Senior Java Developer

About Speechify Speechify aims to remove barriers to reading and learning. Over 50 million people use our text-to-speech products to turn content like PDFs and websites into audio, making information more accessible and easier to understand. Our products cover iOS, Android, Mac, Chrome Extension, and Web App platforms. Google named us Chrome Extension of the Year, and Apple recognized our work with the 2025 Design Award for Inclusivity. Our team includes nearly 200 distributed professionals worldwide. Many come from leading tech companies such as Amazon, Microsoft, and Google, as well as top universities including Stanford. We work remotely, collaborating across time zones without office boundaries. Role Overview: Senior Software Engineer – Windows/Desktop Applications Location: Nairobi, Kenya This role focuses on building and shaping native Windows desktop applications for Speechify. The work involves both hands-on engineering and collaboration with cross-functional partners to deliver reliable, accessible, and high-performing software. What You Will Do Design, architect, and develop native Windows desktop apps using Windows App SDK, WinUI, C#, XAML, and C++ as needed. Set and maintain standards for Windows desktop development, including code structure, performance, memory management, responsive user interfaces, and compatibility across Windows 10 and 11. Drive accessibility by integrating and validating support for accessibility APIs, ensuring users with disabilities have a seamless experience. Collaborate with product designers, UX researchers, QA, and other stakeholders on feature planning and long-term strategy for the Windows platform. Manage the full lifecycle of features, from initial concept through release and ongoing maintenance, with a focus on quality and reliability. Troubleshoot complex bugs and performance issues, and recommend architectural or design improvements.

About Speechify Speechify helps people listen to articles, documents, and books wherever they are. The platform lets users control how they absorb information, with tools built to support learning and accessibility. Like streaming services changed audio entertainment, Speechify is shaping the way people access audio information. The company continues to grow quickly and is recognized as a leader in its field. Role Overview: Senior Software Engineer - Core Experiences This position is based in Nairobi, Kenya. The Senior Software Engineer will join the Core Experiences Team and focus on building and maintaining the core services and SDKs that power Speechify’s product across platforms. The role sits at the intersection of product development and infrastructure, with a focus on efficient APIs and user-friendly systems. What You Will Do Work with teams across functions to define project scopes, improve processes for faster customer feedback, and deliver solutions through the cross-platform SDK. Improve existing features by creating efficient abstractions and optimizing algorithms for faster load times and better data parsing. Build cloud functions, lightweight backend services, and jobs using Kotlin. What We’re Looking For Strong systems thinker who values end-to-end design and simplicity. Works quickly and creatively, with good judgment about what to prioritize for immediate release. Self-driven and focused, able to operate in a growing startup environment. Collaborates well with designers, marketers, and product managers to achieve strong results.

Jobgether is seeking a Senior DevOps Software Engineer with strong experience in Azure to help strengthen and maintain our cloud infrastructure. This position is based in Kenya and focuses on both development and operational aspects of our platform. Role overview This role centers on improving and supporting our Azure cloud environment. The Senior DevOps Software Engineer will work to develop, optimize, and maintain application deployment processes. Ensuring the reliability and performance of our systems is a key priority. What you will do Develop and maintain deployment pipelines for our applications on Azure Monitor and enhance system availability and performance Collaborate with the team to support ongoing infrastructure improvements Requirements Extensive experience with Azure cloud services Background in both software engineering and DevOps practices Strong problem-solving skills and attention to system reliability

Cross Border Talents is seeking a Principal Java Engineer to join our client's team in Portugal. Are you a skilled problem-solver with a solid foundation in software development? Do you aspire to be part of a forward-thinking team that leverages technology to drive positive change?If so, this opportunity could be the perfect fit for you!Our client, a rapidly expanding non-profit social enterprise, operates in the Netherlands, Portugal, South Africa, India, Kenya, and Ethiopia. They specialize in creating digital platforms designed to inspire users—especially young women and adolescent girls—to make beneficial lifestyle choices. By collaborating with local communities, they implement strategies such as reminders, discounts, and reward points to motivate users to access and utilize health products and services.All of their offices are modern, open environments filled with passionate, international colleagues. Whether you're working from our bustling Nairobi office, the rapidly growing South Africa branch, or remotely, our team is youthful, and our culture is vibrant and dynamic. We pride ourselves on a fast-paced, informal, and friendly work atmosphere.Your Role:As the Principal Engineer, you will be responsible for developing and maintaining the software that powers our systems. You will provide guidance on software implementation and delivery while ensuring adherence to technical principles and standards across teams.Your key responsibilities will include:Influencing and implementing software engineering principles in the design, development, maintenance, testing, and evaluation of our software.Collaborating closely with architects and engineering teams to enhance and expand features on our software platform.Utilizing your coding expertise to mentor and coach fellow engineers on complex challenges.

Role overview Speechify is looking for an iOS Core Product Software Engineer in Nairobi, Kenya. This role centers on developing and enhancing iOS applications that support Speechify’s product experience. What you will do Collaborate with fellow engineers to design and build new features for iOS apps Work on improving app performance and reliability over time Influence the user experience by making careful technical choices Location This position is based in Nairobi, Kenya.

Ajua is a pioneering growth-stage startup backed by Silicon Valley and African venture capital, dedicated to revolutionizing customer experiences across the continent. We are proud to be Africa’s first Integrated Customer Experience company, empowering businesses to grow while providing consumers with choices.Are you excited about tackling the continent's most significant challenges through technology? Join us as a Senior Platform Engineer! We seek a passionate individual who is dedicated to crafting innovative software solutions that drive progress across Africa.In this role, you will report directly to the Head of Engineering and be instrumental in developing exceptional software solutions to enhance our real-time data platform.

Speechify builds technology that turns written content into audio, helping over 50 million users learn and access information in new ways. Our text-to-speech tools work with PDFs, books, Google Docs, news articles, and websites, making reading more accessible and efficient. Our suite of products spans iOS, Android, Mac, and Chrome. Speechify has earned recognition from Google as Chrome Extension of the Year and received Apple’s 2025 Design Award for Inclusivity. The team at Speechify is fully distributed, with nearly 200 professionals worldwide. Members include frontend and backend engineers, AI research scientists, and leaders from companies such as Amazon, Microsoft, and Google, plus alumni from Stanford and startups like Stripe and Vercel. There is no central office; everyone works remotely. Role Overview The Data team within Speechify’s AI division is seeking a Software Engineer focused on Data Infrastructure & Acquisition. This position centers on managing and improving the systems that collect and prepare data for model training. The team’s mission is to assemble large-scale, high-quality datasets efficiently and cost-effectively, combining infrastructure, engineering, and research expertise. What You Will Do Find and secure new sources of audio data, then integrate them into the data ingestion pipeline. Maintain and improve the cloud infrastructure for the ingestion pipeline, which runs on Google Cloud Platform and uses Terraform for management. Partner with Scientists to optimize cost, throughput, and data quality, enabling richer datasets at scale for next-generation models. Work with the AI team and company leadership to shape the dataset roadmap for both consumer and enterprise product development. Location This role is based in Nairobi, Kenya, as part of Speechify’s distributed team.

Join Ajua as a Senior Product Engineer and play a pivotal role in creating exceptional SaaS products that empower businesses across Africa and beyond. You will be instrumental in enhancing various components of the Ajua product suite, ensuring they significantly impact our clients' success.Key Responsibilities:Direct the development of Ajua’s product suite towards a comprehensive Integrated Customer Experience Platform, leading MVP launches and subsequent enhancements.Guide a dynamic team of engineers and designers through agile methodologies, fostering collaboration and innovation.Ensure the Ajua platform remains stable, reliable, and user-friendly while continually optimizing performance.Design and mentor in product architecture and design, challenging the status quo for excellence.Conduct qualitative and quantitative research to identify customer challenges, developing solutions that are prototyped, iterated, and launched effectively.Create intuitive, feature-rich customer experiences that exceed Ajua clients' expectations.Take ownership of product features from inception through to launch and user engagement.Manage your workload efficiently within tight deadlines to maximize impact.Collaborate with Data Scientists to introduce valuable features that enhance our offering.Partner with Operations to streamline solutions and boost service reliability.Thoroughly analyze requirements and devise solutions that address genuine customer pain points.Conduct rigorous testing and unit testing to deliver high-quality outcomes.Continuously enhance your technical skills and knowledge while fostering team growth.Document development processes and outcomes meticulously.

About ShareAt Share, we are revolutionizing the Internet Service Provider landscape in Africa by creating a cutting-edge, fully automated software-defined network. Our innovative approach integrates fiber, wireless technologies, and intelligent routing into a cohesive ecosystem that empowers ISPs to thrive.About the RoleWe are in search of a Lead Systems Engineer to take charge of the compute, storage, and platform infrastructure that powers our network. You will be instrumental in developing systems that facilitate automated provisioning, AI-enhanced network operations, and real-time telemetry across various markets. This role offers the opportunity to work on greenfield projects, where you will make critical decisions regarding database management, service deployment, and intelligent automation instrumentation. If you are passionate about leveraging AI for network optimization and eager to construct adaptive infrastructure, this position is tailored for you.Key ResponsibilitiesPlatform InfrastructureDesign and implement virtualization platforms (Proxmox, KVM) across distributed Points of Presence (PoPs).Oversee Kubernetes clusters for platform services and microservices deployment.Architect scalable storage systems (Ceph, ZFS, TrueNAS) for network telemetry and operational data.Develop and maintain AAA infrastructure (FreeRADIUS with Percona MySQL cluster) handling thousands of concurrent users.Implement essential services: DNS, NTP, syslog, DHCP, and IPAM.Database & Data SystemsDeploy and fine-tune time-series databases (TimescaleDB, InfluxDB) for scalable network metrics.Design data pipelines that support AI/ML models for network automation.Establish backup, replication, and disaster recovery plans.Create unified data architectures connecting physical infrastructure (fiber, devices, PoPs) with logical network states (IP allocations, routing, VLANs) and operational telemetry into usable systems.Develop data pipelines that link network events to billing and SLA compensation processes.AI-Driven Network OperationsConstruct the telemetry and observability stack that empowers intelligent network operations, enabling proactive management and optimization.

About GiveDirectlyAt GiveDirectly (GD), we are on a mission to revolutionize international philanthropy by delivering cash grants straight to those in extreme poverty. The Brookings Institution estimates that a staggering $70 billion in cash transfers is necessary to eradicate the poverty gap, while the aid sector currently spends $135 billion annually on often ineffective interventions. We seek to redefine foreign aid by establishing cash transfers as the gold standard, much like index funds have done for the finance sector, to accelerate the end of extreme poverty.Since our inception in 2011, GD has successfully raised over $1 billion and has provided cash assistance to over 1.5 million individuals across 15 countries. We are proud to support extensive experimental research that demonstrates the significant positive impact of our programs on recipients. Recognized as one of the most innovative nonprofit organizations by Fast Company, GD has also been featured in prominent publications including the New York Times Magazine, This American Life, Foreign Affairs, and The Economist.Our organizational culture is marked by transparency, analytical rigor, agility, and a flat hierarchy. With a diverse global team of approximately 150 members, including around 650 country operations personnel from 21 nations and speaking 69 languages, we bring together a unique blend of expertise—from software engineers and seasoned humanitarian professionals to former management consultants and public servants, all dedicated to making a difference.Our values are at the heart of our operations, reflecting our commitment to prioritizing the needs of those we serve. We foster a dynamic, ambitious, and high-performing environment. If our values resonate with you, we encourage you to consider joining our team.We strive to create an inclusive workspace where every team member can flourish, achieve success, and pursue personal and professional growth. We promote flexibility, prioritize well-being, and infuse fun into our work.

We invite you to submit an open application to join our dynamic team at Africa Risk Institute. In your cover letter, please articulate the type of position you are seeking, including your career aspirations and specific interests.

Join our mission-driven team at Amref Health Africa! We are perpetually seeking passionate and skilled individuals eager to contribute to transforming healthcare across Africa. By submitting a General Interest Application, you will be added to our talent pool and considered for future job opportunities.Why Join Our Talent Pool?Future Opportunities: Be first in line for suitable positions as they arise.Promote Health Equity: Engage with a dedicated organization striving to enhance healthcare and empower communities.Diverse Work Culture: Work alongside professionals from various backgrounds, each contributing to significant health advancements.Career Development: Take advantage of mentorship and career growth through pioneering public health initiatives.Please Note: This is not a current job opening but an opportunity to be considered for future roles.

Engage with our RPA tools to enhance and maintain automation workflows.Receive hands-on training from our development team through online sessions and practical experience.Contribute to dynamic web projects utilizing HTML, JavaScript, React, and platforms such as Firebase or Supabase.Assist in the design, development, and upkeep of web-based applications.Participate in team meetings and code reviews, gaining invaluable exposure to collaborative development processes.Troubleshoot technical issues, resolve bugs, and support our production environments to ensure optimal stability.Help document workflows, project updates, and development processes.Participate in process analysis, system design, testing, and deployment preparations.This role will enhance your technical skills while immersing you in exciting, impactful projects.

Are you a skilled problem-solver with extensive experience in software development, particularly in Front End Development? If you’re eager to join a dynamic team that leverages technology to drive positive change, this opportunity may be your perfect fit.Our client is a rapidly expanding non-profit social enterprise with a presence in the Netherlands, Portugal, South Africa, India, Kenya, and Ethiopia. They specialize in creating digital platforms that inspire users, especially young women and adolescent girls, to make empowered health choices. By collaborating closely with local communities, they utilize strategic nudges like reminders, discounts, and reward points to motivate users to access essential health products and services.The work environment is vibrant, with open spaces filled with enthusiastic international colleagues. Whether you are based in our main office in Nairobi, the burgeoning office in South Africa, or working remotely, you will find a youthful, global, and dynamic culture. Our atmosphere is fast-paced, informal, and welcoming.As the Frontend Developer Team Lead, your role will encompass both managerial responsibilities and hands-on software development to ensure our platform's success.You will be tasked with coordinating the frontend development team's projects and actively collaborating on cross-team initiatives.Furthermore, you will oversee the maintenance and enhancement of our software platform, ensuring that it remains secure and functional while incorporating new features. Your expertise in software engineering principles will guide the design, development, maintenance, testing, and evaluation processes.

Join Our Team at Scrums.com!At Scrums.com, we harness the immense potential of Africa's software talent. For over ten years, we have been at the forefront of delivering exceptional software solutions to a diverse global clientele. From our humble beginnings in a garage, we have evolved into a powerhouse of over 350 AI-driven software engineering professionals, working across four cities on three continents to create top-tier platforms that empower businesses.As we look to the future, we are dedicated to nurturing Africa's burgeoning tech landscape. With a youthful population where more than 50% are under 25, and a growing number of professional software developers projected to reach 1.4 million by 2025, we are excited about the role African tech talent will play in driving global innovation.Join Us in Accelerating Business GrowthWith the trust of over 400 companies, Scrums.com is transforming business scalability through our cloud-based engineering subscription platform, providing consistent, cost-effective access to AI-powered experts, dedicated teams, and insightful developer analytics.Our Values are the Cornerstone of Our CultureWe aspire to become the leading software company globally, originating from Africa.

Join Our Team as an Intermediate Quality Assurance Analyst/EngineerAt Scrums.com, we are dedicated to harnessing Africa's immense tech potential. With over a decade of experience in pioneering top-tier software development, we are recognized as Africa's leading custom software development firm. Our journey began in a garage, and we have since expanded to a team of over 350 exceptional AI-driven software engineers, delivering remarkable platforms for businesses across four cities and three continents.As we look to the future, we remain steadfast in our commitment to nurturing Africa's technological landscape. With the continent's youthful population, where over 50% are under 25, and an ever-growing number of software developers, we are excited to be at the forefront of this evolution, scaling global companies through local talent.At Scrums.com, we empower over 400 businesses to thrive with our cloud-based engineering subscription platform, which provides consistent, cost-effective access to AI-powered experts, teams, and valuable developer analytics.Our vibrant company culture is anchored by our eight core values, driving us towards our vision of becoming the world's leading software company from Africa.

We are seeking a skilled Platform Engineer to join our dynamic team at Ajua. The ideal candidate will possess the following abilities:Ensure the continuous uptime, performance, stability, and scalability of Ajua’s platform.Collaborate with peers to design, mentor, and refine system architecture and design.Build, maintain, and scale a top-tier public API.Create robust and extensible solutions based on feature requests.Hands-on experience with data processing technologies such as Kafka, Hadoop, and Spark.Work alongside Data Scientists to craft valuable, feature-rich applications.Collaborate with Database Administrators to develop ETL processes and Data Warehouse systems.Partner with Operations to automate processes and enhance service reliability.Familiarity with Machine Learning applications and large-scale data repositories for business intelligence; experience in App development is a plus.Monitor all production systems related to the platform closely.Be available for periodic on-call duties.Thoroughly analyze requirements and propose solutions that effectively address customer pain points.Conduct testing and unit testing to ensure the delivery of high-quality work.Continuously acquire technical skills and knowledge, supporting team development.Maintain comprehensive documentation of development work completed.

Role overview The Senior Research Executive at NielsenIQ in Nairobi leads research projects that support clients in making informed business decisions. This position combines direct research responsibilities with teamwork across various departments. What you will do Develop research methodologies that address specific client objectives Examine both quantitative and qualitative data sets Share research results and actionable recommendations with stakeholders Collaborate with colleagues from different functions to ensure research is accurate and meets quality standards

At Ajua, exceptional customer experience is at the heart of our mission, and we are seeking a dedicated Customer Success Engineer to deliver a top-tier experience across all our products.The ideal candidate will provide both onsite and remote engineering support, managing the entire lifecycle of incidents and problems to enhance customer satisfaction with Ajua’s offerings. This role demands close collaboration with various teams across all levels of technical support and engineering.Key Responsibilities:Act as a level-two support engineer for production services deployed at customer locations, along with centrally managed services.Implement and maintain monitoring systems at client premises, coordinating with service desk personnel to ensure optimal service uptime.Compile and present service reports, including insights and implementation plans for service improvement.Lead service improvement initiatives that involve customer engagement.Gather and document requirements during the project discovery phase to ensure a smooth delivery process.Convert gathered requirements into comprehensive technical design documents, including Product Definition, High-Level Design, and Low-Level Design documents.Draft technical proposals for various projects.Support sales calls where technical aspects of projects require clear explanations to customers.Deliver on the various technical facets of the Ajua Delivery Model.Foster and maintain strong technical relationships with customers' engineering and business management teams.Assist in reporting requirements as they arise with customers.Develop and engineer support tools to enhance Ajua’s products and services.