Localstack | REMOTE | We are a fast-growing Series A startup building cutting-edge technology to revolutionize cloud development processes and support highly efficient dev&test feedback loops. We’ve closed our last $25mil round in Q4 2024, led by Notable Capital, CRV and Heavybit.

Please check our careers website: https://www.localstack.cloud/careers

In particular, I'd like to highlight the Database Internals position to work on our high-fidelity Snowflake emulator.

Senior Software Engineer - Database Internals https://apply.workable.com/localstack/j/5277aba239/

This could be a great opportunity to get into the space of data processing or continue working in this area.

Raylu.ai | Engineers (Backend/Frontend/Full-Stack), Senior Data Engineer, Senior AI Engineer, Senior Product Engineer | New York City | ONSITE | Full-time | $165k–$250k base + $100k–$200k equity | https://jobs.gem.com/raylu-ai

Raylu automates private-market investing workflows with LLMs. Beachhead: sourcing—mass-scale agentic search + AI-first workflow so funds go from lead → memo fast. Series A (Oct ’25), $12M raised; team of 7, fully in-office (Midtown Manhattan).

Stack: TypeScript/Node, React/Next.js, Redis, Temporal, Python, Dagster, DuckDB, modern cloud. Benefits: Health/dental/vision, 401k (3% automatic), paid lunches, wellness + Citi Bike. Apply: https://jobs.gem.com/raylu-ai

Senior Backend Software Engineer, Rive.app Remote U.K. Full time. We're on a mission to make hard-coded graphics a thing of the past with a new general-purpose graphics format for all types of software and Ul.

The backend team builds and operates the systems behind Rive’s cloud platform, focusing on the services and infrastructure that provide the core APIs, real-time collaboration, file storage, and background processing for the editor. We also own a few full-stack services that power the marketplace and customer-facing experiences, with the ability to rebuild big parts of the backend.

Requirements 8+ years of professional software engineering experience, specifically in backend and infrastructure. Proven track record of owning and delivering backend services for SaaS-based products that are widely relied upon by active users. Node.js experience, or strong experience in multiple programming languages and evidence of learning new ones quickly. Experience with cloud infrastructure (AWS preferred), infrastructure as code, and container orchestration. Strong SQL skills, including hands-on experience with query analysis and optimization. Ability to work independently in ambiguous situations: seek out requirements, make sound decisions, and prioritize effectively. Excellent communication skills, with willingness to work directly with customers when needed.

apply: https://apply.workable.com/rivecareers/j/e4c131b413/

Patrick J. McGovern Foundation | REMOTE (US) | Full Time

We're hiring an experienced Full Stack Developer to join our Products and Services function. This role is ideal for a developer with 3+ years of full-stack experience and strong proficiency in Python-based codebases.

If you're passionate about coding for impact and building and deploying AI-powered products that serve humanity, learn more and apply: https://jobs.lever.co/mcgovern/db2123a6-d682-43db-bbd7-f198e....

Know someone who’s a good fit? Referrals welcome at Email is hidden.

Agile Six | Remote (US) | https://agile6.com/ | Full-time

A6 is hiring an Enterprise Engineering Strategist! Pay's $207,132.

https://job-boards.greenhouse.io/agilesix/jobs/7518746003

Agile Six is a people-first, remote-work company that serves shoulder-to-shoulder with federal agencies to find innovative, human-centered solutions. We build better by putting people first. We are animated by our core values of Purpose, Wholeness, Trust, Self-Management and Inclusion. We deliver our solutions in autonomous teams of self-managed professionals (no managers here!) who genuinely care about each other and the work. We know that’s our company’s purpose – and that we can only achieve it by supporting a culture where people feel valued, self-managed, and love to come to work. *TL;DR*: We're a federal contractor.

As an Enterprise Engineering Strategist at Agile Six, you will leverage your deep expertise in software engineering, emerging technologies, and applied AI to strengthen and evolve engineering practices across the organization. This role combines hands-on project work with enterprise-level coaching, focusing on how AI-informed tools, patterns, and approaches are redefining what it means to design, build, and deliver software. You will help Agile Six navigate this transformation – guiding teams as engineering roles, workflows, and required skills evolve – and play a pivotal role in shaping the future of engineering and applied AI practice at Agile Six.

Feel free to drop me a line at Email is hidden if you'd like more information about what it's like working at A6 (it's pretty great). I can't exactly refer you if I don't know you and haven't worked with you, but I can make sure your résumé gets seen by fresh eyes.

Atomscale | On-site Boston, MA | Full time

We're looking for a talented Applied AI/ML Engineer to join our team in Boston, MA.

If you’re excited by the idea of applying machine learning to real-time materials processing and enabling atomic-scale precision in manufacturing, we’d love to talk. This role bridges AI, high-performance computing, and advanced materials science—helping shape the future of semiconductor and nanotech innovation.

Join us at the intersection of AI and materials, where your models directly impact how next-generation materials are discovered and produced.

Learn more and apply here: https://www.atomscale.ai/careers/applied-ai-ml-engineer

Hudson River Trading | Hybrid | Full-time We’re a quantitative trading firm based in NYC that trades hundreds of millions of shares each day across 200+ markets worldwide. Our developers and engineers build the high-performance systems that power automated trading globally.

We’re hiring for: Experienced Software Engineer – Systems Development » Seattle, Boulder, LND, Dublin, NYC

You’ll build and improve the Python-based platform used across our Systems teams to provision, monitor, and manage our global infrastructure. We’re looking for strong Python developers who enjoy working close to the operating system and automating large-scale environments. Solid Linux/Unix experience required.

Apply here: https://www.hudsonrivertrading.com/careers/?search=systems+d...

At IP Fabric, we’re redefining how enterprises see their networks. Our platform uncovers the truth hidden inside complex infrastructures — automatically discovering and modeling massive network graphs in real time.

We’re now looking for a Senior Backend Developer to help us shape the future of our Network Automation Engine — the brain behind our Discovery Service.

You’ll build a distributed service responsible for scanning large-scale computer networks (hundreds of thousands of devices), collecting configuration and topology data, and building an accurate network graph. The service is being redesigned for parallel exploration to significantly improve performance, scalability, and data freshness, while ensuring correctness and avoiding duplicate discovery paths

We’re heavy on Node.js/TypeScript, exploring Go, and thrive on clean, scalable, and resilient design.

If you love distributed systems, own your code end-to-end, and want to join a team of engineers who build the tools they once wished they had — we’d love to talk.

Prague or Remote (EU) Learn more & apply: https://ipfabric.io/jobs-listing/?gh_jid=4651659101

tulanā | Berlin / remote | Senior Software Engineer | https://tulana.notion.site/senior-software-engineer-m-f-d-2a...

We are a bootstrapped, profitable startup leveraging stochastic optimization, simulation, and machine learning to optimize decisions at scale. What we love: Scala and Nix, principled and reliable solutions and suckless systems.

Feel free to get in touch directly with the CTO: https://www.linkedin.com/in/maxbarkhausen/ | Email is hidden

Rivian Automotive | Staff ML Engineer Perception | Full - Time | Hybrid | London | - https://careers.rivian.com/careers-home/jobs/24822?lang=en-u...

The ultimate goal of Rivian's new AI Hub in London is to accelerate the development of our Autonomy Platform to achieve higher levels of autonomous capability, making our vehicles safer, more technologically advanced, and "time-restoring" for our the users.

About us in general: We’re a US-based EV company building groundbreaking electric trucks, SUVs, and commercial vehicles — and an integrated ecosystem of hardware, software, and services in order to keep the world adventurous forever.

Also, other roles that we have opened for the London office can be seen here:

https://careers.rivian.com/careers-home/jobs?sortby=relevanc...