Full-Stack & Backend Engineering

 Enterprise Applications | Full-Stack & Backend Engineering
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> Location: Philadelphia, PA
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> Job Typexxxxxxxxxxxxxxx
> About the Role
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> We are looking for a high-caliber Senior Python Developer / Lead who thrives at the intersection of deep technical expertise and strategic leadership. This is not just a coding role — it's an opportunity to shape how enterprise-scale applications are built, evolved, and delivered. You will be a thought leader who drives architectural decisions, mentors engineers, and champions engineering excellence across teams. If you're a self-driven go-getter who takes full ownership and leads from the front, we want to hear from you.
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> What You'll Do
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> ▸   Architect, design, and develop robust, scalable Python-based enterprise applications and services.
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> ▸   Lead and mentor a team of developers, setting technical direction and best practices.
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> ▸   Drive the full software development lifecycle — from ideation, design, and implementation to deployment and post-release support.
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> ▸   Design and build cloud-native solutions on AWS leveraging Lambda, Redis, SQS, API Gateway, DynamoDB, and more.
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> ▸   Collaborate cross-functionally with Product, UX, and Business stakeholders to deliver high-impact solutions.
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> ▸   Integrate and work with CMS platforms (Sitecore preferred) to power customer-facing digital experiences.
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> ▸   Build and optimize upsell flows, offer management systems, and personalization engines for commercial platforms.
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> ▸   Contribute to Java-based systems and services when required, ensuring seamless integration across the stack.
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> ▸   Champion code quality through peer reviews, design critiques, and engineering guilds.
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> ▸   Translate ambiguous business problems into clear technical solutions and communicate them persuasively to senior stakeholders.
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> ▸   Stay ahead of the curve — evaluate emerging tools, frameworks, and cloud capabilities and evangelize adoption where appropriate.
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> What You Bring
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> ▸   10+ years of professional software engineering experience (8 years minimum, up to 14 years), with at least 4 years in a tech lead or senior individual contributor capacity.
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> ▸   Expert-level Python proficiency — Django, FastAPI, Flask, async programming, design patterns, and performance optimization.
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> ▸   Hands-on AWS experience — Lambda, API Gateway, S3, SQS/SNS, DynamoDB, ElastiCache (Redis), CloudWatch, IAM, and more.
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> ▸   Strong understanding of microservices architecture, RESTful APIs, and event-driven systems.
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> ▸   Working knowledge of Java — ability to read, review, and contribute to Java codebases.
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> ▸   Experience with Sitecore or other enterprise CMS platforms (AEM, Optimizely, etc.).
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> ▸   Background in commercial platforms — upsell logic, offer management, promotions, and pricing engines.
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> ▸   Proficiency with CI/CD pipelines, Docker, Kubernetes, and infrastructure-as-code tools (Terraform/CDK).
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> ▸   Strong command of SQL and NoSQL databases.
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> ▸   Proven track record of leading and delivering large-scale, complex engineering initiatives.
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> ▸   Excellent verbal and written communication skills — ability to articulate technical vision to both technical and non-technical audiences.
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> Leadership & Culture Fit
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> ▸   Thought leader who proactively identifies technical gaps and drives improvements without being asked.
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> ▸   Self-driven and highly motivated — you don't wait for direction; you create it.
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> ▸   Strong ownership mentality — you take responsibility for outcomes, not just outputs.
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> ▸   Collaborative by nature but decisive when needed.
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> ▸   Track record of coaching, mentoring, and growing engineering talent.
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