Obsidian Security | REMOTE (US-Eastern hours ideal) or ONSITE (Palo Alto / Newport Beach) | Full-Time | VISA OK | Salary $149k–$208k + equity

We secure the SaaS apps—Microsoft 365, Salesforce, and hundreds more—where modern business happens, blocking breaches *in real time*.

Why Obsidian?

  - Founded 2017; backed by Greylock, Norwest, IVP, and others, now scaling toward IPO.  
  - Trusted by Snowflake, T-Mobile, Pure Storage & 200+ enterprises on five continents.  
  - Momentum: $90 M Series C, new AI-driven defenses, expanding partner ecosystem.

Senior Threat Backend Engineer

Own the APIs, event pipelines, and extension logic that power our browser-native security product. Ship to prod the day you merge.

You will:

  - Build & refine threat detections with our security research team.  
  - Stream and enrich event data through Kafka → Postgres/Elasticsearch.  
  - Extend our Chromium-based browser extension (WXT).  
  - Add new SaaS services to the platform; optimize data stores for scale.

Stack highlights:

  - Python + FastAPI / asyncio  
  - TypeScript + WXT 
  - Rust micro-services
  - Kafka
  - Docker/K8s
  - Postgres & Elasticsearch

You bring:

  - 4–6 yrs software engineering (cyber-security a plus).  
  - Deep Python async skills; Kafka & K8s in production.  
  - DB mastery (Postgres + Elastic).  
  - Clear communication & bias toward ownership.

Apply here: https://grnh.se/a646066d8us

Drone startup | Product Engineer (Typescript) | 1 day/week in the office (London, UK) | Citizens of the UNITED KINGDOM only

You'd be working with engineers who previously worked at Google, Amazon, Helsing, Darktrace and an F1 team. We build drones (software and hardware)

We're looking for engineers that straddle real world problems, and use technology as a solution. We prefer personal projects or relevant hobbies, not hard leetcode questions. We value collaboration: pair programming, discussing, teaching and learning from others. We're looking for mission-driven engineers. People who see problems in the world and want to help solve them.

You'd be working with me to build the most intuitive, performant, and modern mission planning and flight monitoring software for drones, and related applications (tools for drone design and manufacturing). For my project, we use React, Tailwind, Node, drizzle-orm, Postgres, SQLite, deck.gl, Python, FastAPI, asyncio, and more. You're allowed (and compensated) to use AI services.

Because we are a small team, you will be noticed and rewarded for performance.

*Please don’t apply if any of these resonate:*

• You prefer narrow ownership—“I only touch the backend or the code I've written”.

• You think it's more about "who you know, not what you know".

• You haven’t actively learned a new tool or hobby in the last year.

If interested, email my temporary email: hn-july25@mail.orth.uk with your CV and some personalised information about why you'd be the right fit.

My personal website, if you want to know who you would work with: tlduck.com

Edit: sorry my original post had a broken email

Roger Healthcare | ONSITE/Hybrid | San Francisco | Senior/Staff Backend Engineer | Full-time

We’re Roger Healthcare — building AI-powered clinical documentation for home-based care. Our product gives overworked clinicians their evenings and weekends back — and raises the standard of elder care across the country.

We’re backed by world-class investors and growing faster than any other company in our space. Our founding team includes AI researchers from Cornell and Amazon Alexa, and we’re constantly shipping new products powered by the latest advances in LLMs and real-time voice tech. We’ve been around for 2 years and are proudly post–product-market fit.

We’re hiring a Senior/Staff Backend Engineer to help us build critical infrastructure from the ground up.

Compensation: $170K – $230K + 0.15% – 0.3% equity https://www.rogerhealthcare.com/careers?ashby_jid=270e56ba-c...

What You'll Do

   Build and own key infrastructure and APIs for real-time AI    voice tools

   Ship 0→1 features using FastAPI, MongoDB/Postgres, and Docker

   Work directly with LLMs and AI models — including fine-tuned voice + vision tools

   Operate in AWS (preferred), and help define scalable infra from the ground up

   Leverage AI-assisted development tools to ship faster and smarter

   Be a senior IC (not a manager), collaborating with world-class engineers and mentoring juniors

You’ll be joining early, shaping core product, and working directly with founders. If you love fast execution, ownership, and building real tools for real people — let’s talk.

Email me at rayyan@rogerhealthcare.com

Or apply directly: https://www.rogerhealthcare.com/careers?ashby_jid=270e56ba-c...

Kharon | Individual Contributor and Data Engineering Leadership Opportunities | HYBRID in London or Madrid or On-site in Denver, CO | Full Time

Kharon is on a mission to revolutionize the current global security landscape. When you look at any major global crisis event, we’re providing intelligence that’s at the heart of those circumstances. We connect the dots in a way that’s meaningful, and we're currently growing our Data Engineering vertical. Operating at the intersection of global security + international commerce Engineering team tackling massive open-source data at scale Stack: Python (Pandas, NumPy, FastAPI), SQL, Spark, Databricks, Neo4j, Elasticsearch, AWS, Docker, K8s

Apply here: https://kharon.com/careers

Baton| Senior Full Stack Engineer | HYBRID |San Francisco, CA | Full-Time

Baton is building software to automate the $800B+ freight industry. We’re a small, fast-moving team inside Ryder (Fortune 500 logistics company), rethinking how freight moves with real-time visibility, automation, and AI.

We're hiring a Senior Full Stack Engineer to work across our Python/FastAPI + React/TypeScript stack. This is a hybrid role (Tues–Thurs in our Hayes Valley SF office). You'll own major projects across the stack, collaborate cross-functionally, and shape tools used at national scale.

What we offer:

- $200,000 – $250,000 base + bonus + long term cash incentives - Startup speed, enterprise scale - Modern stack (FastAPI, GraphQL, Postgres, AWS) - Perks: 401k match, ESPP, great office

Apply at: https://job-boards.greenhouse.io/baton/jobs/4623804007

Trustle (https://trustle.com) | Senior or Staff Backend Engineer | Remote (US) | Full-time | $120k-175k + benefits based on experience

We're building the future of cloud access management - helping companies achieve Zero Standing Privileges through just-in-time access and intelligent entitlement management.

What you'll work on:

- Build intelligent scheduling engines that orchestrate just-in-time access across thousands of cloud resources

- Design AI-powered systems that help customers intelligently request and review access across AWS, GCP, Azure, and SaaS platforms

- Create scalable integration pipelines using durable functions to connect with dozens of cloud providers and enterprise tools

- Develop next-generation data models that map complex permission relationships across multi-cloud environments

- Work with AI coding agents to accelerate development and ship features faster

What we're looking for:

- Strong Python experience (FastAPI is a plus)

- Experience with data modeling and building complex ELT pipelines at scale

- Postgres experience and familiarity with BigQuery

- API design and development expertise

- Comfort with cloud platforms and Identity and Access Management concepts

- Data lake architectures experience is a plus

Reach out to careers@trustle.com

Meedan | Lead Software Engineer (Machine Learning) | Remote | Full-Time or Contractor | https://meedan.com

Meedan is a global nonprofit focused on building open source digital tools and community-led programs that enhance the accessibility, reliability, and distribution of information - when and where people need it most. We also strive to make online ecosystems safer, more inclusive, and more equitable, so that existing pathways for content production and distribution can better serve the needs of all communities, regardless of their location, language, or income.

About the Role:

You’ll be responsible for leading the design and development of a Python-based backend service integrating AI/ML models and structured data systems. The role will require you to design scalable APIs, data ingestion pipelines, and real-time query services that serve AI-powered features across our platform. You will operate with significant autonomy, define the technical architecture, and deliver production-ready systems.

What We’re Looking For:

- 8+ years of professional software engineering experience.

- Strong track record of independently designing and delivering complex backend systems.

- Deep expertise in Python, particularly for backend API services and AI/ML integration.

- Hands-on experience with FastAPI (or comparable modern Python web frameworks).

- Experience integrating AI/ML models into production systems (LLMs, transformers, fine-tuning, etc.).

- Strong system design, data modeling, and architectural thinking.

- Familiarity with scalable ingestion pipelines, asynchronous processing, and event-driven architectures.

- Experience with cloud infrastructure (e.g., AWS), CI/CD pipelines, monitoring, and observability.

- Nice to have: Experience with knowledge graphs or graph databases (e.g., Neo4j).

https://meedan.bamboohr.com/careers/64

Olli Health | Remote or New York | Full-Time | Senior Backend SDE | ollihealth.ai

We are a TechStars NYC ‘24 startup dedicated to modernizing home healthcare with advanced AI tools and we are expanding our team again! These are pivotal hands-on roles that will begin shaping our product from day 1. Last summer we closed our Seed round from top healthtech and AI-focused VCs investors (Cannage Capital, Arkitekt Ventures, and Tau Ventures) and have been moving lightning fast to build incredibly valuable tools in home health.

We are looking for:

- Proven success in the fast-paced 0 to 1 early days of young startups (experience on founding team or pre-seed ideally). Work will be optimized based on your preferred balance, and what gives you energy, but we need someone who is able to gain confidence in the full stack.

- Experience (5 years+) with most of our stack: AWS, PostgreSQL, Python (FastAPI), Pytorch. Role involves devops, data engineering, API design, evals & benchmarking, workflow optimization, etc.

- Able to demonstrate hands-on-keyboard coding chops. Role is primarily IC + collaboration with our team, and room to grow into startup leadership.

- Comfort interacting with ML/NLP and LLM-native data engineering problems

- Experience working with healthcare data (not required but highly valued)

Comp: $165k-$185k annual FTE base comp + equity package. We cover 100% of Health, Vision, Dental, Life insurance premiums.

I’m Olli’s CTO and this position will work directly with me and our core (currently 6-person) engineering team. hiring+hn [] ollihomehealth [] ai - Email me with questions, for a full JD, or to send your CV. No staffing or recruiting firms, please, individuals only.

FastAPI Labs | Design Engineer | Remote

We are the same team behind FastAPI, building FastAPI Cloud.

We're looking for a Design Engineer who can also code frontend (or is learning to), to help us (mainly) make the dashboard the best developer experience possible for deploying FastAPI apps.

We prefer candidates with strong design skills over only strong frontend skills.

Please include your portfolio link or PDF and CV.

Email jobs@fastapilabs.com