Hi everyone! We’re a Series A startup on a mission to protect society from fraud and money laundering using a Cloud based SaaS platform. With fraud and money laundering skyrocketing, regulated professionals are struggling to keep pace with their compliance obligations. Thirdfort turns compliance into a competitive advantage, offering beautifully secure onboarding for regulated businesses operating across legal and property. We’ve already protected over 2.5 million people through life’s big transactions, with a core aim to protect many more.
We have the following open positions:
- Security Engineer - we’re looking for a security generalist who’s happy to get stuck into everything from architecture and assessments to policy and compliance.
- Lead React Native Engineer - we're looking for a highly experience React Native engineer with solid mobile experience to take the lead on our new app experience.
Come take a look at our open roles: https://www.thirdfort.com/jobs/
Falconer is building AI-powered knowledge tools for engineers. Knowledge management is a $30b industry, and we intend to build the tools that leverage AI to power the next generation of engineering knowledge. Our vision is to empower every engineer to write as well as the best technical writers, and enable every organization to have internal docs as great as the best external docs are.
We're currently a team of 4 from Stripe and Meta, prototyping the product with design partners, and hiring a few more engineers to round out the founding team. We've raised a $5m seed round and have several customers lined up, we just need to build it!
Apply at https://falconer.ai/careers, or drop your resume and a sentence or two about what AI knowledge workflows you would be excited to build to jobs@falconer.ai!
Sway is rebuilding representative democracy from the ground up. Our platform converts grassroots social support into real electoral leverage, giving political organizers viral, bottom-up tools to mobilize voters. We’ve shipped our MVP and are beta-testing ahead of the 2025 election cycle.
What you’ll do
* Build core features across a modern TypeScript stack (Next.js + React frontend, real-time GraphQL via Hasura, TS backend)
* Make architecture, infra, security, privacy, and product decisions as part of a small, but tight-knit founding team.
* Scale our social-graph and verification systems while running rapid product experiments with users.
Who you are
* Excited to be onsite in San Francisco, 5 days a week with an early, mission-driven team.
* Comfortable moving fast in both frontend and backend TS.
* Experienced in shipping quickly and robustly at an early-stage startup—or are eager to learn.
* Motivated by high-impact civic tech.
Why Sway
* Competitive comp with medical, dental, vision, and life insurance.
* Flexible PTO.
* Direct ownership over technology that can reshape American politics.
* See more about Sway and the role here: https://swaynetworks.notion.site/Full-stack-Engineer-Job-Des...
Apply: Email kayla@sway.co with your resume and a few lines on why this mission excites you.
Roles: Computer Vision Engineer
We are building software to help landscapers design, sell and maintain beautiful spaces. Millions of acres a year are converted into urban dwelling spaces, and we want to help make them as beautiful and as ecologically friendly as possible.
Duranta was founded a year ago. We are well funded and are expanding our team after having spent the last 9 months building an MVP and validating the market. We are looking for a talented computer vision engineer to complement our team. As the second CV/ML engineer you will have the opportunity to work closely with the founders & our CV/ML advisor Amir, shape the CV/ML architecture and make a significant impact on the company’s product and trajectory.
CV/ML: Python, PyTorch, Marsk2Former running on AWS
If you're interested in working with us, please apply online. Mention you're from HN and let us know why Duranta is of interest and what you've been working on lately.
For context, a link to Amir's profile (our CV/ML advisor): https://people.epfl.ch/amir.zamir
Please apply on: https://jobs.lever.co/getduranta
The real estate industry is undergoing a massive shift, and AI is about to reshape how millions of agents operate daily. Sidekick is first to market with a verticalized solution, has strong early traction, and is backed by leaders who’ve built and sold category-defining products.
We’re building the AI-powered operating system for residential real estate agents to streamline workflows, boost productivity, and unlock new growth opportunities. Sidekick combines advanced large language models with deeply integrated domain-specific tools to handle the complexity of real estate—from data to transaction management and daily operations. We’ve hit product-market fit and are growing rapidly. Here’s why now is a great time to join Sidekick:
Accelerating Product Market Fit We’re solving urgent, high-value problems for real estate professionals and have seen rapid adoption from top agents, brokerages and MLSs across the U.S.
Industry-Defining Partnerships We’re working hand-in-hand with some of the most forward-thinking brokerages and real estate leaders to shape the future of AI in the industry.
Elite, Cross-Functional Team Our team includes seasoned operators, engineers, designers, with deep industry experience.
Generative AI, Purpose-Built At Sidekick, engineers work directly with foundation model APIs and our own proprietary data pipelines to build AI-native workflows that reimagine how agents operate—from lead to close.
Compensation & Ownership We offer competitive salary, generous equity, and the opportunity to make a foundational impact at an early-stage company with breakout momentum.
This is a high impact role that requires both strategic thinking and hands-on execution, reporting directly to the CTO.
Apply here! : https://wellfound.com/l/2BoGfr
Cantina, founded by Sean Parker, is the first social AI platform, empowering users to create lifelike AI characters that interact across the web. Work on building cutting-edge AI bot platforms for our social app. Develop innovative features like AI-generated media, text-to-speech, and voice interactions.
Stack: Swift, UIKit, Objective-C, AVFoundation, custom graphics, UI development, and backend interaction.
Email: bernadette@cantina.ai to schedule a chat.
Apply at: https://jobs.ashbyhq.com/cantina/72fc1228-c538-41f6-a7ee-c54...
Help Us Shape the Future of Music Education
LabAMI’s mission is to harness technology to make learning music more accessible, intuitive, and meaningful for everyone, while keeping the essential human touch at its core. We empower teachers to expand their impact, help students and parents chart inspiring learning journeys, and connect a global community of musicians, educators, and enthusiasts.
As part of the founding team, you’ll take ownership of our evolving iOS app, collaborating closely with the founders to drive product vision and feature development. You’ll play a key role in shaping an engaging, community-driven platform that supports both educators and learners. As an early team member, your voice and skills will directly influence our product, culture, and company trajectory.
What We’re Looking For - Strong skills in at least one programming language - Passion for our mission and excitement to work in an early-stage team - Ownership mindset and ability to thrive in a collaborative, fast-paced environment - Preferred: iOS experience (Swift/SwiftUI/UIKit/etc.); shipped consumer apps
This is a remote, equity-only role with a mission-driven, flexible team that cares deeply about music and technology.
Apply here! https://forms.gle/tmD8NDunyFhkpdPk7
We're building the first AI-enabled regulatory platform for drug development. The existing processes to submit regulatory submissions to government bodies are extremely time consuming and expensive (plus no one likes paperwork). We're building a SaaS platform powered by LLMs to dramtically reduce the time spent producing regulatory documents (97% reduction in current benchmarks).
We're looking for a backend engineer to join our team to work on our backend service, data pipelines, and production LLM capabilities. Apply at https://job-boards.greenhouse.io/weave/jobs/4003308009
We run django + postgres + redis + celery.
Viam helps companies unlock the power of AI, data, and automation in the physical world. We provide a single platform for engineers of all disciplines to solve problems together and build solutions across robotics, climate tech, marine, industrial manufacturing, Food & Beverage, and more. Founded in 2020 by former MongoDB co-founder and CTO Eliot Horowitz.
As a key member of our Infrastructure team, you will contribute to developer tooling used both internally and by external users, support the reliability and performance of our systems across multiple platforms, and play a key role in unblocking our engineers and our customers to ship quickly and confidently.
Any interest? Please apply at https://grnh.se/p2mzkspt4us
Trunk is an a16z funded dev tools startup, redefining software development at scale. We aim to solve problems that developers hate by bringing the tools usually built in-house at the best engineering orgs to every development team. We've built 4 products so far and have plans for more:
* Code Quality: a universal linter/formatter, available as a CLI, VSCode extension, and CI check;
* Merge Queue: a merge queue, to ensure that PRs are tested in order before they're merged; and
* CI Analytics: detects, quarantines, and eliminates flaky tests from your code base. Prevents flakey tests from producing noise and blocking CI.
*Flaky Tests: Detect and eliminate Flaky Tests.
Our tech stack:
* Frontend: Typescript, React, Redux, Next.js
* Backend: Typescript, Node, AWS, CDK, k8s, gRPC
* Observability: Prometheus, Grafana, Kiali, Jaeger
* CLI: C++20, Bazel
* VSCode Extension: Typescript
* CI/CD: GitHub Actions
* General: GitHub, Slack, Linear, Slite
Estuary is a VC-backed startup building the next generation of real-time data infrastructure. Our platform, Estuary Flow, combines change data capture (CDC), stream processing, and declarative configuration to unify real-time and batch data movement.
We’re open-source, developer-first, and focused on making data engineering radically simpler.
We’re a small, high-trust team with deep experience in distributed systems, stream processing, and data tooling — and we’re growing.
We’re hiring for:
Senior Backend Engineer (Integrations) – 5+ years of backend engineering experience. Own and scale high-impact systems that power real-time data pipelines. You’ll work on complex integrations with external APIs and databases, improve our internal connector frameworks, and tackle deep challenges in performance, reliability, and developer experience.
Backend Engineer (Integrations) – 2–4 years of backend experience. Help expand and maintain our catalog of real-time data connectors using Python. You’ll work closely with experienced engineers to build and optimize integrations with third-party systems, while deepening your skills in infrastructure and stream processing.
What we’re looking for:
We’re looking for engineers who care about building reliable, maintainable systems and enjoy working with complex APIs and data flows. We value curiosity, clear communication, and a willingness to learn.
Bonus points for experience with CDC tools, open source contributions, or fast-paced startups.
To apply: Email your resume to careers@estuary.dev
Compass is an open-source weekly calendar built for ambitious minimalists. It helps software engineers reclaim control of their time through structure and community. We’re on a mission to help 188M men reach their potential by 2035. Phase 1: build a system that 100 male software engineers deeply love.
We’re looking for a Senior Backend Engineer to own key features and infra improvements. This is a contractor role with flexible hours, async communication (mostly GitHub), and minimal meetings. You’ll be joining as teammate #3.
Stack: TypeScript, Node, Express, MongoDB, Zod, Google Cloud Platform
Example projects:
- Finish support for recurring events using RRule
- Add syncing for all Google sub-calendars
- Start integrations with Apple and Microsoft Calendar
- Split monolith into microservices (integration, messaging, maintenance)
You’ll thrive here if you:
- Love working independently and shipping clean, tested code
- Have built real REST APIs and enjoy backend infrastructure
- Care about creating tools that make people better
- Prefer shipping value over perfection
- Communicate well in writing and enjoy working without meetings
Apply: Full JD and how to apply: https://alpaca-ty.notion.site/Senior-Backend-Engineer-Part-t...
Repo: https://github.com/SwitchbackTech/compass
More info: https://docs.compasscalendar.com