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:

* Director of Engineering

* Lead Backend Engineer (Real-Time Video Infrastructure)

* Lead Backend Engineer (Go)

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

Engineering Square | Telecom Solution Engineer | New York, NY | HYBRID | Contract 12+ Months

Senior Telecom Solution Engineer / Solutions Architect to lead a Channel Bank and legacy telecom retirement initiative at a regulated utility.

You'll evaluate legacy TDM-based systems (Channel Bank, POTS, 56K, T1), map service dependencies, and design phased migrations to modern Ethernet, MPLS, fiber, and wireless solutions.

Key work: service inventory & dependency analysis, migration planning, carrier engagement (ordering, provisioning, turn-ups, disconnects), cutover leadership, risk management, and formal decommissioning to realize cost savings.

Must have deep hands-on telecom experience: TDM/POTS/T1 retirement, Ethernet/MPLS/fiber migrations, carrier coordination, change management in utility/regulated environments.

Hybrid in NYC (2-3 days onsite/week). Candidates must be local to New York.

Interview: Video + in-person.

Apply: saikumar@engineeringsquare.us (subject: "Telecom Solution Engineer -- [Your Name]")

Howie | AI for Architecture & Engineering | Hiring Backend | Vienna / Remote (Europe) • Senior Backend Engineer (Architecture & AI Systems) | Vienna / Remote (Europe) | Full-time | Salary + equity

Early-stage startup building an AI platform that helps architecture and engineering teams reuse knowledge from past projects (documents, drawings, revisions) to reduce costly rework in planning and pre-construction.

You’ll work on multi-tenant backend systems powering hybrid search, document ingestion pipelines, and large-scale indexing across complex engineering datasets.

Stack / areas: PostgreSQL, Elasticsearch/OpenSearch, vector search, distributed systems, async pipelines.

Looking for: 8+ years backend engineering experience, strong systems design skills, experience with distributed systems and production B2B SaaS.

Small team (currently <10 engineers), high ownership, real production users.

Backed by Pi Labs and DAR.

Full JD: https://howie.systems/careers Contact: contact@howie.systems

We're building AI that predicts whether a wounded soldier survives — before they reach a hospital.

LIFEGUARD Technologies is hiring an ML Research Engineer to build a multimodal CNN-LSTM wound trajectory engine from scratch, on unique real-world conflict wound data — video and clinical time-series — that exists nowhere else.

This is a government-funded programme with a clear 28-month roadmap, taking the system from proof-of-concept to a field-demonstrated prototype operating offline on hardware. You will own the technical core end to end — multimodal architecture design, XAI integration, edge deployment, federated learning across geographically separated data nodes, and regulatory documentation to UK standards.

The work is hard. The scope is real. The data is irreplaceable. You may see the front line.

For the right engineer, there is also a broader opportunity across a portfolio of health and med-tech ventures — building AI that saves lives across oncology, defence medicine, and emergency care.

What we're looking for: proven CNN and LSTM / Transformer experience on clinical or scientific time-series; multimodal fusion experience (image + structured data) a strong advantage; hands-on PyTorch, ONNX Runtime, and XAI (SHAP/LIME/Captum); ability to work directly with clinicians. PhD or MSc preferred. UK SC clearance eligibility preferred but not a requirement.|

£70,000 – £85,000 base. 0.5%–1.0% EMI equity. Remote/hybrid UK.

Email cbdo@rasalingham.com with your CV and two or three sentences on your most relevant multimodal or temporal modelling work.

Colonist | Full-Stack Product Dev | Remote (Eastern Europe / SEA) | Full-time

Colonist.io (https://colonist.io/) is a multiplayer web strategy game with millions of players, think Catan, but free and online. We're a small team and you'd own features end-to-end, from backend game logic to polished UI.

You'd work on evolving our game architecture, ensuring cleaner code boundaries and better scalability.

Stack: TypeScript, Node.js, React, CSS, PostgreSQL/SQL. We lean heavily on AI tooling for development speed.

More details and apply: https://jobs.ashbyhq.com/colonist/109d62c4-52f3-4980-9c49-d3...

Common Prefix – Software Engineers / Auditors / Support Engineers – Greece – Remote – Full-Time

Common Prefix is a science-first blockchain consulting company. Our vision is to make blockchains usable for mainstream users and everyday people – paying at the supermarket, remittances, moving money across borders, saving, investing – and solving the real problems of usability, scalability, and interoperability that come with it.

We're a 30-person team, half scientists (cryptographer PhDs, post-docs, and professors) from renowned universities, half engineers with long web2 experience. A lot of our field is broken and we're trying to make a small contribution in fixing it, by introducing provable security and proper engineering practices across the board.

What we're looking for: Software engineers who can solve problems, are smart, get things done, and enjoy working on the bleeding edge, learning about cryptography, and working from first-principles. Auditors who can write and read code, especially low-level cryptographic implementation code (zero knowledge verifiers, signature schemes, etc), consensus (PoW, PoS), or smart contracts (everything DeFi). Support engineers (junior to early-mid) who enjoy being on the front line of production support (monitor live systems, respond to partner/user issues, triage/debug, and escalate).

Tech stack: Doesn't matter, we'll teach you. But we work mostly with Rust.

Open roles:

* Software Engineer, https://commonprefix.notion.site/sw-folk

* Auditor, https://commonprefix.notion.site/auditing-folk

* Support Engineer, https://commonprefix.notion.site/support-folk

We offer:

* $80,000–$160,000 / year cash

* Local from Athens, Greece, or remote, preferably in Europe

* Conference participation in exciting scientific and engineering venues, 2-3 times per year

* The opportunity to work and learn from world-class scientists from major universities in the field of blockchains, cryptography, and consensus

Spotlytt | https://spotlytt.com | Remote or Mumbai | Full-Time

Spotlytt is a skill discovery platform for professionals to showcase their skills through videos and audios. Let people see what you really can do. Build your visibility beyond resumes and job applications

Looking to partner:

* Co-Founder/CTO | Remote or Mumbai | Equity or ESOPs

Email: contactspotlytt@gmail.com

Feel free to share any feedback or profile, if you are interested.

Tracebit | https://tracebit.com | London/New York| Full-Time

Tracebit is an Accel backed, UK founded security product company taking a new look at canaries for intrusion detection.

We work with some amazing companies (Docker, Riot Games, Synthesia, Zepz...) to help detect threats in cloud and enterprise.

We're hiring:

* Founding Engineer | London | £60-120k + generous equity | Relocation & Visa sponsorship available

* Founding Account Executive | New York | $180-200k OTE + generous equity

* Founding Customer Success Engineer | London | £100-120k OTE + generous equity

Learn more and apply: https://tracebit.com/careers#section_open-positions

9 Mothers Defense | Robotics / Audio Engineers | Austin TX | Full-time | ONSITE

We're building AI-driven turrets that stop hostile drones - where robotics needs F1-level speed.

We're looking for smart, T-shaped teammates: people who are experts in one area but happy to jump in wherever needed. Our software team is small, so every member makes a real impact.

If you want to write motor control in Rust, optimize camera processing with custom CUDA kernels on Jetson, or rework a transformer-based tracker to handle small objects - you can do that here, and much more.

US persons only

https://jobs.ashbyhq.com/9-mothers

Wave | Applied AI Scientist | https://wave.com | Remote (US/UK/Canada/Spain) | Full Time

Wave (YC W12) is making Africa the first cashless continent by building affordable, instant financial services for millions of users. We’re the largest financial institution in Senegal and Côte d’Ivoire and are growing rapidly across 9 countries.

We are looking for an Applied AI Scientist with 5+ years of experience and deep expertise in building, evaluating, and optimizing autonomous agents. You'll work on autonomous voice and digital agents powering 10M+ interactions monthly and will own features end to end, tackling hard edge cases like low-resource languages, low literacy, and poor connectivity.

Salary up to $227,900 + equity. Benefits include 6 months parental leave, $10k charity match.

Apply here: https://www.wave.com/en/careers/job/5779974004/

Hyperact | Rust Engineer | Remote, UK | 3m Contract | Outside IR35

We are a product transformation consultancy looking for a Rust contractor to support one of our clients with a short term project.

Rust, AWS, Serverless, DynamoDB, Web/API development.

UK based contractors, outside IR35 only please, must have right to work in the UK, however this is a fully remote role.

Fire your CV and interview availability to jacob[dot]clark[at]hyperact[dot]co[dot]uk

About us: https://www.hyperact.co.uk/

TrueSpace | Full-Stack Engineer | Denver, CO | Hybrid / Remote

TrueSpace helps make second-stage businesses better. We're building TrueScore, a metric to assess a company's ability to scale, and Trudy, an agent to help CEOs improve that metric.

You'd join a small team of experienced founders and operators and help build features like onboarding, Stripe billing, org admin, and our agent. We're a small tech team, so you'd also help with CI/CD, lightweight DevOps, and AWS infrastructure.

Our current tech stack is simple and open to change: Laravel/PHP backend, alpinejs, mysql, and Bedrock on AWS.

You'll be successful in this role if you're a solid engineer and web developer, can read and write sql, and have some experience with tools and libraries like the ones we use--you needn't know exactly our stack.

Denver-based preferred. Competitive salary. Medical/dental/vision benefits, 401K match up to 4%. Sorry, no Visa sponsorship at this time.

For more about the job see https://truespace.com/careers/full-stack-developer/?njs and if that interests you, read more about TrueSpace and the team at https://truespace.com/ and please email us at careers@truespace.com with a resume and anything else that helps you show off what you can build.

Prophet Town LLC | Various Software Engineering Roles | US – Remote and Hybrid | English fluency required | Full-time | $150K-$260K annual total comp (multiple)

I’m the founder, trying to do “enlightened business.” We are a people-first, fully-remote (but some clients offer onsite…), boutique indie tech agency – building a team of talented, high integrity, and community-minded individuals, first, then building businesses around them, second. Our leadership staff are ex-Fortune 100; everybody touches code. Notable recent projects: internal tools for Anduril, and voltagepark.com.

We’re currently especially seeking:

Full-Stack Software Engineers (Typescript/Javascript, React, NextJS, Ruby on Rails; Python; Devops, and third-party API integrations)

(Check back soon; more roles for at least QA Engineers, ML/AI, and DevOps posting later in March.)

Please apply using this Google Form: https://forms.gle/Bv5zVjQDjgaLWqSp7. Applicants who submit before March 15 will typically receive a reply by March 22. Tier3 roles are typically 5-10 y/o/e with $150-$180k annual total comp. Tier4 roles are 11-20 y/o/e, $215-$260k annual total comp. Higher tiers exist, and we welcome exceptional applications.

Hi all. I'll maybe try to see if I can get this added to the list of search tools above but here is a tool that allows you to search (text and semantic / tags) as well as chat. Some people found this useful in previous months so posting again.

Basic search: https://nthesis.ai/public/hn-who-is-hiring

Chat: Click the "Chat" button or use the following link (https://nthesis.ai/public/b28f0eb9-f5ac-4152-9a4c-152253d698...)

Freeform (http://freeform.co ) | Software Engineers | Full-time | Onsite | Hawthorne, CA (Los Angeles County)

Freeform is deploying metal 3D printing factories at global scale and setting a new frontier in manufacturing. With AI, GPUs, and FPGAs working in tandem, our system monitors and corrects every microsecond of the process, delivering a level of precision, speed, and quality that’s never been possible—until now. This isn’t just an improvement; it’s a leap forward in how complex metal parts are made, with the ability to revolutionize industries like aerospace, defense, automotive, energy, and beyond. We are backed by top VCs including NVIDIA’s NVentures, Founders Fund, and Threshold Ventures.

It’s a small, tight-knit team and you’d have the opportunity to own significant and impactful greenfield projects throughout the entire development lifecycle and much more. Our software team comes from the likes of Google, SpaceX, and Apple, and believe in taking a first principles approach to solving hard problems.

A glimpse into our software landscape - https://youtu.be/nFWQArUkd5I?si=mP17qdKbxvf8qpZN

Our feature in TechCrunch! https://techcrunch.com/2024/10/22/ex-spacex-engineers-land-1...

+ Principal Software Engineer - https://grnh.se/h4zevhq03us

+ Senior Software Engineer - https://grnh.se/n3heu99j3us

+ Senior Software Engineer, Factory Software C++ (Skyfall) - https://grnh.se/d5v28wv03us

+ Senior Software Engineer (Embedded) - https://grnh.se/hisej1hn3us

+ Senior Software Engineer (Edge Data & Telemetry) - https://grnh.se/7cqjij2q3us

+ Software Engineer (Edge Data & Telemetry) - https://grnh.se/7dw71wph3us

Substantial | Senior/Staff Software Developer | REMOTE (US) | Contract (potential for full-time)

Substantial is a technology consulting company. I'm looking to add someone to my team working with a long-time client on legal technology. We're a serious, collaborative team working in what we refer to as a Lean/post-agile way. We're looking for someone with 10+ years of experience, ideally in both the front end and the back end.

Technology: Ruby, Rails, Event Sourcing, JavaScript, Stimulus/Turbo Practices: Collaborative development (pairing, mobbing), TDD, end-to-end ownership, UI/UX design, user interviewing, etc.

If you'd like to learn more about how we work, I have several articles on the subject: https://github.com/aaronjensen/software-development/

Reach out to me directly if you are interested: aaron [at] substantial.com

Mobasi | Founding Engineer | Austin, TX / Remote | $240k + Profit Sharing | https://mobasi.ai

Mobasi builds autonomous AI agents for digital forensics. Our software orchestrates 150+ forensic tools to help law enforcement turn days of manual evidence analysis into minutes, aiding in cases involving child exploitation, trafficking, and homicide. We are bootstrapped, profitable, and shipping fast.

We are looking for our first hire outside the three co-founders to own infrastructure, DevOps, and compliance. You will transition our build pipeline from manual updates to an automated delivery system scaling to thousands of agencies. You will manage infrastructure across AWS, GCP, Azure, and AI providers, while owning CJIS and SOC2 compliance.

Tech Stack: Rust, TypeScript, Python, Tauri, Next.js, Docker, Pulumi, Terraform.

We work as a small SWAT team. We are AI-native and expect you to use tools like Cursor and Claude to ship significantly faster. We do not have sprints or daily standups. Instead of lottery-ticket equity, we offer a high base salary and direct profit sharing.

Apply here: https://jobs.ashbyhq.com/mobasi/b385d2bb-d338-44cc-8728-f0eb...

Beatdapp | Data Platform Engineer | Vancouver, Canada | ONSITE (Hybrid) | Full-time

Beatdapp is a ~50-person venture-backed startup that helps music streaming platforms detect and eliminate fraud. We process data at TB/PB scale to protect the royalty ecosystem and power clean, authentic recommendations.

We're looking for a Data Platform Engineer to help build and own our ML recommendation systems. This includes K8s cluster management, data pipelines and processing systems, and live inference APIs. You'll have the opportunity to work on our organization ML platform and shared engineering systems as well. It's a tight-knit team where people typically work on multiple projects based on interest and opportunity.

Stack: GCP (BigQuery, GCS, Pub/Sub), GKE, Airflow, Python, Redis, Bigtable.

The team is collaborative, and low-ego. Lots of people interested in tabletop games and video games.

Full posting: https://beatdapp.breezy.hr/p/c031b5e1efd1-data-platform-engi...

Or reach me directly: kevin [at] beatdapp.com

SwingVision is the AI tennis & pickleball app that provides automated stats, highlights, and line calling using just your phone. Our mission is to democratize the pro sports experience for all athletes.

- Head of Marketing (Berkeley, California): https://app.deel.com/job-boards/swingvision/job-details/f248....

- Senior iOS Engineer (Berkeley or Irvine, California): https://app.deel.com/job-boards/swingvision/job-details/cf4e....

- Data Labeling Intern (Berkeley, California): https://app.deel.com/job-boards/swingvision/job-details/a9a7....

ML6 | Machine Learning Engineer, Data Engineer | Python, TensorFlow, PyTorch, GCP, AWS, Azure | Full-time | Amsterdam, Berlin, Munich, Eindhoven, Ghent (EU) On-site/hybrid

We are a Machine Learning consulting company that builds end-to-end Machine Learning solutions. By applying the latest AI research, we keep our clients at the forefront of innovation. If you are interested check out: https://www.ml6.eu/knowledge-hub/blog and https://www.ml6.eu/customers/cases

Work on innovative projects for the biggest clients across Europe such as Randstad, ASML, FUNKE, and many more! Whether it’s about leveraging LLMs to improve customer support, building data lakes on cloud platforms to improve storage or implementing models using sensor data for quality control. You can find it all at ML6. You will mostly work with Python and a range of ML frameworks such as TensorFlow, PyTorch, or HuggingFace Transformers to solve hard Machine Learning tasks and help bring these application into production by building data pipelines and cloud infrastructure on all of the major cloud providers (GCP, AWS, Azure).

Open roles include:

• Senior/medior AI Engineer

• Senior AI Project Manager

• Chief Product Owner

and many more!

Apply now at the https://jobs.ml6.eu/