Senior Developer

At Significance, we believe the best results come from investing in great people. As a woman-owned consulting firm supporting federal civilian and Department of Defense customers, we bring together talented professionals who are passionate about solving complex challenges and making a meaningful impact.

We're proud of the culture we've built - one rooted in trust, collaboration, respect, and genuine relationships. Our people are empowered to share ideas, grow their careers, and deliver exceptional results while supporting missions that matter. It's a culture we're proud of, and one that has earned us recognition as a Washington Business Journal Best Place to Work for seven consecutive years.

Significance, Inc is seeking an experienced Senior Developer to join our growing team.  This position is remote and will require a Public Trust clearance.

 

The Senior AWS Developer will design, build, and maintain a secure and scalable cloud-based integration layer. This role is critical in enabling real-time and event-driven data exchange across enterprise systems.

Design and implement RESTful APIs using Amazon API Gateway and backend services such as AWS Lambda and EC2

Build and manage cloud-native data solutions using Amazon RDS, ensuring data integrity and reliability

Develop event-driven architectures using Amazon S3, SQS, and SNS for asynchronous and file-based processing

Implement security best practices, including:

IAM roles and policies

VPC configuration

Data encryption (at rest and in transit)

Logging and audit controls

Ensure compliance with ATO (Authority to Operate) requirements

Collaborate with internal teams and external system owners to define:

Integration patterns

API contracts

Deployment strategies

Automate infrastructure using Infrastructure as Code (IaC) tools such as CloudFormation or Terraform

Monitor system performance and optimize for cost, scalability, and availability

Provide technical leadership and mentorship to junior developers

Ensure alignment with enterprise architecture and governance standards

15+ years of software development experience, with strong focus on AWS
Hands-on experience with:
API Gateway, Lambda, EC2
RDS (PostgreSQL, MySQL, or Oracle)
S3, SQS, SNS
Strong knowledge of cloud architecture and integration patterns
Experience implementing secure, compliant systems (ATO/FedRAMP preferred)
Proficiency in Infrastructure as Code
Strong understanding of networking (VPCs, subnets, security groups)
Experience with monitoring and logging tools (e.g., CloudWatch)