Senior Software Engineer

Apollo.io is the leading go-to-market solution for revenue teams. As a Senior Software Engineer, you will be a critical part of our growing company, working on a cross-functional team to implement best practices in technology, architecture, and process. You’ll have the chance to work in an open and collaborative environment, receive and give hands-on mentorship, and have opportunities to grow and accelerate your career. In this role, you will work across two high-impact domains: data platform architecture and integrations with distributed systems building the infrastructure that powers Apollo’s AI-driven internal products.

Responsibilities

Design and implement highly scalable backend services, data pipelines, and integration endpoints that perform reliably at high volume; Gather product and engineering requirements; write design documents and drive technical discussions to align cross-functional stakeholders; Drive and lead the full software development lifecycle: product requirements, architecture, solution design, development, quality assurance, and maintenance; Build systems with observability as a first-class concern proper monitoring, alerting, and dashboards so issues are caught before customers notice; Mentor others on best practices and effectively share knowledge across the engineering team; Communicate development progress clearly to product leads, engineering managers, and other stakeholders; Be comfortable introducing new technologies and new ideas as required, including AI tools that accelerate your workflow and the team’s; Navigate ambiguity and roadblocks proactively when a project hits a wall, you find a path forward and maintain cadence; Work effectively as part of a large global team, attending scrum ceremonies, team events, and manager 1:1s; Provide and respond to technical and behavioral feedback from managers and peers in written and verbal form

Requirements

Minimum 5 years of industry experience in backend development, at least 1-2 years in senior positions, developing large-scale applications; Experience developing distributed web applications at scale; Code that is comprehensible, well-structured, and highly performant; Experience with database modeling (SQL or NoSQL); Experience using and designing RESTful services; Strong knowledge of computer science fundamentals, including data structures, algorithms, and object-oriented design; Proven experience leveraging AI tools to enhance software development processes, including code generation, debugging, and productivity optimization, with a willingness to stay current with emerging AI technologies; Background in fast-scaling startup or high-velocity environments where going beyond your job title was the norm; Communication Skills; Problem Solving; Proactivity; Team Player; Listening Skills; Creativity and Innovation; Organization and Planning; Dealing with Ambiguity; Ownership of projects from start to finish; Distributed Web Development

Nice to have

BS or MS degree in Computer Science, Computer Engineering or similar; GCP; Kubernetes; Docker; Mongo; Redis; Ruby on Rails; Microservices; Machine Learning

Benefits

Hands-on mentorship; Opportunities to grow and accelerate your career; Open and collaborative environment; Resources, support, and autonomy to own your role and make a real impact; Collaboration across departments; Freedom to experiment, take smart risks, and drive big wins