Validity | https://www.validity.com/ | Boston - Remote (US) | Full-time

Validity is a suite of marketing tools used to ensure data quality, drive email performance, and provide advanced campaign analytics to leading brands.

Our Applications team is seeking a Senior Ruby on Rails developer to help expand our product line, improve our existing products, and build the next generation of Validity tools, continuing our mission to provide exceptional support to our growing customer base.

We're looking for someone with: - A strong command of Ruby, Ruby on Rails, JavaScript, and the architecture of large web applications at scale - Experience in taking projects from concept to completion - Strong communication skills; the ability to communicate clearly, effectively, and with empathy both within your team and cross-functionally - A proven track record of writing clean, maintainable, and well-tested code

Apply here: https://validity.applytojob.com/apply/9csl8hgg4r/sr-software...

Plush (Remote – US/Canada) — Founding ML/Search Engineer — $180K–$200K + equity + healthcare

We’re an AI-powered fashion search and styling engine that understands taste — think a stylist that actually gets you. Launched June 2024, now at 25K MAUs and growing fast.

You’ll build the core of our personalization and search systems, combining LLMs, embeddings, and real-time fashion discovery.

We’re looking for someone who:

Has 4+ years of experience in machine learning, search, or recommendation systems

Is authorized to work in the U.S.

Has genuine curiosity about fashion and discovery

Contact: Email is hidden

Location: Bratislava, Slovakia (comfortable with different time zones - partly overlapping etc.)

Remote: Yes

Willing to relocate: No

Technologies: HTML/CSS (SASS, Tailwind), JavaScript (Vanilla, jQuery, React, Next.js, React Native), PHP (WordPress custom theme development with Twig and ACF, Gutenberg editor/Core), Python (Backend/AI/Web Scraping), Web Accessibility, Git, Figma

Resume/CV: https://drive.google.com/file/d/19lg7hblo1dd2ocftt7wdk8rft4p...

Email: Email is hidden

About me: Hi, I’m Giorgi — a Full-Stack Web Developer with around four years of experience in frontend development and about a year in backend and AI-related work. I’ve collaborated in various settings — from freelancing individually to working with teams in digital agency and startup — which helped me develop strong adaptability and teamwork skills. Most of my career has focused on building and maintaining WordPress websites (custom themes, ACF, Twig, Gutenberg), but over the past two years I’ve also been involved in React/Next.js projects. Recently, I’ve taken a growing interest in backend and AI development through my work at Onconest, an AI-powered health startup, where I contribute to both backend and AI implementation. I’m passionate about clean, accessible web experiences — over the last year, I’ve led accessibility improvements for large-scale projects in a US-based digital agency. I’m always eager to learn, improve, and take on new challenges where I can deliver results and make an impact.

Matcha.fm | Full-stack Software Engineer | $140K–$290K + Equity | REMOTE (US/Canada)

Hiring multiple Full-stack Software Engineers

We're building AI agent systems that automate complex multi-step workflows.

Ship production code fast, own projects end-to-end.

Looking for 5+ years experience (or <5 with hackathon wins/founder experience/strong GitHub).

Strong TypeScript/React/Node.js required. Stack: TypeScript, React, Node.js, GraphQL, PostgreSQL, AWS (ECS, RDS, Kafka, ES), Docker, Terraform. Full type safety, monorepo, 100% IaC, per-PR staging environments.

Remote US/Canada/EU if US timezone

Apply: https://matcha.fm/apply/se

Alloy Health: E-Commerce Platform Engineer - Brazil or Columbia (Remote)

Alloy Health is a leading digital health platform providing women with expert, personalized care for perimenopause and menopause. We connect women nationwide with menopause-trained physicians and trusted solutions that support their health, confidence, and well-being.

We’re hiring an E-commerce Platform Engineer to build and optimize the systems behind Alloy’s online customer experience. You’ll develop integrations, services, and platform capabilities that improve conversion, personalization, and growth across our e-commerce ecosystem.

Experience: -Strong proficiency in Node.js and TypeScript, with a proven record of building scalable integrations and services that drive revenue and commerce efficiency. -Deep, hands-on experience with e-commerce platforms (Shopify, commercetools, or similar) and understanding of key metrics (CAC, LTV, conversion rates, attribution models).

Link to apply: https://adr.to/lunywai or email me at joe dot epg at myalloy dot com

CEF AI | AI Innovator & Principal Software Engineer | Full Time | San Francisco (hybrid, remote-first) | AI Innovator: $100k–$200k + equity | Principal SWE: $80k–$150k + equity | AI Innovator: https://linkly.link/2kooz | Principal SWE: https://linkly.link/2kop6

CEF AI builds an AI-first data automation platform for secure, decentralized orchestration of agents that compute directly on encrypted data streams. We’re shipping original systems (not wrappers), with multiple tuned models (CV, NLP, LLMs) and a next-gen multi-agent data infrastructure. Small team, high ownership, low bureaucracy.

What you’ll do

AI Innovator: Prototype and ship production AI features fast; extend our multi-agent orchestration; design private/sovereign data pipelines and dynamic indexing; collaborate tightly with founders to turn research into product.

Principal SWE: Own core platform architecture; design and scale distributed backends/APIs; build great DX (SDKs/CLI); lead reviews/mentorship; drive 0→1 projects with strong reliability and observability.

You might be a fit if you have

A track record taking systems from concept to scale and to revenue.

Deep backend/systems skill (Go/Rust/Kotlin or similar); strong CI/CD/testing discipline.

Experience with distributed, real-time data infra; privacy/security minded.

Hands-on AI product chops (CV, NLP, LLMs/agents) and bias to build/iterate quickly.

Clear communication, product intuition, and comfort working directly with founders.

Apply via the role links above.

Deputy Director of AI Engineering | Ministry of Justice, UK Government | London/Cardiff

Help lead a world-class engineering team, delivering meaningful change across prisons, probation and the courts. Learn more and apply here - https://jobs.justice.gov.uk/careers/jobdetail/11367-deputy-d....

Any questions, ping Email is hidden dot uk

Tufalabs | COO & Senior research/engineers | Full Time | Zurich, Onsite | 100-130k CHF | https://tufalabs.ai/

Tufalabs is an independent AI research lab in Zurich, focused on high-impact academic-style AI research and large-scale LLM development. We care about compute (currently, 6× DGX B200, 2× NVL72 GB200 incoming). Our mission is to push the frontier of AI science while open-sourcing results and building the engineering muscle to pre- and post-train cutting-edge language models. The ultimate goal is automating AI research, while keeping in mind AI alignment and safety. The ultimate goal is to make sure AI goes well for humanity.

I am looking for a COO to help scale from ~10 to ~15 people.

Ideally you care about AI research, you are excited about the idea of helping us move faster, you like to keep red-tape low, you are a technical person who can create automated processes, and have experience owning and running operations at a startup.

We are also open to senior engineers and researchers, comp negotiable

If interested, email me at benjamin at tufalabs.ai

HomeVision | Multiple Roles - Eng, SRE, Analytics | Hybrid SF & Remote | Full-Time | $100k-$220k + equity

We have three open roles:

- Engineer - Hybrid SFO I'm looking for an junior-to-senior software engineer to work with me (CTO) directly. Our systems process millions of pages of documents a month for the mortgage industry. We work with some of the largest lenders in the country and are at the forefront of applying LLMs and other multi-modal models in this industry.

New-grad and junior engineers particularly encouraged to apply. Looking for people who are motivated to write good code with a good mix of practicality and aesthetics.

- SRE - US Remote (SFO or Seattle preferred) - This is a broad role on the platform team including AWS infra w/terraform, software engineering, and IT

- Analytics Engineer - US Remote (SFO or Seattle preferred) - Another broad role that includes managing the data warehouse, building durable and ad-hoc reports in sql and python, and doing deep analysis.

Please apply here: https://jobs.ashbyhq.com/homevision/a3f79d43-5d9e-46bf-a43f-...

Ditto | Product Designer | Remote (US/Canada) | $140-200K + early team member equity

Ditto helps teams manage their copy from design to production with a single source of truth. Over 3600 teams (from Fortune 500 companies to startups!) currently use Ditto.

We're hiring our second product designer to help to define and design our core product, from strategy to execution. As the second designer on our team, you’ll have an outsized impact on defining not only what Ditto is and how it works, but what we do next.

Ditto is a design-driven company. Our design function has high ownership around identifying and shaping problem spaces, exploring solutions, and helping to drive implementation. We don’t have a product function—instead, both design and engineering own the product lens. We think this is critical for Ditto’s product, which used by design and engineering teams in their day-by-day workflows.

More info and to apply: https://www.dittowords.com/careers/product-designer