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I'm a dedicated engineer with management and leadership experience, having led the technical development of enterprise SaaS platforms and architected multi-tenant Laravel/React applications on Azure. I also create data visualization tools and drive complex enterprise integrations, including SAML 2.0 SSO and security hardening. I thrive on turning ambitious ideas into secure, scalable software and leading cross-functional teams to deliver high-impact solutions. I enjoy collaborating with product management and executive stakeholders, mentoring junior engineers, and delivering secure, performant systems across industries such as retail, travel, and advertising tech. My background spans web applications, cloud deployments, API integrations, and DevOps, with a track record of delivering on time while maintaining high standards of quality and security.…I'm a dedicated engineer with management and leadership experience, having led the technical development of enterprise SaaS platforms and architected multi-tenant Laravel/React applications on Azure. I also create data visualization tools and drive complex enterprise integrations, including SAML 2.0 SSO and security hardening. I thrive on turning ambitious ideas into secure, scalable software and leading cross-functional teams to deliver high-impact solutions. I enjoy collaborating with product management and executive stakeholders, mentoring junior engineers, and delivering secure, performant systems across industries such as retail, travel, and advertising tech. My background spans web applications, cloud deployments, API integrations, and DevOps, with a track record of delivering on time while maintaining high standards of quality and security.

Stephen Rostanti

Full Stack Developer, Web Developer, Developer, +2

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I'm a dedicated engineer with management and leadership experience, having led the technical development of enterprise SaaS platforms and architected multi-tenant Laravel/React applications on Azure. I also create data visualization tools and drive complex enterprise integrations, including SAML 2.0 SSO and security hardening. I thrive on turning ambitious ideas into secure, scalable software and leading cross-functional teams to deliver high-impact solutions. I enjoy collaborating with product management and executive stakeholders, mentoring junior engineers, and delivering secure, performant systems across industries such as retail, travel, and advertising tech. My background spans web applications, cloud deployments, API integrations, and DevOps, with a track record of delivering on time while maintaining high standards of quality and security.…I'm a dedicated engineer with management and leadership experience, having led the technical development of enterprise SaaS platforms and architected multi-tenant Laravel/React applications on Azure. I also create data visualization tools and drive complex enterprise integrations, including SAML 2.0 SSO and security hardening. I thrive on turning ambitious ideas into secure, scalable software and leading cross-functional teams to deliver high-impact solutions. I enjoy collaborating with product management and executive stakeholders, mentoring junior engineers, and delivering secure, performant systems across industries such as retail, travel, and advertising tech. My background spans web applications, cloud deployments, API integrations, and DevOps, with a track record of delivering on time while maintaining high standards of quality and security.

Available to hire

I’m a dedicated engineer with management and leadership experience, having led the technical development of enterprise SaaS platforms and architected multi-tenant Laravel/React applications on Azure. I also create data visualization tools and drive complex enterprise integrations, including SAML 2.0 SSO and security hardening. I thrive on turning ambitious ideas into secure, scalable software and leading cross-functional teams to deliver high-impact solutions.

I enjoy collaborating with product management and executive stakeholders, mentoring junior engineers, and delivering secure, performant systems across industries such as retail, travel, and advertising tech. My background spans web applications, cloud deployments, API integrations, and DevOps, with a track record of delivering on time while maintaining high standards of quality and security.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Japanese

Intermediate

Work Experience

Head of Engineering (Fixed Term Contract) at Konvergent Ltd.

February 1, 2025 - February 1, 2026

Leading technical development of Konexis, a strategic roadmap visualisation SaaS platform serving enterprise clients including Coca-Cola, Burberry and Tesco. Architecting and maintaining a multi-tenant Laravel/React application deployed on Azure, with PostgreSQL database infrastructure. Developing proprietary “Sunray” radial canvas visualisation using React Konva for interactive strategic roadmap planning. Implementing complex enterprise integrations including SAML 2.0 SSO with identity providers such as PingFederate, resolving certificate validation and NameID format challenges. Managing security compliance including penetration test remediation and Azure infrastructure hardening. Coordinating cross-functional delivery with product management and executive leadership.

Full Stack Developer at Purple WiFi Ltd.

March 1, 2024 - January 31, 2025

Developed and enhanced the Portal, a monolithic Symfony application for managing WiFi services such as Splash Pages, Access Journeys, Terms & Conditions and hardware configurations. Created and optimised RESTful API endpoints to support scalable customer solutions. Spearheaded the modularisation of Paid WiFi features, simplifying service rollout and management. Collaborated with cross-functional teams to deliver highly secure, performant systems while adhering to Agile methodologies. Conducted code reviews and mentored junior developers, ensuring best practices are upheld across the team.

Full Stack Developer at Boons Media

September 1, 2020 - February 29, 2024

Created, maintained and improved a web based system for launching, reporting and updating AdTech Campaigns. Improved and created new API connections. Optimised AWS EC2 server configurations. Provided technical programming support or subject matter expertise to both junior team members and non-technical colleagues.

Software Developer at Ontro Travel Group

August 1, 2019 - June 30, 2020

Added new features to, bug-fixed, and maintained the company’s own in-house software, facilitating an extensive CRM system using the Symfony framework along with a MySQL Database and JavaScript for the frontend. Liaised with travel agents and customer services team to add useful features and fix issues. Worked with senior management to help with security flaws and scale the system. Maintained, and amended where necessary, the existing public-facing WordPress website, the main source of lead generation into the business.

Software Engineer at ZMP Inc.

December 1, 2016 - March 31, 2019

Researched, designed and implemented algorithms to facilitate in the development of autonomous driving technology, including sensor data analysis / sensor fusion and decision making. Created static and dynamic C++ libraries, in association with APIs, for other teams to use our developed functionality. Managed other engineers in various projects including setting tasks, conducting meetings, resolving problems and checking progress. Liaised with external, offshore companies on tasks where it made business sense to outsource them.

Developer at Bandstand

August 1, 2015 - October 31, 2016

Built websites and web applications using HTML, CSS, Javascript, PHP and MySQL from a creative design specification. Integrated, or built when necessary, third party APIs including Facebook, Twitter and Google. Liaised with designers, artworkers and account managers on layout and functionality. Maintained, and amended where necessary, existing websites and web applications.

Project Sub-leader at ZMP Inc.

April 1, 2018 - December 31, 2018

Managed three other engineers for the design and implementation of multiple object detection, tracking and 3D motion estimation utilising a deep learning approach. Reported to the project leader about progress and resolved problems in regards to myself and the other engineer’s work. At the time of leaving the project leader and senior management were very pleased with the current system and it was on track to finish within the set time, budget and scope.

Project Leader at ZMP Inc.

June 1, 2017 - November 30, 2017

In charge of sensor calibration for a brand new project to drive through an area and simultaneously produce a map of the road, pavement, street signs etc. Researched and tested devices and methods to produce a high quality calibration. Had one other engineer working under me for this project and so was in charge of setting their tasks, schedule and monitoring their progress. The project was a success and the sensors were calibrated to a high standard to be used in the map car project.