E2B | SF, Prague, Remote | Eng, GTM, and Operations | https://e2b.dev/

E2B is building infrastructure for AI agents, and has quickly become the open source standard for agentic workflow sandboxes. Customers include Perplexity, Groq, Manus, and more. We are experiencing explosive growth and hiring for several technical and non-technical functions as we prepare to 3x the team this year.

- Distributed Systems Engineer

- Platform Engineer

- Head of Finance

- Business Operations Leader

- Forward Deployed Engineer

- Founding Designer

- Security Engineer

- DevRel Engineer

- Customer Support Engineer

- Product Engineer (frontend focused)

- Product Engineer, AI

For salary ranges, job descriptions, and to apply, visit https://e2b.dev/careers. You can also email riece@e2b.dev for faster response.

Mercor (YC W23) | San Francisco, CA | Full-Time

We're building the AI layer for global hiring — matching companies with top technical talent and handling everything from evaluation to payroll. We process payments to contractors in 150+ countries and are scaling fast. Backed by Peter Thiel, Jack Dorsey, and others.

Software Engineer, Payments | SF or NYC

https://jobs.ashbyhq.com/mercor/3c02ed8c-3807-4aef-91cc-ccca...

Own the systems that move money across 150+ countries. You'll build and scale Mercor's payments infrastructure — handling global disbursements, reconciliation, and financial reliability at scale. Strong backend chops and interest in fintech systems required.

Infrastructure Engineer | SF or NYC

https://jobs.ashbyhq.com/mercor/296c4031-5e98-4772-95f5-a9eb...

Build and own the infrastructure that powers Mercor's core platform. You'll work across compute, networking, reliability, and developer tooling — keeping a fast-growing system stable and scalable. Ideal for engineers who care deeply about uptime, performance, and platform efficiency.

Software Engineer, Platform | SF or NYC

https://jobs.ashbyhq.com/mercor/cb67851b-0269-4cf5-996c-34c3...

Build the foundational systems that all of Mercor's products rely on — APIs, developer primitives, internal tooling, and shared services. You'll work across teams and have outsized impact on engineering velocity and product quality.

Software Engineer, Fraud | SF or NYC

https://jobs.ashbyhq.com/mercor/4d817fa9-8860-4063-9da7-f484...

Detect and stop fraud on one of the world's largest talent marketplaces. You'll build real-time signals, risk models, and enforcement systems to protect the integrity of Mercor's platform — balancing precision with a great experience for legitimate users.

Data Engineer | SF or NYC https://jobs.ashbyhq.com/mercor/7d9d9439-848b-4fb4-b276-9efc...

Build the data infrastructure that powers Mercor's matching, evaluation, and business intelligence systems. You'll design and own pipelines, warehousing, and data models that inform both product and operations at scale.

Software Engineer, Agents | SF or NYC https://jobs.ashbyhq.com/mercor/4f4fc8c3-4056-47bb-9e00-1db6...

Build the agentic systems at the core of Mercor's product — autonomous pipelines that evaluate candidates, match talent, and take actions on behalf of users. You'll work at the intersection of LLMs, product, and infrastructure to ship AI-native features.

Uncountable | NY, SF, London & Munich (In-Person) | Full-Stack Engineering https://www.uncountable.com/hiring/hn

Uncountable accelerates R&D for industrial scientists across leading materials, chemicals, and life sciences organizations. With our SaaS solution, our customers get better products to the market in half the time. Uncountable was founded by MIT and Stanford engineers and has been profitable since 2016. Our team has grown from 50 to 150 over the last two years.

Full-Stack Engineers | $130k - $220k + Equity

---> Uncountable is looking for engineers who can spearhead the development of the Uncountable Web Platform. The position is heavily product-driven and comes with challenges across the stack.

LLM Applications Engineers | $130k - $220k + Equity

---> Uncountable is looking for LLM applications engineers who can push the Uncountable data model forward through LLM-native UI's and application extensions.

--> Summer internships and working student positions are also available.

Learn more: https://www.uncountable.com/hiring/hn

Uncountable is hiring in New York City, San Francisco, London, and Munich.

Contact our CTO directly at jason@uncountable.com

Factory AI | AI, Fullstack, Frontend, Platform, Data, Product Engineers + GTM, Design, Operations | San Francisco, CA (+ NY, London for some roles) | ONSITE | Full-time | https://factory.ai

At Factory we build Droids, autonomous software development agents that review PRs, implement features, run tests, fix incidents, and handle migrations for enterprise engineering teams. Droid is model agnostic and surface agnostic, and works across your CLI, IDE, Web/Desktop app, CI/CD, Slack, and Linear. Customers include Nvidia, Adobe, Adyen, Klarna, and Ernst & Young.

We raised a $150M Series C at a $1.5B valuation, backed by Khosla Ventures, Sequoia, Blackstone, Insight Partners, NEA, and NVIDIA.

We're hiring across the stack:

- AI Engineer: agentic systems, LLM integrations, evals

- Fullstack Engineer: platform, APIs, auth, billing, terminal UIs

- Frontend Engineer: web and desktop apps (React, TypeScript, Electron)

- Platform Engineer: infrastructure, sandboxing, CI/CD, cloud

- Product Engineer: end-to-end feature ownership

- Data Engineer: pipelines, analytics, telemetry at scale

- Security Engineer / Research Engineer

Stack: TypeScript, React, Node.js/Bun, Python, GCP/AWS, Firestore, Electron.

We're also hiring in these roles: Enterprise & Mid-Market AEs, Solutions Engineers, Forward Deployed Engineers, Product Marketing, Product Manager, Product Designer, Partnerships, and Operations (RevOps, BizOps, People Ops, Recruiting). Some roles available in NYC and London.

In-office 5 days a week in SF (walking distance to Caltrain). Catered lunch and dinner, full medical/dental/vision, 401(k).

If you have strong opinions about how AI should actually work for production engineering systems at enterprise scale: we want to talk.

Apply: https://factory.ai/careers

Triumph Financial | https://triumph.io | Engineer (Lead | Staff) & Staff Product Manager | REMOTE (USA only) | Full Time | $150-$300k

At Triumph Financial, we’re building the modern freight payments network powering over $37B in annual volume. Our mission is to make freight transactions seamless, accurate, and secure, helping an entire industry move faster.

We have a variety of roles open, and I'd encourage anyone to checkout our careers page: https://triumph.io/about-us/careers/

For our Carrier vertical specifically we are looking to hire:

* Lead / Staff level engineers (.NET (we have F# in production now), or Rails backend).

* Staff Product Manager

On the PM front: two roles, one on our user facing product, one in our operations team (ideal target candidate loves to build efficiencies).

Roles are here: https://triumph.io/about-us/careers/

Please put “Ash HN” or something similar in the referrals so we can bubble you up.

If you have questions, feel free to reach out directly at aanderson at tfin dot com.

Revio Insight | Data Engineer | Remote (US) | Full Time

We are seeking a Data Engineer to design, build, and maintain the data infrastructure that powers our platform, which serves community banks. This role will focus on building reliable and scalable pipelines to ingest, process, and transform core bank data. They will also design integrations of our data with CRMs and marketing automation platforms.

Our platform primarily receives structured data from customers in CSV format delivered via SFTP, which must be validated, transformed, and loaded into our AWS-based data infrastructure. The Data Engineer will own the reliability, performance, and scalability of these pipelines while ensuring strong data quality and security practices appropriate for financial data.

This role will work closely with product, engineering, implementation, and customer teams to ensure accurate and timely data processing that supports both customer-facing functionality and internal analytics.

To apply, email dataengineer [at] getrevio [dot] ai.

Pango | Senior Software Engineer - Full Stack, Technical Lead / Software Engineer | On-site (hybrid) in Stockholm, Sweden (Visa Sponsorship possible) | Full time

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.

You are a good fit if:

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

* You are happy to take on work that in a large company is divided into multiple roles, and execute it all at an excellent level.

* You are unafraid of any technology. If we need a desktop app and you haven't done one before, you will study the documentation of Electron.js and build one. If a model for predicting delivery times is needed, you will do a literature review to find the right architecture and train one.

* 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.

* Extra points if you write the initial email - however short - using your own words.

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 lukasz@pango.ai if you are interested or have any questions. We review applications immediately and move quickly.

DuckDuckGo | Multiple Roles | Remote | Full-time | $178,500 - $242,800 USD + equity

We are looking for candidates that are excited to join us on a mission to raise the standard of trust online. All of our roles are fully-remote, except where specific locations are noted.

Most of the software engineering positions have been repeating here for years because we've been continually hiring for them, scaling our whole team to now over 300 people—many of those hires have come through Hacker News. We've been improving our hiring process over time, and we know some good candidates may have fallen through the cracks. Some people who tried in the past have had success going through it again, and we still pay for hiring projects.

Engineering Director, Backend - $242,800 USD + equity https://jobs.ashbyhq.com/duck-duck-go/3be5b69c-bacc-48fb-941...

Senior Backend Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/53022b02-da3d-4fda-827...

Senior Android Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/57eea673-2519-4afc-a9a...

Senior iOS Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/a1239b43-0c9a-45a4-b35...

Senior Software Engineer - Windows Desktop App - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/47e569c6-f995-4955-a89...

Senior Data Scientist - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/a447e823-fd8f-438f-909...

Director, Data Science - $242,800 USD + equity https://jobs.ashbyhq.com/duck-duck-go/0269aeaa-8d8f-4c8d-b78...

Senior Legal Counsel - Subscriptions & Marketing - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/4ebedcfb-c89f-4cab-bf1...

and MORE: https://duckduckgo.com/careers

Evervault | https://evervault.com | London, New York, Dublin | Full Time | Hybrid (3 days in office)

Evervault's mission is to make world-class data security effortless and pervasive. We use applied cryptography to secure the most sensitive data, in the most sensitive areas like payments, banking and healthcare. We build products to protect customer data with the latest advances in encryption and confidential computing, so our customers can minimize the headache of compliance and data security.

We are a small team (15 engineering, 35 overall) hiring across engineering, sales, marketing and finance for people who are passionate about building out our roadmap of products to protect companies from data breaches in a world where data has become gold.

Open roles:

  - Senior Software Engineer (Payments) 
  - Product Engineer 
  - Design Engineer 
  - Brand Designer
  - Head of Marketing

Apply here: https://evervault.com/jobs or ask me a question shane@

Kinelo | kinelo.com | San Francisco | Onsite (with a bit of flexibility)

Kinelo solves "context myopia": autonomous and semi-autonomous AI agents don't know what they don't know, so they can't search or find the background information required to accomplish tasks accurately and effectively. The result looks like slop but it's not due to model performance, more due to workflow integration. From there, we're rapidly moving into organizing humans together with autonomous "AI coworkers" into workflows that span both. Our goal is to change how organizations are run and structured.

We're hiring for two roles right now:

- Product Engineer (https://job-boards.greenhouse.io/kinelo/jobs/4205846009) -- do you have the software engineering wisdom not yet encoded in an LLM? and do you have product sense and the willingness and desire to think several steps ahead in the market?

- Founding GTM Lead (https://job-boards.greenhouse.io/kinelo/jobs/4215784009) -- there's no playbook for go-to-market in the category we're creating + the landscape is changing daily. Come architect a strategy and then move mountains to execute on it and help us grow insanely fast.

Competitive salary, meaningful (~first batch of hires) equity, founder previously exited to Apple, strong fundraising history (~$10m).

Please email us at jobs@kinelo.com.

If you want to stand out:

- For the product engineer role, tell us how you think the job of a software engineer is changing.

- For the GTM role, tell us about a time you got massive results with limited resources, all through your ingenuity, creativity, and hard work.

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.