cognee - memory tool for AI apps and Agents | Remote and Berlin | Full time | 100k EUR
At cognee we are working on building graph/vector based memory on top of vector and graph stores. Our pipelines had 116k runs last month and we are projecting north of a million in a few months. We need help on the infra side.
Check our OSS tool here: https://github.com/topoteretes/cognee
Open Roles: Platform Engineer - https://apply.workable.com/topoteretes-ug-haftungsbeschrankt...
Category Labs | https://www.category.xyz/ | Remote and NYC | Full Time | $200K USD+
Category Labs (formerly known as Monad Labs) is a team of systems engineers and researchers on a mission to design and build at the frontier of decentralized technology. We strive to design and build step-function improvements over existing blockchain solutions. After recently raising $225M in series A funding, led by Paradigm, we are growing our team.
Senior SWE (Rust, C/C++): https://jobs.ashbyhq.com/category-labs/45f674b2-d904-482e-a5...
Senior Security Engineer (distributed systems): https://jobs.ashbyhq.com/category-labs/0a054dfb-a748-4935-9d...
Smart Contract Engineer (Solidity. Nice to have: Rust, C++): https://jobs.ashbyhq.com/category-labs/776ce314-aa12-471b-92...
Senior Researcher, Systems: https://jobs.ashbyhq.com/category-labs/015934c5-66e5-4042-94...
Composable | Boston, MA | On-Site | https://composable.ai
We're hiring experienced C#/.NET engineers to help us build out the core of our enterprise-grade, distributed DataOps platform.
Open Roles: - Senior Software Engineers (C#/.NET Framework): We're looking for engineers with deep experience in the Microsoft stack, including multi-threading, performance optimization, and scalable system design. Ideal candidates are comfortable working across the stack—from SQL Server and backend APIs to modern UIs.
We're a team based in Boston building a flexible and powerful platform for modern data operations. You'll be working on challenging engineering problems with a sharp, collaborative team. Opportunities are ideal for those that have an interest in designing and building large-scale, distributed, web-based platforms.
More info: https://composable.ai/careers/
Plotly | plotly.com | Senior Software Engineer, Platform | Canada | US| Remote, Full-Time
As a company with roots in the open-source community, Plotly introduced web-based data visualization to Python. Today, the company offers Dash Enterprise, which provides the best software tools and platform to enable every enterprise in the world to build and scale data applications quickly and easily.
We are growing our team and hiring for the following roles:
Senior Software Engineer, Platform (Remote: Canada or US) Senior Full Stack Software Engineer, AI Senior Customer Success Engineer, Infrastructure
If interested, apply here: https://job-boards.greenhouse.io/plotly
Canvas (The Spatial Computing Company) | Full-time | Remote
At Canvas, 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 some of the key parts of virtual reality as well.
Open Roles: -Full Stack Engineer (Django/React) - Remote Europe (full time) -Backend Engineer, Platform (Django) - Remote Europe (full time) -Full Stack SQA Engineer - Remote Europe/LatAm (full time)
For detailed information check out https://canvas.io/jobs.
Keywords: django, python, react, angular, vue, qa, automation
Sourcegraph | San Francisco | Full-Time | SWE, Design Engineer, Forward Deployed Eng, Head of Design, Solutions Eng, Dev Advocate (all roles write code) | https://sourcegraph.com
Sourcegraph is hiring SWEs and FDEs to transform how the world’s most important codebases are built and maintained. Our customers are the most important organizations in the world, including Stripe, Palantir, 4/6 top US banks, 7/10 top software companies, and many government agencies.
We’re building Amp [https://ampcode.com/], a brand new coding agent built for professional devs and teams. Amp is built with an obsession toward unleashing the capabilities of LLM for real-world coding. It uses the best models for each job, adopts the Unix philosophy for simplicity and composability, and aims for strong feedback loops within production codebases. Sourcegraph is backed by Sequoia, a16z, Craft Ventures, and Redpoint.
Apply here: https://grnh.se/0572f98b4us
Converge (YC S23) | Founding Product Engineer | NYC ONSITE | Full Time | 230k + 0.8%
We're a small team of 4, but scaled to $1M+ in ARR across ~200 customers and recently raised $5.6M from YC and the founders of Posthog, Algolia, Showpad, Shipbob, etc.
We're building the entire data stack of a marketeer in-house and deeply integrated. This offers them a 10x better product experience to understand where they're acquiring customers from.
Our infra processes ~4000 jobs/s and billions of $ in e-commerce transactions. We're building realtime data pipelines and complex data analysis tools -- lots of interesting challenges.
Have a look here for more info - runconverge.com/careers
ThreatMark | Security, Machine Learning | REMOTE(World) / Brno, Czech Republic | Equity
ThreatMark protects >50M end users from finacial fraud and saves > $100M every year in losses. We are working with top banks in EU and US to protect their end users.
We develop large-behavioral models that recognizes returning users by their mouse movements, keystroke timings and sensoric data (accelerometer, gyroscope). We detect cyberthreats (e.g. malware, phishing, scraping) by exploiting browsers/sandboxes of devices. We manage ~PB scale of data and provide realtime scoring in milliseconds driving authentication/authorization flow (2nd factor).
Stack: [python, typescript, rust], [redis, postgresql], [aws, terraform] ...
We are looking for exceptional engineers to build with us and be part of the success:
- Research Team Lead [hands-on role] (leading world-class ML engineers to success - focus, context translation, project management, measurement, ...)
- Engineering Team Lead [hands-on role] (structure, organize, help, elevate) - lead of team dealing with backend - low tail latencies, distributed systems, petascale
- Senior Data Engineer (datalake, ETL pipelines, MLOps...)
- DevSecOps Engineer (blue team - designing, implementing secure infrastructure)
- Product Manager (self driven, tech-enabled go-getter - expert on fraud and/or scaling a startup from product perspective)
- DevOps Engineer (IaaC in AWS)
We are also looking for other key roles:
- Chief Revenue Officer - be responsible for growth in US & EU
- Talent Hunter - looking for exceptional people (mostly engineering roles) - either people with experience (experts) or juniors with passion, drive and potential
If you are interested, please email us @ career@threatmark.com with subject "HN Who's Hiring" If you don't find the right role here or at https://www.threatmark.com/careers/, write us anyway if you believe you can be good fit :)
Krystof Hilar, Co-Founder & CTO
Big Picture AI Consultants is hiring Expert Software Developer Wanted: Tiny Team. Big Upside.
We’re building a working product: an AI voice agent for restaurants that answers phones and takes orders. The prototype is already in action—but it’s only working 96% of the time. We need someone to help bring it to 100%.
You’ll be joining a lean team with product vision, business execution, and marketing muscle already in place. We need someone who can build effectively and reliably.
We’ve already wasted time on 10+ “developers” who: • Can’t answer questions directly • Don’t communicate or follow up • Ghost when it’s time to deliver • Aren’t cooperative or team players
We’re done with that. If you’re not reliable, please move on.
What We’re Looking For: • A professional developer who wants to build something once and benefit long-term • Open-minded, direct communicator • Works within agreed timelines • Handles full-stack or backend infrastructure • Experience with voice AI a plus (not required)
Opportunity: • You can work part-time at first (estimated 200 hours for initial version) • Revenue expected within 60 days after platform completion • Targeting $10M+ potential within 3 years • We’re already using tools like OpenAI, LangChain, ElevenLabs, N8N, etc. • You focus on the build. We’ll handle the rest.
Interested?
Send us something you’ve built - tomodonnell013@gmail.com
Grafana Labs | Remote-first (and-only) | Senior / Staff Software Engineer | Full-time
I am looking for someone with a lot of experience with SaaS platforms at scale. We are turning Grafana into a proper observability app platform where OSS and proprietary apps can directly tap into dashboards, alerts, incidents, and telemetry and deliver even more integrated experiences.
To get there, we need to refactor a big part of Grafana so that it’s simpler and standardized. Grafana is used by countless OSS and Cloud users across different platforms, so planning and rolling out changes safely to avoid service disruptions is crucial; I am looking for someone who is excited about this sort of work.
For more details, look at the JD and at: https://github.com/grafana/grafana/blob/main/contribute/arch...
We are hiring only in: USA, Canada, Germany, UK, Spain, Sweden. Send a CV or GitHub at https://www.linkedin.com/in/artur-wierzbicki/ or apply via the Careers page:
- USA: https://job-boards.greenhouse.io/grafanalabs/jobs/5541738004 - Canada: https://job-boards.greenhouse.io/grafanalabs/jobs/5541741004 - UK: https://job-boards.greenhouse.io/grafanalabs/jobs/5525639004 - Spain: https://job-boards.greenhouse.io/grafanalabs/jobs/5525638004 - Sweden: https://job-boards.greenhouse.io/grafanalabs/jobs/5525640004 - Germany: https://job-boards.greenhouse.io/grafanalabs/jobs/5525641004
Roger Healthcare | ONSITE/Hybrid | San Francisco | Senior/Staff Backend Engineer | Full-time
We’re Roger Healthcare — building AI-powered clinical documentation for home-based care. Our product gives overworked clinicians their evenings and weekends back — and raises the standard of elder care across the country.
We’re backed by world-class investors and growing faster than any other company in our space. Our founding team includes AI researchers from Cornell and Amazon Alexa, and we’re constantly shipping new products powered by the latest advances in LLMs and real-time voice tech. We’ve been around for 2 years and are proudly post–product-market fit.
We’re hiring a Senior/Staff Backend Engineer to help us build critical infrastructure from the ground up.
Compensation: $170K – $230K + 0.15% – 0.3% equity https://www.rogerhealthcare.com/careers?ashby_jid=270e56ba-c...
What You'll Do
Build and own key infrastructure and APIs for real-time AI voice tools
Ship 0→1 features using FastAPI, MongoDB/Postgres, and Docker
Work directly with LLMs and AI models — including fine-tuned voice + vision tools
Operate in AWS (preferred), and help define scalable infra from the ground up
Leverage AI-assisted development tools to ship faster and smarter
Be a senior IC (not a manager), collaborating with world-class engineers and mentoring juniors
Email me at rayyan@rogerhealthcare.com
Or apply directly: https://www.rogerhealthcare.com/careers?ashby_jid=270e56ba-c...
Breezy | Product Engineer (Fullstack) | Remote (US) | Full-time | $175k–200k + Equity | https://www.getbreezyapp.com
Breezy is modern field service software for residential HVAC companies. We combine strong product design, close customer collaboration, and best-in-class technology (including LLMs, when they’re the right tool for the job) to help contractors run better businesses. We’re already replacing legacy systems like ServiceTitan and Housecall Pro.
We’re a small, senior team with a track record of scaling successful startups. We work fast, stay focused, and take pride in shipping high-quality software with a strong sense of ownership.
We’re hiring a senior Product Engineer to help build and shape the product. You’ll contribute across the stack (TypeScript, React, Node.js, PostgreSQL) and own features from concept to production. You’ll play a key role in a high-velocity environment where ideas quickly turn into shipped product.
We’re looking for someone with broad technical range, depth in a few areas, and strong product instincts. Someone who’s practical, self-directed, and cares about building things that actually have an impact on our customers' lives.
Tech Stack: TypeScript, React, Node.js, PostgreSQL Comp: $175–200k + equity, full health benefits, 401(k), remote-first with periodic team offsites To apply: Email jobs+july25@getbreezyapp.com with your resume and links to your work (Github, LinkedIn, Personal Site)
PermitFlow (YC W22) | Staff, Fullstack & Frontend Software Engineers | New York, NY | ONSITE | Full-time | https://permitflow.com
PermitFlow’s mission is to streamline and simplify construction permitting in the $1.6 trillion United States construction market. Our software reduces time to permit, supporting permitting end-to-end including permit research, application preparation, submission, and monitoring.
We’ve raised a $31m Series A led by Kleiner Perkins with participation from Initialized Capital, Y Combinator, Felicis Ventures, Altos Ventures, and the founders and executives from Zillow, PlanGrid, Thumbtack, Bluebeam, Uber, Procore, and more.
Permitting is a challenging yet interesting problem; thousands of municipalities across the United States have their own processes and requirements - many which are continually updating. Software, AI, and LLMs provide an exciting opportunity for us to reason at scale and distill a nuanced and localized permitting process into a standard and streamlined experience for our customers.
We're looking for customer-obsessed, ambitious, and hard-working teammates who are excited about solving a real-world problem with technology at its helm.
NYC Onsite Roles | apply at: https://jobs.ashbyhq.com/permitflow?departmentId=d33195eb-89...
1. Staff Software Engineer - $200K-275K + equity
2. Fullstack Software Engineer - $125-240K + equity
3. Senior Frontend Engineer - $125K-240K + equity
Akkio | US Fully Remote | Full-time | Senior Web, Backend, and Data Engineers
Akkio is building applications and agentic workflows for media agencies: audience building and distribution, measurement / campaign analysis, media planning, etc. Generative and traditional AI/ML. See https://www.akkio.com
* Senior web full-stack role; 150k-210k w/ equity. This is really a principal role just Akkio only has 2 job titles (currently). Looking for an experienced candidate who's run projects, guided architecture, lived through framework upgrades and large code refactors, and wants to build a great customer experience; Vue.js, Typescript, Node.js. https://www.akkio.com/jobs/senior-frontend-engineer
* Senior backend role; 150k-210k w/ equity. Looking for an experienced candidate who's interested in at least two of: statistics, code generation, LLM usage, traditional AI/ML, large data processing, and/or distributed systems development. https://www.akkio.com/jobs/senior-backend-engineer
* Senior data engineer role; 140k-180k w/ equity. Periodic travel to NYC is required; this role is to help Akkio engage new clients onto the platform, and media agencies value face time (at least at first). SQL is a must and python & dbt are bonuses. https://www.akkio.com/jobs/senior-data-engineer
All candidates must be authorized to work in the US
NexusGrid builds software to help energy generators stay compliant, secure, and audit-ready.
We're tackling the growing complexity of US energy regulations by automating data validation, documentation, and reporting — turning what's now a painful, manual process into a seamless, secure platform. With a power engineering talent shortage compounding the problem, operators desperately need automation. We're driven by $1.7T energy transition investment, where new regulatory requirements create natural competitive moats and mandatory adoption.
By leveraging AI to detect anomalies and flag compliance risks early, we help operators move from reactive to proactive, so they’re always ahead of the curve.
As a founding engineer, you’ll shape the technical core of our platform — from building secure cloud pipelines and encryption frameworks to architecting time-series data storage and intuitive compliance dashboards. You’ll work closely with our team (a CFA with a decade in capital markets and a PhD EE from the power sector) to solve problems that sit at the heart of energy reliability and grid stability.
Founding Data / Full Stack Engineer:
• Cloud infrastructure (AWS/GCP/Azure), VPC & secure data pipelines • IaC (Terraform / CloudFormation) • Encryption, IAM, audit logging • Handling batch + real-time ingestion (Kafka, NiFi, serverless) • Building the foundation for ML models that spot compliance gaps before they become audit findings
Meaningful equity, full product/technical ownership, remote friendly (US preferred). Contact us: jeanne@nexusgrid.ai
Play Health | Founding Designer/Design Engineer | Boulder, CO or Remote (US Only)
Play Health is redefining care for women in perimenopause through a precision platform that combines at-home hormone testing, real-time symptom tracking, and AI-powered insights. Our system translates complex biological and behavioral data into clear, personalized guidance - helping women understand what’s happening in their bodies and what actually works to feel better. As our user base grows, so does a uniquely structured, longitudinal dataset, creating a flywheel that powers better interventions today and unlocks discovery opportunities for women’s midlife health and longevity tomorrow.
We’re previously funded, experienced founders with deep expertise in biotech, clinical data, systems-level biology, and engineering - now looking for a founding designer: a world-class product designer or design engineer ready to own the entire product experience and help shape the future of women’s health.
Full Role Here - https://docs.google.com/document/d/1Vn0tZ0_FV1a-H-DZyec5RodR...
Interested? Contact us at andrea@pressplay.health and ian@pressplay.health
Moonchild | Software Engineer - AI-Native Startup | Remote (US only)
We're building the future of product design in this new AI world. We're early stage, fast-moving, and building something that matters with people who move at your pace. You're fast. Not "I'll get it done eventually" fast—actually fast. You ship features while others are still in planning meetings. You've probably built multiple projects that real people use, and you did it without a massive team or budget. You're also restless. The idea of maintaining legacy code at a Fortune 500 company makes you want to quit tech entirely. Top 1-5% LLM user (you're already building with AI)
Track record of shipping user-facing applications
Strong design intuition (your work doesn't look like developer art)
Excellent communication (you can explain complex things simply)
Ownership mentality and agency (you see problems and fix them)
Open to feedback and accountable for results
Proof you've worked on multiple projects
2+ years experience, authorized to work in the US You'll work across frontend development (React/TypeScript), backend services (Node.js), AI integration and development, and infrastructure (GCP). We're not looking for a specialist—we need someone who can move between these areas as needed. Growth: Steven has a track record of turning promising engineers into exceptional ones. Equity: We're early enough that your equity could be life-changing, growing fast enough that it won't take a decade to find out. Problems: You'll work on cutting-edge AI applications, not CRUD apps or marketing websites. Perfect for new grads who can demonstrate exceptional velocity and AI-native thinking, or experienced engineers who haven't been slowed down by corporate processes. Apply here and mention your fastest project ship time:[https://wellfound.com/jobs/3313464-software-engineer-ai-nati...]
Anduril Industries | Engineering Manager, SDET, Software Engineers (all levels) | Full-time | In-Office (Seattle, Boston, Costa Mesa)
We're growing the Maritime Application Team at Anduril. We combine core platform technology into mission-winning capabilities. We write the software that delivers a decisive operational edge for autonomous platforms like the Dive-XL, Dive-LD, Copperhead, and Seabed Sentry. Scaling the team, in-office, U.S. citizens eligible for a clearance. Lots of roles available.
https://www.youtube.com/watch?v=cgNCHZBJxsM
Software Engineers (all levels): https://job-boards.greenhouse.io/andurilindustries/jobs/4780...
Engineering Manager: https://job-boards.greenhouse.io/andurilindustries/jobs/4780...
Software Engineer in Test (SDET): https://job-boards.greenhouse.io/andurilindustries/jobs/4780...
Stealth AI Startup | Open Source Software Engineer | Full-time | Remote (Global)
We're building one of the most widely adopted open-source libraries for evaluating LLM applications - used by teams at Google, Amazon, and Databricks. As an early engineer, you’ll work on core features, improve developer experience, and help shape the future of LLM tooling.
We’re looking for engineers with a strong track record in open-source & Python, especially in AI libraries. If you enjoy working on impactful tools and collaborating with a global developer community, we’d love to hear from you.
Compensation: Upto $180k + equity
To apply: Email adarsh@lexoga.com with your GitHub and the open-source libraries you contribute to or maintain.
Henry Homes | Senior Full Stack Engineer | Full-time | Remote (US)
We help homeowners understand and manage the health of their homes. Think Prenuvo full-body scan, but for your home. Through our dashboard and AI chatbot, you gain instant access to your home's data, maintenance alerts, and expert guidance. We're exploring the biggest opportunities in this space as we work toward product-market fit. We're at seed stage backed by Forerunner Ventures & Precursor Ventures
What we need:
- Strong experience with Python/Rails, TypeScript, and React
- Someone who thrives in ambiguous, early-stage environments
- Comfortable owning features end-to-end and making architectural decisions
You are:
- An engineer who loves shipping and values velocity while balancing craft
- Generally curious/optimistic about AI and use it on a daily basis, and have opinions on how to build with it
- Huge bonus if you're excited about solving homeowner problems
- Comfortable with the uncertainty and opportunity of pre-PMF
Why join now?
We're early enough that it's very exciting - you'll work directly with founders and a 2 person NYC based product team consisting of a lead engineer and a lead PM. You'll be directly shaping the product.
What we offer: Competitive salary, meaningful equity, and the chance to build something homeowners desperately need.
Send us a message at jobs+hn@henryhomes.com if this sounds appealing to you!