Hi there! I’m a backend-focused software engineer with 12+ years of experience designing secure, scalable microservices using Java, Kotlin, Spring Boot, Python, TypeScript, NestJS, React, and Azure-based services. I’ve delivered high-impact backend systems across aviation and travel, payments and fintech, banking, telecom, SaaS, and e-commerce, helping organizations grow revenue and improve performance, reliability, and deployment speed. I’ve also applied AI across three contexts to build cloud-native tools, RAG assistants, and code-review automation, and I love mentoring engineers and shaping architecture to align with business goals. In recent roles, I’ve led architectural decisions, driven CI/CD improvements, and collaborated with cross-functional teams to deliver multi-region, multi-category platforms at scale. I’m passionate about turning complex problems into robust, maintainable systems and continuously improving development practices and developer productivity.

Foster Kojo

Hi there! I’m a backend-focused software engineer with 12+ years of experience designing secure, scalable microservices using Java, Kotlin, Spring Boot, Python, TypeScript, NestJS, React, and Azure-based services. I’ve delivered high-impact backend systems across aviation and travel, payments and fintech, banking, telecom, SaaS, and e-commerce, helping organizations grow revenue and improve performance, reliability, and deployment speed. I’ve also applied AI across three contexts to build cloud-native tools, RAG assistants, and code-review automation, and I love mentoring engineers and shaping architecture to align with business goals. In recent roles, I’ve led architectural decisions, driven CI/CD improvements, and collaborated with cross-functional teams to deliver multi-region, multi-category platforms at scale. I’m passionate about turning complex problems into robust, maintainable systems and continuously improving development practices and developer productivity.

Available to hire

Hi there! I’m a backend-focused software engineer with 12+ years of experience designing secure, scalable microservices using Java, Kotlin, Spring Boot, Python, TypeScript, NestJS, React, and Azure-based services. I’ve delivered high-impact backend systems across aviation and travel, payments and fintech, banking, telecom, SaaS, and e-commerce, helping organizations grow revenue and improve performance, reliability, and deployment speed. I’ve also applied AI across three contexts to build cloud-native tools, RAG assistants, and code-review automation, and I love mentoring engineers and shaping architecture to align with business goals.

In recent roles, I’ve led architectural decisions, driven CI/CD improvements, and collaborated with cross-functional teams to deliver multi-region, multi-category platforms at scale. I’m passionate about turning complex problems into robust, maintainable systems and continuously improving development practices and developer productivity.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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Work Experience

Senior Backend Engineer at Euro Wings Digital
September 1, 2025 - Present
Designed and delivered modern, high-availability API interfaces powering flight-interruption features; improved customer recovery and retention workflows; enhanced travel experiences, contributing to a measurable uplift in customer satisfaction.
Senior Backend Engineer at Deutsche Telekom (Remote - Germany)
April 1, 2024 - May 1, 2025
Designed scalable APIs for a Fiber Glass Landlord Property Management platform using Spring Boot (Java/Kotlin), Kafka, Docker, EKS, and PostgreSQL, reducing release cycles by 25%.
Senior Software Engineer at Deutsche Telekom (Remote - Germany)
April 1, 2024 - May 1, 2025
Led architecture reviews and CI/CD improvements; implemented API security, and contributed to backend platform evolution using cloud services, IaC (Terraform), and multi-region deployment patterns.
Senior Software Engineer at Yellowcard Financial Inc. (Remote - US)
January 1, 2023 - March 1, 2024
Developed fintech microservices in Java/Kotlin, expanding product coverage across 20 African countries; implemented event-driven backend using AWS Lambda, Kinesis, and Kafka; improved processing times and reliability.
Senior Software Engineer at Software Group (Remote - Bulgaria)
June 1, 2020 - January 1, 2023
Led SaaS banking integrations; designed high-availability microservices with Java, Python, NestJS; multi-region service delivery; Temenos CBS integration and external system connections via REST.
Senior Software Engineer at Software Group (Hybrid)
March 1, 2019 - June 1, 2020
Led engineering for EdTech, Health Tech and job-seeking platforms; designed scalable cloud-native solutions; managed data pipelines and multi-tenant deployment strategies.
Software Engineer at Software Group (Remote - Bulgaria)
January 1, 2017 - March 1, 2019
Delivered scalable EdTech, Health Tech, and job-search platforms; used Python, PHP, TypeScript, AWS, and React; accelerated cloud migration and performance improvements.
Software Developer at Jobsghana (jobbinghana.com)
January 1, 2014 - January 1, 2016
Built scalable EdTech and job-search components; contributed to system performance improvements and cloud migration efforts.
Software Engineer at InfoView Data Solutions
January 1, 2016 - January 1, 2017
Developed data-centric backend services; contributed to performance optimizations and cloud-based deployments.

Education

BSc. Computer Science at Coventry University
January 11, 2030 - January 1, 2008

Qualifications

GitHub Copilot Certified
January 1, 2025 - April 1, 2026
HashiCorp Terraform Associate
January 1, 2025 - April 1, 2026
Microsoft Certified - Azure AI & Data Fundamentals
January 1, 2021 - April 1, 2026
AWS Certified Developer - Associate
January 1, 2023 - April 1, 2026
AWS Certified Solutions Architect - Associate
January 1, 2023 - April 1, 2026

Industry Experience

Software & Internet, Telecommunications, Financial Services, Travel & Hospitality, Professional Services

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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