Here at Duolingo, we are passionate about educating our users, making fact-based decisions, and finding innovative solutions to complex problems. We offer meaningful work, limitless learning opportunities, and collaboration with world-class minds. Come brighten your life and over half a billion more!
Highlighted Roles:
Database Reliability Engineer (PGH)
Platform Engineer (PGH)
Senior Mobile Engineers, iOS and Android (PGH, NYC, Seattle)
Senior Backend Engineers (PGH)
Engineering Leadership, Manager or Director (PGH)
Senior/Staff Data Scientists, Economics (PGH or NYC)
For more details, you can view/apply to all current openings here: https://grnh.se/41f1af102us
, , )\___/( {(@)v(@)} {|~~~|} {/^^^\} `m-m`Stream powers APIs for Chat Messaging, Activity Feeds, Auto Moderation, Video & Audio that are used by over a billion end-users, and are powered by Go, RocksDB, and Raft - with response times typically measured in single-digit milliseconds.
We reached a new industry benchmark for scaling real-time chat as-a-service, with 5 million concurrent connections supported in a single chat channel. We’re currently one of the fastest growing startups in Europe and Colorado on our Series B round of $38 mln: https://tcrn.ch/3peCYXl
We’re hiring for the following positions:
* React Native SDK Engineer (Netherlands/North Macedonia)
* Senior Backend Engineer (Go) (Netherlands/EU Remote)
* Android SDK Engineer (Compose) (Netherlands/EU Remote)
* Flutter SDK Developer (Netherlands/EU Remote)
* Lead Flutter SDK Developer (Netherlands/EU Remote)
* Frontend Engineer (Netherlands/EU Remote)
As a part of Stream, you'll have a chance to make a huge impact on the product within a team of the strongest engineers all over the world (over 35 countries aboard).
If you are interested in becoming a part of what we do, apply now! https://getstream.io/team/#jobs
Hi all, I’m Yuriy, founder of Puma.tech. Previously worked as software engineer & developer advocate at Cloudant (YC S08, Acq. by IBM), Meteor (YC S11), Parse (YC S11, Acq. by Meta), and explored Ai/ML (computer vision for self-driving cars) before diving deep into crypto.
Puma Browser is focused on making LLMs easy to use on your mobile phone. Private by design.
Here’s a quick demo we posted recently: https://x.com/PumaBrowser/status/1797072415388033393
We’ve raised Angel and Pre-Seed Rounds from some of the best builders in crypto and Ai: Illia Polosukhin (NEAR Protocol), Sridhar Ramaswamy (Snowflake CEO, Neeva, Greylock), Jason Warner (ex-GitHub CTO), Chris Larsen (founder of Ripple), Don Ho (Orange DAO, Quantstamp), Protocol Labs, Shima, SBI, Fenbushi, HashKey and more.
- We value Optimism, Kindness, Curiosity, Speed and Grit.
- Only two recurring weekly meetings to maximize state of flow: Monday all-hands, Friday Demos.
- Careful with growth and never had to do layoffs.
- Capital efficient with 3+ years of runway.
Open Roles: Eng (iOS, Android, Ai/ML, Browser Extensions), Based Social Media Intern; Internships: Eng, Design, Growth
How to Apply: visit https://puma.tech or email careers+hn [at] puma.tech with your GitHub, a note on what you're most proud of building and what you'd like to build next.
Thank you!
Zeller is building a better business bank. Join the Native Mobile team and work on our EFTPOS payment terminals, contribute to payment technologies in our iOS/Android app, and help steer the course of other associated technologies.
Android and Kotlin are our fundamental skillset, Kotlin Multiplatform, Compose Multiplatform and iOS are a bonus.
Interested? Questions? konrad@myzeller.com
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 Sales, Marketing, Finance, and Security.
Team is 41 full-time, full-remote from 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.
--
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.
--
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.
--
Ex-Founders (all roles) - Remote (Global), Full-Time
We encourage founders in software engineering, sales, marketing, customer success, design, and product to reach out. If you don't see a relevant position open, reach out to jobs at mixrank.com. We care more about the person than the job position, and we're happy to craft the perfect position for anyone that joins our team. People with founder experience tend to be very successful at MixRank, and our leadership team is filled with founders.
--
I'm Scott, Founder/CEO/CTO. Please apply here: https://www.ycombinator.com/companies/mixrank/jobs
I’m the CEO of Cartesian Systems, a seed-stage MIT startup on a mission to map the physical world at unprecedented scale and precision. We're looking for a lead mobile engineer to complement and amplify our core team at Cartesian, as we transition our product to scale.
Here's some info about us and the role:
- Cartesian spun out of my lab at MIT in 2023 after 7 years of award-winning research/IP development in indoor mapping & localization. Since then, we have built our first product, deployed it with early customers, and are cashflow-positive.
- Joining Cartesian now is a unique opportunity to lead a core component of our product as we transition to scale and to help shape the product roadmap and company culture.
- You'll lead the end-to-end design, development, and deployment of our native Android application, mentor other engineers, implement novel features like real-time user feedback and AR guidance, and collaborate on shipping stable and performant enterprise products.
- Our current app is native Android and written mostly in Kotlin. The core pages include location tracking, BT and camera sensor data, and live updating maps.
More information about the opening and how to apply here: https://jobs.polymer.co/cartesian-systems/29986
We're a stealth mode company based in California building the next generation of electric vehicles and worldwide mobility.
We need motivated and broad-skilled software engineers who have experience in mobile app and full stack development.
* Mobile Engineer (React Native) - Ideally candidates have deep experience developing and building native mobile applications (primarily with React Native) comfortable with Android Kotlin/Java and/or iOS Swift, and familiar with most common third party libraries and APIs, Javascript/Typescript, mobile build tools (such as Gradle, Android Studio, and Xcode) and some interest or experience working with BLE devices and IoT frameworks.
* Fullstack Engineer - Ideally candidates have experience building scalable web applications with Javascript/Typescript or similar languages (Python, Ruby), front-end experience with React and/or Angular, modern web frameworks, build pipelines, Docker and container virtualization, OpenAPI, OAuth, SQL, various cloud environments (AWS, Google Cloud, or Azure), websockets.
Nice to have experience with hardware, IoT devices, or Bluetooth, internationalization, and an interest in electric vehicles or sustainability
Email me and share your Resume/CV and a bit about yourself: stealthmobilityhiring (at) gmail.com
- Radar Labs is the location infra dev tool.
- Doing 1B+ API calls per day
- Our main languages are Rust and TypeScript, and we also use mobile and offline pipeline languages (Python, Scala, and Terraform).
- We're based in NYC with our HQ in Union Square.
Interesting things we're working on:
- HorizonDB, our Geospatial database written in Rust
- Precise indoor location more accurate than iOS and Android leveraging sensors on the device and ML models
- Mobile infrastructure that automatically configures itself optimizing battery-life and location accuracy for different use-cases over time
- Frontend tools to visualize and debug location data at scale
What you'll do:
- Work on core Radar infrastructure (mobile, backend, full-stack)
- Have your work run on 100's of millions of devices
- Talk to Radar customers and prospects, hear their feedback, incorporate it into your work and make them successful
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
ABOUT – Are you an Engineer who loves the outdoors? Join onX! onX is a suite of digital navigation apps (Hunt, Offroad, and Backcountry) that empower millions of outdoor enthusiasts. If you’re passionate about writing great software, love playing outside, believe in protecting access to public lands, and want to dominate the off-pavement mobile GPS market – then join our team, where we empower millions of outdoor enthusiasts to explore the unknown! We have multiple openings! View them here: https://www.onxmaps.com/join-our-team
Here are some of the technologies we work with:
3D (OpenGL, Metal, C++)
Data Automation (Python, PostgreSQL, GIS)
Android (Kotlin) - 3+ positions open
iOS (Swift, SwiftUI) - 2 positions open
Backend (Go, Elixir, GraphQL, GCP, Kubernetes) - 1 Elixir position open
Web (Vue JS) - 1 Fullstack role open
Quality (Cypress, XCUITest, Espresso)
We want to help every person to feel in control of their healthcare: to know what's going on with their body and to not feel alone.
MDandMe (https://mdme.ai) builds generative AI technology that allows people to make sense of their health at all steps along their healthcare journey: from a conversational symptom checker when you first feel unwell, to a community where you are matched to others with near-identical medical histories, to follow-up conversations where you can have diagnostic reports, lab values, and doctors notes explained in plain language.
Since our soft launch in February 2024, we’ve helped over 50,000 people in all 50 states. To learn more read our recent blog: https://mdme.ai/blog/2024/06/03/in-the-know
We are currently looking for two positions:
1. Mobile SWE (React Native, iOS + Android): over 93% of our traffic comes from mobile devices. Right now we are a React/NextJS webapp and are currently building a React Native mobile app. https://swift-step-f49.notion.site/Mobile-SWE-06f94fd945bd4f...
2. Data Journalism Intern: uncover insights that can help our community thrive. We hope to share trends, common health questions from our users, and more in a weekly blog post. https://swift-step-f49.notion.site/Data-Journalism-Intern-55...
See our current team on https://mdme.ai/about#team
If interested, email me at ilya@mdme.ai
Moreover, our healthcare is systemically unequal. People of color, lower income, and LGBTQ+ have demonstrably worse healthcare outcomes, a disparity grimly highlighted by the pandemic we’re living through now where people of color are three-times more likely to die from COVID-19.
How can this be, and how can we change it?
Nuna is tackling one of the most hardest problems in healthcare underlying the negative outcomes and disparities we see: how healthcare gets paid.
Today, hospitals only get paid when they do more-- more visits, more tests, more meds, more surgeries. Hopefully this helps patients get better, but regardless, the system gets paid. In fact, doing more is the only way to stay afloat.
But -- is this really the right set of incentives? Shouldn’t everyone get rewarded not just by doing more, but by when patients actually get better? Shouldn’t everyone have access to affordable, high quality care, and shouldn’t hospitals be rewarded when they deliver this care? And shouldn’t insurance companies get rewarded when they help ALL their patients get better?
Absolutely, yes. This concept is called Value-Based Care. In fact, healthcare as a whole has been trying to move in this direction for years, but making it all reality is deeply complex -- it is after all our healthcare. Nuna’s technology platform, our software apps, our vision, and our exceptionally talented team are collectively accelerating the healthcare system’s ability to make value-based care available to everyone.
In 2022, Nuna will power over $70B of healthcare payments for over 6.5M patients. We also leverage our data science and platform to direct patients to the best, culturally-matched, and accessible care providers for them. Additionally, we make it transparent and easy for both hospitals and insurers to see how they are performing in value-based care by spotlighting the patients or areas where they need to pay extra attention so that they can provide good care to all their patients and get rewarded.
Nuna is unique - we have brought together an exceptional team of over 200 people. We are the industry’s best in healthcare data, analytics, engineering, clinicians, and value based healthcare experts. We have joined forces to create a more equitable health system for everyone.
Our dreams and ambitions to change healthcare as we know it are big. If yours are too, we want to work with you.
Open positions include:
* Engineering Manager, Data Platform
* Sr Software Engineer, Full Stack - Provider
* Senior Data Scientist, LLM
* Lead Software Engineer, Rewards AI/ML
* Lead Software Engineer, Data Platform
* Lead Software Engineer, Program Engine
* Lead Software Engineer, Developer Infrastructure
Jobs Board: https://bit.ly/nuna-job-board
Frontend: React, Typescript, Flutter (Android and iOS)
Backend: Django, Python, Kotlin, Scala
Cloud: AWS
Questions? Email: recruiting+hn@nuna.com
Job: Senior Android and iOS Engineers
Location: USA (Remote)
Allows remote: Yes
We're a 15-year old janitorial inspection software platform with local-first mobile apps.
We're looking a senior developer to lead each of our iOS and Android app development efforts.
We've recently completed a proof of concept for a green android field app using fully native Kotlin / jetpack tech to upgrade the user experience and potentially even overshoot the performance of our iOS app.
We're also experimenting with an updated architecture on iOS that takes our user experience to the next level.
JDs here:
- https://www.orangeqc.com/senior-android-engineer/
- https://www.orangeqc.com/senior-ios-engineer/
Please email me with a resume: dave@orangeqc.com
FUTO is an organization dedicated to developing, both through in-house engineering and investment, technologies that frustrate centralization and industry consolidation. Through a combination of in-house engineering projects, targeted investments, generous grants, and multi-media public education efforts, we will free technology from the control of the few and recreate the spirit of freedom, innovation, and self-reliance that underpinned the American tech industry only a few decades ago. Our principles are here: https://futo.org/about/what-is-futo/
FUTO is hiring for two Quality Assurance roles.
QA Lead - We are looking for a full-time, in-person QA Lead to drive our quality assurance efforts across FUTO’s projects, with a focus on our Android applications. The ideal candidate is aligned with our principles, has a strong sense of software craftsmanship and will be highly active in dogfooding our products. https://futo.org/jobs/qa-lead/
QA Tester - We are seeking an experienced QA Tester to join our team on a part-time or contract basis. The ideal candidate will have a keen eye for detail, a systematic approach to testing, and a strong ability to document and communicate findings. The position will be responsible for ensuring our applications meet the highest standards of quality. https://futo.org/jobs/qa-tester/
To apply, send your resume and cover letter to jobs at futo dot org with the subject of the position you're interested in.
TeamSnap is hiring for multiple positions to join our remote-first team. We work every day to simplify the lives of players, coaches, parents, and sports organizations by taking the headache out of organizing sports.
Engineers at TeamSnap are critical to our technical and product innovation. We build applications and services with Ruby, Elixir, React, TypeSript, Go[lang], Swift, Kotlin, MySQL, RabbitMQ, Docker, Kubernetes, Firebase, and Google Cloud. On the Full Stack side, “T-shaped” developers are encouraged.
Open technical roles:
- Senior Android Engineer
- Senior Data Engineer
- Senior iOS Engineer
- Senior Software Engineer (BE/Fullstack)
- Software Engineer
We also have a number of non-technical roles available as well!
View all roles here: https://jobs.lever.co/teamsnap/?lever-via=0u_uZ-k-Wh&lever-s...
We're a restaurant tech company on a mission to make restaurants better for everyone. We offer a full end-to-end product that allows customers to run their own online ordering, process the orders using our kitchen suite and deliver the orders using their own dedicated fleet of drivers. We strive to give restaurants back the control they've lost to the third party middlemen.
We run a monorepo Elixir/Phoenix LV codebase backed by Postgres. We maintain a couple native apps that leverage KMM and SwiftUI/Jetpack.
We're a small remote-first company based out of Indianapolis, IN.
We're seeking senior level talent to join our team. You will work across a wide problem space in a pretty fun domain.
Elixir experience a plus, but not required.
Positions:
- Senior Engineer - Full-Stack Elixir/LV - Mobile Engineer - KMM / iOS / Android If you are interested please reach out to me at dan 'at' empower.delivery.