John Alcher Doloiras

Senior Backend Engineer with deep experience in Python and AWS, building and operating production web systems for financial services, telecom, and SaaS companies. Comfortable owning systems end-to-end: from architecture and implementation, to deployment and production support.

Software Engineer at Iress Ltd / ProSource (2024-09 – Present)

• Core member of XPLAN Platform Engineering, supporting infrastructure used across the Wealth division.
• Built and maintained internal platforms serving Australia’s largest financial services clients.
• Supported production systems through release pipelines, client escalations, and incident response.
• Maintained a 90% SLO for frontline investigations and bug-fix tickets supporting multiple production services.
• Executed modernization of legacy systems using microservices and micro-frontend architecture.

Senior Software Engineer at Snom GmbH / CC.Talent (2023-03 – 2024-09)

• Developed public REST APIs using Python (aiohttp) backed by DynamoDB for VoIP device integrations.
• Built React-based frontend components supporting VOIP provisioning and management workflows.
• Worked directly with physical VoIP devices to validate production integrations.
• Owned features end-to-end from API design to deployment.

Head of Engineering at Direct Works Media / ThinkDWM (2020-04 – 2023-02)

• Executed company-wide technology initiatives for a ~30-person development agency.
• Introduced a new development workflow that reduces project handover time by 50%.
• Automated cloud deployment process to speed up new project onboarding by an average of 2 weeks.
• Re-architected existing cloud implementations for cost considerations, with one project saving up to $1k/mo.
• Defined company wide standards such as automated deployments, unit testing, detailed monitoring, and service-oriented architecture – reducing reported bugs/incidents by 40%.
• Previously a Technical Lead (April 2021-December 2021) and a Software Engineer (April 2020-April 2021)

Solutions Architect at ACRE Aire (2020-10 – 2021-10)

• Designed and implemented a cloud-based Django application on AWS, enabling paperless workflows.
• Reduced operating costs by ~₱100k/year per department.
• Owned CI/CD and infrastructure using Terraform, Docker, Ansible, and GitLab CI.

Earlier Experience (2016 – 2019)

• Early-career roles covering web development, QA testing, and systems administration, providing a strong foundation for later backend and platform work.

Bachelor of Science in Computer Science, Major in Software Development – ACLC College of Apalit

Associate Degree in Multimedia Technology – ACLC College of Malolos