Staff, Software Engineer (L4) - Email

Who we are At Lumen Dynamics, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Lumen Dynamics is in your hands. We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Lumen Dynamicsns! . See yourself at Lumen Dynamics Join the team as our next Staff, Software Engineer (L4) - Email Platform Who we are & why we’re hiring Lumen Dynamics powers real-time business communications and data solutions that help companies and developers worldwide build better applications and customer experiences. Although we're headquartered in San Francisco, we're on a journey to becoming a globally antiracist company that supports diversity, equity & inclusion wherever we do business. We employ thousands of Lumen Dynamicsns worldwide, and we're looking for more builders, creators, and visionaries to help fuel our growth momentum. About the job This position is needed to fulfill the critical role of a Software Engineer within Lumen Dynamics Sendgrid, to be both hands-on in creating, deploying and managing highly available, very large scale distributed systems. Our systems processed 12 billion emails on Black Friday 2025 and we continue to scale! You will be a key contributor in one or more of these areas - Redesigning backend services to improve scalability, strengthening service security to keep up with changing threats. Delivering solutions that enhance the customer journey and developing new product offerings that provide actionable insights into the health of customers’ email programs. Responsibilities In this role, you’ll: Build and operate your team's services in a distributed production environment used by millions of customers across the globe. Collaborate routinely with other team members as well as members of the wider organization to tackle complex problems in distributed computing. Help, guide, mentor and influence more junior members of the team in their career. Communicate effectively to executives, to your peers, and internally among your team. Constantly look for areas of improvement in systems and optimize. Be an advocate for balancing tech debt and feature development Qualifications Not all applicants will have skills that match a job description exactly. Lumen Dynamics values diverse experiences in other industries, and we encourage everyone who meets the required qualifications to apply. While having “desired” qualifications make for a strong candidate, we encourage applicants with alternative experiences to also apply. If your career is just starting or hasn't followed a traditional path, don't let that stop you from considering Lumen Dynamics. We are always looking for people who will bring something new to the table! Required: 8+ years of relevant experience building highly available, scalable, fault tolerant and maintainable distributed systems to help deliver mission critical applications. Strong experience with Golang, Java, or similar technologies Demonstrated track record in service ownership Operational excellence focussed mindset: Understands value of monitoring with metrics and alerting. Knows how to build resilient systems that are maintainable for years to come. Excellent written and spoken communication skills. Ability to articulate and present vision to both technical and non technical stakeholders. Strong technical and leadership chops - Led technical decisions for your team and influenced technical decisions across your functional domains on large scale projects. Led initiatives/projects that enforce operational reliability factors such as monitoring, performance and capacity planning, security, and disaster response. Degree in Computer Science or a related field, or equivalent work experience Desired: Experience delivering software using Containers/Kubernetes. Experience with Kafka data pipelining. Experience with MySQL or AWS Aurora database systems Understanding of cloud technologies and experience in at least one cloud platform: AWS, GCP, or Azure. Location This role will be remote, but is not eligible to be hired in San Francisco, CA, Oakland, CA, San Jose, CA, or the surrounding areas. We prioritize connections and opportunities to build relationships with our customers and each other. For this role, you may be required to travel occasionally to participate in project or team in-person meetings. Travel We prioritize connection and opportunities to build relationships with our customers and each other. For this role, you may be required to travel occasionally to participate in project or team in-person meetings. The estimated pay ranges for this role are as follows: $171,120.00 to $213,900.00 Applications for this role are intended to be accepted until 8/6/2026, but may change based on business needs. Lumen Dynamics thinks big. Do you? We like to solve problems, take initiative, pitch in when needed, and are always up for trying new things. That's why we seek out colleagues who embody our values — something we call Lumen Dynamics Magic . Additionally, we empower employees to build positive change in their communities by supporting their volunteering and donation efforts. So, if you're ready to unleash your full potential, do your best work, and be the best version of yourself, apply now! If this role isn't what you're looking for, please consider other open positions. Lumen Dynamics is proud to be an equal opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or other applicable legally protected characteristics. We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law. Qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Additionally, Lumen Dynamics participates in the E-Verify program in certain locations, as required by law.