Lantern | https://withlantern.com | Software Engineers (Python, Full-Stack) | Full time in New York, NY (ONSITE)

Lantern is building AI-powered revenue intelligence—think autonomous agents that turn cold outreach into warm conversations. Our platform automatically detects buying signals across your tech stack [1], prioritizes opportunities, and helps B2B sales teams focus on deals that actually close. We're an agentic-first startup building with Python, BAML, FastAPI, Next.js, and React, backed by a modern data stack (Postgres, ElasticSearch, ClickHouse, DuckDB). We deploy on Kubernetes/AWS and use Temporal.io for workflow orchestration. We're hiring software engineers who want to work on cutting-edge AI and agentic systems. You'll translate complex customer needs into scalable architecture, optimize AI model efficiency through prompt engineering, and ship features that directly impact how revenue teams operate. We value ownership, bold ideas, and people who want to push boundaries.

This role is based in our Manhattan office (4 days/week in-person). We offer full health and dental coverage. Apply here: https://forms.gle/kei5mddiajkdyn3fa I'm Maksym. If you're excited about agentic AI and reshaping B2B sales, shoot me a note at Email is hidden.

Ursa Major | https://ursamajor.com | Entry-level Software Engineer | $95,000 - $130,000 Base | Full-time | Hybrid in-person in northern Colorado, US

Ursa builds propulsion for aerospace and defense, so... rocket engines.

My team works on software and process problems across the company, but we specialize in the data system used by development and test teams. We work on anything from data backhaul, post processing, and anomaly detection to the frontend that lets them plan and manage test campaigns and do data analysis. The data plane is built on the FDAP stack and we have some super interesting work upcoming to integrate some of our data post-processing pipeline with our custom DataFusion UDF library. Overall stack is Rust, Python, Typescript.

Role is hybrid in-person in northern Colorado. Our headquarters is also our manufacturing and test facility, so a super interesting place to spend a couple days a week with amazingly smart and engaged stakeholders. People generally commute from Denver, Boulder, or Fort Collins, all great places to live.

Only open to US citizens or greencard holders due to export laws around rocket engines. I’m the HM so feel free to ping me with any questions. https://ursamajor.com/careers/software-engineer/

Bedrock Data | Backend Engineer | Menlo Park, CA (Onsite) | bedrockdata.ai

At Bedrock Data, we are building next-generation data security platforms. Our backend engineering team is responsible for: Large-scale distributed systems to handle petabytes of data in a scale-out architecture. Stack includes Golang, Neo4j, AWS (Lambda, SQS, S3, DynamoDB), GraphQL, Typescript/React

Please apply here: https://jobs.ashbyhq.com/bedrock

New Lantern | https://newlantern.ai | Software engineers (frontend and backend product engineers) | Full time in San Francisco, CA (ONSITE)

New Lantern is building an AI radiology resident—think Cursor for radiologists. Our application integrates the three software tools radiologists use all day [1], together with AI, to create a platform that saves radiologists toil and lets them focus on reading images and finding disease.

We are a series A startup with ~15 engineers (~25 total staff), have live customers generating revenue, several years of runway, and are backed by Benchmark, Anthropic, and other great investors.

We're hiring for several engineering roles. You'll work directly with our founder/CEO, our staff radiologists, and our end users to build a product that radiologists rely on daily. You'll have real ownership and autonomy, and ship meaningful work frequently. Learn more and apply at https://careers.newlantern.ai

I'm Steve, New Lantern's Head of Engineering. If you're interested or want to learn more, shoot me a note at (my HN Email is hidden.

[1] a radiology image archive & viewer, a medical report dictation system, and work management system

foam.ai | Founding Engineer | $180-$300k | 0.25%-2% | SF (onsite) | Full Time

foam is building a new observability stack that captures, traces, and links everything, purpose-built for AI. We use this foundation to feed complete context into AI to automatically identify and root-cause breakages across entire systems.

* We’re a five person team. Perla (CEO) was the 5th engineer in the consumer facing team at Affirm (pre-IPO).

* We've raised $9.9M in seed funding from Khosla Ventures, Max Levchin, The House Fund, and South Park Commons

* We’ve got active betas at Orb, Braintrust, Plaid & TogetherAI.

We’re looking for engineers who want to take point and work hand in hand with Perla on one or more of our core systems:

1. The Telemetry Engine - Think of this as a major extension of OTEL custom built to capture signals that have historically been inaccessible to humans.

2. The Root Cause Analysis Engine (aka Solver) - This is currently an agent swarm, but evolves every week in search of better and better root cause analysis.

For a bit more on the role, check out: https://foam.ai/careers

If putting an end to awful on-calls and building a system that can deliver self-healing software is exciting to you, send an email to luke -at- foam dot ai with your resume and mention you came from HN.

Pump Up | https://pumpup.com | React Native (Expo) Engineer | Remote | Full-time

We’re a small, technical founding team in based in SF building an assistant for tradespeople — electricians, plumbers, contractors. Our app turns job site voice notes and photos into structured job records, quotes and invoices. We’re seed-funded, ship fast, and spend a lot of time with users in the field, building practical AI that saves people real hours every week.

We’re hiring a React Native engineer to own big chunks of the product across iOS, Android and Web. You’ll work directly with the founders and take lead on the mobile client. If you like autonomy, fast iteration, and shaping product you’ll fit right in.

Experience with React Native Web, native media pipelines, or AI workflows is a bonus. The role is remote, but some overlap with PST is important. Compensation ranges depending on location.

See https://pumpup.com/careers or email me directly at Email is hidden if you want to build tools that make real work easier.

Freeform (http://freeform.co ) | Software Engineers | Full-time | Onsite | Hawthorne, CA (Los Angeles County)

Freeform is deploying metal 3D printing factories at global scale and setting a new frontier in manufacturing. With AI, GPUs, and FPGAs working in tandem, our system monitors and corrects every microsecond of the process, delivering a level of precision, speed, and quality that’s never been possible—until now. This isn’t just an improvement; it’s a leap forward in how complex metal parts are made, with the ability to revolutionize industries like aerospace, defense, automotive, energy, and beyond. We are backed by top VCs including NVIDIA’s NVentures, Founders Fund, and Threshold Ventures.

It’s a small, tight-knit team and you’d have the opportunity to own significant and impactful greenfield projects throughout the entire development lifecycle and much more. Our software team comes from the likes of Google, SpaceX, and Apple, and believe in taking a first principles approach to solving hard problems.

A glimpse into our software landscape - https://youtu.be/nfwqarukd5i?si=mp17qdkbxvf8qpzn

Our feature in TechCrunch! https://techcrunch.com/2024/10/22/ex-spacex-engineers-land-1...

+ Lead Software Engineer (Full Stack Enterprise) - https://grnh.se/btzdox7q3us

+ Senior Software Engineer (Edge Data & Telemetry) - https://grnh.se/3qf4q3bd3us

+ Software Engineer (Edge Data & Telemetry) - https://grnh.se/lm2n1a5h3us

Staff + Principal Product and Distributed Systems Engineers (Multiple) | Base: $200,000 - $250,000 USD

Want to work full-time, in-office in New York City, with some of the worlds brightest minds? Not to mention tons of perks: Equity/Bonuses/Unlimited PTO, etc.

Our new stealth startup just landed $15M in funding and is Looking for top nerds who live for ai-security battles and low-latency, high-throughput challenges and might be intrigued by a small, elite team with founding-level ownership…

We move fast are backed by top-tier investors and leadership who believe this will redefine how organizations and people protect themselves. It’s the kind of environment where deeply technical engineers get to build mission-critical systems with massive real-world impact from day one.

Please reach out directly for more info: https://www.linkedin.com/in/christina-kayler/

Autokroma.com | C / GPU / AI dev workflows | HYBRID REMOTE-ONSITE | Porto / North of Portugal

We do audio video software : video editing plugins, web panels, GPU visual effects, encoders, decoders, AI assisted development & testing. All levels are welcome. You will work close to the code, users requests, whole UX in general, I try to minimize the layers between developers, products and final users. If any of those topics are of interest to you, and you're around Porto to meet me : send me an email, the first part of the email is "jobs" and after the @ the domain name. Tell me what you're looking for nowadays, a previous bad work experience you'd like to avoid and a good work experience that inspires you for the future.

Rapport | Founding AI Engineer + Founding Data Engineer | REMOTE (US) | Full-time | USD$160-220K+

Rapport is fixing healthcare's broken payment infrastructure. Hospitals lose billions annually to opaque payer rules and outdated contracts. We're an AI driven platform that ingests contracts, claims, and policies at scale, transforming them into real-time pricing intelligence to help get providers paid what they deserve.

We are backed by top tier investors and already have one of the largest RCM operators in the country as our development partner. Founded by a healthcare tech veteran with two prior exits. This is a chance to be a true founding team member with meaningful equity and direct impact on product and company direction.

Role 1: Founding AI Engineer – Claims Pricing Intelligence Build production pricing engines that transform messy healthcare data into accurate claim prices. Think of it like playing a complex game: interpret intricate payer rules, combine them into working logic, and validate at scale. Design data pipelines for PDFs/CSVs/APIs, create business logic combining rules based systems with ML validation, and build explainable systems where every decision is traceable. Thanks to our partnership, you'll work with massive real world datasets from day one. Stack: Python, SQL, FastAPI, LLMs and Agentic frameworks.

Role 2: Founding Data Engineer Architect our data platform from scratch. Build fault tolerant pipelines using Databricks that handle diverse sources, design normalization layers for healthcare data, and implement observability for production reliability. First data hire, you'll shape our entire data strategy. Stack: Python, SQL, Databricks, Azure/AWS, Airflow/Prefect.

Rapport is a remote only company with quarterly in person sessions. Significant equity + competitive compensation.

Apply: Email is hidden with resume or LinkedIn.

Please note we are unfortunately unable to sponsor visas or hire candidates outside of the US at this time.