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Allainclair Flausino dos Santos

@allainclairflausinod

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Backend-focused software engineer specializing in Python, scalable APIs, and cloud infrastructure.

Brazil

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What I'm looking for

I am seeking backend or platform roles where I can build scalable APIs, mentor engineers, and work with modern cloud infrastructure in an engineering-focused culture.

I am a backend-focused software engineer with 10+ years building scalable web applications and distributed systems for companies such as Pinterest, Shipwell, and Telnyx.

I specialize in Python (FastAPI, Pydantic, SQLAlchemy) and modern cloud infrastructure including AWS, Docker, Kubernetes, and PostgreSQL, and I have a proven track record delivering high-performance APIs at scale.

I have led and mentored engineering teams, conducted 300+ technical interviews, and improved application performance and observability through monitoring and optimizations.

My background also includes research and applied optimization algorithms from my master’s work and hands-on systems work building embedded and microservice architectures for real-world deployments.

Experience

Work history, roles, and key accomplishments

Current

Backend Software Engineer

Current

Telnyx

Jan 2025 - Present (11 months)

Built and maintained ~8 microservices and ~24 HTTP endpoints to enable customers to monitor and manage thousands of daily SMS messages, improving reliability and operational visibility.

Python fastAPI Pydantic Docker Kubernetes PostgreSQL Pytest Observability

Software Engineer

The New England Center for Children

Aug 2023 - Dec 2024 (1 year 4 months)

Designed and maintained education‑tech applications, improving page load performance by 200% and migrated a Java monolith into Python microservices to modernize the platform.

Python fastAPI Pydantic Docker Kubernetes MySQL JavaScript Performance Optimization

Software Engineer

Martian

Mar 2024 - Jul 2024 (4 months)

Built LLM adapters integrating 12+ models and developed a full Sales Dashboard (frontend and backend) to provide sales insights and improve CRM visibility.

Python fastAPI Litestar HTMX Pydantic MongoDB Docker LLM Integrations

Backend Software Engineer

Shipwell

Sep 2022 - Jul 2023 (10 months)

Developed backend microservices integrating three freight load board APIs to streamline logistics workflows across North America and improve freight orchestration.

Python fastAPI SQLAlchemy PostgreSQL RabbitMQ Redis AWS Docker

Software Engineer

Aug 2019 - Jul 2022 (2 years 11 months)

Built and maintained Trust & Safety internal tools used by 100+ moderators and designed time‑series monitoring dashboards for Ads systems, improving observability and reducing downtime.

Python SQLAlchemy Flask JavaScript React MySQL Monitoring Mentorship

Assistant Professor

Marínga State University

Apr 2019 - Oct 2019 (6 months)

Taught undergraduate courses including Algorithms & Data Structures, Databases, Systems and Graph Theory, developing curriculum and assessing student performance.

Algorithms Data Structures Relational Databases Object Oriented Programming Teaching Curriculum Development

Tech Lead & Data Scientist

Seebot

Oct 2015 - Sep 2019 (3 years 11 months)

Led a team of 5 to design and deploy smart traffic light systems, created traffic simulators and optimization algorithms that reduced vehicle waiting times by 200–400%, and deployed solutions at four intersections.

Python Sumo Traffic Simulation Optimization Embedded Systems Distributed Systems

Data Scientist

EarlySec

Jun 2018 - Mar 2019 (9 months)

Built NLP-based security applications to filter, classify, and cluster social media messages to alert clients of anomalous events and improve security assurance.

Python scikit learn Elasticsearch Kafka Spark NLP Data Pipelines

Education

Degrees, certifications, and relevant coursework

Maringá State University

Master of Science, Computer Science

2014 - 2016

Activities and societies: Thesis research on VNS metaheuristic applied to scheduling; published related papers and participated in conferences.

Master's degree in Computer Science focused on metaheuristic algorithms with a thesis on Variable Neighborhood Search applied to the Bus Driver Schedule Problem.