Quest | SF | Onsite

New Consumer AI company, raised $6m pre-seed. Looking for founding engineers. $200k+, significant equity. Reach out to founders@newquest.ai

Freetrade | London, Budapest (ONSITE) | Full-time | https://freetrade.io | £75k-£140k

Freetrade is a commission-free investing app used by over 1 million people in the UK. Our team is expanding, and we’re seeking software engineers to evolve and scale our core investing platform.

In this role, you will be instrumental in building and maintaining reliable and trustworthy systems for trade execution, clearing and settlement, asset servicing, and internal operational tools.

You will also play a key role in shaping our technical direction and mentoring other engineers as our team grows.

Tech we use: TypeScript, Node.js, Postgres, and GCP

Note: We are three days in the office We don’t sponsor visas at the moment.

We are hiring across the board in engineering, data, people, marketing, risk & compliance and finance.

See all of our opportunities here: https://freetrade.io/careers

Squint | Onsite, San Francisco + remote for some roles | Squint is the leading manufacturing intelligence platform. We're leveraging the latest in AI, spatial, and hardware capabilities to accelerate human potential and spark the next industrial revolution.

What makes Squint special? - Our customers include some of the most iconic manufacturing brands across Food and Beverage, Automotive, and Consumer Package Goods. Work here literally transforms how the world around you is made.

- We're not replacing people with AI, we're up-leveling them; capturing insights, turbocharging workflows on the factory floor, and making every operator an expert.

- We're bringing consumer-grade quality to enterprise software, combining cutting-edge tech with deep customer empathy to build a product that's powerful, magical, and deeply loved by our users.

High Priority Open Roles:

- Applied AI Engineer (Mid-level to Staff+)

- Software Engineer, Backend

- Product Manager

- Senior Accounting Manager

- Director of Enterprise Sales, Energy Sector

- Strategic Enterprise Account Executive

- Senior Sales Engineer

View full list of roles and apply here: https://jobs.ashbyhq.com/squint.ai?utm_source=Hackernews

Shinzo (https://shinzo.network)| USA/Canada + REMOTE | Multiple Full-Time Roles

We're building the read layer for blockchains. The irony of "trustless" applications depending on centralized indexers like Alchemy or The Graph isn't lost on us—we're fixing it.

Shinzo embeds indexing directly into validators, turning blockchain data into a cryptographically verifiable public good. No trusted intermediaries, no API keys, no "please don't rate limit me" prayers at 2am.

Stack: Go, Rust, WebAssembly, Merkle CRDTs, recursive SNARKs, LibP2P, GraphQL, Cosmos SDK/EVM

Hiring:

-DX Engineer - Indexer Migration - https://bit.ly/3YBwhBn

-Senior Blockchain Indexer Engineer - https://bit.ly/4sHQkLY

-Senior Cross-Chain Smart Contract Engineer - https://bit.ly/49BzJAN

-Protocol Engineer - Blockchain - https://bit.ly/4sDRica

We're pre-mainnet with real technical differentiation—not another "decentralized" project that's actually three EC2 instances in a trench coat. If you've ever been mass-migrated off a deprecated API endpoint or debugged why your subgraph stopped syncing, you understand the problem we're solving. We care more about what you can build than where you went to school.

Twindo (formerly Canvas) | Full-time | Remote

We just rebranded! At Twindo, we’re working on spatial computing - using computer vision to 3D reconstruct and understand your surroundings so that software can operate over real-world spaces. We believe it will power the next generation of augmented reality and key parts of virtual reality as well.

iOS Engineer - Remote, LatAm/Europe iOS & Backend Engineer - Remote, LatAm, Europe

For detailed information, check out https://www.twindo.com/careers/

Keywords: 3D, computer vision, photogrammetry, geomatics, SLAM

Microsoft | Senior SWE | Redmond, Wa

Hiring developers from Datacenter/Cluster buildout background for Networking stack. Experience with High Performance Computing / GPU / Interconnects (NvLink/Infiniband) preferable. Please respond if there is any match to above background.

Instinct Science | Sr. Full-Stack Engineer | REMOTE (US)

Instinct is building AI-forward SaaS products that serve the veterinary world. We are growing our talented Engineering team and looking for people who thrive with autonomy and want to solve hard problems.

Stack: Elixir, React, AWS, GraphQL

Learn more and apply: https://instinctscience.applytojob.com/apply/1H156iuuzg/Seni...

Teamtailor | AI Product Developer | REMOTE (EU) or HYBRID (Stockholm/Gothenburg/Linköping, Sweden)

Hi! I'm CJ, Head of Product at Teamtailor (https://teamtailor.com). We're a bootstrapped scale-up based in Stockholm, Sweden but with a global presence. 600 people spread out all over the world. Our Product/Engineering team consists of 60 amazing developers and designers, with an average experience of 14+ years. All working together to build an ATS (Applicant Tracking System) that's loved by candidates and recruiters — with AI at the core.

We launched our first AI-enabled features back in 2023, and having continued to improve and expand them since then. Our users and customers love it.

We're looking for more fullstack developers with experience integrating LLMs and want to help us build the future of AI-enabled, human recruitment.

Stack: Ruby on Rails, Ember.js, TypeScript. Shape Up method.

Learn more and apply: https://career.teamtailor.com/jobs/7046336-ai-product-develo...

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.

stephen@gointegral.co — 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

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: info@xfigura.ai (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

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 nicole@greyrhino.ai

At CloudX (https://cloudx.io) we’re building a new supply-side advertising platform for mobile publishers. Yes, it's ads, and yes, there's AI involved, so stop reading here if that's not interesting to you.

It's a gnarly infra problem with huge scale, combined with an interesting product space that we think legitimately benefits from tasteful AI automation. We're doing cool things with Nitro Enclaves to prove that our auctions are fair. And our founding team have done this before with great success, first at MoPub (sold to Twitter) and MAX (sold to AppLovin).

We're hiring (all remote) for:

- Senior Fullstack Engineer https://jobs.gem.com/cloudx/am9icG9zdDogum5THF3fORqb1eEupFQx

- Senior Infrastructure Engineer https://jobs.gem.com/cloudx/am9icG9zdDo4vl4A1sEcc7sDQf8ZYiqR

- Senior Android SDK Engineer https://jobs.gem.com/cloudx/am9icG9zdDqPAWu1cxr3PmEuuTIdliI6

- Senior iOS SDK Engineer https://jobs.gem.com/cloudx/am9icG9zdDpOy3Qmt1fLsOu4gKwtwWTz

Our philosophy is to keep the team small, well-paid, and productive. We deploy every day and our monorepo CI suite takes about a minute to pass.

The best way to apply is directly through those jobs pages. I got so much direct email spam the last time I posted here, I'm afraid I have to ask you not to contact me directly about this role. If you're a real HN reader you're always welcome to contact me with any questions or concerns, but please do not just apply by sending me an email.

Any other hiring managers seeing an incredible amount of fake applicants?

Dusk Labs | Lead Software Engineer (Back-end, Rust, Fintech) | Remote (US time zone) | Full-time

Dusk Labs is a software development agency that helps early-stage companies kick-start their engineering operations, or mid-stage companies develop greenfield software projects.

We're looking for a lead software engineer to help build a high performance perpetual futures exchange. This role requires expertise in low-latency systems, distributed architectures, and financial infrastructure. As a lead engineer, you'll also need to understand delegation and mentorship.

For more details or to submit an application, check out the job listing at https://jobs.dusklabs.xyz/38548.

Augmental | Senior Software Engineer (Embedded/Full Stack) | San Francisco, CA US | full-time | ONSITE

Build in-mouth HID and other wearable HCI with us! We develop novel human-computer interaction devices, with a focus on assistive tech and AI interfaces. Our flagship product, the MouthPad^, is an intraoral wearable device that unlocks expressive computer control for people with severely limited hand mobility. Our upcoming product, a consumer wearable prototype, enables next-generation AI interactions while also empowering people with disabilities, continuing our mission to advance seamless, equitable access to the digital world.

Details and contact info at https://www.augmental.tech/join-us/software

Journalytic | UI Developer (React/TypeScript) | REMOTE (US time zones) | Full-time

Journalytic is an early-stage company building a mission-critical operating system for professional investment teams. We combine behavioral science, structured workflows, and well-crafted software to help hedge funds, family offices, and RIAs make better decisions every day.

We’re a remote team with hubs in Pennsylvania, California, and Seattle. This role is perfect for an engineer who relishes complex technical challenges in a fast-paced startup environment. You’ll be joining a team of passionate A+ players who will support you and challenge you to grow. You won’t be a small cog in a big machine. Your work will have a direct impact on how the world’s best investors operate.

For full details and to apply, visit https://jobs.journalytic.com