Sergio Sansosti

About

I am a senior software engineer with more than 25 years of experience building, maintaining and troubleshooting production systems, with a strong background in backend development, telecom platforms, realtime systems and operational tooling.

My earliest and deepest specialism is VoIP and telecommunications: since 2005 I have worked extensively with Asterisk-based platforms, SIP/RTP troubleshooting, dialplan design, AGI/AMI integrations, carrier interconnects and production telephony environments.

More recently my work has expanded into modern full-stack and realtime web development — Laravel with React, Node.js, Next.js, Supabase/PostgreSQL, WebSockets — and AI-assisted development workflows. I use AI coding agents as a core part of how I work, bringing senior engineering judgement: understanding requirements, designing pragmatic solutions, reviewing generated code, and debugging production behaviour.

Experience

1. Senior Software Developer · Datapro Services Limited

   2002 — present

   Grays, England (remote)

   • Development, modernisation and operation of VoIP platforms, backend systems, realtime dashboards and client-facing reporting tools for premium rate telecom services.
   • Complex Asterisk dialplans, AGI/AMI backend components (call logic, credit control, service workflows).
   • SIP/RTP troubleshooting across carriers, endpoints and SBCs; log and packet-capture analysis with Wireshark.
   • Migration of telephony infrastructure from on-premise Asterisk to datacentre/cloud environments.
   • Realtime operational dashboards and secure reporting portals with Laravel, React and MySQL.
   • Billing, payments and service administration systems; SMS gateway and provider integrations; extensive automation in PHP, Bash and Linux.

   Asterisk · SIP · RTP · PHP · Laravel · React · Node.js · MySQL · Linux · Bash · AMI · AGI · WebSockets · Wireshark · AI-assisted development

2. Teacher Assistant — Stage Technologies Laboratory · Universidad Nacional de las Artes (UNA)

   2013 — 2014

   Buenos Aires, Argentina

   • Technology applied to the stage, in the Directing programme — where my software and theatre careers meet.

3. Software Developer · Abaco Informatica S.A.

   2000 — 2002

   Tandil, Argentina

4. Software Developer · Datapro Services Limited

   1999

   Grays, England, UK

5. Software Developer · Colegio de Médicos — 9° Distrito

   1994 — 1998

   Mar del Plata, Argentina

Skills

Side projects

• 1secbeatles.com

  Can you name a Beatles song from just its first second? A quiz built with Next.js.

More experiments on GitHub.

Education

• Systems Engineering — Facultad de Ciencias Exactas, UNICEN (1998)
• Postgraduate coursework in Object Theatre, Interactivity and New Media — UNA, Buenos Aires

• Languages: Spanish (native) · English (full professional)
• ICPC — 22nd International Collegiate Programming Contest, South American stage

Contact

The fastest way to reach me is email. I am also on LinkedIn and GitHub.