Klyo | NYC, In Person | Full Time | Full Stack Engineer | 100-150k, 1-2% Equity

At Klyo AI, we’re building the AI-powered data and marketing assistant for small businesses, starting with the med spa space. Forget dashboards, charts, and data tools—our AI seamlessly connects fragmented data to provide actionable insights, next steps, and clear answers, delivered in real time through text or email.

We’re pre-seed, growing fast (with paid clients who love us), and ready to scale. As our Founding Engineer, you’ll be at the core of building, improving, and scaling our technical foundation and direction, helping us bring this vision to life.

We are looking for product-minded full stack engineers who:

- Have had 5+ years of hands-on software engineer experience, especially at earlier stage startups - Have experience leading projects end-to-end and taking ideas from conception to execution and iteration independently - Are technically versatile: - Experience building in AI/ML or NLP agents (OpenAI, LLMs, data pipelines, etc.). - Strong backend experience with any programming language (we use python) - Has worked with AWS infrastructure and PostgreSQL - Familiar with React, Next.js or something similar for small/medium sized applications - Customer-Focused: You care about solving real problems for users and can balance technical decisions with customer impact. - Resourceful & Scrappy: You love taking ownership, moving quickly, and figuring things out with limited resources. What We Offer

- Meaningful Equity (1-2%) in a fast-growing pre-seed startup. - Competitive starting salary: $100K–$150K (with room for growth) - A chance to be a foundational part of Klyo AI and shape the technical future of a product solving real customer pain points. - A collaborative, product-focused environment with a mission to change how small businesses use their data. How to Apply

Email your resume and a few sentences about why you’re excited to join Klyo AI to Email is hidden.

Juniper (YC W21) | Senior Software Engineer | Full-time | HYBRID NYC | juniperplatform.com

Juniper is working to improve the messy financial infrastructure for US Healthcare. We've built an automated end-to-end insurance billing system for recurring care, starting with Autism clinics. It’s a product that clinicians need and love.

We automate and abstract the tedious, manual, repetitive work that goes into the administrative duties of running a clinic, so that clinicians can do what they do best — providing care.

It starts with ingesting clinic data, and then create, validates, and submits claims to insurance providers across the country. If claims need corrections or appeals, most of the time we can handle those automatically or our CX and Operations team use our in-house internal tools. We also handle patient invoicing for co-pays, co-insurance, and deductibles (we never send anything to collections).

We are a team of ~40 with strong product market fit. You’ll be working with an engineering leadership team from AWS and Stripe to get clinicians back to work delivering care for kids.

Email us at Email is hidden or apply at jobs.lever.co/juniperplatform

Resemble AI | San Francisco Bay Area (office in Mountain View, CA) | Full-Time | Full-Stack Engineer

We're creating state of the art Generative Voice AI models. Looking for full stack, frontend and machine learning engineers that would love to create prototypes directly with the founders. Recently, we open sourced a state of the art speech enhancement model: https://github.com/resemble-ai/resemble-enhance

Here's what we're looking for:

Full Stack Engineer - We are seeking a skilled Full Stack Engineer with experience with both Javascript and Python to join us. The ideal candidate will have a strong background in building and deploying web applications, a passion for working on cutting-edge AI technologies, and the ability to collaborate closely with our founders to create innovative prototypes.

Backend Engineer - Looking for Ruby on Rails and/or Python Developers to join our backend team. Scale up ML systems, make inference run more efficiently, and expose public facing APIs.

ML Engineer - Looking for engineers that are interested in deploying large foundational models and optimizing inference. Must know PyTorch well. Knowledge of ONNX, TensorRT is bonus.

If interested, reach out directly to me: Email is hidden

Primitive Instruments | https://primitive.tech | NYC or Remote | Full Time or Contract | $150k+

Hey HN, we’re looking for full stack engineers and generalists over at Primitive Instruments Corporation. At Primitive, we make tools that help hardware engineers ship faster. We work with companies building next-gen silicon to startups building small fleets of various devices.

We’ve built a ton already and have customers running their entire CI/CD stack through our platform. This includes things like per commit / nightly simulation jobs, data retention, hardware observability, and more.

If you’re interested in building next-gen infrastructure for engineers building physical devices (with an awesome and passionate team!), please shoot us an email at work at primitive.tech

Core Technology Stack: Python, Django, GraphQL, React, Next.js, Postgres, Redis, RabbitMQ and Kubernetes (also an increasing amount of Rust).

Some Tools/Libraries We Use: UV, pnpm, Turborepo, Strawberry GraphQL, Tanstack Query, Shadcn, Click, Celery, Docker, Loki, Prometheus, etc.

Primitive is a small (<5), early-stage VC-funded startup.

Astronomer | Senior Software Engineer | US REMOTE | Full-time | https://www.astronomer.io/

At Astronomer, our R&D team is dedicated to providing an exceptional experience in managing Apache Airflow at scale. As a leading player in the industry, we are seeking two experienced Software Engineers to work on our data observability product - Astro Observe.

For more details and to apply: https://jobs.ashbyhq.com/astronomer/da3426d9-9da9-47e5-aadc-... https://jobs.ashbyhq.com/astronomer/0435e8cd-03a8-4253-ac1f-...

Riot Platforms | Onsite | Austin Tx | Software Engineer

Looking for a software engineer in the Austin area that wants to work in Bitcoin mining.

https://www.riotplatforms.com/careers/

Count | Senior Software Engineer | REMOTE within UK/Europe | Full-time | https://count.co | £100-140k + Equity

Count is like Jupyter, Tableau and Miro combined in one tool. Some of the world's leading data teams use it for everything from iterating data models and performing in-depth analyses to creating process flow maps of their entire business.

We're a small team looking for experienced software engineers who are interested in tackling deep technical challenges in the data analytics space.

For the best possible user experience, we have developed various technologies in-house, including a custom WebGL rendering engine, our own data visualization library, and a reactive SQL/Python notebook and database query framework.

Example projects: accelerating rendering using quadtree tiling, extending interactivity and customizability of visualizations, leveraging LLMs in data exploration, developing serverless frameworks for executing database queries at high concurrency.

Our tech stack: TypeScript, Python, Node, WebAssembly, WebGL, Apache Arrow/Parquet, DuckDB, Kubernetes, React.

For more details and to apply: https://jobs.ashbyhq.com/count

GovPro AI / Unanet | REMOTE (US) | Full-Time | Software Engineer (AI)

We're using AI to automate the procurement cycle for the US government. We mainly work with contractors to speed up the search, research & proposal drafting parts of the bidding process. We were recently acquired by Unanet and have exciting plans making use of the latest developments in multimodal models and agentic frameworks.

Looking for TypeScript engineers with experience using Vue. Experience using AI models, building in Palantir Foundry, and deploying in AWS are all a plus. Clearance is NOT required but a huge plus.

Base salary range is $135,400 to $157,500 (excludes bonus and stock).

https://job-boards.greenhouse.io/embed/job_app?for=unanet&to...

Mention you were referred by @cuuupid in your application!

Lily AI | Remote, +/- 3hrs PST (US, Canada, South America) | Staff ML Engineer, Staff Software Engineer | https://www.lily.ai

We are a well-funded startup driving the next wave of innovation in product discovery and personalization. Our work spans exciting use cases such as deep product attribution, automated copy generation, streamlined item setup, and enhancing search and recommendation systems, among others. Our team of scientists and engineers specializes in Computer Vision and Natural Language Processing (NLP), tackling a diverse array of challenging and impactful problems. We take pride in leading the industry with the unparalleled depth of our taxonomy.

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Staff ML Engineer

Apply here: https://www.lily.ai/job/?gh_jid=6235560003

As a Staff Machine Learning Engineer, you will play a pivotal role in advancing our ML platform, encompassing data pipelines, training processes, and inference workflows. Collaborating closely with machine learning scientists, engineers, and product managers, you will help shape the ML roadmap, make critical architectural decisions regarding MLOps, and contribute to the company’s overarching AI strategy.

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Staff Software Engineer, Platform Engineering

Apply here: https://www.lily.ai/job/?gh_jid=6237871003

As a Staff Software Engineer, you will join a team responsible for developing the core product attributes platform. You will address challenges related to scalability, data integration, and building a high-performance backend infrastructure that powers outstanding user experiences.

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I am the hiring manager, feel free to reach out to me directly at anand AT lily DOT ai.

Krea | Engineering and Research Staff | Full-time | San Francisco, CA in Person | 75th percentile market rate on both salary and equity (at least)

Hi, I’m Diego Rodriguez, cofounder and CTO of Krea. We are building a set of creative tools to enable designers and artists to use AI for multimedia: make images, make videos, … we also want to help them create across other modalities like 3D or sound. We are looking for people across a wide spectrum of software engineering and AI research roles: web development, database administration, cluster management, site reliability, iOS development, ML infrastructure engineering, ML researcher (e.g. multimodal research applied to controllability of diffusion models), API development, security engineers… just apply if you find us interesting!

Top-tier venture firms have backed us—as well as extraordinary individuals across AI research and engineering (e.g. founding member of OpenAI, cofounder of Facebook AI Research now knows as Meta AI, or the ex-president of Disney).

Our team is extremely small (8 at the time of writing) but we’re growing fast. We’ll be 12 in a few weeks and our usage and revenue is growing too. You’ll be at an environmental with a lot of freedom and notable for its lack of BS. We still don’t use Slack for internal communication!

The set of challenges we’ll face this year range from graphics optimizations around performance (both on Web and iOS) as well as scaling our CPU+GPU infrastructure. For instance, serving millions of concurrent creative professionals or building the infrastructure of our newly formed AI research lab (greenfield project!).

If you want more details of any kind, please apply to Email is hidden (include the “hn” to be prioritized). Make the email self-contained; no need for resume / the mail is the resume.