Rapport | Founding AI Engineer + Founding Data Engineer | REMOTE (US) | Full-time | USD$160-220K+

Rapport is fixing healthcare's broken payment infrastructure. Hospitals lose billions annually to opaque payer rules and outdated contracts. We're an AI driven platform that ingests contracts, claims, and policies at scale, transforming them into real-time pricing intelligence to help get providers paid what they deserve.

We are backed by top tier investors and already have one of the largest RCM operators in the country as our development partner. Founded by a healthcare tech veteran with two prior exits. This is a chance to be a true founding team member with meaningful equity and direct impact on product and company direction.

Role 1: Founding AI Engineer – Claims Pricing Intelligence Build production pricing engines that transform messy healthcare data into accurate claim prices. Think of it like playing a complex game: interpret intricate payer rules, combine them into working logic, and validate at scale. Design data pipelines for PDFs/CSVs/APIs, create business logic combining rules based systems with ML validation, and build explainable systems where every decision is traceable. Thanks to our partnership, you'll work with massive real world datasets from day one. Stack: Python, SQL, FastAPI, LLMs and Agentic frameworks.

Role 2: Founding Data Engineer Architect our data platform from scratch. Build fault tolerant pipelines using Databricks that handle diverse sources, design normalization layers for healthcare data, and implement observability for production reliability. First data hire, you'll shape our entire data strategy. Stack: Python, SQL, Databricks, Azure/AWS, Airflow/Prefect.

Rapport is a remote only company with quarterly in person sessions. Significant equity + competitive compensation.

Apply: hiring@healthyrapport.com with resume or LinkedIn.

Please note we are unfortunately unable to sponsor visas or hire candidates outside of the US at this time.

Culture Biosciences | https://www.culturebiosciences.com | Senior Software Developer (Bioprocess Automation) | Hybrid South San Francisco, CA | $180k–$210k + equity

We build cloud-connected bioreactor systems that let biotech companies design, run, and analyze upstream bioprocess experiments faster. You’ll own software that automates and controls bioreactors, instruments, and analyzers, working across the stack from embedded/edge control loops (pH, DO, temperature, agitation, feeding strategies) up to cloud-native data and workflow apps.

We’re looking for someone with ~8+ years combined experience in bioprocess/automation + software engineering, strong Python and Docker/IaC skills, and experience interfacing with physical systems. You’ll collaborate closely with scientists, process engineers, and hardware teams, and mentor other engineers on a small, multidisciplinary team.

More details & apply: https://www.culturebiosciences.com/careers?gh_jid=7358174003

Feel free to reach out to me if you have questions jonathan.meed @ company domain

Ezra | Principal Engineer (Full-Stack) | US REMOTE | Full-time

Ezra is a venture-backed startup building at the intersection of finance and artificial intelligence. We're building a platform to accelerate capital deployment into world-positive investments.

I'm Rob, the CTO, and we're looking for a technical leader and IC (12+ years exp) to own our backend architecture and implementation. You will be bridging traditional backend services with AI agents and inference systems, ensuring reliability at production scale. This is a high-autonomy role for someone who thrives in early-stage environments. You'll be working with other high performing engineers who will each own key components of our system.

The Role:

Drive architecture for Python-based backends (Django/FastAPI) and AI inference systems.

Build agentic AI workflows (retrieval strategies, eval sets) using OpenAI/Anthropic/LlamaIndex/Langchain.

Own features end-to-end, from system design to React/Next.js frontend implementation.

Stack: Python, Django/FastAPI, React, Next.js, AWS (RDS/Postgres, Terraform), Vector stores.

Contact: Email me directly at robert+hn25@ezra.fi with your resume, or apply here: https://www.ezra.fi/careers/principal-fullstack

Chainguard | Senior and Staff-level Product Managers and Engineers, and Engineering Managers | REMOTE (US)

We're building the safe, trusted source for open source. We created the secure Container Image market and we've recently expanded into VMs and Libraries for popular language ecosystems such as JavaScript, Python, and Java.

We're hiring quite a few PMs and engineers for our Containers and Libraries products, amongst other roles. Check out the listings here https://www.chainguard.dev/careers and if you're a highly-technical PM that wants to SHIP email me directly at patrick at chainguard dot dev.

Nova Credit | Remote (US, Canada)

We're building a unified platform for credit and financial data to power financial inclusion globally. Our mission is to unlock economic opportunities for consumers historically excluded from traditional credit systems by transforming diverse data into actionable risk insights. We are YC company backed by investors from Canapi Ventures, Kleiner Perkins, General Catalyst, and Index Ventures

-> Hiring software engineers from Mid-Level to Staff

-> Tech stack: Node.js, React, TypeScript, Python, PostgreSQL, AWS

You'll work on enterprise-grade APIs, data integrations, advanced analytics, and seamless user experiences. We're looking for engineers who thrive in fast-paced environments and want to make a meaningful impact on financial inclusion.

Apply at https://job-boards.greenhouse.io/novacredit and mention HN.

Perpay | Senior Full Stack/Backend Engineer + Engineering Manager | Onsite in Philadelphia, Full-Time

Perpay, a certified B-Corp, is the most meaningful growth-stage startup in Philadelphia. We’ve spent the past decade growing from an early idea to achieving strong product market fit, and becoming one of the fastest-growing fintechs in the country as we march toward half a billion in revenue. Today, more than 500,000 customers rely on Perpay, and we are driven by this mission that meaningfully improves the financial stability of everyday Americans. We’re in a special moment of building, scaling, and deepening our impact, and are eager to find teammates that want to join us on the journey.

Our venture partners include First Round Capital and L Catterton.

We're looking for:

- A few Senior Full-stack or Backend Engineers across our 3 product engineering teams. We highly value product-mindset, experience building production web apps for real users, and ability to coach and support more junior engineers.

- A technically hands-on Engineering Manager. Ideally, you have at least a year or two of experience leading people and being accountable for a team's execution, roadmap, and performance. You would be the fourth "line manager" on our team, and so there's ample opportunity to grab org-wide initiatives that are interesting and impactful.

Our stack includes AWS, Postgres, Python/Django, React/Redux/Typescript, Datadog

Some other company notes / benefits: NYC-level total cash comp, meaningful equity, open PTO policy, full health/dental/vision with solid buy-up option, remote weeks around major holidays, high quality catered lunch 3 days/wk, 4% 401k match, cell phone plan, gym subsidy, and some student loan repayment match.

Check out the full JDs here https://perpay.com/careers#open-roles , and feel free to reach out directly! karl at perpay dot com

Second Nature | Software Engineer, Engineering Manager, Director of Engineering | REMOTE (US) | Full-time

Second Nature (<https://secondnature.com>) is redefining professional property management with fully managed Resident Benefits Packages. We're a Resident Experience Platform helping 1,000+ property management companies automate resident onboarding, credit-building, renters insurance, utilities, and other resident services—creating "Triple Win" experiences for residents, property managers, and investors.

We're the only 5-time national NARPM vendor of the year!

Tech Stack: TypeScript, React, Next.js, NestJS, PostgreSQL, Kubernetes, Terraform, AWS, Python. CI/CD with GitHub Actions/CircleCI. Domain-driven design and event-driven architecture.

Culture: We move fast ("Pirate Ship, Not a Cruise Ship"), take extreme ownership, and focus on outcomes. Currently exploring AI integration across our workflows.

Benefits: 100% remote (US), medical/dental/vision, 401K, open PTO, equity.

Open Roles:

Director of Engineering ($200K-$230K) - Lead cross-functional engineering teams building world-class software at scale. Shape technical strategy and grow our engineering org. <https://www.secondnature.com/careers?ashby_jid=704ec05c-96ce...>

Engineering Manager ($180K-$200K) - Player/coach role: hands-on coding + people leadership. Lead 5-10 engineers, drive architecture decisions, ship production code. Experience with TypeScript, React/Next.js, NestJS, PostgreSQL. <https://www.secondnature.com/careers?ashby_jid=6ac49e4d-9541...>

Software Engineer - Full-stack roles across our platform. JavaScript/TypeScript, Python, SQL, CI/CD experience. <https://www.secondnature.com/careers?ashby_jid=cc1a9853-779e...>

Datadog | Software Engineers | ONSITE (Boston, Lisbon, Madrid, NYC, Paris, Tel Aviv) | Full-time

Datadog is a monitoring, tracing, logs system, and more, for your infrastructure and services. We build our own tsdb, event store [1][2], distributed tracing tools, cutting edge visualizations, and more. We love shipping great experiences for customers just like us and are growing fast! We write a lot of Go, Java, Python, Typescript (with React), and a bit of other languages. We run on k8s, and are multi-region and multi-cloud.

We're looking for people who can build systems at scale as we process trillions of events per day. Let us know if that's you!

https://dtdg.co/hnwhoshiring

[1] https://www.datadoghq.com/blog/engineering/introducing-husky

[2] https://www.datadoghq.com/blog/engineering/husky-deep-dive

Bonsai Robotics | Senior MLOps Engineer | Hybrid (Bay Area) | https://bonsairobotics.ai/

Bonsai Robotics | Senior Computer Vision Engineer | Hybrid (Bay Area) | https://bonsairobotics.ai/

Bonsai Robotics is building the world's most reliable and versatile outdoor autonomy stack, starting with deployments in agriculture.

We're hiring both in the MLOps side, building the pipelines that feed our models with data, and the ML/CV side, building the models themselves and the associated CV algorithms. We're especially interested in engineers who have experience building/training 3D birds-eye-view detection/segmentation models, and 3D reconstruction.

Stack: Python, PyTorch, Ray, Rust/C++ (on-vehicle) Salary: 150,000 - 250,000 USD per year

Apply: https://bonsairobotics.ai/careers/

Feel free to reach out to john.macdonald [at] bonsairobotics.ai with questions.

Bidaya AI | Senior Software Engineer (Full Stack) | Calgary, Canada | HYBRID | Full-time | Up to $140k CAD + Generous Equity

We're an early-stage (pre-seed) VC-backed startup automating RFP proposals for the AEC (Architecture, Engineering, Construction) industry.

We are building an agentic AI platform that embeds directly into Microsoft Word, helping firms find and win more work, while serving as their knowledge management hub for all business development.

You would be the first full-time engineering hire working directly with the founders (I'm the technical co-founder). We need someone who can ship production code across the whole stack.

The Stack: - Frontend: Next.js, React - Backend: FastAPI (Python), Temporal

Hard problems you will solve:

Deep Word Integration: Building a high-performance, "Cursor-like" experience within the constraints of Office.js.

Agentic Workflows: Orchestrating AI agents that can read complex government requirements, reason about compliance, and generate winning output autonomously.

Evolving Knowledge Graph: Architecting a library system that doesn't just store files, but learns from project history and feedback loops.

If you want a chance to work on a hard problem, in an exciting space, with a strong team that has validated the market and de-risked the business, with major upside, let's talk!

To apply, email me directly: majd [at] bidaya.ai or [here](https://app.dover.com/apply/bidaya/d5f29bbb-9c67-4c4e-82bf-5...) Mention HN in the subject.

Kernel Intelligence | Senior Backend Systems Engineer | Remote (US) | Python / FastAPI / Async / Distributed Systems

Kernel is building the data backbone for commercial real estate — converting messy CRE documents into structured, decision-ready data using ML and distributed systems. It’s a $20T+ market still trapped in PDFs and siloed tools, so the impact is immediate and real.

We’re an engineering-first company — our technical breakthroughs set the direction for what we can commercialize. Our team is small, senior, and high-trust. Every engineer owns production systems and directly shapes the platform’s capabilities.

You’ll design and own backend systems powering AI-driven pipelines: async FastAPI services, SQLAlchemy 2.x models, event-driven ingestion workflows (Pulsar/Kafka), multi-tenant auth (OIDC/JWT), Kubernetes deployments, and full observability.

Stack: Python 3.12+, FastAPI, AsyncIO, SQLAlchemy 2.x, Pulsar/Kafka, OIDC/JWT, Kubernetes, GitOps/Terraform, OpenTelemetry, Prometheus.

Comp: $150k–$200k + up to 3% equity

Apply → https://kernel-intelligence.breezy.hr/p/99e076eed192-backend...

Datalab | Research Engineer, Fullstack Engineer | NYC (onsite) | Full-time

Datalab trains open-weight, state-of-the-art models for document intelligence — Chandra, Surya, Marker — used across Tier-1 AI labs, Fortune 500s, and government agencies. 50,000+ GitHub stars. 7-figure ARR. ~7× growth in 2025.

We’re a small, senior team shipping fast: everything from novel OCR models to production-grade parsing infrastructure. Tons of ownership, direct customer impact, and the chance to push the frontier of document AI.

Hiring: • Research Engineer — https://pages.datalab.to/Research-Engineer-2a2b95e8757f805da... • Fullstack Engineer — https://pages.datalab.to/Fullstack-Software-Engineer-2b5b95e...

Stack: FastAPI (Python) for backend + frontend, HTMX/JS, Postgres, Redis, Render. Training & inference in Python/PyTorch.

Benefits: Early-exercise options, full health, 401(k), unlimited PTO (incl. holiday shutdown), choose-your-own device.

Interested? Email careers@datalab.to with your resume and GH profile!

EagleSight.ai | Forward Deployed Engineers (Fullstack & ML) | Las Vegas, NV | ONSITE | Full-time

EagleSight builds AI-powered vision agents for casino surveillance. We turn existing cameras into real-time detection systems that catch cheating and dealer errors as they happen. We're deployed in major Las Vegas casinos and growing.

We're hiring two Forward Deployed Engineers:

Fullstack – Own the product experience and on-prem deployments. You'll build and maintain our dashboard (React), backend services (Python/Node), and deploy full-stack systems on local GPU servers. 3+ years experience, strong with Python, TypeScript, Docker, Linux.

Machine Learning – Own our real-time vision pipelines end-to-end. Train, tune, and deploy deep learning models at client sites using PyTorch, ONNX, TensorRT. 2-3 years ML experience, comfortable with Linux, Docker, and shipping models as services.

These are field roles. You'll deploy and debug systems on-site at casinos and hotels. Startup mindset required – we're a small team moving fast.

Tech: Python, React, PyTorch, Docker, Linux, on-prem GPU infrastructure

Apply: https://eaglesight.ai/careers

Krea | Distributed Systems & Backend Engineers | San Francisco, CA (onsite+remote)

I'm the cofounder & CTO of Krea (https://www.krea.ai). We are a startup in San Francisco building browser-based AI creative tools for professional designers and creatives. Small team (~27); millions of active users; and raised +$80M from top SV investment firms.

We're looking for talented engineers who want to tackle hard technical challenges with smart people while building a creative platform that big companies and startups will rely on. You will...

- Build distributed systems to process massive (billions of files, petabytes), amounts of image, video, and 3D data, solving scaling bottlenecks as you go.

- Learn ML engineering from world-class researchers on a small tight-knit team. You’ll contribute to foundation image, video, and world models from 0 → production, and see them used by millions.

- Play with huge Kubernetes GPU clusters; our main GPU cluster takes up an entire datacenter from our provider.

Tech stack: python, pytorch, k8s, a rotating cast of data tools (e.g. DuckDB, massive relational DBs, PyArrow, etc.)

You should apply if you are an excellent generalist engineer with strong backend experience and an intuition for systems design. Bonus points for experience with dist. systems, k8s, and existing ML or data experience (but not required!). Cool side projects are a green flag.

A few links about us:

- Sneak peek of our real-time video model → https://x.com/krea_ai/status/1961074072487620635

- Technical report for FLUX.1 Krea, our first open-source text-to-image model → https://krea.ai/blog/flux-krea-open-source-release

You can contact me at:

  d+hn@krea.ai

(the +hn will bump your email in my inbox)

Tandem Health | Software Engineers | On-site in Stockholm, Sweden | Full time

At Tandem Health we're building a clinician copilot to allow clinicians to focus on care rather than administration. We’re building, launching and iterating quickly, and are already rolling out across some of the largest care chains across Europe, including most of the NHS.

Our core product listens in to the patient-clinician encounter to generate medical records, allowing clinicians to save 5-10 minutes per patient. No longer do clinicians have to catch up on administration after hours. Some even tell us that their partners notice they're much more relaxed after starting to use our product, and we couldn't be happier :)

We’re expanding our Stockholm team with exceptional engineers! We use Python (backend), TypeScript/React (frontend) and C# (Windows app) and our infrastructure runs on Kubernetes in Azure.

Even if we don’t have a role out your specific skill set, we’d love to talk! Our tech team is small but growing and you’ll have an outsized impact on an important problem.

More info at https://www.tandemhealth.ai/recruitment

Feel free to reach out to john.moberg@tandemhealth.ai if you have any questions!

ClickHouse | Senior Software Engineer - Distributed Systems / Cloud Data Infrastructure / Kubernetes | Remote

US remote preferred right now, EU is technically fine but I'm looking to ramp up in US atm

ClickHouse is a popular, Open-Source OLAP Database. We are ClickHouse Inc, the company behind the database aiming to build the best in class real time data warehouse.

What we are looking for:

Distributed Systems / Cloud Engineers to build the AutoScaling Systems for a Cloud Database.

We also maintain our own ClickHouse-based Data Infrastructure. Bonus points if you've worked on auto-scaling or other data-driven forecasting challenges in the past.

    Can work in an early stage startup environment. Proactive and hands on.

    You must be independent and self-organised.

    Good at Go, Kubernetes (Understanding how to manage stateful services in a multi-cloud environment)

    We have a Python service in our Recommendation pipeline, so some ML/Data Science knowledge would be good.

    SQL / ClickHouse SQL (goes without saying)

    You'll need to be able to do On-Call - debugging production infra or db issues

    If you can do low-level database programming (C++, ClickHouse) that's added bonus.

If you want to work on operating production critical databases in the cloud on k8s + write data-driven algorithms for autoscaling, consider applying!

Send me an email: manish.gill [at] clickhouse [dot] com

[0] https://www.youtube.com/watch?v=AFoMsLMZKik

[1] https://www.youtube.com/watch?v=ufY_JFPpzRI

PS: If you're a pure DevOps person or a pure Data Engineer who wrangles data tools, please read the above requirements carefully before firing off an email. This role is an intersection of a lot of sub-roles, not a particular specialization.

Conduit | Software Engineer (Product) | Hybrid (San Francisco) | https://helloconduit.com

Conduit is revolutionizing warehouse operations with our modern yard and dock management system. By building a frictionless pickup and delivery experience for warehouses, we empower logistics teams to operate with unparalleled efficiency and visibility. In a sea of point solutions, we differentiate ourselves by offering a modular all-in-one platform that combines workflows to deliver 10x the value to customers. Our mission is to be the “Air Traffic Control” for warehouses, ensuring efficient, fast, and safe operations. We just raised our $6M Seed, have zero churn, hit 172% NRR this year, and are focused on scaling in upper mid-market and enterprise.

As a product-minded software engineer, you'll play a critical role in helping grow the company. While your core job is to build great products, you’ll occasionally step outside of product to support go-to-market efforts or customer success — a great opportunity to learn how this massive, critical industry works. We currently have three engineers on staff and are looking for a fourth.

Tech Stack: Python, Django, PostgresQL, GraphQL, TypeScript, Svelte

Apply here: https://app.dover.com/apply/conduit/57ed27f3-d8ca-4344-a17a-...

Artificial Analysis | https://artificialanalysis.ai | Full Stack Engineer, ML Engineer, Member of Technical Staff | Onsite in San Francisco or in Australia/New Zealand | Competitive Salary + Equity

Artificial Analysis is an independent AI benchmarking and insights provider. We benchmark AI to help engineers and companies understand AI and make informed decisions regarding which AI technologies to use. We are fast growing with a team of 20 and have backing from investors including Nat Friedman, Daniel Gross & Andrew Ng.

We are hiring for four roles:

1. Full Stack Engineer: Full Stack Engineer to support our benchmarking of AI and with communicating these benchmarks to our users. Proficiency in Typescript & Python required. Familiarity with LLM APIs preferred. Tech stack: Javascript/Typescript, Node.js, React/Next.js, Python.

2. ML Engineer: ML Engineer to support our benchmarking and evaluation of AI software stack. You will design and run benchmarks and evaluations of different AI models. Strong analytical skills and proficiency in Python required.

3. Member of Technical Staff: You will design evaluations of different AI models and work to translate technical insights to analysis that helps companies navigate AI.

Apply at hiring (-at-) artificialanalysis.ai with your resume, github and dot points on relevant experience (including anything you've built). Add | HackerNews to email subject line.

Stargazr | Lead Integration Engineer (Path to Architect) | Fully remote | https://stargazr.ai

We are a small startup (<10 employees, 3 developers, recently post-revenue) in the analytics and simulation space. We sit on top of ERPs and production systems to provide financial and operational analysis for project-based manufacturing (aircraft, robotics, automotive).

Our stack is Python (Flask and Pandas), Vue 3, PostgreSQL and Clickhouse. Our infra is simple self-contained EC2 machines. We operate with high ownership, letting you impact both technical and strategic decisions.

We are looking for a senior engineer (5-10+ years) to own our integration process. You must have hands-on experience building data ingestion pipelines and ideally a background in technical pre-sales. You will start by shipping these integrations and evolve into a Solutions Architect role as the system and team mature.

To apply, please send your CV and a short background to hn-202512@stargazr.ai

RINSE | REMOTE or San Francisco, Los Angeles, Chicago, Boston, New York, New Jersey, Seattle, Austin, Dallas, Toronto, or Washington DC | Software Engineer | Full-Time | https://www.rinse.com

Rinse provides dry cleaning and laundry delivery services to customers in twelve metropolitan areas in the US and Canada. We have sophisticated logistics optimization software, a polished consumer product, and firm business fundamentals. We're now over a decade old - this is a stable, yet consistently growing and innovating, company.

Our engineering team is distributed across the United States and internationally, and has been entirely remote for years now, but a desk can be provided in the above cities if you'd prefer.

We're open to both newly-graduated engineers or more senior engineers, provided they meet our bar. We're particularly interested in true full-stack engineers, with strong React / Typescript / CSS skills to complement comfort in a Python / Django environment. We're also seeking engineers with experience leveraging AI to automate complex operational processes.

Search term bingo: Logistics, Django, Python, Optimization, React, React Native, Postgres, Mobile Engineer, Automation, Delivery

https://www.rinse.com/careers/software-engineer/