Radar Labs | Software Engineers (SRE, ML, backend, full-stack, mobile, security, QA) | Remote (US), NYC | Full Time | https://radar.com

- 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

- Agents and MCP tools to visualize and debug location data at scale

- 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

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

Datamint | Rust Systems Engineer, Browser Security | Remote (Global) | Full-time | $120k–$170k + Equity | https://datamint.xyz

We build high-throughput crawling and structured data extraction infra designed for AI agents and LLM pipelines.

If you’ve built scrapers recently, you already know the state of the market:

- Traditional proxy providers (Bright Data, Oxylabs, Smartproxy, Proxybase) give you raw IPs or massive unparsed HTML blobs, leaving you to deal with DOM bloat, token waste, and brittle parsing pipelines.

- Modern tools like Firecrawl or Jina made clean Markdown extraction easy for hobby setups, but they often struggle when you throw heavy SPAs, high-concurrency jobs, or hardened anti-bot walls (Cloudflare Under-Attack / Turnstile, Kasada, DataDome) at them.

- Rolling your own Playwright / Puppeteer cluster works until target sites deploy new JA4/TLS fingerprints, and your data team ends up spending 30% of their sprints fixing broken crawlers instead of shipping product.

We're tackling this by combining a low-latency Rust fast-fetch engine (JA4/TLS and HTTP/2 frame emulation) with an isolated stealth browser fleet, zero-code schema validation (JSON Schema/Pydantic), and native Model Context Protocol (MCP) support.

Trade-offs / where we fit: If you just need to curl a few static Wikipedia pages, a 10-line Python script is better and cheaper. But if you need reliable, structured data out of bot-defended sites without babying headless browsers, that's what we do.

We're looking for:

1. Rust Systems Engineer: High-concurrency network I/O, Axum/Tokio, TLS/BoringSSL fingerprinting, proxy routing matrices, and low-latency data pipelines.

2. Browser Security Engineer: Deep familiarity with browser internals (Firefox/Chromium source), canvas/WebGL/audio fingerprint evasion, CDP/WebDriver stealth, and familarity with anti-bot defenses.

Our stack: Rust, Next.js 16/React 19, TypeScript, hardened Firefox/dwx_crawler, Linux/Xvfb, SQLite WAL/Postgres.

If interested, shoot an email to jobs@datamint.xyz (or founders@datamint.xyz) with your GitHub, a project you built or broke, and what you find interesting in this space. No formal cover letter needed.

CABLE | Software Engineer (early team) | Sydney, Australia (ON-SITE) | Full-time | https://jobs.cable.energy/roles/3e2cd174-71f5-80ae-a1d2-db8b...

We're Australia's battery-backed electricity company. We fund, install and operate batteries on-site at small businesses, then supply their power at a firm, flat rate 20–40% below incumbents, making the economics work by optimising those batteries against wholesale prices. We're live with real customers. Team of six, backed by Systemiq and Black Nova; engineering includes Casey, who previously led Google engineering in Paris and Google Maps in Sydney.

We're AI-native: engineers, energy specialists and go-to-market colleagues all ship with coding agents. Each engineer owns a product end to end, from the commercial problem through to production. Flat structure, lots of ownership.

Areas you could own:

* Customer experience: quoting, onboarding and the customer app

* Metering and billing: turning high-volume interval data into accurate bills

* Energy-market and battery data: the market, weather and telemetry pipelines behind our decisions

* The agent-driven development platform the whole team builds on

Stack: TypeScript, React, Postgres, serverless. Intro chat, system design, an agentic build, then a day with the team.

Apply at https://jobs.cable.energy/roles/3e2cd174-71f5-80ae-a1d2-db8b... or email theo@cable.energy.

All Gravy | Senior Software Engineer (Full-stack TypeScript) | Copenhagen or London | REMOTE (European time zones) or ONSITE | Full-time

All Gravy is one app for running frontline teams in hospitality and retail: scheduling, shift swaps, and an AI assistant that answers staff questions and handles routine tasks. Over 2,000 restaurants and stores use it, including Dishoom, Ottolenghi, Gail's, L'Osteria and 7-Eleven. We've grown 10x in two years.

You own features end to end, from the manager and employee interfaces where schedules are built and shifts get picked up, to the backend services and data layers behind them. We use AI tools heavily in our own work, and we would like you to help shape how the team uses them.

Stack: TypeScript everywhere. React, React Native, Node.js, NestJS, MongoDB.

Looking for: 5+ years of full-stack experience with React/React Native/TypeScript/Node, experience designing fault-tolerant distributed systems, and a startup or scale-up background. Bring concrete examples of how you build with AI tools today. NestJS and MongoDB are a plus.

Apply here: https://nordictechjobs.com/jobs/3MlSv0uALS

RINSE | REMOTE (US or Canada) or San Francisco, Los Angeles, Chicago, Boston, New York City, New Jersey, Seattle, Austin, Toronto, or Washington DC | Software Engineer | Full-Time | Salary: $80k-$200k USD | 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.

This season, we're particularly interested in new grads or junior engineers, to round out the team.

We're also looking for people with experience manipulating video data at scale, for computer vision applications. Similarly, we're interested in adding people with experience building and managing MCP services.

You will join a high-caliber team where collaboration, honesty, and open communication are at the core of everything we do.

Search term bingo: Logistics, Django, Python, Optimization, React, React Native, Postgres, Mobile Engineer, Automation, Delivery, OR-tools, Forecasting, Vision, Physical AI, MCP

Cardog | Toronto, Ontario | ONSITE, HYBRID, REMOTE (role-dependent) | Full-time | https://cardog.app/careers

Cardog turns raw vehicle data into facts you can check: VIN decode, market price, recalls, and what the car's own modules report. Insurers, dealers, manufacturers and the public bodies that register vehicles all use it. We're a small team and every engineer owns a whole area.

Data - Data Platform Engineer (Remote). Own the datasets: government files, manufacturer filings, dealer listings, signals from the vehicle. Decide which source wins when two disagree, and be able to prove it. SQL first, entity resolution, tens of millions of rows. Postgres, TypeScript, Workers, R2. - VIN Decode Engineer (Remote). Own decode accuracy. Read manufacturer filings line by line, write the patterns, and test them against millions of real VINs. For people who are obsessive about correctness. TypeScript, Postgres.

Design - Design Engineer (Remote). Own the component library and the screens built on it. Dense data, and making uncertain or missing values look uncertain. You design in the browser and you merge it yourself. React, Next.js, Tailwind. - Founding Engineer, Dealer Platform (Toronto / Remote). First engineer on software for dealer groups. Time in stores, then ship it the same week. Strong Postgres, multi-tenant.

Business - Account Executive (Toronto / Remote). Enterprise and public-sector sales cycles measured in quarters. Run technical first calls alone and pull your own numbers in SQL. - Policy & Standards Lead (Ontario). Represent us in the consultations and standards bodies writing the rules for vehicle data. Closer to counsel than comms.

Field - Hardware Engineer, Vehicle Interface (Toronto). Own the diagnostic-port device: board, firmware, enclosure, from bench to a unit on a dealer lot. C or Rust, CAN at the frame level, UDS/ISO-TP against real cars. - Forward Deployed Engineer (Ontario). Take named accounts from the first meeting to a running system. TypeScript, SQL, and some time under dashboards.

Apply on the page (each role takes applications in place) or write to careers@cardog.app.

Location: Boston, MA Remote: Yes (preferred) Willing to relocate: No Technologies: Python, TypeScript, Rust, SQL | pandas, polars, Arrow, DuckDB/DataFusion, Parquet, PostgreSQL | React, ag-grid, FastAPI, Django | MCP servers, LLM tool design, agent evals Email: paddy@paddymullen.com

I build data tools, from the dataframe backend to the browser.

I created and maintain Buckaroo (https://github.com/paddymul/buckaroo), an open source dataframe UI for Jupyter, marimo, and VSCode — summary stats and a histogram over every column, across pandas and polars. 683 stars. Scrolling millions of rows without eating the browser took a segment-merging row cache and parquet decoded client side.

Recently: Tallyman, a data science environment for coding agents. Named computations in a dependency DAG, results rendered live in a browser companion, every step keeping the prompt that made it. Demoed at PyData London 2026.

Before that: Flatfile, Attune, Tudor, and Bokeh/Wakari at Anaconda.

Looking for data infrastructure, developer tools, or agent tooling — where a hard backend problem has to surface as something a person can use.

MeritFirst | Senior Software Engineer | Austin, TX (ONSITE) | Full-time

MeritFirst helps companies hire on demonstrated ability instead of pedigree. Candidates take realistic work-sample assessments, and employers get a signal they can trust more than a resume. We are backed by 8VC and Slow Ventures.

The hard part is building a signal good enough to influence real hiring decisions: fair to candidates, predictive for employers, explainable, and hard to game.

What you'll build:

- The product candidates use to prove what they can do

- The product employers use to find and hire them, and the scoring behind it

- The engineering bar the next hires will inherit, and helping us hire them

Stack: TypeScript, React, Next.js, Postgres.

We want people who have built and run real production software, debug from evidence, and do not need a fully specified roadmap. Early engineers, technical founders, and senior ICs do well here.

We use AI to move faster and to understand code better, but we do not blindly ship what it writes. You are expected to know and own every line you commit.

Start with the assessment: https://www.meritfirst.us/candidate/tests/40bfae94-dbf6-43fd...

Paramark | Software Engineer (L4) | San Francisco HYBRID (3 days/wk) or REMOTE (US) | Full-time | $199K–$249K + equity

Paramark helps Marketing teams optimize spend across all of their channels and programs. There are proven scientific ways to do this, but they are poorly understood and practiced by only a tiny fraction of teams. Our product ingests data from all of our customers' marketing channels and uses it to train open-source ML models for both measurement and experimentation. This makes it possible for any marketer to use these methods.

In this domain, it's hard to figure out what to build, and it's even harder to be both accurate and simple. You'll be joining a small team -- we have four product engineers. That means owning systems end to end and having real influence over what gets built. Your typical project will start with a high level goal, and you will figure out the rest.

Founded 2023, ~16 people, $8M from Greylock, cash-flow positive. Reasonable working hours: when the Mercury News covered the return of 996 culture, we were the counterexample. "We don't think early stage startup life requires 18-hour days, or even 12-hour days." https://www.mercurynews.com/2025/08/25/silicon-valley-startu.... 4 weeks PTO plus federal holidays, medical/dental/vision (100% of employee premiums, 50% for family).

Looking for 8+ years, full-stack. Some exposure to statistics, experimentation, or A/B testing helps.

Stack: TypeScript, React, Python, Postgres. Google Cloud, Kubernetes, FastAPI, taskiq.

Process: intro call; technical phone screen; one-day onsite in SF (travel covered for remote candidates)

In-person: https://paramark.com/careers/software-engineer-l4

Remote: https://paramark.com/careers/software-engineer-l4-remote

I'm the CTO and I read every application myself. Happy to answer questions in this thread.

Discord | Senior Software Engineer, Application Security | REMOTE (US West Coast) or San Francisco, CA | $196K-$245K base + equity

Discord is where communities and friend groups spend time together, on desktop, mobile, and now more and more inside games and third-party apps built on our platform. That surface area, plus a huge, engaged, occasionally adversarial user base, makes application security a genuinely hard and interesting problem here.

We are hiring a Senior Software Engineer to join the Application Security team. This is hands-on product engineering: building security features that protect user accounts, strengthening authentication and session security, and improving security-critical services. You will work directly with product teams to ship user-facing account security tools and address emerging threats.

Stack: Python primarily, some TypeScript/React, some Rust, occasional JavaScript. Runs on GCP.

Looking for: hands-on AppSec experience (not just compliance-flavored security), comfort reading and writing code across languages, experience shipping production software, and sound judgment on prioritizing real risk over checklist security. Experience with authentication, passkeys, MFA, or session management is especially relevant.

Location: Remote from the US West Coast. If you are in the Bay Area, our SF office is an option. Relocation to the Bay Area is not required.

Interview process: recruiter call, coding round, HM interview, virtual onsite, decision.

Apply: https://discord.com/jobs/8656854002

Tether | AI Harness Engineer | REMOTE (Worldwide) | Full-time

We're looking for an AI Harness Engineer to build local AI systems combining agentic AI with P2P technology.

Looking for strong JavaScript/TypeScript experience and hands-on work with AI/LLMs, agent harnesses, local inference, and/or P2P/distributed systems. Open-source experience is a plus.

Apply: https://careers.tether.io/o/ai-harness-engineer-100-remote-w...

Solace Health | Multiple Engineering Roles | REMOTE (US) | Full-time | No visa sponsorship offered

We're hiring Typescript Engineers (full-stack, backend, and platform) on all our core groups.

We're Solace Health. In 4.5 years, we've provided free healthcare advocacy to over 200K patients on Medicare, and just begun opening access to everyone in the US. We exist to make sure nobody in the US has to navigate their healthcare journey alone. We hit Unicorn status after our February Series-C led by IVP, bringing us to $207M raised and a $1B valuation. Compensation and benefits are highly competitive and include equity.

Open Roles

- Senior Full Stack Engineer ($150k-$200k) - Senior Backend Engineer ($150k-$200k) - Staff Software Engineer ($200k-$225k, Fullstack or Backend lean) - Senior Platform Engineer ($150k-$175k) - Technical Lead ($200k-$230k, player/coach people managers)

Tech Stack Typescript with ReactJS and NodeJS plus NestJS, PostgreSQL, GCP, SQL, TypeORM, shadcn for our UI Library and GCP. K8s for platform.

APPLY HERE https://jobs.ashbyhq.com/Solace?utm_source=x4QJmBQEg7

If you want to build fast with high autonomy and believe in strong typing as much as we do, we'd love to hear from you!

Hedge (YC) | Founding Engineer | San Francisco | ONSITE | Full-time | $150K-$250K + 1-3% equity

Hedge is an AI-native insurance company. We started as a wholesale brokerage for specialty commercial insurance, where AI agents do most of the work of placing policies: reading messy submissions, chasing missing information, working with 100+ insurance markets, and moving accounts toward coverage. The agents are in production doing real work for paying customers.

We're hiring our founding engineer to own the platform end to end: agents, evals, data pipelines, integrations, and reliability. Python/FastAPI, TypeScript/React, Postgres. You should be deeply technical, resourceful, and have taken something from zero to one. No insurance experience needed.

In office in SF

Apply: https://www.hedgespecialty.com/careers?ashby_jid=b79fa956-bd...

City Detect | Full Stack Product Engineer (Design & Geospatial) | Tuscaloosa, AL | REMOTE (US) | Full-time | $110k–$159k + equity

City Detect uses AI and computer vision to map the physical world for cities. Sensors capture street-level conditions so local governments can find and respond to issues like blight and track how neighborhoods change over time. Founded in 2021, Series A, working with municipalities across Texas, California, Florida, and beyond.

We're looking for a frontend-leaning full stack engineer with a strong eye for design to own the map-heavy parts of our product. That means interactive maps, spatial data explorers and dashboards that city staff use to make decisions.

Stack: React/TypeScript, Python/FastAPI on AWS Lambda, Aurora PostgreSQL + PostGIS. Experience with Mapbox, deck.gl, Leaflet, D3, vector tiles/H3, or nation-scale OSM data is a big plus.

Mid to senior level. Small team, close work with the founders, real ownership.

Process: phone screen, portfolio/design review, 1–2 technical conversations, references, then a chat with our CEO. No LeetCode.

Perks: unlimited PTO, health/dental/vision, $100/mo wellness stipend, team retreats twice a year.

Apply: https://jobs.gem.com/citydetect/am9icG9zdDr5AWjF1AZ1UgSdc0I0... Questions: bjorn@citydetect.com

Relevant Healthcare | Lead Engineer | Remote (US/Canada only) | Full-time

Relevant builds a data platform that helps safety-net healthcare providers deliver better care using data from their electronic health records. Our customers are non-profit clinics called Community Health Centers. You can read more about them, us, and the role on our jobs page: https://relevant.healthcare/jobs/

We're a small team (~25 overall). We're bootstrapped (no external capital whatsoever, VC or otherwise) and profitable. We've got a modern tech stack (Rails, Typescript, Go, React, GraphQL, d3) and a healthy approach to both tech debt and work/life balance… and we’re also a very nice group of people that get to work on interesting problems for some of the few unimpeachably good actors in healthcare!

Starbridge | Senior Product Engineer | NYC or Remote | Full-time |

https://starbridge.ai/ Starbridge is building an AI platform that turns large-scale public and enterprise data into reliable sales insights. We are early, moving fast, and building from zero to one, so this role will have huge ownership and product impact.

Product Engineer: (React/Typescript) who would work closely with product and design to build user-facing parts of the platform. You will craft performant, stable frontends that explain technical concepts to non-technical users and help us iterate fast based on customer feedback.

We're looking to build our in-person team in NYC but also open to remote!

Apply: https://starbridge.ai/careers and mention HackerNews or email recruiting@starbridge.ai with your resume in pdf format.

Beacon AI | 3 days hybrid in San Carlos, CA | https://beaconai.co/careers

Due to U.S. export control regulations, we can only hire U.S. Persons (U.S. citizens, Green Card holders, lawful permanent residents, or individuals granted asylum or refugee status).

Beacon AI builds intelligent systems that make aviation safer and more autonomous. We’ve completed multiple DoD programs and are expanding our team with exceptional technical leaders to push the boundaries of human-machine collaboration in the cockpit. At Beacon, you will lead by example, mentoring and growing a small team of talented engineers (typically 1–2 to start) while staying hands-on in design and execution. You’ll help shape critical systems that advance aviation safety and autonomy, working alongside a team that values effort, creativity, and accountability.

We’re hiring Senior/Lead Engineers with 5+ YOE who love solving complex problems. At Beacon, you’ll own your work end-to-end, from prototype to deployment, and literally see your code take flight in real world aviation environments! Roles:

++ iOS Engineer [Tech Stack: Swift, SwiftUI, UIKit, Mapbox]

++ Senior Security Engineer [FedRAMP ATO/SSP or DoD IL4/IL5, AWS/GovCloud]

++ Infra/Backend Engineer [Tech Stack: AWS]

++ WebApp/FrontEnd Engineer [Tech Stack: Python, Typescript, React]

++ Lead Autonomy/Robotics Engineer [Tech Stack: C++, Python, iOT]

Fazeshift | Senior Software Engineer | San Francisco, CA | Onsite 5 days | Full-time | $200k–$235k + equity

I’m Chris, VP Engineering at Fazeshift. We build AI agents that do accounts-receivable work: billing, collections, payments, and cash application. We're nine engineers plus our Founder/CTO and me, and I'm hiring someone who can help us do more, better: increase both our production capacity and the quality and sophistication of the software we build.

We think AI changes what’s possible here. Instead of giving finance teams another dashboard to stare at, we’re building agents that actually do the work across billing, collections, payments, cash application, and the workflows connecting those systems.

The interesting engineering constraint: we’re intentionally not the system of record. We act across customers’ ERPs, banks, and billing systems. A situation where a timeout doesn’t necessarily mean a write failed, and retrying blindly can be the wrong answer.

A few of the questions we get to work on: * How do you let agents take real actions safely? Permissions, auditability, retries, idempotency, durable execution, and knowing when a human needs to stay in the loop. * How do you build a coherent product when you’re intentionally not the system of record? APIs are inconsistent, webhooks arrive late or twice, and a timeout doesn’t necessarily mean a write failed. * How should an engineering team work when coding agents can take on meaningful chunks of implementation, debugging, testing, and exploration?

We’re especially interested in engineers who have already changed how they work because of AI. If you delegate meaningful work to agents, keep independent tasks moving in parallel, debug where they get stuck, and shave the occasional yak to get things working properly, you’ll feel at home here. We’re still figuring this out too (and updating our priors regularly).

At the same time, generated code is still your code. We care about judgment, debugging, systems thinking, taste, and understanding what you’re shipping.

Our approach is roughly: design enough to find the shape of the problem, then build to learn. There’s a short distance here between noticing a problem, building the fix, and seeing the result.

We’re looking for 5+ years of professional experience, strong TypeScript/full-stack skills, and production ownership. No fintech background needed.

Stack: TypeScript/Next.js, tRPC, Prisma/MySQL/PlanetScale, Inngest, AWS.

I’m Chris, VP Engineering, and I read these applications myself. Email chris.zehner@fazeshift.com with HN in the subject, your LinkedIn/GitHub/résumé, and a few sentences about something you’ve built and how you knew it worked or how AI has changed your approach. No public code needed; please leave out confidential details.

Fastly | Software Engineers (Senior, Staff, Principal) | US, UK, EU, APAC ONSITE PREFERRED | 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 global 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.

Onsite preferred, but remote candidates with a strong fit are welcome!

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

Location: Dorset, UK

Remote: Yes (UK, US and EU time zones)

Willing to relocate: No

Technologies: Ruby on Rails, Python (FastAPI), TypeScript/Node, Go, PostgreSQL, AWS, Hotwire

Resume/CV: https://wagnermatos.co.uk

Email: wm@wagnermatos.co.uk

Senior engineer, over 15 years. I build complete products: one senior engineer accountable end to end, AI accelerated. Recent work includes a clinical alerting platform used by NHS trusts, an edge to cloud analytics platform for Johnson & Johnson Medical, and the cloud platform behind a fielded detection hardware fleet. Also open to contract engagements. Case studies and client testimonials on the site.