SpruceID (YC W21) | REMOTE (US-Based Preferred) | Full-Time | spruceid.com

Spruce lets users control their data across the web. Instead of users logging into platforms, we believe platforms should request to access data vaults controlled by users.

The demand for trusted digital ID is accelerating as AI deepfakes begin to destroy most of the ways we use to verify identity today. How private or secure is it to hold your driver's license or passport up to a webcam to get a bank account? Was it ever private or secure? Stable diffusion can break so much of this already. Society will need trusted digital IDs and credentials. Our mission is to allow them to be controlled by individuals, with safeguards to prevent descents into surveillance states and checkpoint societies.

We are the main implementers of category-defining initiatives such as the digital ID program for the California DMV, and the verifiable digital credentials program in Utah. We are private sector participants in NIST's National Cyber Security of Excellence initiative for privacy-preserving digital ID.

Today, we are hiring highly capable engineers who care about making a real impact in improving public services, digital autonomy, and user privacy for the world. We work closely with public sector agencies, and everyone on our team has a high regard for those in the public service. We have a strong engineering culture. We are not a SaaS product or AI wrapper, and our roles are not for the faint of heart. You will be expected to work hard and learn a lot in this role.

Our engineers are incredibly ambitious. On any given day, they may write great Rust/C#/TypeScript, deal with mainframe dumps, read policy documents, respond to technical RFIs/RFPs, manage on-prem environments, implement new NFC + Bluetooth protocols in Swift/Kotlin, create CI/CD processes that enforce W3C accessibility guidelines and i18n requirements, rewrite lost specs from disassembled binaries, figure out stablecoin payments, and design new protections for public key infrastructure. It is a team effort, and people with T-shirt shaped skills are able to collaborate and learn a ton from each other every day.

The potential impact of this work cannot be understated, and this is not the right job for you if you want to "join a cool new AI startup" and make a fast exit. However, if you care about our mission, then you will have the opportunity to make meaningful outcomes for society that will make you feel proud.

See our roles here: https://jobs.lever.co/sprucesystems/

If you're interested in this topic, we recently proposed new models for identity in the financial sector:

https://blog.spruceid.com/modernizing-bsa-and-aml-cft-compli...

If you feel very strongly about what we do, please email me directly with your reasons and resume at wayne AT spruceid.com.

Radar Labs | Software Engineers (SRE, data platform, backend, full-stack, mobile) | Remote (US), NYC | Full Time | https://radar.com - 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

Boundary (YC W23) | Software engineer (compilers) | Seattle, USA (in person) | Full-time

We are building a new programming language (BAML) to build AI agents -- the "typescript" for LLMs. We are open source: https://github.com/BoundaryML/baml

A big part of this language is all the tooling around visualizing non-deterministic code, visualizing code, and getting great observability (e.g. our language has type information at runtime unlike TS).

We are looking for engineers with experience with Rust, programming languages, and/or compilers. Any amount of experience is fine.

To apply: send an email to aaron@boundaryml.com with your resume and mention you came from HN

Oneleet (YC S22) | Multiple Roles | US & NATO Countries | Remote | Full-time

Oneleet is an all-in-one cybersecurity startup that has built its own Attack Surface Monitoring (ASM), Code Scanner, Device Monitoring, and Compliance Platform. We just raised a Series A and are growing at an rapid pace and working on some very exciting projects.

What we're looking for:

Strong problem solvers who can work independently in a remote environment - Security-minded professionals passionate about building robust, scalable systems - Comfortable working during Eastern Time

Tech stack: Go, TypeScript, React, Kubernetes

Open roles

* Software Engineer, Cloud Security Posture Management

* Application Software Engineer, Endpoint Security (macOS experience preferred)

* Fullstack Engineer, AI Implementation

* Security Program Manager (US/EU Timezone)

We offer:

- Competitive salary - Equity in a fast growing cybersecurity startup - 100% remote work - Company offsites every other quarter (past offsites have been in The Netherlands, Portugal and Italy)

If you're interested in joining our team, please reach out to samuel<at>oneleet<dot>com with the subject line "HN: <Job Title>" and your resume attached.

Alternatively, you can also apply at https://jobs.ashbyhq.com/oneleet

Stellar (https://stellarcs.ai) | Founding Software Engineers | Amsterdam, the Netherlands | Full-time | No Visa Sponsorship

Stellar is building the go-to AI voice agent platform for customer support, enabling incredibly human-like customer service over the phone. We're a young and rapidly growing startup that has already proven traction, with a number of well-known companies among our initial customers.

To see some of our AI voice agents in action, see https://www.stellarcs.ai/demo-showcase

We're looking for founding software engineers to help us scale Stellar's platform globally. As one of the first members of our engineering team, you’ll play a key role in Stellar's journey and have the opportunity to help shape our architecture, engineering culture and product and engineering roadmap.

Tech stack: Go, Node.js, Typescript, React, Next.js, Encore Cloud, GCP

What you’ll do:

- Build performant APIs and backend services in Go and Typescript (Node.js)

- Develop Stellar's frontend in React, TypeScript and NextJS, to allow companies to effectively design, test, deploy and monitor their AI voice agents

- Design a scalable, fault-tolerant system architecture that can handle large volumes of concurrent real-time audio conversations & agent interactions while maintaining low latency

- Work on Stellar's AI agent framework, at the intersection of software engineering and AI engineering

- Design and implement a platform that meets enterprise standards in terms of security, compliance, resilience and data privacy

- Build API integrations with external systems to enhance the capabilities of Stellar's agents

- Help shape the early engineering culture as one of the first hires of a young and growing tech startup

Why join: you'll be joining at a pivotal time in our growth, in a role with a high degree of ownership and strong growth potential. Join a small but talented team, coming from high growth startups and scale-ups such Framer, MessageBird, Adyen and Crisp.

More details about the role here: https://www.stellarcs.ai/careers/software-engineer

Apply: Send us an email at info@stellarcs.ai, and mention you came from HN

RepSpark | Engineering & Product | REMOTE (US) | Full-Time | https://www.repspark.com

RepSpark is the top SaaS B2B wholesale e-commerce platform for brands in apparel, footwear, and accessories. For example, we're how golf courses across North America and Europe purchase brands like Titleist, Peter Millar, Kjus, etc.

Stack: C#/.NET (Rider on macOS), GraphQL, React, TypeScript, PostgreSQL, AWS (CDK), GitHub Actions.

We're actively hiring:

* Senior Product Engineer (Full-Stack): Own outcomes across React/TS + C#/.NET + Postgres; help modernize legacy .NET Framework to .NET 8; build/scale ERP ETL & integrations. https://www.repspark.com/senior-product-engineer-full-stack

* Product Manager - Integrations: Own the integrations roadmap; prioritize ERP connectors (NetSuite, SAP, etc.); partner closely with engineering. https://www.repspark.com/product-manager

Email careers@repspark.com with your resume/links (GitHub, portfolio).

Artificial Analysis | https://artificialanalysis.ai | Full Stack Engineer, ML Engineer, Member of Technical Staff | Onsite in San Francisco or in Australia/New Zealand | Competitive Salary + Equity

Artificial Analysis is an independent AI benchmarking and insights provider. We benchmark AI to help engineers and companies understand AI and make informed decisions regarding which AI technologies to use. We are fast growing with a team of 20 and have backing from investors including Nat Friedman, Daniel Gross & Andrew Ng.

We are hiring for four roles: 1. Full Stack Engineer: Full Stack Engineer to support our benchmarking of AI and with communicating these benchmarks to our users. Proficiency in Typescript & Python required. Familiarity with LLM APIs preferred. Tech stack: Javascript/Typescript, Node.js, React/Next.js, Python.

2. ML Engineer: ML Engineer to support our benchmarking and evaluation of AI software stack. You will design and run benchmarks and evaluations of different AI models. Strong analytical skills and proficiency in Python required.

3. Member of Technical Staff: You will design evaluations of different AI models and work to translate technical insights to analysis that helps companies navigate AI.

4. Product Manager (AI Media Generation): You'll work closely with us to develop and enhance our media generation (Image, Video, Speech, Music) arenas and leaderboards, contributing to product strategy and execution at the intersection of creativity and AI.

Apply at hiring (-at-) artificialanalysis.ai with your resume, github and dot points on relevant experience (including anything you've built). Add | HackerNews to email subject line.

Stellar Science | Hybrid (USA) Albuquerque NM, Washington DC (Tysons VA), Dayton OH | Full time, interns/co-ops | U.S. citizenship required | https://www.stellarscience.com

Company: We're a small scientific software development company that develops custom scientific and engineering analysis applications in domains including: space situational awareness (monitoring the locations, health and status of on-orbit satellites), image simulation, high power microwave systems, modeling and simulation, laser systems modeling, AI/ML including physics-informed neural networks (PINN), human body thermoregulation, computer vision and image processing, high performance computing (HPC), computer aided design (CAD), and more. All exciting applications and no CRUD. We emphasize high quality code and lightweight processes that free software engineers to be productive.

Experience: Other than interns, we currently require a Bachelors degree in physics, engineering, math, computer science, or a related field, plus preferably 3+ years of work experience, or a Masters or PhD in lieu of work experience. (Roughly 25% of our staff have PhDs.)

Technologies: Mostly C++23, Qt 6.9, CMake, git, OpenGL, CUDA, Boost, Jenkins. Windows and Linux, msvc/gcc/clang/clangcl. AI/ML and analysis projects use Python and C++. Some projects use Java or Typescript/React.

Apply online at https://www.stellarscience.com/careers/.

Crew Capable AI | Founding Engineer (Co-Founder Track) | Remote (US Based)

Automating order entry for mid-market manufacturers via AI. Working MVP, first enterprise contract pending ($500M company), entering implementation phase. Looking for employee #2 to own technical development and grow into co-founder.

What You'll Do: Build ERP/EDI integrations, implement LLM pipelines for document parsing and entity extraction, architect vector search/RAG for product catalog matching, own 90-day customer implementations, scale the platform.

Requirements: 3+ years full-stack (Python/React), experience with API integrations or ETL, comfortable with LLM orchestration, can work independently, genuinely interested in B2B operations.

Tech Stack: Next.js, TypeScript, Python, PostgreSQL, Gemini API, vector databases, AWS, ERP/EDI systems

Structure: hourly contractor (30-60 day trial) → co-founder equity if mutual fit.

Apply: daly@CrewCapable.com - subject "HN Founding Engineer"

GoGoGrandparent (YC S16) | FULLY REMOTE | Full-time | Able to work 4+ hours overlap with mainland US (global) | 1 x Tech Lead Engineer + 3 x Senior/Staff Backend/Full-stack/Frontend Engineers | $100k-$200k (partially location-dependent)

Build high-quality, robust engineering at the rarest of things - a Silicon Valley startup that is both wholesome AND profitable. We have 8-figure revenue, are YC-backed, and growing fast.

Tech stack (required): Back-end (Node, Typescript, MySQL, REST* / GraphQL), Front-end (Vue.js), deploy (AWS, Docker/K8s) Minimum 5 years experience (with Node or Vue).

2-stage interview process.

If you want to help older adults and people with disabilities, send your LinkedIn/CV to recruitment@gogograndparent.com (keep it brief) or apply at https://www.ycombinator.com/companies/gogograndparent/jobs

ConductorOne | ONSITE (SF / PDX) | Full-Time

ConductorOne is building the platform for identity security and least privilege automation — helping companies secure access to everything, without slowing people down. Our engineering culture emphasizes small, high-ownership teams that deliver measurable impact and move quickly.

We’re hiring across many areas:

  - Software Engineers – We’re growing our product development teams in SF and Portland.

  - Site Reliability Engineering – We’re looking for SREs and a hands-on SRE manager (SF or Portland) to own reliability, performance, and infrastructure as we scale.

  - Forward Deployed Engineering (FDE) – We’re building a brand-new customer-facing engineering org: we're looking for engineers who want to work closely with customers to modernize and automate identity operations, and a Manager, FDE to lead the team.

  - Governance, Risk & Compliance (GRC) – We’re building a new GRC function and hiring our first Compliance Engineer to help scale our security and audit programs.

We work primarily in Go and TypeScript, on AWS + Kubernetes.

Apply here: https://www.conductorone.com/careers

Found | San Francisco, NYC, REMOTE | Engineering, Data Science, Risk Operations, Growth, Compliance | found.com

We're building the next generation of financial tooling to help small business owners succeed. Our solution blends banking, bookkeeping, taxes and payments into an all-in-one solution to help save our users time, stress and money -- so they can focus on what matters to them; running their business.

https://found.com/careers , or you can reach me directly via jarred@

Tech stack: Ruby on Rails (Kubernetes, GKE), React/Typescript, Capacitor, MySQL, Spanner

Narrative I/O | Senior Backend & Frontend Engineer positions | New York, NY | Full-time | REMOTE (4-hour overlap with EST for backend, US & Canada for frontend) | $120k to $200k USD | https://narrative.io/

Narrative has been building a data collaboration platform designed for simplicity and ease of use since being founded in 2016.

Our primary strength is functioning as a data marketplace where we differentiate ourselves by automatically standardizing data, making platform data accessible through the Narrative Query Language (NQL), giving data providers the ability to define row-level access and pricing policies, and making it easy to deliver data to a variety of destinations using our "Connector Framework".

We operate two flavours of our platform: An AWS-based implementation that runs on our infrastructure, and a Snowflake-based version running inside the user's Snowflake account.

We are a small, remote-first team looking for great developers who want to jump in and take major systems and user-facing features from design to launch. While the company's headquarters are in NYC, the development team currently includes engineers working from the US (California and New York), Canada (Alberta, British Columbia, and Québec), Poland, and Serbia.

In brief, the technologies we use are:

- Backend: Scala, Spark, Apache Iceberg, Apache Calcite, Cats, Cats-Effect, Http4s, FS2, Doobie, Deequ, Axolotl, BentoML, and HuggingFace Transformers.

- Frontend: Typescript, VueJS, Nuxt, Vite, and Cloudflare Pages.

- Operations: AWS (ECR, ECS, EMR, RDS, S3, etc.), Datadog, Docker, Terraform, with some burgeoning use of EKS/Kubernetes.

Job postings and more on information about our team and culture are available at: https://jobs.narrative.io/

Apply by sending your resume to hiring-dev@narrative.io.

Chroma | ONSITE - San Francisco | Full-time | https://trychroma.com Chroma is the open-source database designed for AI. Help build the future of context engineering!

We're a team of 17, all engineers today. We work in Rust, Python, Typescript, and Go.

We're hiring for these areas:

- Database Storage

- Distributed Systems

- Product Engineering

- Platform

- Product Design

What we’ve recently done:

- We built and launched a new search API with hybrid search and sparse vectors

- We built a new sync API that lets us handle ingesting, chunking, and embedding data from sources (we currently support Github repos)

Apply here: https://jobs.ashbyhq.com/trychroma/9ed3aee8-07dd-44e3-9ca1-d...

More details at: https://careers.trychroma.com

Resemble AI | San Francisco Bay Area (Mountain View, CA) | Full-Time

We're creating state of the art AI models, including the leading foundation model for Deepfake Detection. Looking for full stack, frontend and machine learning engineers that would love to create prototypes directly with the founders.

Here's what we're looking for:

Frontend Engineer - We're looking for a Frontend Engineer to build intuitive interfaces for our AI platform. You'll work with React/TypeScript to create exceptional user experiences that make complex AI technology accessible to both developers and enterprise users.

Full Stack Engineer (Onsite only) - We are seeking a skilled Full Stack Engineer with experience with both Javascript and Python to join us. The ideal candidate will have a strong background in building and deploying web applications, a passion for working on cutting-edge AI technologies, and the ability to collaborate closely with our founders to create innovative prototypes.

Backend Engineer - Looking for Ruby on Rails and/or Python Developers to join our backend team. Scale up ML systems, make inference run more efficiently, and expose public facing APIs.

DevRel (Onsite only) - We're looking for a Developer Relations engineer to champion our voice AI APIs and open-source projects within the developer community. The ideal candidate will create compelling demos, technical content, and documentation while helping developers integrate our AI models.

Growth Marketing (Onsite only) - Seeking a data-driven growth marketer to accelerate adoption of our AI models across enterprise and developer segments.

If interested, reach out directly to me: zohaib [at] resemble.ai

Findigs | Full-time | NYC | 3x/week in office M,T, Th) | findigs.com

At Findigs, we’re transforming the rental experience — making it fairer, stress-free, and more convenient by changing the fundamentals of renting.

We build high-scale applications that streamline renting for millions. Our modern tech stack includes TypeScript, Python, Node.js, React, and scalable cloud infrastructure.

We foster a collaborative culture where engineers have high ownership and autonomy, taking features from concept to deployment.

Join our sharp, supportive, and mission-driven team in our newly renovated SoHo/NoHo office.

Open role: Senior Software Engineer —> Apply here (https://jobs.lever.co/findigs/3b39616d-223f-4326-a500-f804c3...)

Base Salary of $180k - $210

Pre-IPO Equity

401k Matching up to 4%

Unlimited PTO

Lunch in office every day, home office setup stipend, monthly gym stipend

Count | Senior Software Engineer | REMOTE within UK/Europe/US East Coast | Full-time | https://count.co | £100-140k + Equity

Count is like Jupyter, Tableau and Miro combined in one tool. Some of the world's leading data teams use it for everything from iterating data models and performing in-depth analyses to creating process flow maps of their entire business.

We're a small team looking for experienced software engineers who are interested in tackling deep technical challenges in the data analytics space.

For the best possible user experience, we have developed various technologies in-house, including a custom WebGL rendering engine, our own data visualization library, and a reactive SQL/Python notebook and database query framework.

Example projects: leveraging agentic workflows in data exploration, accelerating rendering using quadtree tiling, extending interactivity and customizability of visualizations, developing serverless frameworks for executing database queries at high concurrency.

Our tech stack: TypeScript, Python, Node, WebAssembly, WebGL, Apache Arrow/Parquet, DuckDB, Kubernetes, React.

For more details and to apply: https://jobs.ashbyhq.com/count

Scorecard | Founding Engineer, Founding UX Designer, Founding GTM | SF, CA ONSITE | Full-time

Scorecard is building the leading platform for testing, evaluating, and monitoring AI applications. We help teams ship reliable AI products faster—from prototype to production. Our customers include developers and enterprises building with LLMs who need confidence their AI agents perform as expected.

We recently raised $3.75M in seed funding from Kindred Ventures, Neo, and angels from OpenAI, Google, and Meta: https://www.businessinsider.com/scorecard-raises-millions-ki...

See how we're helping enterprises like Thomson Reuters ensure their AI agents are production-ready: https://www.thomsonreuters.com/en-us/posts/innovation/from-t...

Tech Stack: Full TypeScript w/Next.js, Express, React, PostgreSQL, and agents like Claude Code/Gemini review.

We're an early-stage, fast-growing team tackling the most pressing problems in the AI reliability space. If you're excited about being a founding team member at a company defining how the industry evaluates and optimizes AI systems, we'd love to hear from you.

Open Roles:

- Founding Software Engineer: Build the core platform that helps developers test and evaluate AI agents at scale - Founding UX Designer: Design intuitive experiences that make complex AI evaluation accessible to all developers - Founding GTM: Help define and execute our go-to-market strategy as we scale with customers

Learn more and apply: jobs@scorecard.io w/ subject 'HN'

Arcol | Senior Software Engineer | NYC, SF, or Remote (US) | Full-time

Arcol (arcol.io) is a small, high talent density team building the future of building design - a future that's collaborative, fast, and intuitive. We're a web-native, fully collaborative 3d design tool modernizing the experience of architectural design for teams of all sizes.

We're looking for senior engineers with experience in modern web technologies - some of our key technical building blocks are Typescript, Rust, wasm, WebGL - and a strong ownership mindset. Experience with computational geometry, computer graphics, or similar a strong plus. This role sits at the intersection of solving deep technical foundational challenges with shipping a product that solves real problems for real people.

Reach out to me directly at thomas@arcol.io or peruse our careers page (https://www.arcol.io/careers) - we'd love to hear from you!

Schoolhouse | Senior Software Engineer | REMOTE (US time zones) | https://schoolhouse.world/

Schoolhouse.world is a non-profit founded by Sal Khan with the mission of connecting the world through learning. Our peer tutoring platform brings genuine human connection to online learning in a world that’s being rapidly disrupted by AI. So far, we’ve reached 150k+ learners from 180+ countries and plan to grow to millions.

You'll be one of six engineers owning full-stack projects from ideation to execution and making an impact on learners and tutors across the world. Our ideal candidates move quickly, have good taste in code, and are AI-forward (eg experience building LLM evaluation frameworks) but still believe humans bring deep value to engineering and education.

Stack: TypeScript, Node, Next.js, React, PostgreSQL, AWS

Compensation: $175K-$200K

Perks: Fully remote, flexible hours, competitive salary + benefits, work-from-home stipend, semesterly retreats

Apply here: https://jobs.ashbyhq.com/schoolhouse-world/4a6b99f6-9f70-4f1...

Ask questions: evan [at] schoolhouse.world