Webflow Developer & Webmaster (Remote / Part-Time)At Rumzer, we are building something special, and we are looking for a talented, self-motivated Webmaster to help us grow.
We are seeking a dedicated professional to take ownership of our website's development, deployment, and ongoing upkeep.If you enjoy the fast-paced, collaborative energy of a startup and take pride in crafting beautiful, high-performing websites, we would love to welcome you to our team!
Flexible & Remote: This is a fully remote, part-time position (80 hours per month), giving you the flexibility to work from anywhere while making a significant impact.End-to-End Ownership: You will be the go-to expert for our digital presence, building out new pages in Webflow, maintaining site health, and deploying updates seamlessly.SEO Fundamentals: You will implement basic SEO strategies to ensure our site not only looks great but is easily discoverable.Experience: At least 5 years of professional experience as a Webmaster, with a minimum of 2 years working extensively in Webflow.Startup Ready: A positive, self-motivated attitude with the ability to successfully navigate and thrive in a fast-paced, evolving startup environment.Language: Fluent English is required.
If you also speak Spanish or German, please let us know in your application, as bilingual candidates will receive preferential treatment!
We are a kind, driven, and supportive team eager to find the right person to manage our online home.
If you are an experienced Webflow professional looking for a rewarding part-time opportunity, we would be thrilled to herosoft SNDS , Yahoo Sender Hub ) along with third-party tracking tools (GlockApps , Validity/ReturnPath , MXToolbox , DMARCian ).
Requirements
Must-Have Technical Stack & Skills
Systems Engineering Background: 5+ years of experience as a Linux Systems Administrator, DevOps, or Infrastructure Engineer with deep networking knowledge (TCP/IP, routing, ports, DNS management).
MTA Mastery:



Expert-level proficiency configuring, debugging, and optimizing enterprise mail tools such as Postfix , Dovecot , or Postal.
Security & Filtering: Hands-on experience writing rules and maintaining mail-filtering/anti-abuse applications like Rspamd and Fail2Ban.
Observability Pipelines: Proven experience building or maintaining log pipelines using Vector or similar high-scale telemetry frameworks.
Infrastructure Automation: Experience implementing network routing layer tools (HAProxy , FRRouting ) and relational databases (PostgreSQL replication).
Certificate Management: Strong familiarity with automated SSL/TLS certificate rotation and multi-node compliance monitoring to ensure broken TLS never causes silent drops.
Deliverability & Operational Standards
Deep comprehension of the difference between Delivery (server handoff) and Deliverability (inbox placement).
Expert parsing of aggregate DMARC reports using platforms like DMARCian, Valimail, or Postmark.
Strict commitment to Acceptable Use Policies (AUP): zero tolerance for purchased/scraped lists and a firm grasp on Feedback Loop (FBL) automated triage.
Key Performance Indicators (KPIs)
Your success in this role will be directly measured by your ability to keep our infrastructure metrics pristine:
General Infrastructure Spam Complaint Rate: Maintained strictly under 0.1%.
Global Hard Bounce Rate: Kept consistently below 2.0%.
Infrastructure Uptime: *****% availability across all outbound MTAs and mail relays.
Incident Isolation Time: Transitioning high-risk or abusive senders to the "Penalty Box" or circuit-breaking campaigns within minutes of a threshold breach.
Benefits
This is a highly technical systems engineering role, not a marketing or email campaign management position.
To be considered, you must have hands-on experience configuring Linux mail servers at the command-line level.
Please confirm upon applying that the compensation range of $24,000 to $36,000 USD per year aligns with your expectations.
#J-*****-Ljbffr

📌 Remote Webflow Webmaster – End-To-End Site Ownership (Buenos Aires)
🏢 Deel
📍 Buenos Aires