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Sphinx Defense | Engineering, DevOps, & Product | Remote (US Only), DC, Colorado Springs, LA | https://www.sphinxdefense.com

Sphinx Defense builds software to solve complex national security problems for America and its allies. Founded by engineers and technologists with deep experience across commercial and defense technology, we're building a vehicle-agnostic communication infrastructure to enable satellite operators to securely utilize antenna networks and maneuver satellites in real-time. We're bootstrapped, profitable, and growing aggressively.

To learn more about who we are, our engineering culture, and whether this is the right place for you, read our Key Values profile: https://www.keyvalues.com/sphinx-defense

Our current openings are: Sr. Backend Engineer - Colorado Springs : https://grnh.se/7184c0238us

Sr. Backend Engineer - Remote : https://grnh.se/3ef2598b8us

Don’t see a role that aligns with your interests or don’t have the specific Space/ Command & Control experience? Apply to the general interest application and list what type of role you would be interested in : https://grnh.se/4ce199d68us

Check out our open roles: https://www.sphinxdefense.com/#careers

Triumph Financial | https://triumph.io | Engineer (Senior | Lead | Staff) & Senior Product Manager | REMOTE (USA only) | Full Time | $150-$300k

At Triumph Financial, we’re building the modern freight payments network powering over $37B in annual volume. Our mission is to make freight transactions seamless, accurate, and secure, helping an entire industry move faster.

We’re hiring across multiple levels in Engineering and Product Management. Our teams are small (3–5 engineers), autonomous, and rotate quarterly to stay fresh and cross-functional.

Tech we use: We’re language agnostic and hire for fundamentals. Our teams work across a mix of:

* Ruby on Rails / Elm

* Java / React

* C# / React

If you’re a strong engineer who loves solving complex problems, mentoring others, and building real-world systems that move money at scale, we’d love to talk. We’re looking for people who are:

* Curious and collaborative

* Obsessed with product quality and user experience

* Excited to work on distributed systems and modern financial infrastructure

We also have an opening for a Senior Product Manager.

How to Apply:

Senior (it says Ruby, but will hire for others too): https://tbkbank.wd1.myworkdayjobs.com/en-us/tfin/job/senior-...

Lead: https://tbkbank.wd1.myworkdayjobs.com/en-us/tfin/job/lead-so...

Staff: https://tbkbank.wd1.myworkdayjobs.com/en-us/tfin/job/staff-s...

Senior Product: https://tbkbank.wd1.myworkdayjobs.com/en-us/tfin/job/senior-...

Please put “Ash HN” or something similar in the referrals so we can bubble you up.

If you have questions, feel free to reach out directly at aanderson at tfin dot com.

Findigs | Full-time | NYC | 3x/week in office M,T, Th) | findigs.com

At Findigs, we’re transforming the rental experience — making it fairer, stress-free, and more convenient by changing the fundamentals of renting.

We build high-scale applications that streamline renting for millions. Our modern tech stack includes TypeScript, Python, Node.js, React, and scalable cloud infrastructure.

We foster a collaborative culture where engineers have high ownership and autonomy, taking features from concept to deployment.

Join our sharp, supportive, and mission-driven team in our newly renovated SoHo/NoHo office.

Open role: Senior Software Engineer —> Apply here (https://jobs.lever.co/findigs/3b39616d-223f-4326-a500-f804c3...)

Base Salary of $180k - $210

Pre-IPO Equity

401k Matching up to 4%

Unlimited PTO

Lunch in office every day, home office setup stipend, monthly gym stipend

Protege | Remote (US) | Full-time | Mid / Senior / Staff Generalist & Data Engineers | https://withprotege.ai

Protege is looking to solve the biggest unmet need in AI — getting access to the right training data. The process today is time intensive, incredibly expensive, and often ends in failure. We’re building Protege to facilitate getting the right training data to AI companies.

We’re ~1.5 years old, lean, and well funded. We are growing and looking for exceptional engineers to build with.

Please apply at https://jobs.ashbyhq.com/protege or email us at Email is hidden if you don’t see a job that fits.

Count | Senior Software Engineer | REMOTE within UK/Europe/US East Coast | Full-time | https://count.co | £100-140k + Equity

Count is like Jupyter, Tableau and Miro combined in one tool. Some of the world's leading data teams use it for everything from iterating data models and performing in-depth analyses to creating process flow maps of their entire business.

We're a small team looking for experienced software engineers who are interested in tackling deep technical challenges in the data analytics space.

For the best possible user experience, we have developed various technologies in-house, including a custom WebGL rendering engine, our own data visualization library, and a reactive SQL/Python notebook and database query framework.

Example projects: leveraging agentic workflows in data exploration, accelerating rendering using quadtree tiling, extending interactivity and customizability of visualizations, developing serverless frameworks for executing database queries at high concurrency.

Our tech stack: TypeScript, Python, Node, WebAssembly, WebGL, Apache Arrow/Parquet, DuckDB, Kubernetes, React.

For more details and to apply: https://jobs.ashbyhq.com/count

Scorecard | Founding Engineer, Founding UX Designer, Founding GTM | SF, CA ONSITE | Full-time

Scorecard is building the leading platform for testing, evaluating, and monitoring AI applications. We help teams ship reliable AI products faster—from prototype to production. Our customers include developers and enterprises building with LLMs who need confidence their AI agents perform as expected.

We recently raised $3.75M in seed funding from Kindred Ventures, Neo, and angels from OpenAI, Google, and Meta: https://www.businessinsider.com/scorecard-raises-millions-ki...

See how we're helping enterprises like Thomson Reuters ensure their AI agents are production-ready: https://www.thomsonreuters.com/en-us/posts/innovation/from-t...

Tech Stack: Full TypeScript w/Next.js, Express, React, PostgreSQL, and agents like Claude Code/Gemini review.

We're an early-stage, fast-growing team tackling the most pressing problems in the AI reliability space. If you're excited about being a founding team member at a company defining how the industry evaluates and optimizes AI systems, we'd love to hear from you.

Open Roles:

- Founding Software Engineer: Build the core platform that helps developers test and evaluate AI agents at scale - Founding UX Designer: Design intuitive experiences that make complex AI evaluation accessible to all developers - Founding GTM: Help define and execute our go-to-market strategy as we scale with customers

Learn more and apply: Email is hidden w/ subject 'HN'

Greptile | Software Engineer | ONSITE San Francisco (SF) | https://greptile.com

Greptile is working on AI agents that catch bugs and enforce standards in pull requests. Reviewing nearly 1B lines of code a month for 1000+ companies including Brex, Substack, Whoop, as well as multiple F100s.

<20 people, raised ~$30M from Benchmark, YC, Paul Graham, SV Angel and others.

To apply, email Email is hidden with subject line "Engineering at Greptile". Include most recent role and company and links to your LinkedIn and GitHub.

YourTechResume — Founding Engineer Remote (Global) | Full-time | $150k-$350k

About: AI-powered platform for resume optimization and job application automation.

Role: Build technical foundation as the first engineering hire. Own end-to-end features (Python/FastAPI/JS), architect scalable systems, and shape product direction. Ideal for builders who thrive in ambiguity.

Tech Stack: Python, FastAPI, SQLAlchemy, JavaScript, Anthropic Claude, AWS, Stripe, Docker.

Requirements:

Strong Python fundamentals Full-stack experience (personal projects count) Product-minded, self-directed, fast learner Nice-to-have: FastAPI/Django, AI/ML APIs, Stripe, AWS, LaTeX/startup experience Offer:

Founding equity + competitive salary Direct founder collaboration Flexible hours, modern tools Apply: Email resume + GitHub/portfolio + 3-5 sentence note to info at yourtechresume.com

SalesJack | Data Engineer | Hybrid (Hamilton/GTA Canada) | C$130K-C$150K + equity and benefits | salesjack.com

SalesJack is a sales software platform (CRM, Prospecting Service) for independent businesses in the construction supply industry. We are growing quickly and profitably. Our founding team and customers are based in the US, and we aim to grow engineering capabilities in Canada.

This role is responsible for leading our data pipelines development. SalesJack operates data ETLs from sources like client ERPs (enterprise resource platforms) and municipality open data to power our CRM features. You will collaborate directly with founders and lead engineers at the company and help:

- Enable scalability in our pipelines as we onboard more customers and data sources

- Setup visibility, monitoring and alerting in all parts of our ETL processes

- Allow plugging in AI led transformations at the right stages of our pipelines, and enable this to be done easily

- Lead RnD effort for AI toolings that transform a lot of manual work in the industry

We are looking for:

- 3+ years of data wrangling and pipeline scaling experience. We prefer if you have done so with a focus on reliability and efficiency (both in terms of compute and costs) in the past.

- Someone who loves experimenting with data, regularly tries out new tools, and enjoys exploring the possibilities of AI and machine learning—especially large language models (LLMs)—we want to hear from you.

Our hiring process will be:

1. Initial call with our founding engineer to briefly discuss your experience and introduce SalesJack ~ 30mins

2. Technical Exercise (this will a live coding on a screen-sharing call where we will ask you to work on some problem) ~1.5 hours

3. Call with one of our founders to see cultural fit ~ 30mins

4. Offer

Apply at https://jobs.ashbyhq.com/salesjack/5645b4c3-dc1b-4021-83d4-2... and mention Hacker News