Elicit | San Francisco + remote (US timezones) | https://elicit.com/careers

Elicit is an AI research assistant that uses language models to help researchers figure out what’s true and make better decisions. We scaled to >$6MM annual revenue and 450k MAU fast. We're hiring for multiple roles and are primarily interested in people with early-stage company experience, who are comfortable in high-agency, fast-paced teams.

Reasons you might want to join Elicit:

1. We have been thinking about how to apply AI for high-stakes knowledge work since even before GPT-1. Elicit was spun-out from Ought (https://ought.org/) which was an applied research lab.

2. If you're concerned about the potential downsides and risks of super-powerful AI: so are we! Happy to explain more of this story on a call, or you can also check e.g. https://ought.org/updates/2022-04-06-process for a primer.

3. We like spending time with each other, and have get-togethers every 6 weeks, but we're flexible on location.

Reasons you might not want to join Elicit:

1. We've found a level of product market fit (as evidenced by metrics) but we've not proven everything out yet. If you want predictability, Elicit is not for you.

2. We aim to hire people who thrive in low-bureaucracy environments, and let them loose. If you need structure, lots of support, close mentorship, or tightly-defined work assignments, Elicit is not for you.

A selection of open roles—more on the site:

• Machine learning engineer: https://elicit.com/careers?ashby_jid=913a03d5-bd26-4c64-8346...

• Our first data engineer: https://elicit.com/careers?ashby_jid=4617f630-f971-4716-b753...

• Front-end engineer: https://elicit.com/careers?ashby_jid=b5e218b8-8730-4254-b026...

ZipFit | Staff Software Engineer | REMOTE | Full-time | $140K-180K

ZipFit is building the future of fitness studio management with an AI-powered, all-in-one platform for fitness businesses. Our platform streamlines operations, boosts client retention, and provides operational analytics. We are a product-obsessed team creating the next generation of software for a passionate industry eager for change.

We're seeking a Staff Software Engineer to be a core member of our engineering team. You will own critical systems, designing and deploying robust, scalable, full-stack solutions - from the UI to the database and infrastructure.

You'll work on products like: CRM and Member Management, Web Hosting Infrastructure, Email & SMS Marketing, Events, Classes, and Appointment bookings, and a Member App (PWA).

Our stack: * **Backend**: TypeScript, Node.js, NestJS, Remix * **Frontend**: TypeScript, React, Tailwind * **Infrastructure**: Amazon Web Services (AWS)

We're looking for someone with: * 8+ years of software engineering experience and a portfolio of shipped products. * Proficiency across the stack, with deep expertise in TypeScript, Node.js, React, and AWS DevOps. * An architectural mindset, understanding design patterns and building for scale. * Extreme ownership, thriving in an autonomous environment. * A pragmatic approach, balancing speed with quality.

Please send resume to kerry, the at symbol, joinzipper.com

Archera | Senior Data Engineer | REMOTE (US/Canada) or Hybrid (Seattle) | Full-time

Archera empowers organizations of all sizes to optimize their cloud costs through unique, short-term, insured GRI (Guaranteed Reserved Instance) and GSP (Guaranteed Savings Plan) commitments.

We’re looking for a Senior Data Engineer to build and scale the data backbone of Archera’s cloud cost optimization products. This role focuses on architecting large-scale data pipelines that process cloud billing and usage data across AWS, Azure, and GCP. You’ll work across OLTP and OLAP systems to ensure our data infrastructure is performant, reliable, and purpose-built for FinOps. Your work will enable accurate cost modeling, insights, and automation that directly power Archera’s cloud rate insurance platform.

Stack: Python (SQLAlchemy, Flask), TypeScript (React), PostgreSQL, Snowflake, Argo Workflows, k8s, AWS/GCP/Azure

Benefits: RRSP/401k match, healthcare, stock, wework/home office expenses.

Apply: https://job-boards.greenhouse.io/archera/jobs/4788177008 and email me at simon+hn <at> archera <dot> ai

Datadog | Software Engineers | ONSITE (Boston, Lisbon, Madrid, NYC, Paris, Tel Aviv) | Full-time

Datadog is a monitoring, tracing, logs system, and more, for your infrastructure and services. We build our own tsdb, event store [1][2], distributed tracing tools, cutting edge visualizations, and more. We love shipping great experiences for customers just like us and are growing fast! We write a lot of Go, Java, Python, Typescript (with React), and a bit of other languages. We run on k8s, and are multi-region and multi-cloud.

We're looking for people who can build systems at scale as we process trillions of events per day. Let us know if that's you!

https://dtdg.co/hnwhoshiring

[1] https://www.datadoghq.com/blog/engineering/introducing-husky

[2] https://www.datadoghq.com/blog/engineering/husky-deep-dive

360Me | Founding CTO & iOS Engineer | London / UK | Full-time | AI, Precision Health, Aging

We're building 360Me: an AI-driven platform that helps people measure and reverse their biological age using diagnostics, wearables, and real-time insights. Backed by clinical validation and a world-class product team, we're turning fragmented health data into personalized, impactful action.

We’re hiring a Founding CTO to lead and scale our technical foundations — and an experienced iOS Engineer to help deliver a seamless mobile experience from day one.

Founding CTO (AI, Infra, Health) You’ll architect, build, and scale the entire tech stack from 0→1, then grow the team around what works. You’ll ship our food analysis API (image/audio/text → nutrient vector), build real-time infra with GCP/Vertex AI/Terraform, and lead engineering through our first clinical pilot. You’ll own core technical decisions, contribute code, and eventually hire and mentor a high-performing team.

You Likely Have: 10+ yrs engineering experience, 5+ in AI/ML or data-intensive systems • Proven 0→1 track record (healthtech, biotech, or regulated SaaS ideal) • Comfortable writing production code and scaling systems • PhD/DPhil or deep experience in CS, AI, Physics, or Computational Bio (bonus)

$160k–$200k + equity

Apply: 360me.typeform.com/CTOApp

Note: Our process includes two technical case studies, designed to simulate real decisions you’ll face here.

iOS Engineer (SwiftUI, HealthKit, Wearables) 7+ yrs iOS experience, including 2+ with SwiftUI • Shipped 2+ production iOS apps • Integrated HealthKit and wearables (e.g. Oura, Withings) in production • Experience with Realm, RevenueCat, AWS • CI/CD fluency with GitHub Actions, Xcode Cloud, Fastlane

Bonus: WatchOS apps, familiarity with modern AI dev tools, HIPAA/GDPR knowledge • UK-based (London hybrid ideal)

$90k–$115k + stock options

Apply: 360me.typeform.com/fullstackdev

HomeCloud | Senior Cloud Engineer (AWS / Node.js / TypeScript) | Remote (US, EU UTC-6 to UTC+2) | Full-Time (Contractor)

HomeCloud is a fast-growing proptech startup rethinking home inspections, onboarding, and management using cloud-native systems and AI. We just raised a $3.5M seed round from top VCs and are building intelligent infrastructure for the future of homeownership.

We’re looking for a Senior Cloud Engineer to help us build scalable backend systems on AWS using Lambda, Step Functions, DynamoDB, EventBridge, and more. You’ll work with a modern serverless stack, integrate AI services (e.g. OpenAI, Bedrock), and help define our engineering culture alongside the CTO and founding team.

You might be a fit if you: • Have 5+ years of experience building serverless systems on AWS • Are fluent in Node.js + TypeScript • Have worked with serverless architecture and event-driven systems • Are curious about AI/LLM APIs and how to integrate them into real-world workflows • Value ownership, pragmatism, and building useful products quickly

This is a high-impact, remote-first role on a small, focused team building the foundation of a data-rich, AI-powered platform.

Remote (UTC-6 to UTC+2) Early-stage, fast-moving environment Apply: https://app.dover.com/apply/homecloud/24919848-66d7-48c0-bf5... Learn more: https://gethomecloud.com/about-us

Lumafield | https://www.lumafield.com SAN FRANCISCO, CA or CAMBRIDGE, MA – ONSITE

About Lumafield: Lumafield was founded in 2019 to upgrade manufacturing by making the most advanced tools more accessible. Our AI-driven platform and industrial CT scanning technology give engineers unprecedented visibility into their products, helping them make better decisions, faster. We’re headquartered in Cambridge, MA, with an office in San Francisco, CA. Lumafield is building the future of manufacturing through deeper insights, greater autonomy, and continuous innovation.

We recently raised our Series C funding of $75 million, further accelerating our mission to revolutionize manufacturing.

Open Roles: Backend Software Engineer (SF Bay Area) | Research Engineer (Greater Boston Area) | DevOps Engineer (SF Bay Area) | IT Specialist (SF Bay Area) | UX Designer (SF Bay Area)

Don't see a role you're looking for? Visit our careers page (https://www.lumafield.com/careers) and send us a message!

Channable | Utrecht, Netherlands | HYBRID

Channable is a fast-growing B2B SaaS platform that offers a fully integrated way to market your products online. We empower marketers and online businesses to manage, scale, and optimize their marketing.

Do you want to read more about our engineering culture? Then have a look at our popular tech blog: https://tech.channable.com

Additionally, you can also take a look at some of our open-source work at https://github.com/channable to get a feeling of how we work together and what our code looks like.

Our stack includes: Python, Haskell, Rust, PostgreSQL, Redis, Nix, Terraform, Nomad, Ansible

We're looking for a Python Software Engineer to join us: https://jobs.channable.com/o/python-software-engineer-insigh...

Artificial Analysis | https://artificialanalysis.ai | Full Stack Engineer & ML Engineer | Onsite in San Francisco or in Australia/New Zealand | Competitive Salary + Equity

Artificial Analysis is an independent AI benchmarking and insights provider. Our benchmarks help engineers and companies understand AI and make informed decisions on AI technologies.

We are hiring for two roles:

1. Full Stack Engineer: Full Stack Engineer to support our benchmarking of AI and with communicating these benchmarks to our users. Proficiency in Typescript & Python required. Familiarity with LLM APIs preferred.

Tech stack: Javascript/Typescript, Node.js, React/Next.js, Python.

2. ML Engineer: ML Engineer to support our benchmarking and evaluation of AI software stack. You will design and run benchmarks and evaluations of different AI models.

Strong analytical skills and proficiency in Python required.

Apply at hiring (-at-) artificialanalysis.ai with your resume, github and dot points on relevant experience.

OneCrew | Multiple Roles | ONSITE / HYBRID | San Francisco, CA

OneCrew is the leading unified platform helping paving contractors estimate accurately, manage crews effectively, and track profitability in real-time. We eliminate the costly mistakes and wasted time that come from juggling multiple disconnected systems—giving contractors a single source of truth to run their entire operation.

We recently closed our Series A and are looking for highly motivated individuals to own their domain and accelerate our growth.

- Engineering Manager - 3x Software Engineers (Fullstack, Frontend, Backend) - Product Manager - Growth - Director of Sales (REMOTE US OK) Find job details here: https://jobs.ashbyhq.com/onecrew and apply via email: Email is hidden