- Radar is the geo-location dev tool

- Doing 1B+ API calls per day

- Our main languages are Rust and TypeScript, we also use mobile and offline pipeline languages (Python, Scala, and Terraform).

- We're based in NYC with our HQ in Union Square and remote friendly (US)

Interesting things we're working on:

- HorizonDB, our Geospatial database written in Rust

- Precise indoor location more accurate than iOS and Android leveraging Ultra-Wideband, other mobile sensors and ML.

- Anomaly detection to identify spoofed locations

- Mobile infrastructure that automatically configures itself optimizing battery-life and location accuracy for different use-cases over time

- Multi-Region AWS K8s deployment, 99.99%+ availability

- Frontend tools to visualize and debug location data at scale

Check out our jobs page here: https://radar.com/jobs#jobs If you have any questions, feel free to reply here or you can e-mail me at tim@radar.com

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

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

Speckle is the open-source platform that makes 3D/AEC design data accessible, trustworthy, and queryable across every tool in the stack - Revit, Rhino, IFC, ACC and more. We've just launched Speckle Intelligence: ask your project models anything, trust the answer, and generate client-ready deliverables in minutes. 23 people, open-source core, enterprise tier on top, post-Series A. Repo: github.com/specklesystems

We're hiring our first Head of Delivery to own the enterprise post-sale motion: turning pilots with general contractors, owners, and large service providers into expanded production deployments. Forward-deployed role (think Palantir FDE, not SaaS customer success) - you sit inside the customer's real decision problem, make "trust the answer, take the action" true on their actual data, and feed what you learn back into product. We measure impact and not closed ticket counts.

Good fit if you've delivered technical/data products into heavy industry (AEC, construction tech, infra, or similar) and can read an enterprise's problem without a spec. AEC background a strong plus, not required. Comfortable with messy data and ambiguous orgs.

Apply: d@speckle.systems

We’re a global media network, digital consultancy, and product studio helping companies grow through technology and distribution at scale.

Now hiring:

Brand Strategy Director (Leadership Role, Remote, Worldwide) https://wetheflywheel.com/en/careers/brand-strategy-director...

AI-Native Tech & Growth Director (Leadership Role, Remote, Worldwide) https://wetheflywheel.com/en/careers/tech-growth-director/

Brand Visibility Lead (Remote, Worldwide) https://wetheflywheel.com/en/careers/brand-visibility-lead/

Entry-Level Growth Marketer — Next-Gen & AI (Hybrid Role, Ho Chi Minh City-based) https://wetheflywheel.com/en/careers/growth-marketer-saigon/

Pango is building the world's first Agentic Operating System for e-commerce logistics. Our vision is to create the AI e-commerce employee of the future. We are forming our core team in Stockholm and are looking for exceptional engineers. We are backed by some of the most some of the most prominent investors in the world. In less than a year, we have seen massive growth where we can't keep up with the demand and need engineers to bring the product faster to the market.

You are a good fit if:

* You are comfortable maintaining, expanding and operating an entire B2B SaaS platform with a high sense of ownership.

* You have previous experience working at a SaaS product company as a founding or senior engineer

* You are unafraid of any technology, and are willing to go out of the comfort zone to use the best tool for the job

* You have strong proficiency in any backend language or platform with a strong willingness to dive deep into PHP/Laravel OR strong proficiency in JS/React.

* E-commerce (Shopify, Magento, other platforms, shipping carrier integrations) experience is a plus.

You will take a key role in shaping the product and company, with ability to make an impact and advance career limited only by your aptitude and interest.

Reach out to Steve@pango.ai if you are interested or have any questions. We review applications immediately and move quickly.

I'm Robert, cofounder of Riot IQ. We're building RIOT IQ, a professional online IQ testing and cognitive assessment platform for psychologists, researchers, clinicians, employers, institutions, and curious individuals.

We're US based and 100% remote. We are hiring software engineers, full stack engineers, product designers, design engineers, and AI native fresh grads.

The most interesting project is building an AI based human intelligence predictor using our in house assessment data. That means working with response patterns, timing data, item performance, scoring, validation, dashboards, model evaluation, privacy, and product UX.

You might work on a variety of things as well but all related to predicting human intelligence.

What matters most to us:

1. Strong product sense 2. Clear communication 3. High ownership 4. Taste in software, design, and user experience 5. Fast learning 6. Interest in AI, cognitive science, psychometrics, or research tools

Useful experience includes TypeScript, React, Next.js, Node, Postgres, Python, data pipelines, ML workflows, dashboards, edtech, healthcare, or research tools.

Compensation is $90k to $180k depending on role and experience, with equity for the right long term hires. Visa sponsorship is not available right now.

To apply, email robertneir@riotiq.com with your resume or LinkedIn, GitHub or portfolio, and a short note on what you would want to build at Riot IQ.

LinkedIn: https://www.linkedin.com/in/robertmneir

We are actively hiring and will reply to applicants.

Join is SaaS for the construction industry — we bring contractors, owners, and design teams onto one platform to coordinate high-value projects.

You'll work across our flagship collaboration app: shaping frontend architecture and UI quality, influencing engineering-wide standards, and shipping with urgency while weighing long-term tradeoffs. We're hiring across profiles — frontend-heavy, fullstack, and backend-heavy — and want someone T-shaped across React/Go/Postgres with deep expertise in at least one.

Stack: React/TypeScript (Vite, RTL, Cypress), Go, Postgres, AWS, Terraform.

You: senior/staff-level experience; strong in at least one of React, Go, or Postgres; a clear communicator who mentors and reviews well.

Apply: email jon@join.build with your resume, whether you lean frontend or backend, and — if you can — a PR review you've given that had a positive impact. Mention HN.

Hi HN -

Several of our critical founding hires came through this forum, and we currently have 3 open roles!

Olli Health

Built by home health experts and seasoned product managers and engineers from Amazon, Google, Cohere Health, and Arrive Health, Olli Health streamlines ICD-10 coding and in-home documentation with industry-leading speed and accuracy, freeing nurses to focus on patients while helping agencies maximize revenue, reduce compliance risk, and scale efficiently.

We’re backed by top healthtech and AI-focused VCs (Cannage Capital, Arkitekt Ventures, and Tau Ventures) and Olli Health was recently profiled in Home Health Care News (https://homehealthcarenews.com/2025/11/home-health-ai-platfo..., Post-Acute Care's leading publication).

We are motivated by the opportunity for impact, and driven to ensure that our parents, friends, (and ourselves!) will continue to have access to quality healthcare in the home.

Roles

Senior AI Engineer | $180k-220k: Own end-to-end LLM product surfaces in a clinical/HIPAA environment, running rigorous evals and experiments across prompts, retrieval, and agents while shipping fast with strong Python chops and NLP fundamentals.

Senior Software Engineer, Scribe & Integrations | $160k-190k: Ship production React Native apps with strong TypeScript/PostgreSQL chops to own the full stack end-to-end, wrangling messy EHR data integrations and turning fuzzy clinical workflows into fast-shipped, observable features.

Senior Software Engineer, Platform | $160k-190k: Stack - Python (FastAPI/Django/Flask), React, PostgreSQL, and AWS to own platform architecture and IC delivery on a small team while mentoring engineers and setting the quality bar across a fast-moving healthcare codebase.

Requirements for all roles: 5+ YoE | Startup experience | Auth to work in US

See our website for details on each: https://www.ollihomehealth.ai/careers

Sumble is the newco from the founders of Kaggle. We are hiring full stack engineers, ai/ml engineers and growth/marketing. Can view our roles and apply here: https://sumble-inc.workable.com/

We are building a knowledge graph from web data with a first focus on data for go-to-market teams.

We use web data to identify things like org structure, tech stack, and key projects (e.g., GenAI initiatives, cloud migrations). Our product already has strong product-market fit, early revenue, and happy customers — and now we’re ready to accelerate.

Our long-term vision is to become the world's best data vendor. Try the product at sumble.com.

We are a team of 25 with experience at companies such as Google, Meta, Stack Overflow, Rippling, Snowflake, Confluent and Kaggle.

We raised $38.5MM from Coatue, Canaan, Square Peg Capital https://techcrunch.com/2025/10/22/sumble-emerges-from-stealt...