# Sr. Fullstack Developer (Javascript/Java) at Coderio

Coderio is hiring a remote Sr. Fullstack Developer (Javascript/Java). Location requirements: Argentina and Uruguay.

Source: https://himalayas.app/companies/coderio-co/jobs/sr-fullstack-developer-javascript-java

## About the job

| Field | Value |
| --- | --- |
| Company | [Coderio](https://himalayas.app/companies/coderio-co) |
| Job type | Contractor |
| Experience level | Senior |
| Location requirements | Argentina and Uruguay |
| Hiring timezones | UTC-3 |
| Posted on | 2026-11-13 |
| Apply before | 2027-01-12 |
| Job categories | [Senior Fullstack Developer](https://himalayas.app/jobs/senior-fullstack-developer), [Software Engineer](https://himalayas.app/jobs/software-engineer), [Full Stack Developer](https://himalayas.app/jobs/full-stack-developer), [Backend Engineer](https://himalayas.app/jobs/backend-engineer), [Front End Developer](https://himalayas.app/jobs/front-end-developer) |
| Skills | [Java](https://himalayas.app/jobs/java), [Spring Technologies](https://himalayas.app/jobs/spring-technologies), [Spring Boot](https://himalayas.app/jobs/spring-boot), [React](https://himalayas.app/jobs/react), [JavaScript](https://himalayas.app/jobs/javascript), [TypeScript](https://himalayas.app/jobs/typescript), [REST APIs](https://himalayas.app/jobs/rest-apis), [MySQL](https://himalayas.app/jobs/mysql), [PostgreSQL](https://himalayas.app/jobs/postgresql), [AWS](https://himalayas.app/jobs/aws), [Docker](https://himalayas.app/jobs/docker), [Kubernetes](https://himalayas.app/jobs/kubernetes), [DynamoDB](https://himalayas.app/jobs/dynamodb), [NodeJS](https://himalayas.app/jobs/nodejs) |

## Job description

```text
Coderio designs and delivers scalable digital solutions for global businesses. With a strong technical foundation and a product mindset, our teams lead complex software projects from architecture to execution. We value autonomy, clear communication, and technical excellence. We work closely with international teams and partners, building technology that makes a difference.

Learn more: http://coderio.com

In this role, you'll lead the end-to-end development of high-impact fintech platforms by designing, coding, and deploying scalable web applications. You'll collaborate with cross-regional teams, design robust microservices, and optimize performance for massive international traffic—all while delivering scalable, high-quality solutions that drive measurable business results.

What to Expect in This Role (Responsibilities)

- Design, code, and deploy high-volume, low-latency web applications, ensuring consistency across backend and frontend logic.

- Design and consume robust REST APIs to integrate securely with acquirers, local banks, and Alternative Payment Methods (APMs).

- Monitor and tune backend and database performance to support massive international financial traffic spikes without service degradation.

- Write clean, maintainable, and highly testable code (Unit/Integration Testing), integrating it seamlessly into automated CI/CD pipelines.

- Collaborate with technical teams to adopt AI tools and coding copilots into the daily development workflow to optimize delivery times.

Requirements

- Advanced English (written and spoken) is a strict must-have requirement for daily remote collaboration with global teams.

- Solid, proven experience using Java (Spring / Spring Boot) as the primary language for the core financial ecosystem.

- Advanced proficiency in React, JavaScript, TypeScript, and modern frameworks.

- Experience with high-performance relational databases such as MySQL or PostgreSQL, including complex query optimization.

- Hands-on experience working with AWS (Amazon Web Services) and container ecosystems (Docker / Kubernetes).

- Strong soft skills: "Own it" mindset (accountability), flexibility to pivot in a dynamic fintech environment, and clear technical communication.

Nice to Have

- Complementary experience with Node.js or Golang.

- Knowledge of NoSQL databases, specifically DynamoDB.

- Background in payments or financial systems.

Benefits

• 100% remote

- Long-term commitment, with autonomy and impact

- Strategic and high-visibility role in a modern engineering culture

- Collaborative international team and strong technical leadership

- Clear path to growth and leadership within Coderio

Why join Coderio?

At Coderio, we value talent regardless of location. We are a remote-first company, passionate about technology, collaborative work, and fair compensation. We offer an inclusive, challenging environment with real opportunities for growth. If you are motivated to build solutions with impact, we are waiting for you.

Apply now.
```

## How to apply

Apply on Himalayas: [Sr. Fullstack Developer (Javascript/Java) at Coderio](https://himalayas.app/companies/coderio-co/jobs/sr-fullstack-developer-javascript-java)

Jobs on Himalayas never require payment from applicants. Never send money to a company.

## About Coderio

Coderio is a premier nearshore software development company that designs and delivers customized technology solutions for global enterprises, including Fortune 500 companies like Visa, McDonald's, and Coca-Cola.

Company profile: [Coderio](https://himalayas.app/companies/coderio-co.md)

All jobs: [13 open remote jobs at Coderio](https://himalayas.app/companies/coderio-co/jobs)