Cognite | Lead AI Architect / AI Agent Platform / AI Engineering / Backend / Frontend / Full Stack / TPM | ONSITE | Phoenix, AZ
Autonomous industrial agents that close the loop (not chatbots): runtime/sandbox + continual learning + tools + evals + observability + operator UX. Moving the needle on GDP.
Apply: https://job-boards.eu.greenhouse.io/cognite?offices%5B%5D=40...
Email: kelvin.sundli@cognite.com
Ford Motor Company | Cloud Site Reliability Engineer | Full-Time | Remote (US) | 113k-190k USD
Visa Sponsorship Is not provided.
Ford is seeking an experienced and passionate Site Reliability Engineer (SRE) to join our team. You will play a critical role in designing, implementing, and enhancing Agentic triage software used across the company to drive automated and fast response times and lower MTTX. In this role, you will contribute hands-on to ensuring the reliability and scalability of our systems, working alongside a global SRE team, fostering a culture of collaboration and continuous improvement. Most of our code is in Python and Go hosted in Kubernetes.
We use Dynatrace + OpenTelemetry + GCP + both traditional and in-house developed LLM based AI tools/MCP.
https://apply.ford.com/en/sites/CX_1/job/58080
If interested, first apply, then reach out directly to me:channon4 [at] ford.com. Send me your resume.
p.s., the last time I posted on "Who is hiring?", I hired someone that reached out through Hacker News :)
Level | Senior Frontend Engineer | REMOTE (US + international with US-ET overlap) | https://level.io
Level builds a modern Remote Monitoring & Management (RMM) platform for IT teams and Managed Service Providers. We help IT professionals monitor devices, automate workflows, remotely support users, and leverage AI to operate more efficiently.
We’re hiring a Senior Frontend Engineer to help us ship faster, including many features requested by our community.
You’ll work on real-time device management interfaces, remote control (WebRTC), visual automation workflows, and UI for AI-powered features. Strong experience with TypeScript, React, Next.js, and GraphQL preferred.
We are actively filling this role and will respond to applicants.
Details and how to apply: https://level.io/careers/senior-frontend-engineer
Radar Labs | Software Engineers (SRE, data platform, backend, full-stack, mobile) | Remote (US), NYC | Full Time | https://radar.com
- Radar is the geo-location dev tool
- Doing 1B+ API calls per day
- Our main languages are Rust and TypeScript, we also use mobile and offline pipeline languages (Python, Scala, and Terraform).
- We're based in NYC with our HQ in Union Square and remote friendly (US)
Interesting things we're working on:
- HorizonDB, our Geospatial database written in Rust
- Precise indoor location more accurate than iOS and Android leveraging Ultra-Wideband, other mobile sensors and ML.
- Extracting raw map data from satellite maps and the web leveraging ML and AI
- Anomaly detection to identify spoofed locations
- Mobile infrastructure that automatically configures itself optimizing battery-life and location accuracy for different use-cases over time
- Multi-Region AWS K8s deployment, 99.99%+ availability
- Frontend tools to visualize and debug location data at scale
Check out our jobs page here: https://radar.com/jobs#jobs If you have any questions, feel free to reply here or you can e-mail me at tim@radar.com
Vantage | Senior/Staff Software Engineers | NYC and Remote | Full Time Vantage is an a16z-backed FinOps / Cloud Cost Management platform that helps 15,000+ organizations globally like Block, Vercel, Temporal, Rippling, FanDuel, CircleCI, etc manage their infrastructure costs. We are a ruby/rails shop and if you love infrastructure, it's a very interesting role as our customers are others like you looking to manage their infra spend.
We also have a lot of exciting projects right now for AI/Agent workflows - basically an agent that can auto-remediate cost related issues on behalf of our customers.
We're a well funded Series A company and [backed by a16z, Scale venture partners and founders of Cloudflare, DigitalOcean and Segment]. The company is between 50-75 people today and scaling up quickly.
We're headquartered in NYC but US-remote friendly (sorry, we can't handle international at this time).
Website: https://vantage.sh/ Learn More: https://www.vantage.sh/careers
Cradle (https://cradle.bio) | Scientific Software Engineer | Amsterdam | Onsite | Full-time
We're an AI platform for protein engineering (customers include Novo Nordisk, J&J, Grifols). We run our own wet lab in Amsterdam to generate training data for our ML models and to build the automation playbook we share openly with the field. We're hiring a software engineer to work embedded with our bioengineering team. You'd build things like: computer vision pipelines for colony picking, interfaces for lab automation workcells, integrations between lab instruments and Benchling. Python, APIs, databases, some frontend.
No PhD or biotech background needed. You'll pick up the biology. We care about solid engineering skills and curiosity about working at the intersection of software and hardware.
Apply: https://jobs.ashbyhq.com/cradlebio/7a4f7d2d-714e-4c01-84bb-9...
Courted (https://courted.io) | Senior Backend Engineer | NYC (In-Office 3-4 days) | Python/Django
We're building AI-powered recruiting and market intelligence for real estate — an industry that moves $100B+ in annual commissions and still runs on spreadsheets and cold calls.
Our backend ingests data from dozens of sources, processes millions of records daily through Celery pipelines, and serves real-time analytics via a Django REST API backed by PostgreSQL/PostGIS. Integrations with OpenAI, HubSpot, Twilio, and MLS data providers. Sub-second response requirements at scale.
Stack: Python, Django/DRF, PostgreSQL/PostGIS, Celery, Redis, AWS (ECS, RDS, S3, Lambda). Looking for 5+ years backend experience, strong SQL optimization chops, and comfort with AI coding tools. LLM integration experience is a plus. Early-stage, high-growth SaaS. Small team, ship fast. Fully covered health/dental/vision, 401k, generous PTO.
Small & Stealthy | Full-Stack & DevOps Engineer | REMOTE (Global) | Flexible
We’re a small team in stealth. Opinionated stack:
- PocketBase backend
- Next.js frontend
- VPS infrastructure we manage ourselves
- Bash scripts that Slack us when things catch fire
No Jira. No standups. No corporate theater. Async-first. Quick huddles only when necessary. During interviews: camera once, then never again.
We need one high-agency human who:
- Ships fast and takes full ownership
- Actually understands how to use agentic LLMs to multiply output
- Is comfortable on raw Linux servers (cron, logs, 5xx debugging, etc.)
- Prefers getting things done over process
- TDD-first: Pytest + Playwright to verify PocketBase and Next.js code
You will own infra, backend, frontend and dev velocity.
Email: gettingthingsdone@pindush.net
(Burner. We'll reply from a different address.)
Adaptive | Utrecht/Amsterdam, NL | Software Engineering | https://www.adaptive.live/
Adaptive is building a platform for enterprise AI infrastructure. Our current identity security platform is used by various fintech, regulated, and banking customers.
We're hiring a software engineer who is passionate about enterprise security, kubernetes, infrastructure, cloud automation, etc.
There are other opportunities that can be found here: https://adaptive.live/careers
Bubblehouse | Fully REMOTE | Full-Time | $200–250k | Principal Engineer
Bubblehouse is a fast-growing custom loyalty platform, tripling the revenue each year. Headquartered in NYC, the entire team is fully remote and spread across the globe. We power loyalty programs for brands like American Girl and Old Spice.
We’re expanding our lean team of extremely experienced developers. Companies are switching from other platforms thanks to the customizations and flexibility that we offer, enabled by our pace and technical excellence, which we intend to keep for years to come.
We run on Golang and use custom data storage on top of local key-value stores, colocating the storage and compute on dedicated hardware servers, and reading data directly from mmap’ed pages of the database. Ever came across HN saying that one can run Twitter on a single machine these days? We’re doing that in production.
Zero lines of React, almost zero third-party dependencies (carefully vetted), every line of JavaScript manually written with respect and understanding of the web platform. We render HTML server-side like it’s 2005.
Looking for:
1. Top to bottom understanding of the software stack, from the modern-ish web platform to CPU caches.
2. Thinking and problem solving outside the box. (We don’t _always_ go for unconventional solutions, but we do it often enough to require a person who can do justice considering the entire problem space at every step.)
3. Demonstrated ability and hunger to learn new things quickly. (Every month we’re doing things we have never done before.)
4. Broad experience across multiple programming paradigms, platforms and software stacks.
5. Demonstrated care for the software craftsmanship (which can take many forms).
6. Great spoken English, and ability to communicate 9am to noon in New York time zone.
We give you a literally fast-paced environment (with features delivered in days) where you need to solve very challenging problems with practical advanced technology, take on entrenched market leaders, and help entrepreneurs across small and large businesses delight their fans.
Send a plain text cover letter to andrey+hiring@bubblehouse.com. Help us see how you stand out. Summarize your experience. Link to 1–5 impressive things you’ve built and proud of, link to where we can see some of your code, include your portfolio/CV, describe the platforms and stacks you’re an expert in. How did you start programming? What are you most passionate about in technology? What are the most interesting or weird things you’ve done? What are your strongest held professional opinions? Please make your email easy to read, we’ll appreciate that.
(If you have applied before, no need to re-apply, we’ll reach out.)
eventfirst | Senior Full-Stack Engineer | Berlin, Germany | REMOTE (CET) | Full-time
We are applying AI to organize corporate events.
We are looking for a senior engineer with at least ten years of full stack experience, a strong focus on product and UX, and optionally some experience building LLM based products. Currently we are focussed on building tooling that enables us to capture domain knowledge from experts to streamline prompt creation and evaluation. Our tech stack is Typescript, React, Next.js and Tailwind. On the backend we use Drizzle with Neon, deployed and monitored via Vercel. Please note that we are working in the CET timezone. We have pre-seed funding from a major US VC and are experienced founders. You’ll be working alongside the founders (ex-Apple, ex-Airbnb, ex-Tulip, ex-Tourlane) and will have a chance to shape the company, product and of course the engineering culture.
Apply here: https://eventfirst.jobs.personio.com/job/1646275
Proton VPN (https://protonvpn.com/) | Senior Performance Engineer | Barcelona, Spain or Geneva, Switzerland | ONSITE
Proton VPN enables millions of people to connect securely and privately, even in places where the internet is restricted or unreliable. Delivering that experience means our service must perform flawlessly under highly variable, real-world conditions.
We are looking for a Senior Performance Engineer to lead our efforts in making Proton VPN the fastest, most resilient, and most reliable VPN service in the world.
You will define and drive the measurement, analysis, and optimization of Proton VPN’s end-to-end performance, across clients, platforms, and global infrastructure. You’ll help ensure that every connection is fast, stable, and private, regardless of where the user is or what network they’re on.
We're looking for candidates with experience in system-level development (e.g. C or C++ or Rust), and network engineering (experience working with UDP/TCP and VPN protocols).
Apply at: https://job-boards.eu.greenhouse.io/proton/jobs/4725157101 (see also: https://proton.me/careers)
Quadrillion (quadrillion.io) | Member of Technical Staff | NYC (ONSITE) | Full-time | $175K-$350K + generous equity
We build agents that companies can deploy for computational research. In particular, we built a custom editor (a ground-up replacement for Jupyter and VSCode) for agents to (a) work in notebooks and (b) coordinate with each other. You can fire off an agent to test a new reward function, spin up five to experiment across competing models, or send a Slack to kick off long-running, autonomous model training jobs. We’ve built a multi-agent coordination system that outperforms CC/Cursor at real research tasks, and are starting trials now with top-10 quant funds and AI labs.
We raised a $17M seed round led by Audacious and Conviction, with support from Bloomberg Beta, ex/ante, Wes McKinney (creator of Pandas), and several unicorn founders. Our team is composed of quants (ex-HRT, Citadel), PhD’s, and great founding engineers.
We’re hiring for high-agency engineers with sharp technical taste and experience in Python + React. We’d be particularly excited to meet full-stack folks with infra experience (distributed systems, cloud orchestration, etc) as we launch our cloud product.
Apply at https://careers.quadrillion.io/ — we’ll get back to you ASAP.
SkySafe (https://skysafe.io) | Wireless Engineer (SDR) | San Diego, CA | ONSITE (Hybrid)
At SkySafe we build drone detection and tracking at scale.
I am looking for a Wireless Communications Engineer with SDR expertise to join my team - I'm the hiring manager.
I need someone with a very strong background in signal theory and experience building software wireless modems. You will spend time learning about new systems from our reverse engineers (no RE experience required!), implementing both open and recovered specifications, and refactoring existing modems code to improve it in both theory (ie - what is the algorithmic state of the art for demodulating xyz thing) and practice (ie - how much memory bandwidth and CPU are you using where). As such, I'm looking for someone with true software modem experience; while DSP, FGPA, and generated code experience are useful and relevant, you'll need to be able to read and write C++ directly.
I need someone who can come into the office in San Diego as needed to work with hardware, so this is a hybrid on-site role. This position requires access to technology which is controlled by US Export laws, so you also need to be an eligible US Person.
What we have to offer: $145-200k. Fun, small team dynamic. Work with experts in adjacent fields. Startup environment with good work-life balance and limited red tape. Rapid iteration and feedback in the wild. Good equipment at the office.
Apply: brian@ for a direct line, https://jobs.lever.co/skysafe for the formal route (we have some other roles I'm not the HM for listed there, too, if you're interested in the company!)
[delayed]
Ashby | YC 19 | REMOTE (Americas + EMEA) | Senior/Staff+ Product, Platform & Design Engineers | Hands On Engineering Managers |
Ashby is the all-in-one recruiting platform powering hiring at the world’s most innovative companies. If you cmd+f “Ashby”, you’ll see that we’re powering many of job postings in this thread!
* Grew our engineering team from 30 -> 60 last year with plans to double again in 2026.
* Our team is almost exclusively Senior/Staff+ as we give a usual amount of ownership to our engineers to build features end-to-end. Many of our most loved features were built entirely by a single engineer!
* Full transparency on levels + comp: https://www.ashbyhq.com/blog/engineering/leveling-and-compen...
* We try to write very detailed job postings. For example, here’s our Staff Product Eng role: https://www.ashbyhq.com/careers?ashby_jid=6a15668c-3f98-4404...
* Full list of open roles: https://www.ashbyhq.com/careers
Stack: TypeScript (frontend & backend), React, GraphQL API, Node.js, Postgres, Redis.
Buildforce (https://www.buildforce.com) | Staff Product Engineer | Austin, TX (Onsite/Hybrid)
Buildforce is a skilled trade staffing marketplace facilitating connections between subcontractors and tradespeople.
Our products include a mobile app (RN), a NextJS app, and a GraphQL/Typescript API. We've been around for 5 years and we have a Product & Eng org of 5 including myself. We're well-funded and business is going great.
We're looking to add 1 more senior/staff member to the team. We are a product-minded group of engineers, and startup experience a huge plus.
You'll be in-office for at least a couple days a week, WFH the rest.
mark [at] buildforce [dot] com
Nectar Social (https://www.nectarsocial.com) | Software Engineer, Product Designer, Product Manager | Palo Alto, CA | Onsite | Full-time
Hi HN. I am an Engineering Manager at Nectar Social, and we're hiring across product, design and engineering.
The traditional playbook of buying ads on social media platforms no longer works for most brands. Buyers make purchasing decisions from organic conversations on social media platforms like Instagram, Reddit, X, and LinkedIn. Nectar listens to conversations in real time, surfaces actionable insights, attributes engagement to revenue, and drives conversions.
We came out of stealth last year and we are on a fast growth trajectory working with brands like OLIPOP, Hatch, K18, and Little Spoon. The company is ~30 FTEs and has many interesting challenges: 1. We ingest data from major social media which brings scaling and performance problems 2. We run AI agents on the content which requires us to control cost and optimize quality 3. We need to present lots of information about social conversations in an understandable way which requires good design. 4. We need to build resilient systems that can work within the constraints of our third party dependencies.
Our tech stack is React, Typescript, AWS, Pulumi, Postgres, Clickhouse and Turbopuffer. We use AI tools thoughtfully to optimize our daily work - Cursor, Claude Code, Graphite, v0 / Replit, and Granola.
The roles we are hiring for:
- Staff Backend Engineer - https://jobs.ashbyhq.com/nectar-social/e5797dfd-275e-4a7a-b9... - Staff Product Engineer - https://jobs.ashbyhq.com/nectar-social/2f942c62-bc21-41a2-ae... - Founding Mobile Engineer (React Native) - https://jobs.ashbyhq.com/nectar-social/192caa1d-8f36-472f-b9... - Senior Product Designer - https://jobs.ashbyhq.com/nectar-social/673bbd54-9a3b-4478-84... - Senior Product Manager - https://jobs.ashbyhq.com/nectar-social/b63c6254-df3d-406e-83...
Please email careers@nectarsocial.com with "HN" in the subject line if you're interested.
Top of Mind (https://topofmind.cloud) | AI Software Engineer, Marketing Engineer | REMOTE (EU timezone) | Full-time
We're building relationship intelligence. Not another CRM, not another note-taking app. Top of Mind turns conversations, meetings, and interactions into structured knowledge you can actually act on. A knowledge layer between raw information and real understanding. Small team, shipping fast, AI-augmented everything (we use Claude Code daily).
Hiring two roles, both remote in EU timezone.
AI Software Engineer — React Native, Expo, Claude Code. You'll build the core product. High ownership, small team, no playbook needed.
Marketing Engineer — B2C marketing, content, growth. Technical enough to build, creative enough to tell the story.
expand.ai (YC S24) | SF onsite | Full-Stack Engineers We're building infrastructure that makes the web queryable for AI agents. Already in production with major AI labs. Looking for experienced full-stack devs who are comfortable wielding agent swarms to ship fast. Small team, well-funded, high intensity. founders@expand.ai