• Guide and support development teams on infrastructure, security, and automation best practices.
• Act as a trusted enabler - removing blockers and accelerating delivery through smart tooling and process improvements.
• Contribute to architecture decisions, particularly around cloud-native and serverless workloads.

• Design, build, and maintain robust CI/CD pipelines using TeamCity and related tooling.
• Automate repetitive processes across build, test, and deployment workflows.
• Drive the team's shift toward infrastructure-as-code and self-service automation.

• Manage and optimise cloud infrastructure on AWS, including EC2, S3, RDS, Lambda, and ECS.
• Support the migration of workloads toward containerisation using Docker and ECS.
• Maintain high availability, performance, and cost-efficiency across all environments.
• Own environment provisioning and configuration management for both Linux and Windows workloads.

• Embed security practices into the software delivery lifecycle (DevSecOps).
• Monitor infrastructure for vulnerabilities and ensure adherence to fintech regulatory standards.
• Implement and maintain access controls, secrets management, and audit logging.

• Set up and maintain monitoring, alerting, and observability tooling across production and staging environments.
• Respond to and lead resolution of infrastructure incidents, conducting post-mortems to prevent recurrence.
• Ensure uptime and reliability targets are consistently met.

• Champion the ongoing journey toward serverless architectures (AWS Lambda / Azure Functions).
• Evaluate and recommend tooling improvements that support Ozow's evolving technical roadmap.
• Collaborate with engineering to modernise legacy infrastructure components incrementally.

• Maintain up-to-date documentation on infrastructure, pipelines, and runbooks.
• Drive adoption of automation and AI-assisted tooling to reduce toil and increase team velocity.
• Lead or contribute to the rollout of new systems, platforms, and DevOps tooling changes across the team.

• An IT diploma or degree (or equivalent hands-on experience).
• At least 3 years of relevant work experience in a DevOps, SysOps, or Infrastructure Engineering role.
• Solid experience with CI/CD pipelines - specifically TeamCity (Ozow's tool of choice).
• Strong knowledge of AWS services including EC2, S3, RDS, Lambda, and ECS.
• Hands-on experience with Docker and container orchestration via Kubernetes or ECS.
• Proficiency in both Linux and Windows server environments.
• Experience with scripting and automation (Bash, PowerShell, Python, or similar).
• A strong security mindset with experience implementing DevSecOps practices.
• Experience with infrastructure-as-code tools (Terraform, CloudFormation, or similar).
• Excellent communication skills - you can translate complex infrastructure concepts for non-technical stakeholders.
• Experience in a high-availability, regulated industry (fintech, banking, or similar) is a bonus.

Job summary

As a Senior Full-Stack Engineer, you will work on designing, developing, and maintaining web applications, ensuring they are scalable, secure, and perform well across different environments. You will collaborate closely with product managers and other engineers to create seamless user experiences and ensure the smooth integration of front-end and back-end components.

What you will do

• Collaborate with developers, product managers, and other teams to design and implement scalable, secure, and maintainable web applications that meet customer needs.
• Develop the front-end of the application using React, ensuring an engaging and responsive user interface.
• Work on the Java-based backend to implement business logic, database interaction, and integration with other services.
• Ensure the integration of back-end services with the front-end, enabling seamless data flow and communication between components.
• Implement cloud services (AWS or other cloud platforms) for scalability and performance optimization, ensuring that the infrastructure is reliable and cost-effective.
• Monitor and optimize application performance and system reliability, collaborating across teams to resolve issues.
• Write clean, efficient, and maintainable code following best practices and development standards.
• Troubleshoot and resolve issues in both development and production environments, ensuring minimal downtime and quick resolution of bugs.
• Participate in code reviews to maintain high code quality and ensure consistency across the team.
• Stay up-to-date with the latest industry trends, emerging technologies, and best practices in full-stack development and cloud technologies.
• Contribute to architectural decisions, ensuring ystems are designed for scalability, maintainability, and security.

What you will have

• Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience).
• 5+ years of experience in software development, with strong proficiency in React and Java.
• Experience with modern front-end technologies and best practices (e.g., state management, component libraries, UI/UX design).
• Proficiency in Java backend development, including RESTful APIs, database integration (e.g., SQL, NoSQL), and microservices architecture.
• Familiarity with cloud platforms (AWS preferred) and experience in deploying and managing cloud-based applications.
• Experience with CI/CD pipelines for automated testing and deployment.
• Familiarity with DevOps tools and Infrastructure as Code (e.g Terraform, CloudFormation).
• Strong problem-solving and debugging skills, with the ability to quickly identify and resolve issues in production environments.
• Knowledge of version control using Git, and experience with agile development methodologies.
• Excellent communication and collaboration skills, with the ability to work in a cross-functional team.

Benefits

• Provident Fund
• Medical Aid + Gap Cover
• Employee Assistance Program
• Gym Reimbursement
• Life Insurance
• Disability Insurance

#LI-FP1

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The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its 2025 Design Award winner for Inclusivity.  

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

Overview

We're looking to hire for our Data side of our AI team at Speechify. This role is responsible for all aspects of data collection to support our model training operations. We are able to build high-quality datasets at petabyte-scale and low cost through a tight integration of infrastructure, engineering, and research work. We are looking for a skilled Software Engineer to join us.

What You’ll Do

• Be scrappy to find new sources of audio data and bring it into our ingestion pipeline
• Operate and extend the cloud infrastructure for our ingestion pipeline, currently running on GCP and managed with Terraform.
• Collaborate closely with our Scientists to shift the cost/throughput/quality frontier, delivering richer data at bigger scale and lower cost to power our next-generation models.
• Collaborate with others on the AI Team and Speechify Leadership to craft the AI Team’s dataset roadmap to power Speechify’s next-generation consumer and enterprise products.

An Ideal Candidate Should Have

• BS/MS/PhD in Computer Science or a related field.
• 5+ years of industry experience in software development.
• Proficiency with bash/Python scripting in Linux environments
• Proficiency in Docker and Infrastructure-as-Code concepts and professional experience with at least one major Cloud Provider (we use GCP)
• Experience with web crawlers, large-scale data processing workflows is a plus
• Ability to handle multiple tasks and adapt to changing priorities.
• Strong communication skills, both written and verbal.

What we offer

• A fast-growing environment where you can help shape the company and product.
• An entrepreneurial-minded team that supports risk, intuition, and hustle.
• A hands-off management approach so you can focus and do your best work.
• An opportunity to make a big impact in a transformative industry.
• Competitive salaries, a friendly and laid-back atmosphere, and a commitment to building a great asynchronous culture.
• Opportunity to work on a life-changing product that millions of people use.
• Build products that directly impact and support people with learning differences like dyslexia, ADD, low vision, concussions, autism, and more.
• Work in one of the fastest-growing sectors of tech, the intersection of artificial intelligence and audio.

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace. 

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

Please submit your resume in English.

To learn more about our team and office culture in Cape Town, South Africa visit the following links. 
Careers Page: https://www.knowbe4.com/careers/locations/cape-town
Glassdoor: https://www.glassdoor.com/Location/KnowBe4-Cape-Town-Location-EI_IE969384.0,7_IL.8,17_IC2653748.htm
LinkedIn: https://www.linkedin.com/company/knowbe4/life/southafrica/

We are looking for a Machine Learning Engineer to help scale the industrialization of our ML lifecycle. This is a Builder’s Role - you will be responsible for the high-scale architecture that allows our models to survive production. You’ll be a key contributor to our MLOps ecosystem, moving beyond experimentation to build high-throughput, distributed systems that serve as the backbone of our intelligence products.

Machine Learning Engineers help us extract value from our data. They are involved in all the processes from data collection, cleaning, and preprocessing, to training models and deploying them to production. This position will assess, analyze, and organize data, execute tests, and optimize the learning process to develop high-performance machine learning models.

Responsibilities:

• Develops software using the KnowBe4 Software Development Lifecycle and Agile Methodologies
• Designs, develops, and researches Machine Learning systems
• Transforms data science prototypes by applying appropriate Machine Learning algorithms and tools
• Performs statistical analysis and using results to improve models
• Inference Engineering: Drive the deployment and optimization of both standard predictive models and LLM architectures, balancing trade-offs between low latency, high throughput, and cost-efficiency
• Platform Hardening: Transition research prototypes into resilient, production-ready microservices that can handle massive traffic
• Lifecycle Orchestration: Execute automated pipelines for data and model versioning, validation, and retraining
• Observability: Implement advanced monitoring for model drift, data integrity, and system health to ensure production reliability
• Collaborative Standards: Uphold clean code practices, thorough documentation, and participate in rigorous code reviews across the ML and Engineering teams

Requirements:

• BS or equivalent plus 3 years experience
• MS/Ph.D. or equivalent plus no experience
• Training in secure coding practices (preferred)
• AI/ML and Core: Python (production-grade), PyTorch
• Data and Features: Apache Spark for distributed processing; experience with Feature Stores or automated feature engineering is a plus
• Infrastructure: AWS (SageMaker, Lambda), Docker, and Terraform/IaC for environment reproducibility
• Specialized Tooling: Experience with custom inference optimization (Python-based); orchestration via lean, custom AWS and Python-based solutions using Lambda and MLflow
•  Additional: C# and JavaScript (beneficial)
• Familiarity with secure coding practices

The Reality Check:

While the title says pure ML, the day-to-day is data heavy and is also focused on the AI and ML Platform Engineering around our services. Expect a roughly 90/10 split - the vast majority of your impact will come from hardening data pipelines, refining CI/CD for ML, and building world-class observability, with the remaining portion dedicated to model building, implementation and tuning.

At 2U, we are all in on purpose. We are motivated by our mission – to eliminate the back row in education – and connected by our shared passion to deliver world-class digital education at scale. As the parent company of edX, the world’s leading online learning platform, 2U powers more than 4,000 online higher education offerings – from free courses to full degrees. Together with more than 230 colleges, universities, and corporate partners, we are helping to unlock human potential.

What We’re Looking For:

We are seeking a highly skilled and experienced Data Engineer III to serve as a key individual contributor responsible for architecting, implementing, and maintaining robust Data Technology Systems across the entire Modern Data Stack (Data Integration, Storage, Transformation, and Governance). This role demands deep technical proficiency and architectural foresight, requiring the candidate to be hands-on, capable of diving deep into any part of the stack, and executing complex technical work efficiently. 

As a senior member of the team, you will spearhead technical and infrastructure innovation, mature our code base and development processes, and provide essential technical guidance and mentorship to Junior and Intermediate Data Engineers. You will collaborate closely with cross-functional teams, including Analytics Engineers and Product Managers, to ensure the delivery of optimized data pipelines and reliable, high-impact data products.

Responsibilities Include, But Are Not Limited To:

• Technical
• Design and build robust, scalable, and high-performance ETL/ELT data pipelines
• Develop and implement solutions using advanced programming languages (e.g., Python, SQL, DBT)
• Optimize and performance-tune complex data workflows and queries to handle massive data volumes and ensure minimal latency
• Assist with the design and implementation of data models for Data Warehouses (Snowflake etc.)
• Implement data quality frameworks (validation, monitoring, and testing) to ensure data accuracy, consistency, and completeness
• Establish comprehensive error logging and alerting systems for pipeline health and failure remediation
• Apply DevOps practices to data infrastructure, often involving Infrastructure as Code (e.g., Terraform)
• Management 
• Effectively leverage knowledge, expertise and experience to lead and deliver projects
• Effectively support and mentor data engineers
• Business
• Stakeholder management throughout all business departments
• Collaborate with other engineers and analysts to execute projects
• Personal 
• Perform research and constantly stays on top of the industry’s trends
• Engage and proactively seek opportunities for improvement through ongoing learning

Things That Should Be In Your Background:

• 5+ years experience in the Data industry
  • 4+ years experience in a Data Engineering role
• Expert in SQL to then implement where needed in Data Warehousing systems and Data Pipelines
• PostgreSQL / MySQL / Python / R / Redshift / Snowflake experience
• Experience in database design and database management
• A sound understanding of data management principles, including data quality assurance and data governance
• Experience in source code and version control systems
• Experience with infrastructure automation (Terraform) 
• Familiarity working with containerized services (Docker and Kubernetes)
• Experience in the shipment of data using various methods, such as ETL/ELT, within tools such as Airflow (MWAA), Argo, dbt
• Experience using services within the AWS ecosystem (e.g, RDS, EC2, Redshift, EKS)
• Understanding or knowledge of Linux commands (bash scripting)
• Manages multiple projects, resolves challenges swiftly, delivers adaptable approaches, and values diverse opinions.
• Takes ownership, anticipates new problems, tests solutions, and mentors on effective problem-solving techniques.
• Sets quarterly goals aligned with team objectives, tracks progress in Workday, and communicates barriers to the manager. Takes personal responsibility for quality and timeliness of work, correcting mistakes and learning from them. 
• Demonstrates expert understanding, introduces new tools/methodologies, and provides team training to enhance productivity.
• Tailors messages for audience understanding, engages respectfully in team meetings, synthesizes thoughts effectively, presents confidently, and actively listens to stakeholders.
• Consistently builds and maintains key stakeholder relationships, perceived as a trusted partner, offers sound guidance, and navigates challenging relationships effectively.

Other Attributes That Will Help You In This Role:

• A degree in Computer Science/Information Systems/Engineering preferred

Benefits & Culture

Our global employee base is a diverse collection of innovators, dreamers, and doers working together to transform lives through higher education. We believe that every employee can advance our shared purpose, and that life at 2U should be fun and meaningful. If you’re excited by the opportunity to provide over 40 million learners and counting with access to world-class online higher education, then join us – and do work that makes a difference. #NoBackRow

We offer comprehensive benefits (unique per country) and excellent work/life balance.
Full-time, ZA benefits include: 

• 2 complimentary Getsmarter short courses per year
• Subsidised medical aid with Discovery Health Medical Scheme
• 4% 2U contribution towards Discovery Life Pension Fund and Group Risk Benefit
• Employee Assistance Program (EAP)
• Generous leave policy including time off to volunteer for non-profit organization, study leave, sports leave and a company-wide festive season break

2U Diversity and Inclusion Statement

At 2U, we are committed to building and sustaining a culture of belonging, respect, and inclusion. We are proud of the steps we’ve taken to bring together an employee base that embodies diverse walks of life, ideas, genders, ages, races, cultures, sexual orientations, abilities and other unique qualities. We strive to offer a workplace where every employee feels empowered by what makes us different, as well as by how we are alike. 

2U is committed to providing reasonable accommodations during our recruitment process. If you need assistance or accommodations, please reach out to us at: recruitingaccommodations@2u.com. 

About 2U

For more than a decade, 2U has been the digital transformation partner of choice to great non-profit colleges and universities delivering high-quality online education at scale. As the parent company of edX, a leading global online learning platform, 2U provides over 45 million learners with access to world-class education in partnership with more than 230 colleges, universities, and corporations. Our people and technology are powering more than 4,000 digital education offerings — from free courses to full degrees — and helping unlock human potential. To learn more: visit 2U.com.

About edX

edX is the education movement for restless learners and a leading global online learning platform from 2U. Together with the majority of the world’s top-ranked universities and industry-leading companies, we bring our community of over 45 million learners world-class education to support them at every stage of their lives and careers, from free courses to full degrees. And we're not stopping there — we're relentlessly pursuing our vision of a world where every learner can access education to unlock their potential, without the barriers of cost or location. Learn more at edX.org.

Learn more at https://2u.com/careers/
#NoBackRow

The above statements are intended to describe the general nature and level of work performed by individuals assigned to this position, and are not intended to be construed as an exhaustive list of all responsibilities, duties and skills required. All employees may be required to perform duties outside of their normal responsibilities from time to time, as needed.

2U is an equal opportunity employer that does not discriminate against applicants or employees and ensures equal employment opportunity for all persons regardless of their race, creed, color, religion, sex, sexual orientation, gender identity, pregnancy, national origin, age, marital status, disability, citizenship, military or veterans’ status, or any other classifications protected by applicable federal, state or local laws. 2U’s equal opportunity policy applies to all terms and conditions of employment, including but not limited to recruiting, hiring, training, promotion, job benefits and pay. 

2U is strongly committed to diversity within its community and especially welcomes applications from South African citizens who are members of designated groups who may contribute to Employment Equity within the workplace and the further diversification of ideas. In this regard, the relevant laws and principles associated with Employment Equity will be considered when appointing potential candidates. We are required by law to verify your ability to work lawfully in South Africa. 2U requires that you submit a copy of either your identity document or your passport and any applicable work permit if you are a foreign national, along with an updated curriculum vitae.

TECHNICAL LEAD, INCIDENT RESPONSE, SOUTH AFRICA

WHO WE ARE

S-RM is a global intelligence and cyber security consultancy.  Since 2005, we’ve helped some of the most demanding clients in the world solve some of their toughest information security challenges. 

We’ve been able to do this because of our outstanding people.  We’re committed to developing sharp, curious, driven individuals who want to think critically, solve complex problems, and achieve success. 

But we also know that work isn’t everything. It’s about the lives and careers it helps us build.  We’re immensely proud of this culture and we invest in our people’s wellbeing, learning, and ideas every day.

We’re excited you’re thinking about joining us.

WORKING IN CYBER AT S-RM

Our Cyber Security division is the fastest-growing part of S-RM.  The cyber sector is always evolving, and our Advisory, Ethical Hacking, and Incident Response practices are in more demand than ever.

We’re building a team to meet this challenge.  We’re quick to respond, innovate, and improve.  We don’t get too hung up on hierarchy or bureaucracy.  If your ideas are good enough, we’ll empower you to implement them.  If you’re the best person to talk to a customer, you’ll get that opportunity, regardless of the title in your email signature. And when you need a hand, your team will always have your back.

We also don’t believe there’s a typical cyber security professional.  We’ve built a team of intelligence analysts, technical specialists, software developers, investigators, risk managers, and more.  You’ll always find a range of perspectives and expertise to help you learn and grow.

If that sounds like your kind of team, we’d like to hear from you.

THE ROLE

Our Incident Response Consultants are a critical part of our Cyber Security consulting practice’s success. As a Technical Lead, you will deploy your incident response expertise in a senior, client‑facing delivery role across our incident response services.

You will work across the full lifecycle of security incidents to help our clients respond and recover, spanning both traditional incident response scenarios (such as ransomware, business email compromise and intrusion investigations) and modern incidents affecting cloud platforms, CI/CD pipelines and software delivery environments.

WHAT YOU WILL DO

You will be responsible for leading and delivering technical investigations for clients, including:

• Leading technical incident response engagements from first contact through to closure
• Acting as the primary technical resource on response cases, applying your own expertise and providing guidance to colleagues on the project team.
• Overseeing host‑, network‑ and cloud‑based investigations, including:
• Triage and containment
• System recovery and remediation support
• Technical evidence collection and forensic analysis
• Log, malware and root cause analysis

• Investigating a wide range of incident types, including but not limited to:
• Ransomware and extortion incidents
• Business Email Compromise (BEC)
• Unauthorised access and data breaches
• Incidents involving cloud environments, CI/CD pipelines, automation and software supply chains

• Applying cloud and DevOps‑related expertise where required, for example when incidents involve:
• Compromised cloud identities, APIs or control planes
• Abuse of CI/CD pipelines, source code repositories or secrets
• Infrastructure‑as‑Code and automated deployment workflows
• Developing and sharing domain expertise
  We will support you to deepen your technical knowledge and share it across the wider team through internal initiatives, training and capability development.
• Participating in an on‑call rotation
  Providing 24×7×365 incident response coverage for our clients.

OTHER FEATURES OF THE ROLE

• Variety of casework
  No two days are the same. You will respond to a diverse range of incidents across public and private sector clients, industries and technology stacks.
• Range of opportunities
  In addition to incident response, you will have opportunities to contribute to related consulting work such as post‑incident reviews, incident readiness, threat exposure assessments and broader advisory projects.
• Flexible working practices
  Incident response can be intense, high‑pressure work. We are mindful of work/life balance and offer flexible working arrangements to support wellbeing.

WHAT WE’RE LOOKING FOR

Candidates with the following experience and attributes are likely to succeed as Incident Response Consultants at S‑RM.

That said, if you don’t meet every criterion below but are interested in the role, we encourage you to apply. We value individuals who are particularly strong in certain areas and keen to develop in others.

We nurture a culture of equality, diversity and inclusion and are committed to building a workforce with varied backgrounds, skills and perspectives.

Experience

• 5+ years’ experience in a technical cyber security, cloud security, DevSecOps, platform engineering or related role.
• Direct experience working in a consulting or in‑house incident response team is beneficial, but not essential.

Approach

• A strong investigative mindset, with the ability to work through complex problems using limited or incomplete information.
• Comfortable operating in high‑pressure, time‑critical client situations.

Technical skillset

• Strong technical foundations suitable for investigating a range of incident types, including ransomware and intrusion scenarios.
• Experience or strong interest in cloud and modern infrastructure, such as:
• AWS, Azure or GCP
• CI/CD platforms and automation
• Identity, logging and audit trails in cloud environments
• Comfortable using scripting and automation to support investigations and analysis.

Threat awareness

• Demonstrable knowledge of cyber threat actors and their tactics, techniques and procedures, including those targeting both traditional enterprise environments and modern cloud‑based systems.

Communication

• Able to clearly communicate technical findings and risk to non‑technical client audiences in a professional consulting setting.

Qualifications

Relevant certifications are not required, but the following (or similar) are beneficial:

GCFE, GCFA, EnCE, CFSR, CISSP, GREM, CCNA, MCFE, OSCP, Network+, Security+
Cloud and platform‑focused certifications (AWS, Azure, GCP, Kubernetes, Terraform) are also advantageous.

The successful candidate must have permission to work in South Africa by the start of their employment.

OUR BENEFITS 

We offer thoughtful, balanced rewards and support to help our people do their best work and live their lives outside it, this includes but is not exhaustive of:

• 23 days holiday per year in addition to public holidays (+1 day for every year of service up to a maximum of 30 days in total);
• Hybrid working and flexible working hours;
• Matching pension contribution up to 7% (up to a maximum of 14% combined), and financial education;
• Life Insurance 4X annual salary.

Parental Support:

• Fertility treatment leave – 5 days of leave per cycle of treatment per year;
• Maternity leave – 26 weeks of full pay followed by 13 weeks of half pay;
• Paternity leave – 6 weeks of full pay.

Various Health and Medical Benefits including:

• Medical Aid (taxable benefit) for you and your immediate family
• EAP program for you and your immediate family;
• Free access to the world-famous mindfulness app.

THE APPLICATION PROCESS 

We want to get to know you, and for you to get to know us, to see if we’d be a good fit.  We are responsive and respectful of people’s time throughout our hiring process. 

A typical application process includes:  

• Initial screening of your application by our recruiting team. 

• An interview to assess your baseline technical skills. 

• An interview to discuss your previous experience and broader competencies. 
  
  
• An final interview to determine alignment with the role. 

Please apply via: Job Application for Technical Lead, Incident Response at S-RM

About us:

Luno is the crypto investment app you can rely on, enabling you to buy, store and explore crypto securely. We’re committed to putting the power of cryptocurrency in everyone's hands sensibly and responsibly.

Since 2013, we’ve helped millions of people around the world invest safely in crypto. We do this by cutting through the hype and supporting customers at every step of the way. All products and cryptocurrencies on our platform must first meet stringent legal, risk and technical security standards. 

Transparency is key for us. Luno stores all crypto on a 1:1 basis and we have rigorous processes in place so you can be confident your investment is secure. We’re available in more than 40 countries around the world and we work closely with respective regulators in all of these markets to be fully compliant, as we believe this is the best way to help everyone, everywhere, invest safely.

About the team:

The Platform SRE team at Luno owns the full infrastructure stack - from Kubernetes and AWS through to CI/CD, observability, networking, and developer tooling. We work with high autonomy, balancing business initiatives, platform improvements, and the reliability work that keeps a global financial platform running. We build for the future and enable developers to deliver now. We are spread across the world and operate in a remote-first environment, where collaboration and communication is crucial day-to-day. 

The role in a nutshell:

As a Staff SRE at Luno, you are providing technical expertise and oversight for reliability and scalability across our cloud estate. Joining a high-impact team, you will help shape the future of our platform while partnering with teams throughout the engineering organisation to scale reliability and accelerate delivery.

You’ll help manage multi-region Kubernetes and AWS at scale within a regulated financial environment - where uptime is critical. Beyond solving complex problems, you’ll define the technical roadmap, prioritize high-impact initiatives, and lead their execution.

Your mission will be:

• Owning and driving large-scale platform initiatives from problem definition through to delivery - setting technical direction, aligning stakeholders, and seeing projects through
• Shaping how the Platform team builds and operates: from architectural standards to how we respond when things go wrong.
• Building and scaling infrastructure and CI/CD processes on the Luno platform by applying and enforcing Infrastructure as Code.
• Apply security first principles when building - ensuring compliance with various security and legal audits that we apply for and encounter in the crypto industry.
• Contributing to the team's long-term roadmap while staying hands-on - this is a role that requires both strategic thinking and the ability to go deep.
• Increasing AI adoption throughout the Platform team and engineering as whole, identifying opportunities to improve how we work and increase efficiency. 

A little about you:

• You're energised by hard infrastructure problems and take pride in solving them properly, not just quickly
• You’re comfortable influencing team decisions without direct ownership, using data, clear reasoning and pragmatic choices.
• You're comfortable with ambiguity and are able to bring structure to it through research and requirements.
• You communicate clearly and directly with both technical and non-technical stakeholders - recognizing that written context is just as important as the work itself. 
• You’re curious by nature and motivated to keep learning as tools, techniques and the platform landscape evolves.
• You have an active interest in AI tooling and emergent technologies.

The ideal Lunaut will have:

• Deep, hands-on experience in a Site Reliability, Platform, DevOps, or Infrastructure engineering role.
• Strong AWS knowledge, with experience architecting and operating multi-account, multi-region environments.
• Production-grade Kubernetes experience: building, running and scaling clusters with strict uptime requirements. 
• Extensive experience with observability and monitoring tooling to support live services. 
• Experience partnering with cross-functional teams to scope, design and implement business-lead projects.
• Demonstrable experience in managing large infrastructure projects using Terraform
• Experience leveraging AI tools to increase team productivity - from infrastructure automation, to improving operational workflows. 

Life at Luno:

• Remote but reachable work policy gives you the freedom to choose between working from home or the office.
• Plus the option to buy and sell up to 5 days leave
• Improve body and mind, with excellent private medical insurance
• Access to Learnably and our additional learning platforms for your personal and professional development
• 6 months primary care-giver leave
• Paw-ternity leave for your furry friend
• Annual Inspiration Day in addition to your annual leave which increases based on your length of service! 
• A collaborative, friendly work community, with regular social events and virtual cooking, dancing, drawing and house planting classes hosted by our Lunauts
• 0 fees up to a certain amount with Luno from the day you start.*

*Offer only available on Luno Instant Buy, not Luno Exchange

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

About us:

Luno is the crypto investment app you can rely on, enabling you to buy, store and explore crypto securely. We’re committed to putting the power of cryptocurrency in everyone's hands sensibly and responsibly.

Since 2013, we’ve helped millions of people around the world invest safely in crypto. We do this by cutting through the hype and supporting customers at every step of the way. All products and cryptocurrencies on our platform must first meet stringent legal, risk and technical security standards. 

Transparency is key for us. Luno stores all crypto on a 1:1 basis and we have rigorous processes in place so you can be confident your investment is secure. We’re available in more than 40 countries around the world and we work closely with respective regulators in all of these markets to be fully compliant, as we believe this is the best way to help everyone, everywhere, invest safely.

About the team:

The Cloud Security team at Luno is responsible for identifying security threats and improvement areas within our cloud hosted resources, and ensuring that we both strive to implement best practices everywhere and detect any deviations. This team works closely with engineering and IT operations to ensure the best security practices are followed in both areas of the business.

About the role: 

We're looking for a AWS Cloud Security Analyst to be a force multiplier across the organisation, someone who brings deep cloud security expertise, strong architectural thinking, and the confidence to challenge assumptions when needed.You’ll work hands-on across our AWS, Kubernetes, CI/CD and developer environments, surfacing risks early, designing secure patterns, automating controls, and strengthening the foundational security posture that underpins a global crypto exchange.This is a role for someone who wants to build, influence, advise, and elevate — not just run scanners.

Your mission will be:

• Continuously assess and uplift the security posture of our AWS and Kubernetes environments through automation and secure-by-design principles.
• Partner closely with Engineering, SRE, and IT Ops to deliver practical, business-enabling security solutions — not blockers.
• Analyse existing infrastructure and microservice architectures, highlight systemic risks, and define secure patterns that scale.
• Lead security input across new projects from design → delivery, ensuring resilient architectures and guardrails are in place early.
• Develop proof-of-concepts, hardening strategies, and safe rollout plans for improvements.
• Strengthen detection and response capabilities by improving security telemetry, triage, anomaly detection, and automation

• Advanced AWS expertise — ideally with Professional or Specialty certifications.
• Strong experience in Kubernetes, cluster security, and containerised workloads.
• Background in Cloud Engineering / SRE / DevOps / Systems with strong security instincts.
• Proficiency in automation and scripting (Python preferred).
• Hands-on experience with Terraform and secure IaC patterns.
• A solid understanding of CI/CD pipelines and the SDLC.
• A mindset that balances pragmatic engineering with strong security judgement.
• Curiosity, ownership, and a genuine passion for learning and improving systems

Life at Luno:

• Remote but reachable work policy gives you the freedom to choose between working from home or the office.
• Plus the option to buy and sell up to 5 days leave
• Improve body and mind, with excellent private medical insurance
• Access to Learnably and our additional learning platforms for your personal and professional development
• 6 months primary care-giver leave
• Paw-ternity leave for your furry friend
• Annual Inspiration Day in addition to your annual leave which increases based on your length of service! 
• A collaborative, friendly work community, with regular social events.
• 0 fees up to a certain amount with Luno from the day you start.*

*Offer only available on Luno Instant Buy, not Luno Exchange

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Senior Software Engineer - Full Stack

Experience: 4+ years

Where the job is based:  Stellenbosch, South Africa

This role demands flexibility to work during UK hours

Who we are:

Dive into a world where technology meets innovation. At Kerv South Africa, we're not just another tech company. We’re the problem solvers, the magicians who transform complex challenges into seamless digital experiences. Utilising a powerful blend of Power Platform, DevSecOps, Data experiences, and Software Engineering, we create business solutions that truly resonate with our clients while driving extreme value!

With our roots planted in Birmingham and branches spreading across the globe from London to Bangalore, we're a proud member of the Kerv Group - a dynamic £112m revenue technology consultancy leader with a dedicated team of over 700 professionals, partnering with 800+ sector leaders.

People come first always.  We are incredibly proud of our unparalleled work culture. Not just words on paper, we wear our "Great Place to Work" certifications from the UK and India like badges of honour. Immerse yourself in an ocean of opportunities in an atmosphere that celebrates collaboration. Sharpen your prowess with a global multi-discipline team and be guided by the industry's most forward-thinking architects.

Primary Responsibility:

• Develop and maintain scalable, full-stack web applications using Next.js (frontend) and Node.js (backend)
• Build rich, user-centric interfaces that bring complex business processes to life through clean and responsive UI components
• Create RESTful using Node.js and TypeORM, with strong data modelling and performance in mind
• Write modular, maintainable code with comprehensive unit and integration tests, following TDD, using frameworks like Jest and Supertest
• Design and manage infrastructure components using Docker Compose, Terraform and deploy to AWS services (EC2, ECS, RDS, S3, etc.)
• Translate UI/UX wireframes into functional front-end code with high attention to performance and accessibility
• Produce clear and concise technical documentation using DDD
• Collaborate with Engineers, Product, DevOps, and QA to ensure seamless end-to-end delivery
• Participate in code reviews, trunk-based development, continuous integration, and agile development practices

Essential Skills:  

• Strong experience with OO, enterprise integration, microservice and serverless architecture
• Strong experience with js or React.js, including SSR/ISR concepts
• Proficiency in js, Express.js/Fastify, and TypeORM or equivalent ORM tools
• Solid understanding of TypeScript, HTML5, CSS3
• Experience working with Docker Compose for local development and containerized deployment
• Comfortable using AWS services like EC2, ECS, RDS, and S3
• Strong knowledge of RESTful API design, error handling, and security best practices
• Experience with unit and integration testing using tools like Jest, Mocha, or Supertest
• Proficient using as Git, and CI/CD pipelines

Desirable Skills:  

• Knowledge of PostgreSQL, MariaDB, GraphQL, or MongoDB
• Familiarity with DevOps practices and infrastructure as code (e.g., Terraform, Biceps)
• Exposure to Agile/Scrum development practices
• Prior experience in building isomorphic/universal React applications
• Experience with mobile-first design or progressive web apps (PWAs)

We’re also looking for people that fit how we work, which is something like; 

• Excellent English speaking and written communication
• Ability to identify and pick up new technologies and operating systems quickly
• Ability to work effectively with remote teams in different time zones
• Ability to work flexibly to deliver on-time to tight timescales

What we can do for you:

We’re a transparent, honest and fiercely equal employer that believes completely in providing the best possible work experience for our employees:  

Real Flexibility – we’re a family first organisation, and if the work gets done, you can work when and wherever you want. A healthy approach for most of our teams seems to be splitting three ways between home, customer sites and the office. 

Awesome Environment – all of our employees will tell you that we foster an easy going environment, are experts at what we do and care deeply about what we work on, and the company was started specifically to find a way for people to take more enjoyment from their work. 

Interesting Work – these days most of our customers are household names and many of our projects have an important impact on the world around us. The kind of things we do regularly include working with not-for-profits to transform how they leverage technology, working with public bodies to shape digital services and working with top tier private entities to bring genuinely new and meaningful products and services to market. 

Recognition & Growth – Recognized as a 'Great Place to Work' in both the UK and India, our commitment to excellence goes beyond our products and services. Our culture is a testament to the dedicated technologists who work tirelessly to drive our vision forward. Being a part of Kerv Digital means embracing a culture of innovation, collaboration, and mutual respect. Our teams in the UK and India thrive in an atmosphere that promotes continuous learning and growth.

Join us at Kerv Digital, where we don’t just build ground breaking technology - we build future.

Don’t take our word for it though, check out our impartial Glass Door reviews

More on equality:

At Kerv, we’re building something special and we’re building it to last. We want everybody to feel valued, included and love working together. With an uncompromising pursuit of amazing employee experience, we always strive to do the right thing. We believe and will relentlessly promote and support the power of diversity, equality and belonging, through collaboration and creating exceptional solutions together.