Lead iOS Engineer @ Moongate | Native iOS/Swift | Full-time | Remote (PST overlap preferred)

Moongate is building the world’s leading sound therapy app, helping people sleep better, get focused, and relieve stress through impactful sound therapy experiences. We're fully bootstrapped and profitable, and we're focused on scaling to eight-figure ARR while keeping the team small and nimble.

My cofounder and I are both app engineers with 15 years of experience each, and we're looking for another senior engineer to take the lead on the development of our flagship iOS app. You'll be employee #4 and our first engineering hire, and you'll become the primary contributor to our native iOS (Swift + SwiftUI) codebase.

If you've ever wanted to launch your own subscription-based app business, this is a great opportunity to see how it's done at scale, while also driving our next 10x in growth (and having an equity stake in it).

For more info and how to apply, visit our listing https://www.notion.so/Lead-iOS-Engineer-Moongate-2c011b9163e...

My co-founder and I are personally reading and responding to all inquiries

Littlebird | Global Remote | Multiple roles: Sr AI Eng, React/RN, Product Design | https://littlebird.ai/careers

Littlebird is a smarter, more personal AI assistant (Mac + Android) that builds an understanding of your world. We now have a few thousand customers and growing quickly, but there is still a lot to build. We're a global team of PhD's, OSS hackers, and productivity fans who want to make utilizing LLM's easy and accessible to anyone. If you get excited about cross-platform AI tools, conversational inference, and experimental graph systems - then see below!

Brand new roles to join the team:

Sr. / Staff AI Engineer (Systems and Arch) - next-gen memory + retrieval, python, Node, Rust

AI Engineer (Agent Intelligence & Retrieval) - conversational AI, agentic reasoning, RAG, python

Sr. React / RN Engineer - clean UI and fast data collection across mobile + web

Product Designer - design AI features + components across, desktop mobile, and web, JS/HTML/CSS

Swift Engineer - all things Swift, concurrency, iOS and MacOS

Full job descriptions and apply to: https://littlebird.ai/careers

Return | REMOTE | Software engineer backend (Go/Golang) | Full-time

Return (https://return.energy) is hiring a software engineer who will work on platforms that accelerate the transition to carbon-free energy. Return’s main activity is building and operating industrial-size Battery Energy Storage Systems. Our operations are located in the Netherlands, Germany, Belgium, and Spain. You will be making a measurable (country-level) impact on the transition to renewable energy. Return recently raised €300M to support its growth.

While we employ over 100 people, Return’s technical team is still small (13 people). Our platform automates processes in energy storage, monitoring, market optimization, sales, project management, procurement, construction, and customer service.

During the first three years of operation, we laid the foundation for our platforms, and we are ready to scale up. This is why we are looking for an experienced software engineer.

Your primary focus will be to further develop our battery virtualization platform that enables our customers to use slices of battery capacity distributed across our fleet of industrial-scale batteries.

Our tech stack/toolset is straightforward: Go, Python, Ruby, PostgreSQL, TigerData, dbt, Dagster, Grafana, Terraform, self-hosted + cloud compute. We tend to keep meetings to a minimum in order to provide at least five hours of uninterrupted coding time per day. We practice code reviews and apply automated and manual testing. Our web apps and platforms are often deployed multiple times per day.

Return has offices in Amsterdam, Berlin, Brussels, Hamburg, Munich, Madrid, and Stuttgart. We are very much open to working remotely as long as you live in the EU. Our hiring process is swift but thorough: a brief call to get acquainted and discuss financials, followed by one or more technical interviews, and a paid visit to Amsterdam to meet the team.

The tech team members have co-founded several companies and/or have experience with remote development teams since 2008. They will personally help you through most of the recruiting process (there is no recruiter involved).

Apply here: https://jobs.polymer.co/return/37860

Pushscroll | Full-Stack Mobile Engineer (KMP) | REMOTE (GMT-3 to GMT+4)

Screen-time app that makes you do push-ups before you can scroll addictive apps. 350k+ users.

Looking for someone strong in Kotlin Multiplatform + Compose Multiplatform + Swift/SwiftUI who ships fast and isn't afraid of platform-specific APIs (Screen Time on iOS, Accessibility/UsageStats on Android).

Stack: Supabase (auth/DB/edge functions), Superwall, Amplitude, MediaPipe for pose detection. We use AI coding tools quite a bit and expect you to as well. Good design sense matters - you'll be translating Figma → production UI.

Small team, work directly with founders, long-term role with a lot of impact. Reach out: contact@pushscroll.com

Joby | Bay Area | Full-Time

Imagine a piloted air taxi that takes off vertically, then quietly carries you and your fellow passengers over the congested city streets below, enabling you to spend more time with the people and places that matter most.

We are looking for an experienced and motivated Mobile/Full stack Senior Software to join our Air Taxi Systems team. Most of our apps are built with SwiftUI, TCA, and GraphQL. Our backend is a mix of Java, Rust, and Swift using Federated GraphQL.

https://careers-jobyaviation.icims.com/jobs/4324/senior-soft...

We are also hiring a variety of engineers, technicians, and corporate roles: https://www.jobyaviation.com/careers/

Musa — Mobile Engineer (iOS/Android) — Remote (Americas)

Musa is a mobile app helping women understand their hormonal health through a cycle tracker with personalization and a small companion character. Thousands use it daily.

We’re a small team, ship fast, and follow a Shape Up-style process. Low meetings, high ownership.

You will - Own our iOS and Android apps

- Shape and build features end to end

- Ship often to a user base that shares the product organically

- Tackle challenges in personalization (AI), performance and UI delight

You

- Enjoy building and care about quality

- Like autonomy and product thinking

- Have strong Swift/Kotlin experience

Links Role: https://www.notion.so/Mobile-Senior-Software-Engineer-L5-2b1...

App: https://apps.apple.com/us/app/musa-period-self-care-pet/id65...

Chat: https://calendar.app.google/4mYzMx7tKRbCNosg8

SpruceID (YC W21) | REMOTE (US-Based Preferred) | Full-Time | spruceid.com

Spruce lets users control their data across the web. Instead of users logging into platforms, we believe platforms should request to access data vaults controlled by users.

The demand for trusted digital ID is accelerating as AI deepfakes begin to destroy most of the ways we use to verify identity today. How private or secure is it to hold your driver's license or passport up to a webcam to get a bank account? Was it ever private or secure? Stable diffusion can break so much of this already. Society will need trusted digital IDs and credentials. Our mission is to allow them to be controlled by individuals, with safeguards to prevent descents into surveillance states and checkpoint societies.

We are the main implementers of category-defining initiatives such as the digital ID program for the California DMV, and the verifiable digital credentials program in Utah. We are private sector participants in NIST's National Cyber Security of Excellence initiative for privacy-preserving digital ID.

We are hiring skilled engineers who care about making a real impact in improving public services, digital autonomy, and user privacy for the world. We work closely with public sector agencies, and have high regard for public servants. We have a strong engineering and customer-oriented culture, and are not simply a SaaS product or AI wrapper. Our roles are not for the faint of heart: you will be expected to work hard and learn a lot in this role.

Our engineers are ambitious to get outcomes for our customers and their constituents. On any given day, they may write great Rust/C#/TypeScript, deal with mainframe dumps, read policy documents, respond to technical RFIs/RFPs, manage on-prem environments, implement new NFC + Bluetooth protocols in Swift/Kotlin, create CI/CD processes that enforce W3C accessibility guidelines and i18n requirements, rewrite lost specs from disassembled binaries, figure out stablecoin payments, and design new protections for public key infrastructure. It is a team effort, and people with T-shirt shaped skills are able to collaborate and learn a ton from each other every day.

We are interested in candidates who want to be proud of the meaningful impact they make for society, even if it takes time to get right. This is not the right job for someone who wants to "join a cool new AI startup" that implodes or exits in under a year.

See our roles here: https://jobs.lever.co/sprucesystems/

Beacon AI | San Carlos, CA | Hybrid (On-Site) | Full-Time | www.beaconai.co Beacon AI builds intelligent systems that make aviation safer and more autonomous. We’ve completed multiple DoD programs and are expanding our team with exceptional technical leaders to push the boundaries of human-machine collaboration in the cockpit.

At Beacon, you will lead by example, mentoring and growing a small team of talented engineers (typically 1–2 to start) while staying hands-on in design and execution. You’ll help shape critical systems that advance aviation safety and autonomy, working alongside a team that values effort, creativity, and accountability.

We’re hiring Lead Engineers with 5-9 YOE who love solving complex problems. At Beacon, you’ll own your work end-to-end, from prototype to deployment, and literally see your code take flight in real world aviation environments! Roles:

++ Lead iOS Engineer [Tech Stack: Swift, SwiftUI, UIKit, Mapbox]

++ Lead Infra/Backend Engineer [Tech Stack: AWS]

++ Lead WebApp/FrontEnd Engineer [Tech Stack: Python, Typescript, React]

++ Lead Autonomy/Robotics Engineer [Tech Stack: C++, Python, iOT]

++ Lead Security Software Engineer [Skills: Ability to perform hands-on security engineering tasks, CMMC Compliance Knowledge]

Join us at beaconai.co/careers. Mention in the application that you saw our post on HN.