Clerq | Senior/Staff Engineer | onsite (NYC) | https://clerq.io

Clerq is a NYC based fintech startup building the next generation platform payments platform delivers a seamless checkout experience for high-ticket transactions. By leveraging modern bank rails, the platform offers the conversion and UX benefits of cards with risk and money movement infrastructure purpose-built for large purchases. Clerq replaces outdated manual payment methods like cash, checks and wires and expensive card surcharges with a smooth, integrated solution that helps merchants convert more customers without sacrificing margins.

We have started with the $1T+ U.S. auto vertical, where our platform is growing rapidly and already powering payments for several of the most recognized brands in the industry including multiple Fortune 500 companies. With proven traction, the company has expanded into high-growth adjacencies including high-ticket e-commerce, private travel and powersports.

We are a lean team and looking for senior or staff level engineers to help us accelerate our growth and build a future that doesn't rely on credit card networks.

Stack: Python/Django, React, Nodejs, AWS Comp: $180-210k + Equity

Email me at Email is hidden if you are interested in hearing more!

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: Email is hidden

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 Email is hidden with subject “HN – [role]”, or apply on our careers page.

I’m Shay Nehmad, Founding Engineer at the company. Happy to answer questions at Email is hidden 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 (Email is hidden).

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`