Senior Full-Stack Engineer

Aptia Group; Orlando (FL); Hybrid; USD 100,000 - 130,000; Full time

Job summary

A technology company in Lake Mary, FL is seeking a Senior Full Stack Engineer to design and develop scalable applications and collaborate with cross-functional teams. You will have the opportunity to mentor junior engineers and shape technical decisions while working in a hybrid environment, on-site three days a week. The ideal candidate will have at least 8 years of software development experience and expertise in backend programming, AWS, and database optimization, along with a passion for delivering high-quality software.

Qualifications

• 8+ years of software development experience.
• Expertise in at least one strongly typed backend language.
• Advanced SQL skills with relational databases.
• Hands-on experience with AWS services.

Responsibilities

• Collaborate with teams to understand product requirements.
• Design and implement scalable full stack applications.
• Develop responsive React frontend interfaces.
• Build robust backend services with test coverage.
• Optimize database performance and manage data relationships.
• Architect and maintain cloud infrastructure on AWS.
• Write and maintain automated tests.
• Mentor junior engineers and contribute to decisions.
• Participate in code reviews and maintain standards.

Skills

Software development experience

Backend programming languages (Java, Scala, Kotlin, C#, Typescript)

Advanced SQL skills

Core AWS services

Unit and integration testing expertise

Distributed systems and microservices

Tools

PostgreSQL

Terraform

Cypress

Docker

Kubernetes

Job description

At Aptia, we\'re building technology that powers better benefits experiences through innovation, scale, and collaboration. As a Senior Full Stack Engineer, you\'ll play a key role in designing and developing solutions that move our products forward - from the front-end experience to the cloud infrastructure that supports it. You\'ll collaborate closely with product, business operations, and client teams to translate complex requirements into elegant, scalable applications. This role offers the opportunity to shape technical decisions, mentor other engineers, and deliver high-quality, high-impact software that supports Aptia\'s mission to simplify benefits administration for employers and their employees.

Location: This position is based in our Lake Mary, FL office as part of a hybrid working arrangement; you will be expected onsite three (3) days per week.

Responsibilities

• Collaborate with product team, business operations, and customers to understand and develop product requirements
• Design and implement scalable full stack applications and APIs
• Develop responsive, user-friendly React frontend interfaces
• Build robust backend services with comprehensive test coverage
• Optimize database performance and manage complex data relationships
• Architect and maintain cloud infrastructure on AWS
• Write and maintain automated unit and integration tests
• Collaborate with cross-functional teams to deliver high-quality solutions
• Mentor junior engineers and contribute to technical decision-making
• Participate in code reviews and maintain engineering standards

What we\'re looking for

• 8+ years of software development experience
• Expertise in at least one strongly typed backend language: Java, Scala, Kotlin, C#, or Typescript
• Advanced SQL skills with relational databases, preferably PostgreSQL, including complex queries with joins and subqueries, Common Table Expressions (CTEs), and query optimization
• Hands-on experience with core AWS services: Compute (EC2 or ECS), CloudFront, ELB, S3, IAM
• Testing expertise including automated unit and integration testing
• Experience with distributed systems and microservices architecture
• Strong understanding of software engineering best practices

Preferred Qualifications

• Experience with Terraform for infrastructure as code
• End-to-end testing experience with frameworks like Cypress
• Knowledge of containerization technologies (Docker, Kubernetes)
• Experience with CI/CD pipelines and DevOps practices
• Background in high-traffic, production environments

Seniority level

• Mid-Senior level

Employment type

• Full-time