Senior Software Engineer, Identity

Attentive® is the AI-powered mobile marketing platform transforming the way brands personalize consumer engagement. Attentive enables marketers to craft tailored journeys for every subscriber, driving higher recurring revenue and maximizing campaign performance. Activating real-time data from multiple channels and advanced AI, the platform personalizes content, tone, and timing to deliver 1:1 messages that truly resonate.

With a top-rated customer success team recognized on G2, Attentive partners with marketers to provide strategic guidance and optimize SMS and email campaigns. Trusted by leading global brands like Neiman Marcus, Samsung, Wayfair, and Dyson, Attentive ensures enterprise-grade compliance and deliverability, supporting trillions of interactions across more than 70 industries. To learn more or request a demo, visit www.attentive.com or follow us on LinkedIn, X (formerly Twitter), or Instagram.

Attentive’s growth has been recognized by Deloitte’s Fast 500, Linkedin’s Top Startups and Forbes Cloud 100 all thanks to the hard work from our global employees!

About the Role

Our Engineering team creates innovative product experiences that power personalized marketing at massive scale. We develop cutting-edge applications and systems that process 100s of billions of messages and events per year, enabling marketers to connect effectively with hundreds of millions of consumers. Joining our team offers a high-growth career opportunity to work with some of the world’s most talented engineers in a high-performance and high-impact culture.

Our Identity team ensures that all the data Attentive captures across multiple sources is associated with the right person, critical to all downstream messaging and personalization. We use multiple strategies to maintain a robust Identity graph and are constantly experimenting to drive our capture and accuracy rates higher.

As a Senior Software Engineer on our Identity team, you will own and improve a critical system that processes billions of events per day, ensuring its stability and performance as we layer on additional identification strategies and guardrails. At the same time, you will contribute to multiple experiments to drive our identity capture and accuracy higher across the stack, working alongside our frontend engineers or delivering solutions for our data scientists. You will work closely with Product, Data Science, and Analytics.

• Design, build, and optimize high-scale systems that accurately resolve fragmented customer identities across first-party and third-party data sources
• Develop advanced session enrichment capabilities to enhance anonymous and known user tracking, improving attribution and personalization
• Extend core algorithms that power real-time identity stitching and device graphing
• Collaborate cross-functionally with data science, product, and analytics teams to create flexible identity models that support a wide range of business use cases
• Continuously monitor, evaluate, and improve the accuracy, speed, and scalability of our identity resolution and tracking systems

• 5+ years of professional experience in software development
• Experience maintaining high-scale, real-time data processing systems
• Strong communication skills and a product-oriented mindset — able to understand the “what” and “why” behind technical work, collaborate effectively with Product and Analytics teams, and translate business needs into scalable solutions

• Comfortable working in a fast-paced, experiment-driven environment where priorities shift and learning quickly is key
• Familiarity with frontend browser technologies such as cookie lifecycles and common analytics or fingerprinting libraries
• Experience with analytics or working with data pipelines and analytics infrastructure, such as Spark jobs, and supporting downstream analytics use cases
• Experience working with Java / Spring, streaming technologies such as Pulsar AWS infrastructure

• Our infrastructure runs primarily in Kubernetes hosted in AWS’s EKS
• Infrastructure tooling includes Istio, Datadog, Terraform, CloudFlare, and Helm
• Our backend is Java / Spring Boot microservices, built with Gradle, coupled with things like DynamoDB, Kinesis, AirFlow, Postgres, Planetscale, and Redis, hosted via AWS
• Our frontend is built with React and TypeScript, and uses best practices like GraphQL, Storybook, Radix UI, Vite, esbuild, and Playwright
• Our automation is driven by custom and open source machine learning models, lots of data and built with Python, Metaflow, HuggingFace 🤗, PyTorch, TensorFlow, and Pandas

You'll get competitive perks and benefits, from health & wellness to equity, to help you bring your best self to work.

For US based applicants:

- The US base salary range for this full-time position is $170,400 - $230,000 annually + equity + benefits

- Equity is a substantial part of the total compensation package

- Our salary ranges are determined by role, level and location

#LI-JS1

Attentive Company Values

Default to Action - Move swiftly and with purpose

Be One Unstoppable Team - Rally as each other’s champions

Champion the Customer - Our success is defined by our customers' success

Act Like an Owner - Take responsibility for Attentive’s success

Learn more about AWAKE, Attentive’s collective of employee resource groups.

If you do not meet all the requirements listed here, we still encourage you to apply! No job description is perfect, and we may also have another opportunity that closely matches your skills and experience.

At Attentive, we know that our Company's strength lies in the diversity of our employees. Attentive is an Equal Opportunity Employer and we welcome applicants from all backgrounds. Our policy is to provide equal employment opportunities for all employees, applicants and covered individuals regardless of protected characteristics. We prioritize and maintain a fair, inclusive and equitable workplace free from discrimination, harassment, and retaliation. Attentive is also committed to providing reasonable accommodations for candidates with disabilities. If you need any assistance or reasonable accommodations, please let your recruiter know.