Senior Platform Engineer

About the role

Ajua is building an integrated customer experience platform for businesses across Africa. As a Senior Platform Engineer you will lead the design and implementation of core data‑driven services that power real‑time insights for our clients. You will work closely with engineering leadership and cross‑functional teams to deliver scalable, reliable solutions.

Key responsibilities

• Maintain platform uptime, performance, stability and scalability.
• Design, guide and mentor system architecture and design.
• Develop and scale a world‑class public API.
• Collaborate with data scientists, DBAs, operations and machine‑learning teams to build data pipelines and services.
• Monitor production systems, perform on‑call duties and ensure service reliability.

Required profile

• Bachelor’s degree in Computer Science or related field.
• 8+ years of software engineering experience.
• Strong foundation in data structures, algorithms and distributed systems.
• Expertise in Java and deep knowledge of JVM internals, GC and performance tuning.
• Experience with Spring Framework, Spring Boot and Spring Cloud.

Required skills

• Java (JVM language)
• Spring Framework, Spring Boot, Spring Cloud
• Linux operating system
• Docker and Kubernetes
• AWS cloud platform
• Hadoop, Kafka, Spark
• Relational and non‑relational databases
• Unit and integration testing frameworks

What we offer

• Competitive salary and benefits.
• Potential travel within East Africa.
• Dynamic growth‑stage startup environment.