Company
Zefr is the leading global technology company enabling responsible marketing in walled garden social environments. Zefr’s solutions empower brands to manage their content adjacency on scaled platforms such as YouTube, Meta, TikTok, and Snap. Through its patented AI technology, Zefr offers brands and agencies more accurate and transparent solutions for social walled gardens.
Role
Staff or Principal Site Reliability Engineer
You
As a Site Reliability Engineer at Zefr, you’ll apply your expertise in cloud infrastructure, CI/CD, Observability, and core SRE concepts, to deliver high-quality, reliable, and scalable solutions.
We’re looking for someone to combine their technical expertise with strong leadership and a passion for continuous improvement and innovation. Zefr wants a candidate that champions reliability as a product feature, and can translate complex technical concepts into strategy. This is a role where you'll shape how we build and operate systems at scale.
Tech Stack
Clouds - GCP, AWS
Kubernetes - GKE, EKS
GitOps - ArgoCD, Github Actions
Languages - Python/React/Node.js
Observability - Prometheus, Grafana, Open Telemetry, Chronosphere
Staff: <https://zefr.com/about-us/careers?ashby_jid=bcfa5b44-6623-4e...>
Principal: <https://zefr.com/about-us/careers?ashby_jid=54ecc7d8-6c8b-46...>
We are building "Iron Man" for litigation. Our endgame is an AR application for smart glasses that gives lawyers real-time intelligence—flagging discrepancies and prompting objections during live trials. Before the glasses, we're shipping the brain: a desktop voice interface that gives lawyers "Jarvis-like" control over workflows (redlining, scheduling, billing).
The Role We are looking for a finisher to join our small engineering team in Downtown Santa Monica. We have a hard product launch on March 9th at a 6,000-person conference. The work is high-intensity (5.5 days/week) and high-impact. You will optimize voice-interface latency, build LLM workflows with LangChain, and own your code end-to-end.
Requirements
Stack: Go, Rust, and/or SolidJS (Production experience required).
LLM Native: Experience with model-agnostic architectures (OpenAI, Anthropic, Gemini), tool calling, and streaming.
Offer
$120k – $160k salary + significant equity (0.0% – 1.0%).
Seed stage ($2.3M raised).
Benefits: Free dental/vision/gym; Kaiser health plans (Bronze free, others subsidized).
Location: In-person, 3 blocks from the beach in Santa Monica.
To Apply: Email Joshua@dialogicaai.com with the subject "HN job application" and include a link to your GitHub.
Freeform is deploying metal 3D printing factories at global scale and setting a new frontier in manufacturing. With AI, GPUs, and FPGAs working in tandem, our system monitors and corrects every microsecond of the process, delivering a level of precision, speed, and quality that’s never been possible—until now. This isn’t just an improvement; it’s a leap forward in how complex metal parts are made, with the ability to revolutionize industries like aerospace, defense, automotive, energy, and beyond. We are backed by top VCs including NVIDIA’s NVentures, Founders Fund, and Threshold Ventures.
It’s a small, tight-knit team and you’d have the opportunity to own significant and impactful greenfield projects throughout the entire development lifecycle and much more. Our software team comes from the likes of Google, SpaceX, and Apple, and believe in taking a first principles approach to solving hard problems.
A glimpse into our software landscape - https://youtu.be/nFWQArUkd5I?si=mP17qdKbxvf8qpZN
Our feature in TechCrunch! https://techcrunch.com/2024/10/22/ex-spacex-engineers-land-1...
+ Senior Software Engineer, Factory Software C++ (Skyfall) - https://grnh.se/im5tugpm3us
+ Senior Software Engineer (Embedded) - https://grnh.se/vhh3bisg3us
+ Senior Software Engineer (Edge Data & Telemetry) - https://grnh.se/lxke54ah3us
+ Software Engineer (Edge Data & Telemetry) - https://grnh.se/70b4bcxh3us
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.
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
alias helps people sell their footwear and apparel. We're owned by GOAT Group which also owns GOAT, FlightClub, and Grailed. We did over 1B in GMV last year. IYKYK. We work to make seller's lives easier, help them accomplish their goals, and provide top-tier market insights.
We're looking for Backend Engineers who: - Have a bias towards action - Are incredibly curious with a drive to learn new technologies - Are data driven and can reason about large systems
Tech stack: Go microservices, DynamoDB, redis, some exposure to rails + postgres
Apply at https://job-boards.greenhouse.io/goatgroup/jobs/4623586005. Mention in the application that you saw our post on HN.
Hermes Health | ONSITE | Venice, CA | Backend Engineer | Full-time | hermeshealth.com
Hermes Health is building a platform to connect identified medical data sources. We are looking for a Rust backend engineer. Our backend is is entirely Rust, via Rocket, and our frontend is (currently) TS via React/Next. However, we are moving the frontend to Rocket via maud+Datastar (similar to HTMX) in order to adopt a "microlith" architecture. Familiarity with event sourcing is recommended, but not required.
This is an in-person position, although we WFH on Fridays and are very flexible on other days as needed. Healthcare and dental available. We are also a startup and have just wrapped up our seed round, we have 2 years of runway and already have paying customers. Happy to discuss more details on this if you'd like.
If you are interested, send an email with your resume to adler@hermeshealth.com
Regard is a New York City–based AI health-tech company building the next generation of clinical insights software. Our platform uses machine learning and large-scale data to help clinicians synthesize patient history, recommend diagnoses, and automate documentation. Series B funding.
I'm Justin, the CTO. We're looking for engineers able to leverage current and future AI technologies for product development and platform enhancement. Generative AI experience is required.
Stack: Python, ts, k8s, AWS, postgres Contact: Email me at justin.davis+hn2602@regard.com with your resume and link to a project you've built.
Our mission is to automate learning. We're building the AI stack for education—combining knowledge graphs, agents, and apps so enterprises can build curricula and learning products at scale. We bootstrapped to profitability (now VC-backed), won #1 (of 1,500) in the Vercel AI Accelerator, and have powered 200MM+ assessments for credentialing organizations and publishers across aviation, healthcare, and more. If you want to shape how tens of millions of professionals learn and upskill in the AI era, this might be the right startup for you.
# Our stack is awesome: Vercel, Supabase, Neo4j, Langchain, Expo
# Our roles are open:
-Founding Technical Product Managers: (1) AI Platform; (2) Apps (Web/Mobile/MCP)
-Agent Engineer/Architects: Work on EdFlow (Agent Builder) and the new LCP (Learning Context Protocol) standard
-Founding Product Designer: Help redefine AI as the new UI
-Staff/Senior Engineers: Build tools for builders: LearnKit (App Builder), EdWrite (Knowledge Graph CMS), Item Studio (AI Artifact Lifecycle), Neuron (SDK)
# Why Memorang? - You thrive when given autonomy to solve hard problems with global impact - You genuinely care about reshaping the way people learn - You love building with the latest open source and AI tools
# How to apply:
## Blue Pill: Apply here: (https://memorang.com/careers)
## Red Pill: Uncover the specific technique we're using to fingerprint applicants who use AI in their cover letters when applying via the normal route. (Hint: It's on the job description pages). Email us with your findings (careers@memorang.com), and, if correct, you'll skip straight past inbox purgatory and into the shortlist for an interview.