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Proven in practice

Real projects, measured results — from telecom and healthcare to crypto and AI. Here's how we've cut costs and lifted performance for teams across Europe and beyond.

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How we help Big companies with big projects

We perform system analysis and optimization for medium and large enterprises, helping them reduce costs, increase performance, and ensure stability — by using the latest technologies while making decisions based on experience and real impact.

Success stories

From multi-million-dollar cloud savings to performance turnarounds, blockchain operations, and custom AI automation — a selection of the work we've delivered for telecom, healthcare, crypto, and enterprise clients.

Telecom provider — $2M+ saved with Big Bad Byte

One targeted RDS + Elasticsearch optimization alone cut over $1M a year. Across the engagement we have reduced this telecom provider’s AWS spend by more than $2M — without compromising performance.

Success story

TELECOM

Saved over $2.0M in total
Success story

CRYPTO

Cloud cost -75% reduced

Crypto platform cuts cloud costs 70–80% after migration

For a crypto company we ran a staged migration: first onto our self-managed Kubernetes cluster on Hetzner, then from Hetzner to AWS following AWS best practices — where costs (network especially) were huge. Through tuning, and close work with their dev team, we cut costs by 70–80%. We also run 40+ blockchain nodes for them across different bare-metal providers.

AI invoice parsing automates an accounting firm’s workflow

We built a custom AI agent that parses many different invoice formats with a very high success rate and integrated it directly into the firm’s existing system — replacing slow, manual data entry.

Success story

AI AUTOMATION

Parsing accuracy 95%+ across invoice types
Performance 6.5×

USA telecom system throughput

A US telecommunications system could barely handle 20,000 orders in 15 minutes. After a 3-year performance testing and tuning effort, it now handles 130,000 — and withstands new product launches without issues.

Healthcare Go-live

Estonian healthcare deadline saved

Approaching a critical go-live, we identified a severe bottleneck affecting multi-user functionality and redesigned the application architecture — avoiding a potential delay to the launch.

Performance days → min

National healthcare reporting

Reports in a national healthcare system took days to generate. Through database and SQL optimizations we cut generation time to minutes, far exceeding the client’s expectations.

Cost €36k → €6k

Metaverse cloud optimization

A Metaverse project was massively over-scaled on Google Cloud. Through resource right-sizing and database tuning we reduced monthly spend from €36,000 to €6,000 — with no impact on user experience.

Performance 3 months

Telecom go-live performance testing

With go-live three months out and performance tests unfinished, we wrote and executed them within a month, scaled the infrastructure, and surfaced critical external dependencies to ensure a smooth launch.

DevOps Live

National post self-service fix

A national post’s self-service system degraded under multi-user load due to a bug in Spring’s cache management. We reimplemented the affected class, letting the system go live without performance compromises.

Performance On schedule

German e-documents platform

Set to launch in a month, this e-documents exchange platform needed urgent validation. Our testing identified and addressed issues across the stack, keeping the schedule intact.

Performance Root cause

Lithuanian IT services provider

An international IT services provider had poor performance in its core utilities. Our system analysis pinpointed the true bottlenecks — and disproved the suspected ones — guiding informed enhancements.

Success stories

Telecom provider saves $2M+ with Big Bad Byte

One targeted RDS + Elasticsearch optimization alone cut over $1M a year. Across the full engagement we have reduced the provider’s AWS spend by more than $2M — improving efficiency without compromising performance.

Challenge

A leading telecom provider was facing rapidly increasing AWS costs due to inefficient resource allocation across multiple environments.

  • 9 RDS databases across production and non-production setups
  • Over-provisioned Elasticsearch infrastructure
  • Performance stability needed to be maintained despite cost cuts

The company required a scalable and data-driven optimization strategy that would reduce expenses without compromising system reliability.

Solution

We focused on optimizing the client's AWS infrastructure to reduce costs and improve resource efficiency across RDS and Elasticsearch environments.

AWS RDS Optimization

  • Analyzed usage patterns and cost reports
  • Switched storage type from IO1 → GP3, maintaining IOPS with zero additional cost
  • Implemented instance scaling - larger during peak hours, smaller during off-peak

Annual savings: $560,000

Elasticsearch Optimization

  • Evaluated performance and instance utilization
  • Replaced high-cost instance types with optimized alternatives
  • Reduced data node count by 33% after in-depth testing

Additional annual savings: $470,000

Outcome

Big Bad Byte's optimization strategy delivered $1,030,000 in total annual savings, with a projected $2M+ in additional savings planned for the following year.

The client's cloud infrastructure became not only leaner and faster, but also strategically scalable for future growth.

Big Bad Byte provided a clear, data-driven approach that immediately translated into measurable savings. Their team not only reduced our AWS costs dramatically but also helped us build a sustainable optimization framework for the future. They've set a new benchmark for what we expect from our technology partners.

— CTO, Leading Telecom Provider

We analyze with precision, build trust through clarity, act with purpose, and deliver measurable impact every time.

Analyze

We dive deep into your IT infrastructure, using advanced tools and expertise to uncover inefficiencies and hidden costs.

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Clarify

We explain our findings transparently, giving you a clear understanding of what needs improvement and why it matters.

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Act

We implement tailored solutions that cut costs, boost performance, and ensure stability for your business.

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Assure

We validate every change, ensuring your systems run as expected — building confidence and long-term trust.

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