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.
--
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.
--
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...
--
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...
--
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.
Brussels based company specialized in Custom Web & Android Applications, Security and Compliance, Managed IT Services and Cloud Hosting. We are looking for Commercial Manager M/F.
As a Commercial Manager, you will play a central role in the development of our business. You will work directly with the management committee, actively contribute to defining the commercial strategy, represent the company’s image in the field, and stay continuously trained and informed on cybersecurity issues.
Info & Application: https://www.i-logs.com/job-opportunity-commercial-manager-25...
About us: From facilitating the first electronic payments in the Netherlands in the 70s, to offering the first mobile payment terminals there and enabling next-gen online payment services throughout Europe from the 00s and onwards; CCV has always been a pioneer in payment.
Role overview: As a Software Engineer, you will work in a team of 30 employees focuses on innovating reliable payment terminals and the underlying systems. This is based on customer requirements, developments in the European payment market, and changes in security standards (PCI, Nist, Dora). You will work on applications that ensure secure loaded of software and keys (initial and remotely) onto Linux and Android payment terminals. The applications are written in C# and interact with, among others, RabbitMQ, Microsoft databases, ERP systems, and Utimaco hardware security modules (HSM's).
What we’re looking for: 1-5 years of software engineering experience (.Net, C#) and familiar with cryptography (RSA, AES, Eliptic Curve).
The work is highly technical and challenging. If this sounds like something you're passionate about, I invite you to visit
https://www.ccv.eu/nl/over-ccv/werken-bij-ccv/vacatures/secu... and apply!
- 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
We're looking for someone help maintain and evolve a cross-platform Electron desktop app aimed at facilitating real time communications within enterprise environments. You’ll own desktop features, native modules, and real-time comms.
Must have:
- Strong Electron + Node.js (packaging, auto-update, native modules).
- Solid JS/TS and cross-OS debugging.
- Strong work ethic and comfortable working remote, asynchronous communication, and owning features end-to-end.
- Ability to hit the ground running and be able to deliver from day one.
Nice to have experience with:
- WebRTC, XMPP, and E2EE/encryption APIs experience.
You’ll:
- Maintain native modules and ship cross-platform releases.
- Implement/optimize real-time features and integrations.
- Improve security, performance, and test/CI coverage.
If you think you're a fit, send an email with your CV at "ilya.lopukhin _a_t_ 1rstwap.com" and we'll talk.
===
We're also looking for a senior Java developer to help maintain and evolve the Android. You’ll own Android features, native integrations, and shipping releases.
Must have:
- Strong Java + Android SDK experience (app architecture, lifecycle, background services).
- Practical WebRTC on Android experience.
- Experience shipping rock-solid Play Store builds.
- Some NDK/JNI experience (not very much needed though).
- Strong work ethic and comfortable working remote, asynchronous communication, and owning features end-to-end.
- Ability to hit the ground running and be able to deliver from day one.
Nice to have experience with:
- XMPP and E2EE/encryption APIs.
- Managing CI/CD for Android
You’ll:
- Maintain and extend the Android client, we have tons of new features planned for the foreseeable future.
- Implement/rescue complex features (call reliability, background push, low-latency reconnects).
- Optimize performance (startup, memory, battery, call quality) and fix device-specific issues.
If you think you're a fit, send an email with your CV to "ah _a_t_ digital-vitamins.at" and we'll talk.
Zetier develops real-world tools and capabilities to secure our nation in the short- and long-term. If you’re excited to delve deep into low-level systems, exploit dev, and more alongside a group of passionate hackers, then we’d love to hear from you.
Open-sourcing our work as much as possible is integral to Zetier and what we stand for. As folks who learned to hack on platforms like Linux, we aim to give back to the OSS community. Not only do we encourage our engineers to contribute, but we go a step further, adding monetary incentives to do so.
We’re looking to find the right people for a range of roles, including:
+ Vulnerability Researcher
+ Android Security Engineer
+ CNO Embedded Engineer
+ CNO Software Engineer
+ IT Security Engineer
+ Senior Technical Lead
+ Business Developer
All open positions: https://zetier.breezy.hr/
Our approach and benefits: https://zetier.com/careers/
Different skill set? Drop us a line at hello@zetier.com
JustPark is the premier partner offering both B2B solutions for destinations and B2C services for drivers, giving us the best of both worlds. We simplify the entire parking experience. From venues and councils to private driveways, our platform makes it simple for drivers to find, book, and pay for parking—while empowering our operating partners to deliver exceptional parking experiences.
Lead Frontend Engineer: responsible for leading and evolving the frontend engineering strategy across JustPark's web platforms. The position involves technical leadership of the frontend engineering squad, architectural oversight, and ensuring high-quality delivery of frontend solutions that serve millions of users globally across our customer-facing applications, internal tools, and client portals.
Lead Android Engineer: drive technical excellence and best practices in Android development, architect and oversee the implementation of new features for Android platform, balance Android-specific optimization with cross-platform consistency requirements, collaborate with product and design teams to deliver exceptional Android user experiences.
Amazing benefits include free lunch on office days, free snacks & drinks, free concert tickets to the O2, generous holiday policy (up to 38 days a hear inc. bank holidays), private medical insurance and much more.
Apply directly using the below links.
For Lead Frontend Engineer: https://apply.workable.com/justpark/j/DB918AA730/
For Lead Android Engineer: https://apply.workable.com/justpark/j/248B41BD2A/
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