SkySafe (https://skysafe.io) | Wireless Engineer (SDR) | San Diego, CA | REMOTE or HYBRID

At SkySafe we build drone detection and tracking at scale.

I am looking for a Wireless Communications Engineer with SDR expertise to join my team; I'm the hiring manager.

What I'm looking for:

* Background in wireless communications / signal processing theory and math.

* Experience building software-based wireless modems.

* Experience writing and optimizing software-defined radio code in C++ directly.

What you'd do:

* Implement all components of software defined modem systems from specifications and alongside our reverse engineering team (no RE experience necessary!)

* Optimize existing software defined modem systems from both a theory and practice perspective - that is, make both conceptual improvements to algorithmic approaches as well as practical improvements to implemented code.

* Architect and implement high-level improvements to SDR systems (scheduling, compute offload, etc.).

We have a strong system in place for remote SDR work and are open to remote candidates for this role. If you're in San Diego and want access to an office with nice equipment, that's even better. This position requires access to technology which is controlled by US Export laws, so you also need to be an eligible US Person.

What we have to offer: $145-200k. Fun, small team dynamic. Work with experts in adjacent fields. Startup environment with good work-life balance and limited red tape. Rapid iteration and feedback in the wild - make a change, deploy it, and see telemetry come back in the same day. Good equipment at the office.

Apply: brian@ for a direct line, https://jobs.lever.co/skysafe for the formal route (we have some other roles I'm not the HM for listed there, too, if you're interested in the company!)

Borrowell | Development Roles | Remote across Canada with office in Toronto | Full Time, Permanent, Benefits from Day 1

Borrowell pioneered free credit scores for all Canadians in 2017 and now we’re focusing on building net new products that will be the first of their kind in Canada. With more than 3 million members, Borrowell is one of the largest fintech companies in Canada. Our team is diverse, inclusive, and driven by a shared passion for making a meaningful difference in the lives of Canadians. We pride ourselves on fostering a culture of collaboration, humility, and innovation. If you’re looking to join a company that’s transforming the financial landscape and empowering Canadians to achieve their financial aspirations, we invite you to explore career opportunities at Borrowell. Together, we can help Canadians feel confident about money.

https://borrowell.com/careers

Atomic Machines is building a manufacturing platform for a new class of micromachines, here in the Bay Area. We have open roles in SW/EE/ME.

My team is hiring for this role, ONSITE in Emeryville, CA: https://job-boards.greenhouse.io/atomicmachines/jobs/4113507...

Instinct Science | Senior Full-Stack Engineer (Elixir + React) | REMOTE (US) | Full-Time

Instinct Science is the AI leader in veterinary medicine. We build the platform that powers animal hospitals — a cloud-native EMR with real-time clinical decision support, applied AI, and the tools that help veterinary teams practice at their best. Thousands of users in clinics across the globe rely on what we ship every day.

We're at an inflection point: proven product-market fit, scaling fast, and greenfield work ahead that will serve tens of thousands of users. Engineers here own problems end-to-end — from talking to veterinarians about their biggest frustrations, to shipping production code, to iterating based on real feedback.

STACK: Elixir, React, TypeScript, PostgreSQL, AWS

https://instinctscience.applytojob.com/apply/1H156iuuzg/Seni... (Applying from HN? Mention it in your application.)

Youth Inc | Software Engineer | ONSITE/HYBRID Boston

Youth Inc. is a venture-backed commerce and media company focused on the youth and high school sports market.

We’re looking for an early-career Software Engineer who wants to grow fast by growing a real, production system with real customers.

We’ve already gone from zero to one and are growing rapidly with customers and revenue. You’ll be building on an existing platform, improving performance, building new capabilities and integrating with partners.

Core Tech Stack - Elixir - Postgres - AWS

Elixir experience is ideal, but we know great people will pick it up quickly.

Please email jbutler@youth.inc

Findigs | Full-time | NYC | 3x/week in office (M,T, Th) | findigs.com At Findigs, we’re transforming the rental experience — making it fairer, stress-free, and more convenient by changing the fundamentals of renting.

We build high-scale applications that streamline renting for millions. Our modern tech stack includes Python, Typescript, Node.js, React, and scalable cloud infrastructure.

We foster a collaborative culture where engineers have high ownership and autonomy, taking features from concept to deployment.

Join our sharp, supportive, and mission-driven team in our newly renovated SoHo/NoHo office.

Open roles:

Lead Software Engineer (https://jobs.lever.co/findigs/1ea92751-1c85-4eb6-84b4-86c529...)

Senior Software Engineer (https://jobs.lever.co/findigs/3b39616d-223f-4326-a500-f804c3...)

Mid-Level Software Engineer (https://jobs.lever.co/findigs/5e865781-244f-4e4f-b7bd-e09973...)

Competitive Base Salary plus Pre-IPO Equity

401k Matching up to 4%

Unlimited PTO

Lunch in office every day, home office setup stipend, monthly gym stipend

Addepar is hiring a Software Engineering Manager for our New Workflow Platform. We are pivoting from a SaaS suite to a global orchestration platform. We’re looking for a hands-on leader with 2+ years of management experience and a deep understanding of workflow technologies such as Temporal, n8n, Pipedream and Distributed Systems. Lead a team of Senior Staff engineers building the "Agentic Fabric" of the financial world.This is a hybrid role in our NYC office. Hybrid | NYC | Python/Java

Job description: https://job-boards.greenhouse.io/addepar1/jobs/8460804002 Reach out directly here: douglas.clifford@addepar.com

Krea; Fulltime; Onsite, San Francisco, CA, USA.

I'm the cofounder of Krea (https://www.krea.ai/). We build creative tools and large-scale infrastructure for multimedia teams. Users range from hobbyists to world-renowned creatives: architects behind the World Trade Center or creative teams at Apple.

We treat research, engineering, and creativity as first-class citizens; we want engineers for our research, product, and supercomputing teams.

What we value (staff & company writings):

- AGI: https://www.matthewnewton.com/blog/arc-challenge-diffusion

- Diffusion research: https://re-n-y.github.io/devlog/rambling/steering/

- Pragmatic LLM reflections: https://maxemitchell.com/writings/i-read-all-of-cloudflares-...

- Low-level computing: https://gab-menezes.github.io/2025/01/13/using-the-most-unhi...

- Open-sourcing our research: https://www.krea.ai/blog/flux-krea-open-source-release

Some projects:

- WebGL2/WebGPU for node-based tools (SideFX Houdini) & CRDTs/OTs for collaboration

- Large-scale multimodal model training

- Cross-service metrics, tracing, and observability

- LLM-driven JS bundle optimization and testing

---

Apply via `ssh apply@krea.engineering`

Gladly | Remote (US) | Staff Software Engineer, AI & Automation | $60k–$215k + Equity | https://www.gladly.ai/careers

Gladly is at the forefront of building retail customer service AI. Our AI is live in production with customer-centric brands like Crate & Barrel, Sephora, and REI. We have the ingredients that make AI work: rich data, close customer partnerships, and a strong engineering culture.

We're hiring Senior & Staff Software Engineers to lead major AI & Automation initiatives. This is a high-impact, hands-on role for someone who wants to ship fast, collaborate deeply, and build systems that help real people.

You should have:

- 5-10+ years of full-stack experience (Go, TypeScript, React, Postgres a plus)

- Experience with generative AI, multi-agent systems, RAG pipelines (can be personal projects / side projects)

- A bias toward impact and product thinking

- Excellent collaboration and communication skills

Bonus: Entrepreneurial or other leadership experience. We're a remote-first company with competitive pay, meaningful equity, and a focus on doing real work with great people. Learn more + apply: https://www.gladly.ai/careers Or reach out directly: gerad@gladly.a

Matterhaul | Infra Eng, AI Eng, Founding Marketer | SF (SoMa) | ONSITE (4 days/week) | Full-time | matterhaul.com

Matterhaul is building an AI-native ERP for the $2T physical goods supply chain. We are replacing 30-year-old legacy systems with a unified data layer and agents that have already cut customer quote times by 40%.

We are a tight-knit founding team with meaningful runway (ex-Stripe, Meraki, Verkada, Pinterest) and are hiring for three founding roles: - Founding Infra Engineer: 5+ years experience. Lead our migration to AWS/Aurora. We need someone with reliability "battle scars" who has built and owned infra from the ground up. - Founding Applied AI Engineer: Senior Eng with production LLM experience OR a hungry, AI-native early-career builder. - Founding Marketer: Strategy-first IC focused on product marketing and events for our relationship-driven customer base.

US Work Authorization Required If you’re interested email britta.dance@matterhaul.com with your information.

Kredit | .NET Engineer Roles | Remote (US) | Full-time

Kredit (https://www.kredit.fyi) is on a mission to resolve consumer debt. We help people get out of financial hardship and offer tools for companies looking to manage their internal processes. Kredit is a small team and growing.

Our stack: .NET Core, C#, PostgreSQL, CQRS, Angular, GCP, Kubernetes, Terraform and much more. We are looking full-stack engineers that have a .NET background, eager to learn and motivated to work in a startup.

If this sounds interesting to you, please reach out to recruiting at trykredit.com

Starbridge | Senior Engineers (Kotlin/Java/React/Typescript) | NYC or Remote | Full-time | 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.

Backend Engineer: (looking for Kotlin/Java/Scala experience). You'll work across the backend: building enterprise integrations, large-scale scraping and parsing pipelines, and systems that let users apply LLMs to millions of documents to generate insights at scale.

AI Engineer: Applied AI plus strong software engineering. You will build, evaluate, and deploy LLM-driven features like deep document analysis and interactive chat, working with models from OpenAI, Anthropic, and Gemini. Expect hands-on Python, ML system design, experimentation, and production reliability. Bonus for RAG depth and frameworks like LangChain, LlamaIndex, or Hugging Face.

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.

Coalition Security | Principal Software Engineer | REMOTE (US) | Full-time | https://coalitioninc.com

Hey there, I'm Jake, Co-Founder & CTO of https://wirespeed.co. Following our acquisition by Coalition, we're expanding our engineering leadership team to support our crazy growth. We're looking for a principal-level backend engineer to own the core of our platform. You'll have end-to-end ownership of high-impact integrations (EDR, identity providers, SIEMs), detection & event processing pipelines, technical direction, and serve as a force multiplier for the team.

What we're looking for:

- Deep backend/distributed systems experience (TypeScript/Node.js preferred)

- Experience as a founding engineer or in highly autonomous roles

- Solid grasp of at least one: EDR, IAM, SIEM, or detection engineering

- Track record of leading architecture and mentoring senior engineers

Full remote, 100% medical/dental/vision, flexible PTO.

Apply: https://www.coalitioninc.com/job-posting/4675147005

Innolitics | https://innolitics.com | Medical Device AI/ML Engineer | REMOTE | Full-Time | $120,000 - $150,000 + benefits | US Only |

Innolitics helps companies build and FDA-clear healthcare AI.

Requires at least 3 years of full-time experience in AI/ML development work.

Apply here: https://innolitics.com/join/medical-device-ai-ml-engineer/

Seeq | https://seeq.com | Staff Software Engineer (Frontend, Backend, Platform) | REMOTE (Some crossover w/ PST required) | Full-time | $170k + annual cash bonus + equity. Salary range for US-based; local adjustments for other countries.

Seeq creates cutting-edge data analytics software for industrial process data, serving sectors like pharmaceuticals, energy, and manufacturing. Our core product is a robust calculation engine capable of executing advanced math and machine learning algorithms on streaming time-series data. By leveraging generative AI, we enhance usability and accelerate outcomes for our users. We've built up a great remote culture (e.g. annual meetups, home office allowance, generous PTO, a remote office app we created to collaborate) and a dev team that enjoys tackling hard problems that make a difference for our customers (dev blog for more: https://geeq.seeq.com/).

Be sure to mention that you came from Hacker News in your application!

Staff Software Engineer - Developer Experience (Gradle, Kubernetes, Devex): https://apply.workable.com/seeq/j/A966C8897D/

Staff Software Engineer - Platform (Kubernetes, Terraform, Grafana): https://apply.workable.com/seeq/j/FD4C7FD4F3/

Form AI | Full-Stack AI Engineer (Contract) | REMOTE (US) / Austin | https://formai.build

Form is an AI fluency/integration startup for executives & their teams. We build AI applications tailored to how clients work, and need an engineer to do the building.

A typical engagement starts with a client describing a workflow eating their week. You scope alongside them, then build something that makes it disappear. Stack is whatever fits: TypeScript and Python, React or Next.js, Claude and other LLM APIs, integrations with the SaaS our clients use (Notion, Slack, Google Workspace). RAG, agents, prompt engineering, and evals when the work calls for them, not for show.

We're looking for someone who has shipped end-to-end as an early engineer somewhere small, has real opinions about LLM applications, and writes readable code. Comfort scoping with clients and communicating in writing is essential, since most of our work happens that way.

1099 fractional, paid monthly. 10-20 hrs/week, $75-150/hour. 40-hour monthly minimum, scaling with client demand. Potential to convert to a full-time role ($150k-$220k) as the practice grows.

Remote, Austin/US-based. To apply: https://formai.build/jobs or email maya@formai.build.

Red Balloon Security | Security Researchers, Software Engineers | NYC, Northern Virginia | ONSITE, HYBRID | Full-time, Interns (paid) | US Citizenship Required | https://redballoonsecurity.com

We are a team of expert researchers and engineers focused on securing embedded devices. We work with partners across critical industries, and on government-funded research programs (think DARPA). "Full-stack" for us doesn't just stop at back end code; it means being comfortable with operating systems, firmware, and signals going over the wire. You'll succeed here if you are a quick learner who loves working independently on tough, technical problems nobody has ever solved before.

Day-to-day tasks might include:

* Tearing apart a device in our lab, reverse engineering its firmware, and finding security vulnerabilities

* Developing an automated, robotic platform for hardware reverse engineering (custom hardware, vision models, user interfaces, etc.)

* Hooking and patching RTOS kernel functions to execute defensive device integrity validation code, without violating real-time requirements

* Building scalable servers for processing millions of device telemetry messages across thousands of concurrent connections

* Maintaining open-source reverse engineering tools (like OFRAK https://ofrak.com) and cooking up fun demos for hacker conferences (like this web game we built for DEF CON in 2023 https://ofrak.com/tetris/)

Our main office is in Manhattan, but we are building out a new office in Northern Virginia. US citizenship required. Bonus points if you have an active security clearance, or are willing to get one.

Be sure to mention Hacker News in your application.

https://redballoonsecurity.com/careers/

Longshot Systems | Multiple Senior Eng | London, UK, hybrid | Full time

Longshot is at the cutting edge of sports betting modelling R&D and has been producing market beating models for a decade.

We need senior engineers across platform and strategy. Excellent pay and benefits, flexible hybrid working, office in central London.

Very high performance environment with high trust. Team small but growing. Sports knowledge optional, passion and deep technical experience mandatory. Come and join the fun in the new world of sports betting markets.

Please check out our recruitment link here: https://apply.workable.com/longshot-systems-ltd/

River | Senior + Staff Engineers (Elixir, React, ML/AI) | SF or NYC or REMOTE (US, Europe, South America) | Full-Time | $150K-$250K + equity | https://jobs.ashbyhq.com/river?utm_source=Zp9nJyqvd4

I'm Alex, founder and CEO of River. I also wrote the first line of code and still ship PRs.

River is a client-first Bitcoin-only financial institution building the financial app people use every day to save in bitcoin and spend in dollars. We custody over 25,000 BTC, serve individuals and businesses across the U.S., and are profitable. We publish cryptographic proof of reserves monthly and our company financials annually.

Here's what our engineering team is working on:

  - Real-time Bitcoin and USD payments, trading, and settlement on an Elixir monolith with a unified GraphQL API
  - Next-generation Bitcoin custody with quorum signing, key ceremonies, and geo-redundant infrastructure
  - Scaling our ML/AI systems (Python, PyTorch, XGBoost, LLMs) to automate operations and tackle fraud/risk
  - A ground-up React and React Native rewrite of our consumer app
  - Porting our Lightning Network infrastructure from Go into Elixir

  - Staff Software Engineer (Elixir) | $200K-$250K
  - Senior Software Engineer (React, Full-stack) | $150K-$220K
  - Senior/Staff Machine Learning Engineer | $200K-$250K

Caribou | Toronto| Full Time | Hybrid (one day in office) | https://www.caribou.care/

Caribou helps homecare organizations attract, engage, and retain staff through data-driven recognition, rewards, and coordination tools that make the lives of patients and their caregivers better. We're a small company of ~50 people who are mostly based in the GTA.

We are building on our core product such as deploying AI-powered agentic systems that work alongside agency coordinators to handle routine coordination, outreach, and administrative workflows to improve agency operations.

We are hiring:

Senior Software Engineer: https://caribou.breezy.hr/p/66f1f5c2f30f-senior-software-eng...

Senior Analytics Engineer: https://caribou.breezy.hr/p/990e66f091e4-senior-analytics-en...