Sidekick Labs | Senior Technical Product Manager | REMOTE (US Timezones) | Full-time | $170k to $230k Base + Equity + Health

Sidekick builds AI security software for enterprises. Our sensors observe AI behavior and use in situ. From those observations, our reasoning pipeline produces an application inventory and a risk picture, allowing us to provide real-time intervention and coaching right when it matters.

Compensation: base salary scaled to experience, meaningful early-stage equity, and 100% covered health insurance for you and your immediate family.

We are a highly senior team. Most of us have been founders or on early founding teams, so we operate with high ownership. The PM team is small, and everyone on it has a real, current AI-assisted practice: we design, prototype, and build with AI tools every day.

The role: You'll spend your time with customers and in the product. You'll run discovery with CISOs and IT teams, guide pilots, and turn what you learn into clear direction for engineering. You'll also build: design and prototype with AI tools, make your own tools for research, analysis, and reporting, and open PRs against the product when that's the fastest way to get something done. On a small team, expect to take on whatever the company needs.

What we're looking for:

- 10+ years building B2B software, at least 5 of them as a PM

- Customer discovery and pilots you ran yourself, ideally with enterprise IT or security teams

- Things you built yourself that you can walk us through: prototypes, internal tools, or merged PRs

- Crisp, clear communication, written and spoken, with customers, engineers, and executives

- Security experience is a plus

To apply: Send an email to hiring@sidekicklabs.com with "Senior Technical Product Manager" in the subject. Include a PDF of your resume, links to your LinkedIn and any GitHub or personal site, and a short description of something you built yourself (a prototype, a tool, a PR): what it does and why you built it. Include a link if you can share one.

I'm Paul, VP of Product: https://www.linkedin.com/in/paul-riegle/

https://jobs.sidekicklabs.com

https://sidekicklabs.com

[p.p. Eric (hn:mcintyem), VP Technology]

Albs Labs | Member of Technical Staff (Multiple Positions) | Freiburg, Germany | ONSITE | Full-time

Albs is an AI research lab building real-time multimodal intelligence for machines, enabling them to see, hear, reason, and interact. We treat model architecture, inference, and runtime as one system. We are hiring several Staff- and Senior-level IC roles and are looking for experienced researchers and engineers, typically with a PhD and several years of research or industry experience, or an equivalent track record. We hire across the following areas:

- LLM Post-Training (RLHF, preference optimization, evals)

- Speech-to-Speech Models (incl. ASR and TTS)

- LLM Pre-Training (incl. model architectures and optimizers)

- Synthetic Data Generation (pipelines, filtering, data quality)

Learn more and apply at: https://albslabs.com/careers

Helmsted | Founding AI Engineer | REMOTE (US) | Full-time | $160K–$200K + equity | https://helmsted.ai/careers

Helmsted is the AI-native operating system for wealth advisors of complex households: planning, tax and estate analysis, meetings and the client portal, run by agents that do the work. Small team, live with pilot firms, shipping daily.

You'd build the agents and the intelligence behind them with our CTO: evals and systems that improve from their own usage, long-term memory, retrieval over millions of documents, model routing and cost, and secure, permissioned access to client data. Fintech experience is a plus, not a requirement.

Remote in the US today, with eventual relocation as the team centralizes. Paid sick leave; health insurance and 401(k) under discussion. Applications accepted on an ongoing basis.

To apply, email careers@helmsted.ai with a resume and short answers to the questions in the full JD: https://helmsted.ai/careers/helmsted-founding-ai-engineer.pd...

AI x Healthcare Startup | bracehealth.com | Boston, MA Onsite | Full-time | Early Engineer

We're looking for a backend-leaning fullstack dev. You will be one of the first engineers outside of the founding team. Here is a bit more about us: We're a seed stage AI startup backed by top tier investors. We're on a mission to ensure every patient gets covered for the care they need and every doctor gets paid for the work they do.

We’re building deep, vertically integrated technology systems to solve fundamental problems in US healthcare - the biggest market in the world ($5T). We use AWS, K8s, React, and Rust but there is no requirement to have prior experience with them specifically. We'll teach you!

We are a founding team made up of ex-YC, Amazon, Meta, Microsoft, and Harvard Business School with previous successful exits.

You’ll own entire product areas and be expected to play a true full-stack role, with the ability to go from customer need to end-state product. You’ll work directly with the CTO at the edge of what's possible with LLMs and agentic systems applied to a hard domain. You'll contribute to technical strategy, make real architectural decisions, and write vast amounts of production code with AI first developer workflows. Most importantly, the technology you build will have real impact on real people - clinics staying open, clinicians getting paid, patients getting care.

This is an opportunity to work in a fast paced, high ownership environment while solving real problems in healthcare.

We're happy to share more details on the role in person/on zoom. Please fill out this form if interested!

https://wgwx7h7be0p.typeform.com/to/LV0t8OjI

Mesmer (YC P25) | Founding Engineer | Berlin | ONSITE | VISA + relocation | €100–140k + 0.5–1% equity

Mesmer builds software factories for engineering teams. Keeping a team at the state of the art with agents is a full-time job, so we do it for our customers: we're always finding the biggest bottleneck in how their team ships and fixing it in their factory.

As a founding engineer you'd do both halves. You'd work in customers' factories, at the frontier of how software gets built with agents, and you'd build the product that makes that work repeatable. We're seven people, repeat founders and CTOs, in one office in Berlin.

We're looking for senior engineers who use coding agents every day and have strong opinions about how the work around them should change.

About two weeks from first call to offer, no live coding or take-home. Email hiring@mesmer.co with a short intro and something you've built.

Thunder Compute (YC S24) | C++ Systems Engineer | San Francisco (Onsite) | Full-time | Visa sponsorship | https://www.thundercompute.com

We run a GPU cloud on systems software we built from scratch in C++. We're hiring for our systems engineering team; designing the distributed system behind what is essentially a hypervisor for GPUs.

You'd report to Brian, our CTO (ex-Citadel Securities quant dev). Team is from Citadel Securities, Aquatic, Old Mission and AWS. Series A, $17.5M+ from Matrix and YC.

Comp: $250–325K base, 0.1–0.3% equity, highly competitive profit-sharing bonus pool. Currently there are $3.3M in bonuses entering this pool tied to gross-profit milestones.

Apply: https://jobs.ashbyhq.com/thundercompute/2efae53b-817c-43e7-9...

If you're cracked at systems software and want to do something more meaningful than creating liquidity, reach out.

More at https://www.thundercompute.com/careers. Mention HN when you apply.

Voluntas | Remote | Full Time | Software Engineer

Voluntas is a trading firm written 100% in Rust. We run systematic strategies, currently specializing in prediction markets, looking to expand our systems more broadly.

We're looking for someone passionate about data collection, clean abstractions, and processing trillions of rows of data. We are about the quality of the code we write, and we prioritize time for our engineers to properly build their systems, instead of pressuring them to churn out AI generated code.

If you're interested, send an email to jobs@voluntas.io with a little bit about yourself. We'll respond with a link to our engineering challenge (in Rust).

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.

Opsin Security | Product, Backend & AI Engineers | Full-time | $175K–$250K base + equity | Hybrid / REMOTE (US) | Visa sponsorship

I’m Shay, a founding engineer at Opsin. We build security software that helps enterprises understand which AI agents they have, what those agents can access, and where they pose a risk. We recently raised funding (https://www.opsinsecurity.com/blog/opsin-raises-21m-to-expan...) and are growing our engineering team.

We’re hiring across three roles, from 3+ years of experience through Staff level: - Product Engineer: Build customer-facing features end to end, from understanding the problem to shipping and iterating. https://www.opsinsecurity.com/jobs/product-engineer - Backend Engineer: Build and operate APIs, services, and data workflows behind our security platform. https://www.opsinsecurity.com/jobs/backend-engineer - AI Engineer: Build production AI systems that evaluate agents and turn identity, permissions, data, and activity into explainable risk insights. https://www.opsinsecurity.com/jobs/ai-engineer

Location: San Francisco / San Jose preferred; Boston and NYC areas also welcome. Hybrid means 2–3 days together in person each week. Fully remote within the US is also possible for the right person.

Compensation: $175K–$250K annual base, depending on level and qualifications, plus meaningful early-stage equity and comprehensive benefits through Justworks. Visa sponsorship available.

Apply: careers@opsinsecurity.com. No agencies, please.

JPMorganChase | Lead Software Engineer | ONSITE (Jersey City, NJ) | $156,750 - $215,000.

At JPMorganChase, your work helps shape the future of global finance. Join a team that serves millions of customers, businesses and communities.

My group is hiring two software engineers:

(1) Full stack or front end developer. React, Angular. Java (Spring Boot) and/or Python helpful. 5+ YOE.

(2) Full stack or back end developer. Java (Spring Boot), Python, Oracle, Snowflake, Databricks. 5+ YOE.

https://jpmc.fa.oraclecloud.com/hcmUI/CandidateExperience/en...

https://jpmc.fa.oraclecloud.com/hcmUI/CandidateExperience/en...

Rune Labs | Remote (US, CA) | Full Time | Senior or Lead Backend Engineer

Rune Labs is a precision neurology startup focused on helping people with Parkinson's. We built StrivePD, an app to help them manage their disease. It's used by individuals, pharma companies running trials, and health systems.

We're looking for a Senior or Lead Backend Developer. We're a small team, so will have the opportunity to work on a bit of everything.

Apply here: https://forms.gle/N57yNv7qgKJrmAVs6

Stratirus (a Tennetech company) | AI Developer + Linux Admin (junior to mid) | REMOTE (US only, Central Time hours) | US work authorization required, no sponsorship | Full-time or part-time, contract or hire | $65k to $100k | No agencies

Our optional take-home is a broken Ubuntu server: a service that won't stay up, a nightly report that hasn't gone out in days, and a disk that keeps filling. Fix it, write a script that heals a fresh box, and build a small read-only MCP tool so an AI agent can check on it. 60 to 90 minutes, unpaid, no LeetCode. If that sounds like fun, read on.

We're a small and growing AI and Microsoft 365 consultancy in Franklin, TN. We build AI agents and automation for small and mid-sized businesses, and harden and run the systems underneath: Microsoft 365 tenants, SharePoint, and Linux boxes. We're AI-agnostic and use what fits the client, mostly Claude Code, the Microsoft 365 stack with Copilot and Copilot Studio, Gemini and Gemini Studio, and Oracle OBI. The role is about 60% agent development (MCP servers, Claude Code, Copilot Studio, Power Automate, Gemini) and 40% Ubuntu administration (systemd, Docker, patching, backups, monitoring). PeopleSoft experience is a plus. You'll work directly with clients, so explaining things clearly to a small-business owner matters as much as the code. Early-career and career-switchers welcome.

We expect you to use AI every day. What we hire for is knowing when it's wrong, so one of our three application questions asks about a time it fooled you.

To apply, email your resume to hiring@stratirus.com with short answers to: a time a client or boss made an unreasonable demand and how you handled it; a time an AI confidently gave you a wrong answer you followed, and how you caught it; and something you've built with AI that you still use. Work samples get strong preference. We read every application ourselves and reply to everyone, so please write your answers yourself.

Process: email application, a 45-minute video call where you walk us through something you've built, then a conversation about the role.

Remote within the US only, Central Time business hours. Must be legally authorized to work in the US without visa sponsorship, now or in the future. No recruiters or agencies, please.

https://github.com/Stratirus/ops-agent-challenge

Questions: hiring@stratirus.com

Charly | Sales / Account Executive GovTech | ONSITE Berlin, Germany | Full-time | Seed | Base+Variable

Charly builds a voice and AI assistant for municipalities. We launched 13 months ago. Today, 100+ German municipalities use Charly, covering 1.4M+ residents across 9 federal states.

We're a team of 9 (6 in engineering) with one Account Executive, and we're looking for up to three more with a focus on German-speaking countries (DE, AT, CH), but open if you think you can enter other European markets for us.

Both junior and senior candidates welcome.

Apply: https://hallocharly.de/en/careers/account-executive-govtech

River | Staff Engineers (Elixir) | NYC or REMOTE (US, Europe, South America) | Full-Time | $200K-$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 33,000 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

We're hiring: - Staff Software Engineer (Elixir) | $200K-$250K Apply at https://jobs.ashbyhq.com/river/610f652b-bdb9-4d82-9973-680ba...

humans& | Product Engineer (Member of Technical Staff) | San Francisco | ONSITE | Full-time

humans& is a human-centric frontier AI lab. Our view is that AI should help people work together, so it has to understand people and the relationships between them, not just tasks.

Last month we launched Boba (https://boba.app), an assistant you can text one-on-one or add to a group chat. It runs on Ampersand, our first model, trained with RL over millions of simulated days with thousands of simulated people. Boba keeps track of your goals for weeks or months, sets up reminders and calendar invites, uses email and searches the web. In a group chat it reads social context and decides when to speak up and when to stay quiet. Early users have sent it more than a million messages.

Looking for product engineers who have done exceptional work on how humans and computers interact. You’ll build the product side of this: new interaction patterns for an AI that lives in group chats, remembers people and acts for them.

The founding team comes from xAI, Google DeepMind, OpenAI, Stanford and MIT. Our investors include NVIDIA, GV and SV Angel.

Apply: https://humansand.ai/

Cologne, Germany | UMH | Product Engineer | Full-time | 70k - 100k EUR | ONSITE (part remote)

Hi, Alex and Jeremy here from UMH.

8 years ago, Jeremy was absolutely frustrated with the status quo of data infrastructure in manufacturing. Companies paid millions per year for "shitty 90s software" and are still doing that today, when there is much better software out there for open-source. So we decided that we can do this better, first founded a System Integrator, realized most of the tasks in setting up and maintaining a data infrastructure can be standardized, and decided to found the currently VC-backed UMH, which is built on open source software and is open source itself.

What we're actually building: We build and scale a real-time data platform that runs hundreds of Benthos pipelines inside a single Docker container (UMH Core), processing millions of industrial messages that control actual production processes.

Plus a local-first user interface (Management Console) where both non-technical factory workers and power-users/developers can work together. And yes, we care about UI in enterprise/industrial software.

https://www.umh.app/careers/product-engineer-f-m-d-70-100k-e...

Pond AI | Head of Engineering (founding-level) | San Francisco | Onsite | Full-time | https://joinpond.ai

Most non-tech businesses know exactly which workflows they want AI agents to handle, but have no one to build, connect and run them. Pond delivers custom AI agents to these businesses through a network of 7k AI builders, with Pond as the platform and security layer over MCP.

We're backed by Tier-1 VCs and a co-inventor of GPT, and we're looking for a hands-on technical leader to own the platform end to end.

You'd be a great fit if you:

- Build full-stack and ship AI agents in production (TypeScript/Python, LLMs, tool use)

- Have worked on payments, agent coordination/MCP, or platform/marketplace products

- Have early-stage startup experience (founder, founding or early engineer) and like to grind

Email dylan@joinpond.ai with something you've built.

Better Stack | https://betterstack.com/ | /^Full-?stack Engineer$/i | Remote (North America & Europe)

We are software builders at :heart: CEO is a software engineer, COO is a software engineer, and you guessed it, CTO is an engineer, too. We are engineers, making the tools we always wanted. If you love building amazing software, you're at the right address.

We are looking for software engineers who, given enough time, could build Better Stack on their own = looking for full-stack product engineer generalists to help us create high-quality software with exceptional UX, end-to-end.

Apply at https://betterstack.com/careers/fullstack-engineer

How we operate: https://betterstack.com/careers – https://betterstack.com/careers/engineering – https://juraj.blog/

Canopy Connect is hiring for remote roles in US/Canada.

https://www.usecanopy.com/company/careers

Stream | Multiple Positions | Amsterdam (NL), Skopje (North Macedonia) | Boulder, CO (US) | Toronto (Canada)) | Remote possible | Full Time | Visa Sponsorship | https://getstream.io

Stream powers Chat, Video, AI Moderation, and Activity Feeds for billions of global end users across thousands of different apps.

We're constantly hiring backend engineers, but I wanted to take this opportunity to tout my own hire because I'm hoping you'll come work with me... I'm pavlov on HN, been here for nearly two decades, and working in realtime media for a good while longer. Now I run the Video team at Stream and I'm looking for a Staff Engineer. You'd report to me with a direct line to our CTO. Check out the details:

https://jobs.ashbyhq.com/stream/82b37457-3d54-4f7a-8a0e-ae52...

You'd own the media plane of Stream Video. It's a modern stack: SFU in Go, cascading to handle very large audiences, ingest and recording fleets, global multi-cloud edge. Video is fundamentally different from request-based services, which means this is not just a seat in Stream's shared infra team, but a genuine Staff role with its own roadmap defined by you. You can email me directly at pauli.ojala@getstream.io, happy to connect and tell you more.

Full-time role, hybrid with 3 days a week in our Amsterdam office, or remote from anywhere in the EU. Visa sponsorship for the Netherlands.

Also hiring: Staff Software Engineer, Infrastructure (Amsterdam), Staff Software Engineer, Backend (Amsterdam), Senior Fullstack Engineer, Moderation (Toronto).

See all roles: https://jobs.ashbyhq.com/stream?utm_source=5rrpvObp3r