NetBird | Berlin, Germany (or remote, CET/CEST overlap) | Full-time https://netbird.io/careers NetBird is open source networking and access control WireGuard-based overlay networks with zero-config peer-to-peer connectivity. Open source, built in Europe, used by thousands of teams worldwide. We're a small and growing team going up against (and working with) the incumbents in network security. Post Series A.

- Engineering Manager : You will take a huge part in leading and scaling our engineering org. Unblocking, scaling, hiring, you'll still read code and hold technical opinions that impact the product. We're not looking for a pure people manager. Networking/infra background is a plus. If you've scaled a team from 0 to 20+ and seen your product scale too, I'd love to talk to you.

- Senior/Staff Backend Engineer (Go) : the control plane: peer coordination, policy and access control, multi-tenancy, and keeping it all fast as customer networks grow into the hundreds of thousands of peers.

- Network / Client Engineer (Go) — the agent side: WireGuard, NAT traversal and hole punching, relays, DNS, and shipping one client across Linux, macOS, Windows, iOS and Android. If you enjoy debugging why one connection out of a thousand won't go peer-to-peer, this is the role.

- Solutions Engineer — technical, customer-facing, pre/post-sales. You'll be the person who architects a rollout for a 500-person company's network live on a call, and a great channel back into the roadmap.

- Account Executives :)

We have an office in Berlin and mostly work CET/CEST. We'd love to have you in the office with us, but if your experience is stellar we're happy to hire remote. We're scaling quickly, so this is a chance to join early and scale with us.

Apply at https://netbird.io/careers, please mention you found us on Hacker News in your application.

Purchasely | https://www.purchasely.com | Senior iOS SDK Engineer | Paris, France | REMOTE (France) | Full-time (CDI) | Fluent French and English required | [€60k-€70k + BSPCE]

Purchasely is an in-app monetization platform: app teams design, launch and A/B test paywalls and onboarding screens without shipping an app update. Our SDKs (iOS, Android, Flutter, React Native, Cordova) are embedded in our customers' apps, so if our SDK crashes, someone else's app crashes. Stability, binary size, backward compatibility and clean public APIs come first.

You'll be a hands-on engineer on a small mobile team, owning the native iOS SDK: [StoreKit 1/2, UIKit/SwiftUI rendering, public API design, release process]. You'll also work directly with customers' engineering teams on tricky integrations, so you should enjoy reading other people's code and explaining yours.

We're looking for [5+] years of iOS with strong Swift, ideally with experience shipping a library or SDK used by third parties. Fluent French is a must: the engineering team works in French daily. Professional English is a must: our customers are located worldwide and support is in English, we also have coworkers from all over the world.

Process: no take-home. One 1h30 live technical session during the interview.

Direct applicants only, no agencies.

Details: https://purchasely.notion.site/Senior-iOS-SDK-Engineer-ee63d...

Pairio (https://pairio.app) | Senior Swift Engineer | REMOTE (Europe) | 32-40h/week | Employee or freelance | $65k-$85k + equity

Pairio is a native macOS app for real-time screen sharing, built for people who work together. You share your screen, your teammate draws on it and takes over your keyboard. One click to call, no link, no invite. We use it every day to build it.

You'd work on pixel-perfect screen sharing (capture, encode, transport, rendering), one-click calling (WebRTC), drawing and remote control, privacy (app masking, encryption) and latency. The Swift app talks to a Rails backend, so bonus points if you're comfortable on both sides.

We're looking for deep native macOS or iOS experience in Swift, a real feel for UX and pixel-perfect UI, and someone who enjoys owning large parts of a product in a small team. Please be based in Europe so we have real overlap for pairing.

We're four founders in Amsterdam running a healthy, profitable business. Stack: Swift, SwiftUI, AppKit, Rails. Flexible start.

Email us a bit about yourself, what you've built and why this interests you: hello@pairio.app, or see https://pairio.app/jobs

Perry Street Software | Senior Mobile Developer (iOS) | https://www.perrystreet.com/careers | Remote (North America / LatAm) | Full-Time

Perry Street Software publishes Jack'd and SCRUFF, two of the world's largest LGBTQ+ dating apps on iOS and Android. Our brands reach more than 30 million members worldwide, so members can connect, meet and express themselves on a platform that prioritizes privacy, security, and community. Our company puts user privacy first, and doesn't sell data or use third-party ad networks.

As a Senior Mobile Developer, you will help us build the user-facing pieces of the next generation of Scruff and Jack’d. We are looking for engineers who are passionate about architecture and excited to become polyglot in their understanding of Swift, Kotlin, and backend framework languages. We are a small, nimble company, so the ability to make an impact is significant. The position is 40 hours per week and ongoing/full-time.

What you'll do:

- Clean architecture using dependency injection (Koin/Swinject), modules, and functional & reactive programming (RxJava/Combine) - Modern UIs with a live style guide and Jetpack Compose/SwiftUI - Test and behavior-driven development, starting with the ViewModel layer (see our blogs), using Quick/Nimble, KoTest, Konsist, and CombineExpectations. - We are pioneers of architectural linters (we are the #1 consumer of Konsist and introduced Harmonize for iOS). This enables us to apply architectural principles across a global, distributed team - Develop production-ready code serving millions of users right away - You can see more about our architectural approach on our Engineering blog at https://medium.com/perry-street-software-engineering or learn more about us at https://www.perrystreet.com/careers

Wake Up Call Service | Remote | Hiring people to make calls | At your convenience, no set hours

Wake Up Call Service is a mobile app on iOS and Android that allows people to schedule a wake up call and get a call from a real, friendly human at the desired time. All calls happen through the app, so no phone numbers are exchanged. Get a chance to wake up sleepy people from all over the world!

Apply in the app - it's super simple: https://www.realwakeupcalls.com

Radar Labs | Software Engineers (SRE, ML, backend, full-stack, mobile, security, QA) | Remote (US), NYC | Full Time | https://radar.com

- Radar is the geo-location dev tool

- Doing 1B+ API calls per day

- Our main languages are Rust and TypeScript, we also use mobile and offline pipeline languages (Python, Scala, and Terraform).

- We're based in NYC with our HQ in Union Square and remote friendly (US)

Interesting things we're working on:

- HorizonDB, our Geospatial database written in Rust

- Agents and MCP tools to visualize and debug location data at scale

- Precise indoor location more accurate than iOS and Android leveraging Ultra-Wideband, other mobile sensors and ML.

- Anomaly detection to identify spoofed locations

- Mobile infrastructure that automatically configures itself optimizing battery-life and location accuracy for different use-cases over time

- Multi-Region AWS K8s deployment, 99.99%+ availability

Check out our jobs page here: https://radar.com/jobs#jobs If you have any questions, feel free to reply here or you can e-mail me at tim@radar.com

IRLi | Founding team | Southern California or REMOTE (US) | Profit share + founding equity, no salary

Pre-launch marketplace, web and iOS. Company is formed and self-funded, product is fully designed.

Open seats: Founding CTO, Head of Community Growth, Head of Partnerships, Head of Content and Brand, Head of Trust and Operations.

CTO: you've shipped mobile and web apps with payments, and you believe IRL matters as much as AI.

No salary. Profit share plus founding equity on a four-year vest. Details shared after an NDA.

Email cam@irli.io with a link to something you've built or grown and the seat you want.

Human8e Ltd | Applied cryptographer, protocol review | REMOTE (worldwide) | Contract, fixed fee

We're an early-stage UK company building a mobile application, funded by its founder (just me), which is why the scope below is deliberately narrow.

I'm looking for an applied cryptographer to review a protocol specification before it ships. It is small and specific: three messages, two parties, signature-based, using hardware-backed keys on both iOS and Android. It uses standard primitives only (ECDSA over P-256, SHA-256) and invents no new cryptography; the question is how they are combined. The specification is written and frozen, with test vectors and the generator that produces them.

What I want is a competent second opinion on whether it is sound: six specific questions answered in writing. Not an open-ended audit or a penetration test. The person I'm looking for has either published on protocol security or reviews protocols professionally; being good with crypto libraries isn't quite the same thing.

One piece of contract work, not a role. Under a short mutual NDA.

Email clive@human8e.com by Sunday 4 October with a short summary of the protocol analysis you've done, and I'll send scope, timing and what I'd need from you.

Beacon AI | 3 days hybrid in San Carlos, CA | https://beaconai.co/careers

Due to U.S. export control regulations, we can only hire U.S. Persons (U.S. citizens, Green Card holders, lawful permanent residents, or individuals granted asylum or refugee status).

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 Senior/Lead Engineers with 5+ 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:

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

++ Senior Security Engineer [FedRAMP ATO/SSP or DoD IL4/IL5, AWS/GovCloud]

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

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

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

Flexibits | Android Software Engineer | Remote | Full-time https://flexibits.com/jobs

We make Fantastical and Cardhop, award-winning calendar and contacts apps for macOS, iOS, visionOS, and Windows. We are a small, fully-remote company spread across the US and Europe, and welcome anyone from around the world. We prefer candidates that are in time zones between US Pacific Time and Central European Time.

We're looking for an enthusiastic and experienced Android developer to help bring the joy of Flexibits apps to Android. This will include learning the ins and outs of Fantastical and bringing its magic to Android, all the way from the natural language parser to the beautiful user interface.

Tech stack: Kotlin, C#, Objective-C, Swift, AppKit, UIKit, SwiftUI, C, C++.