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I'm Marc Lally, a Senior Software Engineer focused on building scalable distributed systems on AWS. I design and operate serverless and service-oriented architectures, lead cross-functional teams through architectural transformations, and set platform-wide standards to drive reliability and scale. I enjoy turning complex requirements into practical, observable software, building AI-enabled workflows and agents to automate tasks, and mentoring engineers while collaborating with product and business stakeholders to ship high-impact solutions with velocity and sustainability.…I'm Marc Lally, a Senior Software Engineer focused on building scalable distributed systems on AWS. I design and operate serverless and service-oriented architectures, lead cross-functional teams through architectural transformations, and set platform-wide standards to drive reliability and scale. I enjoy turning complex requirements into practical, observable software, building AI-enabled workflows and agents to automate tasks, and mentoring engineers while collaborating with product and business stakeholders to ship high-impact solutions with velocity and sustainability.

Marc Lally

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I'm Marc Lally, a Senior Software Engineer focused on building scalable distributed systems on AWS. I design and operate serverless and service-oriented architectures, lead cross-functional teams through architectural transformations, and set platform-wide standards to drive reliability and scale. I enjoy turning complex requirements into practical, observable software, building AI-enabled workflows and agents to automate tasks, and mentoring engineers while collaborating with product and business stakeholders to ship high-impact solutions with velocity and sustainability.…I'm Marc Lally, a Senior Software Engineer focused on building scalable distributed systems on AWS. I design and operate serverless and service-oriented architectures, lead cross-functional teams through architectural transformations, and set platform-wide standards to drive reliability and scale. I enjoy turning complex requirements into practical, observable software, building AI-enabled workflows and agents to automate tasks, and mentoring engineers while collaborating with product and business stakeholders to ship high-impact solutions with velocity and sustainability.

Available to hire

I’m Marc Lally, a Senior Software Engineer focused on building scalable distributed systems on AWS. I design and operate serverless and service-oriented architectures, lead cross-functional teams through architectural transformations, and set platform-wide standards to drive reliability and scale.

I enjoy turning complex requirements into practical, observable software, building AI-enabled workflows and agents to automate tasks, and mentoring engineers while collaborating with product and business stakeholders to ship high-impact solutions with velocity and sustainability.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Full Stack Developer | Tech Lead at Codeium

February 1, 2025 - January 1, 2026

Full-stack development of enterprise-grade AI coding assistants, optimizing real-time inference delivery, and implementing zero-trust authentication for multi-tenant deployments; established observability and robust CI/CD patterns.

Senior Full Stack Developer at Shell Global Energy

March 1, 2023 - December 1, 2024

Engineered scalable horizontally scalable services on Node.js/Lambda; optimized data fetching and caching strategies for high-throughput workloads; implemented PCI DSS-aligned security and governance.

Senior Full Stack Developer | Tech Lead at Studio Rotate

June 1, 2021 - July 31, 2021

Directed technical delivery for Next.js and Vue.js applications; designed clean API contracts and governance; established end-to-end testing and CI/CD patterns; improved frontend performance and developer productivity.

Senior Front End Developer at Preqin

December 1, 2019 - November 1, 2020

Led frontend architecture for a high-traffic financial platform using React and Elasticsearch; reduced bundle sizes, improved accessibility and performance; implemented ADRs and testing practices to stabilize critical data flows.

Senior Front End Developer at Melod JR

February 1, 2019 - November 1, 2019

Built a custom React-based CMS on Node.js/Serverless for cross-platform asset distribution; engineered resilient data pipelines and CI/CD via IaC; improved performance with code-splitting and caching strategies.

Senior Backend Developer at Big Clever Learning

April 1, 2017 - November 1, 2017

Architected a decoupled microservices platform; integrated Stripe for PCI-compliant transactions; implemented contract testing and scalable deployment patterns; improved security and data integrity.

Senior Full Stack Developer | Team Lead at Purple Bridge Publishing

October 1, 2016 - March 1, 2017

Led delivery of standardized RESTful APIs and data models for educational content; introduced Docker and CI/CD; mentored engineers and promoted architectural thinking.

Senior Full Stack Developer at MediaCode London

January 1, 2015 - September 1, 2016

Built and maintained enterprise software for diverse domains; contributed to API design, database schemas, and performance optimizations; implemented testing culture and CI/CD pipelines.

Software Developer at HSBC

January 1, 2001 - February 1, 2006

Developed mission-critical online banking features with strong security focus; implemented data integrity and performance improvements across core banking services.

Software Developer at Next Ltd

January 1, 1997 - January 1, 2001

Built customer-facing transactional web applications; contributed across requirements discovery, design, implementation, testing, and deployment with a focus on reliability.