Senior
Blockchain Engineer
Solidity
Our Scrums.com story
At Scrums.com (formerly SovTech), we believe the future of software lies in the talent, innovation, and creativity found on the African continent. For over a decade, we have been pioneering world-class software development for a global audience. We are the leading custom software development company from Africa that, like any great tech company, was founded in a garage. Scrums.com has now grown to more than 350 of the best AI-powered software engineering experts, building world-class platforms for growing businesses across four cities on three continents.
Looking ahead, we remain committed to growing Africa's tech ecosystems. Africa is home to the world's youngest population, with over 50% of Africans under the age of 25. Recent estimates indicate there are over 700,000 professional software developers across Africa today. That number is projected to double by 2025. We believe in the future of African tech talent and the impact it will have on scaling global companies.
Accelerating business growth with expert tech talent
Trusted by 400+ companies, Scrums.com helps businesses scale with our cloud-based engineering subscription platform, offering consistent, cost-effective AI-powered experts, teams, and reliable developer analytics.
Our Culture
Our culture is underpinned by 8 core values.
Earth’s leading software company from Africa- that's where we're going.
Why Join our Team?
Be part of a dynamic, people-first team that’s showcasing and advancing Africa’s tech landscape on the global scale. At Scrums.com, we celebrate your individuality, empower your decision-making, and create meaningful experiences. Together, we’re driving innovation and building exceptional teams 🚀 Take a look at some of the highlights:
Embrace Our African Talent Footprint, Flexibility, and Autonomy 🌍
At Scrums.com, we champion an empowered workplace where you shape the culture, influence decisions on tech stacks, and take charge of user testing—all while working from wherever you thrive best across our interconnected Guilds.
Our distributed teams span South Africa, Nigeria, Kenya, Zimbabwe, and other parts of the continent, showcasing the diversity and brilliance of African talent.
The Scrums.com Vibes 💙
Annual Foos-Fest ⚽️ : Showcase your skills at our legendary Foosball Festival and take home quirky, sought-after awards.
AI-Powered Hackathons 💻 : Collaborate with your team to create innovative, market-ready products in just 24 hours—all while enjoying live music and family-friendly fun.
Year-End Celebrations 🏞️ : Reflect and connect at our unforgettable year-end events, a decade-old tradition we continue to cherish.
Popcorn Fridays, Dev Chats, and Braais🍿 : Bond with colleagues over insightful discussions and sizzling good vibes.
Fluid Clubs🥾 : Join like-minded peers in activities like hiking, running, and more to foster shared interests beyond work.
Weekly All-Hands 🙌 : Stay inspired and in the loop with our weekly All-Hands sessions that bring us together as one team.
Explore Week 🐘 : Our annual tradition encourages you to work from anywhere around the globe for one exciting week—freedom meets inspiration!
Scrums.com Rewards & Recognition 🎉
Stacos (our company currency) : Reward and recognise your peers with Stacos and exchange them for cool vouchers to celebrate accomplishments big and small.
Commission Incentives : Unlock attractive rewards for successful business development leads and employee referrals.
Continued Career Growth & Support 🔑
Internal AI Platforms : We empower our teams with access to both closed and open source LLM’s that make work easier and empower your professional growth. We love AI!
High-Performance Culture : Stay aligned and on track with OKRs (Objectives and Key Results) and structured annual reviews.
Personalized Mentorship : Receive dedicated guidance from leadership and the Talent SuccessTeam through one-on-one sessions and quarterly check-ins tailored to your career aspirations.
Our teams are powered by AI—Transforming How We Work 🤖
Our teams embrace cutting-edge AI platforms, agents and tools, creating smarter workflows and accelerating career development with AI.
OpenAI, Anthropic, Llama - we use them all so choose what suits you best!
You don’t need your own licenses - we cover the costs and have our own internal AI platforms that gives you access to them all in a secure environment.
Outstanding Employee Benefits* ➕
Discovery Medical Aid : Prioritizing your health with the best care.
Half-Day Birthday Leave : Celebrate your special day with an afternoon off!
Family responsibility & Parental Benefits : Providing full support for a meaningful work-life balance.
*Please note: Benefits may vary depending on employment type
Join us and be part of a dynamic, supportive team that’s making waves across Africa.
Project Specific Details
Accountable for the planning, design, and engineering of enterprise-level infrastructure and platforms. Infrastructure includes hardware, operation systems, database management systems, network and security.
Project
Vaxowave
Location
South Africa
Contract Type
Independent Contractor Agreement
Engagement Length
12 Months
Years of Experience Required
5+ years
Qualifications
Bachelor's Degree in Computer Science or equivalent
Certifications
Advantageous
Work Model
Fully Remote
Core Tech Stack
.NET
Solidity
Rust
Truffle
React.js
Cloud Services (AWS or Azure)
What will you be doing?
Design, develop, and deploy smart contracts on blockchain platforms such as Ethereum, Binance Smart Chain, or others as required.
Write secure and efficient code for smart contract functionality, ensuring it meets project requirements.
Collaborate with cross-functional teams to integrate
blockchain solutions into existing systems.
Perform testing, debugging, and optimization of smart contracts and blockchain integrations.
Develop and maintain backend services using .NET and
other relevant technologies to support blockchain-based applications.
Stay up to date with advancements in blockchain
technologies, smart contract standards, and security best practices.
Document development processes, APIs, and technical
specifications for team and client reference.
Requirements
Proven experience as a Blockchain Developer, with a focus on smart contract development and deployment.
Proficiency in programming languages such as Solidity,
Rust, or other blockchain-specific languages.
Strong understanding of blockchain concepts, including
consensus mechanisms, token standards (ERC-20, ERC-
721, etc.), and decentralized finance (DeFi).
Familiarity with blockchain development frameworks
and tools like Truffle, Hardhat, or Ganache.
Experience with .NET Framework/Core for backend
development is highly advantageous.
Hands-on experience with version control systems like
Git.
Understanding of cryptography, blockchain security, and
best practices for protecting smart contracts against
vulnerabilities.
Strong problem-solving skills and the ability to work in
an agile development environment.
Preferred Qualifications
Experience with front-end frameworks such as React,
Angular, or Vue.js for App development.
Knowledge of cloud services (e.g., Azure, AWS) and
blockchain-as-a-service platforms.
Exposure to tools like Docker and containerized
application development.
Understanding of regulatory implications of blockchain
implementations and smart contracts.
Talent Acquisition Process
Application Stage: Share your profile with us 📃
Share your info with us and our culture team will do a preliminary assessment on YOU. If we think it’s a good match, we’ll set up a technical & culture screening.
Technical & Culture Screening: Get to know each other 🗣️
Depending on what you do and what you send us, we’ll look for ways to showcase your skills internally to the teams looking to hire you.
Technical Assessment: Prove your abilities 💡
You will be assessed according to the role applying for.
Client interview: Technical interview to understand your abilities 💻
A technical interview designed to assess your skills and capabilities. You'll meet with the client to discuss the project and determine if there is alignment between your expertise and the project requirements.
Meet our Hiring Managers: We love getting to know people! 💙
Online, in person, sometimes people even join us for drinks on Friday. Either way, we want to meet you and understand you better.
Connect with us!
Youtube
Proficiency in programming languages such as Solidity, Rust, or other blockchain-specific languages.