Full Stack Developer (Java+React)

Prediktive; Los Angeles (CA); Remote; USD 120,000 - 160,000; Full time

Benefits offered by this job

Remote work from LatAm

Job summary

Prediktive seeks a Software Engineer with strong Java and AWS skills to work remotely from Latin America on a long-term project for a fintech client based in Los Angeles. You will contribute to building a secure, scalable platform for financial advisors and clients, focusing on backend systems and API design.

The role requires deep experience in Spring Boot, authentication/authorization, and data security, with a track record of shipping reliable production systems and improving observability.

Qualifications

• 5+ years of full-stack engineering experience with strong backend focus.
• Experience with authentication/authorization (OAuth 2.0/OIDC, Spring Security, RBAC).
• Solid AWS experience (IAM, KMS/Secrets Manager, RDS/Aurora) and IaC exposure.

Responsibilities

• Design, implement, and roll out security and reliability improvements.
• Integrate platform security capabilities into Java/Spring Boot services.
• Harden APIs with authorization, input validation, rate limiting, and audit logging.
• Diagnose and optimize database performance and data migrations.
• Improve observability and remediate production incidents with durable fixes.
• Collaborate with Security, Platform, and Product teams to deliver high-quality remediation.

Skills

Java

Spring Boot

AWS

OAuth 2.0

PostgreSQL

API design

Observability

Security

TypeScript

React

GraphQL

Education

Bachelor's degree in Computer Science or related

Tools

Terraform

AWS CDK

Postgres

Job description

We are looking for a Software Engineer, with solid experience in Java and AWS, based in Latin America to work on a long-term project for one of our clients, a hyper-growth fintech company based in Los Angeles, California.Our client´s mission is to make financial advice better and more accessible for everyone. They are building a revolutionary platform for financial advisors and their clients to remove the friction from investing and reduce the barrier to entry into wealth creation and management.

Responsibilities

• Independently take defined security and reliability problems through design, implementation, and production rollout.
• Integrate platform security capabilities into existing Java and Spring Boot services, such as encrypting PII fields with AWS KMS, applying Postgres row-level security, and adopting centralized authorization, including safe, zero-downtime backfill of existing data.
• Harden APIs and services with consistent authorization at every boundary, input validation, rate limiting, idempotency, audit logging, and least-privilege IAM.
• Diagnose and fix database performance issues, including query and index optimization, connection management, and key rotation for encrypted data.
• Improve observability (metrics, tracing, structured logging) and remediate production incidents, shipping durable fixes rather than workarounds.
• Work closely with Security, Platform, and product engineers to deliver remediation work to a high standard of quality.

Requirements

• Advanced Level of English.
• 5+ years of full-stack engineering experience with a strong backend focus, building and maintaining production systems in Java and Spring Boot.
• Hands-on experience implementing authentication and authorization (OAuth 2.0/OIDC, Spring Security, RBAC).
• Solid AWS experience, including IAM, KMS or Secrets Manager, and RDS/Aurora; exposure to infrastructure as code (Terraform or CDK).
• Advanced SQL and Postgres skills, including query optimization and safe schema and data migrations.
• Strong API design and service-integration skills across distributed systems.
• Experience owning production services: monitoring, debugging, and incident remediation.
• A track record of building and hardening systems, rather than primarily performing security reviews, audits, or compliance work.
• Familiarity with TypeScript, React, or GraphQL, as parts of the product require coordinated cross- stack changes.

Bonus Points

• Bachelor’s Degree in Computer Science, Systems Engineering or related fields.
• Experience in fintech, payments, brokerage, or other regulated, security-sensitive environments (e.g., SOC 2, PCI DSS).
• Application-level encryption experience: envelope encryption, tokenization, key rotation, and libraries such as the AWS Encryption SDK or Google Tink.
• Experience with event-driven architectures (Kafka or similar), including protecting sensitive data in asynchronous pipelines.
• Experience with Snowflake, including data access controls such as masking and row access policies.