Position title
Android Developer

The Sr. Mobile Developer will be primarily supporting the existing Android application in addition to maintaining compatibility with our iOS app. Other server-side development tasks might be assigned in the future.

The ideal candidate is a senior full-stack engineer with a prior security-focused financial/payment experience, capable of playing a leading role as we extend the size of the team going forward.

· 4+ years of Java is a must

· 1+ year of Android is a must

· 1+ year of iOS (ObjC or Swift) preferred.

· RxJava, Dagger, gRPC, Protobuf, JOOQ, Spark HTTP, Retrofit, Gradle, GIt – highly desired.

· Deep understanding of PKI and cryptography algorithms is a big plus

Excel SoftSources is a very stable company working in Costa Rica since 2006 and we provide quality staff augmentation for our software developing clients in the US. We work M-F, 40 hours a week, working from home 4 days a week.


Work with the product owner to evolve and solidify the technical and experience design for new features and modules for our product.
Design for extensible and scalable multi-threaded solutions, optimizing for resource utilization, performance, and supportability.
Code, test, and optimize designs across the system, subsystems and micro-services.
Refactor legacy code to simplify the system and create highly supportable / maintainable code.
Work with customer support to troubleshoot and resolve product and platform issues.
Monitor evolving Java Framework, SQL and noSQL database trends and technologies for possible adoption.


6+ years of experience in software engineering building highly scalable systems.
5+ years of experience working with Java development with advanced knowledge of Spring framework.
Extensive experience developing multi-threaded Java based services.
Extensive database experience, including database design, implementation, and optimization with SQL and NoSQL (Cassandra) databases
Solid understanding of data structures and algorithm fundamentals.
Solid understanding of APIs using standards like REST, JSON, or XML.
Experience working across the full technical stack of a SaaS product.
Experience with Linux and Windows Operating Systems and Servers.


Aarón Acuña


Position: Android Developer

Thank you for submitting your application. We will contact you shortly!

Employment Type
Beginning of employment
Duration of employment
Ciber Security
Job Location
San Pedro
Working Hours
8:00 a.m to 4:30 p.m
Date posted
June 3, 2019
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