Wirespeed | Founding Engineer | REMOTE (US) | Full-time | https://wirespeed.co

We are looking for a founding engineer to help us continue our mission of building a fully-automated Managed Detection & Response (MDR) platform.

Our ideal engineer has a broad set of experience across frontend, backend, infrastructure, cybersecurity, and data(bases). If you've been responsible for managing production infrastructure, talking to customers, and having full ownership of your features from start to finish, we'd love to talk with you.

Tech stack:

  - Typescript
  - Frontend: ReactJS/Tanstack
  - Backend: BunJS/NestJS
  - Postgres
  - Clickhouse
  - NATS
  - Redis
  - AWS
  - Anything fun, secure, and scalable

We don't care about your resume, tell us why you're awesome: https://wspd.link/founding-engineer

Loman AI | Founding Engineer | Austin, TX | Hybrid | Full-Time | $175k - 225k + equity | https://loman.ai

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We are building the best-in-class phone AI for restaurants, enabling autonomous agents to handle orders, reservations, and customer inquiries. As a founding engineer, you’ll shape our core product while working directly with cutting-edge LLMs, developing third-party integrations, and designing scalable APIs.

Unfortunately, we cannot offer visa sponsorship.

Stack: nodejs, typescript, postgres, fastify, docker, redis, react

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Apply at jansen@loman.ai

Stream | Multiple Positions | Amsterdam (NL), Skopje (North Macedonia) | Boulder, CO (US) | Toronto (Canada)) | Remote possible | Full Time | Visa Sponsorship

We are consistently hiring backend engineers ranging from Senior level to Staff / Lead / Director / Principal Go engineers. If you have experience with a different tech stack, we offer a 10-week onboarding program to train you in Go, scaling and other key topics: https://tinyurl.com/2u5x9f9w

We’re also hiring for:

* Staff Python Engineer – (Open Source Video/Voice AI Library)

* Staff Product Designer

* Lead Backend Engineer

* Unreal Engine C++ Developer (fixed term, 2-3 months project)

At Stream, we use Go for our video SFU, chat API, Moderation and Feeds, serving high traffic from major apps like Strava, Nextdoor, Patreon, and Midjourney. Our tech stack: Go, CockroachDB, RocksDB, WebRTC, Raft, and Redis.

Why Join Stream?

* High scale/ difficult engineering, we have customers using our products with millions of users

* Default alive. Startup growth opportunity with healthy revenue

* All managers are hands-on and capable engineers

* Edge network of servers around the world

* Great opportunity to learn and grow

Remote: our roles are primarily NL, US, North Macedonia, or CA-based (hybrid), but exemptions for remote work within the EU may apply to specific cases. Visa Sponsorship: Available for the Netherlands

Apply here: https://jobs.ashbyhq.com/stream?utm_source=5rrpvObp3r

ASBL | Full-Stack Engineers (All Levels) | Hyderabad, India | ONSITE | 12-80L INR

We're a fast-growing proptech company in India, using technology to solve deeply complex problems in the construction and real estate space. Our mission is to build high-quality homes and deliver them on time—a massive challenge in this industry. Your code directly impacts everything from our supply chain and project management to the final home-buying experience for families.

We're looking for product-minded engineers who want to own problems end-to-end in a high-impact environment. We use cursor and are AI first.

Stack: React/Next.js + TypeScript, Node.js/FastAPI/Go, Postgres, Redis, Docker, GitHub Actions, AWS/GCP, OpenTelemetry.

Culture: AI-native (everyone uses Cursor/Copilot), small teams, high ownership, fast iteration.

Learn more and apply at: asbl.in/careers/software-engineering. Please mention you saw us on Hacker News.

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:

- Research Team Lead [hands-on role] (leading world-class ML engineers to success - focus, context translation, project management, measurement, ...)

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

- DevOps Engineer (IaaC in AWS)

- DevSecOps Engineer (blue team - designing, implementing secure infrastructure)

- Engineering Team Lead [hands-on role] (structure, organize, help, elevate) - lead of team dealing with backend - low tail latencies, distributed systems, petascale

- Product Manager (self driven, tech-enabled go-getter - expert on fraud and/or scaling a startup from product perspective)

We are also looking for other key roles:

- CRO - be responsible for growth in US & EU

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

Trigger.dev (YC W23) | Senior Backend Engineer | Hybrid UK or Remote (EET to PST) | Full-time

We are an open source developer platform for building and running managed workflows and AI agents, serving thousands of teams and handling hundreds of millions of executions per month.

The role: Build SDK/platform features, backend systems, optimize database performance, create scalable APIs, implement monitoring solutions, customer support and more.

Our stack: Node.js, TypeScript, Postgres, Redis, Remix, AWS

Learn more and apply here: https://trigger.dev/careers/senior-backend-engineer

SEEKING WORK | Central Europe | REMOTE Ex product manager & business developer for a web&mobile development agency, connected with a wide network of freelancers, decided to start own company. Expert in finding part or full-time mid/senior developers & designers for growing teams. Can also help you as part time PM. Currently working with three US clients. Tech stack:

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  Frontend: HTML5, CSS3 (SASS), JavaScript (Vue.js, Node.js, Nuxt.js, React.js, TypeScript, AngularJS, jQuery)
  Backend: PHP, Java, Python (Django), C++, C#, Ruby, .NET, Go (Golang)
  Mobile: React Native, Swift, Kotlin, Xamarin, Flutter
  Databases: MySQL, NoSQL, PostgreSQL, MongoDB, Redis, Microsoft SQL Server
  Cloud: AWS, Azure, Oracle, Google
  UX/UI: Figma, Sketch, Adobe XD, Photoshop, Illustrator
  -----------------------------------------------------------

Let me know what your needs are and I'll get back to you ASAP. Email: Matthew.ScottJR887@gmail.com

Founding Engineer (Warsaw, full-time, in-office) Elastics is building an AI-native operating system for trading - deterministic agents, live data, portfolio management and execution across prediction markets, crypto, and beyond. We are Pre-Seed funded, working with our first clients, and need a Founding Engineer to accelerate building core product infrastructure. Responsibilities: Build and own our agent orchestration & runtime engine (async, distributed systems) Deploy and scale services on Azure (Docker, CI/CD, monitoring) Connect to exchanges and data sources (API/websocket integration, streaming) Implement portfolio and risk calculations (PnL, positions, Greeks, risk metrics) Implement market discovery dashboards on our platform Requirements: 5+ years of backend experience (Python, distributed systems, financial data pipelines) Comfort with Docker, Redis/Kafka, PostgreSQL Strong C++ experience Interest in financial markets and trading Startup mindset: you can ship, own, and iterate fast Warsaw-based (in-office) or willing to relocate Fluency in English - our work and clients are international Bachelor's or Master's degree in Computer Science, Mathematics, or a related field Offer: $5,000/month starting salary (B2B) + meaningful equity (true founding role) Work at the forefront of financial and AI innovation Work directly with experienced math, quant and product founders Exposure to top global hedge funds, exchanges and VCs

Send your resume to contact@elastics.ai with HN who’s hiring in the title

ReadWorks (YC-backed nonprofit - Imagine K12 F'14) | Senior Data Engineer | REMOTE (US Only) | Contract (up to 20hrs/week) | $70-110/hr

Building data infrastructure to support 11M+ students and teachers learning to read.

We're a nonprofit education platform providing free, research-based literacy resources to K-12 classrooms nationwide, with deep focus on under-resourced communities.

The role: Design and maintain ETL pipelines, ensure data quality across our warehouse and reporting stack, build data infrastructure that powers educational insights for millions.

Stack: SQL, Redshift, AWS (S3, DynamoDB, EC2, Firehose), Python, Linux. Bonus: Django, Elasticsearch, Kibana, Redis, Ruby, Node.js

We value: Mandatory testing, maintainable code, operational consistency (CI/CD, infrastructure as code, rigorous monitoring)

Impact: Your work directly supports teachers and students in under-resourced communities. 20+ years of proven results in engaging students and strengthening literacy instruction.

Apply: Email your details (CV/Resume, Cover Letter, or any other info we should know about you) to engineering at readworks.org

Full posting here: https://about.readworks.org/careers.html

InnoVint | Wine Production Software | Remote (US-based) | FT | Senior BE Developer (Django/Python) We're looking for another great back end developer to join our team. We are a company of 30 large and have been operating for over 10 years. We are not VC backed and operate as an independent company with startup mentality.

- You’ve built and scaled multiple APIs in production. - You’ve deployed eventual consistency in production and know how to make it work for real users. - You have experience mapping event-sourced backends to domain-rich applications - You’ve profiled performance bottlenecks from the HTTP request to the database - You’re fluent in relational databases (we use Postgres) and comfortable with non-relational stores (perhaps Redis). - You’ve written gnarly database queries and have a penchant for building fast, efficient systems - You’re comfortable in Python/Django and modern cloud environments (GCP/AWS/Azure). - You thrive in small, distributed teams where ownership and initiative are key.

https://www.innovint.us/careers/sr-backend-engineer/

ToucanTix | Senior Ruby on Rails Developer | REMOTE (EU/US timezones preferred)

Your code will run the gates at zoos and theme parks across Germany and the USA. When families scan tickets, when capacity limits kick in based on visitors and available resources (staff, equipment, facilities), when dynamic pricing adjusts for weather - that's our Rails app making real-time decisions for thousands of visitors daily.

We're 5 engineers at ToucanTix (sister company Combase has 80+). You'd have serious ownership and architectural influence from day one.

Technical challenges that actually matter:

Multi-tenant architecture supporting 100+ venues with wildly different business logic. Offline-first POS that syncs flawlessly. Complex pricing rules (weather + season + capacity + customer type) that need to stay performant. Hardware integrations with access control and payment systems.

Stack: Rails 7+ API with GraphQL (graphql-ruby), PostgreSQL doing serious heavy lifting with multi-tenant architecture, Redis for speed-critical stuff, SvelteKit frontend (if you're full-stack curious), Google Cloud infrastructure (Cloudtasker, Cloud Storage), RSpec/Capybara keeping everything bulletproof

You: 5+ years Rails. Strong at PostgreSQL optimization. Have architected systems for performance and scale. Comfortable owning technical decisions.

Us: Real ownership. No layers of management. Async-first remote culture. Profitable company, not burning VC cash. Your work has physical impact - people literally can't enter the attraction if your code breaks.

Full details: https://www.toucantix.com/careers/senior-ruby-on-rails-devel...

Apply: jobs@toucantix.com - Send CV + one technical challenge you're proud of solving. Put in subject line.

Zencastr | Senior Backend, Fullstack, ML Engineers, Data Analyst | REMOTE (Americas, UTC-1 to UTC+1) | Full-time

We're building the podcast recording platform that makes pro-quality audio accessible to everyone. Fully distributed team, scaling fast.

Looking for senior engineers who care about performance and ownership: - Backend: Node.js/TypeScript, Redis, MongoDB, APIs at scale - Fullstack: React + backend chops - ML: Production ML systems, speech/audio, MLOps - Data Analyst: SQL, BI tools, product analytics (3+ years)

Use LLMs for homework (we encourage it). Ship fast, own outcomes, work from anywhere. Small team, real impact, profitable company.

Apply: https://jobs.ashbyhq.com/zencastr (mention HN)

Channable | Utrecht, Netherlands | ONSITE

Channable is a fast-growing B2B SaaS platform that offers a fully integrated way to market your products online. We empower marketers and online businesses to manage, scale, and optimize their marketing.

We're looking for Python Software Engineers in multiple teams. More details about our jobs here: https://jobs.channable.com/?jobs-035754a9%5Btab%5D=Engineeri...

Our stack includes: Python, Haskell, Rust, PostgreSQL, Redis, Nix, Terraform, Nomad, Ansible

Do you want to read more about our engineering culture? Then have a look at our popular tech blog: https://tech.channable.com

Additionally, you can also take a look at some of our open-source work at https://github.com/channable to get a feeling of how we work together and what our code looks like.

Doist | Backend Engineer, Apple Engineer | REMOTE | Full-time | https://doist.com/careers

We create simple yet powerful productivity tools like Todoist, used by millions worldwide.

Backend Engineer: Work on the backend that powers Todoist at scale (millions of users, billions of tasks). Current challenges: re-sharding, a new sync engine, and making our systems ready for the next decade. Our stack: Python, SQLAlchemy, MySQL, Redis, AWS, and an in-house Flask-like framework. We’re looking for strong Python skills, experience with at least one other language, and curiosity about using AI competently to improve both developer workflows and product features.

Apple Engineer: Opening this week. Please check our careers page.

Fully remote across 30+ countries. 40 days PTO, coworking budget, hardware budget, AI tools, work & wellness budget, parental leave.