Saypien | Berlin, Germany | REMOTE (Europe) | Full-time

We're building an AI-native SaaS platform that helps companies extracting actionable insights from data in real-time. Think of it as an architectural intelligence layer that ingests heterogeneous data, learns your business context, and delivers decision-ready guidance.

Tech stack: Next.js, React, TypeScript, PostgreSQL, Redis.

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Hiring for two roles:

Software Engineer (Full Stack) - €60-157k (incl. Bonus) | Equity

You'll build and optimize our web platform end-to-end, work closely with AI, Product, and Design. Strong Node.js, PostgreSQL, React/Next.js. Experience with LLM integrations is a plus.

AI Product Engineer (Full Stack) - €70-169k (incl. Bonus) | Equity

More senior role bridging product and engineering. End-to-end feature ownership, customer feedback integration, shaping product direction while shipping production code.

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Small team, real customers, fast iteration cycles, shipping.

Apply: https://work-at-saypien.jobs.personio.com

Channable | Utrecht, Netherlands | HYBRID

Channable is a fast-growing B2B SaaS platform that offers a fully integrated way to market your products online. We empower marketers and online businesses to manage, scale, and optimise their marketing.

We're looking for a Python Software Engineer to join us! For more information, please check the job description: https://jobs.channable.com/o/python-software-engineer-pip

We use the following technologies and tools: Python (3.13), PostgreSQL, pydantic, sqlalchemy, typing, requests, logging, flask, fastapi, pytest, mypy, ruff, Sentry, Prometheus, Grafana, Loki

Do you want to read more about our engineering culture? Then have a look at our popular tech blog: https://tech.channable.com

Additionally, you can also take a look at some of our open-source work at https://github.com/channable to get a feeling of how we work together and what our code looks like.

Please note that candidates are required to be located or willing to relocate to the Netherlands. We work on a hybrid policy, and we go to our beautiful office in the city center of Utrecht twice per week.

Langdock (YC S23) | Product Engineers (Full-stack), Infrastructure Engineers, AI Associates | Berlin, Germany ONSITE | https://langdock.com –

We're Langdock, and we've built the LLM platform that 2,000+ companies trust to power AI features for 100,000+ users. After hitting $10M+ ARR with >10x year-over-year growth, we're expanding our Berlin team to shape the next chapter of conversational AI.

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Product Engineer (Full-stack) | Total Compensation (incl. Bonus) €80K – €156K | Equity

Build product features from conception to deployment, collaborating closely with our CPO and working across the entire tech stack to deliver AI-powered features that drive enterprise adoption.

Stack: NextJS, React, Prisma, Postgres, Redis

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Infrastructure Engineer | Total Compensation (incl. Bonus) €80K – €156K | Equity

Contribute to our deployment infrastructure and lead integrations with customer cloud environments. You’ll work hands-on with the latest cloud and container technologies, ensuring our platform runs reliably and securely for some of Europe’s top enterprises

Stack: Terraform, Azure, AWS, GCP, OpenShift

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AI Associate | Total Compensation (incl. Bonus) €80K – €100K | Equity

Three-month rotational program with a pathway to high-impact commercial roles. You’ll join a cohort of technical, customer-facing talent who build deep product expertise and commercial acumen from day one.

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Check out our jobs page here: https://jobs.ashbyhq.com/langdock

Join (https://join.build) | REMOTE (US & Canada) | Staff Software Engineer (full-stack)

I’m Head of Engineering at Join, building SaaS for construction teams (contractors, owners, architects). We’re hiring two full-stack web staff engineers to help build our React + Go + Postgres collaboration platform and lead technically. Full-stack interest is preferred and at least one of those hires needs to have deep frontend expertise.

Details are at https://www.linkedin.com/jobs/view/4340165013/

Salary is $175k–$205k + equity + full benefits, fully remote.

Email resume and a snapshot of your writing style (preferably a PR review) to mark.deutsch@join.build.

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.com/sw-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

Pliant / Backend Engineer / Engineering Manager / Remote (EU) / Full-time

Pliant is rethinking corporate credit cards. Since 2020, we’ve been empowering companies to scale with modern virtual and physical card issuing, automated payment flows, real-time spend tracking, and a clean API that plugs directly into their finance stack.

Our tech stack: Java/Kotlin, Spring Boot 3, Postgres, Kafka, AWS, Terraform.

Our culture: low-ego, no-bullshit, high-ownership. Empowered product teams working closely with strong PMs. Pragmatic, impact-driven engineering. “Getting sh*t done” mindset encouraged.

If this sounds like your kind of place, reach out directly to me (Head of Engineering): rajat.parida@getpliant.com

or apply here: https://www.getpliant.com/en/careers/

Multiply | Python + SQL Software Engineer | On-site | Mauritius

We build repricing software that keeps online sellers on top of their competition on 130+ marketplaces.

Stack: Python, Postgres, FastAPI, SQLAlchemy.

Our office is beautifully located in Mauritius. We sponsor visas and handle all relocation/immigration.

Apply: jobs@multiply.cloud

Twing.AI | AI/Full-Stack Engineer & Forward Deployed Engineer | Remote (US-friendly timezones) or NYC | Full-time or Part-time

We’re a lean (4 people, 3 of which are engineers), bootstrapped team building a private-equity automation platform (deal analysis, document processing, chat, investment theme research). Shipping fast, learning daily, and looking for hands-on engineers who want outsized impact.

- Stack: React Router 7/React 19, shadcn/Tailwind v4, Node/TypeScript (strict), PostgreSQL + Prisma + pgvector, S3; AI workflows with embeddings & LLMs.

- Why join: small team with direct ownership of core product, zero bureaucracy, Greenfield decisions and ability to learn extremely quickly, you’ll ship to paying users weekly.

AI / Full-Stack Engineer

- Own features end-to-end: data ingestion → AI pipelines → UI. - Design and tune LLM/embedding flows; keep latency/cost in check. - Requirements: strong TypeScript/Node, modern React, SQL + data modeling; comfort evaluating/using AI models; bias to ship.

Forward Deployed Engineer

- Work directly with customers (PE analysts/partners) to turn messy workflows into productized features. - Rapidly prototype, measure impact, harden for production. - Requirements: full-stack chops, great product sense, calm under ambiguity, willing to jump between code, data, and customer calls.

Happy to also talk to the self-taught. We care more about ability than credentials and value slope over intercept.

How to apply: Email jobs@twing.ai with “HN – [Role]” in the subject, a short note on something you’ve shipped, and any links (GitHub/portfolio). No recruiters.

Vividly | Fully Remote | Full Time | Staff Software Engineer

We’re a Series B start up disrupting the consumer goods industry and moving their finance, sales, and ops teams from spreadsheets and onto a modern software platform. We partner with hundreds of well known brands such as Hint, Liquid Death, and Chomps. We're looking for an awesome staff engineer to join our team. Our tech stack is Python, Rust, and Postgres.

https://ats.rippling.com/vividly/jobs/3f505e4e-b81e-4136-bc7...

Haven Headache | Sr Backend Engineer | SF Bay Area | ONSITE 2-3 days/week | Full-Time

We're a digital health-tech startup that operates a virtual-first headache and migraine clinic, making expert care more accessible for the millions of people who suffer from these debilitating conditions.

As part of our team, you'll work closely with our designers, operations and clinical teams to shape the future of telehealth. We've had tremendous success in the limited markets we operate in and are looking to greatly expand our internal team.

We've built our platform using Elixir, Phoenix and LiveView on AWS, with infrastructure as code managed through Terraform and CI/CD via Github Actions. We leverage Postgres for a variety of purposes. Our philosophy emphasizes simplicity and pragmatism and our culture is rooted in empathy, creativity and focus.

See more details and apply here: https://www.havenheadache.com/careers?utm_source=4RbDKozYoE

Lantern | https://withlantern.com | Software Engineers (Python, Full-Stack) | Full time in New York, NY (ONSITE)

Lantern is building AI-powered revenue intelligence—think autonomous agents that turn cold outreach into warm conversations. Our platform automatically detects buying signals across your tech stack [1], prioritizes opportunities, and helps B2B sales teams focus on deals that actually close. We're an agentic-first startup building with Python, BAML, FastAPI, Next.js, and React, backed by a modern data stack (Postgres, ElasticSearch, ClickHouse, DuckDB). We deploy on Kubernetes/AWS and use Temporal.io for workflow orchestration. We're hiring software engineers who want to work on cutting-edge AI and agentic systems. You'll translate complex customer needs into scalable architecture, optimize AI model efficiency through prompt engineering, and ship features that directly impact how revenue teams operate. We value ownership, bold ideas, and people who want to push boundaries.

This role is based in our Manhattan office (4 days/week in-person). We offer full health and dental coverage. Apply here: https://forms.gle/kEi5MDDiaJKdyN3fA I'm Maksym. If you're excited about agentic AI and reshaping B2B sales, shoot me a note at maksym (at) withlantern.com.

ParadeDB | https://paradedb.com | SF Onsite + Remote | Full-Time | Rust Database Engineers

ParadeDB is an alternative to Elasticsearch built on Postgres. We're building a Postgres extension in Rust that offers a new index type optimized for full-text search and aggregate/analytics workloads. We solve three problems with Elasticsearch today:

- Lack of read-after-writes guarantees

- Lack of JOINs

- Infrastructure complexity & cost due to syncing Postgres and Elastic.

We're open-source, and our repository is available at https://github.com/paradedb/paradedb. We're a Series A team of 8 distributed across the US and Canada. Most folks on our team have 10+ years of experience in database internals at companies like Twitter, MongoDB, Oracle, Instacart, etc.

You can find our roles and the profiles of our team members here: https://paradedb.notion.site

If you know Rust and/or have experience working on DB internals and want to work on cool systems problems, shoot us a note. We hire with conviction, have lots of room to grow, and exciting technical problems to solve. My email is phil@paradedb.com.

Anvara | https://www.anvara.com | NYC Onsite + Remote | Full Time | $200K USD+, + equity | SWE, Senior SWE

Anvara is a marketplace for sports and entertainment sponsorships. We connect brands like Snapchat, Delta, and Kalshi with sports teams and entertainment rightsholders like the Knicks, LAFC, Coachella, local marathons, and more - to close sponsorship deals. We take a fee on deals.

We're looking for hungry, scrappy, technical engineers to help build out the next phase of our product: paid subscriptions for brands, unlocking ROI forecasts and valuation insights.

Technical: React/Typescript/Postgres

This is a highly technical product wrapped in a beautiful and carefully architected user experience. You will work with pro sports teams, entertainment companies, CMOs, and brand marketers. We are building the Bloomberg Terminal of brand sponsorships.

You will be one of six engineers and growing. We are based in NYC. We expect onsite work with remote flexibility sometimes too.

Come join us. Email me directly - nick@anvara.com.

Ezra | Principal Engineer (Full-Stack) | US REMOTE | Full-time

Ezra is a venture-backed startup building at the intersection of finance and artificial intelligence. We're building a platform to accelerate capital deployment into world-positive investments.

I'm Rob, the CTO, and we're looking for a technical leader and IC (12+ years exp) to own our backend architecture and implementation. You will be bridging traditional backend services with AI agents and inference systems, ensuring reliability at production scale. This is a high-autonomy role for someone who thrives in early-stage environments. You'll be working with other high performing engineers who will each own key components of our system.

The Role:

Drive architecture for Python-based backends (Django/FastAPI) and AI inference systems.

Build agentic AI workflows (retrieval strategies, eval sets) using OpenAI/Anthropic/LlamaIndex/Langchain.

Own features end-to-end, from system design to React/Next.js frontend implementation.

Stack: Python, Django/FastAPI, React, Next.js, AWS (RDS/Postgres, Terraform), Vector stores.

Contact: Email me directly at robert+hn25@ezra.fi with your resume, or apply here: https://www.ezra.fi/careers/principal-fullstack

Nova Credit | Remote (US, Canada)

We're building a unified platform for credit and financial data to power financial inclusion globally. Our mission is to unlock economic opportunities for consumers historically excluded from traditional credit systems by transforming diverse data into actionable risk insights. We are YC company backed by investors from Canapi Ventures, Kleiner Perkins, General Catalyst, and Index Ventures

-> Hiring software engineers from Mid-Level to Staff

-> Tech stack: Node.js, React, TypeScript, Python, PostgreSQL, AWS

You'll work on enterprise-grade APIs, data integrations, advanced analytics, and seamless user experiences. We're looking for engineers who thrive in fast-paced environments and want to make a meaningful impact on financial inclusion.

Apply at https://job-boards.greenhouse.io/novacredit and mention HN.

Perpay | Senior Full Stack/Backend Engineer + Engineering Manager | Onsite in Philadelphia, Full-Time

Perpay, a certified B-Corp, is the most meaningful growth-stage startup in Philadelphia. We’ve spent the past decade growing from an early idea to achieving strong product market fit, and becoming one of the fastest-growing fintechs in the country as we march toward half a billion in revenue. Today, more than 500,000 customers rely on Perpay, and we are driven by this mission that meaningfully improves the financial stability of everyday Americans. We’re in a special moment of building, scaling, and deepening our impact, and are eager to find teammates that want to join us on the journey.

Our venture partners include First Round Capital and L Catterton.

We're looking for:

- A few Senior Full-stack or Backend Engineers across our 3 product engineering teams. We highly value product-mindset, experience building production web apps for real users, and ability to coach and support more junior engineers.

- A technically hands-on Engineering Manager. Ideally, you have at least a year or two of experience leading people and being accountable for a team's execution, roadmap, and performance. You would be the fourth "line manager" on our team, and so there's ample opportunity to grab org-wide initiatives that are interesting and impactful.

Our stack includes AWS, Postgres, Python/Django, React/Redux/Typescript, Datadog

Some other company notes / benefits: NYC-level total cash comp, meaningful equity, open PTO policy, full health/dental/vision with solid buy-up option, remote weeks around major holidays, high quality catered lunch 3 days/wk, 4% 401k match, cell phone plan, gym subsidy, and some student loan repayment match.

Check out the full JDs here https://perpay.com/careers#open-roles , and feel free to reach out directly! karl at perpay dot com

Second Nature | Software Engineer, Engineering Manager, Director of Engineering | REMOTE (US) | Full-time

Second Nature (<https://secondnature.com>) is redefining professional property management with fully managed Resident Benefits Packages. We're a Resident Experience Platform helping 1,000+ property management companies automate resident onboarding, credit-building, renters insurance, utilities, and other resident services—creating "Triple Win" experiences for residents, property managers, and investors.

We're the only 5-time national NARPM vendor of the year!

Tech Stack: TypeScript, React, Next.js, NestJS, PostgreSQL, Kubernetes, Terraform, AWS, Python. CI/CD with GitHub Actions/CircleCI. Domain-driven design and event-driven architecture.

Culture: We move fast ("Pirate Ship, Not a Cruise Ship"), take extreme ownership, and focus on outcomes. Currently exploring AI integration across our workflows.

Benefits: 100% remote (US), medical/dental/vision, 401K, open PTO, equity.

Open Roles:

Director of Engineering ($200K-$230K) - Lead cross-functional engineering teams building world-class software at scale. Shape technical strategy and grow our engineering org. <https://www.secondnature.com/careers?ashby_jid=704ec05c-96ce...>

Engineering Manager ($180K-$200K) - Player/coach role: hands-on coding + people leadership. Lead 5-10 engineers, drive architecture decisions, ship production code. Experience with TypeScript, React/Next.js, NestJS, PostgreSQL. <https://www.secondnature.com/careers?ashby_jid=6ac49e4d-9541...>

Software Engineer - Full-stack roles across our platform. JavaScript/TypeScript, Python, SQL, CI/CD experience. <https://www.secondnature.com/careers?ashby_jid=cc1a9853-779e...>

Datalab | Research Engineer, Fullstack Engineer | NYC (onsite) | Full-time

Datalab trains open-weight, state-of-the-art models for document intelligence — Chandra, Surya, Marker — used across Tier-1 AI labs, Fortune 500s, and government agencies. 50,000+ GitHub stars. 7-figure ARR. ~7× growth in 2025.

We’re a small, senior team shipping fast: everything from novel OCR models to production-grade parsing infrastructure. Tons of ownership, direct customer impact, and the chance to push the frontier of document AI.

Hiring: • Research Engineer — https://pages.datalab.to/Research-Engineer-2a2b95e8757f805da... • Fullstack Engineer — https://pages.datalab.to/Fullstack-Software-Engineer-2b5b95e...

Stack: FastAPI (Python) for backend + frontend, HTMX/JS, Postgres, Redis, Render. Training & inference in Python/PyTorch.

Benefits: Early-exercise options, full health, 401(k), unlimited PTO (incl. holiday shutdown), choose-your-own device.

Interested? Email careers@datalab.to with your resume and GH profile!

PrairieLearn (Remote US) — Full-Stack Software Engineer — TypeScript / Node / Postgres / AI

PrairieLearn (https://www.prairielearn.com) is an open-source assessment platform used by universities across the US (Berkeley, Princeton, Michigan, Illinois, and others). We power mastery-based learning and large-scale exams.

We’re a small, profitable, early-stage company (bootstrapped, no VC) and we’re hiring full-stack engineers to help us continue to grow. You’ll work across the stack and have meaningful ownership from day one.

We’re also developing AI tooling in the product, including LLM agents to help instructors create content, and vision-language models to help grade student work. This is practical, user-facing AI work with real-world impact — not a research sandbox.

Tech we use: Node.js / TypeScript backend, Postgres, AWS, React. PrairieLearn is open core: https://github.com/PrairieLearn/PrairieLearn

Details:

- Location: Remote (US only)

- Salary: $100k+ depending on experience

- Benefits: Stock options, unlimited PTO, flexible hours

- Role: Full-time. (We’re not able to sponsor visas at this time.)

If this sounds interesting, please email jobs@prairielearn.com. We’d love to talk.

Official job posting: https://www.prairielearn.com/jobs

Conduit | Software Engineer (Product) | Hybrid (San Francisco) | https://helloconduit.com

Conduit is revolutionizing warehouse operations with our modern yard and dock management system. By building a frictionless pickup and delivery experience for warehouses, we empower logistics teams to operate with unparalleled efficiency and visibility. In a sea of point solutions, we differentiate ourselves by offering a modular all-in-one platform that combines workflows to deliver 10x the value to customers. Our mission is to be the “Air Traffic Control” for warehouses, ensuring efficient, fast, and safe operations. We just raised our $6M Seed, have zero churn, hit 172% NRR this year, and are focused on scaling in upper mid-market and enterprise.

As a product-minded software engineer, you'll play a critical role in helping grow the company. While your core job is to build great products, you’ll occasionally step outside of product to support go-to-market efforts or customer success — a great opportunity to learn how this massive, critical industry works. We currently have three engineers on staff and are looking for a fourth.

Tech Stack: Python, Django, PostgresQL, GraphQL, TypeScript, Svelte

Apply here: https://app.dover.com/apply/conduit/57ed27f3-d8ca-4344-a17a-...