
Senior Software Engineer (Back End)
Job Description
Posted on: January 28, 2026
OUR MISSION At Simply Wall St, we help people become confident, long-term investors. The stock market offers an exceptional opportunity for building wealth, but it’s easy to fail. While many chase quick wins, we believe in thinking long-term and investing like a business shareholder. Our product gives individual investors the capabilities to build a portfolio, previously only available to professionals. WHY JOIN?
- Help us empower individuals by giving them a new way to invest in stocks;
- Work at a profitable, global, B2C SaaS startup;
- Operating at scale with 6.5 million users across 180 countries;
- Small team and flexible working environment;
- Work with a product customers love: 4.5* Trustpilot Reviews;
- Strong employee retention with 70% of the team with us for >2 years.
See more information about the company, how we work and benefits etc https://simplywallst.atlassian.net/wiki/spaces/SWSP/overview
- We are only accepting candidates who are based in Australia with full-working rights. You can work fully remote or come into the office in Sydney
Our Mission Simply Wall St exists to enable individuals to succeed at stock investing and achieve their financial goals. The stock market offers an exceptional opportunity for wealth-building, but many fail. It's tempting to try and rush it, to get rich quick, however, it’s much better (and easier) to think in decades, not months, and imagine becoming a shareholder in a business. Our product embodies the principles of long-term investing, giving individual investors the capabilities to understand stocks and build a portfolio that was previously only available to professionals or institutions. Engineering Problems we are Solving
- As we continue to grow our subscribers we want to focus on performance, reliability and security
- Improve the mobile experience for our users
- Setting up the right analysis/analytics infrastructure
- Internationalisation (multiple languages)
- Thinking through marketing engineering (SEO, building for partner channels, email marketing engine etc)
Our Technical Setup
- We use Javascript (node.js),Typescript and Graph QL. We have a mono repo setup and automated pipeline for CI/CD so the team release multiple times per day. We have a capacitor for mobile app development and we have a lot of monitoring tools like Datadog and Sentry.
As a Senior Software Engineer, you will
- Be joining a high-performing passionate team where you will have a huge impact.
- Help to shape the platform for our growth. We are on the journey to modernise our platform to help us scale: micro-services, GraphQL, Node.js and Next.js should be in your toolbox or in your wish list.
- Be working in a cross-functional context, in highly autonomous squads, across multiple platforms, to ensure that we are giving the best experience possible for our customers.
- Be prepared to own services end to end. Decide how best to build, test, deploy and monitor.
- Engage in technical discussion of solutions and product ideas through documentation, design reviews, pair programming, code review and technology discussions and continuous improvement.
- Work with automated deployment enabling code release multiple times a day.
- Work with modern tools and languages that excite you and solve user problems.
- Build efficient and reusable front-end abstractions and systems.
- Identify and address performance bottlenecks.
About You
- As a Senior Software Engineer, you have several years of experience in a similar role at other SaaS startups or software companies.
- You have some knowledge and/or keen interest about investments and financial markets, but its ok if you don't have either right now, willingness to learn is key!
- You are a passionate technologist and you choose the right tool for the problem to solve. We are happy to hear your stories about dealing with different programming languages.
- Understanding of what it takes to build reliable, scalable and resilient systems using modern best practices.
- Exposure to Classic & Modern JS frameworks as well as the browser ecosystem (TypeScript, Node.js & GraphQL)
- Someone who expects high quality and knows how to work in a high-performing team.
- Growth mindset. What works today may not work tomorrow.
Why Join?
- Help us empower individuals by giving them a new way to invest in stocks;
- Work at a profitable, global, B2C SaaS startup;
- Operating at scale with 6.5 million users, across 180 countries;
- Small team and flexible working environment;
- Work with a product customers love: 4.5* Trustpilot Reviews;
- Strong employee retention with 70% of the team with us for >2 years.
Curious about life at SWS & how we operate? https://simplywallst.atlassian.net/wiki/spaces/SWSP/overview PERKS
- Flexible Remote Working: Work where you are most productive;
- Simply Stop: Time is one of the most valuable commodities, so we stop working early on Fridays;
- Share Club: We provide a subscription to SWS, cash for you to invest & regular sessions to discuss stocks and investment ideas;
- Parental Leave Policy: With a supportive return to work option;
- Learning & Development Fund: We invest in your growth;
- Team Events & Hackathons: An opportunity for everyone to come together and push what is possible.
Apply now
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