*Maiven | Full-Stack Engineer & Energy Modeling Engineer | Remote (US) | Full-Time*

Maiven is the software platform automating home decarbonization. We’re a small, mission-driven team punching way above our weight: we have large utility customers, contracts in multiple states, and a growing pipeline of programs launching later this year. We’re venture backed and moving fast.

We’re hiring two engineers:

- *Full-Stack Engineer* – NestJS, React, Tailwind, TypeScript, Python, Postgres, AWS, Lambdas. Someone who cares deeply about UX and moving fast while delighting the user.

- *Energy Modeling Engineer* – Python, pandas, AWS, modeling frameworks (ResStock, EnergyPlus, etc.). Experience with energy programs or building science is a huge plus.

Looking for builders who want real ownership, thrive in early-stage startups, and move with urgency and care.

More: https://www.askmaiven.com

To apply: Either email [jacqueline@askmaiven.com](mailto:jacqueline@askmaiven.com) or apply via Climatebase for the [Fullstack Engineer](https://climatebase.org/job/61149749/full-stack-engineer?for...) [1] or the [Energy Modeling Engineer](https://climatebase.org/job/61149748/energy-modeling-enginee...) [2]

[1] [https://climatebase.org/job/61149749/full-stack-engineer](https://climatebase.org/job/61149749/full-stack-engineer?for...)

[2] [https://climatebase.org/job/61149748/energy-modeling-enginee...](https://climatebase.org/job/61149748/energy-modeling-enginee...)

Nexus Intelligence | https://getnexus.ai | San Francisco | Full-time | Onsite/Hybrid

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Founding Software Engineer — Accelerate and elevate our software development work. You'll be working ~50/50 between improving existing software (PLC programming copilot, web app, LLM agent) and building new features and products from scratch. Exceptional full stack software development skills are required, preferably with strong Typescript/React/Node experience. Experience with manufacturing/controls is not required but would be a plus.

$125,000 - $175,000 + equity

https://app.dover.com/jobs/getnexus

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I'm Jonas, lead architect at Nexus Intelligence. We’re a software startup backed by a16z that’s building industrial automation systems for companies at the forefront of the US manufacturing renaissance. Our initial product is an agent-based platform for developing & operating legacy control systems, a set of platforms critical to automotive, food, energy, and other industrial sectors. Our vision is to bring AI-enabled workflows, development tools, languages, and runtimes into the manufacturing ecosystem - ultimately becoming the platform on which all modern industrial automation processes are built and deployed.

The team currently consists of Chris (CEO and founder, previously at Tesla, Stanford CS & MBA) and myself (automated biotech labs at Zymergen and Counsyl, dev tools at AWS, Cornell PhD). The first version of our product is in use by customers. You'd join us for the exciting and fast-paced 0 → 1 phase of company building. You’ll need to strongly believe in our mission, welcome the challenge of ambiguity, and iterate fast.

If this particular role doesn't quite fit your interests, we also have a General Application form on the same careers page. Email: jonas@getnexus.ai

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://jobs.lever.co/neednova/ and mention HN.

*Blacklane* (Berlin / Barcelona / London – hybrid)

Blacklane is a global premium chauffeur service company operating in 50+ countries, focused on sustainable and high-quality services. We’re hiring for two senior engineering roles:

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### Principal Software Engineer

Lead architectural decisions across teams, design scalable backend systems, and mentor engineers. You'll work with Ruby, Go, TypeScript, AWS, Kubernetes, Kafka, and Postgres.

Apply: https://grnh.se/h29mw6kz2us

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### Engineering Manager – Partner Integrations

Lead a cross-functional team building APIs and services that connect Blacklane with external partners. Own delivery, support engineers, and drive technical direction across key integrations.

Apply: https://grnh.se/61ffb9i02us

If you like to know more about our challenges in the Partner Integration team, please take a look at our press coverage: https://www.blacklane.com/en/press/releases/riyadh-air-partn...

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We offer a hybrid work setup (Berlin, Barcelona, or London), competitive compensation, and a mission-driven engineering culture. More roles: https://www.blacklane.com/en/career/ped/

Fusionbox | Python + TypeScript Engineers | Denver, CO | Full-time | REMOTE

We're a software engineering consultancy that builds enterprise software the right way. We negotiate the right to open source all our client code, maintain a handful of popular libraries, and our engineers contribute to Django core. We sponsor PyCon, DjangoCon, and Django Girls because we're invested in the ecosystem we build on.

We're looking for software engineers who value software design, system architecture, and collaboration. You should be comfortable with about half of these areas and eager to learn the rest: web application security, relational database design (PostgreSQL, beyond "SELECT *..."), Django internals, React, and distributed systems. What you'll actually work on: complex state machines for financial workflows, multi-tenant architectures with row-level security, custom database functions when the ORM isn't enough, and React frontends that handle real-time data without being a mess of useEffect hooks.

We're a small team where you'll own features end-to-end (database design to React components) and have opportunities to shape technical decisions. You'll get paid to write source code with a team that practices empathy and values work-life balance. If you've ever wished your job involved more elegant state machines and fewer marketing landing pages, let's talk: info@fusionbox.com.