Joel R.
Software Developer
Software Developer I’m a software developer with experience building and maintaining web applications, backend services, and native applications. My experience includes backend and frontend development, working with relational databases, and developing native applications for Linux and Android. I have worked on both greenfield projects and established codebases, including adding new features, maintaining existing functionality, debugging issues, and improving existing implementations. I also have experience working remotely with international teams and collaborating throughout the development process, from understanding requirements and existing code to implementation. Technologies I’ve worked with: C, Go, TypeScript, JavaScript, Node, React, NestJS, Perl, Kotlin, PostgreSQL, MySQL. If you need a developer who can work across different parts of an application or get into an existing codebase and solve a specific problem, feel free to get in touch.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $4.3k
Billed in all: $16,783$17k
$4.3k in the last 6 months
Earnings, last 30 days
Skill rankings: Top 10% in Spring Security
Ranked by MRR among everyone on Upwork with the skill.
- #17Spring Data102 freelancers · 🇦🇷 #1Top 17%🇦🇷#1 of 4
- #26Spring Security248 freelancers · 🇦🇷 #1Top 10%🇦🇷#1 of 4
- #276Spring Boot2,150 freelancers · 🇦🇷 #8Top 13%🇦🇷#8 of 23
- #731Git5,766 freelancers · 🇦🇷 #15Top 13%🇦🇷#15 of 59
- #1,001Java8,313 freelancers · 🇦🇷 #21Top 12%🇦🇷#21 of 91
- #1,289Docker8,761 freelancers · 🇦🇷 #19Top 15%🇦🇷#19 of 73
- #1,841MySQL14,471 freelancers · 🇦🇷 #23Top 13%🇦🇷#23 of 104
- #2,478CSS19,042 freelancers · 🇦🇷 #27Top 13%🇦🇷#27 of 172