Coast | Platform Engineer (Security), DevSecOps Engineer & Full-stack Product Engineer| Hybrid | NYC

Coast is re-imagining the trillion-dollar U.S. B2B card payments infrastructure, with a focus on the country’s 500,000 commercial fleets, 40 million commercial vehicles, and many million commercial drivers. Coast's mission is to deliver modern digital experiences, affordable and transparent financial services products at a transformational scale, and to improve working lives in one of the country’s biggest industry sectors.

Coast is competing and winning with software, and we are building a world-class engineering team. We are looking for a Platform Engineer (Security)/DevSecOps Engineer - first of it's kind at Coast, with high ownership, impact, visibility. We are also looking for full-stack product engineers across mid to senior levels.

If interested, please apply:

Product Engineer: https://job-boards.greenhouse.io/coast/jobs/4000170004 Base: $160,000 - 215,000 + equity + benefits + equity and fun perks!

DevSecOps/Platform Engineer/Security Engineer: https://job-boards.greenhouse.io/coast/jobs/5816914004 Base: $160,000 - $180,000 + equity + benefits + equity and fun perks!

Tango Me | Senior Backend / Frontend / Android / QA | Limassol, Cyprus | Hybrid | Relocation

Tango is a live-streaming platform with 400M+ registered users — high-scale B2C at the intersection of video streaming, creator economy, and social features. I'm an Engineering Manager building two product teams focused on activation and retention. Looking for engineers who take ownership and push back when something doesn't make sense. Backend: Java 17–21, Spring Boot, GCP, Apache Kafka, MySQL, Redis, Aerospike Frontend: React 16+ (hooks), TypeScript/ES6+, Redux + Redux Toolkit, SASS, Jest Android: Kotlin/Java, Dagger2, Compose UI, Kotlin Flows, Coroutines Open roles:

Senior Backend Engineer Senior Frontend Engineer Senior Android Engineer QA Engineer (automation-focused)

Relocation to Limassol, Cyprus: full relocation package, work permit + residence permit for spouse, hybrid (1 remote day/week), stock options, competitive salary + performance bonus, medical insurance, meals in office. Careers: https://business.tango.me/careers Direct contact: https://t.me/joetribbb

OneChronos | Systems Engineers + Software Engineer, Data Platform | NYC (HQ), London or Amsterdam | Flexible / Remote | Full-Time

We offer a strong engineering culture and are looking for engineers to design and optimize high-performance trading systems that power our periodic auction matching infrastructure.

We build production systems in Rust and are seeking engineers with meaningful Rust, C++, Java, or Python experience, particularly from backend or systems-oriented environments.

Systems Engineer Systems programming role focused on low-latency, high-throughput distributed computing. Work across order and data workflows, auction execution, reliability, and performance optimization to ensure the platform is efficient, fault-tolerant, and capable of complex trade matching at scale.

We’re especially interested in engineers who: Have built backend or systems-level software Care deeply about performance, concurrency, and correctness Are motivated by real-time, performance-sensitive systems Have experience with compilers, static analysis, or language tooling (a strong plus)

Software Engineer, Data Platform Build and evolve the infrastructure behind our analytics platform. The role sits between data engineering and backend development and focuses on high-volume, time-sensitive data pipelines and workflow systems that process terabytes of trading data and billions of rows daily.

We’re especially interested in engineers who:

Have built internal data platforms or large-scale pipelines (Python/SQL; Rust a plus) Have experience with workflow orchestration (Temporal, Airflow, Dagster, etc.) Have worked with large datasets, columnar formats (Parquet/Arrow), and production data systems

CONTACT: careers@onechronos.com – please include “HN” in the subject line. ADDITIONAL OPENINGS: https://www.onechronos.com/careers/

Apple | SRE | San Diego | Full-time

You will work closely with developers who are building applications in Python and JavaScript, ensuring their code runs seamlessly in production. Your role will involve driving solutions for hybrid infrastructure (both on-premise and public cloud) and architecting our AWS-based platform. You will manage technologies such as Pulumi, Argo, Docker, Kubernetes, Postgres, and DataDog, combined with custom Apple software and tooling. You will oversee and enhance the CI/CD pipeline and support deployment of QA’s automated testing. You will monitor performance of the infrastructure and identify areas of improvement. You will identify infrastructure needs for new projects and coordinate with developers to ensure they are factored into the development process.

Apply here: https://jobs.apple.com/en-us/details/200648948/tools-and-pro...

MongoDB | Staff/Senior Security Software Engineer or SRE - Infrastructure Security | REMOTE (US) or HYBRID (NYC) | Full-Time

We are looking for experienced Software and Site Reliability Engineers to help secure the foundation of MongoDB Atlas, our globally distributed, multi-cloud database platform running across AWS, GCP and Azure.

This is a builder role, focusing on security tooling and observability, runtime detection, hardening policies, and infrastructure-as-code guardrails that protect our massive infrastructure.

Some of the things we're working on:

- Building secure-by-default infrastructure leveraging Linux, eBPF and Kubernetes security mechanisms, and implementing runtime detection and monitoring.

- Developing our in-house CSPM (Cloud Security Posture Management) and Vulnerability Management platforms.

- Integrating security directly into our CI/CD workflows and Terraform pipelines.

We're looking for engineers with a strong systems mindset who have some of:

- 5+ years of experience in SWE, SRE, or similar roles with some relevant security experience.

- Proficiency in one programming language: Golang, Rust, Python, C/C++ etc.

- Deep understanding of Linux internals, networking, and Kubernetes security.

- Familiarity with one major cloud provider (AWS, GCP or Azure.)

- A builder's mentality: you think about failure modes, observability, and operability alongside security and correctness.

For any questions, or to apply (mention HN): Email: hani.benhabiles+hn@mongodb.com JD: https://www.mongodb.com/careers/jobs/7727896

Other SRE / Infrastructure teams as are also hiring. Happy to help.

Eequ | Senior Backend Engineer | Remote (UK) | Full-time | £80k–£110k | Node.js, NestJS, TypeScript, MySQL, AWS, Terraform

Join a disciplined, senior team responsible for the platform behind Eequ, where engineers have real ownership and operate with high autonomy.

We are the market-leading supplier to local authorities in the UK for council-funded activity programmes and we also serve thousands of independent providers. Our platform handles bookings, payments, and sensitive data at scale. We are profitable, bootstrapped, and growing.

What you'll do Build and operate the backend platform that powers a real marketplace handling bookings, payments, and reporting for thousands of families and providers.

Design and ship features from API design through database models to deployment Make architectural decisions and communicate them clearly to the team Own our AWS infrastructure, CI/CD pipelines, and keep production healthy with observability and alerting Lead incident response when things break, find root causes, and drive follow-ups Improve database performance, query patterns, and data pipeline as usage grows.

Stack: Node.js, NestJS, TypeScript, MySQL with TypeORM, Redis, AWS (EC2, RDS, S3, CloudWatch), Terraform, Turborepo monorepo.

Apply via eequ.org/careers or email directly: avida@eequ.org

Revelare Networks / Mobile Software Engineer/ Fully Remote/ Full-Time/ US Citizen

We are hiring a Mobile Software Engineer with extensive experience in Android (Kotlin/Jetpack Compose) and iOS (Swift/SwiftUI). The salary range for this position is $110,000 - $155,000, depending on experience level.

You must be a U.S. citizen for this position

Please apply here: https://apply.workable.com/revelare-networks/j/3B32865D60/

Shapes | Fullstack Engineer (AI Product) | ONSITE | San Francisco | Full-time

We’re building an AI chat platform where humans and AI interact in group chats, voice, and video.

Small team, high ownership, ship fast. We talk to users and build things we actually use.

We’re looking for a fullstack engineer to build product features end-to-end.

What you’ll do: - Build and ship features across frontend and backend - Work on real-time chat, onboarding flows, and AI interactions - Own features from idea → production - Collaborate closely with design and iterate quickly

Tech stack: React / Next.js, Python, real-time systems

Looking for: - Strong fullstack experience - Product mindset (you care about UX, not just code) - High agency - you move fast and take ownership

Apply: https://jobs.shapes.inc

Solace Health | Multiple Engineering Roles | REMOTE (US) | Full-time | No visa sponsorship offered

We're hiring Typescript Engineers on all our core groups as we're poised to double the size of our 90-person Engineering team this year.

We're Solace Health. In four years, we've provided free healthcare advocacy to over 225K patients on Medicare, and soon we're opening access to everyone in the US. We exist to make sure nobody in the US has to navigate their healthcare journey alone. We hit Unicorn status after our February Series-C led by IVP, bringing us to $207M raised and a $1B valuation. Compensation and benefits are highly competitive and includes equity!

Open Roles

- Senior Full Stack Engineer ($150k-$200k)

- Senior Backend Engineer ($150k-$200k)

- Staff Software Engineer ($200k-$225k, Fullstack or Backend lean)

- Technical Lead ($200k-$230k, player/coach people managers)

Tech Stack

Typescript with ReactJS and NodeJS plus NestJS, PostgreSQL, GCP, SQL, TypeORM, and shadcn for our UI Library

APPLY HERE

https://jobs.ashbyhq.com/Solace?utm_source=x4QJmBQEg7

If you want to build fast with high autonomy and believe in strong typing as much as we do, we'd love to hear from you!

Sage | Remote (Florida, Texas, Oregon, Washington) | Business Development Executive

Sage is a senior-living technology platform that connects care management, staffing, and analytics to improve clinical and operational outcomes. The platform includes a caregiver-facing care app, EHR integrations, AI-powered data and recommendations for staffing and level-of-care decisions, analytics and reporting, and integrations with nurse-call and life-safety hardware. It is designed for use across the continuum of senior care (independent living, assisted living, memory care, and skilled nursing) to reduce response times and fall-related hospitalizations, improve caregiver satisfaction, and drive financial performance for communities.

You’ll be at the forefront of our sales team, driving revenue growth and building strong relationships with senior care communities across the country. You’ll work closely with our CEO, sales, and cross-functional teams to develop and execute a strategic sales plan, manage the full sales cycle, and close new business and expansion opportunities. This is a high-ownership role for someone who loves selling, thrives in a fast-moving environment, and wants to accelerate their craft quickly.

What You'll Do - Own the end-to-end sales process: prospecting, discovery, demos, pricing, negotiation, and close - Build and manage a strong pipeline within Assisted Living/Senior Living markets - Develop trusted relationships with decision-makers and senior stakeholders at target communities - Partner closely with the broader team to refine messaging, process, and go-to-market strategy - Bring a “challenge the status quo” mindset and help prospects understand the business impact of modernizing care delivery

Application details: We are committed to having a transparent and bias-free selection process that is inclusive to all applicants. To apply: https://www.sagehealth.com/company/careers#open-roles

Joom | https://about.joom.com/ | Portugal, Lisbon (onsite) | Full-time | Visa | Relocation

Joom Group is an international tech-centric group of e-commerce companies founded in 2016 in Latvia. We are here to transform the largest industry in the world, global trade, making it more transparent, efficient, and technology-driven. Today, Joom Group brings together the following businesses: Joom, a global cross-border marketplace; JoomPro, the first and only end-to-end cross-border B2B marketplace; JoomPulse, an AI analytics tool for Mercado Livre sellers; and Onfy, a pharmaceutical marketplace in Germany. Joom Group’s offices are located in China, Brazil, Portugal, Latvia, and Germany, with headquarters in Lisbon, Portugal. We work as one international team, sharing knowledge and collaborating across countries, businesses, and products.

We are hiring for:

- Top-tier Software Engineer: https://joom-group.breezy.hr/p/eb4507ce63da-top-tier-softwar...

- ML/AI Team Lead at JoomPro: https://joom-group.breezy.hr/p/d1b87e5b32c1-ml-ai-team-lead-...

- Lead Backend Developer (Go) at JoomPro: https://joom-group.breezy.hr/p/df9b90d18230-lead-backend-dev...

- Senior ML Engineer (Search/Marketing Automation): https://joom-group.breezy.hr/p/fe927632328f-senior-ml-engine...

- Senior Backend Developer (Go): https://joom-group.breezy.hr/p/fe927632328f-senior-ml-engine...

- Senior/Middle DevOps / Site Reliability Engineer: https://joom-group.breezy.hr/p/439e666fe481-devops-site-reli...

Engineering Director, Developer Experience | Company: Adyen| San Francisco | Hybrid |

We are seeking a visionary, and experienced Director of Developer Experience (DevX) to lead our global customer experience efforts. In this leadership role, you will be the strategic advocate and driver for ensuring our merchants and partners experience a world-class platform integration. You are instrumental in shaping the developer journey, ensuring that integrating with Adyen is not just easy, but a genuinely superior experience.

You will live and breathe our public APIs, SDKs, and documentation. You will identify where developers face friction and then build the tools and shape the content to eliminate it. This is a role for a builder and a communicator who wants to have a direct, tangible impact and redefine the standard of integration for thousands of developers worldwide.

https://job-boards.greenhouse.io/adyen/jobs/7419377

SEEKING | AI/ML Engineer | Auburn AL → SF/Seattle/NYC/Remote | F-1 STEM OPT through Feb 2028 (no sponsorship needed)

4 yrs production GenAI: AWS Bedrock RAG (92% recall, HIPAA), LangGraph multi-agent copilots shipped to prod, QLoRA/LLaMA 2 fine-tuning, LangChain/LlamaIndex, Python, Docker/K8s.

Co-author ACL 2024 (healthcare AI). MS Data Science UNT 2024. Currently ML Research Scientist @ Auburn (multi-agent VLMs).

Open to: Applied Scientist / ML Eng / GenAI Eng / AI Eng

Email: ksaimanikanta4@gmail.com GitHub: github.com/saikasireddy Resume: [https://docs.google.com/document/d/1pjp-I0XfRP96fxu-nbIdOAVQ...]

Proven Software | QA Analyst | REMOTE (US) Full-Time | $85k-$110k

We've hired three developers from HN and now we're looking for a QA Analyst to join the team.

Proven is a start-up software company delivering a modern electronic medical record (EMR) to behavioral health and physical therapy. Proven's Founders and Executive team have decades of experience successfully growing and scaling companies in healthcare. Our mission is to deliver an innovative and impactful solution to healthcare providers leveraging modern technology. At Proven, we are looking for bright, hard-working, and highly motivated individuals who want to be a part of our fast-growing company.

4+ years software QA testing experience required. Manual testing across our EMR platform — functional, regression, and usability. Strong understanding of SDLC and Agile. Experience building out automated testing processes, EMR/healthcare software, HIPAA, or SQL are bonuses but not required.

We primarily work ET hours but are flexible. Excellent PTO and employer-sponsored healthcare benefits.

Email us at: hiring AT provensoftware DOT com

Greenhouse Software | Engineering Manager (Analytics Product) | REMOTE (Ontario or BC, Canada) | Full-time | We're unable to support sponsorship at this time.

Greenhouse is the company dedicated to making hiring work for everyone. We help over 7,000 companies meet their hiring goals, and over a million job seekers find their next job with our MyGreenhouse product.

The Role: We're looking for a hands-on Engineering Manager to lead our Data Experience team of 7. This team owns our full user-facing reporting and analytics product. It's a high-impact role where you'll lead the strategy for how our customers visualize and interact with their hiring data at scale.

Our Tech Stack: Ruby on Rails, JavaScript, TypeScript, React.

Requirements: - 5+ years of experience as a product-focused full-stack software engineer; 1+ year of people management experience. - Deep understanding of RESTful API design principles and distributed system architecture - Demonstrated proficiency in modern programming languages/frameworks (preferably Ruby/Rails, JS, TS, React) - Demonstrated ability to manage cross functional collaboration with Product and Design - Demonstrated knowledge of SDLC fundamentals

Compensation: National pay range: $142,700 - $214,100 CAD

If you're interested, please apply directly through the job posting: https://grnh.se/jmara1dr1us

I'm building Diamond Hands Fantasy — think fantasy sports meets Wall Street. Users draft S&P 500, Nasdaq-100, and DJIA stocks into C-Suite roster positions (CEO, CFO, COO, etc.) and compete head-to-head in weekly matchups based on actual market performance. Same skill-game legal framework as DraftKings/FanDuel. Incorporated Delaware C-Corp, fully spec'd, prototype built, GTM ready. Looking for a CTO co-founder who can own the technical stack end-to-end. Stack is Next.js, React Native, Supabase, Postgres, Redis, BullMQ, Polygon.io for live market data. Ideal background: fintech, gaming, or real-money platforms. Product ownership mindset over contractor mindset. Equity: meaningful co-founder stake with standard vesting. Based in NYC. Remote-friendly for the right person. Reply here or email [diamondhandsfantasy@gmail.com].

Lucia Protocol Remote | Full time | https://www.luciaprotocol.com/

Lucia Protocol is at the forefront of AI-driven data infrastructure, building the future of decentralized ad attribution. We are redefining how brands, publishers, and communities leverage Web3 to accurately track, attribute, and reward digital actions. Our team is innovating where AI, blockchain, and decentralized ecosystems intersect to power transparent and efficient ad measurement solutions.

We are hiring for:

- Chief Technical Officer (CTO): https://www.indeed.com/job/chief-technology-officer-cto-d625...

- Senior ML Engineer https://www.indeed.com/job/sr-ml-engineer-06c5b4f007aac3db

Rainbow Insurance (https://www.userainbow.com) | Backend Software Engineer | Full Time | Hybrid (2 days on-site in San Francisco) | Golang Rainbow is a tech-enabled small-business insurer. We built software that underwrites small businesses (starting with restaurants) and evaluates them against various risks to provide them with insurance policies. We've been live for only 2.5 years but already one of the top insurers of restaurants in the US. We are looking for an experienced software engineer to join our team and help us grow and innovate. We've raised around $20m to date with a series A around end of 2024. We've grown massively over the past year. Most of our problems we're currently working on are about building tech as we expand out to other categories of insurance and insuring other types of businesses.

Job Requirements:

- 5+ years of professional experience as a software engineer

- Experience in fintech is an optional but major plus

- Familiarity with our tech stack (Golang, React through a Next.js app, GraphQL, PostgreSQL) is beneficial but not required

Why You’d Enjoy Working with Us:

- You're joining a small fast paced team: 12 engineers, 40 people total

- Direct impact on solving real-world problems for small businesses

- Hybrid work model with 2 days on-site in SF

- Competitive salary and benefits

If interested, please reach out at hn@userainbow.com with your resume attached to the email.

You can also visit our site to learn more: https://www.userainbow.com/about

VozParking | Founding Engineer / Technical Cofounder | Netherlands / Europe / REMOTE | Equity

VozParking is an early-stage mobility startup focused on helping drivers make faster, clearer parking decisions under pressure.

This is not meant to replace Google Maps or Waze. It’s a parking decision layer that sits on top of navigation tools, with voice as an important part of the interaction model to reduce phone use while driving.

Current stage:

early prototype exists core product logic is clear next milestone is a usable, testable MVP

Looking for:

a genuinely hands-on founding engineer / technical cofounder strong builder mindset comfortable across product + engineering interested in real-world interaction, systems, and usability challenges wants to build long-term, not freelance or advisory-only

If aligned, email: danielceo@vozparking.com Please include a short intro, what you’ve built, and how you like to work in early-stage products.

Matcha | REMOTE (Europe / Canada / US) | Full-time | https://matcha.fm

Building Matcha and putting together a founding team.

If you want to be close to the product, have real ownership, and work with people who care about what they ship — read on.

Full-Stack / Frontend / AI Engineer — https://matcha.fm/apply/fse

Designer — https://matcha.fm/apply/design

Product — https://matcha.fm/apply/product

Growth / GTM / Marketing — https://matcha.fm/apply/marketing