Ascento | Zurich, Switzerland | Full Stack | https://www.ascento.ai

Ascento develops autonomous security robots that patrol outdoor areas to detect and report. All in support of security guards. We stay away from conflict, just robots driving circles around buildings in remote boring places. The technical challenges however, are far from boring.

We are looking for a full stack engineer to join as a core member of the off-robot software team. This is the software that plans, configures, operates and creates insights from data collected from the robots. You would work across the whole cloud-stack, consisting of Frontend (React), Backend (Typescript / Go), Infra (Terraform / AWS / GCP).

The cloud software team is still small, meaning you get a chance to help set priorities, guide long-term architectural direction and figure out how to best help our users. We celebrate pragmatism, we work hard to make simple systems and we help each other to hyperfocus.

Sounds like the place for you? Drop an email to sijmen@ascento.ai. I'm curious to read what about this ad caught your interest.

Vibe Kanban (YC S21) | Rust + TypeScript | Open Source | London, UK (onsite) | Full-time | £80–120k + 0.5%

We're building the platform for engineers who spend most of their time planning and reviewing code written by AI. We’re hiring for two senior roles:

Frontend (TypeScript, React): https://jobs.polymer.co/vibe-kanban/36855?source=hn

Backend (Rust): https://jobs.polymer.co/vibe-kanban/36873?source=hn

The project is open source — check it out here: https://github.com/BloopAI/vibe-kanban

AllSpice | https://allspice.io/ | Boston, MA / SF Hybrid or Remote | Full time (US timezones) | Mid/Sr./Principal/Staff | Golang, Vuejs, Rust, Python

At AllSpice, we're building the future of hardware development and collaboration, applying modern software design principles to the hardware industry with design review, automated test, and AI (think GitHub + copilot for hardware). AllSpice is unlocking the next generation of smart vehicles, IOT devices, rockets, medical devices, robotics, and much more.

Read more about our latest Series A announcement in TechCrunch (https://techcrunch.com/2025/06/23/allspices-platform-is-the-...)!

We have a highly capable, tight-knit, remote-first team with a flex office in Somerville, MA and SF. We strongly value continuous communication and personal development. See more on our careers page https://allspice.io/careers

We’re hiring primarily for:

Director of AI and Data Architecture - You'll own and improve our data architecture for our AI product for circuit design. You should have proven experience owning major components of an agentic production software architecture. This is a "player/coach" role, in charge of the architecture and supporting roadmap with our PM, but also mentoring, reviewing and at times implementing new AI solutions. https://jobs.ashbyhq.com/allspice/c1dc606d-88d3-4662-985b-70...

Sr/Principal SW (Go, TS) - You'll take a major ownership stake in our full-stack web application, which includes collaborating closely with Product Management to architect & implement complex data rendering, user management, and novel features for hardware engineering teams. https://jobs.ashbyhq.com/allspice/3a80d480-ee07-481d-b5c3-10...

Sr/Principal SW (Python) - You'll take a major ownership stake in our actions automation feature. This includes working closely with Product Management to implement a baseline of automation scripts for ECAD data (see some examples here: https://hub.allspice.io/Actions/), developing better integrations into AllSpice platform, and supporting our AllSpice AI agents.

Product / Growth Lead - Define how we position, launch, and grow AllSpice’s products. You'll shape our brand voice, craft compelling narratives, and create content that inspires electrical engineering leaders and the broader hardware community. https://jobs.ashbyhq.com/allspice/7ffd19c6-1e80-41f5-bcea-29...

Tech Stack: Docker, Terraform, GoLang, Rust, Python, Vue, Typescript, Python

Please include any relevant open-source projects or portfolio in your application.

Recombine | Principal Software Engineer | Remote (UK/EU) | Full-time | https://recombine.ai |

Recombine builds advanced conversational AI agents for Europe's banks, fintechs and marketplace companies.

We're hiring a Senior Solution Engineer, a Principal Software Engineer and a Senior Infrastructure Engineer.

Tech we use: TypeScript, Node.js, Python, Terraform. We are cloud-agnostic.

We don’t sponsor visas at the moment.

See all of our opportunities here: https://recombine.ai/careers/

Abnormal.AI | REMOTE in US, Canada and Singapore) with optional offices in SF & NYC. HYBRID in Bangalore, India | Full-time |

https://careers.abnormal.ai

I'm looking for exceptional full-stack and backend engineers to join my teams at Abnormal AI to fight cybercrime. We have multiple open positions for each of these roles, working in Python, Golang, Typescript and React among other leading edge technologies. If you're looking for personal as well as company growth, you won't find a better company than Abnormal AI.

I'm the Director of Engineering for the Messaging Security Products Division. We build the user-facing products for inbound email security and have many interesting challenges working at massive scale. Please see the following links for more details on the open positions and our general careers page link for all open positions across the company. We are hiring for engineering in other divisions as well!

Engineering Manager Remote - Singapore: https://abnormal.ai/careers/jobs/7497288003?gh_jid=749728800...

Engineering Manager Hybrid - Bangalore: https://abnormal.ai/careers/jobs/7496072003?gh_jid=749607200...

Software Engineer II - Fullstack (4 open positions) Remote - USA/Canada: https://abnormal.ai/careers/jobs/6671235003?gh_jid=667123500...

Software Engineer II - Fullstack Hybrid - Bangalore: https://abnormal.ai/careers/jobs/6577843003?gh_jid=657784300...

Software Engineer II - Backend Hybrid - Bangalore: https://abnormal.ai/careers/jobs/6592675003?gh_jid=659267500...

Software Engineer 1 - Fullstack Remote Singapore: https://abnormal.ai/careers/jobs/7500482003?gh_jid=750048200...

Machine Learning Engineer II Remote - Singapore: https://abnormal.ai/careers/jobs/7509271003?gh_jid=750927100...

Lantern | NYC only, hybrid 4 days a week in office | Senior Software Engineer (mid career - Staff)

Lantern is Series A company, building the future of sales automation with AI agents that actually work. We're replacing the messy patchwork of enrichment tools, intent platforms, and automation software with a single system that does it all—pulling from 150+ data sources to research prospects, verify contacts, and help close deals.

We're a small, focused team tackling hard problems at the intersection of AI and enterprise data. You'll be working directly on the core product, helping us build intelligent systems that can reason about complex sales workflows and make autonomous decisions.

On any given day, you might:

- Build reliable agentic workflows that orchestrate multi-step research and outreach processes

- Design data pipelines that synthesize insights from hundreds of disparate sources into actionable intelligence

- Architect systems that scale gracefully as we handle increasingly complex prospect analysis and verification

- Collaborate directly with early customers to understand how our AI agents can solve their hardest go-to-market challenges

Tools we use:

- Python, LangGraph, BAML, Temporal.io, ClickHouse, Postgres, dlt - TypeScript, React - AWS, Modal.com, K8s, ArgoCD, GitHub Actions

This is a chance to work on genuinely novel problems in AI—not just fine-tuning LLMs, but building autonomous agents that can navigate messy real-world data and make smart decisions. If you're excited about pushing the boundaries of what AI agents can do in production, we'd love to talk.

apply using form, just answer a few questions

https://forms.gle/j7gDnVDHSEkmaLBQ6

Reffie | Multiple Roles | Toronto, Canada & Austin, Texas (ONSITE/HYBRID) | Full-time

Reffie is the next-generation workflow and data analytics platform for residential real estate owners, operators, and property managers. Antiquated software causes renting to be a painful experience for everyone involved. Our mission is to streamline rental communications and house families faster. https://reffie.me/

Our backers include some of the most well-respected early-stage VCs and investors, including Haystack, Redbud, and Trust.

Open roles:

* Full-stack Eng (all levels as long as you have the requisite exp): https://reffie.me/jobs/swe-fullstack-toronto

* Applied Machine Learning Eng (all levels as long as you have the requisite exp): https://reffie.me/jobs/swe-ml-toronto

* Growth Lead: https://reffie.me/jobs/growth-lead

Tools we use: TypeScript, React, Python, FastAPI, AWS, Docker, Lambda, Terraform, FCM, Postgres

Why us: For engineers - we are among the most interesting companies building in person in Toronto today. We bring a Silicon Valley speed to Toronto's startup ecosystem.

For growth/sales - we have been growing 18% MoM for the last 10 months straight. It's an exciting time to join.

Apply by emailing careers [at] reffie [dot] me with role + HN in the subject line. More instructions in each job link.

Pomelo Care | San Francisco, NYC, Remote - USA ONLY with Work Authorization | Software Engineer (mid career - Staff)

Pomelo Care is a multi-disciplinary team of clinicians, engineers and problem solvers who are passionate about improving care for moms and babies. We are Series B, with some notable investors like First Round and a16z. As a member of our engineering team, you will have the opportunity to shape the product, codebase, and culture at Pomelo for years to come. On any given day, you may:

- Write clean, elegant code to build new features and keep our platform humming

- Design new systems to enable Pomelo's clinical team to deliver personalized care to an expanding patient population

- Build a great mobile experience so pregnant women and new parents feel they have a support team in their pocket

Tools we use:

- GCP, Kotlin, Typescript, React, React Native, Terraform, Spanner DB, Big Query, DuckDB, Dagster, DBT, K8s

Personally, I've never had so much fun and learned so much at work. This team is phenomenal, so I recommend applying if you're looking to learn a lot and make a big impact in an important space.

Learn more here: https://www.pomelocare.com/careers

HIFI Labs (https://hifilabs.co) | Remote | Senior Fullstack Engineer / Engineering Manager

Join HIFI Labs and work on innovative projects with well known and iconic musicians. Past artist activations include Linkin Park, Jisoo / Zayn,Rüfüs Du Sol, Dua Lipa, and Mike Shinoda. We're looking for a Senior Fullstack Engineer passionate about design, user interactions, and privacy.

You'll work with TypeScript, React/Next.js, Firebase and explore new frameworks like Astro. Experience with Styled Components, continuous deployment and devops is a plus. We also play around with React Native / Expo.

Sound like a fit? Email us at pierre at hifilabs dot co

Normal Computing | Multiple Roles | New York, San Francisco, London, Copenhagen | ONSITE/HYBRID | Full-time | normalcomputing.ai

Normal Computing is building a new thermodynamic computing paradigm to revolutionize AI reasoning and reliability. We're bridging AI to the world's most sensitive industrial and manufacturing applications, starting with semiconductors.

Funded by top-tier VCs, we're shipping real solutions to customers weekly while pushing the boundaries of AI for hardware. Tech stack: Python, TypeScript, React, AWS, Kubernetes, Terraform, PyTorch, Hugging Face

Open roles:

Full Stack Engineer - Build performant web applications for semiconductor companies. Design visualization tools, diagnostic assistants, and test version control systems. 4-7 years experience, expert in TypeScript/React, backend experience in Python. Bonus: semiconductor industry experience, LLMs, visual design.

AI Engineer - Build production systems that understand chip design specifications and generate code. Ship improvements weekly using LLMs, reinforcement learning, and agentic workflows. Experience with production AI systems, document understanding, PyTorch, prompt engineering. Bonus: mission-critical deployments, RLHF/RLAIF, program synthesis.

Sr DevOps Engineer - Design and operate cloud infrastructure for AI products in semiconductor environments. 5+ years DevOps/SRE experience, AWS, Kubernetes, Terraform, CI/CD pipelines. Bonus: highly-regulated environments, Python/Go, Ansible, ML infrastructure.

Physical Design Engineer - Lead SOC implementation from floorplanning to tape-out for our novel thermodynamic computing architectures. Experience with SOC implementation, Synthesis/PNR/STA, Verilog, physical verification. Bonus: Cadence tools, asynchronous logic, startup experience.

Apply: jobs@normalcomputing.ai with role + HN in subject line

Gumroad — NYC (onsite/hybrid) — Hiring Product/Engineering

We build tools that help creators sell directly to their audiences. Small team, big surface area: you’ll ship end-to-end (product → design → code → metrics).

Looking for: strong product-minded engineers (backend, full-stack, or generalist). Bonus if you’ve built marketplaces, payments, or creator tools.

Nice-to-have stack: Rails/Stripe/Postgres/Redis/React/TypeScript—but we value ownership over checkboxes.

Email sahil@gumroad.com with a couple links (GitHub, portfolio) and 2–3 sentences on why you want to build for creators.

Freetrade | London (ONSITE) | Full-time | https://freetrade.io | £75k-£140k

Freetrade is a commission-free investing app used by over 1 million people in the UK. Our team is expanding, and we’re seeking software engineers to evolve and scale our core investing platform. In this role, you will be instrumental in building and maintaining reliable and trustworthy systems for trade execution, clearing and settlement, asset servicing, and internal operational tools. You will also play a key role in shaping our technical direction and mentoring other engineers as our team grows.

Tech we use: TypeScript, Node.js, Postgres, and GCP

Note: We are three days in the office, located just around the corner from Old Street.

We don’t sponsor visas at the moment.

We are hiring across the board in engineering, data, people, marketing, risk & compliance and finance.

See all of our opportunities here: https://freetrade.io/careers

Ledgebrook | https://www.ledgebrook.com | Multiple roles (Engineering, Data, IT/Security, Product) | REMOTE (US, Canada, Poland ET-friendly) | Full-time | Visa: Not available

We’re a tech-enabled E&S MGA on a mission to modernize Specialty insurance. The industry is burdened with legacy technology and inefficient processes, preventing innovation at scale. We are changing that. Our goal is to become the best-in-class full-stack insurance and re/insurer, leveraging AI and data-driven insights to revolutionize underwriting, pricing, and risk selection. We believe in talent density—fewer, better people working together as one. We win as a team.

Open roles:

• Engineering Manager — https://app.careerpuck.com/job-board/ledgebrook/job/77.E51

• Fullstack Software Engineer (Backend, Python/TypeScript) — https://app.careerpuck.com/job-board/ledgebrook/job/08.75A

• Data and Analytics Engineer (Snowflake/dbt/Airflow) — https://app.careerpuck.com/job-board/ledgebrook/job/77.E5D

• Machine Learning Engineer — https://app.careerpuck.com/job-board/ledgebrook/job/77.E59

• Head/Director of IT & Security (SOC 2/IdP/MDM) — https://app.careerpuck.com/job-board/ledgebrook/job/77.E58

• Product Manager, Data and Infrastructure — https://app.careerpuck.com/job-board/ledgebrook/job/67.E5E

Our stack (role-dependent): Python, TypeScript/React, FastAPI, Node; Postgres, Snowflake, dbt, Airflow; AWS (ECS Fargate, S3, CloudFront, Route53, Secrets Manager), Terraform; Bedrock, LangChain/CrewAI; PowerBI

Requirements (vary by role): Strong ownership and bias for action; clarity in written communication; hands-on delivery in lean teams; comfort with ambiguity and high standards. Deep experience with one or more areas above (shipping production systems, data pipelines, LLM apps, or secure/AWS infra).

Benefits: Competitive comp + equity, medical/dental/vision, PTO, remote-first with periodic team onsites.

Apply: email hiring@ledgebrook.com with subject “HN: — ”. Please include a brief note on why Ledgebrook, a recent project you’re proud of, and your LinkedIn/GitHub. We’re actively hiring and will respond to applicants.

BuildBetter | Senior Engineer (Backend, Full-stack) | Full-Time | Remote (US) 170-200k base + equity | Visa Sponsorship not provided

BuildBetter is the product operations platform for customer-led teams. We've built an AI-first product that lets our customers, like Rappi, n8n, and Posthog, automate the operations work that lets them provide their customers with world-class product experiences.

We're looking for two senior engineers to join the team; our headcount has remained small while growing revenue, and we're now bottlenecked by development speed in a way that will make you invaluable. You'll have real ownership over your code from product ideation to customer support, and we'll be making substantive product updates weekly. We're looking for team players who are as fun to work with as they are productive, and are willing to compensate these two rolls commensurately - our aim is to be in the 95th percentile of equity compensation, and we expect that in exchange we'll have value-aligned employees who will help us grow the business.

Joining us will mean solving hard problems at the frontier of AI adoption, including:

- maintaining performance at scale

- building agent and workflow systems that automate real work for customers

- playing around with the latest models to figure out new experiences that we can offer our customers as cutting-edge models get released monthly

- building automation that's grounded in supporting product teams rather than automating them - our bet is that this is the likelier outcome out of the current generation of AI systems

Stack: Postgres / TS (Nest + React) / Hasura / EKS / S3 / LLM APIs / Python

Benefits:

- unlimited PTO

- $100/mo education stipend

- flexible hours: we measure productivity in terms of outcomes, not time, so as long as you're able to stay aligned, productive, and in regular communication, we don't really care what hours you work

Please reach out at:

nikhil (at) buildbetter (dot) app

MITTE.AI | Berlin, Germany | REMOTE (Europe/+- 2h timezone) | FULL-TIME | AI Creative Suite

We're building an AI Creative Suite that empowers creators with cutting-edge AI models and an advanced editor.

Join our team in Berlin or work remotely within +- 2 hours of our timezone (Europe, Türkiye welcome).

MITTE IN ACTION

https://x.com/azerkoculu/status/1945391849989976533

https://x.com/MaxVOAO/status/1961441059235352579

TECH STACK

Go, Elixir, TypeScript, React, Redux Toolkit

ROLES

Senior Frontend Engineer: https://mitteai.notion.site/Senior-Frontend-Engineer-258f3cd...

Senior Elixir Engineer: https://mitteai.notion.site/Senior-Elixir-Engineer-258f3cdf0...

Senior Full-Stack Engineer: https://mitteai.notion.site/Senior-Full-Stack-Engineer-258f3...

Mercanis | Hiring in Berlin or Remote EU (role dependent)

About us: Mercanis is building the Agentic AI Procurement Suite, enabling enterprises to automate procurement and supplier management workflows using AI. Backed by $30M+ from Partech, AVP, and Speedinvest.

⸻

Engineering Manager | Berlin, Hybrid Lead a cross functional product engineering team, work across the stack, and stay hands on (>20% contributing code). Collaborate closely with product and design to deliver user centric, scalable software. Tech includes Svelte, TypeScript, Node.js, NestJS, AWS, Postgres.

You have: Strong engineering background, 2+ years managing or leading engineers, experience with modern web stacks, a pragmatic and collaborative mindset. Berlin based, hybrid with flexibility for occasional remote days.

⸻

AI Agentic Engineer | Remote EU or Berlin/Barcelona Hybrid Build AI agents that automate procurement workflows across large enterprises. Work deeply with LLMs and orchestration frameworks, evaluate and integrate models, and ship production AI features. Tech includes Python, LangChain, AWS, OpenAI, Anthropic, and Bedrock.

You have: Strong applied AI experience, experience building agentic or multi step LLM workflows, familiarity with enterprise grade systems, passion for fast iteration and quality.

⸻

Technical Product Manager, Integrations | Berlin, Hybrid Own the integration strategy for enterprise procurement systems, especially SAP S4HANA and SAP Ariba. Work closely with engineers and enterprise customers to deliver scalable APIs and integration architecture. Translate complex business workflows into clear product requirements.

You have: 5–8+ years in Technical PM, Solutions Engineering, or Integrations, experience with ERP or procurement systems, strong API and data integration understanding. Berlin based, hybrid with flexibility for occasional remote days.

⸻

Apply: https://mercanis.jobs.personio.de/ More about us: mercanis.com

If you believe in ownership, iterative delivery, and building modern enterprise software the right way, say hello.

Prophet Town LLC | Various Software Engineering Roles | US – Remote and Hybrid | English fluency required | Full-time | $150K-$250K annual total comp (multiple)

I’m the founder, trying to do “enlightened business.” We are a people-first, fully-remote, boutique indie tech agency – building a team of talented, high integrity, and community-minded individuals first, then building businesses around them. Our leadership staff are ex-Fortune 100; everybody touches code. Notable recent projects: internal tools for Anduril, and voltagepark.com.

We’re currently especially seeking:

Frontend Engineers (React, NextJS, Typescript; Animations, Performance optimization; sfbay local a plus)

Teamcenter and Odoo developers (C++/Java/Python; Siemens Teamcenter; Custom applications, workflows, data model updates)

IoT Developers (Python, MQTT, GraphQL, AWS, Test Infrastructure)

Full-Stack Software Engineers (React, Python, Ruby on Rails; Database Design, Devops, and third-party API integrations)

Please apply using this Google Form: https://forms.gle/oJHSjofaxTjSPexW8. Applicants who submit before November 14 will typically receive a reply by November 21. Tier3 roles are typically 5-10 y/o/e with $150-$175k annual total comp. Tier4 roles are 11-20 y/o/e, $210-$250k annual total comp. Higher tiers exist, and we welcome exceptional applications.

Aviagen | Full-Stack Software Developer | Huntsville, AL (onsite) | Full-Time

Aviagen, a global poultry-breeding company supplying pedigree lines for broiler production, is looking for a Full-Stack Software Developer who loves building tools that users actually use and benefit from.

What you’ll do:

- Architect and build web apps that replace legacy systems, streamline business processes, or replace paper or excel based workflows. So far, our web-apps are vanilla JS, with C# / ASP.NET Core backends. We're open to JS frameworks where appropriate.

- Collaborate directly with stakeholders to identify pain points and deliver impactful solutions.

- Own the end-to-end lifecycle: idea, design, implementation, deployment, support.

What we need:

- 5+ years of software development experience, comfortable across front-end and back-end.

- Solid JavaScript/TypeScript skills, experience with REST APIs, relational databases.

- Enthusiastic about owning features, interacting with users, improving business workflows.

What we offer:

- Competitive salary + bonus + company benefits (details on request).

- Real ownership and visibility within a global company with the feel of a smaller team.

- Located onsite in Huntsville, AL - full-time. (Hybrid/remote not currently available.)

How to apply:

Send your resume to dmurph@aviagen.com - mention “HN Who’s Hiring” in the subject. Or apply via https://aviagen.wd1.myworkdayjobs.com/en-US/aviagen-careers/...

Also hiring:

- IT Data Analyst - help build dashboards and data tools for global ops: https://aviagen.wd1.myworkdayjobs.com/en-US/aviagen-careers/...

- Database Administrator (DBA) - manage and optimize our critical data systems: https://aviagen.wd1.myworkdayjobs.com/en-US/aviagen-careers/...

PrairieLearn (Remote US) — Full-Stack Software Engineer — TypeScript / Node / Postgres / AI

PrairieLearn (https://www.prairielearn.com) is an open-source assessment platform originally developed at the University of Illinois and now used by universities across the US (Berkeley, Princeton, Michigan, UIUC, and others). We power mastery-based learning, interactive question generators, and large-scale exams.

We’re a small, profitable, early-stage company (bootstrapped, no VC) and we’re hiring a full-stack engineer to help us continue to grow. You’ll work across the stack and have meaningful ownership from day one.

We’re also developing AI tooling in the product:

* LLM-based agents to help instructors create and test new question generators

* Vision-language models for grading student-submitted work (e.g., math derivations, diagrams, sketches)

This is practical, user-facing AI work with real-world impact — not a research sandbox.

Tech we use:

* Node.js / TypeScript backend, Postgres, AWS, React

* PrairieLearn is open core: https://github.com/PrairieLearn/PrairieLearn

You might be a fit if you:

* Have experience with full-stack web development (TypeScript / Python / SQL / HTML/CSS)

* Enjoy working directly with users (many are instructors and TAs)

* Want to own features end-to-end, from idea to rollout

* Are excited about building practical AI integrations, not just demos

Details:

* Location: Remote (US only)

* Salary: $100k+ depending on experience

* Benefits: Stock options, unlimited PTO, flexible hours

* Role: Full-time. (We’re not able to sponsor visas at this time.)

If this sounds interesting, please email jobs@prairielearn.com. We’d love to talk.

Official job posting: https://www.prairielearn.com/jobs

Pickaxe | Founding Typescript Engineer | Full-Time | In Person (SF)

Pickaxe (https://pickaxe.co/) allows coaches and consultants to build chatbots and agents for their clients. We're a small committed team of hackers focused on building a beautiful product for our customers. We just raised our seed and we're making our 3rd and 4th engineering hires.

Learn more here: https://pickaxe.co/careers/full-stack-engineer