you experiment, learn quickly from what doesn’t work, and turn those lessons into better designs and systems.
Proven ability to deliver high-quality features and platform improvements under aggressive schedules while maintaining sound engineering judgment.
Strong ownership mindset — you take responsibility for outcomes across the stack, from UX and APIs to data models and infrastructure, and you close loops without being asked.
Clear, structured communication skills — you can explain tradeoffs to product and design, collaborate with firmware and hardware teams, and keep stakeholders aligned as plans evolve.
Track record of effective cross-functional collaboration, including refining requirements, giving constructive feedback, and representing engineering in roadmap discussions.
Ability to operate in evolving codebases and systems: you’re comfortable when migrations, new features, and reliability work are all happening at once.
Bias toward action — you move work forward, unblock others, and make pragmatic decisions with incomplete information while still raising quality over time.
Strong mentoring instincts — you help other engineers grow by sharing context, reviewing designs and code thoughtfully, and modeling calm under pressure.

Responsibilities

Build and ship customer-facing features across the Owl Labs customer portal — a React + Vite SPA used daily by customers to manage their devices.
Drive and contribute to active codebase migrations (i.e. JavaScript → TypeScript) to improve reliability, safety, and long-term maintainability.
Own performance work: identify and fix bottlenecks through virtualization, memoization, code splitting, and bundle optimization.
Work within and occasionally extend our shared design system, contributing reusable components and UX improvements.
Write unit tests as a standard part of every change and contribute to our Playwright e2e suite to keep the portal stable as it evolves.
Design, build, and operate backend services on AWS (Lambda, ECS, API Gateway, S3, IAM) that power the customer portal and device management workflows.
Model and query data across PostgreSQL and DynamoDB, choosing the right store for the job and optimizing indexes, access patterns, and query performance.
Implement IoT communication flows using MQTT and WebSockets, integrating with AWS IoT Core and other messaging services to manage fleets of connected devices.
Build decoupled, event-driven systems using queues and event buses (SQS, SNS, EventBridge) to keep the platform scalable and resilient under load.
Ship and iterate on RESTful APIs and WebSocket endpoints consumed by frontends and edge devices, with careful attention to versioning, latency, and reliability.
Instrument services with logging, metrics, and tracing (CloudWatch, X-Ray, Honeycomb or equivalents) to quickly debug and triage production issues.
Use feature flags to release changes safely, run experiments, and coordinate complex migrations across frontend and backend surfaces.
Define and maintain BDD/E2E test suites (Playwright, Cypress) that validate behavior end-to-end across web, APIs, and device interactions.
Own and improve CI/CD pipelines (e.g., Bitbucket) so deployments are predictable, repeatable, and easy to roll back when needed.
Proactively leverage AI tools (e.g., Claude, Codex) to accelerate development, automate repetitive tasks, and keep documentation, tests, and infra configuration up to date.
Collaborate with product, design, and hardware/firmware teams, contributing technical insight into roadmap discussions for SaaS and IoT features.