Senior Software Engineer

Our client a technology company provides marketing sales and customer support services ranging from consumer goods to the rapidly changing print media space. We operate a lead generation platform and marketing network handling millions of new customers monthly which has rapidly become a leader in its space. We also run customer rewards programs and ecommerce efforts with big brand partners marketing to a wide range of book and magazine lovers.

Responsibilities:

• Architect solutions that scale horizontally and handle heavy traffic without manual intervention; real-time paths like click tracking and lead validation are where latency and correctness both count.
• Build and operate serverless backends on AWS Lambda behind API Gateway event-driven flows over EventBridge and SQS DynamoDB and Step Functions for orchestration.
• Write and deploy the infrastructure yourself; every stack we run is AWS CDK v2 in TypeScript.
• Plan out and execute a path for iteratively migrating legacy applications to newer solutions reading the existing C# PHP and SQL Server systems well enough to establish what they really do then designing and shipping the replacement in sequenced waves alongside a running business.
• Build and maintain the data pipelines behind partner and internal reporting DynamoDB streams into Aurora PostgreSQL S3 through Glue into Redshift Serverless and the materialized views on top.
• Work with product owners to understand feature needs and integrate them into existing products.
• Assist our partner companies with integrating to our APIs and build custom integrations with theirs.
• Debug applications across the full stack diving into services and logs to help diagnose issues and replicating customer scenarios.
• Help define test strategy and triage alongside our QA engineer and keep quality consistent across the release cycle.

Requirements:

• Substantial experience building and running production software for seven years or more.
• Production experience with AWS particularly Lambda API Gateway DynamoDB SQS or EventBridge S3 IAM and CloudWatch services youve run and debugged not only configured.
• Strong working knowledge of TypeScript and ; you should be productive in it from the start.
• Production experience with both SQL and NoSQL data stores PostgreSQL MySQL or SQL Server for relational work including query tuning and indexing and DynamoDB or similar for key-value and single-table design. Most of our systems use both.
• Understanding of infrastructure as code and experience implementing it yourself with CDK the Serverless framework Terraform CloudFormation or similar.
• Proven experience working in scalable high-traffic application platforms
• Comfortable inheriting systems you did not build working out what an unfamiliar system actually does and deciding whether to extend it replace it or leave it alone.
• Knowledge of CI/CD workflows and unit testing best practices; we use GitHub Actions across every repository.
• Strong history of observing best practices with Git and task management.
• Excellent written communication and comfort working asynchronously with a small distributed team.
• Functional knowledge of HTML CSS and a modern front-end framework and comfort maintaining UIs. This is a primarily-backend role but our team is full-stack in some capacity.

Our Stack:

• Languages: TypeScript and across every new service and front end; Python for ETL and data tooling; C# PHP and T-SQL in the legacy estate being replaced.
• Compute and APIs: Lambda ECS behind an ALB Docker API Gateway EventBridge SQS Step Functions DynamoDB Streams.
• Data: DynamoDB Aurora PostgreSQL MySQL SQL Server Redshift Serverless AWS Glue dbt Snowflake.
• Infrastructure: AWS CDK v2 in TypeScript and Serverless Framework
• Front end: React 18 Vite TanStack Query Remix Shopify Polaris and App Bridge
• Delivery and quality: GitHub Actions multi-stage dev / test / prod Jest Vitest ESLint Prettier SES and Postmark
• Tooling: Enterprise AI coding assistants in-repo project context agent-assisted code audits

Preferred Qualifications:

• Previous experience scaling a PHP or Java application into modern best-practice standards and enough C# or PHP to understand what youre replacing
• Deep experience with AWSs serverless technology offerings
• Python particularly for ETL and data work
• Day-to-day use of AI coding assistants in a real engineering workflow and the judgment to tell when a confident answer is wrong
• Transactional email and deliverability at scale SES Postmark SPF/DKIM/DMARC bounce and complaint handling
• Ad tech experience lead generation tracking or attribution
• Analytics tooling Redshift AWS Glue dbt or Snowflake
• Consumer privacy and data compliance work particularly CCPA and DSAR workflows
• Ecommerce platform integrations; we run a multi-merchant Shopify platform though prior Shopify experience is not expected