Tech Lead, Backend – Java

Finaya

. Serve as the technical authority for Java back-end development and make decisions on architecture, best practices, and coding standards .

Posted 10/6/2026full-timeRemote • BrazilSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Java Back-End Development, with a focus on building and evolving credit platforms. Capable of leading technical decisions, mentoring teams, and ensuring high-quality, scalable solutions in financial systems.

Highest-signal resume keywords

Java 11+ ProficiencySpring Boot FrameworkRESTful API DevelopmentHigh-Volume Transaction Systems ExperienceTechnical Leadership in Back-End Development

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Java 11+Spring BootRESTful APIsPostgreSQLMongoDBKafkaRabbitMQAutomated TestingEvent-Driven ArchitectureSystem Integration

Soft Skills

Strong Communication SkillsConflict ManagementCollaborative MindsetSense of OwnershipMentoring Abilities

Tools & Technologies

CaaSCloud EnvironmentsAWSLogging ToolsObservability Tools

Certifications & Qualifications

BACEN CertificationOpen Finance CertificationOpenID Certification

Industry Keywords

Credit EcosystemFinancial SystemsDigital AccountsPaymentsWhite-Label Integrations

Tech Stack

Tools & technologies

AWSJavaKafkaMongoDBPostgresRabbitMQSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Serve as the technical authority for Java back-end development and make decisions on architecture, best practices, and coding standards
Design and evolve the architecture of the credit platform (CaaS), from origination through portfolio management
Define technical solutions in partnership with product, security, and architecture teams
Lead code reviews, deployments, and architecture decisions focused on scalability
Ensure quality, performance, and resilience through testing, logging, and observability
Code alongside the team day to day, unblocking deliveries and resolving impediments
Provide technical guidance to the team and mentor software developers
Support technical onboarding, squad formation, and the engineering culture
Lead meetings with clients and stakeholders, translating technical issues into business impact
Build and evolve complex financial journeys, including digital accounts, payments, and white-label integrations
Continuously improve development and quality processes
Identify technical risks and propose preventive solutions

Requirements

What you’ll need

Proven experience building a credit platform or system (CaaS) from the ground up, with direct involvement in technical decisions and implementation
Strong experience as a Tech Lead or technical authority on Java back-end teams, while remaining hands-on
Proficiency in Java 11+, Spring Boot, RESTful APIs, and system integrations
Track record with high-volume transaction financial systems, including PIX, SPB, Open Finance, or bank reconciliation
Experience with PostgreSQL and MongoDB
Experience with messaging systems (Kafka or RabbitMQ) and event-driven architectures
Experience with automated testing, including unit, integration, and regression testing
Strong communication skills and conflict-management abilities
Hands-on, collaborative mindset with a strong sense of ownership
Nice to have: experience with the credit ecosystem; information security applied to financial systems; OAuth 2.0 and OpenID Connect; cloud environments, preferably AWS; BACEN, Open Finance, or OpenID certifications; and white-label projects or integrations across multiple brands

Benefits

Comp & perks

Technical ownership in building a credit platform and highly complex financial systems
Work on real-world financial journeys, including credit, PIX, digital accounts, payments, and white-label integrations
Close collaboration with product, architecture, and security teams
Autonomy to make decisions and evolve the platform
A highly experienced team and a culture of continuous learning