Job Description

Build What Matters—Resilient Cloud-Native Architecture on AWS

At InRhythm, we don’t just build apps—we transform industries. We launch high-impact digital platforms, modernize mission-critical systems, and create human-centered experiences that shape the way people live, work, and thrive.

We’re seeking a Senior AWS Engineer to lead the development of resilient, event-driven cloud applications using modern serverless technologies. This is a critical hands-on engineering role with architectural influence—ideal for someone who thrives in distributed systems, ultra-low RTO/RPO environments, and production-scale AWS solutions.

Who We Are

We’re InRhythm. We build high-impact digital products that solve real-world problems at scale.

Since 2002, we’ve helped modernize platforms and accelerate innovation for some of the world’s most recognized enterprises—including Goldman Sachs, Morgan Stanley, Mastercard, Fidelity, UnitedHealth Group, Amazon, and more.

We specialize in web, mobile, and cloud-native development—but what sets us apart is our culture of craftsmanship, velocity, and outcome-driven delivery. We don’t wait to be told what to do. We lead from within.

Build Resilient, Event-Driven Systems

Cloud infrastructure isn’t just a foundation—it’s a product enabler.

As a Senior AWS Engineer , you’ll architect and build multi-region, low-latency applications that are designed for high availability, minimal data loss, and rapid recovery. You’ll work heavily with AWS Lambda , Step Functions , and DynamoDB to construct loosely coupled, fault-tolerant systems that handle critical workloads and real-time data flows.

You’ll also apply your expertise in building cloud-native apps that meet aggressive RTO (Recovery Time Objective) and RPO (Recovery Point Objective) goals, often in environments where global consistency, availability, and durability are non-negotiable.

What You’ll Do

As a Senior AWS Engineer at InRhythm, you will:

• Design and implement highly resilient, event-driven architectures using AWS Lambda and Step Functions
• Build serverless applications with scalable APIs, asynchronous workflows, and fault-tolerant patterns
• Leverage DynamoDB (including advanced partitioning strategies) to handle real-time data and state at scale
• Work around current AWS limitations (e.g., DynamoDB Global Tables not yet GA) to build multi-region solutions with low RPO and high durability
• Architect systems for low RTO/RPO disaster recovery, leveraging cross-region failover strategies and automation
• Implement observability and alerting using CloudWatch, X-Ray, and third-party monitoring tools
• Automate infrastructure with IaC tools like AWS CDK, Terraform, or CloudFormation
• Optimize cold-start performance, event retries, and workflow orchestration for high-throughput environments
• Collaborate with product, backend, and platform teams to integrate infrastructure into CI/CD workflows
• Contribute to cloud engineering best practices, including secure defaults, cost optimization, and environment parity
• Mentor fellow engineers on cloud architecture and resilience engineering patterns

Requirements

You’ll bring:

• 8+ years of software engineering experience, including 3+ years building production systems on AWS
• Deep hands-on experience with AWS Lambda, Step Functions, and DynamoDB
• Expertise in designing low RTO/RPO systems, multi-region architectures, and fault-tolerant workflows
• Familiarity with the current limitations around DynamoDB Global Tables and experience implementing workarounds
• Experience building real-time or near real-time event-driven systems (e.g., using SQS, SNS, EventBridge)
• Strong proficiency in scripting and backend languages such as Python, Node.js, or Go
• Experience with infrastructure as code (IaC) using CDK, Terraform, or CloudFormation
• Solid understanding of distributed system design, idempotency, retries, and failure recovery
• Strong communication and consulting skills with the ability to lead architecture discussions with stakeholders
• Bonus: Experience building for regulated industries or high-compliance environments (e.g., finance, healthcare)

Why You’ll Thrive at InRhythm

We’re a community of builders who believe in doing our best work—and helping others do the same.

Our engineers are trusted to lead architecture for systems that demand zero downtime, instant scalability, and seamless recovery. If you’re excited to work on production-grade cloud platforms that power critical real-time experiences, you’ll find your place here.

At InRhythm, you’ll:

• Build systems that redefine resilience, speed, and user expectations
• Collaborate in autonomous, empowered teams that value deep technical craft
• Contribute to open-source and internal frameworks that improve how cloud infrastructure is delivered
• Lead tech talks, mentor peers, and help define best practices for cloud-native delivery
• Work in an environment that values experimentation, thought leadership, and bold ideas

We don’t just build—we build what’s next. Together.

Benefits

At InRhythm, we believe in building a better workplace. When you join our team, you can expect:

• Comprehensive and customizable Medical, Dental, and Vision Plans
• 401(k) Matching
• Scalable PTO

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