We’re an early-stage startup building a privacy-first AI routing layer for teams running multiple models across on-prem and hybrid environments.

The problem: AI workloads default to overpowered models and leak sensitive data because there’s no intelligent routing layer.

We’re looking for a founding engineer who enjoys systems-level problems, ambiguity, and owning architecture end-to-end. You’ll help design routing logic, policy enforcement, and developer-facing interfaces from the ground up.

Tech we’re working with / around: backend services, model orchestration, infra, performance, privacy boundaries (stack flexible at this stage).

Location: NYC preferred, open to strong remote (US) Stage: very early, YC-bound Comp: equity (range depends on stage and fit)

Email: Team@localroute.ai (include a few lines on what you’ve built and what excites you)

Featurebase is a modern customer support & product feedback platform powering thousands of teams, including Lovable, Raycast, and n8n. Fully bootstrapped, profitable, and growing fast.

We’re building a full customer-facing suite where teams can handle their customer support, feedback prioritization, and product updates - all in one place.

We’re looking for a full-stack product engineer to own and ship core product features end-to-end, with a direct impact on Featurebase’s future.

Stack: NextJS + Typescript for the frontend, Node.js for the backend, MongoDB, Redis.

If you like small teams, autonomy, and shipping meaningful product work, we’d love to have you on board!

Apply here (we read every submission): https://go.featurebase.app/careers

Aha! is the #1 tool for product managers to plan strategy and roadmaps. We serve more than 700,000 users worldwide. We are looking for:

* Experienced Rails security engineer to work on the Aha! product. Our application is built in Ruby on Rails, with React on the frontend for rich client-side experiences.

Aha! is profitable, you can work from anywhere in North or South America, and we offer excellent benefits. We use our own product to manage our work (which is especially rewarding) and we deploy continuously.

Our entire team has always been 100% remote - in North American timezones so we can collaborate during the work day.

We’re a startup building a document automation + workflow platform for the legal and financial sector: automated contract/act generation, data extraction, business rules, due diligence, reporting. Core is an AI-powered (LLM + OCR) workflow engine configurable via a visual editor. Cloud-first, with on-prem installs for some enterprise customers.

Role

- Work across the whole platform: UI → AI integrations → support for on-prem deployments. - Improve and maintain an existing production codebase (read/understand/refactor/ship incremental improvements).

Compensation is €30–40k RAL, depending on experience

Work mode is mostly onsite; flexibility depends on ongoing activities and team needs

Apply by emailing: app-navi8e at icloud.com (subject: “HN — Full-Stack Developer”)

We're building automation software for the $7T insurance industry, accelerated by AI. Seed stage in terms of headcount (~ 20 people) but Series B in terms of business traction (+ cash-flow positive). We've intentionally stayed under the radar.

- Product has caused customers to literally cry tears of joy

- Experienced eng team from Airbnb / Brex / LiveRamp

- Stack: TS, Postgres, React, GraphQL, and Next.js

Apply here: https://comulate.com/careers

Open Positions: https://jobs.ashbyhq.com/bliro

Highlights: - Founding Product Manager - iOS / Android Lead Developer - Founders Associate

Prompt Health is a fast-growing Healthcare SaaS company with over $100M in ARR, growing 100%+ YoY. We build software used by large healthcare organizations to operate more efficiently and deliver better patient care.

We ship hundreds of features and products each year with a small, highly collaborative engineering and product team. Engineers have real ownership, work closely with product and customers, and influence technical direction.

Roles

- Senior Full Stack Software Engineer: $200k-$225k Build and scale core B2B SaaS product features. Work across frontend, backend, APIs, and data. Collaborate closely with product and design. Tech: PHP (Laravel), Vue.js, MySQL, AWS. High-traffic B2B SaaS

- Senior DevOps Engineer: $200k-$225k Own cloud infrastructure, CI/CD, reliability, and observability. Improve deployment speed, system stability, and security. Tech: AWS, Kubernetes, Terraform, CI/CD, Datadog

- Support Engineer: $90k-$125k Debug complex production issues. Work closely with customers and engineering to identify root causes and improve the product. Tech:PHP/Python, SQL, REST APIs, AWS

- Senior AI Engineer (Natural Language Systems): $160k–$220k Build real-time AI systems for speech and language understanding. Own NLP and LLM pipelines with a focus on accuracy, latency, and cost. Partner with Product and Engineering to ship production AI features. Tech: Python, NLP, LLMs, Speech-to-Text, Docker, AWS

- Senior AI Engineer (Rapid Prototyping & Analytics): $160k–$220k Prototype and ship end-to-end AI systems across ML and LLM workflows. Own evaluation, monitoring, and guardrails for AI pipelines. Translate business workflows into practical AI solutions. Tech: Python, LLMs, ML, Evaluation, Docker, AWS

Competitive compensation, equity, and benefits. We are actively hiring and will respond to applicants!

Apply here: https://www.prompthealth.com/careers#list

Northstar is a seed-stage cybersecurity startup building an agentic platform to help security teams understand and defend the complex environments they're responsible for. Our semantic layer integrates data from the fragmented security and IT tools that teams have to deal with and allows for an AI-native approach to reasoning over a company's security posture.

We're looking for someone with hands on experience building modern AI systems who wants to join an early startup (<5 engineers) and everything that comes with it: working closely with design partners, solving hard technical problems, working in a fast-paced environment and figuring out how to apply agentic AI in practical, novel ways.

Contact me if you're interested - alex@northstar.security

Firetiger is building self-driving software operations. We believe the future of DevOps isn't better dashboards (like Datadog), but autonomous agents that monitor, investigate, and remediate issues based on high-level business goals. We are backed by Sequoia Capital and founded by Rustam and Achille, former leaders from Cloudflare and Segment.

We are looking for a Product Engineer to build the interfaces between humans and AI agents running software on behalf of those humans. More here: https://jobs.ashbyhq.com/firetiger/f5d4ba4b-29c8-4f77-bae8-8...

We build cool products, solve tough problems, and help grow companies.

We are looking for a Senior Electrical Engineer that is well-versed in Altium Designer. Must have several years of experience designing analog and digital circuitry. High speed and impedance controlled routing experience preferred.

Website: ringtaillabs.com Email me (Partner) at bailey@ringtaillabs.com. Please include resume/CV.