Staff Site Reliability Engineer, Telecom & SMS

Who We Are

EZ Texting is a recognized leader in text message marketing for small and medium-sized businesses and organizations, setting the standard for professional texting. Our messaging solutions allow everyone to easily and effectively reach their mobile audiences.

We believe in empowering our customers, from nonprofits to retailers, to activate their audience engagement superpowers, one text at a time – and we’re looking for people like you to join our team!

Our employees are our greatest strength and we are committed to hiring exceptional, values-aligned talent. We have consistently been rated a Top 100 workplace and are committed to being a best-in-class remote work employer — with benefits to match!

We are currently only hiring in CA, NY, TX, MA, WA, GA, PA, FL, TN, and DC. At this time, we are not able to consider candidates outside of these states.

Role Overview:

As the Staff SRE for Telecom & SMS Infrastructure, you will be responsible for system operations, creating scalable and durable maintenance best practices, developing future-looking architectural optimization strategies, and supporting the success of the team to drive substantial value and business outcomes.  You will be accountable for supporting the strategic carrier relationships to drive enterprise goals forward. You will proactively collaborate internally with Engineering, Product, Carrier, and Support teams to enable seamless customer solutions. 

Primary Responsibilities:

• Lead the design and implementation of reliability strategies for SMS infrastructure, focusing on automation, monitoring, and performance tuning
• Serve as the technical point of contact between EZ Texting and the telecom providers and aggregators
• Serve as an expert in SIP and SMS technologies & protocols, guiding best practices and performance optimization. 
• Proactively analyze, monitor, and report on messaging operations performance, assessing reliability and maintainability
• Respond to customer escalations for our voice and messaging products
• Set up a plan to scale telecom engineering knowledge towards a durable and sustainable framework
• Act as the telecom technical advisor for the Carrier, Product, and Engineering teams and leadership in support of the organization’s strategic direction
• Conduct performance analysis and monitoring of telecom and messaging infrastructure, identifying and addressing bottlenecks for optimal service delivery. 
• Develop and enforce service-level objectives (SLOs) to measure and improve service reliability.
• Help foster and reinforce a culture of inclusion, innovation, and excellence

Required Skills: 

• 10+ years engineering experience with telecom and sms infrastructure
• 10+ years of software engineering experience
• Experience working with web applications and service-oriented architectures
• Not afraid of a command line
• Knowledge of Spring Boot
• Experience with software development
• Deep understanding of REST
• Experience working in a cloud environment (GCP, AWS, Azure)
• Experience working with Interconnects, NAT, VPN WAFs
• Experience with sngrep, wireshark,nginx, tomcat, linux, haproxy, k8s, mysql, elasticsearch
• Experience with docker, gitlab, github, jenkins, ansible, terraform
• Deep knowledge of Opensips, Asterisk, and Kannel
• Deep understanding of the SMS and MMS protocols
• Deep understanding of SNMP, SIP, RTP (telco/sms specific)
• Deep experience dealing with customers and troubleshooting/diagnosing SMS, MMS, and VOIP
• Understanding of the fraud landscape in telecom and messaging
• Know what these mean: DLR, MO, MT, MM4, MM7, AGI, AMI
• Building asterisk, kannel, opensips from source
• Asterisk performance tuning for big traffic spikes (elections)
• Familiarity with DevOps principles and practices
• Familiarity with SRE
• Demonstrated ability to troubleshoot complex system issues, utilizing a systematic, detail-oriented approach.