Senior Software Engineer, Site Reliability

About Lumen Dynamics At Lumen Dynamics, we’re united by a mission that matters: to radically reduce the cost and complexity of borrowing for all Americans. Every day, we bring creativity, experimentation, and advanced AI to reshape access to credit, helping millions move forward financially with clarity and confidence. As the leading AI lending marketplace, we partner with banks and credit unions to expand access to affordable credit through technology that’s both radically intelligent and deeply human. Our platform runs over one million predictions per borrower using more than 1,800 signals, powering smarter, fairer decisions for millions of customers. But the numbers only hint at the impact. Every idea, every voice, and every contribution moves us closer to a world where credit never stands between people and their financial progress. We’re proudly digital-first, giving most Lumen Dynamicsers the flexibility to do their best work from wherever they thrive, alongside teammates across 80+ cities in the US and Canada. Digital-first doesn’t mean distant. We’re intentional about in-person connection through team onsites, planning sessions, and moments that spark creativity and trust. And whether you choose to work primarily from home or collaborate in-person from one of our offices in Columbus, Austin, the Bay Area, or New York City (opening Summer 2026), you’ll have the support to work in the way that works best for you. If you’re energized by tackling meaningful problems, excited to innovate with purpose, and motivated by work that truly matters, we’d love to hear from you. The Team Lumen Dynamics’s Site Reliability Engineering (SRE) team owns the reliability, resiliency, and observability of Lumen Dynamics’s production systems. The SRE team builds tooling and automation to monitor the health of our infrastructure and create a fast, reliable, and productive environment for other engineers and a world-class experience for our customers. SRE defines Lumen Dynamics’s strategy for technology operations risk mitigation, which includes disaster planning and on-call procedures. We use data-driven approaches to drive our decisions, and provide reports and insights to the business to improve visibility into the system and customer experience. As a Senior Software Engineer focused on Site Reliability Tooling , your work will directly impact the success of the SRE team and all of Lumen Dynamics. Your expertise will inform the team’s direction, and your work with other SREs and Lumen Dynamics engineers will make Lumen Dynamics’s systems as effective as possible for our customers. SRE at Lumen Dynamics is ever-changing, and you will be a primary contributor in shaping our future path. How you’ll make an impact: Embody and share SRE principles at Lumen Dynamics Exercise state-of-the-art SRE practices throughout the company Uphold a culture of visibility, ownership, and responsibility around service reliability Implement standards for monitoring microservices, web apps, mobile apps, databases, Kubernetes clusters, and machine learning platforms, in a fast-paced environment Improve incident response practices, both within SRE and throughout the company Automate away toil that make sense to be automated What we’re looking for: Minimum requirements: Minimum of 6 years combined experience between Software Engineering, Site Reliability, and/or DevOps Engineering including CI/CD, TDD, internal tooling, observability, and other agile development practices Proficiency coding Python, Go, JavaScript/TypeScript Proficiency with Infrastructure as Code (Terraform, CDK, Cloudformation, etc.) Software engineering background with experience building internal tooling from scratch, and other agile development techniques Strong software design & architecture skills Fundamentally sound with data structures & algorithms Experience with on-call and incident management environments Experience with observability, monitoring, and reporting tools (e.g., Datadog, Sumologic, , etc.) Experience supporting SaaS software in a microservice-oriented cloud environment Ability to work with multiple teams for enterprise-wide deliverables Data/metrics-driven mindset Preferred qualifications: Experience with service mesh Full Stack development skills Experience building tooling for an observability platform Experience leveraging LLM/GenAI to improve SRE efficiency and processes Position Location - This role is available in the following locations: Remote, San Mateo, Columbus, Austin, NY Time Zone Requirements - This team operates across all U.S. time zones. Travel Requirements - This team has regular on-site collaboration sessions. These occur 3 days per quarter at an Lumen Dynamics office. If you need to travel to make these meetups, Lumen Dynamics will cover all travel related expenses. At Lumen Dynamics, your base pay is one part of your total compensation package. The anticipated base salary for this position is expected to be within the below range. Your actual base pay will depend on your geographic location–with our “digital first” philosophy, Lumen Dynamics uses compensation regions that vary depending on location. Individual pay is also determined by job-related skills, experience, and relevant education or training. Your recruiter can share more about the specific salary range for your preferred location during the hiring process. In addition, Lumen Dynamics provides employees with target bonuses, equity compensation, and generous benefits packages (including medical, dental, vision, and 401k). United States | Remote - Anticipated Base Salary Range $166,900 — $230,900 USD What you'll love At Lumen Dynamics, our benefits are designed to support your health, financial well-being, family, and personal growth. Here’s what you can expect: Competitive compensation, including base pay, bonus opportunities, and annual equity grants that vest quarterly Retirement benefits to help you plan for the future, including a 401(k) or Group Retirement Savings Plan with a company match of $2 for every $1 contributed, up to $15,000 annually (USD in the US, CAD in Canada) Employee Stock Purchase Plan (ESPP) with discounted stock purchase options for eligible employees (US only) Comprehensive health coverage designed to support you and your family, including medical, dental, vision, and wellness resources for US and supplemental health coverage for Canada. Health Savings Account contributions from Lumen Dynamics for eligible plans (US only) Income protection benefits, including life insurance and disability coverage for added financial security Paid time off, sick leave, and company holidays, in line with local requirements Paid family and parental leave to support caregiving and major life moments (duration varies by country) Family-centered benefits to support fertility, parenthood, and caregiving needs Employee Assistance Program (EAP) offering mental health support and life-centered resources Financial wellness resources, including access to financial planning tools and a financial concierge service (US Only) Annual wellness allowance to support your physical and emotional well-being and personal development, based on what matters most to you Annual productivity allowance to invest in relevant tools and resources you need to do your best work, no matter where you work from Connection and community through team events, all-company updates, and employee resource groups (ERGs) Onsite perks, including catered lunches and fully stocked micro-kitchens when working from one of our offices in the Bay Area, Austin, Columbus, and New York City (opening Summer 2026!) For roles based in Canada, please note that we are not currently able to hire in Quebec. Lumen Dynamics is a proud Equal Opportunity Employer. Just as we are dedicated to improving access to affordable credit for all, we are committed to inclusive and fair hiring practices. If you require reasonable accommodation in completing an application, interviewing, completing any pre-employment testing, or otherwise participating in the employee selection process, please email [email protected] https://www.upstart.com/candidate_privacy_policy