Unto Labs | San Francisco, CA | ONSITE (Hybrid OK), REMOTE (US) | Full-Time Unto Labs is developing the Thru Layer-1 blockchain (https://thru.org)

We recently announced $14.4 million in funding to make blockchains & digital assets useful for the world. Founded by Jump Crypto alumni and core contributors to the Solana protocol and the Firedancer client (https://github.com/firedancer-io/firedancer), we’re tackling fundamental scalability, performance, and usability challenges in distributed ledgers.

Our runtime conforms to the RISC-V specification—moving away from domain-specific VMs, DSLs, and bespoke compiler toolchains that limit developer and institutional adoption. You can write smart contracts and programs in any LLVM compatible programming language and reason about a standard ISA in RISC-V. Components are developed in C for maximal control over performance and resource usage.

We believe there is a unique window of opportunity to developer fairer, more accessible, and more global financial products on resilient public blockchains.

You can check out our docs and open-source developer tooling at docs.thru.org and https://github.com/unto-labs/thru/

We are hiring for the following role(s):

- Systems Engineer: https://jobs.ashbyhq.com/unto-labs/13df6bea-b253-4c80-ae05-5...

iGent AI | London, UK (Hybrid, 3 days/week) | Multiple Roles | Full-time | https://igent.ai

We're building coding agent systems for large-scale industrial projects, and an agentic cloud.

Why join:

- Small, senior team: ex-DeepMind, OpenAI, Microsoft Research, Amazon, and Cambridge University, multiple PhDs

- Hard problems across distributed systems, OS/sandboxing, ML and LLM inference/post‑training. Real users; ship to prod.

- Big Tech salary + options.

Open roles (all Senior/Staff; hands-on):

- Full-Stack - design and build new coding agent experiences, working with a top designer

- Agent Infrastructure - branching sandboxes, filesystems, orchestration, observability

- Backend / Eng Lead - build cloud from first principles; distribution, sync, load-balancing, events

- LLM inference & post-training - long context tech, RLVR, vLLM, performance

- Devrel & GTM – live-developing, tutorials, OSS/community, hackathons - drive adoption

You might be a fit if:

- 5+ years building and operating production systems (or exceptional evidence).

- Own 0→1 projects; comfortable reading & generating lots of code.

- Public work (OSS/papers/blogs/products) or strong portfolio.

Do apply! https://www.igent.ai/join-us

MaFi Games | Senior SWE/Game dev | Contract preferred | Remote | C#

Hi, I’m the co-founder of MaFi Games – an indie studio behind the game Captain of Industry. We are a small but passionate team who gave up their jobs at Google and Nvidia to pursue building the best factory simulation game possible, and we need more hands!

We are looking for an experienced software engineer to grow the team and accelerate our progress. We strongly prefer candidates with a background in game development, experience with 3D graphics, and performance optimizations.

Some reasons you’d enjoy working with us:

* A multicultural, collaborative, and innovative work environment where your voice is heard.

* Fully remote job with flexible working hours and vacation schedule.

* Long-term full-time collaboration (not a fixed-term contract).

* High quality C# code base, code reviews, tests.

* High work satisfaction, work on a popular video game with a wonderful community.

* No bureaucracy, 1 regular meeting per week.

As an example of our technical work see https://www.captain-of-industry.com/post/cd-31. We also have a unique signal-free train system: https://www.captain-of-industry.com/post/cd-46

If interested, please see the detailed info,requirements, and application instructions at https://www.captain-of-industry.com/jobs, thanks!

Note: We are also looking for a 2D game UI/UX designer and a SFX artist.

Onefish AI | AI Fullstack Engineer | San Diego, CA (On-Site/Hybrid) | Full-Time | Starting $80K + Competitive Equity (Path to $300K)

Onefish AI is building a revolutionary offline-first Progressive Web App (PWA) to deliver AI consulting to small and medium-sized enterprises (SMEs). We are disrupting the AI consulting market by providing robust, game-like AI tools that are 100% functional offline, boosting efficiency and cutting waste for real-world businesses. Our unique hybrid architecture combines browser-based Python execution (Pyodide) with intelligent cloud routing to empower businesses where connectivity is a challenge. We are looking for a Founding AI Fullstack Engineer to own and build this core hybrid architecture from the ground up. This is a rare blend of: Cutting-edge R&D (multi-agent AI systems, browser ML) Advanced Engineering (offline PWAs, Pyodide, Go/FastAPI routing) Direct Business Impact (building solutions that solve immediate SME problems) The ideal candidate will be an expert in Python (specifically for single-source browser + cloud runtimes) and have deep experience with Svelte, Pyodide, FastAPI, Go, PostgreSQL, and Docker. You will be responsible for everything from PWA Service Worker architecture and data synchronization to multi-agent LLM design and model optimization for offline performance. If you are a builder energized by creating a highly complex and unique tech stack to solve a massive market need, we want to talk to you. This role offers the Lead Engineer → CTO trajectory. To apply, submit your Resume + GitHub + 1-page cover letter + 3 references to: Email is hidden Subject: "Candidate: AI Fullstack Engineer - [Your Name]"

Note on Compensation & Growth: The $80K is a starting base salary, with a clear path to $300K+ total compensation (salary, bonuses, equity, and benefits) based on demonstrated technical contribution and business performance.

NIL Club | https://nilclub.com | Remote (US only)

Role: We are looking for a skilled Full Stack React Native Mobile Developer to join our innovative team. You’ll focus on creating and maintaining a mobile application to help student-athletes monetize their NIL (name image likeness). The ideal candidate should be proficient with modern development practices, leveraging AI tools daily for productivity and innovation.

Stack: Typescript, React Native, Expo, React, Next.js, MongoDB, Inngest

More info and how to apply: https://nilclub.notion.site/senior-full-stack-react-native-m...

AIRMO | Embedded SWE, Electronics Engineer | Berlin - onsite | Full-time

At AIRMO we're building the single source of truth for GHG emissions data, starting with methane. We are developing a suite of active and passive optical sensors for UAS, aircraft and satellite platforms, and are planning to launch our first satellite late 2026.

We're looking for an electronics engineer and an embedded software engineer to join our team in Berlin.

Learn more here: https://www.airmo.io/careers

Location: London Remote: Hybrid Willing to relocate: No Technologies: React, Java, Python Résumé/CV: https://damonhayhurst.github.io/cv/ Email: Email is hidden I'm a product engineer through and through, seeking greater ownership across both sides of the development lifecycle.

Harvard SEAS | https://metareflection.seas.harvard.edu and https://namin.seas.harvard.edu | Postdoctoral Fellow | Greater Boston Area | ONSITE

I am looking for a postdoctoral fellow interested in the intersection of programming languages and artificial intelligence, in particular verification and large language models.

Our main goal is to create a PL+AI system that is the best at verified program synthesis. We will use the verification-aware programming language Dafny and co-evolve an LLM and a discovery system for Dafny.

Please contact me at Email is hidden if interested. Include a CV and GitHub link.

Cora AI | Founding Engineer, Full Stack | Remote (USA only; Bay Area / CA preferred) | Full-time | $150–200k + early equity

We’re building the account intelligence layer (the missing brain between the data warehouse and enterprise apps) to orchestrate AI agents that actually move revenue and retention, not just demo well.

We’re live with several enterprise customers and hearing: “I’m super excited!! You’re changing our lives!!” — Account Manager (mid-market).

We are backed by Acrew Capital, Emerson Collective, Recall Capital, and angels from LinkedIn, BetterUp, Glean, and Scale AI. Strong pipeline beyond what’s already in production.

Tech: Python, FastAPI, React, Vite, Render (PaaS), Inngest (orchestration)

Apply if you:

- Have real 0→1 startup experience

- Love digging into the details

- Break fuzzy problems into incremental, shippable chunks

- Ship fast and own outcomes end-to-end

- Can effectively steer and leverage AI IDEs

Why Cora:

- Work on cutting-edge applied AI: voice agents, knowledge graphs, multi-agent systems, simulations, and more

- Real users, real impact, high autonomy

- Fast, fair interview loop — no BS

- Fully covered healthcare for you and your dependents

- 401(k) plan

- Flexible time off

Learn more: https://www.cora.ai/

Interested? Email Email is hidden — these go straight to me, and I read every one.

Polar Sky | Bay Area | Full-time | Founding AI Engineer

Generative AI is rewriting how organizations use data, and breaking traditional security models in the process. We’re a team of cybersecurity, AI, and systems experts building the foundation for secure, trustworthy AI in the enterprise.

We're looking for a Founding AI Engineer who loves building with AI -- crafting context pipelines, integrating and evaluating LLMs into production systems, and delivering AI-native product experiences. You'll work on all parts of Polar Sky, from the data and eval systems to the reasoning, retrieval, and orchestration systems.

Apply online here: https://ats.rippling.com/polar-sky/jobs/a04ed5b7-6202-45e6-b....