Jean Luck Sossmeier

CEO

Passo Fundo, Rio Grande do Sul, Brazil9 yrs 9 mos experience

Most Likely To Switch

Key Highlights

Over a decade of experience in backend development.
Expert in designing scalable systems for global SaaS platforms.
Strong leadership in driving complex software architecture.

Stackforce AI infers this person is a Backend Specialist in Fintech and SaaS industries with a focus on scalable architectures.

Contact

Skills

Core Skills

JavaSpring BootAwsKotlinMicroservices

Other Skills

PostgreSQLElasticsearchAmazon Web Services (AWS)Remote WorkMongoDBTest Driven DevelopmentWeb DevelopmentJava EESoftware ArchitectureRabbitMQDomain-Driven Design (DDD)Behavior-Driven Development (BDD)CDIDockerJavaServer Faces (JSF)

About

Technical Lead and Backend Specialist with over a decade of experience building high-performance, scalable systems for global SaaS platforms and fintechs. I design and lead mission-critical services using Java and Spring Boot mainly on AWS, powering real-time intelligence, massive data exports, and event-driven architectures used by millions. With a strong foundation in software architecture and engineering leadership, I thrive in distributed teams, drive clarity in complex systems, and consistently deliver resilient solutions at scale. Passionate about backend excellence, product-driven thinking, and mentoring high-performing teams, I’m focused on driving impact, quality, and long-term scalability.

Experience

Datassential

3 roles

Solutions Architect

Promoted

Jul 2025 – Present · 8 mos · Remote

Technical Lead

Promoted

Aug 2023 – Jul 2025 · 1 yr 11 mos · Remote

Technical Lead at the Expresso Team, responsible for designing and building the Global Operators and Sales Intelligence related initiatives.

JavaSpring BootPostgreSQLElasticsearch

Senior Software Engineer

May 2022 – Aug 2023 · 1 yr 3 mos · Remote

Senior Software Engineer at the Expresso Team, which responsible for designing and building the Global Operators and Sales Intelligence related initiatives.

Spring BootAmazon Web Services (AWS)PostgreSQLElasticsearchAWS

Jaya tech

4 roles

Tech Lead

Promoted

Aug 2023 – Apr 2024 · 8 mos

Software Engineering Specialist

Apr 2023 – Aug 2023 · 4 mos

Spring BootMicroservicesRemote WorkJavaAmazon Web Services (AWS)AWS

Senior Software Engineer

May 2022 – Apr 2023 · 11 mos

Spring BootMicroservicesRemote WorkJavaAmazon Web Services (AWS)AWS

Software Engineering Specialist

Dec 2021 – May 2022 · 5 mos

MicroservicesRemote WorkKotlinAmazon Web Services (AWS)AWS

C6 bank

Software Engineering Specialist

Dec 2021 – May 2022 · 5 mos · São Paulo, Brazil · Remote

Software Engineering Specialist at C6 Bank in the core credit management microservices ecosystem team, which handles 15 million customers running on AWS. The microservices were written in Kotlin with domain driven design, event driven architecture, event sourcing & CQRS.

MicroservicesAmazon Web Services (AWS)KotlinMongoDBAWS

Senado federal

Parliamentary Advisor on Technology & Communication

Mar 2020 – Aug 2021 · 1 yr 5 mos

Parliamentary Advisor on Technology & Communication for a Brazilian Senator's office, developing and integrating several solutions in order to improve general internal data, communications and legislation processes.

Spring BootJavaAmazon Web Services (AWS)AWS

Conta azul

Senior Software Engineer

Jan 2019 – Feb 2020 · 1 yr 1 mo

Senior Software Engineer in the Tax Obligations Squad for the most complete business management SaaS platform in the Brazilian market for small and medium businesses.
Worked on developing the most crucial component for the company's investment for accountants: services managing government complex tax document flows.
The microservices ran in AWS, used an event driven architecture and domain driven design.
Tecnologies: Spring Boot/Cloud/Data/Webservices, AWS SNS/SQS/RDS/S3, PostgreSQL, Redis, Flyway, Feign, Hystrix, Resillience4j, Jaeger, Prometheus, Grafana, Swagger, Terraform, Docker, Kubernetes, LogDNA, New Relic, Buildkite, JUnit, Mockito, AssertJ, Lombok, among others.

Spring BootMicroservicesRemote WorkJavaAmazon Web Services (AWS)AWS

Veloe

Senior Software Engineer

Jan 2018 – Jan 2018 · 0 mo

Senior Software Engineer on multiple small/medium features related to road tolls transactions.
A highly scalable microservices ecosystem with event driven architecture running on AWS.
Tecnologies: Spring Boot/Cloud/Data, AWS ECS/SNS/SQS/DynamoDB/Lambda, JUnit, Mockito, Cucumber.

Spring BootMicroservicesRemote WorkJavaAmazon Web Services (AWS)AWS

Parceria soluções empresariais (oficial)

Fullstack Software Engineer

Jan 2014 – Jan 2016 · 2 yrs

Software Engineer developing SaaS solutions integrated with the largest credit bureaus using Java EE related technologies & AWS.

Spring BootMicroservicesRemote WorkJavaAmazon Web Services (AWS)AWS

Compass.uol

Mobile Software Engineer

Jan 2011 – Jan 2012 · 1 yr

Mobile Engineer in multiple projects, developing native apps for iOS and Android using Objective C and Java. Highlight for the work done in Meu Vivo Mobile for one of brazilian largest telecoms.

JavaAmazon Web Services (AWS)AWS