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Application Security Engineer
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Our mission
We're making Africa the first cashless continent.
In 2017, over half the population in Sub-Saharan Africa had no bank account. That's for good reason—the fees are too high, the closest branch can be miles away, and nobody takes cards. Without access to financial institutions, people are forced to keep their savings under the mattress. Small business owners rely on lenders who charge extortionate rates. Parents spend hours waiting in line to pay school fees in cash.
We're solving this by building financial services that just work: no account fees, instantly available, and accepted everywhere. In places where electricity, water and roads don't always work, you can still send money with Wave. In 2017, we launched a mobile app in Senegal for cash deposit, withdrawal, and peer-to-peer and business payments. Now, we have millions of users across 9 countries and are growing fast.
Our goal is to make Africa the first cashless continent and that's where you come in...
How you'll help us achieve it
Wave is now the largest financial institution in Senegal and Côte d'Ivoire, with millions of users, growing rapidly year-on-year. And, we’re still in the early days of our product roadmap and potential impact on people’s everyday lives.
We’re looking for an experienced security engineer who’s independent, excited about getting things done, and ready to hit the ground running. You'll primarily be responsible for our application security, working with our product teams to work on new systems to enhance our security posture. Our customers trust us with their money, and you’ll be at the forefront of making sure we retain that trust!
This broadly scoped role will allow you to get your hands on many different types of security projects, from direct application security to helping our infrastructure team think about security for our databases.
Some experience with common industry certifications like ISO-27001 and PCI-DSS would be beneficial, although you won’t be expected to run or oversee audits.
Our to-do list changes constantly, but here are some recent projects and activities:
- Centralise application-level login and permissions enforcement
- Configure and utilise external SIEM solutions to monitor our infrastructure
- Help us increase our posture around secret management
- Security review of our public-facing APIs
- Partner with teams across Wave to define secure guardrails, supporting investigations and incident response
- Work with our IT Team to fix any non-conformities found during audits by central banks and ISO certification
Our stack (prior experience is a strong plus, but not required):
- backend: Python 3 (+ mypy)
- API layer: GraphQL
- android frontend: Kotlin/Jetpack
- iOS frontend: Swift/SwiftUI
- web frontend: TypeScript/React
- database: Postgres/CockroachDB
- infrastructure: GCP/Terraform
- orchestration: Kubernetes
Key Details
- This is a fully remote role. Candidates must be based in one of our talent hub countries (UK, Spain, Kenya and Ghana) or in one of our operating markets in Africa including Senegal, Côte d'Ivoire, or Burkina Faso.
- Wave provides a yearly $1,200 stipend to support coworking meetups with teammates.
- Remote team members are expected to travel to our operational markets (e.g. Senegal or Côte d'Ivoire) at least once a year. Exceptions apply, but we’ve found this key to understanding our users and product.
- Our salaries are competitive and are calculated using a transparent formula. For this role, depending on your level and location, we offer a salary of up to $227,900 USD, plus a generous equity package.
- Major benefits:
- Subsidized health insurance for you and your dependents and retirement contributions (both vary from country to country).
- 6 months of fully paid parental leave and subsidized fertility assistance.
- Flexible vacation, with most folks taking between 21-30 days exclusive of statutory holidays.
- $10,000 annual charitable donation matching.
Requirements
- Minimum of 5 years of professional experience with a minimum of 2 years of it spent in a security-related role.
- Strong Experience with Python.
- Fluent English.
You might be a good fit if you
- Are excited about finding the right balance between security and velocity.
- Push through hard problems without giving up.
- Have experience remediating non-conformities.
- Enjoy helping other engineers understand and implement secure patterns.
- Are not afraid to take on complicated systems.
- Are excited to work on lots of different security-related work, from audits to code refactors.
- Work to make things easier for the next engineer who will touch your code.
- Always try to improve as a programmer and colleague.
- Are interested in security-focused source code review and penetration testing.
- Have an interest in growing and mentoring a team.
About engineering at Wave
We care about the big picture. We don’t hire engineers to just ship tickets. We hire them to solve problems. That means caring deeply about outcomes, understanding context, and jumping in wherever something’s broken, even if it’s technically “not your area.” When we see problems, inefficiencies, or opportunities to make something better, we act. We dig into operational issues, clarify fuzzy product specs, or step into unfamiliar code to help unblock teammates.
We move as fast as possible. Speed matters. It lets us try things quickly, get feedback early, and course-correct while it’s cheap. So we write small PRs. We aim for MVPs. We leave TODOs and file follow-ups. We don’t over-perfect v1. That said, we’re building a financial product. Some things—like money movement, correctness, or security—deserve more caution.
We like boring technology. We favor tools that are reliable, well-understood, and easy to debug. This keeps us focused on solving meaningful problems instead of wrestling with unpredictable infrastructure. If a new technology helps us move faster, build safer, or solve a real need, we’ll consider it. But we don’t adopt tools just because they’re new—we adopt them because they’re right.
Simplicity is a strategy. It lets us focus our energy where it matters most: serving our users.
#LI-DH1 #LI-REMOTE
Our team
- We have a rapidly growing in-country team in Senegal, Côte d'Ivoire, Mali, Burkina Faso, The Gambia, Uganda, Niger, Sierra Leone, and Cameroon plus remote team members spread across the world.
- We're deeply passionate about our mission of bringing radically affordable financial services to the people who need them most.
- We foster autonomy for our employees. You'll own your projects at every stage, from understanding the problem to monitoring your solution in production.
- We raised the largest Series A in Africa in 2021. Our world-class investors, include Founders Fund, Sequoia Heritage, Stripe, Ribbit Capital, Y Combinator, and Partech Africa.
- We are on Y Combinator's top companies by revenue.
How to apply
Fill out the form below, and upload a resume in English and a cover letter describing your interest in Wave and the role.
We review applications frequently and recommend that you apply to the role that most closely aligns with your skills, experience and career goals.
Wave is an equal-opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.
Ready to apply?
Apply to Wave
About this job
Teamwork plays an integral role in the success of our tech strategy. In JUMO, our teams have exposure to a broad range of the best new technology, and are trusted with the autonomy and flexibility to explore, innovate and find creative solutions to interesting challenges. With this, everyone has the opportunity to contribute to our mission of enabling equal access to finance opportunities. We have chosen our tech stack carefully and believe in using the best tools out there.
Our software engineering team is responsible for building our market-leading banking as a service platform & products, enabling real-time access to funds at the lowest possible operating cost. When integrated into JUMO’s platform, it enables our partners to offer loans, savings and a wide range of financial choices to a new group of customers.
As a Junior Software Engineer, you will be accountable for solving complex technical problems with solutions that are scalable, testable, maintainable, and efficient, whilst continuing to improve our engineering practices. This position reports to a Tech Lead.
You will
- You will deliver across the SDLC to build a highly scalable distributed system
- Assist in defining the team's roadmap in line with the company and technology vision.
- Architect services and systems using well accepted design patterns to allow for iterative, autonomous development and future scaling.
- Design, implement, test, deploy, and support our products and services.
- Review code developed by other developers and provide feedback.
- Guide the team to consistently write production-ready code that is easily testable, easily understood by other developers and accounts for edge cases and errors.
- Anticipate and communicate blockers, delays and cost ballooning within their team’s projects, before they require escalation.
- Contribute to existing documentation or educational content and drive best practices and engineering excellence.
You will need
- 1 - 2 years’ of experience with Kotlin / Java / Scala, and a cloud-based infrastructure, ideally AWS. Python experience will be an added advantage.
- Experience designing, developing and testing software.
- Some experience with the design and development of high-volume/low-latency services.
- Business and operational awareness.
- Good communication skills & EQ – able to work in a diverse team.
We ask a lot of each other at JUMO, but we give a lot too.
You will love
- Work in an agile cross-functional team, delivering quality code you can be proud of.
- Work with a modern but pragmatic Tech Stack (i.e. Kotlin + Spring Boot for Backend, TypeScript + React for Web and Mobile, Docker, Terraform, Kubernetes, Kafka, Flink, Datadog, GitHub Actions + ArgoCD for CI/CD, AWS), building a highly scalable distributed system
- Ensure consistency and accuracy when required.
- Led and supported by an experienced, hands-on Tech Lead.
- Collaborating with smart, engaging people.
- Working for impact.
- Growing and learning continuously, with loads of encouragement and support.
- Boldly taking risks as we navigate new challenges.
- Flexible work practices enabling your best delivery.
- Being autonomous and empowered to lead.
Remote First
Our environment is designed to foster innovation and enable collaboration. We operate a remote-first approach that enables us with the flexibility to work and live where we are most productive. We work between the UTC and UTC+3 time zones and currently have team members based in South Africa, Portugal and Kenya.
Diversity and Inclusion
At JUMO, we firmly believe that diversity strengthens our teams. We are dedicated to fostering an inclusive recruitment process that cultivates an environment where all individuals can be authentic, collaborate, and thrive.
Ready to apply?
Apply to JUMO
About this job
Teamwork plays an integral role in the success of our tech strategy. In JUMO, our teams have exposure to a broad range of the best new technology, and are trusted with the autonomy and flexibility to explore, innovate and find creative solutions to interesting challenges. With this, everyone has the opportunity to contribute to our mission of enabling equal access to finance opportunities. We have chosen our tech stack carefully and believe in using the best tools out there.
Our software engineering team is responsible for building our market-leading banking as a service platform & products, enabling real-time access to funds at the lowest possible operating cost. When integrated into JUMO’s platform, it enables our partners to offer loans, savings and a wide range of financial choices to a new group of customers.
As a Software Engineer, you will be accountable for solving complex technical problems with solutions that are scalable, testable, maintainable, and efficient, whilst continuing to improve our engineering practices. This position reports to a Tech Lead.
You will
- Deliver across the SDLC to build a highly scalable distributed system.
- Assist in defining the team's roadmap in line with the company and technology vision.
- Architect services and systems using well accepted design patterns to allow for iterative, autonomous development and future scaling.
- Design, implement, test, deploy, and support our products and services
- Review code developed by other developers and provide feedback. Guide the team to consistently write production-ready code that is easily testable, easily understood by other developers and accounts for edge cases and errors.
- Anticipate and communicate blockers, delays and cost ballooning within their team’s projects, before they require escalation.
- Contribute to existing documentation or educational content and drive best practices and engineering excellence
You will need
- A Computer Science degree
- Experience with Kotlin / Java / Scala, and a cloud-based infrastructure, ideally AWS. Python experience will be an added advantage
- Experience designing, developing and testing software
- Extensive hands-on experience with the design and development of high-volume/low-latency services
- Business and operational awareness
- Good communication skills & EQ – able to work in a diverse team
We ask a lot of each other at JUMO, but we give a lot too.
You will love
- Work in an agile cross-functional team, delivering quality code you can be proud of
- Work with a modern but pragmatic Tech Stack (i.e. Kotlin + Spring Boot for Backend, TypeScript + React for Web and Mobile, Docker, Terraform, Kubernetes, Kafka, Flink, Datadog, GitHub Actions + ArgoCD for CI/CD, AWS), building a highly scalable distributed system
- Develop as a mentor, helping your junior colleagues grow as professionals
- Ensure consistency and accuracy when required
- Led and supported by an experienced, hands-on Tech Lead
- Collaborating with smart, engaging people
- Working for impact
- Growing and learning continuously, with loads of encouragement and support
- Boldly taking risks as we navigate new challenges
- Flexible work practices enabling your best delivery
- Being autonomous and empowered to lead
Remote First
Our environment is designed to foster innovation and enable collaboration. We operate a remote-first approach that enables us with the flexibility to work and live where we are most productive.
We work between the UTC and UTC+3 time zones and currently have team members from South Africa, Portugal and Kenya.
Diversity and Inclusion
At JUMO, we firmly believe that diversity fortifies our teams. We are dedicated to fostering an inclusive recruitment process that cultivates an environment where individuals from all walks of life can collaborate, thrive, and express their authentic selves.
Ready to apply?
Apply to JUMO