NVIDIA | Python Developer (Django) — Air (Digital Twin for Data Center Simulation) | HYBRID — [Raleigh-Durham, NC] | Full-time

NVIDIA’s Air team builds a web app that simulates real data centers for design and validation. Learn more: https://air.nvidia.com

You’ll: design/build web apps & REST APIs in Python/Django; write clean, tested code; review PRs; debug performance/security issues; partner with PM/architects; and ship scalable features used by teams running the world’s most advanced data centers.

Must have: 3+ years Python + Django; REST/async; SQL + relational DBs; Docker/QEMU; Git; agile collaboration; strong comms.

Nice to have: Kubernetes; Linux networking & SDN debugging; JavaScript/HTML/CSS; Angular.

Compensation (depends on level/location): L2 $120,000–$189,750; L3 $148,000–$235,750 + equity + benefits. Apply: [paste your ATS link for JR1999975] (or search JR1999975 at https://www.nvidia.com/en-us/about-nvidia/careers/)

You can message me on linkedin if you'd like more info or would like a referral! https://www.linkedin.com/in/sameure/

LEGO | London (Farringdon) | Hybrid (3 days a week in the office)

* Lead engineer on the personalisation / recommendation engine

* Python, Node JS / TS, Databricks, Aurora RDS, AWS, API Gateway

* Experience required in both data engineering and software engineering

* Experience welcome in ML engineering and data science

I've worked on this team for a year or so now and it's fair to say that there's been no shortage of things to work on - you'll be immersed in the challenge of distributing personalised recommendations across the business and become a part of a company which adopts a lot of the nice danish working practices. The office culture is an important aspect of the business so 3 days a week is a needs-must. If this sounds like your bag - apply below:

https://www.lego.com/en-us/careers/job/lead-engineer-persona...

Founding Engineer – AI/Finance (Retail Trading Research & Strategy) - Remote or New York City

We are building an AI platform that empowers retail traders with institutional-grade research tools and real-time strategy guidance. As our first technical hire, you will own the full lifecycle from AI model research to production deployment. You will design and implement data pipelines for market, news, and sentiment feeds, fine-tune LLMs for financial reasoning, and ship features that help retail traders make smarter, faster decisions with hedge-fund-level tooling. You will collaborate directly with AI researchers, engineers, traders, and quants from top institutions to bring financial intelligence to the retail trading world.

Minimal Qualifications Proficiency in Python and modern ML/AI frameworks (e.g., PyTorch, JAX) Hands-on experience with LLMs, transformers, time-series modeling, or AI agents Strong understanding of cloud infrastructure (AWS/GCP), scalable API development, and data engineering pipelines Proven ability to take projects from initial concept to production deployment Master’s or PhD in Computer Science, Mathematics, or Physics (in progress acceptable), or a Bachelor’s degree with a proven track record of work supported by a GitHub

What We’re Looking For AI/ML Expertise – Proven experience with LLMs, transformers, or other foundation models Cloud & Infrastructure Skills – Proficiency in the Python ML stack, scalable API development, and cloud platforms such as AWS or GCP End-to-End Ownership – Ability to take projects from concept through production deployment Research Mindset – Experience implementing state-of-the-art AI methods and conducting research in ML/AI

Nice to Have Publications in ML/AI conferences (NeurIPS, ICML, ICLR, ACL, CVPR, etc.) Trade strategy generation and backtesting experience Interest in trading and understanding of retail workflows across stocks, crypto, and futures Familiarity with brokerage APIs (Interactive Brokers, Alpaca, etc.) Knowledge of options strategies, risk management, and portfolio optimization The drive, creativity, and technical depth to be that “cracked” engineer

Email Resumes/GitHub: alexyskoutnev@gmail.com

Nevoya - Senior Frontend Developer & Backend/Full Stack Developer – SF Onsite

About Nevoya: Nevoya is North America's leading next-generation electric trucking carrier, transforming logistics through AI-native operations and relentless customer focus. The company builds and uses proprietary technology to deliver zero-emissions carrier services to Fortune 500 shippers with superior economics and service to legacy diesel operators. The company has offices in California and Texas, and is backed by globally-renowned investors including Lowercarbon Capital.

Open Roles: Senior Frontend Developer Location: San Francisco Onsite We're building North America's first all-electric truckload carrier, powered by AI and proprietary logistics tech. As our Senior Frontend Developer, you'll lead UI development for Apollo, our in-house logistics platform. Expect complex interfaces, maps, and workflows that drive real-world operations. Tech: React, TypeScript, TanStack, FastAPI You: 5+ years in frontend, strong with design systems, state management, and performance. Logistics or mapping experience is a plus. Join a fast-moving team solving big problems with big impact. Competitive pay, low-ego culture, high ownership. Apply Here: https://jobs.ashbyhq.com/nevoya/b35a83ec-6f35-44e4-9f2e-de83... Backend / Full Stack Developer Location: San Francisco Onsite We're building the backbone of electric freight. As our Backend/Full Stack Engineer, you'll own the systems that power real-time dispatch, routing, and telemetry. Tech: Python, FastAPI, PostgreSQL, AWS, Docker You: 5+ years backend experience, strong in APIs, data modeling, and systems architecture. Full-stack skills or logistics experience a bonus. Build from the ground up in a fast-scaling, mission-driven company. High ownership, high impact, no fluff. Apply Here: https://jobs.ashbyhq.com/nevoya/b16ae1cc-6c38-4697-84d0-be94...

Perion | Advertising Technology | https://perion.com/ | Hybrid (Onsite+WFH)

Hiring software engineers across different locations and teams:

-

Tel Aviv:

Back End (Go) developer: High-performance edge ad auction systems

Data Scientist: Multiple ML and AI initiatives (internal systems as well as client-facing)

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Montreal:

Data Engineer: Advertising (big data, for real!) data processing systems

Back End (Python) developer: Working on a (tastefully-designed) set of python transactional microservices serving the core business web application and APIs

-

If you see yourself as a good fit for the roles in the above locations, please browse the job descriptions on our web site ( https://perion.com/careers/ ) and reach out to me directly - my contact info is in my HN profile bio.

Risiq GmbH | Backend Engineer (Python) | Hybrid Mannheim, Germany (onsite 1x/month) | €55k–€85k | Full-time or part-time We help banks and financial institutions streamline risk management, ensure regulatory compliance, and cut costs with our platform Ribeca. Small, agile team (6–8 devs) working with Python, FastAPI, AWS, and Docker.

Role: Build and extend backend services, integrate AWS, automate deployments, write tests, and develop ESG/regulatory features. You: 3–5+ years backend experience, fluent German, AWS/Docker familiarity, agile mindset. Benefits: Flexible hours, workation, 30 vacation days, budget for training, free choice of hardware.

Apply: info@risiq.de — subject “Python Backend Engineer — YC”

Digolution | Talented Developer | Remote(US only) | Part-time | $100~$200/hour

We are seeking a highly skilled software developers who not only excels technically but also communicates effectively within diverse teams and with clients.

What We’re Looking For: - Proven experience in JavaScript, Python, PHP or other typical program languages. - Strong understanding of software architecture, design patterns, and best practices. - Excellent problem-solving skills and attention to detail. - American that have outstanding verbal and written communication skills in English. - Ability to explain complex technical issues in a clear, concise manner.

Why Join Us? - Work on exciting projects with a global team. - Supportive environment that values continuous learning and growth. - Flexible work hours and remote-friendly culture.

Submit your proposal and resume to daniel@digolution.net. After checking it, the hiring team will schedule the meeting.

If you are passionate about technology and effective communication, we’d love to hear from you!

Poe.com | Staff Security Engineer (Python) | REMOTE: US/Canada/Ireland/UK) | Full-time

About us: Poe is a a16z backed product. Gives you access to the best AI from many different companies in a single interface across all of your devices. ChatGPT, Claude 3.7 Sonnet, DeepSeek R1, many of the top image, video, and audio generation models, and millions of user-created bots are all on Poe.

Stack: Python, React, Typescript, Next.js, GraphQL, Docker, K8, AWS.

Compensation (location dependent): For US: $155-$265k USD + equity / For Canada:$185-270k CAD + equity.

What We’re Looking For: You will be a key member of the newly formed Security Engineering Team, with a mission to keep Quora/Poe safe from security problems by building robust protections around our products, infrastructure and people. Our small engineering team works on challenging problems every day. We have a culture that's rooted in constantly learning and improving, and our engineers are encouraged to think big and experiment with new ideas.

Timezones: 9am to 3pm PST.

Apply below: Staff Product Security:https://jobs.ashbyhq.com/quora/e888eecc-678f-4eeb-bb5f-5ca70...

Staff Infrastructure Security: https://jobs.ashbyhq.com/quora/b808dfbe-4d0d-4077-b88c-cdd7f...

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1099 OR Equity | Remote, or NYC Pref | RepIntel.com

RepIntel is door-to-door field intelligence for pharmaceutical sales.

Currently seeking a CTO-track Full Stack Engineer who can transform python backend into a working MVP.

In a pilot test, RepIntel increased field rep efficiency by 40%.

Learn more: https://www.repintel.com/careers

Email: mgmt@aletheiatalent.group, after reading project scope

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Kaedim | Software Engineer, Machine Learning Engineer, Customer Support Engineer, Product Manager, Founding Recruiter | Onsite | Full-time | San Francisco, Singapore, London | US & UK Sponsorship Available Kaedim is an AI startup building ML algorithms that turn images into digital 3d models. We are a group of ~10 looking to grow the team to help streamline 3d content creation for 3d artists and are already working with 1 of the top 10 games of all time! Using our AI and in-house art team, we have the most accurate, game-ready 2d → 3d asset generation pipeline. Currently, we are offering a 10x speed up to 3D asset creation pipelines of 200+ game developers and we are working with partners like Voodoo, Upland, Azra Games.

Check out our demo here: https://www.youtube.com/watch?v=tlQWFG1DLb0

Job descriptions and application link: https://join-kaedim.notion.site/

Tech Stack:

Product (web app, API): React, MySQL, NodeJS, Python, AWS

Machine Learning: Python, PyTorch, AWS

MLtwist is a technology that focuses on the data prep and training for unstructured ai data. We're looking for a lead developer to join us on infrastructure. Data collection & tagging is projected to be a $17b opportunity, a lot of companies want help getting their data ai ready in a way they trust that gives solid quality. We care a lot and our customers are amazing, check out our site: https://mltwist.com/news/

* Scalable and tolerant systems using Kubernetes, Docker, and cloud infrastructure (GCP) * React, NextJS, PostgreSQL, Docker, Python, Javascript/Typescript. * Infrastructure: GCP/AWS, (Cloud Storage), running containers in production (Kubernetes, GCP GKE, GCP Cloud Run, AWS ECS, AWS EKS, AWS Fargate).

Stoke | Bellevue, WA | ONSITE (hybrid)

Stoke is a 5-month-old startup (founded in Feb 2025 by insuretech veterans with $4B+ in previous exits across 2 bootstrapped companies) building real-time Voice AI agents to make insurance purchases easier, faster, and more affordable.

PROBLEM: Insurance is a critical product, and the current system is broken. Policies are the main shield between American households and financial ruin. At 5% of income, it’s the fourth largest household expense after housing, transportation, and food. The majority of people have insufficient coverage and are paying too much for it. This is primarily driven by human agents who frequently have insufficient expertise and are driven by ~$200B a year in perverse incentives. Customers eat the costs of all of this through higher premiums.

SOLUTION: AI agents that enable personalized, unbiased, expert product recommendations at scale and at a fraction of the cost. We can simultaneously raise the bar of service while stripping out unnecessary costs, delivering those savings directly back to consumers in the form of lower premiums.

TEAM: 5 engineers (ex-Facebook, NYT, ScaleAI, AssuranceIQ), growing fast.

HIRING: Founding principal engineers/leaders with expertise in distributed systems, infra, real-time pipelines, agentic AI.

TASK: Shape architecture (AWS, Kafka, Python, Kubernetes, WebRTC); scale for 1000s of concurrent calls under 400ms latency; mentor as we hit 50+ engineers; directly help families save on premiums.

YOU: Obsess over reliable code, solve tough problems, ship fast, explain concepts clearly, learn quickly.

PERKS: Competitive salary/equity, full benefits, top tools, encouraged recharge time, quarterly retreats (hackathon + vacation).

Email Kyle Moseley: kyle@stoke.com with resume and why Stoke.

JotPsych (https://jotpsych.com) | Hybrid (DC Area) | Full-Time | Roles: (1)Senior Frontend Engineer (2)Senior Backend Engineer | $5m Seed Round

JotPsych is a behavioral health AI scribe tool and we're looking for frontend and backend engineers as we build the first agentic EHR for behavioral health. We're looking to hire ASAP! More info in the links below:

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Senior Frontend Engineer: https://jotpsych.notion.site/We-re-hiring-Senior-Frontend-En...

Looking for engineers that are strong with Redux Toolkit (RTK) & RTK Query, comfortable reasoning about client‑side caching & invalidation.

- Cash (~$150-250k) - Material equity (~0.75%)

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Senior Backend Engineer: https://jotpsych.notion.site/We-re-hiring-Senior-Backend-Eng...

Looking for engineers that are fluent with Python (FastAPI, Celery), SQL & NoSQL schema design, AWS primitives.

- Cash (~$150-250k) - Material equity (~0.75%)

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Axle (https://www.axleruns.com) | Remote (USA) | Full-Time | Role: Senior Full-Stack Developer (Python, Go, Next.js)

Hi, I’m Yanni Giannaros, founder & CEO of Axle (www.axleruns.com). We build AI agents that automate AML/KYC compliance workflows for fintechs, banks, and crypto companies. We’ve raised $3.2M and are live with dozens of enterprise customers. Our agents eliminate manual review bottlenecks, helping teams focus on complex cases and operate more efficiently. We found product-market fit and we're gearing up to scale. My cofounder and I have built and sold Fintech companies before this and we care deeply about this problem.

Headcount: ~8

Stack: Python, Go, Next.js, Postgres, GCP, SOTA LLMs

Shoot me an e-mail here: yanni[at]axleruns.com

Thank you!

Estuary | US Based / Remote | Full-time – https://estuary.dev/

Estuary is a VC-backed startup building the next generation of real-time data infrastructure. Our platform, Estuary Flow, combines change data capture (CDC), stream processing, and declarative configuration to unify real-time and batch data movement.

We’re open-source, developer-first, and focused on making data engineering radically simpler.

We’re a small, high-trust team with deep experience in distributed systems, stream processing, and data tooling — and we’re growing quickly.

We’re hiring for: Senior Backend Engineer (Integrations) – 5+ years of backend engineering experience. Own and scale high-impact systems that power real-time data pipelines. You’ll work on complex integrations with external APIs and databases, improve our internal connector frameworks, and tackle deep challenges in performance, reliability, and developer experience.

Backend Engineer (Integrations) – 2–4 years of backend experience. Help expand and maintain our catalog of real-time data connectors to SaaS tools using Python. You’ll work closely with experienced engineers to build and optimize integrations with third-party systems, while deepening your skills in infrastructure and stream processing.

Site Reliability Engineer - First SRE hire. Greenfield role owning reliability and scalability at Estuary. Build out automation, observability, and deployment pipelines, and lead incident response as we scale. Plenty of room to shape tooling and practices.

Solutions Engineer - Work with the founding team to help customers use Estuary effectively. Collaborate closely with engineering and product, shape how users integrate real-time data, and feed insights back into product development.

https://estuary.dev/about/#careers

What we’re looking for: Engineers who care about building reliable, maintainable systems and enjoy working with complex APIs and data flows. We value curiosity, clear communication, and a willingness to learn.

Bonus points for experience with CDC tools, open source contributions, or fast-paced startups.

To apply: Email your resume to careers@estuary.dev

Alembic | San Francisco, United States | Full-time | Onsite

Alembic is solving marketing's hardest problem: proving what actually works. If you're looking for frontier technical challenges at an applied science company, this is the place. We’re building trusted systems that Fortune 100 companies use to make multimillion dollar decisions. We work together 5 days onsite in SoMa.

We’re rapidly scaling our full engineering and GTM teams. We’re especially motivated to hire for these roles right now:

1. Enterprise Sales Engineers 2. Senior Full Stack Engineers (Typescript/Node.js) 3. Data Engineers 4. Python Developers for AI/ML

Link--> https://jobs.ashbyhq.com/alembic?utm_source=G4mXVAg728

Portal Innovations, Stargaze | Product Engineer (Part-Time, Chicago) 20 hrs/week | AI + biotech

Portal Innovations is a life sciences venture platform building tools to surface high-potential science and researchers. We’re hiring a part-time Product Engineer (20 hrs/week, Chicago only) to extend Stargaze, our AI-driven innovation discovery toolkit.

Tech stack: Python, Postgres, React, AWS, Modal, Airflow Role: Backend + front-end development, new feature buildout, infrastructure support You: Comfortable across the stack. Energized by the idea of building software for scientists, within a venture platform. (See link below) Own your work and can work independently while collaborating with non-technical stakeholders.

Bonus: Role could grow into full-time for the right person.

More about Stargaze: https://innoeco.substack.com/p/0d1352cf-b4d4-4cfa-8b09-e0964... To apply: steven.lehmann@portalinnovations.com

Zeven | Senior Backend Developer | ONSITE in Zurich (Switzerland) | Full-time | Competitive salary + stock options We're a newly-founded and well-funded startup that is seeking to revolutionize the sports industry with AI-powered solutions. Our mission is to unlock human potential and redefine the sports experience through innovation and technology.

We are looking for an experienced Senior Backend Developer and sports enthusiast to join our on-site team in Zurich, Switzerland. This is a hands-on, high impact role. We use Typescript for web, Python for ML, PostgreSQL, React + TanStack, AWS and SST.

Please see the Full Job Description [https://tinyurl.run/zeven] for requirements and more details about our Tech Stack.

We are offering full-time employment with a competitive package:

• Competitive salary and stock options.

• Pension plan bonus and 25 days of paid vacation plus public holidays.

• Charming office next to the lake of Zurich with fully-equipped kitchen.

• Top-notch equipment (MacBook Pro laptops, standing desks, etc.).

• We love to organize company outings and sport events.

If you're a motivated and experienced backend engineer who is crazy about sports and looking for a new challenge, we'd love to hear from you! Please email CVs to alex@zeven.ai

We do not consider remote candidates, agencies and candidates located outside the EU/UK/EEA/Switzerland

Weave.bio | Regulatory AI SaaS for Biotech | San Francisco, CA, USA | HYBRID | Full-time

Weave Bio is a <50 person start-up building an AI-native regulatory automation management platform redefining regulatory submissions for novel therapeutic candidates. www.weave.bio

Hiring: - Senior Backend Engineer https://job-boards.greenhouse.io/weave/jobs/4003308009 Django + Python + Postgres + Redis + production LLMs

Apply directly or email sarah@weave.bio

Unitary Foundation | Full-Stack Web Developer (Data visualization) | Open-source | Full-time | Remote (EU/NA timezones) | https://unitary.foundation/

We're a quantum computing non-profit organization, and we are looking for a full-stack web developer.

The job is classical — mostly building web portals — but those portals open into the quantum world.

Quantum computing knowledge is a plus, but not required. The initial project is a platform to understand the trajectory of quantum computing. The focus is on data visualization, so strong skills in that area are preferred. The candidate will work mostly alongside quantum engineers and researchers, so ownership to work independently on the classical side of things is important.

The stack of the main web project is PERN, but the organization maintains other projects in Python.

For more info, reach out to info@unitary.foundation

Full description of the role is here: https://unitary.foundation/jobs/mts-fullstack-webdev/