ELI Beamlines (ELI ERIC) | Dolní Břežany (Prague), Czech Republic | Onsite (with HO) | Full‑time

We operate one of the world’s leading high‑power laser research facilities (up to 10 PW) and support an international user community. We’re hiring:

• Director for Technology Lead the Technology Division (laser beam transport, instrumentation, engineering services, control systems, data infrastructure). Set the technical roadmap, grow teams, and ensure reliability and integration across the facility. Apply: https://www.eli-beams.eu/careers/director-for-technology/

• SW Control Systems Developer Join the Controls Hardware Integration team. Build and maintain device control & data‑acquisition for lasers/beamlines (EPICS). Write IOCs/services in C/C++/Python, integrate hardware, and collaborate with scientists on Linux. Apply: https://www.eli-beams.eu/careers/sw-control-systems-develope...

• Web Developer for Data Visualization Build interactive tools and UIs that help researchers visualize experiment data and plan setups (from dashboards to 3D/WebGL). Work across Python backends & modern JS frontends; design clean APIs; familiarity with Jupyter/three.js/D3 a plus. Apply: https://www.eli-beams.eu/careers/web-developer-for-data-visu...

• Safety Systems Engineer (PLC / Interlocks) Own the PLC‑based Personal Safety Interlock (PSI): define state logic, supervise installation/upgrades with suppliers, commission new areas, and keep documentation, testing and availability tight. Apply: https://www.eli-beams.eu/careers/safety-systems-engineer-152...

How we hire: CV → HR pre‑screen → interviews (in‑person or Webex). Questions? Email HR: Email is hidden Or me with technical ones Email is hidden

About us: ~350 people from 38+ countries; easy public‑transport commute from Prague. Keywords: EPICS, Python, Linux, PLC/Safety, JavaScript/TypeScript, Git.

ShieldAI | Web & Infrastructure Engineer | Full-time | Remote (US) or San Diego, CA with occasional travel

ShieldAI's Hivemind Special Project is hiring a Staff to Principal-level Infrastructure & Web Applications Engineer. We're a small team entirely comprised of L5-L8 ICs, working to bring seamless robotic behavior and coordination development from a sci-fi concept into reality. Our team work on a collection of long-term initiatives, demos, spike/proof of concepts, and assists to support Hivemind Product and Hivemind Solutions. LLM/AI applications for development acceleration represent a significant portion of our focus.

For this role, we are looking for someone deeply versed into Web Application and Infrastructure development. In particular TypeScript, bundlers, isomorphic development strategies, Web semantics, CSS/modules, browser performance optimization, protocols etc. If you have built custom webpack loaders, an SSR framework of FRP renderer from scratch, done packet level processing, or frame-rate optimizations in React, and have strong opinions about functional development and infrastructure please reach out!

Full Job posting: https://jobs.lever.co/shieldai/55c5676a-8b67-4379-84a8-58f59... If you are interested please contact me at [sp_hiring_sep2025 AT shield.ai] or apply directly on the job posting.

Composio | Senior Backend Engineers + Product Engineers (Frontend + SDKs) | Full-Time | In Office (SF and Bengaluru, India)

Hi HN, we’re building https://composio.dev — the fastest way for AI agents and developers to take action across apps like GitHub, Gmail, Slack, and more. Our SDKs (TypeScript + Python) and APIs let developers connect and execute tools in just a few lines of code.

We’re a small, fast-moving team obsessed with developer experience. Our stack is TypeScript-heavy: backend in TS/Go/Python, frontend in React/Next.js, SDKs in TS/Python. You’ll work across product and engineering to define APIs, craft abstractions, and ship features used by thousands of developers.

We’re early stage, small team and looking for engineers who want ownership and impact.

Feel free to reach out to me with your resume and links of your work: Email is hidden

Kredit | .NET Engineer Roles | Remote (US) | Full-time Kredit (trykredit.com) is on a mission to resolve debt better. We provide tools to regular people to help them get the out of financial hardship, as well as provide tools for businesses to manage their processes. We are small (6 person dev team) and growing. Our stack: .NET Core, C#, PostgreSQL, Mediatr, CQRS, Events, Angular, GCP, Kubernetes, Terraform and much more.

We are a Event/CQRS stack and are looking for Engineers that fit that experience in this area.

If this sounds interesting to you, please reach out to Email is hidden

Ploid AI | Barcelona, Spain | HYBRID (preferably on-site) | Founding Engineers | Full-time + Equity

We’re building an AI-first bioinformatics platform to empower plant breeders and life science researchers with agentic AI and LLMs. Backed by pre-seed funding and real demand from biotech and seed companies, we’re looking for versatile founding engineers to help us shape the future of AI in genomics.

What you’ll do:

• Architect and build AI workflows, agentic interfaces, and data pipelines

• Work across the stack: Go, Python, TypeScript

• Contribute to system design, infrastructure (AWS, Docker, Terraform), and devops

• Collaborate closely with scientists and iterate from prototype to product

• Help define our technical culture and roadmap as a core founding member

Nice-to-haves (not all required): LLM integration, RAG systems, gRPC, scientific computing, cloud/on-prem hybrid systems

About us: We’re an early team of engineers and scientists with strong academic and industry backgrounds (ex-BCG, PhD in Plant Biotech, M.Sc. AI). We’re committed to building something impactful, technical, and genuinely useful for life science.

Apply: Email is hidden

More about us: https://ploid.ai

We also consider internship requests from strong student candidates.

Update to our August post: Thank you for all the interest from HN! We have filled 2 out of the 3 open positions. We are now seeking for expertise in full-stack development.

OneCrew | Multiple Roles | ONSITE / HYBRID | San Francisco, CA

OneCrew is the leading unified platform helping paving contractors estimate accurately, manage crews effectively, and track profitability in real-time. We eliminate the costly mistakes and wasted time that come from juggling multiple disconnected systems—giving contractors a single source of truth to run their entire operation.

We recently closed our Series A and are looking for highly motivated individuals to own their domain and accelerate our growth.

- Engineering Manager - 3x Software Engineers (Fullstack, Frontend, Backend) - Product Manager - Growth Find job details here: https://jobs.ashbyhq.com/onecrew and apply via email: Email is hidden

Base Power | Onsite | Austin | Full-time | https://www.basepowercompany.com/careers At Base we're rebuilding the nation's power grid. We build and manufacture power systems, deploy them across the grid, and build the algs, ingestion and commanding platforms that operate the fleet in response to real-time grid conditions. Our team is made up of engineers from top infrastructure and energy companies (Apple, Anduril, Starlink, etc) and we have several years of runway from top firms (a16z, Valor, Thrive, Addition). We are looking for: - platform engineers - firmware & controls engineers - embedded software engineers

Sampling of exciting upcoming problems include: - Home load prediction algorithms - Resilient factory execution software platform - Automated hardware-in-the-loop (HIL) test system

Sumble is the newco from the founders of Kaggle. We are hiring software engineers, data engineers, machine learning/ai engineers, a product manager and a designer. Can view our roles and apply here: https://apply.workable.com/sumble-inc/

As background, we are building a knowledge graph from web data with a first focus on data for go-to-market teams. We use sources like job posts and resume data to identify things like org structure, tech stack, and key projects (e.g., GenAI initiatives, cloud migrations). Our product already has strong product-market fit, early revenue, and happy customers — and now we’re ready to accelerate.

Our long-term vision is to become the primary destination for accessing high-quality web data. Try the product at sumble.com.

We are a team of 15, including 10 engineers with experience at companies such as Google, Meta, Stack Overflow, and Kaggle.

Data Engineer | US Resident | REMOTE | Full-Time | 130-160k (open)

tl;dr: Python + GCP + BigQuery + k8s. * Develop robust ETL/ELT pipelines to extract, transform, and load data from diverse sources into our data warehouse. * Enhance and maintain our cloud-based data storage and processing systems for performance, reliability, and cost-efficiency. * Implement rigorous data quality checks, monitoring, and security measures across all data assets. * 5+ years of experience in data engineering, with a strong grasp of data warehousing, ETL/ELT principles, and data modeling. * Experience with BigQuery (, Redshift, Snowflake, etc) * Experience with infrastructure tools (e.g. Terraform, Kubernetes, Docker) is a plus. * I will read all resumes! We need more resumes!

Job link: https://job-boards.greenhouse.io/epickids/jobs/6669024003

Retirable | https://retirable.com | Senior Engineer | NYC, hybrid onsite (Flatiron)

Looking for a product-driven engineer with Rails/React experience to help us bring retirement planning to everyday Americans. We just raised a series A and are building our team for the next phase of growth. Our stack is React/Typescript/GraphQL and Rails built with event sourcing, DDD and CQRS.

https://wellfound.com/jobs/3322815-senior-software-engineer-...