SimplePay | Full Stack Kotlin Developer | REMOTE (UTC+0 to UTC+6)

At SimplePay we're developing our own low code platform that's designed specifically for creating SaaS apps. We're building in Kotlin, and targeting Kotlin on the backend and Vue.js on the frontend. You will work on this low code platform, as well as use it to create our new potfolio of SaaS applications, to complement our existing payroll business that stands at 52,000 customers and growing (see https://www.simplepay.co.za for an example).

If you love Kotlin and can handle complex abstractions, please apply! If you only have Java experience, we will still consider you. Please note that we currently prefer people with 5+ years of experience.

Apply here: https://teamsimplepay.applytojob.com/apply/nHsQeEyIGA/Senior...

We’re hiring across AI, infra, engineering & product marketing

1. Sr Product Marketing Manager (Stealth AI Time) – San Francisco (Hybrid, relo ok) Own category creation, positioning & narrative for AI-driven timekeeping. Lead GTM + product launches. 7+ yrs B2B SaaS PMM. $120K–$220K + equity. No visa.

2. Sr Fullstack Developer – Remote (B2B, EU pref) Frontend-heavy (TypeScript/React/Vue/Angular), backend Python/Django. Build scalable, high-perf DOM + rendering systems. 7+ yrs SWE. Contract, gross comp TBD.

3. Founding Engineer (FE/FS) @ Yarn (YC-backed) – NYC onsite only React + Python + TypeScript, WebGL shaders, AI video pipelines. 4+ yrs SWE. $170K–$225K + 0.75–1.25% equity. No remote/hybrid.

4. Fullstack SWE @ Thrv – Tiburon/SF onsite Next.js/TypeScript, LLM/AI apps (Vercel AI SDK), Postgres, Drizzle ORM. $150K–$250K + equity. Visa for exceptional candidates.

5. Platform Engineer (AI Infra) – NYC onsite, US citizens only Build infra for Olympus & Athena AI. Python (FastAPI), Docker/K8s, AWS GovCloud, on-prem deployments. $200K–$275K + equity.

6. Forward Deployed Engineer – San Francisco onsite 2–5 yrs SWE, startup/high-bar exp. Customer-facing coding & deployments. Work trial (3 days). $150K–$220K. Visa available.

Apply: bayonle.afolabi@hire1.email (state role).

OpenRent | London, UK | Full-Time | ONSITE+PART REMOTE | https://www.openrent.co.uk

What sucked the last time you rented a house or flat? Come and fix it.

OpenRent is a force for good in an industry tarnished by rip-off agencies. Enabled by an unrelenting focus on technology, we now let more properties than any agency in the UK. In the last 12m we let over £50 billion worth of property, to over 7 million registered users, without ever charging any admin fees.

You'll be working on solving every aspect of the rental journey, from models to predict the right price of a property, to building the future of property management, all to help tenants find their dream home, and landlords their ideal tenant.

We're VC backed, profitable, and have plenty of ambition to maintain our fast growth in this absolutely massive market.

Roles currently available:

- Senior UX/UI Developer | Equity | 100k+ (based on experience) + quarterly bonus

All roles visible here: https://www.openrent.co.uk/jobs

Kombo | Senior Site Reliability Engineer | Berlin, Germany | ONSITE | Full-time | €78k - €96k + equity

Kombo (YC S22) is the unified API for 100+ HR/ATS systems. We've grown from 0 to €7M ARR in 2 years and process data for hundreds of millions of people daily. Kombo is known in Berlin for our engineering culture that values quality and product-mindedness.

We're hiring our first Senior SRE to build and scale our infrastructure. You'll own Kubernetes, GCP, Postgres (terabyte-scale), and CI/CD while working closely with our product engineers—with opportunity to build and lead the SRE team as we scale.

Looking for: 6-8+ years SRE/DevOps, strong Postgres administration, Terraform, infrastructure-as-code, distributed systems, and cloud infrastructure.

Stack: Kubernetes, GCP, Postgres, GitHub Actions, Terraform (our philosophy is to keep it lean and efficient)

Apply: https://jobs.ashbyhq.com/Kombo/20d6cb5f-9b51-4a6b-8005-61344... (mention HN)

Picnic is kicking off a Hiring Sprint for Java Developers! At Picnic, we’re transforming the way people buy groceries with our innovative, app-only, and sustainable service. We’re looking for passionate engineers to join our diverse team at our Amsterdam HQ, where you’ll have the chance to make a real impact in a fast-growing scale-up environment.

What makes Picnic unique? We do everything in-house: from building cutting-edge forecasting systems and operating our first fully automated warehouse, to designing the electric vehicles that deliver groceries straight to our customers’ doors.

Want to fast-track your way into an exciting role at Picnic? Our virtual Hiring Sprint makes it happen!

Here’s how it works: Apply by October 17, meet your recruiter, complete a coding challenge, go through all interviews in just one day, get your offer within 24 hours

No lengthy process — just a clear path to your next adventure.

Apply now and be part of the future of groceries! https://grnh.se/pbkkez941us

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

Odoo | Full Stack Developer | Hybrid (Belgium, 3 days/week) | Full-time | Visa + €10k Signing Bonus | https://www.odoo.com/r/mnk

Odoo builds open-source business apps used by millions. We're hiring full stack developers to work on our Python/PostgreSQL backend, fast JS framework, mobile apps, website builder, and more.

Why join us:

- €10k signing bonus - Visa sponsorship + relocation support (contains 1 month free housing) - No clients, no deadlines — just clean, open-source code - Pick your team after 3 weeks of onboarding - Great team, countryside office (with chef!), flexible hours

You:

- Master several programming languages - Proficiency in object-oriented programming - Strong in SQL, data structures, and DB design - Passionate, autonomous, and eager to build real stuff

Apply → https://www.odoo.com/r/mnk

Oxidian | https://www.oxidian.com | Remote (Ireland/EU ONLY) We make sure public money is well invested by building software for governments. We're doing to government software services what challenger banks did to banking.

Our projects range from high-performance computing libraries to web applications and modern DevOps pipelines. We focus on automating complex tasks and creating user-friendly interfaces to improve the working lives of scientists and researchers.

We move quickly, trust each other to deliver, and give you space to own your work from day one.

We're currently hiring for:

* Senior Python Developer

* Senior Rust / C++ Developer

More information and how to apply: https://www.oxidian.com/#join-us

GHCO - https://www.ghco.co.uk/ | Software Engineer, Senior Software Engineer, Trade Application Support | London | Hybrid | Full Time GHCO is an ETF market maker, quoting across European exchanges. We're a small team of expert traders and proven software engineers, looking for experienced technologists who have an interest in advancing the state of the art in automated market making. Tech stack we're hiring for: Java, Python, SQL, AWS

* Benefits and perks: competitive salary, health insurance, generous hardware and software allowance, casual work environment, inclusive team-oriented culture, rapid career growth opportunities, high impact work.

email: anthony dot sheldon at ghco dot co dot uk, with Hacker News in the title

Swiss AI Initiative | https://www.swiss-ai.org/ | Hybrid/ONSITE (in Europe)

We are a young team, and the creators of the Apertus LLM, the currently leading open-data open-weights AI model.

Join us to work on cutting edge LLM training in the open. We do pretraining, alignment, reasoning, multilinguality and multimodality - all at the intersection of engineering and research.

This is a joint team between ETH Zurich and EPFL in Lausanne, running on the Alps supercomputer (one of the largest public institution GPU cluster). Visa sponsoring possible, work language is English.

https://careers.epfl.ch/job/Lausanne-AI-Research-Engineers-S...

CrazyGames | https://about.crazygames.com/ | REMOTE (in Europe) | Full-time | Multiple roles

With recent technologies such as WebGPU and WebAssembly, the browser is quickly becoming a powerful gaming platform. High-quality 3D graphics and near-native level performance are now possible without the need for downloads, apps, or platform-specific development. Our browser games platform is already reaching more than 45 million people per month. We are self-funded, profitable, remote-first, and fast-growing.

We are currently looking for multiple people to bring our product, data, and adops to the next level.

Please note that we're looking for people who can work on a European timezone and are ideally based in Europe (which includes the UK for those in doubt).

* Product Manager: https://crazygames.recruitee.com/o/remote-product-mgr

* Data Analyst: https://crazygames.recruitee.com/o/remote-data-analyst

* Programmatic Manager: https://crazygames.recruitee.com/o/programmatic-manager

Hetzner Cloud | Remote (within Germany) or on-site | Full-Time |

Exciting opportunities await! Ready to embark on an exciting journey with us? Dive into a world of possibilities by exploring exciting job opportunities right at your fingertips. Check out the details on our website at: https://www.hetzner-cloud.de/en#jobs

Senior C++ Software Engineer (m/f/x) - Object Storage

We eagerly anticipate receiving your application.

Aqora | Quantum Computing Expert | Full-time | Paris (HQ) or Remote (Europe)

We're building the go-to hub for quantum computing, focused on organizing quantum hackathons and competitions globally as well as hosting quantum datasets and algorithms. We've partnered with major industry players, generating six-figure revenues, and have more exciting projects lined up. Our MVP is live, and we're looking for a Quantum Computing Expert to help us scale. In this role, you’ll: - Refine quantum use cases and define metrics to evaluate submissions. - Build partnerships and onboard quantum professionals. - Contribute to product-market fit and platform growth. - Assist with hackathons and write technical articles on challenges. Requirements: - Experience in quantum algorithm development (digital & analog). - Experience mentoring at hackathons. - Proactive and detail-oriented. Bonus: PhD in quantum physics. Perks: Competitive salary, equity options, workspace at Station F (Paris).

Apply by sending your resume, intro, and portfolio to https://quantum.jobs/jobs/85500519-quantum-computing-expert.

Help shape the future of quantum computing at Aqora!

Oils (https://oils.pub/) | Language Engineer / Debugger of Other People’s Cursed Shell Programs / Writer | REMOTE (non-US) | 50 euros/hour

Oils is our upgrade path from bash to a better language and runtime.

We’ve been awarded a 4th grant from https://nlnet.nl, and our focus is to show that OSH can be the ONLY shell on a Unix system, which is hard

It looks like we will reach this goal! Other than me, there are 4 people working PART TIME on this, and we can use more help.

If you like hunting down difficult bugs, and are skilled at Unix and Python, this could be a good fit.

Most bugs are too hard for 1 person to fix by themselves, so communication is important. And writing good test cases is important.

We’re also paying people to do polished writing, since we'd like to spread the word

Starting from 131, we’re down to 41 disagreements between OSH and sh/ash/bash, when building ~1600 packages in Alpine Linux

https://op.oils.pub/aports-build/published.html

Anyone who's not “scared” of these bugs is probably a good fit, and you can do as much or as little as you like. This is also an opportunity to get deeper into the interpreter

Communication happens on Zulip, and we also have video meetings approximately every 2 weeks

I'll have a blog post explaining this work soon, but feel free to e-mail me if this (unusual) job matches your interests. Any questions are very welcome, and you can dip your toes in to see if it works for you

I wrote this page a few years ago to help people assess the fit: https://github.com/oils-for-unix/oils/wiki/Where-Contributor...

The job is remote-only, and we slightly prefer non-US contributors due to our funding

Tech stack: Python, Shell, perhaps C++

Contact: andychup@gmail.com

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/3Hv6cwZzAzwqKMGz9. Applicants who submit before October 17 will typically receive a reply by October 24. 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.

DigiUsher | https://www.digiusher.com | Senior Backend Engineer | Remote (overlap with West Europe) | Full-time

DigiUsher is a multi-cloud data and AI cost governance platform. We work with AWS, Azure, GCP, and leading system integrators to help enterprises build sustainable, efficient, and profitable cloud solutions.

We're looking for a Senior Backend Engineer to join our core team. You'll play a key role in shaping product architecture, building scalable data integrations, and driving technical strategy as we grow. Ideal candidates are product-minded, detail-oriented, and proficient in Python with experience handling large-scale data.

Tech stack: Python (FastAPI, Celery, Polars, NumPy), PostgreSQL, ClickHouse, Kubernetes, Docker, Terraform, GitHub Actions

You will:

- Architect/build new data integrations and features

- Enhance existing integrations for performance and reliability

- Engage directly with enterprises to understand challenges

- Own responsibilities across the full product lifecycle in a fast-growing startup

Requirements:

- 3+ years of professional Python (or similar) experience

- Background in large-scale data pipelines

- Familiarity with Docker/Kubernetes

- Strong async collaboration & communication skills

Nice to have: Terraform, CloudFormation, or similar devops experience.

Interview process: Screening call → take-home assignment (work relevant) → review → technical/leadership rounds → CEO chat → offer. Typically 2–3 weeks.

More info/apply here: https://wellfound.com/l/2Bywrm or reach out to me at gagan@digiusher.com

I'm the co-founder and CTO and will be personally handling recruitment.

Kaedim | Software Engineer, Machine Learning Engineer, Security Engineer, Customer Support Engineer, Product Manager, UX/UI Designer | Onsite | Full-time | San Francisco, Singapore, London | US & UK Sponsorship Available Kaedim is an AI startup building ML algorithms that turn images into digital 3d models. We are a group of ~10 looking to grow the team to help streamline 3d content creation for 3d artists and are already working with 1 of the top 10 games of all time! Using our AI and in-house art team, we have the most accurate, game-ready 2d → 3d asset generation pipeline. Currently, we are offering a 10x speed up to 3D asset creation pipelines of 200+ game developers and we are working with partners like Voodoo, Upland, Azra Games.

Check out our demo here: https://www.youtube.com/watch?v=tlQWFG1DLb0

We just launched our new product, Flow 3D! Check it out here: https://www.producthunt.com/products/kaedim?embed=true&utm_s...

Job descriptions and application link: https://join-kaedim.notion.site/

Tech Stack:

Product (web app, API): React, MySQL, NodeJS, Python, AWS

Machine Learning: Python, PyTorch, AWS

CCV Payments | Junior to mid-level software engineer | Onsite (NL) | Full-time | €50k-€60k | https://ccv.eu

About us: From facilitating the first electronic payments in the Netherlands in the 70s, to offering the first mobile payment terminals there and enabling next-gen online payment services throughout Europe from the 00s and onwards; CCV has always been a pioneer in payment.

Role overview: As a Software Engineer, you will work in a team of 30 employees focuses on innovating reliable payment terminals and the underlying systems. This is based on customer requirements, developments in the European payment market, and changes in security standards (PCI, Nist, Dora). You will work on applications that ensure secure loaded of software and keys (initial and remotely) onto Linux and Android payment terminals. The applications are written in C# and interact with, among others, RabbitMQ, Microsoft databases, ERP systems, and Utimaco hardware security modules (HSM's).

What we’re looking for: 1-5 years of software engineering experience (.Net, C#) and familiar with cryptography (RSA, AES, Eliptic Curve).

The work is highly technical and challenging. If this sounds like something you're passionate about, I invite you to visit

https://www.ccv.eu/nl/over-ccv/werken-bij-ccv/vacatures/secu... and apply!

Stardrift (https://stardrift.ai) | Founding Engineer | Onsite - SF | Full time

Hi HN - I'm the founder of Stardrift, and we're looking for a founding engineer to join our team of 3-4. (Fun fact: I got my first coding job through 'Who is hiring?', almost 12 years ago!)

We are building a world-class travel search experience. In the future, you won’t book travel by opening ten tabs in Google Flights; you’ll book through a personalized AI assistant that understands everything about you and automatically arranges your trip for you.

You'll tackle everything from optimizing LLM performance and building evals to integrating APIs like Amadeus and Duffel. We care about moving fast and writing high-quality code; your job will be to take customer feedback and improve our product, working shoulder-to-shoulder with me & the rest of the founding team.

More info at https://www.ycombinator.com/companies/stardrift/jobs/nC7cjhB....

Please reach out to leila@stardrift.ai to apply.

Tandem Health | Senior/Staff Software Engineers | On-site in Stockholm, Sweden | Full time

At Tandem Health we're building a clinician copilot to allow clinicians to focus on care rather than administration. We’re building, launching and iterating quickly, and are already rolling out across some of the largest care chains across Europe, including most of the NHS.

Our core product listens in to the patient-clinician encounter to generate medical records, allowing clinicians to save 5-10 minutes per patient. No longer do clinicians have to catch up on administration after hours. Some even tell us that their partners notice they're much more relaxed after starting to use our product, and we couldn't be happier :)

We’re expanding our Stockholm team with exceptional engineers! We use Python (backend), TypeScript/React (frontend) and C# (Windows app) and our infrastructure runs on Kubernetes in Azure. We’re especially keen to talk to Staff Engineers (backend) and Senior AI Engineers (e.g. LLMs and the scaffolding around, computer-use agents)

Even if we don’t have a role out your specific skill set, we’d love to talk! Our tech team is small but growing and you’ll have an outsized impact on an important problem.

More info at https://www.tandemhealth.ai/recruitment

Feel free to reach out to john.moberg@tandemhealth.ai if you have any questions