HelpMyCash | Senior AWS DevOps/SRE contractor | Remote EU/CET | Freelance + paid on-call

HelpMyCash is a Barcelona-based financial comparison platform. We're looking for a senior freelance DevOps/SRE to act as the operational safety net for a mature AWS production platform.

This is explicitly an insurance role: keep the platform reliable, no major evolution or greenfield work. The platform has run reliably for years (no critical outages unrelated to deploys/changes in 5+ years) — we want someone to keep it that way.

Engagement: ~4h/week retainer paid on-call for critical incidents planned/larger tasks quoted separately fully remote, EU/CET, reachable during Spanish business hours

Compensation: retainer + hourly rate + on-call premium for out-of-hours response. Exact structure and rates open to discussion based on your model.

Work: monitoring, alert triage, routine maintenance, incident response, certificates/security updates, and infrastructure decision-support. No application development or architecture ownership expected.

Stack: AWS Elastic Beanstalk, ECS, Lambda, RDS, ElastiCache, Redshift, S3, SQS, CloudFront, WAF, Route 53, IAM, CloudWatch; MongoDB Atlas, Elastic Cloud, n8n, Metabase, Sentry, Bitbucket Pipelines.

Looking for someone senior who can handle incidents independently and is comfortable with a stable-platform maintenance/on-call role.

Apply: https://uilab-n8n.helpmycash.com/form/devops-application?sou... (full job description linked from the form).

Sentinel Defense Technologies | Remote (Global) | Equity → Pre-Seed Closing

   We build real-time civilian threat intelligence for conflict zones — and we just landed our first operational pilot. Multi-model AI pipeline (Gemini 3 Pro / Flash) ingests OSINT from verified sources, runs it through a gated verification system, and pushes geolocated alerts to offline-first mobile clients. Think of it as a personal intelligence analyst for non-combatants — on a phone that works on 2G.

   This is not a pitch deck. We have a working system: Django backend is live, Flutter apps are approved on both App Store and Play Store, multi-gate AI pipeline is processing real OSINT, admin console has human-in-the-loop verification for high-severity alerts. Since our last HN post: 93 candidates vetted across two months, 1 Senior AI/Backend Engineer hired (now owns the verification pipeline), and we've begun an operational pilot with Winrock International for counter-trafficking intelligence in Southeast Asia. Pre-seed is imminent with multiple NGO grant applications under review (WFP, IRC Airbel, DRK Foundation).

   *We need one person*:

Founding Product Engineer / Systems Architect You will own the Django backend, MongoDB schemas, and the Flutter UI that connects them. Our AI pipeline lead handles the Gemini orchestration — your job is to own the data layer, build the API surface, and wire it directly into the offline-first client. This is not drawing backend diagrams. You must be an end-to-end builder who cares about how a civilian interacts with the system on the ground in a crisis. A bug in this system isn't a 500 error — it's a missed warning in a conflict zone.

   *Must have*:

Python/Django, MongoDB, Flutter (or high competence to pick it up fast), and system design thinking. Strong plus: DevOps (Docker, AWS), LLM integration, OSINT, geospatial.

We also welcome strong full-stack implementation engineers who ship fast and want founding-team equity. Same stack.

   *Compensation (No BS)*:

- Now: Sweat equity (12-18% SA / 5-10% FSD, 4yr vest, 1yr cliff). This is founding-team ownership. - Pre-Seed (closing): $3,000/month + equity.

- Seed (6-12 months): 75% market salary + equity. Increases from there.

If you need full salary today, this is not for you. If you want to build something where the stakes are real and you're willing to bet on yourself to get there — we should talk.

   *Stack*: 

Python 3.9+, Django 4.1.13, MongoDB, Flutter, Antigravity/Cursor IDE, Docker, AWS.

   *Apply*: 

Email: PeterJFrancoIII@gmail.com with subject line `[SENTINEL-BUILDER] - HackerNews Application`. To prove you read this, include the word "Atlas" in your first sentence. Include your Resume or GitHub + what you'd build in your first week. (Emails without the exact subject line are auto-archived.)

   https://www.sentineldefensetechnologies.co.za

Happy Returns | Engineering Manager | Remote, USA | Full-time

Happy Returns is solving one of e-commerce’s biggest pain points: returns. We combine proprietary returns software with reverse logistics, including box-free consolidated returns, to make returns better for shoppers, retailers, and the planet. We’re a UPS company, growing quickly, and our shopper experience has a 93 NPS.

We’re hiring an Engineering Manager to lead a team of 6–8 engineers. You’ll manage day-to-day execution, coach and mentor engineers, improve team productivity and agile processes, partner closely with Product, participate in architecture and technical design reviews, and help recruit and onboard new engineers.

You may be a fit if you have:

* 6+ years developing and testing web applications * 2+ years as an Engineering Manager * Strong written and verbal communication skills * Experience coaching engineers toward high-quality, maintainable, well-tested code * Comfort collaborating closely with Product, DevOps, QA, and other stakeholders

Bonus points for experience with Go, Python, React, PostgreSQL/MySQL/MongoDB, Docker, Kubernetes, AWS, e-commerce, logistics, or sustainability.

Remote role open to candidates in the United States. Must be authorized to work in the U.S.; we are unable to offer sponsorship at this time.

Apply: https://www.linkedin.com/jobs/view/engineering-manager-remot...

Location: Charleston, SC

Remote: Yes

Willing to relocate: Yes

Technologies: Ruby, Python, JavaScript (ES6), TypeScript, React, Node.js, PostgreSQL, MongoDB, OpenSearch/Elasticsearch, AWS (ECS, EC2, VPC, ALB, Secrets Manager), Docker, Terraform, OpenTelemetry, Jaeger, Prometheus

Resume/CV:https://drive.google.com/file/d/1aBYTxqlWIKmm59UT5ffK493tKR0...

LinkedIn: https://www.linkedin.com/in/zane-lee-14496a297/

Email: zanedev28@gmail.com

GitHub: https://github.com/Kcstills17

Co-creator of Retriever (https://runretriever.app/), an AWS-deployed observability platform that enables AI-powered trace analysis through distributed systems. Built a custom MCP server allowing developers to query trace data using natural language through LLMs like Claude, optimizing context consumption through intelligent data distillation from verbose OTLP structures.

Experienced with building full-stack applications. I am comfortable using AWS as a cloud environment and have experience with AI technologies such as RAG, MCP, and Vector embeddings.

Aptira | Fully Remote AUS/NZ | Full-time | Senior SRE

We're an Australian consulting company currently building out a multi region baremetal Kubernetes cluster for a client experiencing explosive growth and looking for SREs to help keep it running.

At the base: Kata Containers, Kyverno, Cilium, TopoLVM and Ceph

Workloads: Python microservices, Kafka, Postgres, Valkey and MongoDB

Observability using Grafana LGTM and automated using Ansible, Helm and BitBucket.

We're looking for a Senior SRE with some Kubernetes experience, decent security chops and good systems knowledge to help out on the platform engineering team. If that sounds like you, get in touch with us via careers <at> aptira <dot> com

Location: Rawalpindi, Pakistan Remote: Yes Willing to relocate: No Technologies: React, TypeScript, Node.js, Express.js, PostgreSQL, MongoDB, Flutter, OpenCV, Tailwind CSS, Bootstrap Portfolio: https://fatima-usman-dev-aovrrer.gamma.site/ Email: fatimaausman8@gmail.com

Frontend/Full-Stack Engineer with 2 years experience building consumer-facing applications. Led a 4-person team to 2nd place at EXPO'24 (COMSATS) for an AI-powered fashion platform with computer vision. Delivered full-stack features for retail tech and data analytics projects. Seeking remote frontend or full-stack roles with growth opportunities.

General Fusion | Senior HPC System Administrator | Richmond, BC, Canada | ONSITE or HYBRID (3 days/week) | Full-Time | $126k-$154k CAD | Immigration support for US candidates

General Fusion is a fusion energy startup (est. 2002) operating a fusion demonstration machine (LM26) at our Richmond, BC labs. We're hiring an HPC Admin to manage and evolve our Rocky Linux cluster (70 nodes, 1PB storage, SLURM) and help shape our broader research data infrastructure, bridging simulation and experimental data systems.

Stack: Rocky Linux, SLURM, InfiniBand, Apptainer, Prometheus/Grafana, HDF5/Parquet, DVC/LakeFS, ClickHouse/DuckDB, MongoDB

Requirements: 5+ years in scientific/HPC computing, 2+ years managing HPC clusters, strong Linux sysadmin background.

Apply here: https://workforcenow.adp.com/mascsr/default/mdf/recruitment/...

SerpApi | https://serpapi.com | Junior to Senior Fullstack Engineer multiple positions | Customer Success Engineer | Hiring Coordinator | Python/Ruby/PHP/Js/Rust/Cotlin/C#/Crystal/Nim/Elixir Developer Advocate positions | Based in Austin, TX but remote-first structure | Full-time | ONSITE or FULLY REMOTE | $150K - 180K a year 1099 for US or local avg + 20% for outside the US

SerpApi is the leading API to scrape and parse search engine results. We provide 100+ APIs to Google, Google Maps, Google Images, Bing, Baidu, and more.

Our current stack is Ruby, Rails, MongoDB, and React.JS. We are looking for more Junior and Senior FullStack Engineers.

We have an awesome work environment: We are a remote first company (before Covid!). We do continuous integration, continuous deployments, code reviews, code pairings, profit sharing, and most of communication is async via GitHub.

We value super strongly transparency, do open books, have a public roadmap, and contribute to the EFF.

Apply at: https://serpapi.com/careers

MongoDB | Senior/Staff/Lead Site Reliability Engineers (SRE) and Infra SWE, Multiple Teams | REMOTE (US) or HYBRID (NYC, Dublin) | Full-Time

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

SRE at MongoDB is a builder role. We are heavily focused on making the platform more scalable, resilient, secure and self-service.

We have open roles (Senior, Staff, Lead) across several of our core Infrastructure teams:

- Infrastructure Security (InfraSec): Building infrastructure security controls and security observability tooling leveraging eBPF and Linux security mechanisms.

- Fabric: Building out service mesh, networking, and internal traffic routing.

- Storage Layer Services: Building our next-generation disaggregated storage architectures.

- Fleet Management & Deployments: Automating the lifecycle, deployments, and control planes of massive multi-cloud Kubernetes clusters.

- Atlas Infrastructure: Building core infrastructure operations on hundreds of thousands of Linux servers.

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

- 5+ years of experience in SWE, SRE, or similar roles.

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

- Deep understanding of Linux internals, networking, distributed systems, and/or Kubernetes.

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

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

For any questions, or to apply directly (please mention HN) email: hani.benhabiles+hn@mongodb.com

You can view our open roles at: https://www.mongodb.com/careers/jobs

SonarMD | Senior Full Stack Engineer | Remote (US East/Central) | $180-220k+ | Unlimited PTO, healthcare, 5% bonus, 401k match

Healthcare AI company. We monitor IBD patients between doctor visits and catch clinical deterioration before it becomes an ER visit. Real patients, real outcomes, peer-reviewed studies.

Node/Express, React/React Native, Python, MongoDB Atlas, Postgres, AWS (EC2, Ansible, the real stuff, not just Lambda bingo). HIPAA/SOC2. Team of 5. Lots of data. More AI and ML in prod every other week. You will contribute to 5 and 6 figure mistakes and also the 6 and 7 figure outcomes. It's just another day in the life. You will discover your gaps quickly and then you get to close them. You will have real access and real responsibility. Your decisions will have meaningful impact on other people's lives. Some people struggle with that. You can't. You will own things. You will learn things. We will build things.

I am six interviews deep into candidates reading me AWS product pages after being asked about their approach to enrichment. If you have ever debugged something in production and have an opinion about literally anything, please talk to me. If you're interested: resume to eng.hiring@sonarmd.com.

If you're really interested: send a cover letter in .md format (no AI, I will know) with answers to: - Last 3 things you personally shipped to prod, preferably ones that failed or had unexpected results - Most recent thing you learned but are too embarrassed to admit you didn't already know - Your 3 biggest pain points working with AI/LLMs/agents - Most recent thing you built that you're legitimately proud of - Preferred tech stack - How many full, 8-hour-day, 5-day-a-week production shipping years you got under your belt, for real

The .md skips the line. I'll read it before anything else in the inbox.

MongoDB | Senior+ Developer Advocate | REMOTE (Europe + Remote, USA) | Full Time

My team is hiring for multiple openings for Senior+ Developer Advocate roles. We aren't just doing "content." My team is the technical "tip of the spear" for MongoDB’s largest global accounts.

- The Scale: You’ll be solving data architecture and performance bottlenecks at a scale very few engineers ever get to see. - The Impact: It’s incredibly rewarding to optimize systems for household-name companies and see the immediate ripple effect. - The Culture: You’ll join a tight-knit group of MongoDB experts who actually enjoy collaborating. - The Mix: This is a high-engagement role.

There are multiple open positions:

For significant travel to work face-to-face with devs, balanced with deep-dive technical work. Apply at https://www.mongodb.com/careers/jobs/7241758 (Europe)

For mostly remote, apply at https://www.mongodb.com/careers/jobs/7495485 (Europe) https://www.mongodb.com/careers/jobs/7571308 (USA)

If you have 5+ years of experience in consulting/SA/DevRel and want to bypass the recruiter screen, contact Hubert directly: https://www.linkedin.com/in/hubertnguyen/