Our mission is to develop the best education in the world and make it universally accessible. Our culture is eng-driven, friendly, and very data-driven thanks to our large userbase. Check out our blog to see what engineering at Duolingo can look like: https://blog.duolingo.com/hub/engineering/
Tech stack: (frontends) Swift/Kotlin/TypeScript, (backend) Python/Kotlin/Postgres/Dynamo, (infra) AWS/k8s/Terraform.
We're always hiring for engineers. A few roles below:
Senior Engineering Manager, Chess (NY) https://careers.duolingo.com/jobs/8385137002
Senior Android Engineer (NY) https://careers.duolingo.com/jobs/8217266002
Senior iOS Software Engineer (NY) https://careers.duolingo.com/jobs/8318257002
Engineering Director (London) https://careers.duolingo.com/jobs/8444624002
Senior Gameplay Programmer (London) https://careers.duolingo.com/jobs/8424809002
Base salary: $177-240K for the NY-based roles, unsure about the London-based roles.
Perks: breakfast and lunch served in office, 2-week winter break + 20 days of flexible time off.
At Twindo, we’re working on spatial computing - using computer vision to 3D reconstruct and understand your surroundings so that software can operate over real-world spaces.
Twindo brings together everything that professionals need to understand the spaces they design, build, and manage, without extra site visits or second-guessing. With a quick scan or plan upload, any space becomes structured, accurate, design-ready data your whole team can actually use.
iOS & Backend Engineer (Python) (Europe/LatAm Remote) Chief Product and Technology Officer (Global Remote) Associate Account Executive (Mid Market Sales) (USA Remote) Full Stack Engineer (Backend focus) (Europe/LatAm Remote)
For detailed information check out https://www.twindo.com/careers/
Keywords: 3D, computer vision, photogrammetry, geomatics, SLAM, CAD, iOS, Python
Fullstory offers 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.
Our current engineering roles are all semi-onsite in Atlanta, USA (1 day per week in office):
* Senior Software Engineer, Web Capture - $145~170k + 10% bonus - JavaScript/TypeScript, React, Go (golang) - https://www.fullstory.com/careers/jobs/76e583a9-74c0-42d4-ae...
* Software Engineer, Digital Experience Analytics - Go (golang), TypeScript, GCP - https://www.fullstory.com/careers/jobs/a786962d-68c1-48fa-8b...
* Software Engineer, Subtext - AI agents, Go, TypeScript - https://www.fullstory.com/careers/jobs/073bfc41-0ac6-4e59-a5...
We have additional roles for sales, consulting, product design, product management, and customer support open in Atlanta, Seattle, London, and Czechia as well as some Remote (US) options. See the full list at https://www.fullstory.com/careers?ashby_jid=bce3fcba-6b80-43...
For US roles, you can expect regular raises & bonuses, equity, and benefits including: health insurance, 401k matching (Vanguard), annual learning stipend, unlimited PTO, parental leave, and more. I take about 4-5 weeks vacation a year, in addition to ~3 weeks worth of company holidays (federal holidays + the week of Christmas to New Years.)
Folks in other countries can also expect a strong benefits package, but I'm not as versed on the details.
Additionally, you get a 5-week sabbatical after 5 years of employment - I took mine about a year ago, 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.)
- Head of Marketing (Berkeley, California): https://app.deel.com/job-boards/swingvision/job-details/f248....
- Senior iOS Engineer (Berkeley or Irvine, California): https://app.deel.com/job-boards/swingvision/job-details/cf4e....
- Data Labeling Intern (Berkeley, California): https://app.deel.com/job-boards/swingvision/job-details/a9a7....
Senior/Staff Python Engineers for our patient experience and core teams!
Ro is building an end-to-end healthcare platform (telehealth + labs + pharmacy) used by 2M+ patients. We’re hiring senior backend engineers who want e2e ownership: you’ll drive projects from problem framing → architecture → shipping incremental improvements → measurement and iteration, partnering closely with product/design/clinical.
What you’ll own: - Lead critical initiatives end-to-end with team members - Make pragmatic architecture decisions and raise the bar on quality (observability, performance, correctness) - Coach/lead through influence: reviews, design docs, unblocking, setting standards - Ship in small slices with measurable outcomes (not “big bang” rewrites)
Stack: Python, FastAPI, Postgres, AWS, Redis, Kafka/queues, Docker/K8s, observability tooling
Open roles (apply here): https://ro.co/careers/#open-roles
Other roles we’re also hiring for: SRE, iOS, and a few leadership roles (see job board).
We make people do push-ups before opening addictive apps - verified through camera pose detection. Our goal is to replace doomscrolling with exercise.
500k+ downloads, bootstrapped and profitable, very quickly growing.
Looking for someone strong in Kotlin Multiplatform + Compose Multiplatform + Swift/SwiftUI who works independently, uses AI to ship fast, and can implement a pixel-perfect Figma design.
Bonus: Supabase, Amplitude, native Android/iOS knowledge (e.g., Screen Time).
Small team, work directly with founders, long-term role. We’ve got big plans to make Pushscroll the app of the year, and there are exciting challenges to get there.
Reach out: contact@pushscroll.com
We are looking for candidates that are excited to join us on a mission to raise the standard of trust online. All of our roles are fully-remote, except where specific locations are noted.
Most of the software engineering positions have been repeating here for years because we've been continually hiring for them, scaling our whole team to now over 300 people—many of those hires have come through Hacker News. We've been improving our hiring process over time, and we know some good candidates may have fallen through the cracks. Some people who tried in the past have had success going through it again, and we still pay for hiring projects.
Senior Android Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/57eea673-2519-4afc-a9a...
Senior iOS Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/a1239b43-0c9a-45a4-b35...
Senior Privacy Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/72ec81ce-54a2-447a-9a8...
Senior IT Ops Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/3fbdaa82-b135-46dc-b90...
Senior Web Security Engineer, Browser Platform - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/12b7b49c-ee06-4d70-850...
Senior Manager, Integrated Media Planner - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/6f04b627-4f35-4978-a8c...
Director, Business Development (Remote within USA)- $243,800 USD + equity https://jobs.ashbyhq.com/duck-duck-go/30f53ccd-9714-4bee-9d5...
Senior CloudOps Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/6ea1e8dd-addf-48e9-867...
- 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
FUTO is an organization dedicated to developing, both through in-house engineering and investment, technologies that frustrate centralization and industry consolidation. Our work consists of a combination of in-house engineering projects, targeted investments, generous grants, and multi-media public education efforts. We are hiring for a few of our projects, Immich and Grayjay.
Immich is on a mission to provide a secure and private home for your most precious memories through our high-performance, self-hostable photo and video backup solution.
Grayjay is a privacy first media application that lets users follow creators, not platforms. The app aggregates content from multiple video sources including YouTube, Rumble, Twitch, PeerTube, Odysee, and more, into a single unified experience. Grayjay gives users full control over their viewing experience.
Roles currently available:
Mobile Developer - Immich : https://futo.tech/jobs/mobile-developer-immich
Android/iOS Mobile Engineer - Grayjay : https://futo.tech/jobs/mobile-engineer-grayjay
Plugin Engineer - Grayjay : https://futo.tech/jobs/plugin-engineer-grayjay
More details and job postings here: https://futo.tech/jobs
To apply, send your resume and cover letter to jobs at futo dot org.
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 personal agents part of our daily lives. More details from Sequoia: https://www.sequoiacap.com/article/partnering-with-sesame-a-...
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: https://jobs.ashbyhq.com/sesame
- ML Engineers
- Product Designers
- Product Managers
- iOS & Android Engineers
- ML Model Serving Engineer
- Embedded OS Architect
- Mechanical Engineer, Product Design
- Embedded Engineers
- Electrical Engineer
- Audio Systems Engineer
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...
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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.