Cantina | Senior iOS Engineer | Hybrid (LA or Bay Area, California) | Full-Time

Cantina, founded by Sean Parker, is the first social AI platform, empowering users to create lifelike AI characters that interact across the web. Work on building cutting-edge AI bot platforms for our social app. Develop innovative features like AI-generated media, text-to-speech, and voice interactions.

Stack: Swift, UIKit, Objective-C, AVFoundation, custom graphics, UI development, and backend interaction.

Email: Email is hidden to schedule a chat.

Apply at: https://jobs.ashbyhq.com/cantina/72fc1228-c538-41f6-a7ee-c54...

LabAMI | iOS Engineer | Remote (US timezones) | Equity Only | Full time | https://labami.ai

Help Us Shape the Future of Music Education

LabAMI’s mission is to harness technology to make learning music more accessible, intuitive, and meaningful for everyone, while keeping the essential human touch at its core. We empower teachers to expand their impact, help students and parents chart inspiring learning journeys, and connect a global community of musicians, educators, and enthusiasts.

As part of the founding team, you’ll take ownership of our evolving iOS app, collaborating closely with the founders to drive product vision and feature development. You’ll play a key role in shaping an engaging, community-driven platform that supports both educators and learners. As an early team member, your voice and skills will directly influence our product, culture, and company trajectory.

What We’re Looking For

- Strong skills in at least one programming language

- Passion for our mission and excitement to work in an early-stage team

- Ownership mindset and ability to thrive in a collaborative, fast-paced environment

- Preferred: iOS experience (Swift/SwiftUI/UIKit/etc.); shipped consumer apps

This is a remote, equity-only role with a mission-driven, flexible team that cares deeply about music and technology.

Apply here! https://forms.gle/tmd8ndunyfhkpdpk7

Weave Bio | https://www.weave.bio/ | Remote (US timezones) | Backend Engineer | Full-time

We're building the first AI-enabled regulatory platform for drug development. The existing processes to submit regulatory submissions to government bodies are extremely time consuming and expensive (plus no one likes paperwork). We're building a SaaS platform powered by LLMs to dramtically reduce the time spent producing regulatory documents (97% reduction in current benchmarks).

We're looking for a backend engineer to join our team to work on our backend service, data pipelines, and production LLM capabilities. Apply at https://job-boards.greenhouse.io/weave/jobs/4003308009

We run django + postgres + redis + celery.

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VIAM -- NYC (Hybrid)| Senior/Staff Software Engineer, Infrastructure Engineering | Full-Time | Base + Options + Benefits

Viam helps companies unlock the power of AI, data, and automation in the physical world. We provide a single platform for engineers of all disciplines to solve problems together and build solutions across robotics, climate tech, marine, industrial manufacturing, Food & Beverage, and more. Founded in 2020 by former MongoDB co-founder and CTO Eliot Horowitz.

As a key member of our Infrastructure team, you will contribute to developer tooling used both internally and by external users, support the reliability and performance of our systems across multiple platforms, and play a key role in unblocking our engineers and our customers to ship quickly and confidently.

Any interest? Please apply at https://grnh.se/p2mzkspt4us

Trunk | https://trunk.io | DevRel Engineer / Full Stack Software Engineer II| Senior Platform Engineer Full-Time | Hybrid SF or Remote US or Canada

Trunk is an a16z funded dev tools startup, redefining software development at scale. We aim to solve problems that developers hate by bringing the tools usually built in-house at the best engineering orgs to every development team. We've built 4 products so far and have plans for more:

* Code Quality: a universal linter/formatter, available as a CLI, VSCode extension, and CI check; * Merge Queue: a merge queue, to ensure that PRs are tested in order before they're merged; and * CI Analytics: detects, quarantines, and eliminates flaky tests from your code base. Prevents flakey tests from producing noise and blocking CI. *Flaky Tests: Detect and eliminate Flaky Tests. In 2022, we raised a $25M Series A led by Initialized Capital (Garry Tan) and a16z (Peter Levine)

Our tech stack:

* Frontend: Typescript, React, Redux, Next.js * Backend: Typescript, Node, AWS, CDK, k8s, gRPC * Observability: Prometheus, Grafana, Kiali, Jaeger * CLI: C++20, Bazel * VSCode Extension: Typescript * CI/CD: GitHub Actions * General: GitHub, Slack, Linear, Slite Unlimited PTO (and we all actually take PTO), competitive salary and equity packages! Please apply here: https://trunk.io/jobs

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Estuary | US Based / Remote | Full-time – https://estuary.dev/

Estuary is a VC-backed startup building the next generation of real-time data infrastructure. Our platform, Estuary Flow, combines change data capture (CDC), stream processing, and declarative configuration to unify real-time and batch data movement.

We’re open-source, developer-first, and focused on making data engineering radically simpler.

We’re a small, high-trust team with deep experience in distributed systems, stream processing, and data tooling — and we’re growing.

We’re hiring for:

Senior Backend Engineer (Integrations) – 5+ years of backend engineering experience. Own and scale high-impact systems that power real-time data pipelines. You’ll work on complex integrations with external APIs and databases, improve our internal connector frameworks, and tackle deep challenges in performance, reliability, and developer experience.

Backend Engineer (Integrations) – 2–4 years of backend experience. Help expand and maintain our catalog of real-time data connectors using Python. You’ll work closely with experienced engineers to build and optimize integrations with third-party systems, while deepening your skills in infrastructure and stream processing.

What we’re looking for:

We’re looking for engineers who care about building reliable, maintainable systems and enjoy working with complex APIs and data flows. We value curiosity, clear communication, and a willingness to learn.

Bonus points for experience with CDC tools, open source contributions, or fast-paced startups.

To apply: Email your resume to Email is hidden

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Ageospatial (www.ageospatial.com) | EXCEPTIONAL FOUNDING VIBE CODER / EXCEPTIONAL FOUNDING AI ENGINEER | REMOTE

We are building the world’s most advanced Geospatial AI platform to help public organizations (local, national, intergovernmental) make decisions with real-time location data using AI Agents. Some of the world’s largest organizations are already on our waitlist, and you'll be iterating on their feedback

- This will be the most challenging (but rewarding) build of your life. You’ll be joining a team that delivers at the highest level

- Agentic AI, MCP/A2A/ACP, ACE, Prompt caching, TPM limits, Parallel processing, Memory management, Autoscaling

- Python, SQL, LangChain, AWS, Kubernetes, DuckDB, Next.js, React, WASM, DeckGL

- You think like an architect, execute like a builder and code like AI

- You ship fast, high standards, low ego

- You’re not here for the early startup paycheck, you know the pay is low at the start, instead, you’re in for the long game and care about building the most meaningful product of your career

- We are looking for killers, this will be fun and you’ll be fairly rewarded

(!) If at any point this sounds too intense or competitive, this is not for you

Process: - 10m call --> 30m system design test --> 10m team feeling call - $500 trial week, then $2000/month as a contractor for 3 months. Money scales fast based on how much you help us convert our 80+ solid leads into paying customers by shipping features fast. - After 3 months, you will transition to a Founding Engineer / CTO / Senior Dev role with equity depending on your goals.

--> Email is hidden (subject: “FOUNDING ENGINEER - FIRSTNAME LASTNAME) with CV/LinkedIn & GitHub/portfolio/something you’ve built before that ideally generated revenue --> And common guys don't use AI to write me an long email, just be straightforward