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: mail [at] formfollowsyou.com

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: hiring@reef.pl Web: https://reef-technologies.com/

Prophet Town LLC | Various Software Engineering Roles | US – Remote and Hybrid | English fluency required | Full-time | $150K-$250K annual total comp (multiple)

I’m the founder, trying to do “enlightened business.” We are a people-first, fully-remote, boutique indie tech agency – building a team of talented, high integrity, and community-minded individuals first, then building businesses around them. Our leadership staff are ex-Fortune 100; everybody touches code. Notable recent projects: internal tools for Anduril, and the auction system for voltagepark.com.

We’re currently especially seeking:

Full-Stack Software Engineers (React, NextJS, Ruby on Rails; Typescript, Python; Database Design, Devops, and third-party API integrations)

IoT Developers (Python, MQTT, GraphQL, AWS, Test Infrastructure)

Please apply using this Google Form: https://forms.gle/Dxpj7eTwcHpjiGT39. Applicants who submit before January 15 will typically receive a reply by January 31. Tier3 roles are typically 5-10 y/o/e with $150-$175k annual total comp. Tier4 roles are 11-20 y/o/e, $210-$250k annual total comp. Higher tiers exist, and we welcome exceptional applications.

REGARDING DECEMBER - if you already submitted to last December's post, and haven't heard from us yet, we're still getting to you. The team's been working really hard over the last year, and I unexpectedly gave most of the folks helping me with job submissions the time off at the end of December / beginning of January. Apologies for the delay, and we will be with you soon. Rest assured there are jobs we're trying to fill - in fact, more than ever, it seems.

Adalat AI | https://www.adalat.ai | Remote (India) | Go, React, Next.js, k8s

We're Hiring at Adalat AI: Join Us in Building the Future of Justice

Adalat AI is on a mission to transform India’s judicial system with cutting-edge AI — reimagining courtroom workflows from transcription to summarization, just as UPI transformed payments and Aadhaar revolutionized identity verification. Deployed across 10 states and recently launched at the Delhi High Court, our platform is backed by global foundations and built by a team with roots at Harvard, Oxford, MIT, and IIIT-Hyderabad.

Roles:

- 2 X Fullstack Engineer (5+ YOE) – Own end-to-end feature delivery across React/Next.js, Go services, with Postgres as your database: https://www.adalat.ai/careers/full-stack-engineer

- Full stack Lead Engineer (10+ YOE) - Own technical leadership, mentor engineers, set technical roadmap of several of our products: https://www.adalat.ai/careers/lead-engineer-full-stack

Why Adalat AI?

- Mission-driven: Your work has real-world impact—helping untangle India’s court backlog, improving access to justice for millions.

- Remote-first: Work from anywhere.

- Unlimited PTO: Yes, seriously.

- Unique environment: Co-design with judges, legal experts, and researchers. Publish, learn, grow. We value tech, law, and impact equally.

CLUTCH | Embedded Systems Engineer (Computer Vision), Product Designer, Head of Growth | Remote | Full-time

Clutch builds an AI camera for racket sports courts and an app that generates automated highlight reels and match analysis using computer vision.

Our initial focus is padel (the fastest-growing sport globally). Since launching in 2025, we’ve deployed the Clutch Cam to clubs in 25+ countries.

We’re a small, early-stage team building both hardware and software.

We’re currently hiring for:

• Embedded Systems Engineer (Computer Vision) https://clutchapp.notion.site/Embedded-Systems-Engineer-Comp...

• Head of Product Design (UI/UX) https://clutchapp.notion.site/Head-of-Product-Design-UI-UX-2...

• Head of Growth https://clutchapp.notion.site/Head-of-Growth-2a1f733f6e69800...

https://www.clutchapp.io

Thunder Compute, YC S24 | https://www.thundercompute.com | In-person in San Francisco

Hiring 4 full-time Software Engineers for low-level C++ systems work (HFT skillset preferred), reporting to the CTO, team from Citadel Securities, Aquatic, Old Mission, Bain

We're a cloud provider using GPU virtualization software to arbitrage GPU prices.

We research technology to use GPUs more efficiently than competitors. Our cloud network attaches GPUs over TCP to eliminate downtime. This lets us buy GPU compute, make it more efficient, and resell it at 60%+ profit margins.

We recently closed ~$4.5M of funding to recruit the world's best low-level talent.

If you're cracked at building C++ systems software and looking to do something more meaningful than creating liquidity in the market, reach out.

To apply: email met at carl@thundercompute.com and mention HN. I read every email.

Tasklet | Staff Software Engineer - AI Agents | San Francisco, CA | ONSITE | $260k-$330k + 0.8-1.6% equity

At Tasklet (https://tasklet.ai/), we're building the world's most powerful AI agent platform for business automation.

We're looking for a staff-level software engineer to share technical leadership of our core agent infrastructure. You'll architect systems for multi-step agent orchestration, state management, trigger systems, and seamless integration with thousands of APIs.

Our stack: TypeScript, React, GCP, Kubernetes, Claude

Looking for: 5+ years experience building production-scale systems, proven technical leadership, experience building AI agents, exceptional programming skills across the full stack.

Compensation: $260k-$330k salary + 0.8-1.6% equity, competitive benefits including medical, dental, vision, 401k, 4 weeks PTO

Apply: https://shortwave.notion.site/Open-Positions-at-Tasklet-2a36...

Ringtail Labs | Sr Electrical Engineer | Contract/Remote (US) | $125 - $200/hr |

We build cool products, solve tough problems, and help grow companies.

We are looking for a Senior Electrical Engineer that is well-versed in Altium Designer. Must have several years of experience designing analog and digital circuitry. High speed and impedance controlled routing experience preferred.

Website: ringtaillabs.com Email me (Partner) at bailey@ringtaillabs.com. Please include resume/CV.

Lightcraft Technology | Senior iOS Real Time Engineer | Remote (US) | https://lightcraft.pro/

Hi! I’m the co-founder of Lightcraft Technology. We’re creating a collaborative virtual production platform for the future of visual storytelling. Our team includes deep expertise in robotic systems, real time video processing, and Web frameworks – and a couple of Emmys and Oscars between us!

Our award-winning Jetset iOS app is the core of our real-time connection to cine cameras and stage production. https://apps.apple.com/in/app/lightcraft-jetset/id1634621836

We’re looking for a senior iOS/real time developer to help craft the next generation of previsualization and on-set filmmaking experiences, where the stage meets the network. You’ll work closely with our small, fast-moving team on leading-edge technologies in augmented reality, rendering, and networking.

This is a product where milliseconds and mathematics matter, and mutexes are a love language. Spin up your xCode profiler, put the pedal to the Metal, and send responses to eliot (at) lightcrafttech.com.

Technical details: https://bit.ly/4p3yfpG

Stack Influence | Multiple Openings: Full Stack Developer, Technical Product Manager, Product Designer & UX Research | Full-time | Remote (Worldwide)

We’re a VC-backed, fully-remote, fast-growing creator marketplace connecting eCommerce brands with everyday social media users.

• Senior Full Stack JavaScript Developer ($125-200k USD): Modern tech stack—React, Node.js, Next.js, and Azure. Individual contributor on a small team with no mentoring duties and a 4-day work week.

• Product Designer and UX Researcher($120-180k USD): Hybrid design and research role. 4-day work week

• Technical Product Manager ($150-225k USD): Business-minded ex-engineer with SQL, analytics, and integration skills. 4-day work week

APPLY –> https://stack-influence.breezy.hr/

Oscilar.com | Sr/Staff Software Engineers & PMs | REMOTE (US/Canada/Brazil/Poland/UK) | Full-time AI Risk Decisioning™ platform that helps organizations manage onboarding, fraud, credit, and compliance risks

Open roles: - Engineering Manager - (Brazil)

- Sr./Staff Java Backend Engineer (Brazil/North America/Europe)

- Sr./Staff Infrastructure Engineer (North America/Europe)

- Staff GenAI Engineer

- Staff SDK Engineers - Web, Android & iOS

- Sr./Staff Data Scientist and Data Engineer

- Full-Stack Engineer - AI Agent Platform

- Product Manager for AI & RiskOps/Case Management

Apply at: https://jobs.ashbyhq.com/oscilar?utm_source=HackerNews

2NDNATURE | Director of Engineering (Player-Coach) | Santa Cruz, CA | ONSITE

2NDNATURE is a small SaaS company providing stormwater management software to municipalities and corporations. We have a mature product grounded in science, a solid customer base, and are at a technical inflection point. We are looking for our Director of Engineering to be a true "player-coach"—a hands-on leader who loves writing code (60% of the role) and mentoring a small team of developers. You will lead our transition into an AI-first platform, helping us adopt modern tools like Claude Code and Copilot to scale our capacity. The Role: Lead by example: Write code, review PRs, and establish engineering best practices (testing, CI/CD, SOC2). Collaborate: Work directly with the CEO and CPO. We value transparent decision-making over isolated technical dictation. Teach: Mentor our team on modern practices, system architecture and AI-assisted development. Requirements: -7+ years in software engineering with leadership experience. -Be in the Santa Cruz office 3 days per week. (office is a block from the beach). -Pragmatic builder who understands SaaS for regulated industries. How to Apply: Send resume and thoughtful cover letter to careers@2ndnaturewater.com. See full job description on careers page of our website www.2ndnaturewater.com

Unit | San Francisco, CA | On-site | Full-time | Multiple Roles | https://www.unit.inc/

Unit is building GTV, a new video platform that can automatically produce high-quality, personalized content.

Our team is from Instagram, TikTok, and NVIDIA. We're backed by Khosla Ventures, Air Street Capital, and angels from top AI labs. We have strong traction, paying customers, and an exciting year ahead.

We're hiring for multiple roles:

- Backend Software Engineer: https://jobs.ashbyhq.com/gtv/d17dd0c3-cb91-4dcb-8543-3752807...

- Fullstack Software Engineer: https://jobs.ashbyhq.com/gtv/7ef9e46c-7b8c-49c3-b138-b055af7...

- ML Infra Software Engineer: https://jobs.ashbyhq.com/gtv/954d9a64-90f1-4e38-85c9-9873a60...

- Product Designer: https://jobs.ashbyhq.com/gtv/9b36a9a2-a865-4cc8-8b88-0892189...

If you're interested, please reach out directly to us at careers[at]unit.inc

Pepr AI | pepr.ai | Onsite in San Francisco | Full-time | Multiple roles | $140-$270K based on role / seniority | 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, ML & Optimization - https://pepr.ai/careers?ashby_jid=baf0e7ac-164f-4f1d-9938-de...

* Member of Technical Staff, Product - https://pepr.ai/careers?ashby_jid=e6d130a7-29c0-420d-b954-ba...

Please send a note to founders@pepr.ai if you apply.

Shaswat, co-founder & CEO

Konvu | https://konvu.com/ | Software Engineer | FULLTIME | ONSITE | Paris, France

At Konvu, we’re on a mission to make security invisible. As we move towards a future dominated by code automatically generated, tested, and deployed by AIs, we need a new paradigm for application security. We need vulnerabilities to be automatically detected, prioritized and remediated.

Behind Konvu are founders with deep roots in the security industry. As part of the founding team at Sqreen (YC W18), a notable security startup acquired by Datadog, we have firsthand experience in driving security solutions from concept to global impact.

We’re looking for:

* AI Engineer (Intermediate-Expert) https://jobs.ashbyhq.com/konvu/2ef1efa3-270d-4c4a-8af6-bde52...

* Software Engineer (Expert) https://jobs.ashbyhq.com/konvu/fd57b278-39c6-4ed1-a1b8-a8732...

ChainSecurity | Blockchain Security Engineer | Full-time | INTERNS , HYBRID/REMOTE, Zurich, Switzerland | VISA possible | https://chainsecurity.com/

ChainSecurity is a young and innovative cybersecurity company that operates in the blockchain and cryptocurrency space. Our mission is to make the blockchain space secure and trustworthy for people, companies, and governments alike. We are proud of our security experts from the renowned universities ETH Zurich, EPFL Lausanne and others. We are trusted by 100+ blockchain companies and established corporations with security audits and services. We have secured complex systems for top blockchain clients, such as decentralized finance (DeFi) projects, and multinational organizations, such as banks and industrial consortia.

A ChainSecurity Auditor will review the most complex blockchain projects to find vulnerabilities which no-one else can. By using state of the art tools, expert knowledge and a deep understanding of the fundamentals, we secure projects handling billions, often forming the foundation in the new paradigm of an open financial system.

Your Responsibilities:

* Work directly with the developers of the most successful teams in the blockchain industry to audit their code and secure their products

* Contribute to our security tools and create new ones in collaboration with our internal research team

* Conduct security research and publish your findings

Requirements:

* Strong background in software engineering, focused on security relevant areas and most importantly being able to reason about complex code

* Experience with penetration testing, vulnerability scanning, threat modeling or similar is a plus

* Good knowledge of cryptography

* Proficiency with Linux and Git

* Good written communication skills

* Fluent in OOP programming language

Bonus Points:

* Formal Verification, White Box, Vulnerability Scanning

* Solid Blockchain Knowledge

* Consensus Algorithms

Join us here: https://www.chainsecurity.com/jobs/blockchain-security-engin...

Questions about the role? Contact: jobs@chainsecurity.com