On Time Bride | Remote, Toronto Area | Founding Engineer | NodeJS

On Time Bride is an innovative wedding planning platform built for couples, vendors, and planners who are done with spreadsheets and chaos. We’re building adaptive timelines, intelligent task management, and a marketplace that fixes the biggest inefficiencies in the wedding industry. We’re in early growth mode, post-MVP, and scaling fast across Canada.

We're looking for our first engineer to take over development from our outsourced team, and help build OTB to reach the next stage of success. The role is fully remote, but we want people local to Toronto for ease of in-person meets in the early stages.

Check out the link for a full job description and application instructions.

https://www.ontimebride.com/careers/founding-engineer-remote...

Parts Order | CTO | REMOTE (US/Canada + Europe)

We are building AI-powered spatial audio tools that make Dolby Atmos mastering accessible to artists, labels and engineers. Seed-stage, fully remote (PT to CET).

Looking for a hands-on CTO to ship code and lead a small team (2–3 engineers, growing). You'll build scalable backend services for AI-driven audio processing, integrate DSP/ML models into production and set technical vision.

*Requirements:* - 3+ years managing engineering teams (5–15 people) - Strong Python production experience (5+ years) - Experience with audio/DSP libraries (NumPy, Librosa, SciPy, Pedalboard) - Cloud infrastructure and ML ops (AWS/GCP) - Passion for music and audio

*Comp:* $180K–$200K + equity + benefits (US-based)

More info at: https://partsorder.notion.site/CTO-26ae2984e582808b8060ec22f...

Holepuch|Remote, Worldwide|Senior Node.js Software Engineer

At Holepunch, we are redefining the internet’s architecture. Our open-source P2P platform, Pear, enables developers to deploy applications directly from their machine to users, creating scalable, decentralized applications without traditional server infrastructure. We are seeking Node.js Software Engineers to join our 100% remote, globally distributed team. You’ll work on our P2P stack, which includes over 1500 public npm modules, and help expand our ecosystem.

Why Holepunch?

- Work on groundbreaking technology that prioritizes user autonomy and privacy.

- Collaborate with a team of thinkers and innovators dedicated to reshaping the digital landscape.

- Contribute to a future where technology serves humanity, not the other way around.

Apply now to join our mission:

https://holepunch.recruitee.com/o/p2p-nodejs-engineer?source...

https://holepunch.recruitee.com/o/senior-node-engineer?sourc...

Matcha.fm | Founding Growth Fullstack Software Engineer | REMOTE (Canada, Europe, UK, US)

I’m a repeat founder now building Matcha.fm

I’m hiring a cracked Founding Growth Engineer to build virality directly into the product and drive 100x user growth.

This is a true 0→1 founding role with massive ownership:

- Build virality loops into the core product - Proven track record driving significant user growth - Founder or early founding-team experience comfortable in early-stage chaos and high ownership - Strong product intuition and design sensibility - Strong SEO / GEO a plus

Tech stack: - React, Next.js, Postgres

Comp: Up to 20% equity Location: Fully remote (Canada, Europe, UK, US)

Apply : https://matcha.fm/apply/segrowth/hn

Arenko (energy transition/batteries and renewables) | London, UK | 2x/week in office

We work on industrial/grid-scale batteries and other renewable generation: monitoring, managing and trading them on multiple energy markets. Batteries like these: https://en.wikipedia.org/wiki/Battery_energy_storage_system Everyone starting from the C-suite is passionate about addressing climate change and transitioning to renewable energy!

We're a small team of 7 backend engineers atm (other teams have Ops, FE and DS roles). We have paying customers and have been around for 10 years. Our current goal is to make the platform more scalable to deal with the customer growth and move to new markets. The biggest challenge is understanding how the various energy markets and energy storage in general work and then translating that to reliable working software.

We're currently looking for a Senior Backend Engineer (Go). Our office is in London Blackfriars and most engineers come in about 2 days a week, but this is flexible.

Feel free to message me with any questions or apply directly:

https://arenko.bamboohr.com/careers?source=hn

https://arenko.group/careers/

Flok Health | Engineering (systems/Rust, full-stack/Python/TS, Data) | ONSITE Cambridge UK

Flok builds and runs automated physiotherapy clinics in the UK. Here's an article about us on the BBC: https://www.bbc.co.uk/news/articles/cy4y9xm1eejo

We’re a real clinical service, using a novel DSL, interactive video UI, and other software to scale our patient capacity. We provide treatment for (chronic) back pain, and soon, other common conditions. Flok is both a clinic and a consumer product company, so we can learn fast and perfect the patient experience.

Our core languages: Python, Typescript, Rust.

Read more and apply at https://www.flok.health/careers/engineering-team or find me online and DM me! We're on-site only, in Cambridge.

SEEKING REMOTE UI/UX DESIGN OPPORTUNITIES Location: India Remote: Yes Willing to relocate: Open to discuss Technologies: Figma, Canva, Figjam, Notion, Miro, Visily, Maze, Jitter, Asana, AI, Framer, Wireframing, Prototyping, Mockups, Microinteractions, User Research, Competitive Analysis, User Flows, UI Design, UX Research, Product Management, Jira, Lottie Animations

Portfolio: https://anshimasainiproduct.framer.website/

Email: sainianshima@gmail.com

I'm a Product designer and manager looking for remote opportunities anywhere. Feel free to check my portfolio website.

Modall | Frontend Developer (React/Next.js) | Uxbridge, ON (Greater Toronto) | On-Site | C$60-80k

We're a 5-person dev agency building AI, Web3, and SaaS products for startups, NFL players, and enterprises.

Stack: TypeScript, React, Next.js, Tailwind, React Native | Node.js, Prisma, PostgreSQL

The work: You'll ship pixel-perfect UIs from Figma designs, make architectural decisions, and see your code go into production for real clients. No legacy maintenance, just greenfield builds.

Strictly on-site (Mon-Fri, 9-5:30pm) because we believe in high-bandwidth collaboration. No remote.

Outside of client work, we also incubate internal SaaS products. Team members can contribute to these projects outside regular hours for equity if interested.

Apply: https://modall.breezy.hr/p/552471e37316-frontend-developer-r...

Kredit | .NET Engineer Roles | Remote (US) | Full-time

Kredit (https://www.kredit.fyi) is on a mission to resolve consumer debt. We help people get out of financial hardship and offer tools for companies looking to manage their internal processes. Kredit is a small team and growing.

Our stack: .NET Core, C#, PostgreSQL, CQRS, Angular, GCP, Kubernetes, Terraform and much more.

We are looking full-stack engineers that have a .NET background, eager to learn and motivated to work in a startup.

If this sounds interesting to you, please reach out to recruiting at trykredit.com

PermitFlow (YC W22) | Staff, Fullstack & Frontend Software Engineers | New York, NY | ONSITE | Full-time | https://permitflow.com

PermitFlow’s mission is to streamline and simplify construction permitting in the $1.6 trillion United States construction market. Our software reduces time to permit, supporting permitting end-to-end including permit research, application preparation, submission, and monitoring.

We recently raised a $54M Series B led by Accel with participation from Kleiner Perkins, Felicis, Altos Ventures, and YC.

Permitting is a challenging yet interesting problem; thousands of municipalities across the United States have their own processes and requirements - many which are continually updating. Software, AI, and LLMs provide an exciting opportunity for us to reason at scale and distill a nuanced and localized permitting process into a standard and streamlined experience for our customers.

We're looking for customer-obsessed, ambitious, and hard-working teammates who are excited about solving a real-world problem with technology at its helm.

NYC Onsite Roles | apply at: https://jobs.ashbyhq.com/permitflow?departmentId=d33195eb-89...

1. Staff Software Engineer - $200K-275K + equity

2. Fullstack Software Engineer - $125-240K + equity

3. Senior Frontend Engineer - $125K-240K + equity

https://permitflow.com/hiring

Cardog | Toronto | Full Stack Engineer | In-person

We build automotive software. We work with dealerships on ad-hoc projects, websites, and pricing tools. We also run consumer facing products - a web app for vehicle shopping, research and market data, and a mobile app.

Right now we're building EV battery health diagnostics - connecting to a car's BMS over CAN bus, pulling cell voltages and state of health, generating reports. Mix of hardware and software.

Small company with real clients and real revenue. One engineer. Looking for a second who wants to own things e2e.

hello[at]cardog{dot}app

Shorebird | Mid-Senior Backend/Cloud Engineer (Dart) | REMOTE (North America) | Full-time | $150-220k + equity + benefits | https://shorebird.dev

Flutter/Shorebird founder here. Flutter is used by millions of devs (and nearly ⅓ of free apps submitted to AppStore), but is missing services for businesses. We offer Flutter-related SAAS used by 1000s businesses globally, on track to profitability mid 2026.

We serve 100s of millions of devices from our cloud, (2k+ RPS sustained), built mostly in Dart on Google Cloud + CloudFlare. We’re in the process of launching a series of CI offerings and have a lot of cloud development work ahead of us. You need production cloud experience, want to work at a startup, and be up for the challenge of owning, developing, and expanding Shorebird’s cloud infrastructure and backend services including code, configuration, architecture, and more. Previous Dart experience is not required.

We’re a small, senior team, making something people want. Tech: GCP, Cloudflare, Dart, Postgres, a little React & Node. Shorebird operates almost entirely in the public over Discord. https://discord.gg/shorebird

https://shorebird.dev/jobs

US CAISI | 12+ technical roles | all seniority levels | onsite SF/DC | Full-Time | $190k | US citizenship required

We are a key center of AI expertise within the US government, and are hiring programmers, ML engineers & scientists, and more. I've found the past 13 months working here impactful and rewarding.

The Team: We have a unique concentration of talent in USG, including former frontier lab technical staff, folks from MIT/Berkeley/Harvard ML PhD programs, world-class cyber & bio experts, and a Y Combinator founder of multi-million dollar startups. Our staff has previously co-invented RLHF, discovered the reversal curse, and built Inspect and RStudio.

The work: Developing AI capability and security evaluations (e.g. cyber capabilities, agent hijacking, backdoor detection), red-teaming, and briefing leaders across government. Our mandate includes monitoring frontier AI for national security risks.

Apply here: https://www.nist.gov/caisi/careers-caisi (first posting closes Feb 17)

LiveKit | Remote | [Livekit.io](http://livekit.io/) | VoiceAI | webRTC | Real-time communications

LiveKit is defining a new paradigm for now applications are built by providing the framework and network infrastructure for voice, video, and physical AI.

Hiring:

>> Senior Software Engineer, Agent Platform: https://jobs.ashbyhq.com/livekit/f152aa9f-981c-4661-99d3-683...

>> Senior Software Engineer, Agents:https://jobs.ashbyhq.com/livekit/1757f49e-7e19-4c45-85f7-e46...

>> Senior SDK Engineer, Android:https://jobs.ashbyhq.com/livekit/62076f79-698c-426e-b4fa-8e1...

What we are looking for: Builders!!!!

>Passion for building something truly impactful

>>Remote company, first principles, global presence!

Co-founders:

Russ d'Sa, CEO and Cofounder: https://www.linkedin.com/in/russelldsa/

David Zhao, CTO and Cofounder:https://www.linkedin.com/in/davidzhao/

x2A | NYC, NY, USA | ONSITE | https://x2a.tech

We are actively looking for multiple software developers or software engineers to join our team (in the office, 5 days/week). These positions primarily focus on our 5off software product (puzzles/games).

There is zero expectation for you to be proficient in all aspects of the tech stack. We are looking for people who know some of these technologies and are excited to share their expertise while developing their skills and learning new things.

We welcome candidates at any experience level, with or without academic qualifications. For junior candidates, do not hesitate to share related personal projects.

Tech stack:

  - Languages: Python, Typescript, Swift, Rust, C++.
  - Backend: SQLAlchemy, PostgreSQL, Litestar.
  - Frontend: Svelte, Tailwind.
  - Mobile: Swift, SwiftUI.
  - Cloud: AWS, AWS CDK.
  - DevOps: Gitlab.

Compensation: 115k-170k based on experience and skills.

More https://x2a.tech/careers/openings/ for more details and how to apply.

EnsoData | Mobile Engineer (React Native/Typescript) | Full-time | Hybrid (Madison, WI) or Remote (US)

EnsoData strives to make healthcare more accurate, efficient, and affordable through waveform artificial intelligence (AI) technology. Using AI and machine learning, our software analyzes billions of data points collected from sensors placed throughout the human body.

We are seeking a mobile engineer who is passionate about making healthcare better and has experience building React Native Typescript apps.

Looking for 5+ years full time experience working with a team building React Native Typescript apps for iOS and Android.

Actively hiring - please apply at https://apply.workable.com/ensodata/j/8E07E794DF/ - we would love to hear from you!

Microsoft AI | Platform Engineering | Full-time | Seattle, WA or San Francisco Bay Area | ONSITE (4 days/week)

We're building the platform primitives that power https://copilot.com (Microsoft's ChatGPT). If you've shipped systems at scale—whether backend services, distributed infrastructure, ML platforms, or consumer AI products—we want to talk to you.

The work: design and build secure, performant platform services for AI at scale; collaborate with infrastructure, product, design, and research teams; ship high-quality code that reaches hundreds of millions of users; move fast in a design-driven environment.

You: solid fundamentals in systems thinking and software engineering; fluent in Python, C#, C++, Java, JavaScript, or similar; shipped real products or systems people use; can communicate across technical and non-technical teams.

Compensation: Competitive with other frontier AI companies, commensurate with experience

We're actively hiring and will respond to applicants. Check https://microsoft.ai/careers for current openings, or email maiplatformjobs@microsoft.com if something specific doesn't fit the bill. Apply directly if genuinely interested in building the future of AI.

control-f | Data Engineer (pyspark, databricks) | Full-Time | Remote (GER)

Wir bei control-f sind echte Daten-Nerds und bauen Big Data Plattformen für Telemetriedaten in der Industrie. Wir suchen jemanden, der Lust hat, mit uns gemeinsam aus Daten-Chaos smarte Lösungen zu machen. Wenn du Spaß daran hast, mit PySpark und Databricks richtig große Datenmengen zu bewegen und dabei technische Herausforderungen nicht scheust, dann bist du bei uns goldrichtig.

https://www.controlf.io/jobs-1/data-engineer-(m%2Fw%2Fd)

Onja | Full Stack Developer, Course Design & Back-End Developer, Course Design | Full-Time | ONSITE - Madagascar

Looking to join a social-impact driven company? Are you a software developer ready to use your skills for good? Onja trains underprivileged youth into world-class software developers. We are on the lookout for Course Designers who can help our students go from ‘what is coding’ to working in Global tech teams.

Help build a scalable course that will help train Madagascar’s brightest young people, while working alongside a team of talented, fun colleagues from all over Madagascar and the world.

Please apply through the following links: Full Stack Developer, Course Design: https://onja.org/careers/full-stack-developer-course-design

Back-End Developer, Course Design: https://onja.org/careers/back-end-developer-course-design

Pepr AI | pepr.ai | Onsite in San Francisco | Full-time | Multiple roles | $140-$270K based on role/experience | Visa Sponsorship | Relocation

We are building the AI Operator for growth to replace traditional ad agencies. We apply quant rigor of high-frequency trading to optimize ad spend, delivering 20-50% upside in spend efficiency. We manage spend for global category leaders like Cider and Cupshe with a clear path to managing billions of dollars. We are backed by Quiet Capital and are hiring for multiple engineering roles: - Member of Technical Staff, Full Stack - https://pepr.ai/careers?ashby_jid=6025c6f4-3b72-4dc6-8a2c-fa... - Member of Technical Staff, Machine Learning & Optimization - https://pepr.ai/careers?ashby_jid=baf0e7ac-164f-4f1d-9938-de... - Member of Technical Staff, Product (ML) - https://pepr.ai/careers?ashby_jid=e6d130a7-29c0-420d-b954-ba...

Please write to us at founders@pepr.ai

Shaswat, co-founder & CEO