At a Glance
- Tasks: Join the Payin Platform team to build innovative payment solutions for global money management.
- Company: Wise, a leading tech company revolutionising how money moves worldwide.
- Benefits: Competitive salary, RSUs, and a range of employee benefits.
- Other info: Dynamic team culture with opportunities for personal and professional growth.
- Why this job: Make a real impact on how millions manage their money with cutting-edge technology.
- Qualifications: 5+ years in Java or similar languages, strong communication skills, and a passion for customer experience.
The predicted salary is between 111000 - 145000 £ per year.
hackajob is collaborating with Wise to connect them with exceptional professionals for this role.
Company Description
Wise is a global technology company, building the best way to move and manage the world’s money. Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, Wise is on a mission to make their lives easier and save them money.
About The Role
We are looking for a talented Senior Software Engineer to join our Payin Platform team in the London office. This team owns the layer that powers how money enters Wise. The platform sits between our product teams (Transfer, Acquiring Payment, and any new product that needs to take money in) and the payment methods we support (Cards, Apple Pay, Google Pay, Balance, Bank Transfer, PISP, UPI, Direct Debit, and more).
What will you be working on?
Rather than owning a single payment method, we build the Payin Session and Payment abstractions that let every product integrate a payment method once and scale to millions of transactions without re‑solving the same problems. This is a high‑volume, high‑leverage platform role: the systems you build are used by many teams across the company, so correctness, reliability, and thoughtful API design matter enormously.
Qualifications
- 5+ years of experience in Java, Kotlin, Python or Go
- Strong experience with Spring framework, relational databases, distributed and concurrent systems (Kafka)
- Great cross‑team communication – can discuss and champion complex, technical topics with a wide and varied audience, from fellow engineers to non‑technical stakeholders across lots of teams.
- You enjoy writing testable code and you have experience in testing strategies, such as unit testing, integration testing
- You believe in and follow best coding practices, code reviews and open feedback
- You have great communication skills and the ability to articulate complex, technical concepts to non‑technical audience
- You strive to improve our team culture and processes
- A strong product mindset and passion for customer experience, you prioritise work with the customers in mind and make data‑driven decisions to fix customer pain‑points
- Being able to work independently on customer problems is a key to success – you take responsibility and end‑to‑end ownership of your projects: drive and own them to make sure we hit the goals we want to achieve
What Do We Offer
Starting salary: 111K - 145K GBP + RSUs
Wise Benefits
Senior Software Engineer II - Payin Platform - Backend (Java) in London employer: hackajob
At hackajob, we pride ourselves on being an exceptional employer that fosters a culture of innovation and inclusivity. Our diverse team thrives in a high-performance environment where your contributions directly impact our multi-asset platform's success. With ample opportunities for professional growth and a commitment to employee development, joining us means being part of a forward-thinking company that values your expertise and ambition.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Software Engineer II - Payin Platform - Backend (Java) in London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at hackajob or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to hackajob.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like hackajob.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like hackajob that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Senior Software Engineer II - Payin Platform - Backend (Java) in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at hackajob.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at hackajob and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at hackajob
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If hackajob uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
