Lift AI | Senior Software Engineer | Remote (US timezones, LatAm/Canada OK) | Full Time | $100K + 0.50–0.75% equity

Lift AI builds software for the elevator industry, where paper inspection reports and faxed maintenance tickets are still normal. Almost no one is building software for this market. We manage ~5,000 properties and have 1,000+ IoT deployments on elevators across the US. The platform handles asset management, maintenance workflows, contract tracking, and an AI pipeline that extracts structured data from elevator industry documents. Django/PostgreSQL backend, React/TypeScript frontend, all on AWS. The CEO's family has been in the elevator industry for 40 years — we're not outsiders guessing at what the market needs.

You'd be our third engineer. The team is me (CTO, I write code daily, Central Time), one engineer who's been here two years and knows the domain well, and our Chief of Product who handles the PM side. No QA team, no DevOps. You own what you build.

First project: we acquired a field maintenance product that currently runs on Firebase/Firestore. You'd design the migration of its backend onto our Django/PostgreSQL stack, including figuring out a replacement for Firestore's offline sync (we're looking at ElectricSQL). You define the API contract, our other engineer builds the frontend against it. Beyond that, we're actively building AI features. One example: an invoice dispute agent that communicates directly with service providers. You'd help architect those.

Stack: Django 5 / DRF, PostgreSQL, Redis, Django Q, React Router v7, TypeScript, MUI, AWS (CDK, ECS Fargate, ElastiCache, RDS), GitHub Actions. AI features use Claude, OpenAI, and LangChain.

We're async but not siloed — Slack, GitHub PRs, and Linear are where most collaboration happens, with the occasional video call. No standups. We follow Shape Up with 4-week cycles. I review architecture proposals for your first ~90 days, then you own your domains. No on-call rotation. We don't do evening releases, and when something rare breaks, everyone pitches in.

$100K base + 0.50–0.75% equity. We have ~5,000 customers and growing revenue, so the equity isn't a lottery ticket. $100K is below big-city market rate and we know that. We're not focused on titles or hierarchy. Growth here means the scope of what you own keeps expanding, and comp grows with it.

5+ years experience. Python (Django, Flask, or FastAPI) and React/TypeScript in production. You've built something from architecture to deployment without someone telling you how. If you've been engineer #2-5 at a startup, or you're a senior engineer tired of process overhead, or you're at an agency and want to go deep on one product, this is that kind of role.

hiring@liftai.com — send something you've built that you're proud of, and tell us why.

Hey HN - I'm George, founder of xFigura. We're building the AI-native creative canvas for architects - Figma for the built world.

The problem: Architects design where you live, work, get surgery, send your kids to school. Their tools? AutoCAD (1982). Revit (2000). The physical world runs on software older than the iPhone.

Six months in, we have 5 of the top 20 architecture firms using the product. No marketing, $0 to $1M ARR in less than a year, and we just closed a $3M seed round.

What we're building: AI orchestration across 50+ generative models, infinite canvas collaboration, native CAD integrations (Rhino, Speckle, Revit), enterprise RAG for firm-specific knowledge.

Stack: DynamoDB, Next.js, Tailwind, AWS, FastAPI. Looking for someone who's shipped production AI systems and is in the 99th percentile of using AI in their own workflow (Cursor, Claude, etc.).

Small team, huge ownership. You'd own entire systems, not tickets.

Email me directly: info@xfigura.ai (mention HN in Subject)

Phonely | Senior Backend Engineer (Python) | San Francisco (Onsite) | Full-time

We’re building the future of voice AI for businesses, with a platform designed to make real-time agents easy to build, tune, and operate.

We’re looking for a senior backend engineer to work on core systems that drive live voice conversations in production. This is a hands-on role with a lot of ownership and a lot of Python.

What you’ll do

• Build Python-based state systems for real-time voice AI conversations

• Integrate multiple LLM providers (prompting, routing, tool calling, fallbacks)

• Write high-performance async Python (FastAPI, asyncio)

• Design and test resilient agent logic and microservices

• Operate and improve production systems with strong observability

What we’re looking for • 5+ years of Python experience, including async web services

• Experience with FastAPI, testing, and CI/CD

• Strong system design and security fundamentals

• Familiarity with LLMs, cloud infrastructure, AWS, and Kubernetes

Stack

Python, FastAPI, async microservices, AWS/GCP, Kubernetes, Redis, Firebase, Supabase, Datadog, SIP/voice APIs

Why Phonely

Small, intense team of builders. High ownership, fast pace, real impact. In-office 5 days/week in SF. Company-paid meals, great culture and periodic international work trips.

https://bookface.ycombinator.com/company/29645/jobs/87967

CVector | Software Engineers, Senior Research Engineer | 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 integrate real-time data visualization and analytics to help power generation stations, chemical plants, and other critical infrastructure make informed decisions in rapidly changing environments. You'll help create intuitive, robust web apps, machine learning models and backend systems, shaping tools that directly impact industrial operations and energy reliability. Build AI agent systems that automatically foresee upcoming problems and provide possible solutions.

Full Stack and Backend Software Engineers: We're looking for a passionate Software Engineers comfortable working across our stack (Python, Typescript, React, Supabase, MQTT, TimescaleDB, PostgreSQL, AWS, FastAPI) or someone to specialize in our backend infrastructure.

Senior Research Engineer: Candidates should be experienced with machine learning, and analysis using Python.

Reach out to me at jnapoli+hn@cvector.com

Cogram | Full-time | Remote (CET ±3) | https://cogram.com | B2B Saas / AI for AEC

Cogram is an AI platform for the architecture, engineering, and construction industry. We automate project admin such as RFIs & submittals, email filing, field notes, meeting minutes, and reporting. World-leading architecture and engineering firms have adopted Cogram at scale. We're backed by YC and Initialized.

We're looking for product engineers that ship high-quality software and are good at talking to users and understanding requirements. You're comfortable across the stack and own features end-to-end. A strong sense for good UI/UX is required. Experience in 3D modeling / CAD / BIM is a big plus.

Stack: Python (FastAPI), Postgres, Redis, React/TypeScript, React Native/Expo, Terraform/Kubernetes on AWS & Azure. Fully remote, three off-sites/year, ~38 paid days off, competitive salary + equity.

Apply: r+hiring[at]cogram[dot]com with GitHub/LinkedIn/portfolio and a short note, including your current agentic-coding setup.

BuildForever | On-site (SF, NY) | Full-time

We’re a small team of creative builders crafting consumer products that feel personal, magical, and deeply human. We build for ourselves first, with the belief that what delights us will resonate with millions more. We imagine a new golden age of consumer software - crafted with heart, emotion, and taste. Small, inspired teams building things that feel lovingly made, purposeful, and joyful to use. If that sounds like your happy place, you’ll fit right in.

We have several positions available. Please send us a note at careers@buildforever.com with a short intro and links to what you’ve built (systems, repos, tools, prototypes, side projects). We care more about your taste, technical creativity, and product intuition than resumes.

Backend Engineer - https://ambiguous-thunder-400.notion.site/Backend-Engineer-2...

ML/AI Engineer - https://ambiguous-thunder-400.notion.site/ML-AI-Engineer-2aa...

Product Engineer - https://ambiguous-thunder-400.notion.site/Product-Engineer-2...

Social Growth Lead - https://ambiguous-thunder-400.notion.site/Social-Growth-Lead...

Stack Backend: Python, FastAPI, TypeScript, Postgres/SQLModel, Redis, Cloud Run. Frontend: Swift, UIKit, React.

Mondrio | Software Engineer (Founding Team) | REMOTE (Brazil) | 3-Month Trial-to-Hire

B2B SaaS pricing is still guesswork. We’re building the AI-powered monetization operating system to fix it. We are pre-seed, lean (4 people), and shipping to live customers.

The Experience: This is a unique "fast-track" for an ambitious junior/mid-level engineer. You’ll skip the corporate ladder and learn to build an AI-native company from the ground floor. You will own features end-to-end—no managers, no layers.

AI-Native Workflow: We are all-in on Claude Code for scoping and shipping. You get a seat on Day 1. If you aren't already 10x-ing your output with AI tools, we’ll teach you. It’s the most essential skill for the next decade of engineering.

The Work:

Integrations: Build OAuth 2.0 flows and data sync pipelines for pilot customers.

Northstar Module: Build a strategic intelligence module from scratch (DB, Backend, Frontend integration. We have most of designs already).

AI Personas: Use LLMs to turn raw customer data into actionable pricing strategy.

Stack: Python 3.12 (Typed), FastAPI, MongoDB/Beanie, React/TS, Gemini/Claude, Claude Code, Google Cloud, Docker, Pulumi

Who You Are: You write clean, typed Python and can navigate a React component. You use AI tools (Cursor/Copilot) to move fast but remain the pilot. You care about the "Why" behind the product.

Process: Intro call → Technical session → Founder chat. Decision in ~7 days.

Apply: Send a link to something you’ve built to manon@mondrio.com

Ezra | Senior+ Engineer (Full-Stack) | LATAM REMOTE ONLY | Full-time

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

I’m Rob, the CTO, and we’re looking for multiple seasoned, full-stack(backend, frontend, and devops) Senior+ Engineers (8+ years exp) to significantly contribute to the development and scaling of our core platform. We are specifically looking for teammates in Central and South America (LATAM) who can work US Eastern hours. This is a high-autonomy role for a proven generalist who is deeply product-focused and takes complete ownership of features from concept to production.

The Role:

Drive technical delivery of full-stack features end-to-end, collaborating with Product and Design to define requirements and ensure engineering quality.

Design and develop scalable components and APIs across our backend and frontend.

Work to integrate, serve, and iterate on model-powered features and RAG systems.

Contribute to system architecture decisions and the evolution of our infrastructure.

You must have significant production Python experience.

Stack: Python (FastAPI), Typescript, Next.js, React, AWS, Terraform, PostgreSQL (SQLAlchemy).

Contact: Email me directly at robert+hn26@ezra.fi with your resume

Bidaya AI | Senior Software Engineer (Full Stack) | Calgary, Canada (Hybrid) | Up to $140k CAD + Generous Equity

We're an early-stage (pre-seed) VC-backed startup automating RFPs in the AEC (Architecture, Engineering, Construction) industry.

We are building a online platform along with a direct Microsoft Word integration, helping firms find and win more work, while serving as their knowledge management hub for all business development.

You would be the first full-time engineering hire working directly with the founders (I'm the technical co-founder). We need someone who can ship production code across the whole stack.

The Stack: Next.js, React (Office.js), FastAPI (Python), Temporal

Hard problems you will solve:

Deep Word Integration: Building a high-performance, "Cursor-like" experience within the constraints of Office.js.

Agentic Workflows: Orchestrating AI agents that can read complex government requirements, reason about compliance, and generate winning output autonomously.

Evolving Knowledge Graph: Architecting a library system that doesn't just store files, but learns from project history and feedback loops.

If you want a chance to work on a hard problem, in an exciting space, with a strong team that has validated the market and de-risked the business, with major upside, let's talk!

To apply, email me directly: majd [at] bidaya.ai or apply here https://app.dover.com/apply/bidaya/d5f29bbb-9c67-4c4e-82bf-5...

Mention HN in the application.

Lantern | Software Engineers (Python, Full-Stack) | NYC (Onsite) | Full-time | withlantern.com

Lantern is building AI-powered revenue intelligence—autonomous agents that turn cold outreach into warm conversations. We detect buying signals across your tech stack, prioritize opportunities, and help B2B sales teams focus on deals that actually close. We're early, agentic-first, and moving fast.

Senior Software Engineer: You'll own complex technical problems end-to-end—translating customer needs into scalable architecture, optimizing AI model efficiency through prompt engineering, and shipping features that directly impact how revenue teams operate. We want bold ideas and people who push boundaries.

Junior Software Engineer: You'll work across our stack (Python, FastAPI, Next.js, React) alongside senior engineers, contributing to real features from day one. Great fit if you're hungry to learn, ship fast, and grow with a startup building cutting-edge agentic systems.

New Grad Software Engineer: Entry point for recent grads excited about AI and agentic systems. You'll get hands-on experience with our modern data stack (Postgres, ElasticSearch, ClickHouse, DuckDB), Kubernetes/AWS deployment, and Temporal.io workflow orchestration while shipping production code.

This role is based in our Manhattan office (4 days/week in-person). Full health and dental coverage.

Apply: https://forms.gle/kEi5MDDiaJKdyN3fA or email maksym at withlantern.com with your resume.

ASBL | Mobile Engineers, Engineering managers | Hyderabad, India | ONSITE | 35-100L INR We're a fast-growing, profitable real estate company in India, using technology to solve deeply complex problems in the construction and real estate space. Our mission is to build high-quality homes and deliver them on time—a massive challenge in this industry. Your code directly impacts everything from our supply chain and project management to the final home-buying experience for families. We're looking for product-minded engineers who want to own problems end-to-end in a high-impact environment. We use cursor and are AI first. Stack: React, Angular, TypeScript, Node.js/FastAPI, Postgres, Redis, Docker, GitHub Actions, AWS/GCP, OpenTelemetry.

Culture: AI-native (everyone uses Cursor/Copilot), small teams, high ownership, fast iteration.

Learn more and apply at: https://asbl.in/careers/software-engineering. Please mention you saw us on Hacker News.