OneChronos | Systems Engineers | NYC (HQ) | Flexible and Remote Work | Full-Time

We’re looking for software engineers to design and optimize high-performance trading systems that power our periodic auction matching infrastructure.

We build production systems in Rust and are looking for engineers with meaningful Rust, C++ or Java experience, particularly out of backend or systems-oriented environments.

This is a systems programming role focused on low-latency, high-throughput distributed computing. You’ll work across order and data workflows, auction execution, reliability, and performance optimization to ensure the platform is efficient, fault-tolerant, and capable of complex trade matching at scale.

We’re especially interested in engineers who:

Have built backend or systems-level software Are passionate about performance, concurrency, and correctness Are motivated by real-time, performance-sensitive systems Have experience with compilers, static analysis, or language tooling (a strong plus)

ESTIMATED COMPENSATION: Salary range: $150,000-$220,000 with eligibility for a discretionary annual bonus.

CONTACT: careers@onechronos.com - and please include “Systems Engineer | HN” in the subject line.

Capital Normal University | Beijing | Faculty/Professors in AI | ONSITE | Full-Time The College of AI at CNU is hiring professors (Assistant to Full) in CV, NLP, and ML Theory. We offer competitive international salary + large multi-year research grants. Location: Haidian District (near Baidu/ByteDance/MSRA). Application: Send CV & 3-5 pubs to t116@cnu.edu.cn. No hard deadline.

LOCATION: Poland (EU) REMOTE: Yes (EU/US timezones OK, based in UTC+1) WILLING TO RELOCATE: No TECHNOLOGIES: PHP 8, Symfony 6, Shopware 5/6, MySQL, Vue/Nuxt (headless), Docker, REST/GraphQL APIs, ERP/PIM integrations (Bumbal, custom) RESUME: https://bartosz.sosna.com.de/ EMAIL: bartosz@sosna.com.de

Senior Shopware/PHP freelancer, 10+ years (Tech Lead at Webweit until 2024, now solo). Shopware Extension Partner since 2019 - 7 extensions in the official Store (4.5 rating, username BartCompany). Open for fixed-price projects or monthly retainer (3 500 - 5 000 EUR/mo). Polish sole prop with VAT ID, professional liability ins. 1M EUR. Currently ~30% capacity (1-2 new clients). Happy to scope a project on a 15-min call.

Company: This Dot Labs Location: REMOTE (US) Role: Senior Frontend Engineers Experience: 7+ years

We’re growing the team at This Dot Labs and hiring 6–8 senior engineers.

We’re looking for engineers with deep frontend experience who are already thinking about AI as a core part of how software gets built today, not as a side experiment.

This is for engineering leads, architects, and senior engineers with 7+ years of experience who care about strong systems, good judgment, and building software that lasts.

Please email your resume to: jobs@thisdot.co

Confidential Series B fintech | Senior SRE | REMOTE (US) | Full-time

We're hiring a US-based senior SRE to help support our feature teams. We are predominately an API company in the b2b fintech space. Our stack is golang services running on EKS in AWS. Postgres, Datadog, Github, and some growing ML and AI capabilities. Leaning into agentic spec-driven development.

apply at: sixthirteen.jobs@gmail.com

Transfyr | Full Stack Software Engineer | Cambridge, MA | Full-time | ONSITE

Transfyr is building physical AI for science, and the world’s largest commercial dataset on real-world scientific execution.

We are looking for a full stack engineer who can work at the hardware/software interface, to integrate our AI and data into tools that solve real customer problems. Our stack spans backend services, data pipelines, and user-facing interfaces. We are looking for strong full-stack programming skills and a track record of shipping real software systems that get used, maintained, and evolved. We particularly value experience designing, building, and maintaining data intensive or backend systems, particularly with high-volumes of multimodal data (e.g. live streaming videos or games or robotics perception). We value strong fundamentals, curiosity, and the ability to learn quickly over familiarity with specific tools.

If you're interested, apply here! https://transfyr.ai/join-us

Category Labs | https://www.category.xyz/ | Remote and NYC | Full Time | $200K USD+

Category Labs (formerly known as Monad Labs) is a team of systems engineers and researchers on a mission to design and build at the frontier of decentralized technology. We strive to design and build step-function improvements over existing blockchain solutions. After raising $225M in series A funding, led by Paradigm, we are growing our team.

Senior SWE, Compiler: https://jobs.ashbyhq.com/category-labs/e5c34899-cea1-4d25-be...

Smart Contract Engineer (Solidity): https://jobs.ashbyhq.com/category-labs/776ce314-aa12-471b-92...

Acrylic Robotics | ML Lead | Montreal, QC | Onsite/Hybrid | Full-time

Acrylic Robotics is a creative tech company focused on changing how people design and create art. We build software that learns a person's taste in art, ML design tools that turn it into a concept, and robots that create the concept with paint on canvas, so original artwork can be commissioned at a price most people can actually afford.

We're hiring an ML lead to own the model side. The system has to take a user's intent and references, turn them into concepts the user can refine through feedback, and produce the brushwork-level instructions our robots paint. This would be the first dedicated ML hire on the team; they'll help set the technical direction, ship the first real end-to-end version, and build out the team behind them.

We're based in Montreal, QC, but open to a hybrid position for the right person. Please email me at walker@acrylicrobotics.ca or look at https://acrylicrobotics.ca for more info.

Thanks! - Walker, Head of Engineering

Ashby | YC 19 | REMOTE | Hiring Product Engineers | Sr: $153k-$220k, Staff: $190k-$275k Ashby is the all-in-one recruiting platform powering hiring at the world’s most innovative companies. If you cmd+f “Ashby” you’ll see that we’re powering many of job postings in this thread!

* Grew our engineering team from 30 -> 60 last year with plans to double again in 2026.

* 80%+ of our engineering team is made up of Senior-Staff+ level Product Engineers. We give an unusual amount of ownership to our engineers to build features end-to-end. Many of our most loved features were build entirely by a single engineer!

* 100% remote asynchronous culture with an even distribution of engineers across North America and Europe

* Full transparency on engineering levels + comp: https://www.ashbyhq.com/blog/engineering/leveling-and-compen...

Stack: TypeScript (frontend & backend), React, GraphQL API, Node.js, Postgres, Redis.

Full list of open roles: https://www.ashbyhq.com/careers

Fold | Remote (US Only) | Senior Back End Engineer | Full-time Fold is a publicly listed bitcoin financial services company building the tools people need to earn, buy, sell and live on Bitcoin. We're looking for a Senior BE Engineer to help build the financial infrastructure behind our products - payment processing, ledger systems, card transaction flows and event-driven pipelines.

  - 5+ years software engineering experience
  - Strong in: Java or similar (Kotlin, Scala, C#)
  - Experience with: production microservices, distributed systems
  - Familiar with: messaging/event streaming (Kafka, Pulsar)
  - Solid relational database and data modeling skills
  - Nice-to-have: fintech, payments, ledger/accounting domains
  - Nice-to-have: event-driven architectures, CQRS, event sourcing
  - Nice-to-have: Micronaut, Quarkus or similar modern Java frameworks
  - US residency (regulatory requirement)

tiun (https://tiun.io) | Senior Marketing Engineer | Zürich or Remote (Europe) | FULL-TIME

tiun is the commercial backend for SaaS, AI, and digital products: auth, payments, and customer data in one system, replacing the Stripe + Auth0 + Postgres + analytics stack.

We're hiring a Senior Marketing Engineer to own how tiun shows up in the world. You'll produce the brand assets and motion work that make us feel like serious infrastructure, run our AI search visibility.

You're a builder, not a manager. You've marketed to technical audiences. You've shipped polished video and motion work, not just briefed agencies. You have opinions about AEO vs SEO. You write well. 3–5 years experience.

CHF60k–CHF85k

email nikolaos@tiun.app

Northbeam Studio | Remote | Automation Consultant

We build done-for-you Zapier, Make.com, and n8n automations for startups and growing teams. If you're hiring for ops, admin, or data entry roles, there's a good chance we can automate 60-80% of what that hire would do — at a fraction of the cost.

Setup: flat €50/workflow, delivered in 48h.

Happy to scope it for free before any commitment. Portfolio and contact at northbeamstudio.gumroad.com

Logenta.ai | CTO | Remote (EU)

We're building an agentic data analytics companion for intralogistics.

Looking for a hands-on CTO who can design and ship an agent-based system end-to-end. You're comfortable building an agent harness, write clean typed Python, and have experience with tools like uv, DuckDB, and PydanticAI. You should be based in Europe (Germany preferred, and Hamburg is best).

If this sounds like you, email: michele.dallachiesa+logenta-cto@sigforge.com with subject "HN Who's Hiring - Logenta CTO". Include your CV and answer one question: "why me?".

telli (YC F24) is hiring across engineering/design/sales/marketing [on-site Berlin] - https://hi.telli.com/join-us

N26 SE | SREs, EMs, Lead Backend Engineer | Berlin, Barcelona| https://www.n26.com | Full-time

N26 has reimagined banking for today’s digital world. Technology and design empower everything we do and it’s how we are building the global banking platform the world loves to use.

We've eliminated physical branches, paperwork, and hidden fees for an elegant digital experience and supreme savings. Giving people the power to live and bank their way is what gets us out of bed in the morning and inspires the work that we do.

We are headquartered in Berlin with offices in multiple cities across Europe, including Vienna and Barcelona, and a 1,500-strong team of more than 80 nationalities.

Full job descriptions here: https://n26.com/en-eu/careers, you can email me with questions/resumes dmitrii.sergeev@n26.com

EggAI | Tech Lead, AI Engineer, Senior/Lead Infra engineer/devops | REMOTE (EU, Switzerland, Norway) | Full-time or Contract

Multiple roles open.

We are a small boutique consultancy and are quite experienced. A lot of us have extensive consultant experience. You will join a small, highly skilled remote team of engineers and transformation practitioners working at the forefront of enterprise AI.

We use AI for both development and in our solutions. We are looking for engineers that are critical thinkers, understand the limitations of AI but also where it can have a positive impact.

Apply at: https://grnh.se/wr97lgu2teu

Our website: https://egg-ai.com/

Location: Remote (contract)

Technologies: Kotlin (Android), Python (Django), Java, Dart (Flutter), Stripe, FHIR, Compose Multiplatform

About Me: Formerly at Google and Amazon, driven by a deep passion for software and technology

Contact: myerou {at} paleblueapps.com

LinkedIn: https://linkedin.com/in/myerou

Sundogs | SWE, Data & ML | Remote CET / EST | Contract or Full time

We're Sundogs, an early-stage startup (15 people) founded by ex-Googlers. We use AI and human creative expertise to transform video advertising.

We're looking for a Senior Software Engineer, Data & ML (Python) to join our team and help bring our Ad Scoring technology from MVP to production. The role spans across Backend Engineering, Data Engineering and ML work.

The job is full remote, but we do meet a couple times per year. We look for candidates between the CET and EST timezones, in Europe or US/Canada (Western Europe / Eastern US).

Full JD: https://tinyurl.com/3d5rddw9 Find out more: https://sundogs.io/

To apply, please send your resume, intro and answer to questions at work@sundogs.io .

ThreatMark | Security, Machine Learning | REMOTE(World) / Brno, Czech Republic | Equity

ThreatMark protects >50M end users from finacial fraud and saves > $100M every year in losses. We are working with top banks in EU and US to protect their end users. We develop large-behavioral models that recognizes returning users by their mouse movements, keystroke timings and sensoric data (accelerometer, gyroscope).

We detect cyberthreats (e.g. malware, phishing, scraping) by exploiting browsers/sandboxes of devices. We manage ~PB scale of data and provide realtime scoring in milliseconds driving authentication/authorization flow (2nd factor).

Stack: [python, typescript, rust], [redis, postgresql], [aws, terraform] ...

We are looking for exceptional engineers to build with us and be part of the success:

- Backend Engineer [rust, python] - low-latency stream processing engine, rewrite python microservices to rust, build new detection features

- DevOps Engineer (IaaC in AWS)

If you are interested, please email us @ career@threatmark.com with subject "HN Who's Hiring"

If you don't find the right role here or at https://www.threatmark.com/careers/, write us anyway if you believe you can be good fit :)

Krystof Hilar, Co-Founder & CTO

Deepline | NYC (ONSITE) | Founding Full-stack Engineers and Forward Deployed Engineers | $160k–$220k + meaningful equity

User interfaces are dead. Knowledge workers will exclusively work through agent interfaces like Claude Code/Cowork. We've built the interface layer to enable that.

One API that unifies hundreds of data providers, workflows, and data infrastructure to agents like Claude Code. We shipped our mvp last month; hundreds of early adopters signed up and are using Deepline.

You'd build core platform: agent-facing abstractions, infrastructure, UI. TypeScript/Python/Next.js/Postgres. $3.3M raised from Lerer Hippeau + Looker founding team. Technical founding team from Uber, Lyft, Capchase, MIT, Waterloo.

https://code.deepline.com/careers