Rover | Barcelona, Spain & Seattle, USA | Analytics (Multiple Roles) | Full-time Rover is the world’s largest online marketplace for pet care. We connect millions of pet parents with trusted sitters and walkers, and we’re building a global platform that combines technology, community, and love for animals. With offices in Seattle, Barcelona, and beyond, we’re scaling an engineering culture focused on high-quality code, data-driven product decisions, and customer empathy. Open Roles:

Product Analyst (Seattle) Business Analyst - Operations Analytics (Seattle) Lead Business Intelligence Analyst - Marketing (Barcelona) Lead Data Analyst - Marketing (Barcelona) Lead Data Analyst - Product Analytics (Barcelona) Manager, Product Analytics (Barcelona) Senior Product Analyst (Barcelona) Data Engineer, Analytics (Barcelona)

Apply: https://www.rover.com/careers/

Instinct Science | Senior Full-Stack Engineer | REMOTE (US) | Full-Time | $150K–$175K

Instinct Science is the AI leader in veterinary medicine - and we're just getting started. Our platform is already transforming how veterinary teams practice, combining a cloud-native EMR with real-time clinical decision support and applied AI that saves animal lives every single day. We didn't enter this space to make incremental improvements. We're here to disrupt a massive, underserved industry from the ground up - and we're looking for the engineers who want to help us define what comes next.

What you'll work on:

Own projects from scoping through release Build full-stack features using Elixir (backend) and React/TypeScript (frontend) Design scalable, reliable solutions in a small, cross-functional team

Stack: Elixir, React, TypeScript, AWS, PostgreSQL You're a strong fit if you:

Have solid experience building modern SaaS applications across the stack Thrive in a remote-first, async-friendly environment Care deeply about code quality and the end user (in our case — vets and their patients)

Nice to have: Deep Elixir/Erlang experience, AWS, relational DB design Compensation & Benefits:

$150,000–$175,000 base Medical, dental, vision + 401K with match Generous stipend for wellness, professional development, and your pet(s) "Flow State Fridays" and owner-like flexibility over time-off Annual all-expense-paid company retreat

Apply: https://instinctscience.applytojob.com/apply/1H156iuuzg/Seni...

ChainSecurity | Blockchain Security Engineer | Full-time | INTERNS , HYBRID/REMOTE, Zurich, Switzerland | VISA possible | https://chainsecurity.com/ ChainSecurity is a young and innovative cybersecurity company that operates in the blockchain and cryptocurrency space. Our mission is to make the blockchain space secure and trustworthy for people, companies, and governments alike. We are proud of our security experts from the renowned universities ETH Zurich, EPFL Lausanne and others.

We are trusted by 100+ blockchain companies and established corporations with security audits and services. We have secured complex systems for top blockchain clients, such as decentralized finance (DeFi) projects, and multinational organizations, such as banks and industrial consortia. A ChainSecurity Auditor will review the most complex blockchain projects to find vulnerabilities which no-one else can. By using state of the art tools, expert knowledge and a deep understanding of the fundamentals, we secure projects handling billions, often forming the foundation in the new paradigm of an open financial system.

Your Responsibilities:

* Work directly with the developers of the most successful teams in the blockchain industry to audit their code and secure their products

* Contribute to our security tools and create new ones in collaboration with our internal research team

* Conduct security research and publish your findings Requirements:

* Strong background in software engineering, focused on security relevant areas and most importantly being able to reason about complex code

* Experience with penetration testing, vulnerability scanning, threat modeling or similar is a plus

* Good knowledge of cryptography

* Proficiency with Linux and Git

* Good written communication skills

* Fluent in OOP programming language

Bonus Points:

* Formal Verification, White Box, Vulnerability Scanning

* Solid Blockchain Knowledge

* Consensus Algorithms

Join us here: https://www.chainsecurity.com/jobs/blockchain-security-engin...

Questions about the role? Contact: jobs@chainsecurity.com

Puntt.ai | Full-time | SF | Hybrid

About Puntt.ai

Our mission is to free humanity from meaningless work. We are building the System of Record for Enterprise Compliance, turning hours of manual, high-stakes marketing workflows into minutes of automated precision.

We are a small, high-density team of engineers and operators. Having proven our value with global brands, we are now at the inflection point where our technical architecture meets massive scale. This is a "rocket ship" moment: we are moving beyond simple automation into a world of vision-first, agentic workflows that solve the problems generic frontier models cannot.

Looking for:

Data Engineer (Real-Time & Batch Systems, AWS) - https://wellfound.com/l/2C4jex

Founding Senior Applied AI Engineer (Agentic Systems) - https://wellfound.com/l/2C3WzL

Founding Enterprise Account Executive - https://wellfound.com/l/2C3Kdk

Forward Deploy Engineer (Enterprise AI) - https://wellfound.com/l/2C5wrq

Hiring – REMOTE LATAM - We build AI tools that help high-volume law firms manage their caseloads more efficiently. Our first product—an AI assistant that transcribes and classifies inbound calls—is in production. We’re now expanding into case tracking, follow-ups, and full workflow automation.

Looking for:

AI Engineer: 4-6 years of experience in AI/ML engineering.

Tech Lead: Lead a senior team, shape product and tech, work closely with founders.

SRE: DevOps & Infrastructure Engineer // CI/CD and Kubernetes

Tech Stack: Python, TypeScript, Postgres, Kubernetes, GCP Languages: Spanish + English.

Apply here: https://tramcase.na.teamtailor.com/jobs

Findigs | Full-time | NYC | 3x/week in office (M,T, Th) | findigs.com

At Findigs, we’re transforming the rental experience — making it fairer, stress-free, and more convenient by changing the fundamentals of renting.

We build high-scale applications that streamline renting for millions. Our modern tech stack includes Python, Typescript, Node.js, React, and scalable cloud infrastructure.

We foster a collaborative culture where engineers have high ownership and autonomy, taking features from concept to deployment.

Join our sharp, supportive, and mission-driven team in our newly renovated SoHo/NoHo office.

Open roles:

Lead Software Engineer (https://jobs.lever.co/findigs/1ea92751-1c85-4eb6-84b4-86c529...)

Senior Software Engineer (https://jobs.lever.co/findigs/3b39616d-223f-4326-a500-f804c3...)

Backend Software Engineer (Mid-Level) (https://jobs.lever.co/findigs/5e865781-244f-4e4f-b7bd-e09973...)

Competitive Base Salary plus Pre-IPO Equity

401k Matching up to 4%

Unlimited PTO

Lunch in office every day, home office setup stipend, monthly gym stipend

CVector | Senior Software Engineer – Backend & AI Infra | New York City (FiDi) | ONSITE | Full-time | VISA SPONSORSHIP

CVector builds software to bring real-time economic optimization and AI prediction to every energy and manufacturing plant. We fuse live asset data with market dynamics into one decision layer that continuously forecasts, simulates, and optimizes — so plants run closer to their true economic potential every day. CVector recently raised $5M seed, read more on TechCrunch: https://techcrunch.com/2026/01/26/ai-startup-cvector-raises-...

We're looking for a senior backend engineer to evolve our core platform — time-series data systems, AI-assisted analytics, cloud infrastructure, and data ingestion pipelines. You'll take ownership of complex systems, drive major technical migrations, and shape how intelligence is embedded into industrial energy workflows. Think: AI evals and prompt engineering, MQTT ingestion pipelines, time-series schema design, PostgreSQL infrastructure, and ML platform support.

Stack: Python, TypeScript, Supabase, PostgreSQL, MQTT, TigerData, InfluxDB, AWS. 5+ years experience building production backend systems. FinTech, quantitative analysis, or econometrics background is a strong plus.

$125K–$150K + meaningful equity. Reach out to me at jnapoli+hn@cvector.com

Innolitics | Medical Device Engineers + Physician-Scientist (MD/PhD) | REMOTE (US) | Full-Time

Innolitics builds AI/ML software for medical devices — the kind that detects ear infections, tracks metastatic cancer, and plans radiation therapy. 60+ FDA clearances. We need engineers who want their work to matter. We're a remote-only firm (since 2012) that does engineering, regulatory, and cybersecurity under one roof. Our team includes MDs, PhDs, and software engineers. Clients range from Series A startups to large device companies. We're hiring for three roles:

1. Physician-Scientist (MD/PhD) — Biostatistics & AI Software Development MD + PhD in biostatistics, bioinformatics, epidemiology, or a related quantitative field. You'll design biostatistical plans for AI validation studies (MRMC, standalone, prospective), build production-grade statistical software and data pipelines, write FDA-facing statistical sections, and analyze large clinical imaging datasets. Fluent in Python and/or R. This is not a pure research role — you'll ship code that gets FDA-cleared and deployed in clinics.

2. Senior Web/Mobile Medical Device Engineer 5+ years SWE experience. 3+ years each in web and mobile. Fluent in TypeScript and Python. You'll build medical device software and produce FDA-facing technical documentation. Cross-functional role bridging engineering and regulatory teams.

3. Medical Device Software Engineer 3+ years SWE experience. Fluent in Python, C++, or TypeScript. Heavier emphasis on software development initially; you'll grow into regulatory documentation work over time. All roles involve writing production code for medical devices, authoring documentation for FDA submissions, and working directly with clients. No prior medical device experience required — we'll teach you. Why engineers stay here:

Agentic AI tools (Claude Code, etc.) are part of our workflow. We treat them as a impact multiplier, not a threat. ~1 hour of meetings/week for ICs. Flexible hours. 2 hours every Wednesday dedicated to learning ("10x Time"). Healthcare-only revenue. No debt. Never had a layoff. We pay $300 for take-home exercises because your time has value.

Stack: Python, TypeScript, C++, R, Django, React, TensorFlow, PyTorch, scikit-learn, Qt, Terraform.

Apply: https://innolitics.com/careers/

How we work (we publish our handbook): https://innolitics.com/about/handbook/

Full Time and Part Time roles Distark is hiring, an edutainment brand building learning videos for Education. Our small, passionate team creates animated shows and learning tools that help kids (ages 3-9) fall in love with curiosity and real-world learning. We use custom automation to speed up everything from story writing to animation. See what we’re making: https://www.youtube.com/watch?v=c46VaM_VZGU Open Roles (REMOTE, non US):

Animators (2D/3D or hybrid—experience with AI tools a plus)

Junior Software Developers (Python, Node, JS, or open to learning new tech)

Interns (all backgrounds, generalists, tech, or creative)

We are also looking for writers (different kind of hacking)

Important: You must be a parent (of any age child) We want people who care deeply about kids and learning. Lived experience as a parent is essential—our mission is to build things real families want.

Why join us?

Fully remote, async-friendly Ship real things that impact how kids learn Fast, creative, zero-corporate-BS environment

Direct access to founders; real ownership

Opportunity to shape our tools and shows from the ground up

To apply: Email jobs [at] studyturtle.com with your background, a few sentences about why edtech is important to you, and why this mission excites you. Please include links to any relevant work.

We are the hiring company and will reply to all genuine applicants. No recruiters, no agencies, please.

Upway | Software Engineers (All levels), Senior Product Designer, Senior Product Managers | Full-time | Paris (ONSITE)

We’re building the biggest bike shop in the world.

Upway is the leading marketplace for refurbished e-bikes across Europe and the United States.

In 3 years, we grew from 0 to $200M GMV. The tech team grew from a small senior core to ~12 engineers in 2025, and we plan to grow to ~30 engineers in 2026.

We also raised a $60M Series C at the end of last year to support the next phase of the company.

This is not a SaaS. We operate warehouses, handle real inventory, and build software that connects logistics, product, and marketplace dynamics at scale.

We work with a Shape Up–inspired methodology that gives teams real ownership: shaping problems, building solutions, shipping, and learning from real-world impact.

Stack: TypeScript | NestJS | React | Shopify | PostgreSQL | GCP

Learn more:

- Tech & Product subjects we’re working on: https://like-piper-15f.notion.site/tech

- Open roles: https://careers.upway.shop/

- Contact our tech recruiter: https://www.linkedin.com/in/maeg-horeau-28445b72/

Confido Legal | Security Engineer (Senior Software Engineer – Security) | Remote (US) | Full-time

Confido Legal is a fintech platform that helps legal tech companies and law firms embed payments and finance features into their products. Security and trust are foundational to our mission.

We’re hiring a senior software engineer to join our core engineering team and own security across the platform. This is not a standalone security department role. You’ll remain an active contributor to the product—writing code, reviewing PRs, shaping architecture—while serving as the team’s point person on security.

You’ll lead PCI DSS Level 1 and SOC 2 compliance, drive secure-by-default architecture, harden our AWS infrastructure, reduce vulnerability noise, and embed security into every stage of our product lifecycle. You’ll also participate in customer security reviews and incident response alongside engineering leadership.

Stack: TypeScript, React, Next.js, GraphQL, AWS (Pulumi IaC), Docker, ECS.

We’re a small, high-ownership engineering team where engineers lead domains (security, underwriting, growth) while continuing to build product daily. If you’ve “seen this movie before” securing real SaaS systems and want meaningful ownership without leaving engineering, we’d love to talk.

$175k–$225k. Fully remote (US).

Full Job Posting: https://confidolegal.com/about

Apply: https://confidolegal.com/security-engineer?hsCtaAttrib=31427...

Code&Co | AI/ML Tech Due Diligence | Fully Remote (EU or US) | Full-time

We are Code&Co. We conduct deep-dive technical due diligence for leading VC, PE, and Growth investors. We get a full "under the hood" view of some of the world's most interesting companies (recent highlights include DentalMonitoring and Osapiens).

I’m looking for colleagues to help identify key AI/ML risks and opportunities across a diverse set of companies. You’ll be analyzing architectures, data pipelines, and models to help investors make informed decisions.

If you enjoy seeing how different companies actually build their tech and want to share your view on what's real vs. what's hype, please get in touch.

Also we have our own in-house platform for the whole process, no pixel-pushing in Powerpoint here.

Contact: drapes_working_0x@icloud.com

See here for more general job offerings: https://codeandcocom.notion.site/Code-Co-Careers-b8e783b53b3...

Neocom | Senior Python Engineer | Onsite | Munich, Germany | Full-time

Neocom is a digital shop agent for online shops. Customers can chat naturally, get clear guidance, and find the right product faster, just like talking to a great salesperson in a physical store.

We've been in the guided selling space for the past 6 years and launched our new product, the Shop Agent, last year in November. Our customers who are already on this new product are loving it and demand more and more features.

We are now looking for founding engineers who can help our engineering team (5 people). We consider our selfs as craftsman, who care a lot about quality. A lot. We have a Python backend stack (fastapi, django, pydanticai), lots of postgres and typescript react frontends.

Ping me (CTO) at ssl @ neocom.ai

Zo Computer | Systems Engineer, Product Engineer | NYC or SF | Full-time

Imagine having an entire software company working just for you – housing all your personal data, proactively working in the background doing chores, building apps, and organizing information to support your life. It'll work around the clock, interact with people and businesses to make you more organized, capable, and creative.

We're building a new category of personal computing device – a personal cloud, built for personal agents (and the agentic internet to come). Our mission is to make private cloud computing accessible to everyone, by designing enduring abstractions and flexible infrastructure for consumers and their agents.

Systems Engineer: You should be proficient in Python, TypeScript, IaC, etc. and be an expert in distributed systems, storage/databases, networking, and containerization.

Product Engineer: You must be a generalist, and should be proficient in Python, TypeScript, coding with AI, and building AI products. You must have great taste in system, API, and UX design. You must have operating experience in early-stage startups. Former founders are preferred.

https://zo.computer/careers

Pennylane | Machine Learning Manager | Remote or Hybrid from Paris | Full-time

We aim to become the most beloved financial Operating System of French SMEs and Accounting Firms (and soon, European ones). We help entrepreneurs rid themselves of time-consuming tasks related to accounting and finance while providing them with access to key financial information to assist in making the best decisions for their business.

Machine Learning is core to the most-loved features in our products. The ML team is growing and we are hiring a second ML Manager.

As a Machine Learning Manager, you will lead a team of Machine Learning Engineers & Data Engineers (5 people), inside the Machine Learning & AI function (15+ people) in our Data department (50+ people). - You will contribute technically to the design and implementation of machine learning solutions and tools across the entire ML lifecycle, from model training and tuning to deployment, inference, experimentation and monitoring. - You will collaborate with Product Managers to ensure the highest impact and quality of machine learning work for our users, as well as the best atmosphere and motivation in the team. - You will grow your team continuously, and team up with other managers to set up the right culture and processes to enable people. - You will work closely with data engineers and software engineers to quickly deploy end-to-end solutions with a direct impact on our users, and improve our machine learning ecosystem.

Apply here: https://jobs.lever.co/pennylane/f5730a1c-ebf2-4965-a263-4812...

Edit: many other open positions https://jobs.lever.co/pennylane

Newbuilds | Remote Senior Ruby on Rails Developer | Remote (Europe) | Full-time

Newbuilds is hiring a Senior Ruby on Rails Developer to help scale a widely used proptech marketing platform, a Norway-based proptech company powering automated campaigns and data-driven workflows across 17+ countries.

You’ll work on backend architecture, improve performance and scalability, build integrations with external APIs/CRMs, and influence technical direction with ownership over your code. This role is remote-first with flexible work and competitive senior-level compensation.

Remote (EU timezone friendly) | We work via B2B, or employment in Norway or Germany

Modern stack: PostgreSQL, Sidekiq, RabbitMQ, AWS, Docker, GraphQL

Join a low-ego engineering team with real product impact

Apply or share with someone who’d love working on complex backend challenges: https://careers.staffer.ai/jobs/7247377-remote-senior-ruby-o...

CrazyGames | https://about.crazygames.com/ | REMOTE (in Europe) | Full-time | Multiple roles

With recent technologies such as WebGPU and WebAssembly, the browser is quickly becoming a powerful gaming platform. High-quality 3D graphics and near-native level performance are now possible without the need for downloads, apps, or platform-specific development. Our browser games platform is already reaching 50 million people per month. We are self-funded, profitable, remote-first, and fast-growing.

We are currently looking for multiple people to bring our engineering, product, data, and adops to the next level.

Please note that we're looking for people who can work on a European timezone and are ideally based in Europe (which includes the UK for those in doubt).

* Product Engineer: https://crazygames.recruitee.com/o/remote-product-engineer-3

* Product Manager (Game Experience): https://crazygames.recruitee.com/o/remote-product-manager-ga...

* Product Director (Monetization): https://crazygames.recruitee.com/o/remote-product-director-m...

* Programmatic Manager: https://crazygames.recruitee.com/o/programmatic-manager

* Product Marketing Manager: https://crazygames.recruitee.com/o/remote-product-marketing-...

* Graphic Designer (Marketing): https://crazygames.recruitee.com/o/remote-graphic-designer-m...

LiveEO | Senior ML Engineer | Berlin, Germany | Hybrid | Full-time

LiveEO leverages high-resolution satellite imagery and AI to provide actionable insights across industries—like protecting power grids, monitoring critical infrastructure, and ensuring deforestation compliance.

We are looking for a Senior ML Engineer to build and scale multitemporal, multimodal computer vision models for Earth observation. You’ll combine optical and Synthetic Aperture Radar (SAR) data into robust representations. This role is a true balance of applied research and engineering: you’ll own the full ML R&D lifecycle from data standardization and SOTA model development to rigorous evaluation and production-grade delivery.

Tech Stack: Python, PyTorch/Lightning, Databricks, MLflow, Ray, Prefect, AWS, Geospatial stack (GDAL, Rasterio, GeoPandas, STAC), PostgreSQL.

What we're looking for:

* Strong Python engineering and deep PyTorch/Lightning experience.

* Proven experience implementing and training deep learning models at scale.

* Hands-on experience with satellite imagery (optical & SAR strongly preferred).

* Strong CV fundamentals (representation learning, supervision, evaluation) and ML experimentation (Databricks/MLflow).

* Pragmatic mindset: you can take SOTA papers to validated baselines and production under real-world constraints.

Must be living in or willing to relocate to Berlin. This role requires German/European citizenship due to legal/regulatory requirements.

(Bonus points for experience with large-scale geospatial foundation models, VLMs, or distributed compute with Ray).

Apply here: https://liveeo-gmbh.jobs.personio.de/job/2540514

Glitch is building the AI agent for Advertising

Glitch creates Ad Campaigns 10x faster than a human that perform 5 times better. Even if the human uses AI.

We need Engineers who want to tackle hard problems like treating the real world as context for LLMs, understanding markets in a few seconds, and dealing with the complex ML algorithms that underlie digital advertising.

We are a team of 16 and a mix of Startup Hustlers and ex-Google Ads Engineers. We've raised Seed and are doubling our customer base every 6 weeks.

We love Agentic Coders and want people who are building not for today but for what the next model can do. You wont build the app you will build the systems that build the app.

Bonus points if you think Agents can solve design and frontend UI.

Email me @ kingsley @ glitchads.ai

Checkly | Multiple Roles | REMOTE | Full time | https://www.checklyhq.com/

Checkly helps engineers build reliable products by unifying testing, monitoring and observability. OpenTelemetry, Playwright, and Monitoring as Code are our foundation for unifying performance and reliability. In 2024, we raised $20M in Series B funding from Balderton, CRV, and Accel to take things to the next level.

-Senior Software Engineer - Infrastructure (Remote, UTC-3 to UTC+3)

-Staff Software Engineer - Infrastructure (Remote, UTC-3 to UTC+3)

-Engineering Manager - Infrastructure (Remote, UTC-3 to UTC+3)

-Enterprise Account Executive (Remote, USA - ET, CT, MT)

See the full descriptions and apply here (and mention HN): https://jobs.ashbyhq.com/checkly?utm_source=hn