feasibly | London, UK (Hybrid) | Founding Engineer (Full Stack) | Full-time

VC-backed startup building an agentic co-pilot for renewable energy site development, so infrastructure can plan and build itself.

What you'll be working on:

• Lead hands-on engineering to ship the core platform

• Shape a high-performance dev culture as we scale

• Work closely with founders and have autonomy to take risks

• Ship fast, test ideas and iterate based on real feedback

Stack: React/TypeScript, MapLibre, OpenTofu, AWS Serverless (Amplify Gen 2, Lambda, DynamoDB, Bedrock)

Applications and further details here: https://foundingengineer.feasibly.co.uk/

PetsApp – The future of pet care | Remote (US/UK/EU) | https://petsapp.com

Open roles:

- Full Stack Engineer $150k–$230k | Full-time

We’re building an AI-powered clinic assistant that actually gets things done—booking appointments, managing vaccine records, handling FAQs, and even sounding like the clinic itself. This is multi-modal AI in the real world, not a demo.

⸻

We’re looking for product-minded engineers who want to push the boundaries of generative AI, RAG, and intelligent automation. You’ll ship fast, solve real user problems, and help us make AI feel magical, not clunky. Tech stack: TypeScript, NestJS, React, React Native, AWS. Bonus: AI experience, but what matters most is product intuition and the drive to build useful things.

Apply here: https://forms.gle/5fww8HDwRrP6c6Fo9

Cambridge Cognition | Senior Software Engineer, Full Stack | REMOTE (Canada or UK) | FULL-TIME | https://cambridgecognition.com

Company: We aim to improve the health of people worldwide with innovative assessments and digital biomarkers that provide researchers with precise measures of patients’ symptoms. We are a leader in cognitive and speech assessments in clinical trials for neurodegenerative and mental health disorders (Alzheimer’s, Parkinson’s, depression, and many others), with over 30 years of scientific discovery and validation.

Culture: We’re a small/medium sized company built on research excellence - the quality and impact of what we deliver is very important to us, but so is innovation (progress over perfect). We work collaboratively in a multi-disciplinary team of neuroscientists, software developers and business folk, and encourage curiosity and understanding in everything we do.

Role: You will work on the core assessment platform and its end-user applications (Node/React stack, containerised applications, NoSQL, AWS infra, Terraform, EKS, OpenSearch). You will work on solving business-critical problems, and you will have the agency to drive organisational change, exercise technical leadership, and generally improve the work life of your coworkers.

Apply:

- Canada: https://ca.indeed.com/job/senior-software-developer-full-sta...

- UK: https://uk.indeed.com/job/senior-software-developer-full-sta...

Blackshark AI | Software Engineer & Senior DevOps Engineer | Full-time | Austria or Remote EU | VISA sponsorship available

Vo to satellite and drone imagery is on the rise, while traditional image processing methods struggle to keep up. Our scalable AI platform enables custom model training on global features, providing real-time, on-demand geospatial insights with impressive speed and accuracy. We are turning months of manual work into mere minutes, and with much better results. We work with customers from various domains, from intelligence and defence, local and federal governments, to small and large enterprises, which requires us to have a lot of flexibility in how we deploy and maintain our services.

We kicked off in 2020 and have secured $35 million in series A funding from a lineup of top US and European investors, including Microsoft M12, Point72 Ventures, Maxar, In-Q-Tel, SAFRAN, and ISAI/Capgemini.

Tech Stack: Python, Fast API, PyTorch, Postgres, Redis

Infrastructure: Kubernetes & Docker, Linux, AWS & Azure, Azure DevOps, Terraform, ELK, Prometheus & Grafana, ArgoCD & Helm

Roles:

Senior Software Engineer - Data Plane Team: https://jobs.eu.lever.co/blackshark/17fbf310-ea37-435f-a198-...

Senior DevOps Engineer - Deployment Team: https://jobs.eu.lever.co/blackshark/b8997cb0-532e-444c-b18d-...

ML6 | Machine Learning Engineer, Data Engineer | Python, TensorFlow, PyTorch, GCP, AWS, Azure | Full-time | Amsterdam, Berlin, Munich, Eindhoven, Ghent (EU) On-site/hybrid

We are a Machine Learning consulting company that builds end-to-end Machine Learning solutions. By applying the latest AI research, we keep our clients at the forefront of innovation. If you are interested check out: https://www.ml6.eu/knowledge-hub/blog and https://www.ml6.eu/customers/cases

Work on innovative projects for the biggest clients across Europe such as Randstad, ASML, FUNKE, and many more! Whether it’s about leveraging LLMs to improve customer support, building data lakes on cloud platforms to improve storage or implementing models using sensor data for quality control. You can find it all at ML6. You will mostly work with Python and a range of ML frameworks such as TensorFlow, PyTorch, or HuggingFace Transformers to solve hard Machine Learning tasks and help bring these application into production by building data pipelines and cloud infrastructure on all of the major cloud providers (GCP, AWS, Azure).

Open roles include:

• Senior ML/Data Engineers

• Senior AI Consultants

• Senior AI Project Managers

• Industry Directors

• Junior ML/Data Engineers

and many more!

Apply now at the https://jobs.ml6.eu/

Altira Health | Remote (US) | Full-time | Founding Software Engineer (Interop) | https://www.altirahealth.com/

We're building an AI care platform to reduce ER visits, close care gaps, and guide patients to the right care at the right time. We're a pre-seed healthcare startup working with major providers to drive real outcomes. We have great runway, we're moving fast, and we have lots of leads that mean we can't build fast enough. We also believe in compliance and security from day 0.

We're looking for someone with deep healthcare integration experience to hit the ground running. Ideally they're a pragmatic backend expert to help us scale our integration platform as we continue to grow. The expectation is deep knowledge of healthcare standards. Integrations can be a full time role, but at a startup it's necessary to wear many hats. So this individual should also feel comfortable as a generalist who can jump in at any part of the stack.

Stack: Python, Django, GraphQL, AWS, TypeScript, React, Terragrunt/OpenTofu

Ideal: early-stage experience, deep experience in healthcare integrations (FHIR, HL7, etc.), thrives solving problems

Fair compensation + equity

JD and application: https://app.dover.com/apply/altirahealth/862317ca-7c42-4dc1-...

Roger Healthcare | Senior Backend + Full Stack Engineers | Remote or In-Person SF | Full-time

We're building the leading AI clinical documentation platform for home health already used across millions of patient encounters. Clinicians get back hours per day and report life-changing impact within days of using Roger. We ship LLM powered features weekly and are backed by top-tier investors.

Senior Backend Engineer: Own and scale core services using FastAPI, MongoDB/Postgres, Docker, and AWS. Build APIs and infrastructure around production LLMs, improve architecture and observability, and turn prototypes into reliable systems at healthcare scale.

Software Engineer (Full Stack): Ship end-to-end features with FastAPI, React/React Native, and modern tooling. Integrate directly with LLMs, move fast on MVPs, and evolve them into production systems clinicians depend on every day.

If you want to apply AI where it directly improves patient care and affects real users immediately, join us.

Interested? Reach out TODAY. https://www.rogerhealthcare.com/careers or yunus@rogerhealthcare.com

DevOps Engineer - ActivePrime Location: Remote (U.S. and Canada)

We’re a remote-first SaaS company building data cleansing tools for CRM data (Salesforce, Heroku).

Role:

Seeking a DevOps Engineer to scale AWS infrastructure and build systems in a fast-paced, remote environment.

Responsibilities:

Design AWS infrastructure using Python.

Build and maintain scalable systems.

Develop tools (Python, FastAPI, PostgreSQL).

Manage security policies.

Support our remote-first culture.

Requirements:

Experience with AWS and Python.

Ability to work independently in a remote environment.

Weekend availability (we release often).

Stack:

AWS, Python, FastAPI, NiceGUI, PostgreSQL, Vue.js

Email: usman.ashraf@activeprime.com

Trigger.dev (YC W23), we are currently hiring for 3 roles:

- Developer Relations Engineer | Hybrid UK or Europe remote | Full-time

- Support Engineer | Hybrid UK or remote | Full-time

- Senior Backend Engineer | Hybrid UK or Europe remote | Full-time

We are an open source developer platform for building and running managed workflows and AI agents, serving thousands of teams and handling hundreds of millions of executions per month.

We are looking for passionate devs who love solving challenging technical problems and want to directly contribute to a large commercial open source project.

Our stack: Node.js, TypeScript, Postgres, Redis, Remix, AWS

Learn more and apply here: https://jobs.ashbyhq.com/triggerdev

Hi HN! CrossnoKaye is a Series C startup tackling climate change by transforming the heavy industrial sector. Our platform uses real-time optimization, advanced modeling, and modern cloud infrastructure to deliver 40% average energy savings and megaton-scale emissions cuts across industrial facilities. https://crossnokaye.com/

We’re hiring for 3 roles and looking for builders who want their work to have real-world climate impact:

1. Sr. Software Engineer - Control Systems |REMOTE (US)| This role would have the opportunity to support our control systems infrastructure initiative, which involves real-time control strategies, secure cloud communication, and large-scale system performance, all built in Go with AWS and Kubernetes. Deep Golang experience is a must-have.

2. Sr. Software Engineer – App Team | REMOTE (US)| In this role, you'd be partnering directly with physicists and data scientists on our Applied Science team to productionize cutting-edge research in physics simulation and optimization algorithms. Must have strong proficiency in Python and its data science ecosystem (e.g., numpy, pandas).

3. Sr. Software Engineer in Test | REMOTE (US)| We’re looking for a hands-on engineer who loves Python, backend frameworks, and automated testing. You’ll design and implement test frameworks for our ATLAS and Energy AI platforms, ensuring reliability across distributed, cloud-based systems. Must have strong proficiency in Python.

Interested? Email our team: careers@crossnokaye.com -- Please include a resume and the title of the role you're interested in within the subject line.

Thank you & I look forward to hearing from you!

AllSpice.io | Senior Software Engineer (Automation / CI/CD) | Python/Go/TypeScript | Boston / San Francisco / REMOTE (US) | Full-time

AllSpice is building GitHub/GitLab + CI/CD + Copilot for hardware engineering teams (smart vehicles, rockets, robotics, medical devices, IoT). We recently raised our Series A and are hiring a senior engineer to own major components of AllSpice Actions, our automation engine for circuit design. Work spans backend (Go), Python automations, API integrations, and a Vue/TypeScript UI. You’ll help improve our platform, build integrations and help define hardware DevOps. Stack: Go, Python, TypeScript/Vue, Rust, Postgres, AWS, Docker Swarm, Terraform, GitHub Actions, Gitea. Hybrid in Boston/SF or Remote (US). Small, senior team; high ownership; salary + equity + full benefits.

Apply: https://allspice.io/careers

GovSignals (https://www.govsignals.ai/)| New York (hybrid) | Full-time | Platform Engineer We’re building GovSignals, the most advanced government-contracting AI platform. We've raised a $5.5 million seed round led by Unusual Ventures, and our team brings deep experience from Palantir and across the national security sector.

We’re hiring a Platform Engineer to work directly with our CTO to build the foundation that powers how we develop, deploy, and scale AI systems — high-performance services, modern runtimes, and tooling that make engineering at GovSignals fast, secure, and elegant.

Stack: TypeScript, Node, Cloudflare Workers, Kubernetes, Docker, Postgres, Terraform, AWS

Apply here: https://jobs.ashbyhq.com/GovSignals

ASBL | Full-Stack Engineers (Senior and Staff), Mobile Engineers, Devops Engineers | Hyderabad, India | ONSITE | 35-80L INR We're a fast-growing, profitable proptech 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: asbl.in/careers/software-engineering. Please mention you saw us on Hacker News.

Enveritas (YC S18, non-profit) | Backend Software Engineer | Remote (Global) | https://enveritas.org/jobs/

Enveritas is a 501(c)(3) nonprofit working on sustainability issues facing smallholder coffee farmers. We collect field data in 25+ countries and build systems for analyzing risks in coffee supply chains (including EUDR-related deforestation checks).

* Backend Software Engineer (Python, PostgreSQL/PostGIS, Docker, AWS, Terraform) - $135-$155k — https://enveritas.org/jobs/backend-software-eng/#10d7adef8us (worldwide remote)

Candid | Founding Engineer | Cambridge/Boston | Onsite/Hybrid

We're building a photo-sharing app that uses CV to automate the annoying parts of sharing photos with friends.

Stack: FastAPI, Postgres, Supabase, AWS. We have a mobile app in progress and an ML pipeline—need someone to own the backend, wire it all together, and ship.

Looking for someone who's: - Done real backend work (Python, FastAPI, whatever) - Deployed ML/CV to prod, not just notebooks - Knows their way around embeddings and similarity search - Cares about privacy/security (we're handling sensitive data) - Has shipped something real, ideally end-to-end

This is a founding engineer role. You'd work directly with me (CEO) and our mobile engineer. High ownership, fast pace, significant equity.

Bonus if you've done mobile integrations or been an early engineer before.

Cambridge/Boston based. Prefer onsite but hybrid works if you can hit the ground running.

nlm280@gmail.com | Subject: "Founding Engineer – Candid"

Drop your GitHub and a quick note about something you've built from scratch.

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.

–

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

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/

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 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 December 19 will typically receive a reply by December 29. 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.

Gaia AI | Fullstack Platform 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.

Preferred Years of Experience: >= 3

Our Stack: TypeScript, React, Mongo, AWS, React-native, Python

Company Size: 7 people

Company Location: Downtown Boston near South Station

Apply here: https://docs.google.com/forms/d/e/1FAIpQLSeXplH__tMz_EIRS4yq...

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