Kato | Senior Software Engineer | San Francisco, CA | ONSITE | Full-time

Kato is building a compliance-first AI servicing platform for the $24B lending market. While others treat regulatory guardrails as an afterthought, we’ve built a regulatory rules system with an AI decision engine on top. Our first product is a Voice AI agent currently handling loan servicing calls for major fintechs like Bilt Rewards and Parafin.

We are backed by Pear VC and angels from Brex, Bridge, and Square. You’ll be our second engineering hire, working directly with our CTO (ex-Google/Brex EM) and CEO (ex-Goldman/Brex).

The Role: As an early hire, you’ll own mission-critical projects across the entire stack. You’ll lead the architecture of our real-time voice processing system, optimize LLM integrations for compliance-aware conversations, and build out our customer-facing dashboards.

Tech Stack:

Backend: Golang, PostgreSQL

Frontend: Next.js, TypeScript, React, Tailwind

Infra: AWS, Terraform, Kubernetes, Docker

AI/ML: LLMs, Speech-to-Text, Text-to-Speech

Requirements:

2-5 years of production software experience.

Strong API design and architectural thinking.

An "owner's mindset"—we are a small, high-intensity team where everyone drives product direction.

Experience with WebRTC, real-time audio, or FinTech is a plus but not required.

Location: San Francisco (4 days/week in-person).

To apply: https://jobs.ashbyhq.com/pear-vc/214dc247-0778-485b-8a3d-067...

Squint | Onsite, San Francisco | Squint is the leading manufacturing intelligence platform. We're leveraging the latest in AI, spatial, and hardware capabilities to accelerate human potential and spark the next industrial revolution.

What makes Squint special?

- Our customers include some of the most iconic manufacturing brands across Food and Beverage, Automotive, and Consumer Package Goods. Work here literally transforms how the world around you is made.

- We're not replacing people with AI, we're up-leveling them; capturing insights, turbocharging workflows on the factory floor, and making every operator an expert.

- We're bringing consumer-grade quality to enterprise software, combining cutting-edge tech with deep customer empathy to build a product that's powerful, magical, and deeply loved by our users.

High Priority Open Roles:

- Applied AI Engineer

- Software Engineer, Backend Infrastructure

- Senior GTM Recruiter

- Senior Accounting Manager

- Director of Enterprise Sales, Energy Sector

- Customer Strategy Partner

- Strategic Enterprise Account Executive

- Senior Sales Engineer

View full list of roles and apply here: https://jobs.ashbyhq.com/squint.ai?utm_source=hackernews

Careforce AI (previously Helpcare) | Senior Fullstack Engineer | REMOTE (US)

Location: Remote (US) Remote: Yes (US Only) Willing to relocate: No Technologies: Python, FastAPI, React, Supabase, GCP, LLMs Résumé/CV: https://www.ycombinator.com/companies/helpcare-ai/jobs/hjx9n... Email: Apply via link above

Description: Careforce AI is building autonomous AI agents that eliminate the manual administrative burden in healthcare (fax machines, scheduling, calling). We find, call, and schedule patients, breaking interoperability barriers that have plagued the industry for 40 years. We are a well-funded, YC-backed company with massive customer demand.

We are looking for a Senior Fullstack Engineer to be a foundational member of our small, ambitious team. You will have significant ownership working across the stack to build and scale the core of our AI agent platform. We are looking for builders with 5+ years of experience, preferably with an early-stage startup background (Pre-seed to Series A).

Hiring Tech Lead and SRE – 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:

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

Tech Stack: Python, TypeScript, Postgres, Kubernetes, GCP Languages: Spanish + English for leadership. English only OK for engineers.

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

Apply here: tramcase.com

Gaia AI | Fullstack Platform Engineer | Robotic Perception Engineer | Full-Time | Boston

Hi, I’m Mel at Gaia AI (https://www.gaia-ai.eco/).

We’re a small GreenTech startup in Boston building hardware and software in the forestry space.

Role: Full stack / platform engineer working on the web app and mobile app. Our stack includes TypeScript, React, Mongo, AWS, and React-native.

Role: Robotic Perception / Computer Vision / Machine Learning engineer working on a sensor-packed backpack for foresters. Our stack includes LiDAR, Vision, SLAM, and Rust.

Preferred Years of Experience: >= 3

Company Size: 7 people

Company Location: Downtown Boston near South Station

For Fullstack apply here: https://docs.google.com/forms/d/e/1faipqlsexplh__tmz_eirs4yq...

For Perception apply here: https://forms.gle/t7uwlgo5ugadkzraa

Feel free to reach out to me with questions: mel at gaia-ai.eco

Sage Bionetworks | USA Remote | Full Time | Principal Software Engineer (Backend) https://job-boards.greenhouse.io/sagebionetworks/jobs/409128...

At Sage Bionetworks, we believe in the power of open science and interdisciplinary collaboration to create a new vision of human health. We strive for actionable biomedical insights through the responsible sharing and reuse of data, all guided by our deep scientific expertise and diligent governance controls.

We are hiring a Backend Software Engineer to join our technology team at Sage Bionetworks. Our engineers build the secure, scalable, and high-performance services that power open and collaborative science. From Synapse.org to our research portals and other applications in the Sage ecosystem, the tools you create will enable researchers and communities worldwide to share data, generate insights, and accelerate biomedical discoveries.

We pride ourselves on openness and collaboration. All of our software is available in GitHub. Our openness and non-profit status attracts support from a variety of collaborators, including major technology companies. We prioritize productivity over arbitrary rules, allowing workers to choose the tools and work habits that suit them best, rather than dictating practices, top down. We prioritize software usefulness and stability rather than rushing to get features out the door. We have close relationships with our user base, many in-house, ensuring that we stay relevant.

Tiger Data (FKA Timescale) [ Global | 100% Remote | Multiple Roles: Eng, Product, Support + more ]

We began in 2017 as TimescaleDB, focused on making PostgreSQL the best database for time-series data. As our customers evolved, so did we.

Today, more than 2,000 companies use our technology to power real-time analytics, agentic applications, and high-ingest operational systems. What started as a time-series database has become the fastest PostgreSQL for modern workloads. To reflect that evolution, we’re now TigerData—a name that speaks to our speed, precision, and ambition. The tiger has long been part of our culture: fast, focused, powerful. From “Tiger Time” all-hands to welcoming new hires as “tiger cubs,” it’s how we build—decisively, fearlessly, and with purpose.

This is not a reinvention: it’s a reflection of how we already serve our customers today.

TigerData is growing! Check us out: https://www.tigerdata.com/careers

Software Engineering Manager - Database - https://www.tigerdata.com/careers/08ddff61-b67a-42c5-a799-2e...

Senior Test Tooling Engineer - https://www.tigerdata.com/careers/f50c226d-682e-40e9-8d2e-52...

Database Support Engineer - https://www.tigerdata.com/careers/0aca17c7-7222-4f75-9c8e-59... Customer Delivery Engineer - https://www.tigerdata.com/careers/3d060bc0-1abf-446b-881e-f4...

Senior/Staff Product Manager, AI - https://www.tigerdata.com/careers/542068ed-6f51-4994-9f58-0c...

GreenArrow Email | Remote | Full-Time https://www.greenarrowemail.com/careers/developer

I'm Alex McHale, Lead Developer at GreenArrow Email. We're looking to add an additional developer to our team. The right candidate will have solid Go skills and can "hit the ground running" (so sorry for the cliché). Bonus if you're a polyglot who might have skills in Ruby on Rails and JavaScript.

We've put a lot of thought into our job post. Please give it a read. If you think you're a fit, there's a link at the bottom of the post with a form to fill out.

Buildplace (by Form Follows You GmbH) | https://company.buildplace.io | Berlin

With Buildplace, you can simulate your planning projects in a digital twin in no time. The integrated inventory mapping captures the complexity of your real estate portfolio and transforms it into an interactive map that you can easily enrich with additional geodata. Furthermore, our holistic consulting approach supports you with individual project planning, customized enhancements, and the targeted application of Buildplace for your specific use case.

We are a team of ~10 persons half of them engineers. This might sound small, but we are bootstrapped and try to keep our software stack observable. We program mainly in Typescript with Fastify, BullMQ, GraphQL (Pothos) on the backend, Postgres and Redis as DBs [ and React, Maplibre, BabylonJS on the frontend ]. We see demand in more expertise for container orchestration, load balancing, reverse proxy configuration, VPS Administration and monitoring.

Therefore, if you are curious about our field of work and have knowledge in system administration and / or backend engineering with the stated technologies, feel free to reach out to us!

Contact: Email is hidden

Senior Python Backend Engineer | REMOTE

We’re looking for Python backend engineers to work on a trustless supercluster of performance-proofed GPU-enabled sandboxed docker container runners controlled by truly decentralized algorithms (not just PAXOS or RAFT).

Wow, that was a mouthful...

If you found it interesting, join Reef Technologies and tackle complex technical challenges like this on your own terms:

- Contribute from wherever you like—we are fully remote

- Set your own time commitment, as long as it’s at least 30h per week

- See how we work in our handbook: github.com/reef-technologies/handbook

- Influence the way we operate through our Sociocracy 3.0 decision-making process

Salary on a B2B contract:

- 45-70 USD or 180-280 PLN per hour

- Flexible work schedule (as measured with a time tracker)

- We automatically adjust rates based on inflation twice a year

We're looking for someone with 5+ years of programming experience, including at least a year with Python (including opensource and significant personal projects).

So, what do you think? You don't even need a CV, just go to https://careers.reef.pl/?utm_source=hackernews and shoot a few quick commands to apply.

Contact: Email is hidden Web: https://reef-technologies.com/