Senior Full Stack Software Developer Jobs in Avon, CT

ZenSource is seeking a seasoned Senior Full Stack Developer (Drupal) to play a critical role in building, enhancing, and scaling cloud‑native, content‑driven solutions for our clients. This individual will be a hands‑on senior contributor, providing immediate impact across Drupal back‑end development while supporting modern cloud, serverless, and AI‑enabled initiatives on our roadmap.

This role is ideal for a highly capable engineer who is comfortable owning technical solutions end‑to‑end and helping establish best practices, as the team continues to grow. The Senior Engineer will collaborate closely with solution architects, product leaders, and clients, while setting a strong technical foundation ahead of future junior‑level hires.

• High‑quality, production‑ready Drupal solutions delivered efficiently
• Successful support and enhancement of Drupal 10–11 platforms
• Contribution to serverless and AI‑enabled features aligned to the product roadmap
• Strong collaboration and technical leadership within a growing engineering team
• Scalable, secure, and maintainable architecture aligned with cloud best practices

Reports to: SVP, product

• Drupal & Full Stack Development
  • Design, develop, and maintain robust Drupal back‑end solutions, with a focus on performance, scalability, and security, accessibility (WCAG AA), and Core Web Vitals.
  • Work across the full stack as needed, ensuring smooth integration between front‑end experiences and back‑end systems.
  • Architect integrations between Drupal and CRM/marketing platforms (e.g., Salesforce, HubSpot, Constant Contact) to support automated lead capture and marketing workflows.
  • Lead development efforts on Drupal 10–11 projects, including custom modules, integrations, and migrations.
  • Troubleshoot complex issues across environments and provide production support when required, including supporting other internal teams (e.g., the support department) with issue resolution and architecture guidance.
• Cloud & Serverless Technologies
  • Contribute to serverless architectures supporting platform and product innovation.
  • Develop and maintain Python‑based services and AWS Lambda functions.
  • Collaborate on cloud‑native designs leveraging AWS services at a foundational level.
  • Ensure systems are secure, scalable, and cost‑efficient.
• AI‑Enabled Development
  • Support and extend AI‑related features and integrations across applications.
  • Collaborate with cross‑functional teams to implement AI‑driven functionality into client and platform solutions.
  • Apply experience with AI development to practical, production‑ready use cases.
• Technical Leadership & Collaboration
  • Serve as a senior technical resource and mentor to future junior developers, providing ad‑hoc technical guidance and support across the broader engineering org and partner‑agency developers.
  • Establish and follow engineering best practices, documentation, and coding standards.
  • Partner with architects, product managers, and stakeholders to translate business needs into technical solutions.
  • Lead client‑facing pitch meetings and technical demos, communicating platform value and building stakeholder confidence.
  • Participate in code reviews, architecture discussions, and continuous improvement efforts.

1. 4+ years of experience as a full stack developer, with strong back‑end expertise.
2. 4+ years of hands‑on Drupal development, ideally at a mid‑to‑senior level.
3. Comfort working primarily in Drupal back‑end development, with full stack awareness.
4. Experience with Drupal 10 or 11 strongly preferred.
5. Familiarity with serverless technologies, including AWS Lambda.
6. Proficiency with Python for back‑end and serverless development.
7. 2+ years of AI development experience, with practical application in real‑world systems.
8. High‑level working knowledge of AWS and cloud‑native architectures.
9. Ability to work independently, make sound technical decisions, and deliver solutions with minimal ramp‑up.

• Senior‑level problem solving and technical ownership
• Strong architectural thinking and attention to quality
• Ability to balance speed with long‑term maintainability
• Clear communication with both technical and non‑technical stakeholders
• Mentorship mindset and collaborative approach

• The best co‑workers you’ll ever find
• Unlimited PTO
• Medical, Dental, Vision, 401k plus match
• Annual performance bonus eligibility
• Ongoing training opportunities
• Planned outings and team events (remote workers included!)

• Prolonged periods of sitting at a desk and working on a computer.
• Occasional standing, walking, or lifting of office supplies (up to 10–20 lbs).
• Frequent communication via phone, email, and video conferencing.
• Work is performed in a temperature‑controlled office environment with standard lighting and noise levels.
• Position may require occasional travel to client site.

We offer a competitive salary based on experience and qualifications. The compensation range for this position is $100,000 to $120,000 annually, with potential for bonuses, stock and additional benefits.

ZenSource is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. If you require reasonable accommodation during the application or interview process, please contact ADArequests@digitalunited360.com