Sr SW Engineer, Transactions

Pismo

1d•Remote

About The Position

Founded by experienced entrepreneurs and engineers in 2016, Pismo is a technology company that provides a comprehensive processing platform for banking, card issuing and financial market infrastructure and helps customers innovate and build the next generation of banking and payment solutions. Pismo joined Visa in 2024. Leveraging Visa’s solutions, our core platform, and an expanding suite of capabilities, Pismo addresses the technological challenges that large banks, marketplaces, and fintech companies face in migrating from legacy systems to more advanced technology in the market. Pismo’s cloud-based platform empowers firms to build and launch financial products rapidly, scaling as they grow to have a broader audience while keeping high security and availability standards. Pismo’s 500+ employees are located in more than 10 countries around the world. Sumary The Transactions team is responsible for the core financial transaction domain of the platform, ensuring the creation, processing, integrity, and consistency of all financial movements. The team manages transactions such as purchases, withdrawals, payments, credits, debits, and manual adjustments, ensuring each operation is correctly recorded and associated with an account, following well‑defined business and accounting rules. Acting at a highly critical layer of the system, the team supports high‑volume, mission‑critical transaction processing and serves as a foundation for domains such as Authorizations, Payments, Clearing, and Accounting, enabling a reliable, scalable, and trustworthy financial platform.

Requirements

For this role, you must be based in Brazil
Proficiency in English at B1 level or above (Intermediate)
5+ years of experience as a Software Engineer working in production environments.
Strong experience with Golang and adaptability to other languages and JVM‑related ecosystems (e.g., Java, Groovy).
Advanced Git usage, including resolving complex version control and collaboration scenarios.
Solid experience designing and operating microservices architectures in cloud environments.
Proven ability to debug and troubleshoot issues in distributed systems.
Strong testing expertise, including unit, integration, performance, and end-to-end testing.
Experience designing and documenting APIs using tools such as Swagger/OpenAPI, flow diagrams, and technical documentation to support DEVEX and external consumers.
Proficiency with AWS services such as SQS, SNS, DynamoDB, S3, and EventBridge, building event‑driven and cloud-native solutions.
Experience with Infrastructure as Code and deployment pipelines using tools such as Terraform, ArgoCD, Jenkins, Codefresh, or similar.
Advanced usage of Docker and Kubernetes in production environments.
Strong knowledge of relational databases and data modeling, with familiarity in non‑relational data strategies.
Understanding of CI/CD pipelines, GitOps practices, and observability concepts including monitoring, logging, tracing, and alerting.
Ability to actively contribute to technical decision‑making related to scalability, reliability, performance, and system evolution.

Nice To Haves

Experience working with critical or mission‑critical systems.
Experience in the Financial Industry or with Payments / Authorization Systems.
Familiarity with observability tools and practices for distributed systems.
AWS certifications.
Experience using AI‑assisted development tools (e.g., Copilot, GPT, Claude) to improve development efficiency and quality.
3 or more years of work experience with a Bachelor’s Degree or more than 2 years of work experience with an Advanced Degree (e.g., Master’s, MBA).

Responsibilities

Develop and maintain scalable, reliable, and secure services primarily using Golang, with exposure to JVM‑based technologies when needed, deployed on AWS.
Own the delivery of clean, efficient, testable, and well‑documented code aligned with the squad’s technical strategy and business goals.
Actively participate in all stages of the software development lifecycle, including technical planning, system design, implementation, testing, deployment, and production support.
Design and implement scalable microservices architectures, evaluating trade‑offs related to performance, reliability, and maintainability.
Write and maintain robust automated tests (unit, integration, performance, and end-to-end) to ensure system quality and resilience.
Provision, evolve, and maintain cloud infrastructure using Terraform, following Infrastructure as Code best practices.
Monitor application health and performance using logs, metrics, alerts, and tracing, proactively identifying and resolving issues in distributed systems.
Participate in code reviews, providing thoughtful feedback focused on code quality, architecture, and cross‑domain impact.
Collaborate closely with product managers and cross-functional partners to translate business requirements into effective technical solutions.
Contribute to architectural and technical discussions, supporting continuous improvement, scalability, and long-term platform evolution.
Ensure system stability and reliability, supporting incident response and operational excellence practices.
Stay up to date with emerging technologies and best practices, contributing insights to squad‑level and collective‑level discussions.
Be recognized for delivering high‑quality, impactful technical solutions within the team.