Joom | https://about.joom.com/ | Portugal, Lisbon (onsite) | Full-time | Visa | Relocation

Joom Group is an international tech-centric group of e-commerce companies founded in 2016 in Latvia. We are here to transform the largest industry in the world, global trade, making it more transparent, efficient, and technology-driven. Today, Joom Group brings together the following businesses: Joom, a global cross-border marketplace; JoomPro, the first and only end-to-end cross-border B2B marketplace; JoomPulse, an AI analytics tool for Mercado Livre sellers; and Onfy, a pharmaceutical marketplace in Germany. Joom Group’s offices are located in China, Brazil, Portugal, Latvia, and Germany, with headquarters in Lisbon, Portugal. We work as one international team, sharing knowledge and collaborating across countries, businesses, and products.

We are hiring for:

- Top-tier Software Engineer: https://joom-group.breezy.hr/p/eb4507ce63da-top-tier-softwar...

- ML/AI Team Lead at JoomPro: https://joom-group.breezy.hr/p/d1b87e5b32c1-ml-ai-team-lead-...

- Lead Backend Developer (Go) at JoomPro: https://joom-group.breezy.hr/p/df9b90d18230-lead-backend-dev...

- Senior ML Engineer (Search/Marketing Automation): https://joom-group.breezy.hr/p/fe927632328f-senior-ml-engine...

- Senior Backend Developer (Go): https://joom-group.breezy.hr/p/fe927632328f-senior-ml-engine...

- Senior/Middle DevOps / Site Reliability Engineer: https://joom-group.breezy.hr/p/439e666fe481-devops-site-reli...

Engineering Director, Developer Experience | Company: Adyen| San Francisco | Hybrid |

We are seeking a visionary, and experienced Director of Developer Experience (DevX) to lead our global customer experience efforts. In this leadership role, you will be the strategic advocate and driver for ensuring our merchants and partners experience a world-class platform integration. You are instrumental in shaping the developer journey, ensuring that integrating with Adyen is not just easy, but a genuinely superior experience.

You will live and breathe our public APIs, SDKs, and documentation. You will identify where developers face friction and then build the tools and shape the content to eliminate it. This is a role for a builder and a communicator who wants to have a direct, tangible impact and redefine the standard of integration for thousands of developers worldwide.

https://job-boards.greenhouse.io/adyen/jobs/7419377

SEEKING | AI/ML Engineer | Auburn AL → SF/Seattle/NYC/Remote | F-1 STEM OPT through Feb 2028 (no sponsorship needed)

4 yrs production GenAI: AWS Bedrock RAG (92% recall, HIPAA), LangGraph multi-agent copilots shipped to prod, QLoRA/LLaMA 2 fine-tuning, LangChain/LlamaIndex, Python, Docker/K8s.

Co-author ACL 2024 (healthcare AI). MS Data Science UNT 2024. Currently ML Research Scientist @ Auburn (multi-agent VLMs).

Open to: Applied Scientist / ML Eng / GenAI Eng / AI Eng

Email: ksaimanikanta4@gmail.com GitHub: github.com/saikasireddy Resume: [https://docs.google.com/document/d/1pjp-I0XfRP96fxu-nbIdOAVQ...]

Proven Software | QA Analyst | REMOTE (US) Full-Time | $85k-$110k

We've hired three developers from HN and now we're looking for a QA Analyst to join the team.

Proven is a start-up software company delivering a modern electronic medical record (EMR) to behavioral health and physical therapy. Proven's Founders and Executive team have decades of experience successfully growing and scaling companies in healthcare. Our mission is to deliver an innovative and impactful solution to healthcare providers leveraging modern technology. At Proven, we are looking for bright, hard-working, and highly motivated individuals who want to be a part of our fast-growing company.

4+ years software QA testing experience required. Manual testing across our EMR platform — functional, regression, and usability. Strong understanding of SDLC and Agile. Experience building out automated testing processes, EMR/healthcare software, HIPAA, or SQL are bonuses but not required.

We primarily work ET hours but are flexible. Excellent PTO and employer-sponsored healthcare benefits.

Email us at: hiring AT provensoftware DOT com

Greenhouse Software | Engineering Manager (Analytics Product) | REMOTE (Ontario or BC, Canada) | Full-time | We're unable to support sponsorship at this time.

Greenhouse is the company dedicated to making hiring work for everyone. We help over 7,000 companies meet their hiring goals, and over a million job seekers find their next job with our MyGreenhouse product.

The Role: We're looking for a hands-on Engineering Manager to lead our Data Experience team of 7. This team owns our full user-facing reporting and analytics product. It's a high-impact role where you'll lead the strategy for how our customers visualize and interact with their hiring data at scale.

Our Tech Stack: Ruby on Rails, JavaScript, TypeScript, React.

Requirements: - 5+ years of experience as a product-focused full-stack software engineer; 1+ year of people management experience. - Deep understanding of RESTful API design principles and distributed system architecture - Demonstrated proficiency in modern programming languages/frameworks (preferably Ruby/Rails, JS, TS, React) - Demonstrated ability to manage cross functional collaboration with Product and Design - Demonstrated knowledge of SDLC fundamentals

Compensation: National pay range: $142,700 - $214,100 CAD

If you're interested, please apply directly through the job posting: https://grnh.se/jmara1dr1us

I'm building Diamond Hands Fantasy — think fantasy sports meets Wall Street. Users draft S&P 500, Nasdaq-100, and DJIA stocks into C-Suite roster positions (CEO, CFO, COO, etc.) and compete head-to-head in weekly matchups based on actual market performance. Same skill-game legal framework as DraftKings/FanDuel. Incorporated Delaware C-Corp, fully spec'd, prototype built, GTM ready. Looking for a CTO co-founder who can own the technical stack end-to-end. Stack is Next.js, React Native, Supabase, Postgres, Redis, BullMQ, Polygon.io for live market data. Ideal background: fintech, gaming, or real-money platforms. Product ownership mindset over contractor mindset. Equity: meaningful co-founder stake with standard vesting. Based in NYC. Remote-friendly for the right person. Reply here or email [diamondhandsfantasy@gmail.com].

Lucia Protocol Remote | Full time | https://www.luciaprotocol.com/

Lucia Protocol is at the forefront of AI-driven data infrastructure, building the future of decentralized ad attribution. We are redefining how brands, publishers, and communities leverage Web3 to accurately track, attribute, and reward digital actions. Our team is innovating where AI, blockchain, and decentralized ecosystems intersect to power transparent and efficient ad measurement solutions.

We are hiring for:

- Chief Technical Officer (CTO): https://www.indeed.com/job/chief-technology-officer-cto-d625...

- Senior ML Engineer https://www.indeed.com/job/sr-ml-engineer-06c5b4f007aac3db

Rainbow Insurance (https://www.userainbow.com) | Backend Software Engineer | Full Time | Hybrid (2 days on-site in San Francisco) | Golang Rainbow is a tech-enabled small-business insurer. We built software that underwrites small businesses (starting with restaurants) and evaluates them against various risks to provide them with insurance policies. We've been live for only 2.5 years but already one of the top insurers of restaurants in the US. We are looking for an experienced software engineer to join our team and help us grow and innovate. We've raised around $20m to date with a series A around end of 2024. We've grown massively over the past year. Most of our problems we're currently working on are about building tech as we expand out to other categories of insurance and insuring other types of businesses.

Job Requirements:

- 5+ years of professional experience as a software engineer

- Experience in fintech is an optional but major plus

- Familiarity with our tech stack (Golang, React through a Next.js app, GraphQL, PostgreSQL) is beneficial but not required

Why You’d Enjoy Working with Us:

- You're joining a small fast paced team: 12 engineers, 40 people total

- Direct impact on solving real-world problems for small businesses

- Hybrid work model with 2 days on-site in SF

- Competitive salary and benefits

If interested, please reach out at hn@userainbow.com with your resume attached to the email.

You can also visit our site to learn more: https://www.userainbow.com/about

VozParking | Founding Engineer / Technical Cofounder | Netherlands / Europe / REMOTE | Equity

VozParking is an early-stage mobility startup focused on helping drivers make faster, clearer parking decisions under pressure.

This is not meant to replace Google Maps or Waze. It’s a parking decision layer that sits on top of navigation tools, with voice as an important part of the interaction model to reduce phone use while driving.

Current stage:

early prototype exists core product logic is clear next milestone is a usable, testable MVP

Looking for:

a genuinely hands-on founding engineer / technical cofounder strong builder mindset comfortable across product + engineering interested in real-world interaction, systems, and usability challenges wants to build long-term, not freelance or advisory-only

If aligned, email: danielceo@vozparking.com Please include a short intro, what you’ve built, and how you like to work in early-stage products.

Matcha | REMOTE (Europe / Canada / US) | Full-time | https://matcha.fm

Building Matcha and putting together a founding team.

If you want to be close to the product, have real ownership, and work with people who care about what they ship — read on.

Full-Stack / Frontend / AI Engineer — https://matcha.fm/apply/fse

Designer — https://matcha.fm/apply/design

Product — https://matcha.fm/apply/product

Growth / GTM / Marketing — https://matcha.fm/apply/marketing

Remote

Farmer Sam LLC | Multiple Roles | Remote | Equity/Founding Team

We build AI-powered agricultural tools through the Claude Partner Network. Team holds CCA certification. Looking for people who want founding equity in a small, remote-first company doing real work at the intersection of agtech and LLMs.

Roles: Full-Stack Engineer, ML/AI Engineer, Agricultural Data Scientist, Business Development

Stack: Claude API, Python, React, geospatial data pipelines.

https://www.farmersamllc.com | hello@farmersamllc.com

Confluence | hourly consultant | remote

Research analyst (non-technical) looking for someone to help bridge the gap on some of the more technical aspects on neoclouds. Interested in views from a customer perspective as well as operators. Part time hourly work (US$100-300/hr). Happy to be flexile on timing around a primary job.

quinn at confluenceresearch dot com dot au

Deepline | NYC (ONSITE) | Founding Full-stack Engineers and Forward Deployed Engineers | $160k–$220k + meaningful equity

User interfaces are dead. Knowledge workers will exclusively work through agent interfaces like Claude Code/Cowork. We've built the interface layer to enable that.

One API that unifies hundreds of data providers, workflows, and data infrastructure to agents like Claude Code. We shipped our mvp last month; hundreds of early adopters signed up and are using Deepline.

You’d build core platform: agent-facing abstractions, infrastructure, UI. TypeScript/Python/Next.js/Postgres. $3.3M raised from Lerer Hippeau + Looker founding team. Technical founding team from Uber, Lyft, Capchase, MIT Lincoln Lab, Waterloo.

https://code.deepline.com/careers

Rad AI | We're rapidly staffing-up our new office in San Francisco at 2nd & Market! Empowering physicians with best-in-class AI radiology solutions to save time, reduce burnout, and improve patient care. Series C with tremendous momentum.

High-priority technical roles in Engineering Leadership, Senior Cybersecurity Analyst, Infrastructure Engineering, Head of Continuity Product, and several more roles.

See all open roles and apply here >> https://www.radai.com/careers?utm_source=W29wy29rlJ

All currently open roles are on-site San Francisco.

Engineering Square | Business Development Representative | Remote (West Coast hours) | Full-Time | $55K-$70K + OTE $85K-$100K + Equity

Our client, a Series A legal tech startup ($9.1M raised from Foundry Group + top law firms), is hiring 6 BDRs to join their sales team.

You'll prospect outbound via phone, email, and LinkedIn to generate new opportunities, run discovery calls, and partner with AEs. Clear path to a closing AE role.

Looking for: 1-2 years outbound B2B SaaS sales experience, strong phone presence, 60-80+ dials/day track record, CRM familiarity (HubSpot, ZoomInfo). Legal tech, fintech, compliance, or HR tech background is a plus.

No visa sponsorship.

Apply: saikumar@engineeringsquare.us (subject: "BDR — Legal Tech — [Your Name]")

HostGPO | Full-time | Remote | $200,000 - $240,000 / yr + equity

We’re looking for a Lead Engineer to help shape the future of HostGPO’s platform, data systems, and technical direction. This person will be a senior builder and technical leader - someone who can architect and ship scalable systems, navigate messy real-world business logic, and partner across the organization to solve problems.

- Strong full-stack fluency, with particular preference for Python, JavaScript/TypeScript, and React - Experience building and scaling backend systems, APIs, data platforms, and large-scale web applications - Experience with GraphQL and modern application architecture

Apply here on LinkedIn: https://lnkd.in/ezEQr_FX

Korva | Founding Engineer | New York City | ONSITE

Korva is building the AI-native operating system for health plan administration. Self-funded health plans cover 100M+ Americans, yet third-party administrators (TPAs) run them on manual processes and legacy software. We're rebuilding that back office with AI agents that automate high-stakes operational workflows. Getting this right matters — millions of Americans' coverage depends on it.

Founded by UC Berkeley alums with deep experience in healthcare data, payer integrations, and provider workflows. Pre-seed, well-funded, NYC-based.

This is a broad founding engineer role: you'll design core platform infrastructure from scratch, build and ship AI agents for TPA operations, own systems end-to-end, and at times embed directly with customers to turn operational knowledge into product. You'll work closely with the founders and shape both the roadmap and the engineering culture.

We're looking for someone with 2–5 years of SWE experience who writes clean, reliable code, has strong product instincts, uses AI as a core part of their workflow, and is comfortable in the ambiguity of an early-stage company. Interest in healthcare or complex regulated industries is a plus—domain expertise not required on day one.

Email hn ~at~ korva ~dot~ health with a bit about yourself and what excites you about this.

Sorry, no visa sponsorship at this time.

Digital Vitamins | Senior Electron.js developer | Remote (EU) | Full-time

Digital Vitamins is building a secure messaging application on top of Electron.js and React.js. Looking for developers with relevant experience. Send your CV to ilya.lopukhin at 1rstwap.com

I3W | https://i3w.ai/ | Multiple roles | Noida (On site) | Full time

I3W (Infinity Intelligence Innovation Wing) builds intelligent and scalable products across AI, design, and engineering, focused on solving real world problems with speed, clarity, and impact.

We are hiring for the following roles:

[1] Web Frontend Engineer – Noida (On site) [2] Backend Developer – Noida (On site) [3] AI/ML Engineer – Noida (On site) [4] Gaming Developer – Noida (On site)

Location: Noida, Sector 62 | Full time, On site | Monday to Friday | Minimum 2 years experience Immediate joiners preferred. Please apply only if open to working from the office.

Apply here: https://forms.gle/bN4Pfp62rsJGzok98 Send your CV to: bharat@i3w.ai CC: achal.tiwari@infinitylearn.com

LinkedIn: https://www.linkedin.com/in/bharat--agarwal/ Website: https://i3w.ai/

Please note that submission of the application form is mandatory to be considered for any role.

If you want to build fast, take ownership, and work on real products at scale, we would like to hear from you.