Back End Developer responsibilities are:

Design and develop solutions for web services
You have to write code that can be well designed, testable, and efficient using the best software development practices
Collect, improve specifications, requirements based on technical needs
Design, implement, and optimize relational & non-relational databases
Self-organize under scrum methodology to collaborate and deliver features to customers
Can create, manage software documentation.
Responsible for maintaining, expanding, scaling up our applications

Back End Developer requirements are:

Candidate must possess at least a Bachelor’s Degree in Computer Science, Information Technology,Engineering (Computer, Telecommunication), Engineering (Electrical, Electronic, Mechatronic), or Mathematics.
Proficient in OOP & SQL. Functional Programming is a plus
Have experience of using some RDBMS especially MySQL and Graph Database (arangoDB)
Experience working in frameworks such as Golang and Laravel.
Experience on using and maintaining docker, kubernetes is a plus point
Experience with creating API based webapp with proper authentications
Knowledge of version control systems such as Git or BitBucket, branching mechanism, pull request
A commitment to writing understandable, maintainable, and reusable software
Systematic problem diagnosis, creative problem solving skills, strong willingness to grow
Familiar with agile software development and its respective tool
Willing to work at Malang, East Java