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AI × Operations Research

BIS — Butkeraites Intelligent SolutionsDecisions, engineered.

AI for the decisions that run your operations.

AI & optimization consulting and software development for industrial and retail operations — decision systems that automate approvals, optimize logistics, and price risk, grounded in real operations research and shipped as software you use.

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  • LLM / RAG
  • Optimization
  • Forecasting
Capabilities

Decision systems, end to end

AI & optimization consulting and software for complex operational decisions in industry, retail, logistics, and finance — optimization science with measurable ROI, not a generalist AI shop.

Operational optimization

Routing, scheduling, and allocation engines on real operations research — with measurable cost reduction.

Routing · scheduling · allocation

Approval & workflow automation

LLM/RAG that reads documents and keeps an auditable trail.

Risk, fraud & forecasting

Detection, prediction, and executive decision support.

How we work

From conversation to product

One honest arc — prove the value early, then build only what the data says pays.

  1. 01

    Approach

    Understand your operation and where decisions cost you.

  2. 02

    Define

    Frame the decision precisely, in measurable terms.

  3. 03

    Prove

    A focused POC on your real data — value first.

  4. 04

    Plan

    Agree scope, milestones, and the path to production.

  5. 05

    Build

    Engineer the engine — tested, auditable, yours.

  6. 06

    Deliver

    Ship it, integrated, with the trail to trust it.

Your environment, or ours.

Cloud-native on AWS, Azure, or GCP — or deployed straight into your stack.

See it run

Interactive demos, on real data

Real optimization solvers that run live in your browser — open one and watch it work.

CVRP · Split · SWAP*

Vehicle routing (Hybrid Genetic Search)

A giant tour becomes vehicle routes, then improves as a population evolves — Hybrid Genetic Search, live in your browser.

Open the demo
GTFS · min fleet + crews

Transit network optimizer

Real MARTA bus data → minimum fleet, driver duties, weekly roster. Or upload your own GTFS.

Open the demo
Exact · in-browser

Separation-constrained layout

Fit the most people into a room under a separation rule — solved to proven optimality.

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Interval uncertainty

The price of robustness

At identical spend, which plan best resists uncertainty? A robustness score, two ways that agree.

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Proven optimum

Anatomy of a failed anneal

201 runs, none feasible — take the failure apart, then reach the exact optimum in milliseconds.

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Built by BIS

We build our own products, too

Not just client work — BIS designs, ships, and runs its own software. Here are two live today.

Live SaaS · Powered by BIS

EveryTake — one event, every angle

A collaborative event photo album: every guest's camera becomes one shared, live gallery on the big screen — no app, no account.

See the product
Live platform · Powered by BIS

Cidade na Colina — churches on the map

A free web app that puts Brazil's evangelical churches on one map — find one near you, see its service times, add yours with no login.

See the product
The founder behind BIS

BIS is founded and led by Renan Butkeraites.

You hire the firm — Renan is the optimization scientist who founded it and leads every engagement. PhD in Operations Research (ITA / Unifesp), 7+ years shipping decision systems in production — LLM engineering fused with mathematical optimization.

PhDOperations Research
7+ yrsin production
5peer-reviewed papers
AtlantaGA · United States
  • 2026 — now

    IT Manager · SG Global Group · SG LAW · Atlanta, GA

    Leads IT and law-specific LLM systems — legal research, contract review, and document analysis, with strong data governance and security.

  • 2025 — now

    Director of Technology · Fresh Codes

    AI-driven product development — distributed cloud architectures (AWS/Azure), LLM-powered ML, and CI/CD; mentors the engineering team.

  • 2025 — 26

    Technical Lead · Serendipe — Instituto de Ciência e Tecnologia

    Set the architectural direction across high-impact R&D projects and built the technical team.

  • 2026 — now

    Founder · BIS — Butkeraites Intelligent Solutions

    AI & optimization consulting for operations — where BIS began.

Earlier: Optibus · Progress Rail (Caterpillar) · Safra · Porto Seguro · UniSoma.

Research & publications

PhD in Operations Research from ITA and Universidade Federal de São Paulo (plus a BSTech in Computational Mathematics). His doctoral work produced SIROM — a sampling-based robust optimization method that matched or beat the literature in 92.5% of cases — a distance-geometry method for 2D target location under uncertainty, and “Hardness,” a robustness measure for solutions under uncertain parameters. Every BIS engagement is built on that foundation: science, not model wrappers.

Selected publications

  • A sampling-based multi-objective iterative robust optimization method for the Bandwidth Packing Problem
  • Target location by a wireless sensor network from interval distances
  • Forecast UTI: predicting intensive-care-unit beds during the COVID-19 pandemic
  • A heuristic method for optimization under uncertainty based on Monte Carlo simulation
  • Efficient frontier of credit risk using Monte Carlo simulation
Track record

Proven across operations-heavy industries

Results delivered inside real companies — the experience that shaped BIS.

0+years shipping systems in production
0peer-reviewed publications
$0Kper-month logistics cost saved
+0%more high-quality credit leads

Insurance

Porto Seguro

Model deploy cut 5 days → 5 minutes; freight heuristic +~20% planning.

Banking

Safra

Credit-risk, marketing-mix & PIX fraud — +45% high-quality leads.

Logistics

Progress Rail · Optibus

Routing cut vehicles ~20%, saved ~$60K/mo across 40k+ locations.

Retail

Fashion e-commerce

GPT-4 vision extracts product attributes and writes SEO copy.

Experience & research across
SG Global · SG LAWFresh CodesSerendipeOptibusProgress Rail (Caterpillar)SafraPorto SeguroITA · Unifesp
In their words

What it's like to work with Renan

Recommendations from teammates, managers, and mentors — verbatim from LinkedIn.

LA
Leonardo Anício Alves PereiraSoftware Architect · AWS-Certified
I had the opportunity to work with Renan for several years, first as my team lead and later as my manager, and I can confidently say he was one of the best leaders I have ever worked with. Even in complex situations, he stays calm, absorbs the weight of the problem, and guides the team with clarity toward the best solution.
Reported to Renan
JL
Julio LinoBackend Engineer · FinTech
Renan is among the most intelligent and hard-working people I've ever known. What impresses me the most is his ability to handle highly complex problems and translate their complexity into a language so all stakeholders can understand and take action.
Studied together
LL
Luiz Leduino Salles-NetoFull Professor, UFSP
Renan proved outstanding in software development, analytics, and mathematical modeling. His ability to design, develop, and optimize software solutions is commendable, reflecting a deep understanding of theoretical concepts and practical applications.
PhD mentor
PM
Pedro MartinsSmart Cities & Ops Expert
My experience working with Renan was amazing! He always positioned himself as more than just a developer, but as a highly committed problem solver — and people genuinely enjoyed (and had fun!) working with him as a leader.
Worked together
TR
Thales RochaSenior Software Engineer
Renan demonstrated immense professionalism, proficiency, a result-oriented approach, problem-solving skills, and humility as a teammate. He was always open to teaching and learning. I highly recommend him for roles in technology.
Teammate at UniSoma
LA
Leonardo Anício Alves PereiraSoftware Architect · AWS-Certified
I had the opportunity to work with Renan for several years, first as my team lead and later as my manager, and I can confidently say he was one of the best leaders I have ever worked with. Even in complex situations, he stays calm, absorbs the weight of the problem, and guides the team with clarity toward the best solution.
Reported to Renan
JL
Julio LinoBackend Engineer · FinTech
Renan is among the most intelligent and hard-working people I've ever known. What impresses me the most is his ability to handle highly complex problems and translate their complexity into a language so all stakeholders can understand and take action.
Studied together
LL
Luiz Leduino Salles-NetoFull Professor, UFSP
Renan proved outstanding in software development, analytics, and mathematical modeling. His ability to design, develop, and optimize software solutions is commendable, reflecting a deep understanding of theoretical concepts and practical applications.
PhD mentor
PM
Pedro MartinsSmart Cities & Ops Expert
My experience working with Renan was amazing! He always positioned himself as more than just a developer, but as a highly committed problem solver — and people genuinely enjoyed (and had fun!) working with him as a leader.
Worked together
TR
Thales RochaSenior Software Engineer
Renan demonstrated immense professionalism, proficiency, a result-oriented approach, problem-solving skills, and humility as a teammate. He was always open to teaching and learning. I highly recommend him for roles in technology.
Teammate at UniSoma
LT
Larissa Terra-MuzeauOR & Data Science · PhD
Renan has always shown professionalism, acute operations research knowledge, and, at the same time, excellent communication skills and empathy. Working with him was a pleasure, thanks to both his competent hard skills and his sensible soft skills.
Together at CIRRELT
JG
João Guilherme AraujoData Science Specialist, Porto
He was a great team member, proposing solutions that improved the company and everyone involved. Thanks to his knowledge of DevOps and development tools we built our first MLOps platform, and he engaged everyone to write better, cleaner code.
Worked together
BD
Bruna de LimaData Scientist · ML & Pricing
A very helpful colleague who loves working as a team, contributing to the personal and professional development of his colleagues — and technically an excellent professional in software development.
Teammate
VM
Veihmeyer MouraProduct Owner · Progress Rail
Renan is truly a highly qualified professional, with great knowledge in developing systems using artificial intelligence. Working with him was very rewarding, innovative and a lot of learning.
Teammate
LT
Larissa Terra-MuzeauOR & Data Science · PhD
Renan has always shown professionalism, acute operations research knowledge, and, at the same time, excellent communication skills and empathy. Working with him was a pleasure, thanks to both his competent hard skills and his sensible soft skills.
Together at CIRRELT
JG
João Guilherme AraujoData Science Specialist, Porto
He was a great team member, proposing solutions that improved the company and everyone involved. Thanks to his knowledge of DevOps and development tools we built our first MLOps platform, and he engaged everyone to write better, cleaner code.
Worked together
BD
Bruna de LimaData Scientist · ML & Pricing
A very helpful colleague who loves working as a team, contributing to the personal and professional development of his colleagues — and technically an excellent professional in software development.
Teammate
VM
Veihmeyer MouraProduct Owner · Progress Rail
Renan is truly a highly qualified professional, with great knowledge in developing systems using artificial intelligence. Working with him was very rewarding, innovative and a lot of learning.
Teammate
See all recommendations on LinkedIn
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