Joseph Kossi A.
Fullstack Developer
Joseph is a highly motivated Fullstack Software Engineer with a Bachelor’s degree in Computer Science & a Postgraduate degree in Software Entrepreneurship.
He has a rich 8-year professional history in building scalable web & mobile cloud applications in the fields of eCommerce, fintech, real estate, logistics, education & construction.
Moreover, he boasts extensive hands-on experience with Ruby on Rails, Ruby, JavaScript, React.js, TypeScript, Node.js, AWS & others. Joseph has also acted in the capacity of a CTO and team leader, hiring and mentoring junior developers, performing code reviews, managing teams, and utilizing Jira in the process. He is well-acquainted with the Scrum methodology and is capable of learning new tools and technologies.
Main expertise
- Ruby 6 years
- Ruby on Rails 6 years
- PostgreSQL 8 years
Other skills
- Node.js 3 years
- Microservices 3 years
- GraphQL 2 years
Selected experience
Employment
Software Engineer
Order.co - New York, US - 10 months
-
Partner engagement as a Senior Consultant at Andela;
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Maintain and extend existing backend services;
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Write production-quality advanced JavaScript (React and Redux);
-
Architect, design and build the recurring payments frontend and backend integration with Stripe;
-
Reviewing design docs and pull requests for relevant services and repositories.
Technologies:
- Technologies:
Ruby
Ruby on Rails
PostgreSQL
React.js
JavaScript
Redux.js
AWS
Algolia Search
Docker
REST API
Git
-
FullStack Software Engineer
Lessonly - Indianapolis, US - 2 years 10 months
-
Partner engagement as a Senior Consultant at Andela;
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Translate non-technical business needs into a clear technical action plan and vice versa, seamlessly;
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Design, build, debug, test and maintain backend services, third party integrations (Namely, Zoom & Salesforce);
-
Improved the search experience for learners on the learn dashboard. I optimise the query and code to help deliver a scalable and fast search experience. I reduced the time taken to search for content from ~10.08s to ~2.08s;
-
Built an integration with Zoom that allows managers automate attendance tracking after a meeting ends;
-
Built the usernames features that allows Lessonly to serve a whole new class of learners without work emails.
Technologies:
- Technologies:
Ruby
Ruby on Rails
PostgreSQL
React.js
JavaScript
Redux.js
Algolia Search
Docker
Sidekiq
Git
-
Senior Consultant
Andela Talent Accelerator - Accra | Lagos | San Francisco | New York - 1 year 11 months
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Work as part of the partner engineering team to help in delivering software projects that meets or exceeds partner expectations;
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Mentor junior engineers on software engineering topics, React & Ruby on Rails;
-
Conduct assessment for junior engineers when transitioning to a higher role to ensure
they possess the right technical and soft skills; -
Conduct interviews for new hires, mostly engineers.
Technologies:
- Technologies:
Ruby
Ruby on Rails
React.js
React Native
-
CTO
BidiiBuild - Accra - 1 year 9 months
-
Managed design and dev teams;
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Architecting our Web Api and Front End App;
-
Develop and deploy predictive models with Azure ML Studio;
-
Restful Web API development;
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Optimizing UI components for maximum performance across a vast array of web-capable devices and browsers;
-
Debugging and testing codes;
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Managed deployment and builds for our web apps;
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Conducting Interviews for new dev hires;
-
Perform code review and analysis.
Technologies:
- Technologies:
Ruby
Ruby on Rails
PostgreSQL
React.js
JavaScript
Redux.js
Next.js
AWS
Algolia Search
Docker
- Microservices
Git
GraphQL
-
Education
Standalone courseSoftware Entrepreneurship
MEST Africa · 2016 - 2017
BSc.Computer Science
All Nations University College · 2011 - 2015
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