Ditto is redefining how data moves at the edge. Our mission is to make it effortless for developers to build resilient, real-time applications—no matter the network conditions. Whether you’re in a stadium, airplane, or remote base, Ditto’s peer-to-peer sync engine keeps devices connected and data consistent, even offline.
We’re trusted by Chick-fil-A, Delta Airlines, Lufthansa, and have raised $145M+ to power mission-critical systems across aviation, retail, hospitality, defense, and more. We’re a remote-first, globally distributed team building the future of edge connectivity.
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Staff Software Engineer, SDKs (Flutter)
As a Staff Engineer on Ditto’s SDK team, you’ll own the architecture, performance, and developer experience of Ditto’s Flutter SDK—empowering developers to sync data seamlessly across Android, iOS, desktop, and web.
You’ll design idiomatic Dart APIs, build robust native bridges using Dart FFI and platform channels, and set the technical direction for how real-time sync feels for Flutter developers worldwide. Expect to ship production code, shape release automation, and mentor engineers across the mobile org.
If you love designing elegant APIs, profiling cross-platform performance, and crafting tools other engineers love to use, you’ll thrive here.
Apply Here: https://job-boards.greenhouse.io/dittoliveincorporated/jobs/...
Please feel free to reach out on any questions you have about the role.
MixRank processes petabytes of data every month from web crawling. We have hundreds of customers using our data products including Google, Amazon, Facebook, Intel, and Adobe, across industries including Finance, Recruiting, Sales, Marketing, and Security.
We’re a fully-remote company with a global footprint in over 20 countries. We're growing, profitable, employee-owned, no dependence on outside funding. Applicants from all geographies and backgrounds are welcome.
We are looking for passionate individuals for whom programming is not just a job but it’s something they love to do. We're obsessed with computers, programming, big data, databases, compilers, hardware, math, data science, and the internet. Does this sound like you? Please apply to join our team.
Our code base is very friendly to new contributors. You'll have a fully-functional development environment within hours (fully automated) and be pushing commits on your first day. Deployments to production happen multiple times per day and finish in less than 2 minutes. Effectively all of our codebase is written in Python, Rust, SQL, Javascript/TypeScript, and Nix. The core technologies you'll need familiarity with to be productive are Python, PostgreSQL, Linux, and Git.
We operate at a larger scale than typical startups. We operate two datacenters with high performance servers we've built that are capable of dealing with the volumes of data we process. We've implemented our own distributed file system. We do full-scale web crawls. We download and perform static analysis on the entire universe of Android APKs and iOS IPAs that are published. Unlike a typical startup where you'll spend half of your time in meetings, and the other half fixing bugs from Jira tickets— at MixRank you'll get to challenge yourself with difficult technical problems that will help you to grow as an individual.
We're hiring continuously for the positions below— they aren't singular positions that will close once filled. Our philosophy on hiring is that the candidate is more important than the position. For each new member of the team, we design a custom role and responsibilities that are specialized to their interests. Other companies will come up with a long list of specific requirements for a position with the expectation that you'll exactly replace someone from the team, or that you'll be the perfect tetris piece that satisfies the job requirements decided by a committee. MixRank is more pragmatic: we'll first get excited about having a unique individual on the team, then we'll figure out the best way to accommodate their specific talents.
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Junior Software Engineer - Remote (Global), Full-Time
We're looking for remote junior engineers that have 0-3 years of professional experience in software, and 5+ years of curiosity exploring computers, programming, and technical hobby projects. This is an open-ended entry role with mentorship and diverse opportunities to work on all areas of our product: databases, distributed systems, infrastructure and tooling, data analysis, machine learning, frontend/backend web development, APIs, data mining, data modeling, and more. To stand out, please highlight what makes you unique: passion for computing, curiosity and side projects, work ethic, niche research, etc.
Ideally you've already graduated, but if you still have one or more years left of school, please feel free to apply anyway, and if you're the right fit for the team we'll figure out a way to accommodate your schedule.
https://www.ycombinator.com/companies/mixrank/jobs/Fnwsojk-j...
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Software Engineer - Remote (Global), Full-Time
We're hiring generalist software engineers to work on web applications, data mining, machine learning/data science, data transformation/ETL, data modeling, database scaling, infrastructure, devops, and more. We'll cater the role to whatever subset of these areas match your interests.
Beneficial experience includes PostgreSQL, Python, Rust, Linux, TypeScript, Nix, frontend/backend web development, and data mining.
https://www.ycombinator.com/companies/mixrank/jobs/RXQspen-s...
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I’m Kiran, Chief of Staff (CoS) at MixRank, a fully remote data startup building go-to-market intelligence. We’re US-incorporated but hire globally, and we’re bringing on new teammates to join a fast-moving team with real ownership and impact.
Fullstory provides privacy-preserving session replay and analytics for websites and mobile apps. Our session replays are nothing short of magical - they look almost like a video of the user's screen (with private details redacted) - and the combination with analytics creates eye-opening insights.
We have several roles open in engineering & product. The backend roles are going to be working with Go (golang), gRPC, Solr, BigQuery/BigTable, Kubernetes (K8S/GKE), and more on Google Cloud Platform (GCP), and then the fullstack roles add in TypeScript & React for the frontend.
USA:
* Staff Product Designer - $152~185k - https://www.fullstory.com/careers/jobs/bbd018bf-cf92-47ea-85...
Colombia:
* Senior Software Engineer, Web Capture: https://www.fullstory.com/careers/jobs/fc8bacd1-7ad3-41df-a9...
* Senior Software Engineer, Data Management: https://www.fullstory.com/careers/jobs/729bbb6e-29ba-451a-9b...
* Senior Software Engineer, Data Ingestion: https://www.fullstory.com/careers/jobs/02430757-91ab-46e0-86...
* Senior Software Engineer, Behavioral Intelligence: https://www.fullstory.com/careers/jobs/847fba62-f7b7-46ae-92...
We also have a few more roles open in the US & UK in sales, finance, and customer support - see https://www.fullstory.com/careers/ for the full list and some general info.
For US roles, in addition to the listed pay ranges, you can expect regular raises & bonuses, equity, and benefits including: health insurance, 401k matching (Vanguard), annual learning stipend, unlimited PTO, and more. I take about 5 weeks vacation a year, in addition to ~3 weeks worth of company holidays (federal holidays + the week of Christmas to New Years.)
You also get a 5-week sabbatical after 5 years of employment - I took mine at the end of last year, and it was fantastic.
To apply, please submit your info on the website, and our recruiting team will get in touch with you. If you have questions, feel free to reply here or contact me directly. (I'm an engineer on the iOS team, but I'll do my best to answer questions.)
Sesame believes in a future where computers are lifelike - with the ability to see, hear, and collaborate with us in ways that feel natural and human. With this vision, we're designing a new kind of computer, focused on making voice companions part of our daily lives.
Our team brings together founders from Oculus and Ubiquity6, alongside proven leaders from Meta, Google, and Apple, with deep expertise spanning hardware and software.
Open Roles:
- ML Engineers
- ML Scientists
- Product Designers
- Product Engineers
- iOS Engineers
- Embedded Engineers
- Electrical Engineers
- 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
- Precise indoor location more accurate than iOS and Android leveraging Ultra-Wideband, other mobile sensors and ML.
- Extracting raw map data from satellite maps and the web leveraging ML and AI
- 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
- Frontend tools to visualize and debug location data at scale
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
Senior Frontend React Native Engineer – Work on our React Native apps, ship features and own architecture. • 5+ years exp, React Native, TypeScript, Expo • Bonus: Fold user, passion for Bitcoin
Lead QA Engineer – Own automation, quality strategy, and mobile release confidence. • 5+ years in QA, 2+ leading QA or owning strategy • Experience with iOs/Android automation, Maestro/Detox/Appium
Perks: competitive salary + equity, 401k match, unlimited PTO, full benefits, yearly vacation stipend, no Monday meetings, Bitcoin starter pack.
Email tiffany.sawhney (a) foldapp.com or apply here: https://ats.rippling.com/fold-inc/jobs More: https://foldapp.com
Sentry helps devs catch & fix bugs — used by millions of devs worldwide. We’re growing the platform and product surface area and hiring aggressively across engineering:
Highlighted Open Roles (SF, CA):
- Senior Staff Engineer, Platform
- Staff Machine Learning Engineer, AI
- Engineering Manager, Analytics Platform
- Engineering Manager, Product Platform
- Senior Software Engineer, Developer Infrastructure
- Senior Software Engineer, Infrastructure
- Senior Software Engineer (iOS), SDK
- Senior Software Engineer, Issue Workflow
Apply here: https://sentry.io/careers/#openings
At Cleverbase, we’re building a safer digital society with our Wallet and Trust Services. We’re hiring a lead to create the most secure and user‑friendly digital identity wallet. You’ll turn business goals into wallet architecture for iOS and Android, stay hands‑on and guide the team shaping Europe’s most trusted identity solution.
Interested? Reach out: recruitment@cleverbase.com
We’re a mission-oriented company building pilot assistance technology that goes beyond what current autopilot (Level 1) automation can do by creating an AI pilot assistant (effectively R2-D2 for pilots). The platform will make aviation safer and more efficient. Our tech is deployed on the aircraft to help prevent accidents, reduce workload, and increase the effectiveness of both commercial and defense operators.
We’re a Series A, venture-backed startup, backed by: Sam Altman, Costanoa, Scout, and JetBlue. We’ve signed over 12 contracts with major defense and commercial players, and customer demand is growing rapidly, with significant milestones planned for next year!
Our current hiring focus is on the data platform and iOS software. https://beaconai.co/careers
++ Backend and Cloud Infra Software Engineers - Multiple Seniority Levels and Tech Lead Manager
++ iOS Software Engineer - Early Career
We're a lean team, and looking to maintain the high talent and effort density we've built over the last few years. If you're looking to have a direct impact with your work and solve problems that can save lives, we'd love to get the chance to meet you - join us at beaconai.co/careers. Mention in the application that you saw our post on HN.
We’re also hosting a Beacon AI Happy Hour on October 10 in San Francisco. If you’re excited about our mission and curious about joining the team, we’d love to see you there. RSVP Here: https://partiful.com/e/dOW8tvwAF3XQzDkHYFyz