SpruceID (YC W21) | REMOTE (US-Based Preferred) | Full-Time | spruceid.com

Spruce lets users control their data across the web. Instead of users logging into platforms, we believe platforms should request to access data vaults controlled by users.

The demand for trusted digital ID is accelerating as AI deepfakes begin to destroy most of the ways we use to verify identity today. How private or secure is it to hold your driver's license or passport up to a webcam to get a bank account? Was it ever private or secure? Stable diffusion can break so much of this already. Society will need trusted digital IDs, and our mission is to allow them to be controlled by individuals, with safeguards to prevent descents into surveillance states and checkpoint societies.

We are the main implementers of category-defining initiatives such as the digital ID program for the California DMV, and the verifiable digital credentials program in Utah. We are private sector participants in NIST's National Cyber Security of Excellence initiative for privacy-preserving digital ID.

Today, we are hiring highly capable engineers who care about making a real impact in improving public services, digital autonomy, and user privacy for the world. We work closely with public sector agencies, and everyone on our team has a high regard for those in the public service. We have a strong engineering culture. We are not a SaaS or AI company, and our roles are not for the faint of heart. You will be expected to work hard and learn a lot in this role.

Our engineers are incredibly ambitious. On any given day, they may write great Rust/C#/TypeScript, deal with mainframe dumps, read policy documents, respond to technical RFIs/RFPs, manage on-prem environments, implement new NFC + Bluetooth protocols in Swift/Kotlin, create CI/CD processes that enforce W3C accessibility guidelines and i18n requirements, rewrite lost specs from disassembled binaries, and design new protections for public key infrastructure. It is a team effort, and people with T-shirt shaped skills are able to collaborate and learn a ton from each other every day.

The potential impact of this work cannot be understated, and this is not the right job for you if you want to "join a cool AI startup" and make a fast exit. However, if you care about our mission, then you will have the opportunity to make meaningful outcomes for society that will make you feel proud.

See our roles here: https://jobs.lever.co/sprucesystems/

If you feel very strongly about what we do, please email me directly with your reasons and resume at wayne AT spruceid.com.

Meegos for soccer fans | Founding engineer | Remote | Full-time Join Meegos as our Founding Engineer. Our goal is clear - build the most beloved soccer app in the world. You'll own architecture, infrastructure, data pipelines, and end‑to‑end product experiences from day one. We're just getting started but have sights high, and the founding team to get there. You’ll prototype and ship fast, shape product direction alongside the founder, and leverage today’s best AI models and tools to deliver fan experiences no one else can. We’re looking for an AI‑native full‑stack builder fluent in React or React Native, Node or Python, SQL, modern APIs and integrations, with hands‑on experience using AI APIs and vector databases, strong communication, and 6+ hours overlap with PST. If you live the global soccer culture, thrive in early‑stage environments, and want meaningful equity, we’d love to hear from you — email Email is hidden with your LinkedIn or resume and a note on why you’re a fit.

Mission Control | Senior Full-Stack Software Engineer | Onsite - Ottawa, Canada | Full-time

Mission Control empowers explorers to advance their space missions. We innovate to make modern software viable to use in space, unlocking the potential of new scientific and commercial opportunities on Earth, Moon, Mars, and Beyond.

We are seeking enthusiastic candidates for the position of Full-Stack Software Engineer to play a key role in the development of Spacefarer - our Mission Control Software. We are looking for candidates who are passionate about space exploration and robotics; who want to contribute to growing a small company from the ground up!

If you are interested, please check out the role here: https://mcss.bamboohr.com/careers/65?source=awq9mti%3D

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KSC Trading | Remote | Full-Time | Senior Backend Software Engineer | $150k to $200k USD

KSC Trading is a propietary algorithmic trading firm founded in 2020. The company creates software to engage in automated trading in sports and prediction markets. It has been profitable since the first year of inception, and has significant and clear growth available. The initial focus has been on statistical arbitrage and liquidity provision.

The role would include maintaining and expanding the trading infrastructure. Example tasks would be integrating new exchanges, optimizing backtest speed/cost, integrating a new data source into backtesting, tracking production trade latency, etc. Current tech stack is based on Java, Google Cloud Platform, and Postgres. The team remains very small, and you would be working very closely with the founder.

Location: Remote with at least 4 hours overlap with US east coast working hours.

The company currently donates 20% of its profits. To apply reach out at Email is hidden with your resume.

Silkline | Onsite, Chicago/Seattle (5 days/week) | Full-time | Salary+Equity

We need help! and are looking to hire multiple full-stack or frontend engineers at Silkline.

Today, the way modern hardware supply chains work is like fax woke up in 2025 - spreadsheets, email, PDFs, and a lot of sadness. We are building AI-first platform to power the future of supply chains, focusing initially on the rising defense, space, and nuclear sectors.

Over the last year, we have grown considerably (5x'ed customer count) and brought on some massive logos in the industry. Join me and our deeply customer and product-oriented team, which has been shipping incredibly fast.

Stack: Typescript, React, Hasura, Trigger.dev, AWS, Pulumi, Elbow grease

Reach out to Email is hidden or apply: https://jobs.gem.com/silkline/am9icg9zddrlwseqtkka02ut_f9kgz...

SewerAI | Full-Time | Hybrid (Walnut Creek, CA — Tues/Thurs in office) | https://www.sewerai.com](https://www.sewerai.com

SewerAI is an AI-powered data platform transforming how cities, contractors, and engineers inspect and manage underground infrastructure. Our mission is to make “dirty, dull, and dangerous” sewer inspection work safer, smarter, and more efficient through cutting-edge computer vision, cloud collaboration, and machine learning.

We’re hiring a Staff Software Engineer to help architect and scale the core systems that power our AI-driven inspection and risk analysis tools. If you enjoy tackling complex technical problems and want to see your work directly improve how cities operate critical infrastructure, we’d love to hear from you!

We’re especially interested in candidates with experience in:

* Building and scaling distributed systems or large-scale SaaS platforms * Machine learning / computer vision deployment in production environments * Cloud infrastructure (AWS, GCP, Kubernetes, etc.) and data pipelines * Working in fast-paced, early-stage environments where collaboration and ownership matter

If you’re excited about applying advanced technology to real-world infrastructure challenges, check out the role here: https://jobs.ashbyhq.com/sewerai/staff-software-engineer

SpotHero | ONSITE (Hybrid-schedule) in Chicago or Toronto | Full Time

SpotHero is the leading marketplace for parking reservations. We help drivers easily reserve parking for commuting, events, or any reason they are out and about.

Our approach to onsite is flexibility first and much of our time is WFH. Feel free to apply online or reach out to me at tom dot janofsky at spothero dot com.

We’re hiring for a Sr Business Analyst, Sr IT Engineer, and Sr Security Engineer

https://spothero.com/careers/

Erdos Miller | Data Wrangler (Part-time → Full-time growth) | Remote (US preferred, flexible otherwise)

We build Measurement While Drilling (MWD) equipment — and we love it. That passion helped us capture the majority of the North American oil & gas market, and now it’s fueling our geothermal innovation, building underground navigation systems for the next generation of clean energy.

We’re now looking for a Data Wrangler to help us make smarter, faster decisions with our data. This role blends data engineering and data science: wrangling quirky file formats, structuring messy datasets, and turning it all into live tools that guide company strategy. Starts part-time with the opportunity to grow into a full-time, career-defining role. What you’ll do

Partner with the CEO + stakeholders to translate business needs into pipelines, dashboards, and tools. Build ETL pipelines, write parsers for proprietary formats, and maintain relational databases (PostgreSQL, MySQL). Create interactive dashboards/apps with Dash, Streamlit, or similar (we avoid Tableau/Excel hell). Deliver insights via live web apps where data isn’t static — it’s explorable. Tech we use Python, SQL (PostgreSQL/MySQL), S3, modal.com. Bonus: React/web dev experience to shape customer-facing real-time tools. Why you’ll like it here You’ll own projects end-to-end, avoid over-engineering (no Kubernetes, no Airflow — just the right tools), and directly influence decisions. As our company and data needs grow, so does your role. If this sounds fun, email Email is hidden with your background and what excites you about wrangling data.

PostHog | Full-Time | Product engineers, backend engineers, Technical AMs | REMOTE (all remote) | Hiring GMT-8 to GMT+2

PostHog helps engineers build better products by combining product analytics, feature flags, session replay, a data warehouse, CDP and many more.

* we have a public handbook (posthog.com/handbook) if you want to learn how we work, pay and more in complete detail.

* we are growing through more autonomy and transparency not through process.

* we have a ton of scale and a bunch of super interesting technical problems to solve

* we're building 20 more products over the next couple of years, so you could end up building one of those

* we need: product engineers, developer who loves writing and a developer who can do marketing, backend engineers, AI product engineers, technical account managers and technical customer success managers.

https://posthog.com/careers

ISRG / Let's Encrypt | https://www.abetterinternet.org/careers/ REMOTE (US) Director of Advancement (Corporate Sponsorships) Assistant Director of Advancement (Grants)

Our mission at ISRG is to reduce financial, technological, and educational barriers to secure communication over the Internet. We operate three projects (Let’s Encrypt, Prossimo, and Divvi Up) that improve the security and privacy of billions of people using the Internet.

ISRG was founded 12 years ago as a 501(c)(3) nonprofit. Throughout our history, we’ve grown and diversified our revenue to respond to evolving needs and ambitions within our organization. We operate as a combined comms and fundraising team because we view the two functions as symbiotic. As such, we highly value and deliver strategic, compelling, and effective communications which are the wind in the sails of our successful fundraising.

We are looking for experienced fundraising development professionals to help strengthen and diversify our funding channels. Please share with anyone you know who might be a fit! Thank you!