Fabric (stealth) | Lead Applied AI Engineer | NYC or SF | FTE remote | $150-200k USD + significant equity

Project Fabric is an AI‑driven consumer platform to reimagine how people connect in cities, and help solve modern loneliness. In a world where almost every AI is single-player, Fabric is about multiplayer: helping people discover, connect, and spend time together, not just chat with bots.

Our product is live in a small, curated beta with some of the most interesting people in NYC, with good early traction. We're looking for a high-impact Tech Lead to design, implement and scale new AI features and systems as we prepare to launch publicly.

What we're looking for: - 7+ YOE with a blend of modern web stacks and applied ML - Proven exp building in React eco-system, cloud-infra, MLOps, security - TL experience leading major features for consumer products - Prior work w/ search, recommendations, inference, RAG, performance

Full Job description + Apply details: https://studiomgmt.notion.site/lead-applied-ai-engineer-2658...

Strum AI | Founding/Lead Engineer | https://www.linkedin.com/company/strum-ai/

At Strum, we're reimagining technology that powers global supply chain using a fresh AI-first approach. Most supply chains are still stuck with Excel or enterprise tools that take months (and $MM) to adopt. Our mission is to lower that barrier — making it possible for any business, big or small, to access modern forecasting, inventory, and planning solutions in days, not months. We’re on our journey to democratizing supply chain technology. As our first engineer, you’ll be working with the founders (former Supply chain/tech directors at Amazon who have built key components of Amazon's supply chain) to develop the core product from the grounds up (involves application of LLMs, deep learning, and optimization). If you have mid to senior level experience in software development, have built SaaS applications, understand ML-Engineering, and love building 0->1 products, we would love to talk to you. Please reach out to us at: Email is hidden.

Location negotiable.

Narrative I/O | Senior Backend & Frontend Engineer positions | New York, NY | Full-time | REMOTE (4-hour overlap with EST for backend, US & Canada for frontend) | $120k to $200k USD | https://narrative.io/

Narrative has been building a data collaboration platform designed for simplicity and ease of use since being founded in 2016.

Our primary strength is functioning as a data marketplace where we differentiate ourselves by automatically standardizing data, making platform data accessible through the Narrative Query Language (NQL), giving data providers the ability to define row-level access and pricing policies, and making it easy to deliver data to a variety of destinations using our "Connector Framework".

We operate two flavours of our platform: An AWS-based implementation that runs on our infrastructure, and a Snowflake-based version running inside the user's Snowflake account.

We are a small, remote-first team looking for great developers who want to jump in and take major systems and user-facing features from design to launch. While the company's headquarters are in NYC, the development team currently includes engineers working from the US (California and New York), Canada (Alberta, British Columbia, and Québec), Poland, and Serbia.

In brief, the technologies we use are:

- Backend: Scala, Spark, Apache Iceberg, Apache Calcite, Cats, Cats-Effect, Http4s, FS2, Doobie, Deequ, Axolotl, BentoML, and HuggingFace Transformers.

- Frontend: Typescript, VueJS, Nuxt, Vite, and Cloudflare Pages.

- Operations: AWS (ECR, ECS, EMR, RDS, S3, etc.), Datadog, Docker, Terraform, with some burgeoning use of EKS/Kubernetes.

Job postings and more on information about our team and culture are available at: https://jobs.narrative.io/

Apply by sending your resume to Email is hidden.

Jane Street | Hybrid | Full-time

If you haven't heard of us before, we’re a quantitative trading firm that cares a lot about technology. This means building elegant solutions that scale well, never assuming that “best in market” is the same as “best possible,” and ensuring everybody has the resources needed to do their jobs well.

We're looking for folks in New York, London, Hong Kong, and Singapore for a variety of roles including, but not limited to:

- Data Engineers who can help us understand, clean, manage and share the data that guides our trading. At Jane Street, having a thorough and accurate understanding of data is at the core of everything we do -- https://www.janestreet.com/join-jane-street/position/6558007...

- Machine Learning Engineers with robust experience in machine learning and strong mathematical foundations. Machine learning is a critical pillar of Jane Street's global business. Our ever-evolving trading environment serves as a unique, rapid-feedback platform for ML experimentation, allowing us to incorporate new ideas with relatively little friction -- https://www.janestreet.com/join-jane-street/position/8056588...

- A Machine Learning Educator who will be instrumental in maintaining and growing our ML educational programs and classes, spanning topics such as an introduction to general ML, efficient use of AI assistants, our internal stack for training models, and how to reason about performance -- https://www.janestreet.com/join-jane-street/position/7449077...

- Software Engineers who are intimately tied into every area of our business. We are big believers in functional programming, using OCaml, a statically-typed functional programming language, as our primary development language. We also believe in the value of open source software, using it in our daily work and releasing hundreds of thousands of lines of our own code as open source -- https://www.janestreet.com/join-jane-street/position/4274288...

- Frontend Software Engineers who are passionate about user-interface design and typed functional programming. You would take part in the design and implementation of our next-generation of browser-based tools for operating our trading infrastructure -- https://www.janestreet.com/join-jane-street/position/6184529...

- A Programmer-Who-Writes, or a Writer-Who-Codes -- https://www.janestreet.com/join-jane-street/position/7604415...

- Production Engineers who spend time both developing software and providing high-quality support for software systems that are critical to our trading business -- https://www.janestreet.com/join-jane-street/position/5108180...

Holepunch|https://holepunch.recruitee.com|Senior Node.js Engineer|Full-time|Remote

Job requirements

- Significant experience with Node.js;

- Experience with C/C++ and writing native bindings for Node is a plus but not required;

- A strong background in building and managing modular codebases and creating reusable npm modules;

- Robust Testing & Debugging experience;

- Passion for P2P Technology is a plus.

Why Holepunch?

This is more than just a job; it’s an opportunity to be at the forefront of the internet’s evolution.

If you are driven by innovation and eager to build decentralized solutions that challenge the status quo, join Holepunch. Together, we can create a more secure, inclusive, and P2P decentralized future.

Link11 | QA Engineer | Remote (EU time zone) | Full-time | https://www.link11.com

As one of our QA Engineers, you'll be the guardian of product excellence - thinking like a hacker, testing like a detective, and ensuring our complex systems work flawlessly in the wild. You'll go beyond finding bugs to anticipating the unexpected: edge cases, weird component interactions, and those "no user would ever do this... but what if?" scenarios that separate good products from great ones.

What You'll Own:

* Design battle-tested strategies that catch issues before customers do

* Build automated test suites that scale with our ambitions

* Hunt down bugs across complex component interactions and configurations

* Partner with dev teams to ship quality at speed

* Be the voice of risk assessment when it matters most

You Should Have:

* Critical thinking that connects dots others miss

* Deep web tech knowledge (HTTP/HTTPS, DNS, SSL/TLS, CDN)

* Automation chops (Python, JavaScript, Bash)

* Experience with test methodologies and writing bulletproof test cases

* Debugging skills that turn logs into insights

* Communication skills that turn complex issues into clear actions

Why Join?

You'll be testing cybersecurity products that defend critical infrastructure against DDoS attacks – a single bug could mean the difference between stopping an attack in <10 seconds or watching a bank, power grid, or hospital go offline. This isn't just QA – it's cyber defense at the highest level.

If breaking unbreakable systems and ensuring bulletproof security for critical infrastructure sounds like your kind of challenge, come lead, code, and conquer with us: https://www.link11.com/en/blog/jobs/qa-engineer-remote-first...

Odoo | Full Stack Developer | Hybrid (Belgium, 3 days/week) | Full-time | Visa + €10k Signing Bonus | https://www.odoo.com/r/mnk

Odoo builds open-source business apps used by millions. We're hiring full stack developers to work on our Python/PostgreSQL backend, fast JS framework, mobile apps, website builder, and more.

Why join us:

- €10k signing bonus - Visa sponsorship + relocation support (contains 1 month free housing) - No clients, no deadlines — just clean, open-source code - Pick your team after 3 weeks of onboarding - Great team, countryside office (with chef!), flexible hours

You:

- Master several programming languages - Proficiency in object-oriented programming - Strong in SQL, data structures, and DB design - Passionate, autonomous, and eager to build real stuff

Apply → https://www.odoo.com/r/mnk

PosterChild Inc ($2M pre-seed) | https://posterchild.ai/ | – Founding Full-Stack Engineer – Bay Area (Hybrid) | Build the core of an AI platform already used by 40+ nonprofits including UC Berkeley, SMASH, and the Kapor Foundation. Several partners have boosted their fundraising campaigns by hundreds of percent with PosterChild. As our one of first engineers you’ll work across Next.js/React + Python/FastAPI, integrate cutting-edge AI workflows, and make key architecture decisions with the founding team. Salary: $120–150K base + $10K bonus + 0.25–1% equity (performance grants available). JD: https://shorturl.at/dbtk4

StorPool | Senior Software Engineer - Storage Core (C/Linux) | Remote (UTC-1 to UTC+5) | Full-time

StorPool is building the future of data storage. Our software runs at the heart of modern clouds, delivering <100µs latency, 113M+ IOPS per cluster, and 99.999% availability. We're profitable, self-funded, and our customers love us (NPS off the charts).

We're looking for a Senior Software Engineer to join our Core Storage team. You'll tackle genuinely hard problems: writing custom Linux drivers, optimizing lock-free data structures at nanosecond scale, building fault-tolerant distributed algorithms, and debugging issues that go all the way down to kernel internals. This isn't CRUD work - it's systems programming at its most challenging.

Competitive salary, fully remote, meaningful time off, and a yearly education budget to keep learning.

If you get excited about shaving microseconds off I/O paths and building infrastructure that simply doesn't break, we should talk.

Apply here: https://storpool.com/force/senior-software-engineer-storage-...

Sheer Health (https://www.sheerhealth.com) | New York, NY | Full-Time | ONSITE | $150-210k + equity

If you or a loved one has ever suffered from confusing/egregious medical bills or insurance communications, this is your chance to give the power back to others in a similar situation.

Our mission is to demystify health insurance, healthcare and medical billing. By utilizing cutting-edge technology and advanced data analytics, we deliver personalized recommendations on how to save money, maximize use of plan benefits, stay on top of reimbursements and avoid erroneous or inflated medical bills.

Currently have open roles for mid-level and senior level engineers.

Drop us an email to hn ~at~ sheerhealth.com if these sound interesting!