Eridian
Independent consultancy

Database consulting & optimization.Security analysis.Project management.

One consultancy, three disciplines — for engineering teams that need senior accountability from diagnosis to delivery.

10+
Years operating production systems
30+
Engagements across SaaS & fintech
24/7
Incident response on retainer
What we do

Three disciplines. One accountable team.

We engage where data, security, and delivery intersect — the seams where most projects stall.

Database consulting & optimization

Schema design, query tuning, and infrastructure sizing for OLTP and analytical workloads. We make slow systems fast — and keep them that way.

  • Performance audits & index strategy
  • Replication, sharding, and HA design
  • Migrations between Postgres, MySQL, SQL Server

Security analysis

Threat modeling, code and configuration review, and posture assessment grounded in how attackers actually operate — not checklists.

  • Application & infrastructure threat models
  • Cloud and IAM configuration review
  • Incident response & remediation planning

Project management

Senior delivery leadership for complex technical programs. We bring clarity to scope, sequencing, and stakeholder communication.

  • Fractional CTO & program leadership
  • Roadmap and milestone planning
  • Vendor and cross-team coordination
How we work

A repeatable engagement model, built for senior engineering teams.

Every engagement runs the same way — predictable, transparent, and scoped so you can stop at any phase.

  1. 01

    Diagnose

    We start with a short, fixed-scope engagement: read the code, the schema, the runbooks. Map the real risks and the real wins.

  2. 02

    Prioritize

    A concrete plan with sequencing, ownership, and effort estimates. No vague recommendations — work you can put on a sprint board.

  3. 03

    Execute

    Hands-on delivery alongside your team, or independent execution where appropriate. We measure outcomes, not hours.

  4. 04

    Hand off

    Documentation, dashboards, and the operational knowledge your team needs to keep things healthy after we step away.

Let’s talk

Have a system that’s slow, fragile, or behind schedule?

Send a short note describing the situation. We’ll reply within one business day with whether — and how — we can help.

tihomir.culig@eridian.hr