Northstar Security | Software Engineer | Bay Area | Onsite | Full-time

Northstar is a seed-stage cybersecurity startup building an agentic platform to help security teams understand and defend the complex environments they're responsible for. Our semantic layer integrates data from the fragmented security and IT tools that teams have to deal with and allows for an AI-native approach to reasoning over a company's security posture.

We're looking for someone with hands on experience building modern AI systems who wants to join an early startup (<5 engineers) and everything that comes with it: working closely with design partners, solving hard technical problems, working in a fast-paced environment and figuring out how to apply agentic AI in practical, novel ways.

Contact me if you're interested - alex@northstar.security

MixRank (YC S11) | Software Engineers | 100% REMOTE (Global) | Full-Time MixRank processes petabytes of data every month from web crawling. We have hundreds of customers using our data products including Google, Amazon, Facebook, Intel, and Adobe, across industries including Finance, Recruiting, Sales, Marketing, and Security. We’re a fully-remote company with a global footprint in over 20 countries. We're growing, profitable, employee-owned, no dependence on outside funding. Applicants from all geographies and backgrounds are welcome.

We are looking for passionate individuals for whom programming is not just a job but it’s something they love to do. We're obsessed with computers, programming, big data, databases, compilers, hardware, math, data science, and the internet. Does this sound like you? Please apply to join our team.

Our code base is very friendly to new contributors. You'll have a fully-functional development environment within hours (fully automated) and be pushing commits on your first day. Deployments to production happen multiple times per day and finish in less than 2 minutes. Effectively all of our codebase is written in Python, Rust, SQL, Javascript/TypeScript, and Nix. The core technologies you'll need familiarity with to be productive are Python, PostgreSQL, Linux, and Git.

We operate at a larger scale than typical startups. We operate two datacenters with high performance servers we've built that are capable of dealing with the volumes of data we process. We've implemented our own distributed file system. We do full-scale web crawls. We download and perform static analysis on the entire universe of Android APKs and iOS IPAs that are published. Unlike a typical startup where you'll spend half of your time in meetings, and the other half fixing bugs from Jira tickets— at MixRank you'll get to challenge yourself with difficult technical problems that will help you to grow as an individual.

We're hiring continuously for the positions below— they aren't singular positions that will close once filled. Our philosophy on hiring is that the candidate is more important than the position. For each new member of the team, we design a custom role and responsibilities that are specialized to their interests. Other companies will come up with a long list of specific requirements for a position with the expectation that you'll exactly replace someone from the team, or that you'll be the perfect tetris piece that satisfies the job requirements decided by a committee. MixRank is more pragmatic: we'll first get excited about having a unique individual on the team, then we'll figure out the best way to accommodate their specific talents.

-- Junior Software Engineer - Remote (Global), Full-Time

We're looking for remote junior engineers that have 0-3 years of professional experience in software, and 5+ years of curiosity exploring computers, programming, and technical hobby projects. This is an open-ended entry role with mentorship and diverse opportunities to work on all areas of our product: databases, distributed systems, infrastructure and tooling, data analysis, machine learning, frontend/backend web development, APIs, data mining, data modeling, and more. To stand out, please highlight what makes you unique: passion for computing, curiosity and side projects, work ethic, niche research, etc.

Ideally you've already graduated, but if you still have one or more years left of school, please feel free to apply anyway, and if you're the right fit for the team we'll figure out a way to accommodate your schedule. https://www.ycombinator.com/companies/mixrank/jobs/Fnwsojk-j... --

Software Engineer - Remote (Global), Full-Time

We're hiring generalist software engineers to work on web applications, data mining, machine learning/data science, data transformation/ETL, data modeling, database scaling, infrastructure, devops, and more. We'll cater the role to whatever subset of these areas match your interests.

Beneficial experience includes PostgreSQL, Python, Rust, Linux, TypeScript, Nix, frontend/backend web development, and data mining.

https://www.ycombinator.com/companies/mixrank/jobs/RXQspen-s...

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I’m Kiran, Chief of Staff (CoS) at MixRank, a fully remote data startup building go-to-market intelligence. We’re US-incorporated but hire globally, and we’re bringing on new teammates to join a fast-moving team with real ownership and impact.

AREO | Remote (EU) | Full-Time | Equity | Roles: [Engineering Manager (Ruby on Rails), Lead Product Engineer (Ruby on Rails), Senior Android Developer]

My name is Marius and I am the CTO at AREO (https://goareo.com/).

AREO, founded in January 2023 by a team with 20+ years of combined experience in retail and startups, is a young startup specializing in developing innovative solutions for supermarkets and grocery retail stores. Our cutting-edge B2B SaaS platform optimizes workflows for employees by providing real-time access to inventory, product information, and customer inquiries. We serve large supermarket chains in Germany and across the EU.

About a year ago we brought a backend developer on board through "HN - Who is hiring" and are now seeking a Lead Product Engineer / Engineering Manager and a Senior Android Developer with a minimum of 8 years of experience (preferably in startups) as we just closed another 1M+ ARR contract with a major retail chain and are growing quickly.

For the Product Engineer / Engineering Manager (but not the Android Developer) role professional knowledge of German is highly preferred.

If you're passionate about building innovative retail products from scratch, these roles are for you.

Backend Stack: Ruby / Rails (8.x), StimulusJS / Hotwire / Turbo, AlpineJS, Postgres, Docker, DigitalOcean, OpenAPI, LLMs

Mobile Stack: Kotlin, Room, Jetpack Compose, Hilt

Perks: Fully remote roles (Europe), work where you are most productive, sizeable equity in a rapidly growing company, flat hierarchies, no-ego work environment, work in a lean but highly experienced team

Apply here: marius[at]goareo.com and mention “HN - Who is hiring?” and the role you are applying for in the subject.

Foundry Robotics | Founding Engineers | Contract or Full-time | Remote or onsite | London, UK

I'm Gio, CTO of Foundry Robotics. We're an early stage London-based startup building robotic solutions for manufacturing applications.

We have 3 open positions:

1) Tinkerer/mechanical engineer -- Help us build our robots in our lab with a mixture of design and hands-on prototyping. Experience with metal fabrication (CAD, CNC milling, turning, 3d printing, sheet metal).

2) Software/robotics engineer C++/Python -- Help us build our software with a lot of autonomy. Navigate documentation for the different components and technology options and make key decisions. Path to become a team lead. Experience in robotics is not required if you have experience in adjacent fields such as 3d graphics (game engines for example).

3) Robotics research engineer -- Be our first research hire. Experience with computer vision, NVidia Isaac or similar simulation environments. Background in reinforcement learning.

Contact: gio@foundryrobotics.co.uk (add "HN" to subject)

REQUEST to include the 4DWW (Four Day Work Week) tag & text in the description to provide a clear signal to companies that workers are yearning for it.

Premsys | Remote (US) | Founding Sales & GTM Partner | https://premsys.ai/

Apply at: https://wellfound.com/l/2BVQxT or send resume/linkedin to info@premsys.ai

Company: We're Premsys, a bootstrapped early-stage startup that builds/configures/integrates/deploys/maintains secure on-prem AI for regulated industries. Our MVP is built and running on devkit hardware and we're ready to close our first wave of customers.

Role: We're seeking a Founding Sales & GTM Partner who will own early revenue generation end to end. This is a long term founding role, and you'll work directly with the other founders to define outbound strategy, find and engage decisionmakers in our targeted industries and orgs, run sales conversations, and close the first deals.

If successful, this role becomes a Head of Sales/GTM position.

Skills/Experience: Comfortable with cold outreach and proactive prospecting, clear written and verbal communicator, able to operate independently with minimal structure, resourceful when dealing with ambiguity or process friction, motivated by ownership and long-term upside + 1-3 years prior experience in B2B tech sales or early-stage startups is a plus, but not required if you can demonstrate execution ability.

Comp: At this time we're able to offer $1k/month base rate, $500 commission per closed sale, and 5% equity (4 year vest) after first sale is closed.

Position is fully remote, flex hours, and US based.

Kyber | Low-level Developers | Paris area (hybrid) and Remote in Europe | Full-time | kyber.media

Kyber is an open-source SDK and platform to control remote machines, from Remote Desktop to Robots Teleoperation/Teleobservation.

Kyber is a multi-stream and multi-actuator transport in extremely-low latency, over Quic; it encloses the server, the client and the protocol.

One could use Kyber to control robots, drones, desktop, servers in the cloud or just remote rendering of interactive 3D programs. Kyber is done for Remote RealTime, where every millisecond matters.

Kyber is developed by engineers from the VLC and FFmpeg community, and we code in Rust, in C and in assembly. We have some development in Go too.

We're a quite technical team, but cool to work with.

Contact: jobs -- at -- kyber.media (subject: “HN job”)

Spacelift | Remote (Europe) | Full-time | Senior Software Engineer | $80k-$110k+ (can go higher)

We're a VC-funded startup (recently raised $51M Series C) building an infrastructure orchestrator and collaborative management platform for Infrastructure-as-Code – from OpenTofu, Terraform, Terragrunt, CloudFormation, Pulumi, Kubernetes, to Ansible.

On the backend we're using 100% Go with AWS primitives. We're looking for backend developers who like doing DevOps'y stuff sometimes (because in a way it's the spirit of our company), or have experience with the cloud native ecosystem. Ideally you'd have experience working with an IaC tool, i.e. Terraform, Pulumi, Ansible, CloudFormation, Kubernetes, or SaltStack.

Overall we have a deeply technical product, trying to build something customers love to use, and have a lot of happy and satisfied customers. We promise interesting work, the ability to open source parts of the project which don't give us a business advantage, as well as healthy working hours.

If that sounds like fun to you, please apply at https://careers.spacelift.io/jobs/3006934-software-engineer-...

You can find out more about the product we're building at https://spacelift.io and also see our engineering blog for a few technical blog posts of ours: https://spacelift.io/blog/engineering

Additionally, we're hiring for a new product we're building, Flows. Mostly the same requirements and tech stack, without the devops bits. You can see a demo of Flows and apply for it here: https://careers.spacelift.io/jobs/6438380-product-software-e...

Trunk | https://trunk.io

Marketing Lead (Developers) - Remote friendly | Tech Lead (CI & Test Data Platform) - San Francisco| Senior Platform Engineer - San Francisco | DevRel Engineer - San Francisco|

Trunk is an a16z funded (25M) Series A dev tools startup, redefining software development at scale. At Trunk, our mission is to help teams create high-quality software quickly. We've helped engineerings teams at: Google X, Zillow, and Brex to understand why their builds fail, which tests are flaky, and how to ship code faster without sacrificing reliability. AI has made writing code 10x faster, but shipping is still painfully slow. The bottleneck has shifted downstream - to merge conflicts, flaky tests, inconsistent code quality, and dozens of other frictions that drain productivity and morale. Engineering teams that can stay focused on designing, implementing, and delivering software will build magical, high-quality projects - and they'll be happier doing it. We're building a CI Reliability Platform that empowers teams to land code faster and develop happier!

Our products:

  * Merge Queue: Ensure your PRs keep the builds you care about green at any scale.

  *Flaky Tests: Detect and eliminate Flaky Tests.

Unlimited PTO (and we all actually take PTO), competitive salary and equity packages! Please apply here: https://trunk.io/jobs

Bliro.io - Privacy Preserving Conversation Intelligence Platform VC Backed, Seed Staged in Munich Germany.

Open Positions: https://jobs.ashbyhq.com/bliro

Highlights: - Founding Product Manager - iOS / Android Lead Developer - Founders Associate

Immunera | Principal Machine Learning Engineer | NYC area (hybrid) | Full-time | immunera.ai

Hey! I’m Maxim, cofounder/CEO of Immunera.

We're building blood tests that use gene sequencing and machine learning to help patients with autoimmune disease. Immunera spun out of years of research at Stanford, and our technology has been published in Science and covered by The New York Times.

We're hiring a Principal Machine Learning Engineer to shape the core models and infrastructure that power our blood tests. We are partnering with hospitals to generate training data from real patients for our language models and other biological sequence models.

This is a senior engineering role with significant autonomy at an early-stage, venture-backed startup. We're looking for strong experience building and operating ML systems in production (Python, PyTorch/TensorFlow, cloud platforms). Prior biology or healthcare experience is NOT required; we care much more about your ability to reason about data, models, and systems.

Full JD: https://www.immunera.ai/jobs

Contact: maxim@immunera.ai (subject: “HN ML job”)

Kadoa | Multiple roles | Remote | Full-Time | https://kadoa.com

We’re on a mission to give humans and LLMs reliable and fast access to web data.

Web scraping used to be the same for decades (brittle scripts that break constantly). We're automating that end-to-end with LLMs that build and maintain data pipelines. We're also heavily focused on making ethical scraping the default (robots.txt checks, rate limiting, etc.).

All 3 founders have spent years in the trenches writing web scraping and ETL software and still do it almost every single day. We’re making sure every team member can do the best work of their career at Kadoa.

We are looking for people who share our passion for software craftsmanship, data, and AI.

We are growing fast, have a no-bullshit culture, and try to minimize the distance between the code you write and the customers who use it.

We have openings for:

- Senior Frontend Engineer: https://www.kadoa.com/careers/frontend-engineer

- Senior Software Engineer: https://www.kadoa.com/careers/senior-software-engineer

If that sounds like you, please email me at (adrian at kadoa dot com) and mention HN in the subject line. AI slop applications will be filtered out immediately ;)

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: Except for interns, we currently require a Bachelors degree in physics, engineering, math, computer science, or a related field. Masters or PhD is a plus. (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/.

DoShare Labs | India | Locations : New Delhi, Bangalore, NY(US) , SF(US) ,Remote Positions we're hiring for :

1. Technical Liaison :

Requirements:

2+ Years of Working in Tech Experience | Good Communication Skills | Bachelors or Equivalent Degree

2. Infrastructure Engineer :

Requirements:

3+ Years of Experience as Infra Engineer | Stack - Python, Go, Kubernetes, GCP/AWS/Azure , Cloudflare

3. Project Lead (UI/UX) :

3 + Years of Project Development Experience | Good understanding of market requirements | A/B Testing | Engineer or similar degree

4. Customer Support Executives [English OR Hindi]

2 Years of Customer Support Experience | Speaking Skills | Ability to follow tasks at hand

5. Marketing Posts (3 Positions)

Experience with Marketing and Advertisement | Out-of-the-box Thinking Ability | Led or Organised Events

Note: Keep the position you're applying for in the title.

Apply via Mail : careers@doshare.me

Marker | Full-time | Remote or Hybrid (NYC/SF/London) | https://markercollective.com

Marker is a technology venture from 3 leading communications agencies. We’re an incubator building and launching force-multiplying software products for communications teams.

Our first product is Delve (https://delve.news) — a coverage monitoring, analysis, and insight toolkit to track and measure the entire online conversation about your business or industry.

Our product team is small and autonomous, but with the resources, expertise, and customer access of the global agencies we work with. We’re hiring an early engineer to join us on this journey; you’ll have a large impact on what we build, how we build it, and where we’re going next.

Our current technology stack includes Deno, React, and PostgreSQL. Bonus points for expertise in any of: data visualization, distributed systems, web scraping, large-scale data pipelines.

Contact: dylan (at) company domain. No recruiters or agencies, please.

John Carroll University Faculty of Practice in Data Science

Cleveland OH | Onsite

To view the complete job description and apply, please visit: https://jcu.peopleadmin.com/postings/3954 * Only applications and inquiries through this website will be considered.

The Department of Mathematics, Computer Science, and Data Science (MCDS) at John Carroll University invites applications for a Faculty of Practice (open rank, non-tenure-track) position in Data Science. This is an exciting opportunity to shape the future of our growing Data Science and Analytics program and serve as a vital link between our students and industry. We welcome applicants from a broad range of data science specialty areas. Faculty rank and salary will be commensurate with experience and academic credentials. Full consideration will be given to applications that are complete by January 12, 2026, although applications will be accepted until the position is filled. The anticipated hire start date is August 2026.

In addition to teaching a variety of undergraduate courses, the successful candidate will play a critical leadership role in the development and growth of our Data Science and Analytics curriculum and student outcomes. They will also collaborate with the Career Center to help establish industry partnerships and serve as a mentor to students pursuing careers in data science and analytics. Service to the department and university is also a key component of this position.

Duties and Responsibilities The successful candidate will play a critical leadership role in the development and growth of our Data Science and Analytics curriculum and student outcomes, including: - Teach a variety of undergraduate courses. Potential courses include data mining, big data and cloud computing, or agentic development. - Assist with crafting and implementing a vision for the Data Science and Analytics program, guiding its strategic direction and evolution. - Keep up to date on trends in Data Science & Machine Learning, given traditional DS techniques are being handled by AI (e.g. exploratory data analysis, outlier detection, etc.). - Collaborate with the Career Center to help establish industry partnerships, serving as a key industry liaison to facilitate internships and career opportunities for students. - Mentor and advise students pursuing careers in data science and analytics. Contribute to departmental and university service, including participating in cross-university data initiatives.

Required Qualifications - A Master’s degree in a related field. - Experience communicating findings effectively in the professional world. - Interest and enthusiasm in working with undergraduate students in a liberal arts environment. - Familiarity with strong pedagogical practices, including active learning approaches.

Preferred Qualifications - Prior teaching experience as an instructor of record at the undergraduate level. - Industry experience in data science or an adjacent analytical field. - Evidence of effective teaching, training, or mentoring at the college level or in professional settings.

Pango | Founding Full-stack Software Engineer | On-site (hybrid) in Stockholm, Sweden (Visa Sponsorship possible) | Full time

Pango is building the world's first Agentic Operating System for e-commerce logistics. Our vision is to create the AI e-commerce employee of the future. We are forming our core team in Stockholm and are looking for exceptional engineers. We are based at the SSE Business Lab, where companies such as Klarna, Voi, Budbee or Legora originated. We have achieved a product-market fit and are growing rapidly.

You are a good fit if:

* You are comfortable maintaining, expanding and operating an entire B2B SaaS platform with a high sense of ownership.

* You are happy to take on work that in a large company is divided into a dozen roles, and execute it all at a good enough level.

* You are unafraid of any technology. If we need a desktop app and you haven't done one before, you will study the documentation of Electron.js and build one. If a model for predicting delivery times is needed, you will do a literature review to find the right architecture and train one.

* You have strong proficiency in any backend language or platform, with a strong willingness to dive deep into PHP/Laravel OR strong proficiency in JS/React.

* E-commerce (Shopify, Magento, other platforms, shipping carrier integrations) experience is a plus.

You will take a key role in shaping the product and company, with ability to make an impact and advance career limited only by your aptitude and interest.

Reach out to lukasz@trypango.ai if you are interested or have any questions. We review applications immediately and move quickly.

FetLife | Senior DevOps Engineer | Full-Time | Remote | 115k - 180k USD - https://fetlife.com/jobs/devops-engineer

Role: Develop and implement infrastructure upgrades, database tuning, Kubernetes and Helm orchestration, monitoring, and security. Help maintain and improve our large-scale Rails monolith, including CI/CD. Participate in on-call rotation and help automate daily DevOps tasks.

Stack: MySQL/PostgreSQL, ScyllaDB, Redis, ElasticSearch, Terraform, Google Cloud, DataDog and more.

Applications: Rails, Vue.js/Typescript, Rust

Perks: Paid time off (2 weeks vacation, 5 statutory holidays, 2 weeks at Christmas, 4-day summer workweeks), annual company retreat, anniversary gift ($200/year), monthly music subscription reimbursement, fully paid maternity & paternity leave.

About Us: FetLife is the largest kinky social network with 10M+ members, 100% word-of-mouth growth, and billions of daily requests.

How to apply: Email jointheteam+do+hn@fetlife.com with a brief introduction, 2–3 favorite projects, GitHub/GitLab link, and LinkedIn profile or resume (PDF).

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Senior Product Manager | Full-Time | Remote | $140k - $200k USD - https://fetlife.com/jobs/product-manager

Role: Understand member needs, craft detailed product pitches, drive discovery, reduce friction, own product metrics, and guide strategy to deliver meaningful value across our large-scale platform.

Perks: Paid time off (2 weeks vacation, 5 statutory holidays, 2 weeks at Christmas, 4-day summer workweeks), annual company retreat, anniversary gift ($200/year), monthly music subscription reimbursement, fully paid maternity & paternity leave.

How to Apply: Email jointheteam+pm+hn@fetlife.com with a brief introduction, 1-2 examples of measurable product impact, and LinkedIn or resume (PDF).

Piq Energy | Full Stack Software Engineer | SF, Athens, or US REMOTE | Full-time | $150k-$250k + equity (SF; location-adjusted)

https://jobs.gem.com/piqenergy/am9icG9zdDp5j21vRWEpgIUq005H6...

Piq Energy builds software that helps renewable and large-load developers get projects connected to the electric grid faster. We automate grid interconnection studies and planning workflows.

You’ll own features end-to-end: interactive frontend, backend APIs, data pipelines, AI agents, and power systems simulation workflows. We’re looking for experienced generalists who like ownership, real-world impact, and scaling startups.

Stack: Typescript, Svelte, GraphQL, Mapbox, D3.js, Python, LLM agents, Postgres, workflow orchestration

Clever Benefits | Scottsdale, AZ (Hybrid — 2 days/week onsite, North Scottsdale) | Full-time | $140k–$180k | Senior Full Stack (React/React Native/Node/AWS)

Clever Benefits is hiring a Senior Full Stack Software Engineer to help build and scale our platform. You’ll ship end-to-end features across a React web app, React Native mobile app, Node.js/TypeScript backend, and AWS infrastructure. Small team, high ownership, production focus.

Stack: TypeScript, React, React Native, Node.js, Prisma, PostgreSQL, tRPC, AWS (Lambda, ECS/Fargate, S3, RDS), CI/CD.

Requirements: 8+ years experience; strong TypeScript; production React + React Native + Node; solid AWS background; Prisma/Postgres/tRPC; comfortable owning features from design → deployment. Must live within 30 miles of North Scottsdale and be able to be onsite 2 days/week.

Nice to have: TestFlight/Play Store workflows; monorepos (pnpm/bun workspaces); IaC (CDK/Terraform). Interest in using AI to accelerate development (codegen/automation) — with an emphasis on maintainable, high-quality engineering.

How to apply: Email your resume + a short note (and links/GitHub if you have them) to sal@cleverrx.com with subject “HN — Senior Full Stack Engineer”.