09/30/2026 updated

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Engineering Leader | Agentic AI, AWS Serverless & Backend Engineering | Remote (Portugal)

Quarteira, Portugal
Only remote
Bachelor's degree in Computer Science and Technologies
Quarteira, Portugal
Only remote
Bachelor's degree in Computer Science and Technologies

Profile attachments

Angelo_Leggio_CV_2026_ATS.pdf

About me

I get AI past the pilot stage and into production. Most recently Head of Backend at Outplay (~80 microservices on AWS), where I turned an agentic code review PoC into a tool engineers used daily. 20+ years in backend engineering and team leadership. Remote from Portugal for UK & EU clients.

AI AgentsLLMBedrockJava (Programming Language)JavaScriptApplication Programming Interfaces (APIs)Agile MethodologyAmazon Web ServicesCloud EngineeringContinuous DeliveryContinuous IntegrationDevOpsAmazon DynamoDBEngineering ManagementRecruitmentPython (Programming Language)MySQLScrum MethodologySoftware ArchitectureRedisSimple Object Access Protocol (SOAP)TypeScriptTest-Driven Development (TDD)Apache CamelMulti-Agent SystemsPrompt EngineeringAWS LambdaBackendCloudformationEvent Driven ArchitectureAWS AuroraTeam ManagementOsgiApi DesignApi GatewayRestful ApiDomain Driven DesignServerless ComputingDockerServicenowMicroservices
Agentic AI & LLM Engineering
Took an agentic code review system from proof of concept to production, used daily by engineering: parallel specialist agents on Amazon Bedrock, integrated into the delivery pipeline, with cost and latency measured and a feedback loop on every review. Now building its next generation: dynamic orchestration, context-gathering agents, replay-based evaluation against historical reviews, and token-budget control.

Backend & Cloud Engineering
Deep hands-on experience with Python, TypeScript, JavaScript and AWS serverless (Lambda, Step Functions, API Gateway, DynamoDB, Aurora). Strong background in microservices, event-driven integration and REST API design, most recently across ~80 microservices in half a dozen environments.

Engineering Leadership & Team Scaling
Grew a department from 3 to 8 engineers across backend, DevOps, frontend and DataOps as hiring manager, owning the whole process: writing job ads, screening, behavioural interviews, and designing and scoring technical assessments. Line management, career frameworks and stakeholder management; drove Agile, BDD and a culture of operational excellence.

Delivery, CI/CD & Reliability
GitLab CI/CD, DORA metrics, DevOps and reliability engineering. Cut environment provisioning from ~6 months to 1 week, improved delivery KPIs by 25% for four consecutive quarters, and eliminated 24/7 on-call rotations. TDD and BDD practitioner across multiple roles.

Legacy Modernisation & Regulated Integrations
Consolidated legacy systems without pausing delivery while launching three global titles; built joint flows with a regulated gaming partner (KYC, anti-fraud, geofencing).

Integration Platform Engineering
Designed and built an IPaaS integration platform from scratch (Java EE, Spring, Apache Camel, OSGi, JMS, SOAP/REST), cutting bespoke integration effort by up to two-thirds for enterprise ITSM customers.

Databases
DynamoDB, RDS/Aurora, Redis, Redshift, MongoDB, MySQL, MS SQL Server, Oracle SQL.

Frontend
Working knowledge of React and Angular in full-stack, cross-discipline teams.

Earlier: ERP & Warehouse Management
Senior developer, technical lead and project manager on ERP and warehouse management rollouts across several countries (Oracle PL/SQL, ANSI C).

Experience

Professional experience10+ years
Freelancer since2026

Languages

EnglishFluentItalianNative speakerPortugueseFluent

Project history

Independent Consultant - AI Engineering & Engineering Leadership

Self-employed
Helping engineering organisations get AI past the pilot stage and into production through hands-on engagements, fixed-fee diagnostics and part-time engineering leadership for UK and EU clients. Building an agentic code review tool with context-gathering and consolidation agents around parallel specialist reviewers on Amazon Bedrock, cost-aware orchestration, and evaluation by replaying repository history against real human reviews.

Head of Backend Technology

Outplay Entertainment Ltd

Internet & IT

50-250 team member

Led a backend department of 5-8 engineers behind 10 live global mobile titles and 2 in development, running approximately 80 microservices across half a dozen environments on AWS. Took an AWS-funded proof of concept for agentic code review and rebuilt it into the delivery pipeline: up to 5 specialised agents reviewing every change in parallel, used daily by engineering, delivered at zero cost to the business. Cut environment provisioning from approximately 6 months to 1 week, improved DORA-style delivery KPIs by 25% for four consecutive quarters, and eliminated 24/7 on-call rotations through reliability engineering. Delivered the backend for 3 new global title launches while consolidating legacy systems. Built joint flows with a regulated gaming partner (VGW): account lifecycle with KYC, sweepstakes (AMOE), anti-fraud and geofencing. Stack: Python, JavaScript, React, AWS (Lambda, Step Functions, API Gateway, DynamoDB, RDS/Aurora, Redis, Redshift, CloudFront, Bedrock, Comprehend), GitLab CI/CD, Amplitude.

Technical Lead

Outplay Entertainment Ltd

Internet & IT

50-250 team member

Grew the department from 3 to 8 engineers in two cross-discipline teams (backend/DevOps, frontend, DataOps) as hiring manager, owning the whole process: job ads, screening, behavioural interviews, and designing and scoring technical assessments. Built career paths and a culture of feedback and operational excellence, and drove Agile, BDD, CI and CD.

Senior Software Engineer Team Lead

Administrate Ltd

Internet & IT

50-250 team member

Led a cross-timezone team of 5 delivering a bidirectional integration with Microsoft Navision (OData REST) for a global training management platform. Drove delivery practices to 2+ daily deployments per engineer, strengthened architecture through DDD, TDD and automated UI testing (Cypress), and handled line management, mentoring and onboarding. Stack: Python, Flask, TypeScript, React, Angular, GraphQL, MySQL, Docker, AWS, CircleCI.

Integration Software Analyst

Axios Systems

Internet & IT

50-250 team member

Designed and built the company's IPaaS integration platform from the ground up, turning bespoke integrations into a scalable product and cutting integration effort by up to two-thirds. Delivered full-lifecycle integration projects for enterprise ITSM customers, connecting approval-driven service workflows to wider systems with high-throughput, event-driven designs. Mentored junior engineers. Stack: Java EE, Spring, Apache Camel, OSGi (Karaf), JMS, SOAP/REST, Angular, Lua, MS SQL Server, Jenkins.

Earlier Experience – ERP, WMS & Software Development

Reply, ERPlan, Uni.Comp and others (Italy, Brazil)

Internet & IT

Earlier experience spanning multiple roles and companies in Italy and Brazil from 2000 to 2014. At Reply (3 years): senior consultant on warehouse management system deployments in Italy, Belgium, the USA, Argentina and Brazil, as developer, technical leader, functional leader and project manager using Oracle PL/SQL and JSP. At ERPlan and Uni.Comp (7.5 years): senior developer on ERP deployments for manufacturing including automotive, covering MRP and accounting using ANSI C, Oracle SQL, Bash, and HP-UX. Earlier roles included web and e-commerce development, Java/JSP web services portal, computer science and programming teaching, and ANSI C development of a neural-network prototype for data mining (2000).

Certificates

FAA Level 2 Award in First Aid for Mental Health

FIRST AID AWARDS LIMITED

2025

Growth Leadership

Tack TMI Leadership Factory

2023

Foundation in IT Service Management - ITIL

QA Ltd

2016


Portfolio


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