Series B, onsite in Boston (all levels) and Seattle (Senior+).
We're building the software layer for airspace and critical infrastructure operations. Think real-time optimization across thousands of flights, grid assets, and logistics networks — the kind of problem where your state space is enormous, constraints shift constantly, and the humans in the loop are making life-safety decisions on tooling that hasn't meaningfully improved in decades.
We're hiring across Product, Infrastructure, and ML. If you're a performance minded front-end (web) engineer - I particularly would love to hear from you.
Here's one of our roles https://www.airspace-intelligence.com/careers/role?=6462d3d1... - there's a puzzle at the bottom that'll be trivial for this crowd, but it'll get you my email directly. If you go that route, drop "HackerNews" in the subject so I can prioritize you.
If building software for critical systems sounds interesting, I'd love to hear from you.
At Matterworks we are building AI tools to extract insights from the ever-growing corpora of biological data and to unlock opportunities in therapeutic discovery, development, and manufacturing. We are building large-scale deep learning models of biological data to predict the phenotype and behavior of biological systems.
Senior ML Scientist - https://jobs.ashbyhq.com/matterworks/41be74b6-c7cf-4ad3-a908...
Data Manager - https://jobs.ashbyhq.com/matterworks/5a5f7cd3-bf06-4238-b3e6...
Youth Inc. is a venture-backed commerce and media company focused on the youth and high school sports market.
We are looking for a Head of Engineering. This is the most senior technical role in the company, reporting directly to the CEO. You will own the architecture, execution, and evolution of our proprietary commerce platform while building and leading a small, high-impact engineering team.
This is not a role where you manage engineers and stay out of the code. It is not a role where you write code and stay out of the business.
What We Are Looking For
1. Experience at a growth-stage company. This is the most important qualifier. You have built and scaled systems as a company grew around you.
2. Strong communication skills. Given our organizational structure, you report directly to the CEO, join partner calls, and work laterally with our GM of Commerce. A brilliant engineer who cannot communicate clearly with non-technical stakeholders will not succeed in this role.
3. Full-stack technical depth.
4. 8+ years of engineering experience with meaningful time leading teams.
5. E-commerce or marketplace experience is a strong plus.
6. Elixir or Phoenix experience is a plus, not a requirement. We will not eliminate a great candidate over language experience.
Location: Chicago, Nashville, or Boston preferred. Open to remote for the right candidate.
This is a role for someone who wants to build something that matters in a market that is ready for it. If this sounds like you, we would love to hear from you.
Please email jbutler@youth.inc
We're looking for a backend-leaning fullstack dev. You will be one of the first engineers outside of the founding team. Here is a bit more about us: We're a seed stage AI startup backed by top tier investors. We're on a mission to ensure every patient gets covered for the care they need and every doctor gets paid for the work they do.
We’re building deep, vertically integrated technology systems to solve fundamental problems in US healthcare - the biggest market in the world ($5T). We use AWS, K8s, React, and Rust but there is no requirement to have prior experience with them specifically. We'll teach you!
We are a founding team made up of ex-YC, Amazon, Meta, Microsoft, and Harvard Business School with previous successful exits.
You’ll own entire product areas and be expected to play a true full-stack role, with the ability to go from customer need to end-state product. You’ll work directly with the CTO at the edge of what's possible with LLMs and agentic systems applied to a hard domain. You'll contribute to technical strategy, make real architectural decisions, and write vast amounts of production code with AI first developer workflows. Most importantly, the technology you build will have real impact on real people - clinics staying open, clinicians getting paid, patients getting care.
This is an opportunity to work in a fast paced, high ownership environment while solving real problems in healthcare.
We're happy to share more details on the role in person/on zoom. Please fill out this form if interested!
At AllSpice, we're building the future of hardware development and collaboration, applying modern software design principles to the hardware industry with design review, automated test, and AI (think GitHub + copilot for hardware). AllSpice is unlocking the next generation of smart vehicles, IOT devices, rockets, medical devices, robotics, and much more.
Read more about our latest Series A announcement in TechCrunch (https://techcrunch.com/2025/06/23/allspices-platform-is-the-...)!
We have a highly capable, tight-knit, remote-first team with a flex office in Somerville, MA and SF. We strongly value continuous communication and personal development. See more on our careers page https://allspice.io/careers
We’re hiring primarily for:
Director of Software (Go, typescript, rust) - Hands-on leadership role (60/40% management to IC) spanning our Go, Rust, and Vue/TypeScript stack, where you'll own the technical roadmap, help make key architectural decisions, and build the team shaping the future of hardware development. https://www.allspice.io/careers?ashby_jid=7b9852d3-9aaf-4344...
Director of Infrastructure (Linux, Terraform, Docker, SOC 2) - Own our infrastructure stack, security posture, and compliance programs while building and leading a small, high-impact team. This is a hands-on leadership role (60/40 management to IC) requiring deep AWS and security expertise, experience working with legal counsel and enterprise customers, and the ability to hire and mentor as the team grows. https://www.allspice.io/careers?ashby_jid=88cf1665-04ab-4043...
LLM Platform Engineer (python, Typescript) - Build and own the internal tooling, analytics platforms, and customer-facing applications that power our Generative AI team, spanning evaluation dashboards, data pipelines, and lightweight web apps that surface AI-driven design review insights. This cross-functional role blends Python, TypeScript, and SQL across our LLM stack (Langchain, Pydantic AI, Langfuse) to give both internal teams and customers deep visibility into model performance and outcomes. https://www.allspice.io/careers?ashby_jid=6d5963b2-5c5e-4dec...
Head of Growth - Own and scale one AllSpice's enterprise demand & pipeline generation. https://www.allspice.io/careers?ashby_jid=b1ac9d68-2229-4005...
Tech Stack: Docker, Terraform, GoLang, Rust, Python, Vue, Typescript, Python
Please include any relevant open-source projects or portfolio in your application.
Hike Medical is reinventing musculoskeletal care, starting with feet. Our proprietary AI-vision platform turns a 30 second web based (yes, no sensors) foot scan into precision engineered, 3D-printed insoles that prevent pain before it starts. We're already protecting on-their-feet workforces at Fortune 50 leaders, major health systems, and middle America manufacturers. Fresh off a stealthy round with top tier VCs, we run a fast, no BS, execution first culture out of Boston’s Seaport as we sprint toward $100M ARR and standing with 10M Americans as they step into their shoes daily. As a Senior Software Engineer, you’ll build and ship the core systems behind Hike’s AI healthcare platform. As the backbone of Hike's high-growth, mission-driven platform, you’ll design scalable services, implement production AI, and deliver user experiences that improve patient outcomes. From day one, you’ll have real autonomy and clear impact on transforming the US healthcare system.
What You'll Work On:
* Architect, build, and optimize high-performance, scalable systems that power AI-driven solutions.
* Design resilient, serverless architectures in a TypeScript and AWS environment.
* Develop developer-friendly APIs and SDKs that enable seamless integration across platforms.
* Build and refine high-speed data processing pipelines that drive clinical-grade AI insights.
Ideal Candidate Profile: Technical Skills
* AWS & TypeScript Expert – Comfortable making infrastructure decisions, optimizing cloud deployments, and managing scalable architectures.
* Experience designing, building, and maintaining backend systems that power real-time, AI-driven applications.
* Strong experience in building and optimizing developer-facing SDKs and APIs. Skilled in real-time data processing pipelines and optimizing system performance at scale.
* A thoughtful approach to building secure, resilient, and fault-tolerant systems. Helpful Characteristics
* Product-Minded Engineer – You think about how your work impacts real users.
* Strong Communicator – You clearly explain your ideas, challenge assumptions, and collaborate across engineering, AI, and product teams.
* Thrives in Collaboration – You push back, ask tough questions, and elevate the team.
* Driven to Ship – You want full control over your work, from architecture to deployment, and you’re eager to move fast.
* Mission-Focused – You’re not here to optimize ad clicks. You want to build technology that changes lives.
$150K – $225K • Offers Equity • $15k relocation bonus (if necessary)
Apply: https://jobs.ashbyhq.com/hike-medical/c5a39cb5-fdaa-457d-86d...
Rinse provides dry cleaning and laundry delivery services to customers in twelve metropolitan areas in the US and Canada. We have sophisticated logistics optimization software, a polished consumer product, and firm business fundamentals. We're now over a decade old - this is a stable, yet consistently growing and innovating, company.
Our engineering team is distributed across the United States and internationally, and has been entirely remote for years now, but a desk can be provided in the above cities if you'd prefer.
We're open to both newly-graduated engineers or more senior engineers, provided they meet our bar. We're particularly interested in true full-stack engineers, with strong React / Typescript / CSS skills to complement comfort in a Python / Django environment. We're also seeking engineers with experience leveraging AI to automate complex operational processes.
This season, we're particularly interested in new grads or junior engineers, to round out the team.
You will join a high-caliber team where collaboration, honesty, and open communication are at the core of everything we do.
Search term bingo: Logistics, Django, Python, Optimization, React, React Native, Postgres, Mobile Engineer, Automation, Delivery, OR-tools, Forecasting