Prove AI | Senior Software Developer (Full Stack) | Europe, UK, United States, Canada, Brazil | Remote

Prove AI is an AI management platform that helps organizations centralize and manage their AI models while maintaining strict oversight of data access and usage. https://proveai.com/company

This is a hands-on engineering role for someone excited about crafting production-grade software, solving complex problems, and contributing to a high-performing product and engineering team. You will work across the stack—primarily using TypeScript, React, and Node.js—with opportunities to contribute to both backend systems and frontend interfaces. While the role values frontend capability, strong backend engineering experience is essential to support our API layer, data processing, and system integrations.

Check out our full JD here - https://proveai.careers.hibob.com/jobs/1a652b22-bdf9-438a-a9...

You can apply via the link above

Plastic Labs | DevRel, Summer Interns| NYC | https://plasticlabs.ai

Plastic Labs is building systems that map personal identity using AI-native memory & social cognition. This means individually-aligned agents that you can trust to act autonomously on your behalf & agents with rich identities all their own.

We're pursuing this with our flagship product Honcho (github.com/plastic-labs/honcho) a memory & identity layer for agentic applications. learn more at https://blog.plasticlabs.ai

We are looking for a Developer Relations Engineer to help us evangelize Honcho to the broader dev community. This involves engaging the community online & in-person, building demos, writing documentation & blog posts, and working with the dev team to communicate feedback from the community.

Check out the full requisition here: https://blog.plasticlabs.ai/careers/developer-relations-engi...

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Sphinx Defense | Engineering, DevOps, & Product | Remote (US Only), DC, Colorado Springs, LA | https://www.sphinxdefense.com

Sphinx Defense builds software to solve complex national security problems for America and its allies. Founded by engineers and technologists with deep experience across commercial and defense technology, we're building a vehicle-agnostic communication infrastructure to enable satellite operators to securely utilize antenna networks and maneuver satellites in real-time. We're bootstrapped, profitable, and growing aggressively.

To learn more about who we are, our engineering culture, and whether this is the right place for you, read our Key Values profile: https://www.keyvalues.com/sphinx-defense

Our current openings are: Sr. Backend Engineer - Colorado Springs : https://grnh.se/7184c0238us

Sr. Backend Engineer - Remote : https://grnh.se/3ef2598b8us

Don’t see a role that aligns with your interests or don’t have the specific Space/ Command & Control experience? Apply to the general interest application and list what type of role you would be interested in : https://grnh.se/4ce199d68us

Check out our open roles: https://www.sphinxdefense.com/#careers

Queueco | Research Engineer | HFT | London, UK | Full time on-site | Visa sponsor

We are a proprietary trading firm operating in conventional as well as cutting-edge alternative markets. Our strategies run 24/7 without manual intervention powered by low-latency infrastructure and the latest machine learning techniques. We’re a meritocratic and lean team of highly-motivated scientists and developers and as such value technical ability more than politics: what matters is how good your code is, not how well you sell yourself. We spend no time dealing with clients, customers or investors and instead focus on growing our business by building better technology.

If you are a talented research engineer with strong developer skills who likes to work on low latency systems and large data science pipelines then please get in touch. We are also happy to sponsor exceptional talent.

You will be embedded within research and serve as primary resource for diverse software engineering challenges within the team. Your responsibilities will include efficiently processing extensive amounts of market data or improving the computational performance of live strategy code.

You can have a look at the role and apply via: https://apply.workable.com/queueco/j/a43d6b3c23/

Or directly write us an email to Email is hidden.

Software Engineer (w/m/d) | Berlin | Onsite | Media4Care

We build tech: digital assistants that help caregivers and seniors live with more joy. Small senior team, big impact.

Stack: TypeScript (full-stack), React Native, GraphQL, Postgres, Bedrock (Claude/Llama), Transcribe, pgvector RAG, SageMaker + Inferentia2, VPC + KMS, Guardrails.

Work: End-to-end feature ownership, product thinking, clean abstractions, meaningful AI/LLM integration.

You: 5+ years experience, strong programming skills, can think in tradeoffs, not just libraries.

Why us:

Purpose > vanity metrics (healthcare, not adtech)

Autonomy + flat team

Modern stack, real-world constraints (accessibility, privacy, offline)

Process: short written Qs → intro call → 4–6h real-world coding/product challenge → tech discussion → fast offer.

Apply: https://m4c.jobs.personio.de/job/2019549

Sort It Out SI | Unity Consultant | Remote | Short Term | $50 p/h

Dates: October 21st - November 18th.

We're looking for an expert in Unity who can help in one or more of the following areas: - Harmony / Melon Loader / IL Injection to hook into game code - Cheat Engine tools for modifying and exporting the games database - Replacing / exporting 3D meshes, textures and animations - Unpacking / repacking AssetBundles/Addressables

We make mods for the video game Football Manager which has just been rewritten in Unity after using a proprietary engine for the past 20 years.

We're looking for someone (or multiple people) to help explore the game upon release and identity new modding opportunities.

This is short term work and would be most suitable for students, hobbyists or temporarily unemployed looking to pick up a few extra hours work.

It is possible it could extend longer term if the right opportunity is identified however we are primarily a fansite for the game and do not have a history of making permanent hires.

The main duties would be answering basic Unity questions from web developers who have never touched Unity, free exploring the games code and writing very basic documentation and proof of concepts.

We are totally flexible on anything from 5-40 hours per week.

Please email: Email is hidden

Core Flow AI | Software Engineer | Sydney (ONSITE) | Full-Time | $300-500k AUD + equity

We’re building the future of consumer entertainment. In less than a year, we've scaled to 10m+ users and are one of the top 50 AI sites globally, all with 0 funding and a team of <10.

We’re a small, technical team who like to solve hard problems and ship fast. Our stack is TypeScript, Next.js, React, Postgres, Temporal, and a whole lot of AI.

We work in the adult entertainment space, so please apply only if you’re comfortable with the industry.

Interested? Send your resume to Email is hidden with either a snippet of code you’re proud of, or a short explanation of an interesting technical problem you’ve tackled.

MTA | Full-time | NYC | 3x/week in office (onsite)

We're hiring one engineering manager and one UX designer.

Our team works on all the (non-ad) screens in the subway, as well as two apps (TrainTime and the MTA app) and our website. We're a team of 20, mostly engineers, a few PMs and a designer. We operate like a startup within the MTA and are responsible for all customer-facing digital endpoints.

To apply EM: https://careers.mta.org/jobs/16696562-manager-product-develo... (ignore the job title and description, this is the EM role. You can mention that you found out about this opportunity through HN in a cover letter) Designer: https://mta.breezy.hr/p/7d405a5cafd6

Customer Service Lead | Bond Home | ONSITE Cresskill, NJ (15min from NYC)

Bond Home [1] Co-founder & CTO here. We're hiring a Customer Service Lead to elevate our support team with cutting-edge AI tools like Claude Agent SDK and realtime voice.

What we need: Someone who can both implement modern AI solutions and lead our 6-person support team through the transition. Technical chops + people skills.

What we do: We make smart home bridges and RF controllers that connect "forgotten" devices (shades, blinds, ceiling fans, fireplaces) to the smart home. Full stack built in-house.

The company: Founded 2017, same team, same location. Profitable and customer-focused. Our previous CS manager retired after a great run; the team has excellent retention.

The role: Own customer experience strategy, implement AI tooling, manage and mentor the team, work closely with engineering.

Location: Must be onsite in Cresskill, NJ.

Interested? Email Email is hidden

And if you want to be bullish, you can already book an interview slot [2].

[1] https://bondhome.io/ [2] https://meetings.hubspot.com/chris-merck/interviews