Kredit | .NET Engineer Roles | Remote (US) | Full-time

Kredit (https://www.kredit.fyi) is on a mission to resolve consumer debt. We help people get out of financial hardship and offer tools for companies looking to manage their internal processes. Kredit is a small team and growing.

Our stack: .NET Core, C#, PostgreSQL, CQRS, Angular, GCP, Kubernetes, Terraform and much more.

We are looking full-stack engineers that have a .NET background, eager to learn and motivated to work in a startup.

If this sounds interesting to you, please reach out to recruiting at trykredit.com

Bond Home | ON-SITE in Florianopolis, Brazil | FULL TIME | Multiple Roles

We are building smart outdoor living spaces.

Come work with a cracked team, in-person, building primarily for the US market.

Interested to hear from talented: firmware engineers (C), mobile (iOS/Android native), backend (Python), UX designers, & quality engineers.

We're heavy users of agentic coding (Claude), looking particularly for engineers who can scale their output with increased access to compute, while being meticulous about security & quality.

Hiring exclusively in Brazil. Must be in or willing to relocate to Santa Catarina. We have an office right by UFSC. We work with a lot of hardware and so an in-office culture is efficient.

Some travel to USA required.

email a pitch to: merck@olibra.io

Kinelo | kinelo.com | Full-Stack Engineer (AI + Backend) | San Francisco | Onsite

Kinelo manages the new type of hybrid team that will emerge in the future: humans+AI working shoulder-to-“shoulder”.

Our first product helps human software engineering teams deliver more efficiently and more reliably by assisting in coordination and engineering management. But it’s built on a foundational layer that ingests data, knowledge, and process across communications and systems, exposing that to humans and AI alike.

Eventually, Kinelo will become a proper human+AI orchestration layer, managing entire companies, and our goal is to have Kinelo run Kinelo (we already dogfood it today).

We’re looking for high ownership individuals to join our small team and shape its direction. We also just opened a new SF office and new hires will have the ability to help shape company culture, engineering practices, architecture, and roadmap.

We’re well-funded (just raised another round), founded by a serial founder, anti-bureaucratic, and highly technical.

We’re looking for:

- Those who want to go 0 to 1 with high ownership: moving features and products from idea on a napkin, to prototype, to engineering UI, to shipped and polished product

- ~8 years professional experience, including the pre-LLM days with strong CS fundamentals

- A balance of wisdom from experience and optimism about the future

- Strong TypeScript and Postgres (or other RDBMS) experience at scale and with high reliability (SaaS apps, APIs, etc)

- Experience with a variety of technologies, including containerization, distributed systems, and at least one strongly typed programming language (Go, C++, Java, etc)

- Ideally experience with ML and AI systems (though expertise in ML, data science, etc is not needed for this role)

We can’t sponsor visas but relocation assistance to SF is possible.

Please apply here: https://job-boards.greenhouse.io/kinelo/jobs/4088659009 and also email jobs@kinelo.com, mentioning this post.

Trail of Bits is a cybersecurity research and consulting firm based in Brooklyn, NY. We work with companies like Epic Games, Google, Microsoft, and Zoom on their hardest security problems: smart contract audits, application security, vulnerability research, and more.

We're hiring 10-12 summer interns (June-August) to work on real client projects and research alongside our security engineers in NYC. You'll contribute to software security assessments, tool development, and research that gets published. What we're looking for:

Strong technical skills: C/C++, Rust, Go, Python, Solidity, etc. Experience in reverse engineering, appsec, program analysis, smart contracts, or cryptography

NYC interns get the full experience: Summercon, team events, Broadway shows, and more.

Remote available for strong candidates.

Actively reviewing applications and interviewing now.

Apply: https://apply.workable.com/trailofbits/j/0C784B6D41/

Valis Insights (VALIS) | Full-time | Software Engineer | remote-first hybrid Massachusetts (US) Hi, I'm Caleb (co-founder/CTO) from Valis Insights. We're a small climate-tech B2B SaaS/HaaS startup, based out of MA. We build material sampling, sorting analytics, and material monitoring web-based and hardware/computer-vision enabled solutions for metals recycling companies.

We're looking for a passionate SWE with some linux/networking/firmware experience to drive forward some greenfield product development and help scale & deliver existing hardware-enabled offerings. We've got some scale-integrated cameras deployed in the field which enables a web-app for analytics for material sampling. We've got a few units deployed at metal recycling facilities, and we're ramping up sales. We're also building a camera-over-conveyor-belt solution for process monitoring (greenfield dev/R&D).

Desired Competencies: linux, networking, basic electronics, firmware, cloud infra (AWS), web products, databases

Nice-to-Have Experience: edge-to-cloud CV system deployment/design, .NET ecosystem (C#, EF), networking (Wireguard, ssh), firmware dev/mgmt, observability (OpenTelemetry, Prometheus), IaC (Pulumi), stats/math/ML/signal-processing fundamentals, basic soldering, web products (TypeScript, React)

Role is remote-first hybrid. For some hardware/firmware/R&D, you'll need to be in-person in Worcester MA, but majority of role is remote. Infrequent travel to recycling facilities (continental US) for deployment/maintenance will be required.

Apply here - https://apply.workable.com/valis-insights-1/j/A937EAA712/ We read and review every application. Please mention "HN" in one of the written responses.

We're also hiring an ML/SWE intern for the Spring & Summer; apply here - https://apply.workable.com/valis-insights-1/j/98C0E1509B/

Contact: caleb.ralphs@valisinsights.com

Thunder Compute, YC S24 | https://www.thundercompute.com | In-person in San Francisco

Hiring 4 full-time Software Engineers for low-level C++ systems work (HFT skillset preferred), reporting to the CTO, team from Citadel Securities, Aquatic, Old Mission, Bain

We're a cloud provider using GPU virtualization software to arbitrage GPU prices.

We research technology to use GPUs more efficiently than competitors. Our cloud network attaches GPUs over TCP to eliminate downtime. This lets us buy GPU compute, make it more efficient, and resell it at 60%+ profit margins.

We recently closed ~$4.5M of funding to recruit the world's best low-level talent.

If you're cracked at building C++ systems software and looking to do something more meaningful than creating liquidity in the market, reach out.

To apply: email met at carl@thundercompute.com and mention HN. I read every email.

Shorebird | Mid-Senior C++/Runtime OR Dart/Cloud Engineers | REMOTE (North America) | Full-time | $150-230k + equity + benefits | https://shorebird.dev

Flutter/Shorebird founder here. Flutter is used by millions of devs (and nearly ⅓ of free apps submitted to AppStore), but is missing services for businesses. We offer Flutter-related SAAS used by 1000s businesses globally, on track to profitability early 2026.

As part of our over-the-air updates “code push” product, we’ve built a custom compiler and runtime for the Dart language, primarily written by me (founder/CEO). We need a fulltime engineer to take over primary responsibility for all of our C++ code (Dart & Flutter forks, custom runtime, compiler, etc.) and evolve it further than I could alone. You don’t need to be a compiler/runtime expert. You do need to be capable of working on large open source projects, be comfortable with C++, want to work at a startup, work well independently (we’re remote) and want to learn and work on lots of different areas of code. If you’ve contributed at least a little to WebKit, Godot, Firefox, or any other open source project and are at least compiler/runtime curious, you will likely find this role extremely rewarding.

For our second role: we serve 10s of millions of devices daily from our cloud, (2k+ RPS sustained), built mostly in Dart on Google Cloud + CloudFlare. We’re in the process of launching a CI product and have a lot of cloud development work ahead of us. You need some cloud experience, want to work at a startup, and be willing to work in Dart (what our customers use).

We’re a small, senior team, making something people want. Tech: GCP, Cloudflare, React, Dart, C++, Rust. Shorebird operates almost entirely in the public over Discord. https://discord.gg/shorebird

https://shorebird.dev/jobs

Kredit | .NET Engineer Roles | Remote (US) | Full-time Kredit (https://www.kredit.fyi) is on a mission to resolve consumer debt. We help people get out of financial hardship and offer tools for companies looking to manage their internal processes. Kredit is a small team and growing. Our stack: .NET Core, C#, PostgreSQL, CQRS, 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 recruiting at trykredit.com

Kredit | .NET Engineer Roles | Remote (US) | Full-time

Kredit (https://www.kredit.fyi) is on a mission to resolve consumer debt. We help people get out of financial hardship and offer tools for companies looking to manage their internal processes. Kredit is a small team and growing. Our stack: .NET Core, C#, PostgreSQL, CQRS, 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 recruiting@trykredit.com

NobodyWho | Copenhagen, Denmark | Software Engineer, ML Engineer, DevRel | Full-time | ONSITE

NobodyWho is making developer tools for running small language models in local-first applications. Our core principle is to ship the model weights along with the application, and then do efficient inference locally and offline, on any device. We run fast on Linux, MacOS, Windows, Android and iOS.

The main product is an inference library that wraps llama.cpp, written in Rust. We provide bindings for Python, Godot (the game engine), and will be releasing a Flutter plugin soon. It's all licensed under EUPL 1.2

We're hiring people who are comfortable building highly cross-platform FFI applications in Rust (with C++ dependencies), and people who are deeply familiar with language models and the open standards around them. We're also looking for a technical DevRel profile.

If any of that sounds relevant to you, feel free to email me: a>at<nobodywho.ooo

Gatehouse Satcom | Denmark | Lead Software Engineer – for 5G/ 6G Satellite Communication | ONSITE

We’re at the forefront of the 5G satellite revolution, serving a global network of operators. Our technology enables broadband connectivity on mobile devices – linking devices via satellites in orbit. From concept to commercial operation, we support our customers with feasibility studies, lab kits, and other tools that enable them to validate and verify solutions before deployment.

You'll be an integral part of our 5G NTN development team, a blend of seasoned and fresh talents dedicated to advancing 5G NB-IoT/New Radio technologies. Your role will centre on designing, implementing, and testing C/C++ software. Utilizing tools like Git and JIRA, you'll contribute to well-structured and efficiently planned projects.

For the right candidate, the role can expand into team lead responsibilities where you will play a key part in planning the day-to-day activities of a self-driven team of 5-10 skilled SW engineers.

Given our niche's international scope, occasional travel to meet customers and partners may occur. About you

With an engineering background in software, electronics or embedded systems, your expertise includes:

    - DSP, GPU, ML and Protocol stack development (OSI Layers 1-4) for wireless/communications systems.
    - 5G NB-IoT and New Radio experience and knowledge is an advantage, but strong SW design and development skills, a good system understanding and ability to learn fast is more important.
    - Programming in C, C++ and Python
    - Object-oriented software development expertise is required.
    - Design, Development, testing, and debugging of real-time and embedded software.
    - Optimizing for highly efficient code execution on embedded platforms
    - Experience with development/deployment in Linux as well as Hardware acceleration is an advantage

Your self-driven nature, teamwork skills, and pioneering spirit are essential for developing new technologies from scratch. Experience in international collaborations and fluency in English will be advantageous.

Apply here: https://nordictechjobs.com/jobs/xThKxtthRS

StorPool | Senior Software Engineer - Storage Core (C/Linux) | Remote (UTC-1 to UTC+5) | Full-time | Multiple roles

StorPool is building the future of data storage. Our software runs at the heart of modern clouds, delivering <100µs latency, 113M+ IOPS per cluster, and 99.999% availability. We're profitable, self-funded, and our customers love us (NPS off the charts).

We're looking for a Senior Software Engineer to join our Core Storage team. You'll tackle genuinely hard problems: writing custom Linux drivers, optimizing lock-free data structures at nanosecond scale, building fault-tolerant distributed algorithms, and debugging issues that go all the way down to kernel internals. This isn't CRUD work - it's systems programming at its most challenging.

Competitive salary, fully remote, meaningful time off, and a yearly education budget to keep learning.

If you get excited about shaving microseconds off I/O paths and building infrastructure that simply doesn't break, we should talk.

Apply here: https://storpool.com/force/senior-software-engineer-storage-...

Thothmind | Software Engineers (Backend, Frontend) | REMOTE (Global) | Full-time | https://thothmind.ai

  What we're building:
  - Strategy simulation engine with real market data
  - AI-powered agents for strategy generation and analysis
  - High-performance data pipelines and analytics

  We're hiring:

  Backend Engineer:
  - Python or C++, API design (REST)
  - Database design (SQL/NoSQL), data processing at scale
  - Interest in financial systems/trading is a plus

  Frontend Engineer:
  - TypeScript, React, Next.js
  - LLM/AI integrations (OpenAI API, LangChain, or similar)
  - Performance-focused, clean UI architecture

  Why join:
  - Fully remote, anywhere in the world
  - Work on non-trivial problems—trading simulations, AI agents, real-time data
  - Small team, high ownership, real impact
  - Competitive compensation

  Apply: https://thothmind.ai/careers

Beacon AI | San Carlos, CA | Hybrid (On-Site) | Full-Time | www.beaconai.co

Beacon AI builds intelligent systems that make aviation safer and more autonomous. We’ve completed multiple DoD programs and are expanding our team with exceptional technical leaders to push the boundaries of human-machine collaboration in the cockpit. At Beacon, you will lead by example, mentoring and growing a small team of talented engineers (typically 1–2 to start) while staying hands-on in design and execution. You’ll help shape critical systems that advance aviation safety and autonomy, working alongside a team that values effort, creativity, and accountability.

We’re hiring Lead Engineers with 5-9 YOE who love solving complex problems. At Beacon, you’ll own your work end-to-end, from prototype to deployment, and literally see your code take flight in real world aviation environments! Roles:

++ Lead iOS Engineer [Tech Stack: Swift, SwiftUI, UIKit, Mapbox]

++ Lead Infra/Backend Engineer [Tech Stack: AWS]

++ Lead WebApp/FrontEnd Engineer [Tech Stack: Python, Typescript, React]

++ Lead Autonomy/Robotics Engineer [Tech Stack: C++, Python, iOT]

++ Lead Security Software Engineer [Skills: Ability to perform hands-on security engineering tasks, CMMC Compliance Knowledge]

Join us at beaconai.co/careers. Mention in the application that you saw our post on HN.

Blueberry Pediatrics | Full-stack Senior or Staff Engineer | REMOTE (US only)

American healthcare is seldom affordable, accessible, or high-quality. We are fixing this for pediatrics. Blueberry is the most affordable option amongst our competitors. We practice the highest quality pediatric telemedicine, as evidenced by our exclusive hiring of board-certified pediatricians and the usage of at-home medical kits. And, we’re accessible 24 hours a day.

Our success is shown in the lives we save, the costs we save our insurers, and our exploding B2B and D2C business.

As you can imagine, pulling off affordable high-quality healthcare is a challenge. It requires a lot of engineering ingenuity, a C-suite aligned with positive patient outcomes above short-term profits, and a great product team.

We use Django, Hotwire Turbo (an HTMX-like framework), Pytorch, Sklearn, and Flutter. Experience in these technologies helps, but what’s more important is general full-stack knowledge, curiosity, and a strong work ethic.

Full-stack engineer: https://jobs.ashbyhq.com/blueberrypediatrics/dc8108f3-34ed-4...

Our homepage: https://blueberrypediatrics.com/

Our engineering blog: https://engineering.blueberrypediatrics.blog/

Brave Software | C++ Engineer, Filterlist Engineer | REMOTE | Full-time

Brave is building a privacy-first browser and a more transparent Web for over 100M users.

On the privacy team, we are looking for:

- C++ Engineer: Working on privacy features in our Chromium-based core engine. Link: https://job-boards.greenhouse.io/brave/jobs/7339167

- Filterlist Engineer: Working on adblocking and JavaScript fixes for websites. Link: https://job-boards.greenhouse.io/brave/jobs/7434948

We are a remote-friendly company with a very-low-meeting culture.

Contact: shivan at brave dot com

SpruceID (YC W21) | REMOTE (US-Based Preferred) | Full-Time | spruceid.com

Spruce lets users control their data across the web. Instead of users logging into platforms, we believe platforms should request to access data vaults controlled by users.

The demand for trusted digital ID is accelerating as AI deepfakes begin to destroy most of the ways we use to verify identity today. How private or secure is it to hold your driver's license or passport up to a webcam to get a bank account? Was it ever private or secure? Stable diffusion can break so much of this already. Society will need trusted digital IDs and credentials. Our mission is to allow them to be controlled by individuals, with safeguards to prevent descents into surveillance states and checkpoint societies.

We are the main implementers of category-defining initiatives such as the digital ID program for the California DMV, and the verifiable digital credentials program in Utah. We are private sector participants in NIST's National Cyber Security of Excellence initiative for privacy-preserving digital ID.

We are hiring skilled engineers who care about making a real impact in improving public services, digital autonomy, and user privacy for the world. We work closely with public sector agencies, and have high regard for public servants. We have a strong engineering and customer-oriented culture, and are not simply a SaaS product or AI wrapper. Our roles are not for the faint of heart: you will be expected to work hard and learn a lot in this role.

Our engineers are ambitious to get outcomes for our customers and their constituents. On any given day, they may write great Rust/C#/TypeScript, deal with mainframe dumps, read policy documents, respond to technical RFIs/RFPs, manage on-prem environments, implement new NFC + Bluetooth protocols in Swift/Kotlin, create CI/CD processes that enforce W3C accessibility guidelines and i18n requirements, rewrite lost specs from disassembled binaries, figure out stablecoin payments, and design new protections for public key infrastructure. It is a team effort, and people with T-shirt shaped skills are able to collaborate and learn a ton from each other every day.

We are interested in candidates who want to be proud of the meaningful impact they make for society, even if it takes time to get right. This is not the right job for someone who wants to "join a cool new AI startup" that implodes or exits in under a year.

See our roles here: https://jobs.lever.co/sprucesystems/

RepSpark | Engineering & Product | REMOTE (US) | Full-Time | https://www.repspark.com

RepSpark is the top SaaS B2B wholesale e-commerce platform for brands in apparel, footwear, and accessories. For example, we're how golf courses across North America and Europe purchase brands like Titleist, Peter Millar, Kjus, etc.

Stack: C#/.NET (Rider on macOS), GraphQL, React, TypeScript, PostgreSQL, AWS (CDK).

We're actively hiring:

* Senior Product Engineer (Full-Stack): Own outcomes across React/TS + C#/.NET + Postgres; help modernize legacy .NET Framework to .NET 8; build/scale ERP ETL & integrations. https://www.repspark.com/senior-product-engineer-full-stack

* Product Manager - Integrations: Own the integrations roadmap; prioritize ERP connectors (NetSuite, SAP, etc.); partner closely with engineering. https://www.repspark.com/product-manager

Email careers@repspark.com with your resume and optionally GitHub/portfolio.

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.

Technical Program Manager: https://jobs.ashbyhq.com/category-labs/bdfe89a6-83f6-4ab3-b6...

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

Infrastructure Engineer, APAC: https://jobs.ashbyhq.com/category-labs/ea8cf4f7-0db7-43e9-af...

Senior SWE (Rust, C/C++): https://jobs.ashbyhq.com/category-labs/45f674b2-d904-482e-a5...

Senior Researcher, Systems: https://jobs.ashbyhq.com/category-labs/015934c5-66e5-4042-94...

Pickle Robot | Senior Perception Engineers & MLEs | Boston (Charlestown), MA | ONSITE / HYBRID | ROBOTICS

Pickle Robot is solving the long tail of physical automation. We deploy robots that autonomously unload trucks and trailers. The Perception team is expanding to tackle the chaotic reality of the loading dock.

I am hiring 5 Engineers across 4 technical tracks. I am also looking for short-term (~3-6 months) (computer vision) contractors based around Boston, MA.

See below for the opening on my team.

Senior Robotics Software Engineer: Architect a hybrid C++/Python stack to fuse multi-modal data (RGB-D, LiDAR) into a unified 3D world model https://jobs.lever.co/picklerobot/adb162fe-056b-4439-ad2e-e7...

Senior MLE (Eng): Build and deploy robust, high-performance computer vision models for the edge (NVIDIA Orin). https://jobs.lever.co/picklerobot/adf27300-1af5-4b9e-b471-e6...

Senior MLE (R&D): Tame the long tail of rare events and distill massive foundation models/VLMs into lightweight networks. https://jobs.lever.co/picklerobot/057c340d-4ec0-4f67-907b-8d...

MLE (Ops/Infra): Build data engines to support active learning and mine interesting events from our fleet data. https://jobs.lever.co/picklerobot/2dfc1a23-af48-4972-abe6-7d...

Contact: Email noe[at]picklerobot.com and mention "HN - Who is hiring?" in the subject. Please specify the role you are applying for and/or whether you are interested in contracting.

Note: We are also hiring across Engineering in Motion Planning, Task Planning, and Control. View all roles at: https://jobs.lever.co/picklerobot