Authorium | Full-Stack Engineer (Mid & Senior) | San Francisco, CA | ONSITE (Mon-Thu hybrid) | Full-time | $148k-230k + equity | https://authorium.com

We're building the operating system for the digital infrastructure of government. Authorium is a GovTech SaaS platform that unifies the messy, high-stakes workflows (procurement, grants, budgeting) that keep state and local governments running. We replace fragmented docs, spreadsheets and decades-old legacy systems with a unified data layer managing billions in public funds. Customers include California's CDSS, CalPERS, and EDD, plus major agencies in NY, Florida and Washington.

We're >40 people, growing 45% YoY, with a clear path to profitability in 2026. Real product-market fit, scale, and impact.

We're standing up our SF office as the war room for our hardest problems: modularizing our core domain, designing the next-gen workflow engine, building versioning and approval systems that hold up across dozens of customer configurations. You'd whiteboard, debug, and ship in person alongside a high-caliber team.

Stack: Ruby on Rails BE, Hotwire and Next.js FE, enterprise form and document capabilities. We're leveraging AI in our development process: Claude Code for specs, agentic testing, automated reviews.

Two roles open:

- Full-Stack Engineer (3+ yrs) | $148,750-$201,250 + equity | https://jobs.ashbyhq.com/Authorium/b59ff28c-3e3c-4190-abaa-a... - Senior Full-Stack Engineer (6+ yrs) | $170,000-$230,000 + equity | https://jobs.ashbyhq.com/Authorium/dc83e0dd-9279-4381-9930-f...

Both value deep fundamentals (system design, database optimization, clean architecture) over specific syntax. Bonus for Rails, document-heavy systems, or regulated-industry experience (GovTech, FinTech, HealthTech).

Benefits: 100% employee coverage, 401(k), flexible PTO, home office + commuter stipend.

Apply at the links above (mention Hacker News). I'm Jay, co-founder and xCIO of City of SF. Happy to connect directly if you have questions, just reply here or reach out jay@authorium.com

*Scribd | Lead Product Manager, AI Developer Platform | US, Canada | REMOTE*

Scribd, Inc. is on a mission to advance human understanding. Our four products — Scribd®, Slideshare®, Everand™, and Fable — help billions of people across the globe move beyond access and into insight, application, and expertise. We're a YC '06 company — one of the oldest still around — running one of the largest Ruby on Rails sites, serving 200M+ unique visitors a month with 2M+ paying subscribers.

I'm hiring a PM to own our *AI Developer Platform* — the internal product 200+ engineers build on every day. The platform spans the full agentic stack: the tools in each engineer's hands (Claude Code), a plugin marketplace and a library of skills that extend them, an internal app platform and agent runtime that teams build on, and the evals, canonical context, and conventions that make agents reliable across a polyglot codebase (Ruby, Go, TypeScript, Python; AWS/Databricks). You'll own the product strategy for developer experience and how we measure it, partnering directly with the Developer Platform and Data Platform engineering teams who build the underlying capabilities.

We're looking for a highly technical PM — quite possibly a former engineer — who is genuinely passionate about how developer platforms are evolving in the age of AI. You've shipped real products with modern agentic primitives (agents, evals, tool use, MCP, plugins/skills), and you can hold your own with engineers in technical discussions. This is the first PM seat at Scribd pointed inward, in a brand-new domain with no playbook to inherit. Reports to me (Director, Developer Platform).

Friendly, people-first, engineering-driven culture with competitive salary, great benefits, and real work-life balance.

Apply: https://jobs.ashbyhq.com/ScribdInc/ff2680ea-9a6d-436d-bdb0-3... — or email me directly at cktaylor at scribd.com (I've hired off these threads before). Recruiters/agencies, please don't.

RhythmScience | QA Engineer (Automation + Functional) | REMOTE (US, West Coast hours) | Full-time | $110k + equity

RhythmScience builds clinical-grade remote monitoring software for cardiac care. Used by cardiology practices and health systems across the US.

We're hiring a dedicated QA hire to own software quality hands-on:

- Build and maintain automated end-to-end tests (Playwright) and integrate them into CI/CD - Run functional and regression testing across web and mobile - Partner directly with product and engineering to develop test plans for new features. You'll be in the room early, not handed a spec at the end - Help shape release readiness and quality gates as we grow

What we're looking for:

- 3+ years in software QA, with real automation experience (Playwright or equivalent) - Comfortable writing test plans from product requirements and owning them through release - Pragmatic in a fast-moving startup. You build the process, not just follow it - US-based with solid West Coast (PT) overlap for working with product/eng - Healthcare/HIPAA or API/EHR-integration testing experience a plus (not required)

$110k base + meaningful early equity, full benefits, remote-first.

Apply: https://rhythmscience.breezy.hr/p/5d8744211917

Zūm | Senior/Staff Software Engineer | Hybrid/onsite (Redwood City, CA), Full-time

Zūm (ridezum.com) is reinventing K-12 student transportation in the U.S. — a $30B+ industry that moves 26 million kids every school day. Our Connected Mobility Experience (CMX) platform combines modern routing, real-time tracking, and an EV fleet to give school districts a smarter, more transparent alternative to legacy transportation providers. Backed by TPG, Sequoia, and SoftBank with $430M raised at a $1.7B valuation, Zum operates in major districts including San Francisco and Oakland Unified, where they deployed the first all-electric school bus fleet in the country.

We're hiring Senior and Staff-level product-oriented backend software engineers as well as a Senior Product Manager. These are hybrid/onsite roles with an expectation of working from our amazing Redwood City HQ 3x/week.

Senior Engineer, Backend Platform: https://jobs.lever.co/ridezum/d458798c-7ab9-4979-bd5c-f79178...

Staff Engineer, Backend Platform: https://jobs.lever.co/ridezum/d02682b6-9e55-43b7-aff3-457af4...

Senior Product Manager: https://jobs.lever.co/ridezum/1c28a668-6552-4b2e-ab6c-1e9be5...

Kadoa | Web Scraping / Software Engineer | Remote | Full-Time | https://kadoa.com

Kadoa is the web data layer for finance. We use the best coding agents to produce the most accurate web datasets, so the leading investment firms can make faster and better decisions.

All founders have spent years in the trenches writing web scraping and ETL code and still do it almost every single day. We’re making sure every team member can do the best work of their career at Kadoa.

We are growing fast, have a drama-free and distraction-light environment, and try to minimize the distance between the code & data you ship and the customers who use it.

We are looking for people who share our passion for software craftsmanship, web scraping, and AI.

Open roles:

- Web Scraping Engineer: https://www.kadoa.com/careers/web-scraping-engineer

- Senior Software Engineer: https://www.kadoa.com/careers/senior-software-engineer

If that sounds like you, please email me at (adrian at kadoa dot com) and mention HN in the subject line.

Skydio | Robotics / Drones / Cloud / Web engineers | San Mateo CA, Zurich CH, or Hybrid | https://www.skydio.com/careers

Skydio is the leading U.S. drone company and world leader in autonomous flight. Our drones are used for inspecting the energy grid, de-escalating life and death scenarios in public safety, inspecting bridges, giving soldiers better situational awareness on the battlefield, search and rescue missions, and more. We serve the core industries that our civilization runs on and have life-saving impact.

If you’re interested in being a core member of a 250+ person world-class engineering and research team that is defining the future of a major emerging industry,

We’re looking for a diverse combination of engineers, researchers, and managers with strong SW skills and experience across complex products. We’re particularly interested in people with robotics, web, deep learning, game dev, streaming or cloud experience.

I am a Senior Director of Engineering there and a YC S18 alumni, we're looking at all applications from the careers page. https://www.skydio.com/careers#job-listing

Blackshark AI | Software Engineers & Platform Engineers | Full-time | Austria or Remote EU | VISA sponsorship available

We build geospatial AI infrastructure. Our platform lets analysts train custom object and change detection models on satellite/aerial/drone imagery in minutes, then reconstructs 3D terrain from those detections. We just shipped a planetary-scale simulation platform with Lockheed Martin powered by Unreal Engine.

If you want to work on distributed systems that run in a data center one day and an edge laptop the next, we have interesting problems. Our training and inference infrastructure is processing trillions of pixels and we deliver real world impact for our customers across defense, intelligence, and local governments.

Tech Stack: Python, Fast API, PyTorch, PostgreSQL, Redis, Vue.js

Infrastructure Stack: Kubernetes & Docker, Linux, AWS & Azure, Azure DevOps, Terraform, ELK, Prometheus & Grafana, ArgoCD & Helm

Roles:

Senior Software Engineer - Data Plane Team: https://jobs.eu.lever.co/blackshark/17fbf310-ea37-435f-a198-...

Software Engineer - Data Plane Team: https://jobs.eu.lever.co/blackshark/6110fedd-5cd8-40e5-ac11-...

DevSecOps Engineer - Deployment Team: https://jobs.eu.lever.co/blackshark/d425eda5-52ca-4e5c-a03d-...

Platform Engineer - Deployment Team: https://jobs.eu.lever.co/blackshark/56a85834-d986-4105-9cc8-...

or reach out to HM with questions at: 'eivanov@' + username[:-2] + '.' + username[-2:].lower()

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 first 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.

We’re expanding our Stockholm team with exceptional builders in a wide range of roles.

More info at https://tandemhealth.ai/about/careers

Kanary | Full Stack Engineer | Remote (US) | Competitive Salary + Equity | Python / React

Kanary is a personal security platform that monitors the web to identify and reduce risk based on an individual's threat model. An executive has different exposure than a gamer, and our system classifies each person's risk across 55,000+ sources. We've been building since 2020, started in campaign security, data science, and government agencies, backed by Mozilla and Y Combinator. We have 200+ organizations on the platform and are fully funded by our customers.

Attackers have never had better tools. LLMs, social media, and search surface personal data in new ways. A few prompts can launch a deepfake and impersonation campaign. Risk sources appear and disappear across social platforms, telegram chats, and private data broker platforms. Kanary exists to play the cat and mouse game for people at the speed and scale of an agentic internet.

Kanary is a combination of software workflows (crawling, scraping, automation), AI (data classification, research, code generation), and people (analysts trained to support customers and escalate). This is dynamic system and requires an interest in adversarial programming.

We’re growing our team, and seeking a multifaceted engineer (2+ years experience). Our software stack is python, javascript, react, and for LLMs, we use Anthropic, OpenAI, and experiment with model fine tuning as needed. Experience with web scraping, data pipelines, or security tooling is required.

Must be authorized to work in the US. We’ll evaluate submissions for two weeks.

Email steven@kanary.com with something you've built and why it was hard.

Learn more here: https://www.kanary.com/join-the-team#senior-software-enginee...

Cora AI | Founding Full Stack / Applied AI Engineer | REMOTE (US ONLY, LA/SF preferred) | Full-time | $190–250k + early equity

We build customer success agents and account intelligence that do the actual manual work — so CS teams can focus on the relationship-driven work that drives growth.

You'll be one of the first engineers. You'll ship voice agents, multi-agent orchestration, RAG pipelines, evals, and account intelligence features that touch real customers on day one.

What we're looking for:

- You build with AI IDEs (Cursor, Claude Code) as a force multiplier — not occasionally, as your default

- You've shipped something with LLMs in production (agents, RAG, evals — not just wrappers)

- Comfortable owning a feature from idea to production without a lot of hand-holding

- Based in the US — SF Bay Area or LA strongly preferred

Why Cora:

- Work on cutting-edge applied AI: voice agents, knowledge graphs, multi-agent systems, evals, simulations, and more

- Real users, real impact, high autonomy

- Fast, fair interview loop — no BS

- Fully covered healthcare for you and your dependents

- 401(k) plan

- Flexible time off

Learn more: https://www.cora.ai/

Interested? Email careers [at] cora.ai — these go straight to me, and I read every one.

Kepler | Full Stack Engineer | New York, NY | ONSITE | $230K-$260K + equity We're building the trust layer for AI in high-stakes industries. https://kepler.ai

LLMs hallucinate, so they can't be the thing producing your numbers. In Kepler, the LLM orchestrates (decides what data to gather, what to compute, how to structure the output), but the model never touches the data itself. Every actual value flows through deterministic code pipelines with provenance metadata back to source. Verification loops cross-check outputs before users see them.

We started in finance because tolerance for wrong answers is zero. First product is a research platform for buy-side analysts: pull comparables, build models, research filings. Same architecture extends to chemicals, legal, healthcare. Models are commoditizing fast; the trust layer is what's missing.

If you want the deeper architecture writeup, Anthropic just published a case study on Kepler: https://claude.com/blog/how-kepler-built-verifiable-ai-for-f...

What you'd build:

- Source-explorer UI that traces any value back to its exact origin in the original document - Extraction pipeline for a data source we don't yet handle, with provenance and verification from day one - Agent orchestrator that handles partial failures so a bad extraction from one source doesn't block parallel work - Verification rules that cross-check values across multiple sources and surface conflicts with provenance on both sides

Stack: Rust backend (orchestration, extraction, computation), TypeScript/React frontend, PostgreSQL, AWS. Model-agnostic, currently Claude + GPT. We don't require Rust experience; we hire on fundamentals.

Looking for 5 years production experience, strong in TypeScript/React, comfortable in backend work. Bonus if you've built systems where correctness mattered (payments, data infra, healthcare, anything where a wrong output has consequences). Distributed systems basics: concurrency, fault tolerance, retries, idempotency.

Founding team is 40+ combined years at Palantir building Foundry's core systems (Ontology, Fusion, Workshop, FoundryML). CEO scaled a data company to $15M ARR, sold it, then ran Business Engineering at Citadel. Backed by founders of OpenAI, Meta AI Research, MotherDuck, dbt Labs.

In-office NYC.

Apply: https://jobs.ashbyhq.com/kepler-ai/52624a4e-33e3-4f16-8028-0..., or email me: eddie.hammond@kepler.ai

Hotwash | Founding Engineer (→ CTO for the right person) | REMOTE (US), Boston a plus | Full-time

I'm a solo founder. I built the entire product myself, got 11 fire departments paying with zero churn, and now I need someone to own engineering so I can't be the only one who does. West Point, Ranger Regiment, Yale Law, still the only developer.

What we do: Hotwash is an after-action review platform for fire departments. After a serious call, crews record what happened, we transcribe and structure it, and the hard-won lessons become searchable institutional memory instead of retiring when the veterans who earned them do. Fire is the wedge; the long game is operational learning for any high-reliability organization.

Traction: $40K ARR, 11 paying fire departments, zero churn. Raising a $1M pre-seed.

The role: Employee #1 on engineering. You own the codebase, architecture, and UX end to end, and you lead the rebuild off the current stack. You work directly with me on what gets built and why, including sitting with fire chiefs to figure out what they actually need. For the right person this becomes the CTO seat.

Who I'm looking for: A full-stack engineer who ships simple, usable products and has a real eye for design. Our users are fire crews, not power users, so the bar is "obvious to someone who's never seen it." If you care about how software feels, not just whether it works, this is your seat.

Stack: Today it's FlutterFlow + Firebase, Node, with Groq/AssemblyAI for transcription and Gemini for summarization. The rebuild target is React Native (Expo), Cloudflare Workers, D1, R2. You'd own that migration, so this is real greenfield ownership, not maintenance.

Comp: Founding equity, scaled to scope.

We're pre-raise, so cash is lean right now and grows when we close.

Email hiring@hotwash.com with a resume, link to something you've built, and one line on why this interests you.

Sheer Health (https://www.sheerhealth.com) | New York, NY | Full-Time | ONSITE

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 open roles:

- Strategy & Operations Manager (https://jobs.ashbyhq.com/sheerhealth/3354321f-78f4-414a-adbe...)

- Automation Engineer (https://jobs.ashbyhq.com/sheerhealth/ccd28cff-eac8-4970-beb4...)

- Backend Engineer (https://jobs.ashbyhq.com/sheerhealth/c3b52430-2060-4fac-bcab...)

- Infrastructure Engineer (https://jobs.ashbyhq.com/sheerhealth/fa3235eb-6503-4f5e-83f1...)

Smarkets (https://www.smarkets.com) | Full Time | Hybrid - Onsite (London, UK) Smarkets runs one of the world’s most sophisticated prediction markets, handling over £29 billion in volume since 2010 and engaging 200,000+ traders globally. We’re a technology company that happens to revolutionise betting - from sports to political markets, to delivering the sharpest prices and the fairest odds.

We are currently looking for:

Software Engineers - Backend, Python, Rust - https://smarkets.com/job/aaaf901f-77c0-4b35-9240-ed4cfa668ba...

Staff Engineer - https://smarkets.com/job/134306ca-60bb-478f-9b6c-4844009a908...

Engineering Team Lead/Manager - https://smarkets.com/job/59c8a1d1-25b6-4350-840c-9eb370d1433...

Senior Cloud Infrastructure Engineer - https://smarkets.com/job/7ee3a731-acc0-448f-bc61-64429e2ebf9

Senior Data Engineer - https://smarkets.com/job/1c6dd7d6-b742-43cf-aa42-772ff392108

Twindo (Formerly Canvas; The Spatial Computing Company) | Full-time | Remote

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.

Twindo brings together everything that professionals need to understand the spaces they design, build, and manage, without extra site visits or second-guessing. With a quick scan or plan upload, any space becomes structured, accurate, design-ready data your whole team can actually use.

Full Stack Engineer (Latin America Remote) Backend Engineer (Latin America Remote)

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

Keywords: 3D, computer vision, photogrammetry, geomatics, SLAM, CAD, iOS, Python, Django

Treasure AI | Staff Engineers (Fullstack/Backend) | HYBRID (Tokyo & Vancouver) | Full Time | https://www.treasure.ai/

You may know us from our open-source roots (Fluentd/Embulk.) We’re an enterprise CDP and agentic experience platform that unifies fragmented customer data from multiple sources and allows for complex marketing workflows. Our engineering team is distributed across Canada, Japan, and the USA.

We need three Staff Engineers (two in Tokyo, one in Vancouver) to act as technical anchors. You’ll be a great fit if you’re a backend/distributed systems engineer who can architect a clean React frontend, or a pure distributed systems specialist happy to collaborate across the full stack.

The roles primarily deal with architecting systems to process and personalize massive marketing datasets in near real time, with a strong emphasis on being able to work cross functionally to deliver best-in-class agentic interactions deeply integrated with our systems.

Our core stack is Rails, Typescript/Lambda, React, and Kotlin.

How to apply:

* Staff Fullstack (Tokyo) https://jobs.treasure.ai/jobs/542524-staff-fullstack-enginee...

* Staff Fullstack (Vancouver) https://jobs.treasure.ai/jobs/615459-staff-fullstack-enginee...

* More roles on our careers page (we are massively hiring): https://jobs.treasure.ai/

YOGIS: pay attention.

Visit https://mackley.co then email: parker@mackley.co

Namaste

MongoDB | Senior/Staff/Lead Site Reliability Engineers (SRE) and Infra SWE, Multiple Teams | REMOTE (US) or HYBRID (NYC, Dublin) | Full-Time

We are looking for experienced Site Reliability Engineers and Infrastructure Software Engineers to help build, scale, and secure the foundation of MongoDB Atlas, our globally distributed, multi-cloud database platform running across AWS, GCP, and Azure.

SRE at MongoDB is a builder role. We are heavily focused on making the platform more scalable, resilient, secure and self-service.

We have open roles (Senior, Staff, Lead) across several of our core Infrastructure teams:

- Infrastructure Security (InfraSec): Building infrastructure security controls and security observability tooling leveraging eBPF and Linux security mechanisms.

- Fabric: Building out service mesh, networking, and internal traffic routing.

- Storage Layer Services: Building our next-generation disaggregated storage architectures.

- Fleet Management & Deployments: Automating the lifecycle, deployments, and control planes of massive multi-cloud Kubernetes clusters.

- Atlas Infrastructure: Building core infrastructure operations on hundreds of thousands of Linux servers.

You could be a fit if:

- 5+ years of experience in SWE, SRE, or similar roles.

- Proficiency in at least one programming language: Golang, Rust, Python, C/C++ etc.

- Deep understanding of Linux internals, networking, distributed systems, and/or Kubernetes.

- Familiarity with at least one major cloud provider (AWS, GCP, or Azure).

- A builder's mentality: you think about failure modes, observability, and operability alongside correctness.

For any questions, or to apply directly (please mention HN) email: hani.benhabiles+hn@mongodb.com

Fastly | Software Engineers (Senior, Staff, Principal) | REMOTE (US, UK, EU) or ONSITE | Full-time

When you look at the headers of major websites, you’ll see us. If it has to be performant, secure, scaled worldwide, and always-on, it uses Fastly.

We're a globally edge cloud platform for performance and security, emphasizing open standards, sustainable engineering, and resilience-by-design.

We're hiring across compute, security, platform engineering, network and edge protocols, release engineering, network architecture, client services engineering, and more.

Rather than building walled gardens, we co-founded the Bytecode Alliance, heavily upstream our work to open standards, actively author IETF drafts, and power the global infrastructure for open-source Python, Rust, Ruby, OpenStreetMap, and much more.

The Stack: Rust, C/C++, Go, Javascript, Typescript, WebAssembly (Wasm/WASI), Wasmtime, Cranelift, eBPF/XDP, QUIC, HTTP, TLS, TCP, Varnish/VCL, Linux kernel internals, distributed systems, professional services.

Apply: https://www.fastly.com/about/careers

PlantingSpace | Full-time | Remote (EU time zone) + Quarterly Meet-ups | https://planting.space

We're building a system that represents domain knowledge as modular probabilistic models — making analysis rigorous and transparent. Users can connect these models flexibly into larger structures. The system enforces consistency across them, and propagates uncertainty through each step. Our first applications are in finance and scientific research, with use cases ranging from equity valuation and distress monitoring, to particle physics.

We’re building out our team in the following areas:

* Program Lead - Engineering

* Product Software Engineering

* Product Software Engineering (Quantitative Modeling)

* Applied Category Theory Research

* Bayesian Software Engineering

* Program Synthesis Engineering

We're also looking for Domain Experts to collaborate on high-value use cases -- identifying and validating opportunities, shaping them into working solutions with our engineers, and taking them from pilot to production with real users. Practitioners with expertise in Valuation Models, Quantitative Default-Probability Models, or Interest Rate Prediction Models are particularly relevant right now.

Find out more, and apply at: https://planting.space/joinus/