Mitte (https://mitte.ai) | Berlin | ONSITE | Full-Time

Mitte is an AI creative suite. We've built our own media agent and we're hiring engineers who want this to be the best work of their career.

Founded by an ex-Superhuman lead engineer. Lean startup and unix philosophy run deep at Mitte. We ship every day and like to design systems, be thoughtful about patterns and primitives before scaling the codebase, especially with AI.

We're hiring:

- Backend Engineer (Elixir, Go) — own services end-to-end, from agent orchestration to the systems that move media at scale.

- Full-Stack Engineer (Go, TypeScript, Redux Toolkit) — build the surfaces creators actually use. Strong design taste and obsession with detail expected.

Berlin, on-site. We work in the same room because the product is moving too fast for anything else.

Reach out: careers@mitte.ai — tell us something you've built that you're proud of, and why it was hard. Berlin based applications only.

Fuck mosquitoes, go get em

Yassi|Senior Fullstack Engineer (Golang, Node.js/React, AWS) 3 days in-office Chicago

YASSI provides real-time access to vehicle title, lien, and registration data directly from U.S. state motor vehicle agencies. Unlike traditional bulk data providers, YASSI retrieves each vehicle record live at the time of request, ensuring the most accurate and current information available.

YASSI is the only provider offering an enterprise-grade solution purpose-built for real-time vehicle data at national scale. In addition, YASSI is uniquely positioned as the only platform that combines real-time vehicle record access with digital repossession title processing, enabling lenders to verify lien status and complete repo titling workflows within a single, integrated solution.

We’re rethinking how vehicle data, titling, and compliance infrastructure works— bringing real-time connectivity and transparency to an industry that’s long overdue for modernization. We are already profitable 6 years in. That is unique for a start-up.

Actively building out our engineering team in downtown Chicago and we are open to senior/staff level.

Job description here:

Sr. Full-stack Engineer - https://apply.workable.com/yassi/j/60C534A983/

Email at: patti -dot- lopez - at - yassi - com

Fixly | Senior Software Engineer (Backend, Node) | Poland | Remote (PL) | 2 days in office per month | Polish language required

Fixly is one of the largest service marketplaces in Poland, connecting customers directly with local service providers — from handymen and electricians to accountants and language instructors. We're a product team building the platform that helps thousands of professionals find work every day.

We're hiring a Senior Software Engineer to join our team. Remote-first within Poland, with one 2-day onsite in Poznań each month (travel covered). Polish language required.

What we're looking for:

- Strong backend experience with Node.js - Senior-level engineer comfortable owning systems end-to-end

Big pluses:

- DevOps experience - AWS experience - Frontend, Golang, or mobile experience

If you're a backend engineer who's also picked up infra/cloud chops along the way, we'd love to talk.

Interested? Send your CV/resume to recruitment@fixly.group and mention HN — we'll get back to you.

Coop (https://smart.coop.farm)| 2nd Founding Engineer | iOS Heavy Engineer | Hybrid onsite | Austin, TX | Full-time, Part-time

My name is AJ Forsythe and I'm the Founder / Chief Chicken Tender at Coop! We're an Austin TX based company on a mission to build the world’s largest decentralized food production network, starting with AI powered chicken Coops. We’ve been in the market for about 18 months and our customers are in 48 states and will generate about >10M eggs this year. It's insanely fun to work on and we have a shot at building a huge business in the connected urban farming space. If you’re big into computer vision, consumer products that are fun, and an awesome team we would love to chat. The Coop has an automatic door + cameras doing computer vision work (predator detection, egg alerts, remote health monitoring, etc). It's a super exciting time and are seeing directional product market fit which I'm thrilled about. Seriously go check out our website, it's a super fun + amazing product.

We’re a tight-knit team of 5 people with 15+ years of experience working together. We’ve been through YC, started and scaled multinational million-dollar businesses together, taking them from idea to acquisition by a Fortune 50 company. We’re gritty and passionate without taking ourselves too seriously - and we’re here to build something really exciting that helps people reconnect with their food and the planet. We're VC backed (call it $5M) by some of the world's best investors but we are a scrappy small team that moves fast.

We have an absolutely fantastic CTO Ryan that I'm looking for his / our right hand person to work alongside with. I think the term full stack is overused but that's closest to what we're looking for. Also this really isn’t a traditional Eng role, I look at it as we’re a small growing team and you would be one of us working on a ton a cool projects on day 1. Also, we LOVE working with founders so if you've started a company before that's epic.

You can also reach out to me directly at: aj[at]coop.farm - Just email me your LinkedIn / GitHub / portfolio + why you think you'll be an awesome fit and I'll respond. Please don’t use GPT too much. This is my 3rd company (2 have exited) and I want to build the super solid core team and you might be the perfect fit for us and vice versa.

Bwok Bwok! AJ

DuckDuckGo | Multiple Roles | Remote | Full-time | $178,500 - $242,800 USD + equity

We are looking for candidates that are excited to join us on a mission to raise the standard of trust online. All of our roles are fully-remote, except where specific locations are noted.

Most of the software engineering positions have been repeating here for years because we've been continually hiring for them, scaling our whole team to now over 300 people—many of those hires have come through Hacker News. We've been improving our hiring process over time, and we know some good candidates may have fallen through the cracks. Some people who tried in the past have had success going through it again, and we still pay for hiring projects.

Engineering Director, Backend - $242,800 USD + equity https://jobs.ashbyhq.com/duck-duck-go/3be5b69c-bacc-48fb-941...

Senior Backend Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/53022b02-da3d-4fda-827...

Senior Android Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/57eea673-2519-4afc-a9a...

Senior iOS Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/a1239b43-0c9a-45a4-b35...

Senior Software Engineer - Windows Desktop App - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/47e569c6-f995-4955-a89...

Senior Data Scientist - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/a447e823-fd8f-438f-909...

Director, Data Science - $242,800 USD + equity https://jobs.ashbyhq.com/duck-duck-go/0269aeaa-8d8f-4c8d-b78...

Senior Legal Counsel - Subscriptions & Marketing - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/4ebedcfb-c89f-4cab-bf1...

and MORE: https://duckduckgo.com/careers

Kinelo | kinelo.com | San Francisco | Onsite (with a bit of flexibility)

Kinelo solves "context myopia": autonomous and semi-autonomous AI agents don't know what they don't know, so they can't search or find the background information required to accomplish tasks accurately and effectively. The result looks like slop but it's not due to model performance, more due to workflow integration. From there, we're rapidly moving into organizing humans together with autonomous "AI coworkers" into workflows that span both. Our goal is to change how organizations are run and structured.

We're hiring for two roles right now:

- Product Engineer (https://job-boards.greenhouse.io/kinelo/jobs/4205846009) -- do you have the software engineering wisdom not yet encoded in an LLM? and do you have product sense and the willingness and desire to think several steps ahead in the market?

- Founding GTM Lead (https://job-boards.greenhouse.io/kinelo/jobs/4215784009) -- there's no playbook for go-to-market in the category we're creating + the landscape is changing daily. Come architect a strategy and then move mountains to execute on it and help us grow insanely fast.

Competitive salary, meaningful (~first batch of hires) equity, founder previously exited to Apple, strong fundraising history (~$10m).

Please email us at jobs@kinelo.com.

If you want to stand out:

- For the product engineer role, tell us how you think the job of a software engineer is changing.

- For the GTM role, tell us about a time you got massive results with limited resources, all through your ingenuity, creativity, and hard work.

Gladly | Remote (US) | Staff Software Engineer, AI & Automation | $60k–$215k + Equity | https://www.gladly.ai/careers

Gladly is at the forefront of building retail customer service AI. Our AI is live in production with customer-centric brands like Crate & Barrel, Sephora, and REI. We have the ingredients that make AI work: rich data, close customer partnerships, and a strong engineering culture.

We're hiring Senior & Staff Software Engineers to lead major AI & Automation initiatives. This is a high-impact, hands-on role for someone who wants to ship fast, collaborate deeply, and build systems that help real people.

You should have:

- 5-10+ years of full-stack experience (Go, TypeScript, React, Postgres a plus)

- Experience with generative AI, multi-agent systems, RAG pipelines (can be personal projects / side projects)

- A bias toward impact and product thinking

- Excellent collaboration and communication skills

Bonus: Entrepreneurial or other leadership experience. We're a remote-first company with competitive pay, meaningful equity, and a focus on doing real work with great people. Learn more + apply: https://www.gladly.ai/careers Or reach out directly: gerad@gladly.a

River | Senior + Staff Engineers (Elixir, React, ML/AI) | SF or NYC or REMOTE (US, Europe, South America) | Full-Time | $150K-$250K + equity | https://jobs.ashbyhq.com/river?utm_source=Zp9nJyqvd4

I'm Alex, founder and CEO of River. I also wrote the first line of code and still ship PRs.

River is a client-first Bitcoin-only financial institution building the financial app people use every day to save in bitcoin and spend in dollars. We custody over 25,000 BTC, serve individuals and businesses across the U.S., and are profitable. We publish cryptographic proof of reserves monthly and our company financials annually.

Here's what our engineering team is working on:

  - Real-time Bitcoin and USD payments, trading, and settlement on an Elixir monolith with a unified GraphQL API
  - Next-generation Bitcoin custody with quorum signing, key ceremonies, and geo-redundant infrastructure
  - Scaling our ML/AI systems (Python, PyTorch, XGBoost, LLMs) to automate operations and tackle fraud/risk
  - A ground-up React and React Native rewrite of our consumer app
  - Porting our Lightning Network infrastructure from Go into Elixir

  - Staff Software Engineer (Elixir) | $200K-$250K
  - Senior Software Engineer (React, Full-stack) | $150K-$220K
  - Senior/Staff Machine Learning Engineer | $200K-$250K

vvd | Design Engineer | Remote (work from anywhere) | Full-time | React, TypeScript, Next.js

https://vvd.world

We’re building tools for storytellers, worldbuilders, writers, and creators.

We’re looking for a Design Engineer who can design and build polished product experiences end-to-end. You should care deeply about taste, interaction, motion, and frontend craft, but also understand enough about APIs, auth, and data flow to avoid getting blocked.

We’re AI-native, but not trying to replace human creativity. We use tools like Cursor and Claude Code as leverage to move faster while keeping a high quality bar.

Strong fit if you’ve shipped real things, can go from rough idea to polished implementation without waiting for perfect specs, and have built interfaces that feel good, not just functional.

Apply: https://apply.workable.com/vvd/j/43FDC8C9AA/

Chestnut | Senior Product Engineer | SF or Seattle (Hybrid) | https://jobs.ashbyhq.com/Chestnut

I'm Nick, CTO & co-founder. We're Rippling, but for insurance carriers paying their sales force. Every policy sold triggers a chain of payouts across brokers, agents, and sub-agents. Today that runs on spreadsheets and legacy vendor systems and tomorrow they'll run on Chestnut. Nationwide and other major carriers have already made the switch.

Revenue is up 8x in the last year. We're backed by a16z. Founding team came out of leadership at Ethos (insuretech that recently IPO'd in January).

The work is state-heavy and correctness-critical: payouts that must reconcile with finance to the cent, dynamic agent hierarchies, retries, chargebacks, partial failures. These systems move real money and cannot drift.

You'll design schemas, build backend logic, ship UI, deploy, and own the sharp edges that show up with real enterprise customers.

Stack: Go, TypeScript/React, Postgres, Temporal, Kubernetes, AWS. We use AI aggressively and expect you to as well.

We're looking for 3–6 years on real product systems. You're thoughtful about invariants and failure modes.

Apply: https://jobs.ashbyhq.com/Chestnut

Email me: nick at chestnutfi.com

GAIM | Onsite (Malmö, Sweden / Copenhagen, Denmark) | Full Time | gaim.com

GAIM is a marksman training simulation game, we're expending our development team with a Rust programmer to help work with our next generation backend to support on-the-go analysis of their performance in the simulator.

Prior gamedev experience is a bonus but not required.

Email in profile, or reach out over linkedin: https://www.linkedin.com/in/jharasym/

Due to export controls of this kind of simulator, applicants must be EU citizens.

Sumble is the newco from the founders of Kaggle. We are hiring full stack engineers, ai/ml engineers and growth/marketing. Can view our roles and apply here: https://sumble-inc.workable.com/ We are building a knowledge graph from web data with a first focus on data for go-to-market teams.

We use web 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 world's best data vendor. Try the product at sumble.com.

We are a team of 25 with experience at companies such as Google, Meta, Stack Overflow, Rippling, Snowflake, Confluent and Kaggle.

We raised $38.5MM from Coatue, Canaan, Square Peg Capital https://techcrunch.com/2025/10/22/sumble-emerges-from-stealt...

Opendate | Senior Full Stack Engineer (Ruby on Rails) | REMOTE (US only) | Full-time | https://www.opendate.io/careers/senior-full-stack-software-e...

Opendate is the operating system for live music venues — booking, ticketing, marketing, and settlement, all in one place. We replace the tangle of spreadsheets, holds-and-confirms email chains, and ticketing platforms that independent venues, promoters, and festivals have been duct-taping together for decades. Customers range from 200-cap clubs to multi-day festivals.

We're a Rails shop with real backend problems: multi-tenant ticketing at on-sale scale, financial settlements that have to reconcile to the penny, and integrations with the rest of the music industry's plumbing (Stripe, Dwolla, Seats.io, Twilio, SendGrid). If you like systems where correctness actually matters and the users are people you can go meet at a show, you'll fit in.

Stack: Rails, React/Redux, PostgreSQL, Redis, BigQuery, AWS, GCP, Docker, Terraform. Flutter on mobile. AI-first engineering culture — Cursor, Claude Code, and Copilot are part of the daily workflow, not banned from it.

100% remote within the US (no sponsorship), with optional Indianapolis or Chicago offices if you want them. Looking for 5+ years of senior full-stack experience, comfortable owning projects end-to-end and shipping to production weekly.

Apply: https://www.opendate.io/careers/senior-full-stack-software-e...

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

Sectigo | Manager, Software Development | HYBRID (Canada) Ottawa,

Company Description

At Sectigo, we align around our mission and pride ourselves in helping thousands of customers sleep better at night.

Sectigo is the most innovative provider of certificate lifecycle management (CLM), delivering comprehensive solutions that secure human and machine identities for the world’s largest brands. Sectigo’s automated, cloud-native CLM platform issues and manages digital certificates across all certificate authorities (CAs) to simplify and improve security protocols within the enterprise. Sectigo is one of the largest, longest-standing, and most reputable CAs with more than 700,000 customers and two decades of delivering unparalleled digital trust.

Job Description

We are looking for a talented Manager, Software Development to join our growing global team at Sectigo.

The Manager, Software Development leads a team of software engineers in building secure, scalable, and high-performing applications. The ideal candidate will have a strong background in application development (PHP, Ruby, Golang, cloud deployments) best practices and a solid understanding of SSL/TLS certificates, private keys, and secure communication principles. This role combines technical leadership with strategic oversight to ensure the delivery of robust and secure solutions.

Apply: https://jobs.smartrecruiters.com/Sectigo/3743990012649388-ma...

MongoDB | Senior/Staff/Lead Site Reliability Engineers (SRE) and Infra SWE, Multiple Teams | REMOTE (US) or HYBRID (NYC, Dublin) | Full-Time

We are looking for experienced Site Reliability Engineers and Infrastructure Software Engineers to help build, scale, and secure the foundation of MongoDB Atlas, our globally distributed, multi-cloud database platform running across AWS, GCP, and Azure.

SRE at MongoDB is a builder role. We are heavily focused on making the platform more scalable, resilient, secure and self-service.

We have open roles (Senior, Staff, Lead) across several of our core Infrastructure teams:

- Infrastructure Security (InfraSec): Building infrastructure security controls and security observability tooling leveraging eBPF and Linux security mechanisms.

- Fabric: Building out service mesh, networking, and internal traffic routing.

- Storage Layer Services: Building our next-generation disaggregated storage architectures.

- Fleet Management & Deployments: Automating the lifecycle, deployments, and control planes of massive multi-cloud Kubernetes clusters.

- Atlas Infrastructure: Building core infrastructure operations on hundreds of thousands of Linux servers.

We're looking for engineers with a strong systems mindset who have:

- 5+ years of experience in SWE, SRE, or similar roles.

- Proficiency in at least one programming language: Golang, Rust, Python, C/C++ etc.

- Deep understanding of Linux internals, networking, distributed systems, and/or Kubernetes.

- Familiarity with at least one major cloud provider (AWS, GCP, or Azure).

- A builder's mentality: you think about failure modes, observability, and operability alongside correctness.

For any questions, or to apply directly (please mention HN) email: hani.benhabiles+hn@mongodb.com

You can view our open roles at: https://www.mongodb.com/careers/jobs

Join (https://join.build) | Staff Software Engineer | Remote | $175K–$205K + equity Join builds collaboration software for the construction industry — helping contractors, owners, and architects coordinate on high-value projects. React, Golang, Postgres. We deploy to AWS via Terraform.

We're hiring multiple staff engineers across a range of profiles: frontend-heavy, fullstack, and backend-heavy. We're especially looking for 1–2 engineers with architect-level frontend chops (React, TypeScript, state management, perf) who can own UI quality and level up the team. But we're also very interested in strong Go/Postgres or infra/ops backgrounds.

Day to day you'll write code (25–75%), review PRs (25–50%), and pair/mentor/document (10–20%). You'll act as a technical lead on projects, break down large efforts, and influence architectural decisions across the org. Small cross-functional teams with a designer, PM, and EM.

Stack: React, TypeScript, Golang, Postgres, GraphQL/Apollo, Vite, Cypress, Terraform, AWS (ECS, RDS, Lambda). We lightly use Elastic and are interested in event-driven patterns.

Fully remote, 100% employer-paid medical, 401(k), two company-wide shutdown weeks, continuing education budget.

To apply: send resume to jon@join.build. If you are able to please include a PR review you've given that had a positive impact (or a description/snippet if that's confidential).

Aqora | Paris, France / US / Remote (EU) | Multiple roles | https://aqora.io

Aqora is the "Hugging Face for quantum computing". We host datasets, benchmarks, and use-case challenges, plus the orchestration layer to run quantum algorithms and workflows across hardware backends, so results are reproducible, comparable, and actually move the field forward. We grew out of the QuantX hackathons at École Polytechnique and now run competitions and a public datasets hub for partners across pharma, finance, energy, and defense.

We're hiring:

* Senior Full Stack Software Engineer. Build the platform end to end: datasets hub, challenges, leaderboards, and the workflow engine that orchestrates quantum jobs across backends. You own features from schema to UI and care about developer experience. Bonus: data, ML, or research-platform experience.

* Quantum Computing Expert. Design challenges, curate datasets, define benchmarks, and shape how algorithms and workflows run on the platform. Work directly with enterprise partners to translate their problems into something the community can solve. PhD or equivalent depth in quantum algorithms, QML, or optimization.

* Chief Commercial Officer, US. Own US go-to-market end to end: strategy, enterprise pipeline, team build-out. You've scaled commercial functions at a deep-tech, dev-tools, or research-platform company. Based in the US.

* Head of Marketing. Positioning, demand gen, and brand for a category still being defined. B2B technical marketing background required; quantum experience welcome but not necessary, curiosity is.

* Product Manager. Drive the roadmap across the datasets hub, challenges platform, benchmarks, and workflow orchestration. Strong technical instincts and experience shipping developer or research-facing products.

* Sales, EU. Enterprise sales into R&D and innovation teams across Europe. Long, technical sales cycles, consultative selling, comfort talking to PhDs and procurement on the same day. EU-based, remote.

Reach out to jannes[at]aqora.io with a short note on why this problem space and what you've built or sold before.

Project Debug | General Engineer | Singapore (HYBRID) | Full-time | debug.com

Project Debug raises, sorts by sex, and releases millions of (non-biting) male mosquitoes in Singapore to reduce the local mosquito population and prevent the spread of dengue and other mosquito-borne illnesses. Our trial in Fresno, CA showed a 95% reduction in female mosquitoes during the seasonal peak.

Our engineering team is pretty small and we need a solid generalist engineer who is interested in becoming a domain expert in our factory, where we do automated rearing and sex sorting. If you run a homelab, have tinkered with Arduino, and can prompt/write some Python, we can teach you everything you need to know about our stack (Go, Python, React, Kubernetes, Tensorflow).

Reach out to katejm@debugproject.com and please mention HN in your email.