Senior Software Engineer - Backend

Nium, the Leader in Real-Time Global Payments 

About Nium

Nium is the leading global infrastructure for real-time cross-border payments. We were founded on the mission to deliver the global payments infrastructure of tomorrow, today. Our platform enables banks, fintechs, and global businesses to move money instantly, everywhere.  

Co-headquartered in San Francisco and Singapore with offices in 14 markets worldwide, we are entering one of the most exciting chapters in our journey. In July 2025, we delivered the largest month in our 10-year history with record revenue, record volumes, and EBITDA profitability. Today, Nium moves nearly $50B in payments annually, almost entirely for enterprises, while continuing to strengthen an already healthy balance sheet. 

It is an incredible time to join us, and we are only just getting started. 

Our payout network spans 190+ countries and 100 currencies, with 100 corridors in real time. We power seamless transfers to accounts, wallets, and cards, support local collections in 35 markets, and run a card issuance business live in 34 countries. Backed by regulatory licenses in more than 40 markets, we make it simple for our partners to onboard, integrate, and scale globally. This scale and innovation have earned us recognition as one of CNBC’s World’s Top Fintech Companies 2025, winner of Best Cross-Border Payments Solution at the PayTech Awards, and inclusion in FXC Intelligence’s Top 100 Cross-Border Payments Companies list. 

In 2024, we raised US$50 million in Series E funding at a US$1.4 billion valuation to accelerate network expansion, product innovation, and talent growth. With the B2B payments market projected to hit US$175 trillion by 2030, Nium offers ambitious builders the chance to shape the future of global money movement with the scale of a leader and the energy of a high-growth company. 

About the role

Our ideal candidate has deep experience in building scalable and reliable backend systems, services and APIs that deliver value to our customers. This role will make impactful contributions and will proactively identify gaps and future work for the team.

• Deliver and own large features end-to-end.
• Collaborate with our product team to deliver high impact for our customers.
• Proactively identify ways to monitor the quality, reliability, and security of our systems.
• Abide by engineering best practices.

• 5+ years of backend engineering experience.
• Experience building and operating highly available backend distributed systems.
• Proficiency in at least one of Java, Python, C++, C#, Golang.
• Strong communication (written and verbal) and interpersonal skills.
• Thrive in a collaborative and fast-paced environment.
• Passion for turning business and product ideas into engineering solutions.

What we offer at Nium  

We Value Performance: Through competitive salaries, performance bonuses, sales commissions, equity for specific roles and recognition programs, we ensure that all our employees are well rewarded and incentivized for their hard work. 

We Care for Our Employees: The wellness of Nium’ers is our #1 priority. We offer medical coverage along with 24/7 employee assistance program, generous vacation programs including our year-end shut down. We also provide a flexible working hybrid working environment (3 days per week in the office). 

We Upskill Ourselves: We are curious, and always want to learn more with a focus on upskilling ourselves. We provide role-specific training, internal workshops, and a learning stipend.

We Celebrate Together: We recognize that work is also about creating great relationships with each other. We celebrate together with company-wide social events, team bonding activities, happy hours, team offsites, and much more!  

We Thrive with Diversity: Nium is truly a global company, with more than 33 nationalities, based in 18+ countries and more than 10 office locations. As an equal opportunity employer, we are committed to providing a safe and welcoming environment for everyone.  

For more detailed region specific benefits :  https://www.nium.com/careers#careers-perks 

For more information visit www.nium.com 

Depending on your location, certain laws may regulate the way Nium manages the data of candidates. By submitting your job application, you are agreeing and acknowledging that you have read and understand our Candidate Privacy Notice located at www.nium.com/privacy/candidate-privacy-notice.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.