Integral | Full-Stack Developer | REMOTE (US)

I'm Stephen, founder of Integral. We're a fractional CTO firm for scaling businesses ($10M-$100M) drowning in SaaS sprawl, broken automations, and data scattered across 20+ tools.

What you'd work on: - Building unified dashboards pulling from Shopify, Stripe, HubSpot, and ad platforms (Meta, TikTok, Google) - Multi-system automations: HubSpot → SamCart → Klaviyo → Circle cancellation cascades - Custom web apps (React/TypeScript, Supabase) when off-the-shelf fails - Debugging/replacing complex Zapier/N8N workflows across client ecosystems - API integrations with whatever the client uses—we've touched trigger.dev, hubspot, asana, samcart, AWS, and many more this month alone

The role: You own your clients. Not "execute tickets"—actually understand their business, propose solutions, join calls (only when needed.) Small team, high autonomy, direct founder access. We're integration specialists, not a body shop.

Stack: TypeScript, React, Python, Node, Supabase/Postgres, REST APIs — end to end. Bonus points if your execution is deeply engineering-driven.

What we're not: Big tech process, Jira hell, or "ticket monkey" work. We move fast on real problems for real businesses. However, that does not mean we aren't highly organized and efficient.

Contractor, ~20-30 hrs/week to start. US timezone overlap required.

Email is hidden — tell me about a messy integration you've fixed.

Tracebit | https://tracebit.com | London/New York| Full-Time

Tracebit is an Accel backed, UK founded security product company taking a new look at canaries for intrusion detection.

We work with some amazing companies (Docker, Riot Games, Synthesia, Zepz...) to help detect threats in cloud and enterprise.

We're hiring:

* Founding Engineer | London | £60-120k + generous equity | Relocation & Visa sponsorship available

* Founding Account Executive | New York | $180-200k OTE + generous equity

* Founding Sales Engineer | New York / Remote | $180-220k OTE + generous equity

Learn more and apply: https://tracebit.com/careers#section_open-positions

Gaia AI | Fullstack Platform Engineer | Robotic Perception Engineer | Full-Time | Boston

Hi, I’m Mel at Gaia AI (https://www.gaia-ai.eco/).

We’re a small GreenTech startup in Boston building hardware and software in the forestry space.

Role: Full stack / platform engineer working on the web app and mobile app. Our stack includes TypeScript, React, Mongo, AWS, and React-native.

Role: Robotic Perception / Computer Vision / Machine Learning engineer working on a sensor-packed backpack for foresters. Our stack includes LiDAR, Vision, SLAM, and Rust.

Preferred Years of Experience: >= 3

Company Size: 7 people

Company Location: Downtown Boston near South Station

For Fullstack apply here: https://docs.google.com/forms/d/e/1faipqlsexplh__tmz_eirs4yq...

For Perception apply here: https://forms.gle/t7uwlgo5ugadkzraa

Feel free to reach out to me with questions: mel at gaia-ai.eco

Corsha | Tysons, VA (Hybrid) | Full-time

Corsha is a cybersecurity startup in the DC area. We offer a dual-use cybersecurity product for Operational Technology (OT) environments to our customers. Our mission is to secure the Operational Systems that run our world!

We are seeking technical roles across product development, data science, and ot security engineers. We are a mission driven company and want to bring on like-minded folks interested in making a difference!

Easiest way to apply is through the job links below but reach out if folks have any questions!

Current jobs we have open: - Data Scientist: https://www.linkedin.com/jobs/view/4339829577/ - Backend Software Engineer: https://www.linkedin.com/jobs/view/4339489650/ - OT Security Engineer: https://www.linkedin.com/jobs/view/4339819841/

Strata Core | Founding AI Architect | Remote (India) | $30k-$40k + Equity Building the "Sovereign OS" for supply chain compliance. We replace manual audits with multi-agentic workforces (Halal/ESG). Stack: Python, LangGraph, Vector DBs, Azure OpenAI. Role: Build the RAG infrastructure + Tenant Isolation from scratch Apply https://peerlist.io/company/stratacoreai/careers/founding-ai...

Hey HN - I'm George, founder of xFigura. We're building the AI-native creative canvas for architects - Figma for the built world.

The problem: Architects design where you live, work, get surgery, send your kids to school. Their tools? AutoCAD (1982). Revit (2000). The physical world runs on software older than the iPhone.

Six months in, we have 5 of the top 20 architecture firms using the product. No marketing, $0 to $1M ARR in less than a year, and we just closed a $3M seed round.

What we're building: AI orchestration across 50+ generative models, infinite canvas collaboration, native CAD integrations (Rhino, Speckle, Revit), enterprise RAG for firm-specific knowledge.

Stack: DynamoDB, Next.js, Tailwind, AWS, FastAPI. Looking for someone who's shipped production AI systems and is in the 99th percentile of using AI in their own workflow (Cursor, Claude, etc.).

Small team, huge ownership. You'd own entire systems, not tickets.

Email me directly: Email is hidden (mention HN in Subject)

coreflow | Software Engineers | Sydney, Australia | Full-time | ONSITE | $300-600k AUD

We’re building the future of entertainment with AI. We’ve scaled to 20m+ users in less than a year and are one of the fastest-growing consumer AI startups globally.

You’ll be an early engineer owning core product and infrastructure decisions as we scale to hundreds of millions of users.

Apply here: https://jobs.ashbyhq.com/coreflow

Microsoft Azure Data | Senior Software Engineer (Vector DB) | US Redmond/Remote We build the engine (https://github.com/microsoft/diskann) that brings vector search capabilities to Azure Databases and most other at-scale search/RAG systems at Microsoft. See aka.ms/AboutDiskANN

Looking for Rust developers to join our team of researchers and engineers. Experience with performance engineering, OSS development, Database internals, or numerical methods a plus.

https://apply.careers.microsoft.com/careers?query=200019455&...

Office Hours | Software Engineer (all levels) | SF, NYC, or Remote (US) | https://officehours.com We connect organizations (AI labs, startups, investors, consulting firms) with experts for paid calls, surveys, and model training. We're profitable and growing quickly.

We’re a small, senior team of product-minded engineers who value quality, simplicity, curiosity, and collaboration.

Some of the problems we're actively working on: - Workflow automation: Designing agent-driven workflows that are driving real impact for the business and our customers - Search: Building semantic + keyword retrieval over large amounts of data - Knowledge graph: Modeling relationships between people, companies, topics, and interactions to power recommendations and discovery - New products: 0-1 work across new interaction types and mediums

Stack: TypeScript, Node, Postgres, OpenSearch, Temporal | React, Next.js, Tailwind | AWS

Open roles:

- Senior/Staff Software Engineer: https://jobs.ashbyhq.com/office-hours/f9e9f476-100b-4d86-b36... - Software Engineer: https://jobs.ashbyhq.com/office-hours/664c0299-27c5-4550-91e... - Senior Product Designer: https://jobs.ashbyhq.com/office-hours/d4ad4cb1-8ccd-49a9-b97...

P.S. If you apply, mention HN. Helps separate signal from noise.

At Grey Rhino (www.greyrhino.ai), we are a growing stealth-mode hedge fund focused on systematic and data-driven investment strategies where our alpha is in measuring disruptions to global companies.

We're hiring (Remote - US) for: - Lead Quantitative Developer / Engineer https://wellfound.com/l/2c27e8 to help design and enhance our fully systematic trading infrastructure and work alongside our portfolio manager to enhance trading signals

The best way to apply is to click on the job page or email me at Email is hidden