At Constant Contact, we are seriously awesome people who take ownership and make an impact by operating with the mindset, integrity and courage of a small business owner. There's something so profoundly rewarding about knowing that your work is empowering people everywhere to pursue their dreams. Here, we all play an integral part in helping business owners, entrepreneurs, non-profits and individuals to succeed by giving them all the help and tools they need to grow online. We're energized by new challenges and new possibilities-and we're just getting started! We have an opening for a Senior Backend Software Developer to join our Contacts Team. In this role, you'll play a pivotal role managing systems handling billions of contacts. If you're a seasoned backend engineer eager to take on complex technical challenges at scale, guide and mentor fellow developers, and drive the evolution of core microservices that empower our customers' success, this role could be your next great opportunity. This is a flexible hybrid role that includes working onsite at our Waterloo innovation center office one day per week to support team collaboration and cross-functional alignment. What You'll Do: Collaborate with Product Managers, Data Scientists, and senior members of the development team to translate business needs for contact management and data ingestion into robust technical solutions Own the full development lifecycle (design, coding, testing, CI/CD, monitoring) for scalable, reliable Java-based microservices and APIs (using Spring Boot, Quarkus), handling high-volume data processing Optimize applications for scalability, reliability, and performance, ensuring they meet the demands of processing millions of records daily Mentor junior members of the team on software development best practices, architecture, and technologies Be a key contributor to the team's technical direction and the evolution of a long-term, scalable architecture Stay current with industry trends, research emerging technologies, and advocate for their adoption where appropriate Who You Are: 6+ years designing, developing, and operating large-scale distributed Java backend services/microservices Java Expertise: Expert-level Java knowledge and deep ecosystem experience Frameworks: Proven experience building RESTful APIs/microservices with Spring Boot and/or Quarkus; strong Spring Framework understanding Databases: Strong proficiency with relational databases and SQL Messaging: Experience with message queues (e.g., AWS SQS, RabbitMQ) Cloud & Deployment: Experience deploying/managing applications on AWS (Lambda, EC2, EKS, SQS, IAM) Hands-on experience with Docker and Kubernetes Proficiency configuring/maintaining Jenkins CI/CD pipelines Testing: Commitment to quality; experience with Java unit/integration testing and TDD (JUnit, Mockito, Spring Test) Version Control: Proficiency with Git in a collaborative CI/CD environment Scripting: Proficiency in a scripting language (preferably Python) for automation/operations Excellent communication and collaboration skills, with the ability to articulate complex technical designs and trade-offs Icing on the Cake (really nice to have): Familiarity with Ruby (understanding related services, test frameworks) Experience with NoSQL (Redis, DynamoDB) and/or search (Elasticsearch) Experience with observability tools (OpenTelemetry, Splunk, Prometheus, Grafana, ELK) Experience with IaC tools (Terraform, CloudFormation) Experience with AWS Bedrock or similar AI/ML services #LI-HK1 #LI-Hybrid Why You'll Love Us: We celebrate one another's differences. We are proud of our culture of diversity and inclusion, and we're always working hard to strengthen and improve this culture. We have programs in place that bring us together on important issues and provide educational opportunities for all employees. Join the experts. If you're passionate about supporting businesses and organizations, you won't find a better spot to share your talent. We're dedicated to improving the quality of our product from a customer standpoint and have a true desire to enable the success of businesses, non-profit organizations, and community groups. You'll have opportunities to grow your career. We encourage and support our team members to learn different aspects of the business, take on stretch assignments, seek coaching opportunities and professional development opportunities. A generous paid time off policy and a competitive benefits package that supports the health and well-being of you and your family At Constant Contact, we're all about work flexibility and are proud to serve our customers as a hybrid workforce. Our hybrid work model combines the convenience of remote work with access to our great office locations to collaborate in-person, participate in live trainings, and socialize with colleagues. Application Deadline: 30 days. We may fill this job opening prior to the deadline if a candidate is selected by us. Constant Contact is an equal opportunity employer. We do not discriminate on the basis of race, color, religion, sex, gender, gender identity, national origin, citizenship, age, disability, sexual orientation, genetic information, veteran status or any other status protected under applicable law. If you require accessibility assistance applying for open positions, please contact talentacquisition@constantcontact.com. The contractor will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor's legal duty to furnish information. 41 CFR 60-1.35(c) Notice to Recruiters and Staffing Agencies: Constant Contact has an internal talent acquisition department and designated career site for individuals looking to join our team. Constant Contact will not accept unsolicited resumes from any external recruiters, staffing firms, search agencies or any fee-based referrals. Any unsolicited resumes sent to directly to Constant Contact, in any capacity will be considered property of Constant Contact. Constant Contact will not pay a fee for any placement resulting from the receipt of an unsolicited resume.