Senior Software Engineer - Full-Stack

Nium, the Leader in Real-Time Global Payments 

Nium, the global leader in real-time, cross-border payments, was founded on the mission to deliver the global payments infrastructure of tomorrow, today. With the onset of the global economy, its payments infrastructure is shaping how banks, fintechs, and businesses everywhere collect, convert, and disburse funds instantly across borders.

Its payout network supports 100 currencies and spans 220+ markets, 100 of which in real-time. Funds can be disbursed to accounts, wallets, and cards and collected locally in 35 markets. Nium's growing card issuance business is already available in 34 countries. Nium holds regulatory licenses and authorizations in more than 40 countries, enabling seamless onboarding, rapid integration, and compliance – independent of geography. The company is co-headquartered in San Francisco and Singapore. 

Position Overview: 

We are seeking an experienced Senior Full-Stack Developer with a deep understanding of backend development using Node.js and a basic understanding of front-end technologies like React or Next.js. The ideal candidate will have a strong foundation in system design, data structures, and algorithms, along with a deep understanding of relational databases such as PostgreSQL or MySQL. Additionally, the candidate should possess knowledge of AWS services to support scalable and reliable infrastructure. Experience in leading a small team of developers is essential. 

Key Responsibilities:

• Backend Development: Design, develop, and maintain secure, scalable, and high-performance backend services using Node.js. 
• Frontend Integration: Collaborate with front-end developers and integrate back-end services with user interfaces built using React or Next.js. 
• System Design: Architect and design complex systems, ensuring scalability, reliability, and maintainability. 
• Data Structures & Algorithms: Apply deep knowledge of DSA to optimize backend and full-stack solutions. 
• Database Management: Design, develop, and optimize relational database schemas and queries, with a focus on PostgreSQL or MySQL. 
• AWS Services: Utilize AWS services (e.g., EC2, S3, Lambda) to build and maintain scalable cloud-based infrastructure. 
• Team Leadership: Lead a team of up to 3 developers, providing technical guidance, mentoring, and support. Manage workloads and priorities to ensure timely project delivery. 
• Code Quality: Write clean, maintainable, and efficient code, promoting best practices in software development across the team. 
• Security: Implement security best practices to protect data integrity and prevent unauthorized access across the stack. 
• Collaboration: Work closely with front-end developers, product managers, and other stakeholders to deliver high-quality full-stack solutions. 
• Debugging & Optimization: Identify performance bottlenecks and bugs, and devise solutions to address them in both backend and frontend environments. 
• Documentation: Document code, APIs, database schemas, and architectural decisions to ensure maintainability and knowledge sharing across the team. 

Qualifications:

• Education:Bachelor's degree in computer science, Engineering, or a related field (or equivalent practical experience). 
• Experience: 3-5 years of experience in full-stack development, with a proven track record of leading small teams and delivering complex projects. 




Technical Skills: 

• Deep proficiency in Node.js. 
• Basic understanding of front-end technologies, especially React or Next.js. 
• Strong experience with relational databases, particularly PostgreSQL or MySQL. 
• Strong knowledge of system design, data structures, and algorithms. 
• Familiarity with version control systems, preferably Git. 
• Experience with RESTful API development and integration. 




Leadership Skills: 

• Experience leading a team of developers, with the ability to mentor, guide, and manage team dynamics. 
• Excellent problem-solving and decision-making skills. 
• Strong communication skills, with the ability to convey complex technical concepts to both technical and non-technical stakeholders. 




Preferred Qualifications: 

• Experience with microservices architecture. 
• Familiarity with containerization tools like Docker and orchestration platforms like Kubernetes. 
• Knowledge of CI/CD pipelines and DevOps practices. 
• Experience with performance tuning and optimization across the full stack. 

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 Constantly Innovate: Since our inception, Nium has received constant recognition and awards for how we approach both our business and talent opportunities.

-2022 Great Place To Work Certification

-2023 CB Insights Fintech 100 List of Most Promising Fintech Companies. 

- CNBC World’s Top Fintech Companies 2024.

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, the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA) may regulate the way we manage the data of job candidates. Please review our Candidate Privacy Notice for more information. 

Candidate Privacy Notice: https://www.nium.com/privacy/candidate-privacy-notice