Sr. Software Developer

Revionics (an Aptos company) has an opening for a Senior Backend Engineer to join our US team located in the Austin area. Revionics’ market-leading platform drives the world’s largest retailers in terms of their product pricing, promotion and merchandising decisions worldwide.  Over 33,000 retail locations and $200+B in annual revenue across grocery, drug, convenience, general merchandise, discount, sporting goods stores, fashion, and eCommerce sites optimize with Revionics’ solutions. 

About the Role 

As a Senior Backend Engineer, you will be a key player on the team building our next-generation Agentic Platform. Own the backend services that power our AI agent platform — async workflows, internal APIs, and the external-facing capabilities our customers build on. The Senior Software Engineer role is responsible for driving the overall system design, architecture, scalability, reliability, and performance of end-to-end AI-driven systems at Revionics. 

Who You Are 

• You have 5+ years of experience in software engineering including building scalable cloud-native systems and strong proficiency in microservices architecture 

• You bring a deep understanding and application of decoupled architecture as well as computer science fundamentals: data structures, algorithms, and design patterns 

• Proven experience designing and building backend systems for AI-powered applications, including integration with Large Language Models (LLMs) 

• Deep understanding of designing and implementing complex, long-running asynchronous workflows and state management for agentic systems 

• Experience externalizing APIs and agent capabilities — including headless API design, MCP server development, or A2A protocol integration — for consumption by external customers and third-party systems 

• Familiarity with API productization practices: usage metering and quota tracking, versioning strategies, and developer portal tooling (e.g. Apigee, Backstage, or equivalent) 

• Exposure to cloud platforms (AWS/GCP), GCP experience preferred (BigQuery, Cloud Functions, Pub/Sub) 

• Demonstrated experience (5+) years of Node.js experience (NestJS Framework, Typescript) 

• High level of proficiency with Typescript (including generics, classes, interfaces, etc) 

• Experience writing event-driven and async applications 

• Demonstrated experience with Relational and NoSql databases 

• Experience in containerization and container orchestration (Docker, Kubernetes, etc.) 

• Experience enabling CI/CD pipelines using tools such as Gitlab, or others 

• Proficient and experienced in Unit Testing and usage of mocking framework, with a Test First mindset to developing features 

• Security first mindset and working within security boundaries with tooling such as SAST and SCA 

• Experience working within small agile teams, across multiple disciplines and able to lead the agile process in regard to ceremonies and story grooming 

• Proficient in using AI tooling in day-to-day work, such as Claude Code, to aid with coding, documentation, and architecture 

• You display ownership, team spirit, are self-driven, a clear communicator, can lead cross-functionally and with empathy 

What You'll Do 

• Collaborate with product managers, data scientists, and other engineers to build and refine the APIs, orchestration logic, and data pipelines for our AI agents 

• Own the architecture and implementation of highly scalable and reliable backend services that manage the lifecycle and execution of asynchronous agentic tasks 

• You will educate other engineering teams and advocate for scalable and maintainable architectural decisions 

• Continually improve our technical stack and processes 

Nice to Have 

• Familiarity with frameworks and tools in the agent development ecosystem (e.g., LangChain, LlamaIndex) is a strong plus 

We Also Look For 

• Passion 

• Initiative and a Pioneering Spirit 

• Quality orientation 

• Resourcefulness and application 

Are you the person we’re looking for? 

• Big picture thinker with laser focus. You have a unique ability to see both the forest and the trees. It’s what sets you apart from the rest. You start with a good understanding of the broader strategy, zoom in to assess one particular aspect of that strategy, and then zoom back out to see how changes to that particular area will affect the broader process 

• Expert relationship cultivator. Product managers think you’re a good partner -- because you are. Developers feel you respect their opinions -- because you do. You’re a true people person, a natural collaborator, and a highly sought-after resource 

• Quality orientation. You have proven success at writing quality user stories and analysis deliverables through the application of established criteria like INVEST and SMART. Your work is thoughtful, timely and valuable to the team 

• Resourcefulness and application. At Aptos, we have a pioneering spirit -- when we have questions, we find answers; when we’re faced with challenges, we find solutions. We turn to a variety of resources, including our own colleagues, our professional network, the Internet, articles and books -- whatever helps us get the job done. But it’s not just about using a variety of resources to gain knowledge -- it’s also about applying that knowledge to other areas of the job or business where it might make sense