PROTOCODE
ENSR
04 projects rev C no client names

Selected work, without the names.

We don’t name clients. Each project is described by what we did and the system we worked on. References are available on request.

P-01 · project

ISO/IEC 27001 readiness

contextSaaS platform · technical lead
periodAug 2026 – ongoing
statusongoing

work

Security policies, system and architecture documentation, and the technical controls behind them across AWS and back-end microservices.

Readiness work, not audit or certification.

checks

  • Unused services disabled
  • Inbound traffic limited to the CDN
  • SSH → AWS Session Manager
  • Evidence collected automatically

system

SaaS product for marketers · AWS, Terraform, microservices

About compliance readiness →

P-02 · project

Infrastructure cost optimisation

contextSaaS platform
period2022 – 2023
statuscompleted

work

Monthly AWS infrastructure costs cut by 58% by right-sizing instance counts and sizes and removing unused resources.

result · drawn to scale

system

SaaS platform · AWS

P-03 · project

Business jet charter platform

contextClient project · full stack
period2022 – 2023
statuscompleted

work

A booking platform where charter operators bid on client requests in an open process. Built end to end: front-end, back-end, cloud architecture and database.

built

  • Front-end
  • Back-end
  • Cloud architecture
  • Database

system

PHP, Laravel, Node.js · Hetzner Cloud · PostgreSQL with PostGIS

rev C · status tags: blue · ongoing, ink · completed

04.1 references rev C

Want to talk to someone we worked with?

References are available on request. Ask by email.

write to
hello@protocode.rs
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Within one business day
studio
Zrenjanin, Serbia
works
Remote only, mostly international clients, open to clients anywhere
time zone
Belgrade (CET/CEST)