Software Engineer L3 (Rails)

ENGIE Energy Access (Africa) is seeking a full-stack Software Engineer L3 (Rails) in Nairobi, Kenya. The role involves delivering solar power solutions to emerging markets, participating in software planning, mentoring junior engineers, and ensuring high-quality software development. Candidates should have at least 5 years of software engineering experience, proficiency in Ruby on Rails, and strong communication skills. This position is part of a distributed team across Kampala, Berlin, and Nairobi.
Job Purpose/Mission
We are looking for a full-stack software engineer to join our digital team and help us to deliver affordable solar power to emerging markets. If you are confident in the Rails world and if you want to create real, positive impact with your work, please reach out to us.


This position offers a great opportunity to directly contribute to the success of a mission driven company with social and environmental impact. You will work closely with our stakeholders and users in Africa and beyond.


Our small, self-organized, distributed team (Kampala / Berlin / Nairobi) develops the backbone of our operations, which we also provide to other businesses in the PAYGo sector as Software as a Service – see https://paygee.com .



Responsibilities
 



Participate in the software planning sessions, together with product managers and engineers to discuss delivery time estimates, risks and key practical considerations such as technical debt, feasibility at scale etc.
Own initiative and complete it from start to finish, provide guidance to other engineers and deliver a complete solution subject to all engineering best practices, timeline considerations and potential dependencies in the software with no supervision.
Represent technical team in business conversations in a range of scopes and work closely with stakeholders to deliver solutions which fit the needs of the business and provide fairly accurate effort estimates and risk assessment
Participate in Peer-Review, identify and document technical debt and contribute to delivering high quality software solutions
Participate and strongly contribute to architectural discussion on important areas of software that impact performance and reliability of our software. Identify and communicate risk in approaches or implementation details, technical debt, assumptions, etc.
Contribute to change of processes, adoption of best industry practices and mentor junior engineers and provide technical guidance
Provide support where engineering intervention is required (e.g. due to bugs or performance problems)

 


Knowledge and skills
Experience:
 



5 years of practical experience in software engineering of which at least 2 years in senior or lead role
Programming language proficiency in Ruby and Rails and front-end/JavaScript frameworks
Proven track record of building quality software with TDD
Strong knowledge of software engineering design and architectural patterns
Experience creating and maintaining scalable web applications with high availability, observability and structured logging
API design to scale in Ruby
Good knowledge of object relational mappers and their implementation design patterns
Appreciation for detailed source code documentation and organized code structuring
Software deployment pipelines and best practice (CI/CD)
Excellent knowledge of computer algorithms and solid computer science fundamentals
Excellent written and verbal communication skills in English

Good to have experience

Experience in developing large production grade web applications with python, java or Go
Forward thinking with ability to recognize the impact of technology in business
Strong foundation on distributed systems
Knowledge of container orchestration using Kubernetes
Server backend management experience (Linux, MySQL, Puma, Apache, Nginx, etc.)
Good knowledge on application security
Knowledge of Amazon Web Services (AWS) and its services, such as, but not limited to, EC2, RDS, EBS, S3, Lambda functions

Qualifications:

Bachelors or Masters in a relevant engineering discipline (Computer Engineering, Software Engineering, Computer Science are preferred)

Language(s):



English
French is a plus

Our Technology Stack:

Web framework: Rails 5
Background task: Sidekiq
Front-end: ActiveAdmin, VueJS, Angular
API: Grape, Devise
TDD: RSpec
Search: Thinking Sphinx
Storage: MySQL, Mongo, Cassandra, Redis
Source Control: Gitlab selfhosted for git and CI/CD
Deployment: Capistrano, Ansible
Fresh Ideas Always welcome!

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