SerpApi | https://serpapi.com | Junior to Senior Fullstack Engineer multiple positions | Customer Success Engineer | Hiring Coordinator | Python/Ruby/PHP/Js/Rust/Cotlin/C#/Crystal/Nim/Elixir Developer Advocate positions | Based in Austin, TX but remote-first structure | Full-time | ONSITE or FULLY REMOTE | $150K - 180K a year 1099 for US or local avg + 20% for outside the US

SerpApi is the leading API to scrape and parse search engine results. We deeply support Google, Google Maps, Google Images, Bing, Baidu, and a lot more.

Our current stack is Ruby, Rails, MongoDB, and React.JS. We are looking for more Junior and Senior FullStack Engineers.

We have an awesome work environment: We are a remote first company (before Covid!). We do continuous integration, continuous deployments, code reviews, code pairings, profit sharing, and most of communication is async via GitHub.

We value super strongly transparency, do open books, have a public roadmap, and contribute to the EFF.

Apply at: https://serpapi.com/careers

Littlebird | Senior MLE + Senior Swift Engineers | Remote (global) | https://littlebird.ai/

Littlebird is working on a digital twin for Mac + Android to make anyone more productive, no matter what apps they use. Our team is well funded (~$5M+ seed) and remote-first, and passionate about building a product anyone can use. We're hiring developers with a passion for engineering-led cultures, knowledge graphs, search, contextual understanding, and designing infrastructure that can scale.

Core stack: Typescript, React, Swift, python, Postgres, AWS, some Rust

Apply here:

Senior Applied AI Engineer: https://scarlet-magician-747.notion.site/Senior-AI-ML-Engine...

Senior Swift Engineer: https://scarlet-magician-747.notion.site/Senior-Swift-Engine...

Konvu | https://konvu.com/ | Software Engineer | FULLTIME | ONSITE | Paris, France

At Konvu, we’re on a mission to make security invisible. As we move towards a future dominated by code automatically generated, tested, and deployed by AIs, we need a new paradigm for application security. Vulnerabilities must be automatically detected, prioritized, and remediated.

Behind Konvu are founders with deep roots in the security industry. As early employees at Sqreen YCW18, a notable security startup acquired by Datadog, we have firsthand experience in driving security solutions from concept to global impact.

We’re looking for:

* Product Engineer https://jobs.ashbyhq.com/konvu/be7be978-08be-4672-a9e5-a559e...

* Product Engineer (AI Agents) https://jobs.ashbyhq.com/konvu/be028b43-a7a7-4f0a-b968-320dd...

Read more about how we're building Konvu the YC-way: https://konvu.com/blog/yc-culture

Sonix | Senior Full-Stack Engineer | Remote (US only) | Full-time | Ruby on Rails + React

Sonix (https://sonix.ai) is an AI-powered transcription and translation platform used by thousands of businesses, researchers, media teams, and legal professionals around the world. We’re profitable, bootstrapped, and growing fast.

We're looking for a senior full-stack engineer to join our small team. You'll work directly with the founder/CTO (me) on everything from AI feature development to infrastructure to working with our support team to squash bugs. Our stack is Rails + React + Postgres + Redis.

It’s a great role if you love shipping quickly, owning big parts of the product, and working on a product people actually use every day.

More details here: https://sonix.ai/careers/senior-software-engineer Email me directly: stephen@sonix.ai

Opsin Security | San Jose / SF Bay Area (Hybrid, 2–3 days on-site) | Full-time | https://opsinsecurity.com/careers

Opsin helps enterprises secure and deploy Enterprise Search/AI systems (e.g. Microsoft Copilot, Google Gemini) responsibly without exposing sensitive data. Venture-backed by Race Capital. You’ll work directly with the founders on a small (<10) person team shipping fast in a huge green-field space.

We are hiring for:

- Senior AI Engineer – 5 + yrs backend + 2 + yrs ML/LLM; Python, SQL, AWS/GCP experience; comp + eq (https://www.opsinsecurity.com/jobs/senior-engineer-ai-engine...)

- Senior Full-Stack Engineer – 4–8 yrs shipping product; React/Next.js + API & DB design + Nest.js; TypeScript, Python a plus; comp + eq (https://www.opsinsecurity.com/jobs/senior-engineer-full-stac...)

- Staff Backend Engineer – 8 + yrs building scalable systems + 2 + yrs technical leadership; architect data-driven services for LLM security; comp + eq (https://www.opsinsecurity.com/jobs/staff-engineer-backend)

- Founding Account Executive – full-cycle sales to CISOs/CIOs; 5 + yrs enterprise SaaS; cybersecurity/Microsoft ecosystem a plus; ~50% travel; comp + eq (https://www.opsinsecurity.com/jobs/founding-account-executiv...)

Tech stack: Python, TypeScript (Nest.js), React (Next.js), Postgres, Azure, modern LLM tooling

How to apply: email your résumé + a short note to careers@opsinsecurity.com with subject “HN – [role]”, or apply on our careers page.

I’m Shay Nehmad, Founding Engineer at the company. Happy to answer questions at shay@opsinsecurity.com or on LinkedIn

Aleph | Senior Software Engineers (frontend, backend, fullstack), Eng Managers | Fully Remote (ET to PT hours) | Full-time | https://www.getaleph.com

Aleph is an AI-native platform for Financial Planning & Analysis (FP&A). We operate in an established software category with a multi-billion market but no clear winner. Our growth has come from product velocity and customer outcomes, not marketing spend, and the results speak for themselves.

We're backed by top VCs (Bain Capital Ventures, Khosla Ventures, YC, Picus Capital), and work with customers like Eight Sleep, Webflow, Turo, Notion, Zapier and others.

Our tech stack: TypeScript, React, Python, Mongo, GCP

See all open positions and more details in https://www.getaleph.com/careers#open-roles

StrongDM | [Staff, Senior, Junior] AI Agent Engineer | San Francisco Bay Area (Palo Alto) | Full-Time | ONSITE

StrongDM applies deep tech to hard problems for demanding cybersecurity customers. Our embrace of large language models continues that tradition, achieving useful and reliable outputs from ambiguous and non-deterministic inputs.

Join me (Justin, co-founder & CTO) and our newly-formed AI Agent team to help our global customers secure their most critical systems.

Ideally: if you've already decided you need to be working on the edge of this technology wave & you're open to doing so in person at a physical whiteboard, e-mail me a few words to that effect (justin@strongdm.com).

Optionally: read more at http://strongdm.com/careers

Nelknet (https://nelknet.com/) | Senior contractors, frontend and backend | Remote (US & international, but some overlap with clients needed) We're a small, experienced team building software solutions for US-based clients. Recent projects include:

- Building ChatGPT-style interfaces for intelligence report analysis

- Developing generative AI features for professional networking platforms

- Platform engineering for logistics/trucking management systems

- Architecture design for real estate search engines

- Implementing RAG pipelines for edtech products

We're expanding our network of senior contractors (both frontend and backend). This is a 1099 contracting relationship - you'll have the flexibility to manage your own schedule and potentially work with other clients while maintaining a professional commitment to our projects.

Requirements: - Strong English communication skills - Senior-level development expertise - Experience with modern tech stacks - Ability to work independently while collaborating effectively - Some level of US business hours availability

If you're interested, please fill out our intake form: https://baserow.io/form/mXa6NqUOKw9CcDPAU37oPh1uOPFHHESph6k0...

If we have a project that is well-suited to your skillset, I will definitely be reaching out!

Looking forward to connecting!

Property Meld | Mid-level and Senior Software Engineers, Product Designer, Product Manager | Full-time | Remote (US & Canada) or Rapid City, SD

Looking for something more meaningful? How about the opportunity to have a direct impact on the property maintenance experience for hundreds of thousands of residents?

Welcome to the future of property maintenance. Property Meld’s vision is to radically improve how the property management industry handles property maintenance. If you’ve ever had a maintenance issue at your housing rental, you know how much of a pain it can be to get it fixed quickly and reliably. It doesn't have to be this way. We're rethinking the entire property maintenance experience from the ground up with two things in mind - first, driving the cost of doing maintenance to the absolute minimum, and second, providing an experience to residents and property owners that makes them want to stay with their property manager. If you are excited about turning something that has historically been a negative experience (maintenance) into a positive experience, we'd love to talk with you.

Stack: Python, Django, Typescript, React, React Native, PostgreSQL

Product Designer: https://property-meld.breezy.hr/p/92a5b2db4b2c-product-desig... Product Manager: https://property-meld.breezy.hr/p/7023bbc73369-product-manag... Engineer postings are not up yet, but you can apply via the email below.

Apply through our career page or you can email us at `tech.jobs at propertymeld.com`

Stytch | Hiring a Designer and Software Engineers | ONSITE / HYBRID in San Francisco, California | https://stytch.com

About us: Stytch is the identity platform for humans & AI agents. We're making it easy to build authentication, authorization, and security + fraud prevention for both humans and AI agents.

Today we just shipped IsAgent, a tool to identify AI agent traffic and build agent-ready experiences: https://stytch.com/blog/introducing-is-agent/ - I've also got a Show HN post up with more details if you're curious.

We're hiring a designer and some software engineers to build dev-friendly products to make auth and AI readiness easy. More specific details on the job postings here: https://jobs.ashbyhq.com/stytch

Chronograph (chronograph.pe) | DevOps Engineer | Full-Time | Remote (US) | $140-160K USD + equity

Chronograph was founded to bring next-generation technology to private capital markets. Through our suite of cloud-based analytics and data management solutions, we help many of the world’s largest and most sophisticated venture capital, private equity, and credit funds understand their investment performance in unprecedented detail.

We are looking for a candidate with a generalist background in software development, including 3-5+ years of experience on DevOps, Platform Engineering, Site Reliability Engineering (SRE), or MLOps teams. You’d be joining a small cross-functional team and have the chance to make critical contributions as we scale our engineering team and business.

Our ideal candidate has a passion for automating ops, troubleshooting infrastructure, and creating first-class developer experiences. On top of that, expertise with the following (or similar) tools/technologies is a strong signal of fit: Kubernetes, Prometheus, Grafana, Terraform, AWS, GitHub Actions, PostgreSQL, Node.js, Ruby on Rails, Nix, and Docker.

Note that while this is a remote position, travel to our NYC HQ 3x/year for "team week” on-sites is required.

If interested, apply here: https://grnh.se/1q1yybxf7us

Converge (YC S23) | Founding Product Engineer | NYC ONSITE | Full Time | 230k + 0.8%

We're a small team of 6, but scaled to $1.4M+ in ARR across ~200 customers and recently raised $5.6M from YC and the founders of Posthog, Algolia, Showpad, Shipbob, etc.

We're building the entire data stack of a marketeer in-house and deeply integrated. This offers them a 10x better product experience to understand where they're acquiring customers from.

Our infra processes ~4000 jobs/s and billions of $ in e-commerce transactions. We're building realtime data pipelines and complex data analysis tools -- lots of interesting challenges.

Have a look here for more info - runconverge.com/careers

OCEANE | Quantitative Trader | Onsite | Abu Dhabi, UAE | Full-time | https://www.oceaneinvest.com/

OCEANE is a proprietary trading firm focused on ETFs and equities across GCC and global markets. We specialize in market making and quantitative strategies, powered by our in-house systems.

We're looking for a Quantitative Trader to join our Abu Dhabi team. You'll work closely with our engineers to develop, test, and execute intraday strategies across regional and international exchanges.

You should: Have 5+ years of experience in systematic or ETF trading. Comfort working in fast-paced environments with real capital. Understand market microstructure and trade execution dynamics. Have strong Python, C++, Rust skills for backtesting and prototyping. Want to be part of a small, ambitious team building from the ground up.

Please see the website for more details and contact info.

Fold | Remote (US Only) | Senior Frontend Engineer, Senior Design Engineer, Lead QA Engineer | Full-time Fold makes Bitcoin easy through great UX and rewards. We’re building the future of Bitcoin payments and need senior engineers to help us scale.

Senior Frontend Engineer – Work on our React Native apps, ship features and own architecture. • 5+ years exp, React Native, TypeScript, Expo • Bonus: Fold user, passion for Bitcoin

Senior Design Engineer – Build and scale our design system in React Native. • Strong in React Native, TypeScript, modern component libraries • Bonus: Storybook, Framer Motion, design system expertise

Lead QA Engineer – Own automation, quality strategy, and mobile release confidence. • 5+ years in QA, 2+ leading QA or owning strategy • Experience with iOs and Android automation, Maestro/Detox/Appium

Perks: competitive salary + equity, 401k match, unlimited PTO, full benefits, yearly vacation stipend, no Monday meetings, Bitcoin starter pack.

Email tiffany.sawhney (a) foldapp.com or apply here: https://ats.rippling.com/fold-inc/jobs More: https://foldapp.com

Duranta | https://www.getduranta.com/ | Seattle, WA | ONSITE | Full-time

Roles: Computer Vision Engineer

We are building software to help lawn care professionals & landscapers design, sell and maintain beautiful spaces. Millions of acres a year are converted into urban dwelling spaces, and we want to help make them as beautiful and as ecologically friendly as possible.

Duranta was founded a little more than a year ago. We are well funded and are expanding our team. Join us, as our second CV/ML engineer and help lead Duranta's computer vision efforts. You'll work on foundational models for aerial imagery understanding, using one of the largest aerial datasets ever assembled, and:

- Collaborate with the founders and a world-class CV/ML advisor to push the limits of aerial image understanding

- Architect scalable training & inference pipelines

- Build and refine models for fine-grained semantic and instance segmentation

- Drive experimentation and infrastructure for rapid iteration

- Help define our CV roadmap—from model architecture to dataset strategy to active learning

Stack: Python, PyTorch, Mask2Former, SwinV2, AWS, W&B

If you're interested in working with us, please apply online. Mention you're from HN and let us know why Duranta is of interest and what you've been working on lately.

Please apply on: https://jobs.lever.co/getduranta

Ground Signal | Remote (US only) | Multiple Roles | Full Time | https://groundsignal.ai

Ground Signal uses social analytics and AI to help suppliers in the alcohol industry optimize sales. Our platform processes billions of records and delivers insights through a robust SaaS product used by top-tier analysts and global brands.

We're a fully remote team of 20+ distributed across the US. We care about capability over titles, value outcomes over process, and keep ego to a minimum. We collaborate tightly, move fast, and meet up in person a few times a year to recharge and plan together.

We are currently recruiting for the following positions. We are not able to sponsor at this time.

Software Engineer (Backend, Python, PostgreSQL, ClickHouse, dbt) https://wellfound.com/l/2BiEQL

Associate Data Engineer (Python, SQL) https://wellfound.com/l/2BtEEq

Data Insights Engineer (Python, Jupyter, SQL) https://wellfound.com/l/2zf39a

Product Designer (UX/UI design for complex data/analytics) https://wellfound.com/l/2Bn56J

Matroid | DL/AI/CV, Infra, WebApp, Field Software Engineer positions | San Francisco Bay Area (Palo Alto) | Full-Time | ONSITE

Matroid brings cutting edge computer vision to visual inspection, with a “no programming required” product that empowers businesses and industry to solve their unique inspection challenges.

We’re a rapidly growing Series B funded startup, with customers in the manufacturing and video security industries.

We’re looking for top engineers - both junior and senior - who are excited about solving hard problems in and alongside computer vision and productizing it to serve real-world use-cases.

$150K-$300K +equity, depending on role and expertise.

Tech stack includes:

  Deep Learning / CV: Python, PyTorch

  Infra: Kubernetes, Kafka, Redis, AWS

  WebApp: React, Node, Mongo, Docker

Chroma | ONSITE - San Francisco | Full-time | https://trychroma.com

Chroma is the open-source search and retrieval database for AI applications. It's an open-source database with vector, regex, and full-text search. We support local, single-node, and cloud hosting. Help build the future of context engineering!

We're a team of 17, all engineers today. We work in Rust, Python, Typescript, and Go.

We're hiring for these areas:

- Head of operations

- Product design

- Production engineering

- Platform engineer (Rust)

Apply here: https://jobs.ashbyhq.com/trychroma/9ed3aee8-07dd-44e3-9ca1-d...

More details at: https://careers.trychroma.com

Checkly | Multiple Roles | REMOTE (UTC +3 to UTC -3) | Full time | https://www.checklyhq.com/

Checkly helps engineers build reliable products by unifying testing, monitoring and observability. OpenTelemetry, Playwright, and Monitoring as Code are our foundation for unifying performance and reliability. In 2024, we raised $20M in Series B funding from Balderton, CRV, and Accel to take things to the next level.

-Senior/Staff UX Designer -Senior Backend Engineer -Staff Product Manager

See the full descriptions and apply here (and mention HN): https://jobs.ashbyhq.com/checkly?utm_source=hn

i’ve seen this role come up a few times over the past couple months, i applied a while back but didn’t hear back. Just curious, are you still reviewing applications, building a database for later, or do you usually just dismiss candidates without replying?