At CloudX (https://cloudx.io) we’re building a new supply-side advertising platform for mobile publishers. Yes, it's ads, and yes, there's AI involved, so stop reading here if that's not interesting to you.

It's a gnarly infra problem with huge scale, combined with an interesting product space that we think legitimately benefits from tasteful AI automation. We're doing cool things with Nitro Enclaves to prove that our auctions are fair. And our founding team have done this before with great success, first at MoPub (sold to Twitter) and MAX (sold to AppLovin).

We're hiring (all remote) for:

- Senior Fullstack Engineer https://jobs.gem.com/cloudx/am9icg9zddogum5thf3forqb1eeupfqx

- Senior Infrastructure Engineer https://jobs.gem.com/cloudx/am9icg9zddo4vl4a1secc7sdqf8zyiqr

- Senior Android SDK Engineer https://jobs.gem.com/cloudx/am9icg9zddqpawu1cxr3pmeuutidlii6

- Senior iOS SDK Engineer https://jobs.gem.com/cloudx/am9icg9zddpoy3qmt1flsou4gkwtwwtz

Our philosophy is to keep the team small, well-paid, and productive. We deploy every day and our monorepo CI suite takes about a minute to pass.

The best way to apply is directly through those jobs pages but if you have other questions you're welcome to email me at Email is hidden. I always post here on HN because it's where I got my career started back in highschool; I will personally make sure you get a response if you apply.

Hi HN! CrossnoKaye is a Series C startup tackling climate change by transforming the heavy industrial sector. Our platform uses real-time optimization, advanced modeling, and modern cloud infrastructure to deliver 40% average energy savings and megaton-scale emissions cuts across industrial facilities. https://crossnokaye.com/

We’re hiring for 3 roles and looking for builders who want their work to have real-world climate impact:

1. Sr. Software Engineer - Control Systems |REMOTE (US)| This role would have the opportunity to support our control systems infrastructure initiative, which involves real-time control strategies, secure cloud communication, and large-scale system performance, all built in Go with AWS and Kubernetes. Deep Golang experience is a must-have.

2. Sr. Software Engineer – App Team | REMOTE (US)| In this role, you'd be partnering directly with physicists and data scientists on our Applied Science team to productionize cutting-edge research in physics simulation and optimization algorithms. Must have strong proficiency in Python and its data science ecosystem (e.g., numpy, pandas).

3. Sr. Software Engineer in Test | REMOTE (US)| We’re looking for a hands-on engineer who loves Python, backend frameworks, and automated testing. You’ll design and implement test frameworks for our ATLAS and Energy AI platforms, ensuring reliability across distributed, cloud-based systems. Must have strong proficiency in Python.

Interested? Email our team: Email is hidden -- Please include a resume and the title of the role you're interested in within the subject line.

Thank you & I look forward to hearing from you!

Continua AI | https://continua.ai | Multiple Roles | ONSITE (NYC/Seattle) | Full-time | Salary + Equity

At Continua (http://continua.ai/), we're on our way to solving Social AI, and we're expanding our team! We've built an AI agent that users can invite into group conversations to make planning, coordination, and information retrieval effortless. We're social creatures and it just seemed to us a huge opportunity to bring AI into group settings. We've seen strong retention over the last few months and want you to help us bring our product to the next level. Try adding our agent at http://continua.ai/ to group chats and kick the tires! https://techcrunch.com/2025/08/12/google-vet-raises-8m-for-c...

I’m David (https://www.linkedin.com/in/dpetrou/), the founder and CEO. Before starting Continua, I was a Distinguished Software Engineer at Google. We’re backed by top-tier VCs (like GV) and incredible angel investors (like Jeff Dean). Our team is a fantastic bunch (http://continua.ai/team) of accomplished engineers and researchers from Google, Disney, and several AI startups. We're pretty clued in on the technology side and have a strong vision of how the transformative technology of the last few years along with our own secret sauce (not just a ChatGPT wrapper) can help a huge number of people.

We’re hiring systems and ML engineers: https://jobs.ashbyhq.com/continua/

You'll work on building and improving the best LLM group chat experience there is, including fine-tuning models to boost conversational quality and improve scalability and identifying novel ways to build a "memory" which leads to a personalized and unique experience for our users. You understand what it means to work at a fast-moving startup.

Oh, and we maintain a vibrant blog, including items of technical interest, at http://blog.continua.ai/. Check it out! :)

Sage Bionetworks (https://sagebionetworks.org/) | Principal SWE | Java, Python, TypeScript, Node.js | Remote (US) | Full time

Sage Bionetworks, a nonprofit focused on open science and accelerating biomedical research, is hiring a Principal Backend Research Software Engineer (US-remote). We build platforms like Synapse.org that enable global scientific communities to responsibly share data and generate insights, and we value people who thrive in collaborative, interdisciplinary environments.

In this role, you’ll lead architecture and backend development across our platforms. You’ll have broad autonomy to shape system design, prototype new capabilities, and work closely with scientists and product teams on tools that support cloud-based data workflows, large-scale computation, and emerging AI/ML use cases. Strong production engineering experience, deep Java skills, and comfort with cloud environments, CI/CD practices, and containerized systems are key; interest in scientific or data-driven applications is a plus.

Full post: https://sagebionetworks.org/careers/software-engineer-backen... Email: Email is hidden

AllSpice.io | Senior Software Engineer (Automation / CI/CD) | Python/Go/TypeScript | Boston / San Francisco / REMOTE (US) | Full-time

AllSpice is building GitHub/GitLab + CI/CD + Copilot for hardware engineering teams (smart vehicles, rockets, robotics, medical devices, IoT). We recently raised our Series A and are hiring a senior engineer to own major components of AllSpice Actions, our automation engine for circuit design. Work spans backend (Go), Python automations, API integrations, and a Vue/TypeScript UI. You’ll help improve our platform, build integrations and help define hardware DevOps. Stack: Go, Python, TypeScript/Vue, Rust, Postgres, AWS, Docker Swarm, Terraform, GitHub Actions, Gitea. Hybrid in Boston/SF or Remote (US). Small, senior team; high ownership; salary + equity + full benefits.

Apply: https://allspice.io/careers

* * *

Rippling | Actively hiring across SF, NY, or SEA| ONSITE/HYBRID (3 days M/Tu/Th, non-negotiable)| Base + Equity (RSUs), pay range included in all job posts Rippling (YC W17) is a unified workforce management platform. We bring together HR, IT, and Finance in a single system to help businesses manage all their operations—from payroll and benefits to computers and corporate cards—globally. We're rapidly expanding beyond workforce management and have other verticals in active development.

We value engineers who are energized by, and thrive in, a fast-paced, high ownership environment. We have many high priority roles open across the org. Right now we're making major investments in growing the Financial Products & Spend Management engineering vertical.

IC Roles SWE 2 - Financial Products (Toronto) - https://ats.rippling.com/rippling/jobs/844d2bdf-d672-46d9-a7... Senior Eng - Financial Products - https://ats.rippling.com/rippling/jobs/1f81bd71-a3b5-4b91-aa... Staff Eng - Global Payroll - https://ats.rippling.com/rippling/jobs/cf48e126-e063-4163-9f... Sr Staff Eng - Global Payroll - https://ats.rippling.com/rippling/jobs/d3c8bed0-d988-4765-b8...

Engineering Management: Eng Manager - Global Payroll (Toronto) - https://ats.rippling.com/rippling/jobs/e43448da-6a87-45b9-a9... Sr Eng Manager - Financial Platform - https://ats.rippling.com/rippling/jobs/a9658fef-88df-4dad-a4... Sr Director of Eng - Payroll Platform - https://ats.rippling.com/rippling/jobs/2d85be1f-9538-49d3-b1...

Rippling Careers Page - https://www.rippling.com/en-gb/careers/open-roles

Veridise | https://veridise.com | REMOTE | Full Time

About Veridise: Veridise performs security audits for smart contracts, zero-knowledge circuits, blockchain implementations, key management services, and other off-chain services like relayers, bridges, wallet integrations, and more. Additionally, many members of the Veridise team research and develop modern security tools designed to tackle the ever-changing landscape of blockchain development, providing novel and automated insights into the security of smart contracts and zero-knowledge circuits.

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Frontend engineer position: Veridise is seeking a skilled front-end software engineer who will be responsible for developing and maintaining a front-end for a SaaS platform that provides security and code review tools. This individual will work closely with backend engineers, static analysis tool engineers, and security analysts to implement features such as collaborative code review, vulnerability triage interfaces, and interactive visualizations of compiler data structures. In addition, this individual will be responsible for collecting feedback from customers to determine how interfaces can be improved to better integrate into their workflow.

Application link:

- https://veridise.com/careers/veridise-careers-frontend-engin...

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Security analyst position: Veridise is seeking a highly skilled and motivated security analyst. The ideal candidate will have a strong background in computer science, possess advanced technical expertise, and demonstrate a deep understanding of security principles. This role involves identifying and mitigating security vulnerabilities through manual code review, running cutting-edge security tools and analyzing their results, actively staying up-to-date on emerging security threats, and learning to audit in new and exciting technologies. Application link:

- https://veridise.com/careers/veridise-careers-lead-security-...

- https://veridise.com/careers/veridise-careers-security-analy...

ChainSecurity | Blockchain Security Engineer | Full-time | INTERNS , HYBRID/REMOTE, Zurich, Switzerland | VISA possible | https://chainsecurity.com/

ChainSecurity is a young and innovative cybersecurity company that operates in the blockchain and cryptocurrency space. Our mission is to make the blockchain space secure and trustworthy for people, companies, and governments alike. We are proud of our security experts from the renowned universities ETH Zurich, EPFL Lausanne and others. We are trusted by 100+ blockchain companies and established corporations with security audits and services. We have secured complex systems for top blockchain clients, such as decentralized finance (DeFi) projects, and multinational organizations, such as banks and industrial consortia.

A ChainSecurity Auditor will review the most complex blockchain projects to find vulnerabilities which no-one else can. By using state of the art tools, expert knowledge and a deep understanding of the fundamentals, we secure projects handling billions, often forming the foundation in the new paradigm of an open financial system.

Your Responsibilities:

* Work directly with the developers of the most successful teams in the blockchain industry to audit their code and secure their products

* Contribute to our security tools and create new ones in collaboration with our internal research team

* Conduct security research and publish your findings

Requirements:

* Strong background in software engineering, focused on security relevant areas and most importantly being able to reason about complex code

* Experience with penetration testing, vulnerability scanning, threat modeling or similar is a plus

* Good knowledge of cryptography

* Proficiency with Linux and Git

* Good written communication skills

* Fluent in OOP programming language

Bonus Points:

* Formal Verification, White Box, Vulnerability Scanning

* Solid Blockchain Knowledge

* Consensus Algorithms

Join us here: https://www.chainsecurity.com/jobs/blockchain-security-engin...

Questions about the role? Contact: Email is hidden

Zeno Group | Hybrid | US - NYC

Hello everyone! I’m on the lookout for an SVP of AI & Tech Operations to join my team at Zeno Group. https://www.zenogroup.com

We're a global, integrated communications agency, and one of PR Week's Best Places To Work 2025!

• I’m shaping the technology landscape at Zeno from the ground up, which means juggling everything from procurement to infrastructure to education, and need someone who can help bring order to the chaos. We have a ton of amazing and passionate people and I (still!) only have two hands.

• What you'll do is wear many hats, and so adaptability is 100% your most important attribute, along with:

- Being a diplomat between Zeno and our sister companies

- Leading AI+technology education and literacy programs

- Performing discovery for and designing workflow automation

- Convincing creatives that AI won't steal their Cannes Lions

- Exploring turning random AI experiments into useful tools

- Keeping up with AI exploration and experimentation because it’s something you do already

• You need to be comfortable building with duct tape while executives ask why it's not done yet. Agency experience helps but isn't required; what matters is you can handle 72-hour deadlines, massive egos, and the phrase "the client changed their mind."

• You also don’t buy the hype, and can cut through tech industry bullshit like a hot knife through AI slop. Being a practical cynic is a strength—you want to believe.

• If you've successfully implemented some cool AI heat at scale and can explain it to people who still print emails, let's talk.

• Hybrid role, based in NYC. Big on cultural fit. While this is not a client-facing role, some occasional face time with clients is expected.

Here's the giant link to apply:

https://djeholdings.wd5.myworkdayjobs.com/zenocareers/job/ne...