CIONIC | Senior Software Engineer - Infra/Server/Web | Remote (US) or in-person San Francisco / Philadelphia

At CIONIC, the work you do today will help someone walk tomorrow. We're building bionic clothing that can analyze and augment human movement, enabling the body to move with more freedom and control. In addition to being lightweight and durable, our system is driven by powerful algorithms that adapt in real time to each individual's mobility needs. Learn more about the impact we're making by watching a user testimonial here: https://www.youtube.com/watch?v=wpfEQXFgThc

And get a closer look at our product by checking this link: https://www.youtube.com/watch?v=Jb4ZF6aadTI

Find more information about the role here: https://cionic.com/srvdev

When you're ready to apply, email us at hiring@cionic.com. We look forward to hearing from you!

Mobian | https://themobian.com/ | Senior Software Engineer | REMOTE

Mobian is a new venture from the founding team behind Moat (acquired by Oracle), reimagining brand safety, contextual intelligence, and targeting in digital advertising. We leverage advanced AI and LLMs to analyze content—across text, image, audio, and video—for sentiment, tone, risk, theme, emotion, and more. Our signals power both measurement and media activation, helping brands and publishers identify and target high-quality, high-impact content with precision. Seeking Senior and Staff Full-Stack individual contributors and DevOps talent. Backend development (Python, APIs, cloud infra) and front-end work (React or similar, client-side JS tags).

Ideal candidates have 10+ years of experience, a self-starter attitude, strong coding skills, and deep familiarity with cloud infrastructure.

We are an early and lean team. Reach out @ careers@themobian.com

Cyberus Technology | https://cyberus-technology.de | Software Engineer | REMOTE (Germany, Spain, Canada) | Full-time

Our mission is to build open-source digital infrastructure that stands the test of time. We engineer modular, transparent and reproducible software that “just works,” empowering organisations to run critical systems safely for decades.

Guided by science, data and a deep respect for democracy and human rights, we act as a trusted, family-friendly partner for both customers and teammates. We contribute actively to local, national and global open-source communities while continuously shrinking our environmental footprint. Lean processes, smart automation and sustainable profitability keep us independent—and ready to collaborate for the long run.

CtrlOS is our long-term supported downstream version of NixOS, and it’s a strategically important project for our organization. It forms the foundation for a wide range of customer solutions and internal systems. Building and maintaining CtrlOS is not only technically exciting — it’s also a rare opportunity to bring NixOS to a whole ecosystem of devices.

We’re looking for someone who brings energy, curiosity, and a strong drive to get things done. You don’t need to know everything — none of us do — but you should be excited to explore new territory, solve real problems, and help shape something meaningful.

If you’re interested please e-mail us at jobs@cyberus-technology.de

Cosuno | Senior Full Stack Developer (TypeScript) / Senior Machine Learning Engineer – Generative AI | Remote (EU) / Berlin | Full-time | https://www.cosuno.com

Cosuno is a fast-growing tech startup revolutionizing the construction industry with our digital platform for tenders and procurement. We use AI to analyze millions of price data points, helping construction companies create precise and efficient bids. We're looking to expand our team with creative minds who want to solve real-world problems and reshape a massive industry. We are an open-minded, collaborative, and international team.

We're hiring for two key senior roles:

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Senior Full Stack Developer (TypeScript)

Location: Remote (EU) / Berlin

Stack: TypeScript, React, Node.js, Cypress, Kubernetes, AWS

Mission: Take full ownership of features on both the frontend and backend of our product. You'll have the responsibility to extend and build upon our platform to make it more valuable, reliable, and maintainable. We value a trunk-based development workflow with daily releases, comprehensive end-to-end testing, and a solid CI/CD pipeline.

You have: 5+ years of hands-on engineering experience, substantial expertise in JavaScript/TypeScript, and experience with Node.js (React is a plus). You thrive in an agile environment and have a pragmatic, startup mindset.

---

Senior Machine Learning Engineer – Generative AI

Location: Remote (EU) / Berlin

Mission: Own end-to-end ML workflows from data ingestion to production deployment. You will dive deep into core application domains like price prediction, two-sided market design (ranking/recommendations), or agentic workflows using state-of-the-art LLMs. A key part of your role will be establishing and enforcing MLOps and LLMops best practices.

You have: 5+ years of ML engineering experience, with at least one year working with LLMs. You possess strong Python skills, a proven track record of deploying containerized services (Docker, Kubernetes), and deep expertise in at least one of the following: deep learning (PyTorch, Transformers), ranking/matching algorithms, or LLMops (RAG, evals, fine-tuning).

Interested? To apply and for more detailed information, please see the full job descriptions on our careers page: https://www.cosuno.com/en/company

BubblyDoo | https://bubblydoo.us | Full-Stack Software Engineer | Onsite (Antwerp, Belgium) | Full-time | €60k+ with meaningful %

At BubblyDoo we believe the future of children's books will be personalized. We are on a mission to enable this worldwide, using our platform and website. We sell our products in 16+ countries, in many languages. In 2024 we were the 9th fastest growing tech company in Belgium.

We’re hiring a Full-Stack Software Engineer (3+ years of experience) to be the right hand of the CTO.

We’re looking for a highly autonomous person that understands the priorities of a startup and can balance nice to haves with company priorities.

This role includes working on various parts of our code and being fully responsible for implementation of new features, integrations, bugfixes, research, planning, etc throughout the whole stack.

Our stack includes TypeScript, Next.js on Vercel, Cloudflare Workers, tRPC. Common tools include PostHog, Klaviyo, Grafana, Fivetran.

If you’re interested, please email me at hansottowirtz@bubbly-doo.com

Hi there,

I'm Nikunj Makwana, a full-stack developer. I work with Next.js, React, TypeScript, Tailwind, Express, Prisma, Postgres, MongoDB, and Solana wallet adapter to build fast, scalable apps end-to-end.

Portfolio site: https://nikunj-portfolio.vercel.app/ GitHub: https://github.com/Nikuunj LinkedIn: https://www.linkedin.com/in/makwana-nikunj/

If anyone here knows about any opportunities in frontend or full-stack development (remote preferred), please let me know.

Thanks, Nikunj

WunderGraph - Senior TypeScript Engineer (Library & Algorithm Focus)/ Staff Platform Engineer/ Staff Full Stack and Staff Backend Golang Engineers- REMOTE-EMEA

We are a remote first, global, series A start up, backed by eBay to continue innovation in the API Management Space.

Currently 25 people, we are deeply engineering and technically focused. We are building an open sourced, dev tool, and looking to bring into our team people passionate about building the future of API management:

Senior Typescript Engineer: https://wundergraph.com/jobs?ashby_jid=97443b40-84cd-4d9e-85...

Staff Golang Engineer: https://wundergraph.com/jobs?ashby_jid=4eb93ad5-d1d0-4a11-8a...

Staff Platform Engineer: https://wundergraph.com/jobs?ashby_jid=d8608bb4-eef7-4b43-b0...

Compensation: 90-110k EUR for Seniors, 100k-130k EUR Staff Engineers, adjusted for location.

We meet for hackatons and in person collaboration once every 3 months.

Culturally, these opportunities would fit someone that prefers to work in a no BS culture, highly collaborative and fast moving company, with big scope for impact, and supportive leadership.

Manifesto: https://www.notion.so/wundergraph/Mission-and-Core-Beliefs-2...

Please apply if you believe we can grow together.

The Bancorp | REMOTE (US) | Full-time | VP, Embedded Finance Developer

Salary Range: $120,762 - $184,011

This role will be responsible for integrating third-party API's into our system. Prior experience with PCI DSS (Payment Card Industry Data Security Standard) is a plus, but not a requirement.

- Apply at https://careers-bancorpbank.icims.com/jobs/6027/embedded-fin...

- If you want a referral, email soorho [at] thebancorp [dot] com and include "HN" at the subject.

Grata | Full time - Hybrid NYC | Python, Django, Databricks, AWS, PostgreSQL | grata.com

Grata the leading private market dealmaking platform. We're a well-funded, fast-growing fintech.

We're looking for ambitious engineers who want an opportunity to have direct customer and revenue impact. We're solving exciting, interesting engineering problems and having a great time while we do it. We value ownership, growth mindset, and enthusiasm.

We're hiring: - Entry-level engineers across disciplines! - Engineering Manager - Sr/Lead Data Engineer - Sr AI Engineer - Sr AI Scientist

Interested? Apply here! https://grnh.se/ho3ykkev4us

Lonely Planet | Software Engineer, Backend | Charlotte, NYC, Remote USA | Full-time | Elixir

Do you want to help build the future of travel? Lonely Planet is a trusted, iconic travel brand with over 50 years of experience helping travelers explore the world. Known for our extensive guidebooks, we are now evolving our digital offerings to create innovative, user-friendly travel digital experiences that bring the expertise of our guides into the modern age. Our goal is to revolutionize how people discover, plan, and experience their travel adventures.

As a Software Engineer on the Services team at Lonely Planet, you will join a dynamic, forward-thinking, cross-functional team to design, build, and maintain robust backend systems that power our next-generation travel app. This is a unique opportunity to shape the future of travel technology for a beloved brand, reimagining how millions of people discover, plan, and experience journeys around the world.

More info and apply here https://www.redventures.com/careers/positions/open?gh_jid=70...

Nexamp | Hybrid | Boston | Full-time | https://www.nexamp.com

Do you want to be a part of the clean energy movement? Join Nexamp! We're a fast-paced, mission-based company focused on building a future of energy that is clean, simple, and accessible. We're looking for a Senior Software Developer (Backend or Full Stack) to help build tech solutions to accelerate our sustainable energy future. As a member of the team, you'll build and refine tools for both our customers and internal teams. You'll make an impact by writing quality code, steering projects from conception to completion, and helping refine processes. This is a hybrid role, based out of our Boston office reporting to a Tech Lead.

Tech stack: Python, Django, React, Postgres, Azure

- Backend: https://grnh.se/hf6om9wt2us - Full stack: https://grnh.se/tq4p36vi2us

If you're interested, put an application in on either of the above roles. Shoot us an email at careers@nexamp.com with any questions

CloudTrucks (Hybrid) | FullStack Devs and more | Full-time | Python, Django, PostgreSQL, Typescript, React, GCP

CloudTrucks is a very well funded series-B startup in Trucking domain. Our main goal is to help trucking enterpreneurs make more money and worry less about overheads. We have openings for mid level and above SWE roles. Please note that at this time we're only accepting applications with atleast 3 years of relevant experience. The ones on priority (and every application is being read diligently) are as follows:

1. Software Engineer, Business Platform - https://jobs.ashbyhq.com/cloudtrucks/f0343129-4cb4-4615-98ac...

2. Software Engineer, Growth - https://jobs.ashbyhq.com/cloudtrucks/b18a950c-de7e-4cfd-ab30...

And there are more roles you can apply to at https://jobs.ashbyhq.com/cloudtrucks

Ascend | Senior Software Engineer | ~200k base with meaningful equity | Onsite, SF CA

Ascend is a series A start up with 55 people and a 17 person eng team. We're an onsite company based in SF.

We're looking for Senior Software engineers to join the team.

Our product is an accounting automation platform for the insurance industry. We've grown at rate of 300% YoY and we're not slowing down (:

Check out our careers page to learn more! https://www.useascend.com/careers

Swept (Remote) | Senior Backend Partner | Full-time Contract | Python, Flask, Celery, MySQL, Docker, AWS

Swept is seeking a Senior Backend Partner to lead our core Python/Flask services during a parental leave, with long-term potential. We empower janitorial small businesses, significantly boosting client retention and reducing employee turnover.

This role demands a technical owner who thrives on impact and autonomy. You'll ensure backend stability, drive architectural evolution, and mentor the team.

Key Responsibilities: Own backend stability, project management, critical bug fixes, and feature delivery, strategize AWS architecture, evolve our backend for data analytics, and foster engineering excellence. Who You Are: Proactive, clear communicator, pragmatic, and a natural mentor.

Contact: Dominic Lacroix, Head of Technology, engineering@sweptworks.com

Big Cartel | DevOps Engineer | Remote | Full time We are seeking an experienced DevOps Engineer to join our team full time. Big Cartel is dedicated to empowering the independent seller with affordable e-commerce tools. We are a 100% independent, bootstrapped, tight-knit team dedicated to our mission of aiding individuals and small brands in setting up shop and making a living doing what they love. For more details please check out our job posting and if you are interested apply here: https://bigcartel.recruitee.com/o/devops-engineer

Bond Studio AI |Software Engineer, Backend | NYC or Remote | Full-time Bond Studio transforms the physical world into a real-time 3D environment built for commerce. Our spatial engine leverages state of the art CV+AI tech and is already being used across industries – from boutique stores to Fortune 50 enterprises. We’re currently in stealth, have a team of ~18 engineers, and are backed by Tier 1 institutional investors.

We’re looking for a software engineer to own the creation, design, and maintenance of our backend, infrastructure, and data systems. You'll be at the forefront of applying breakthroughs in LLMs and spatial reasoning to real-world challenges transforming commerce. Join us in an environment that is fast-paced, has little technical debt, and utilizes the latest tech.

Interested? Email us at careers@bondstudio.ai

Synapto | Payments | Remote (EU) | €80-120k + meaningful % | Early-Stage (5 folks)

We're well funded, have a healthy sales funnel, and already processing payments for our customers in production. We're a Java/gRPC/jOOQ shop focused on simplicity, flexibility and quality.

Assorted things to be built: billing (invoices, subscriptions, taxes), split-payments (account boarding, ledgers, payout, etc.), developer tooling (api/webhooks/idempotence/rate limiting/etc).

More info here: https://wellfound.com/l/2BpYRa, please apply with your CV on the link.

Zenact AI | Founding Engineers & Interns | Full-Time + 6-Month Internships | Onsite Bangalore | Location flexible for internships (India)

Tech: Golang • Python • AI Agents

At Zenact AI, we are building AI agents that test apps like real users. I personally faced this problem at Zomato for over 6 years while handling many bugs and incidents.

We launched recently and already got 35+ signups from leading unicorns & soonicorns in India.

Backed by the Zomato mafia.

Team comes with deep expertise from Zomato’s scale journey.

Roles:

Founding Engineers.

Interns (6 months). Must’ve built serious projects or freelanced early in college.

You’ll work on:

* Building the platform from the active feedback from the customers, with heavy focus on improving the end to end latency of testing.

* Fine-tuned vision & reasoning models (currently 92% accuracy vs SOTA ~60%)

* AI agents for mobile testing, reasoning flows.

Apply: shoot a mail to sri@zenact.ai or fill form here: https://forms.gle/yWproMowhA4ZF4gv6

Pocketflows | Founding engineers | Full time | In person - San Francisco, CA | www.pocketflows.com | Comp: 180k - 225k

Want to build AI that will impact SMBs in real-life industries that power the backbone of our economy? Come join Pocketflows - we help SMBs grow by offering a marketing platform embedded inside the software they already use today.

We've signed on and launched with incredible SMB platforms. You'll have the opportunity to build important workflows that help hundreds of thousands of SMBs

Founders have prev built out both frontier marketing products (Qualified) and embedded API products (Stytch, Gusto Embedded)

We’re both from the midwest and are huge believers in main street businesses (our end users at Pocketflows). Long before our tech careers started, our first jobs were at mom & pops' in our hometowns!

Well-funded by investors who believe in our mission and SMB tech, and an incredible network of angels & advisors who have built and scaled SMB tech platforms

More info here: https://ext-pocketflows.notion.site/

Proof (Defend team) | Senior Software Engineer (full-stack) | Remote (US timezones)

Proof is a digital trust platform. We do online notarizations, e-sign, KYC, identity network, PKI. Defend team is building advanced fraud detection and prevention service for use across the platform. Proof is a 10 year mid-size startup with solid history, collaborative culture, hundreds of customers and millions of users across all verticals.

Stack: Ruby on Rails, React, GraphQL, AWS

https://jobs.lever.co/proof/ee82bcf8-d3c6-4740-8a9e-bd1e5dc9...