Get hired at Fuse
within 2 weeks from today
Sr. Backend Engineer (JavaScript/Node) at Fuse
Fuse: Reinventing auto loan origination with next-gen, no-code innovation.
The Good Stuff
Monthly salary:
$8,000 USD
Capital Raised:
10M
Engineer team size:
10
Remote Culture:
Remote First
Required stack
NodeJS
Typescript
Javascript
AWS
Microservices
PostgreSQL
MongoDB
![]()
NestJS
Nice to have
Docker
CI/CD
Sr. Backend Engineer (JavaScript/Node) at Fuse
Candidate Location: Argentina & Colombia
Fuse: Reinventing auto loan origination with next-gen, no-code innovation.
As a Sr. Backend Engineer you will:
- Architect and develop high-performance backend services using NestJS, ensuring scalability and maintainability
- Design and optimize PostgreSQL database schemas and query performance
- Implement complex business logic and integration patterns for financial service workflows
- Create and maintain RESTful APIs with exceptional performance characteristics
- Develop robust data modeling strategies that support complex financial service configurations
- Lead backend system design and technical decision-making
- Leverage AWS cloud services to build scalable and reliable infrastructure
- Mentor junior engineers and contribute to the overall engineering team culture
- Implement comprehensive testing strategies, including unit and integration testing
- Establish and maintain backend observability and monitoring infrastructure
- Collaborate closely with frontend, product, and design teams to ensure seamless system integration
You’ll be a great fit if you have:
- 7+ years of professional JavaScript development experience
- 7+ years of professional Node.js development experience
- Extensive experience with NestJS framework
- 6+ years of professional experience with PostgreSQL and relational database design
- Fluency in Spanish – The team primarily communicates in Spanish, so strong written and verbal Spanish skills are essential.
- Proven track record of designing scalable, high-performance backend systems
- Deep understanding of TypeScript and advanced JavaScript patterns
- Strong experience with RESTful API design and implementation
- Expertise in database optimization and performance tuning
- Comprehensive knowledge of backend testing methodologies
- Substantial AWS cloud services experience, including:
- Amazon EC2
- Amazon RDS
- AWS Lambda
- Amazon S3
- AWS CloudWatch
- Infrastructure as Code (CloudFormation or Terraform)
- Experience with microservices architecture
- Strong debugging and systems troubleshooting skills
Bonus points if you have:
- Knowledge of the financial services domain
- CI/CD pipeline configuration experience
- Docker experience
- Message queue systems (RabbitMQ, Kafka) experience
- Backend observability tools experience
Interview Stages:
Flatworld's 3-Step Screening Process
- Skills Test: A quick, role-specific multiple-choice assessment.
- Video Interview: Showcase your communication skills.
- Document Review: Submit your CV and complete a short personality test.
Next Steps with Fuse
- Take-Home Assignment: Complete a task to demonstrate your technical expertise before the first interview.
- Interviews: Participate in 2-3 interviews to evaluate your technical skills, role fit, and overall alignment with Fuse's needs.
Flatworld partners with top companies like Fuse to ensure a tailored and transparent hiring process. We’re here to support you every step of the way.
Visa Sponsorship: Not Available
Alright... so you’ve made it all the way down
You’re probably wondering: “yeh, it sounds great, but what the hell is Flatworld?”
In a nutshell: we help developers find fully remote roles!
What makes us amazing for developers is that instead of applying to jobs individually, you simply apply to our platform and we take care of matching you to a company and getting you hired.
That means we go out and show the companies you're the right fit for them.
We will also hold your hand through the paperwork and hiring process so all you have to do is complete our application, show up to some interviews, and lay back while we get you the job.
It really is that simple... so simple that if Linus was a remote dev looking for a job he'd be like:
“Flatworld is just incredible... I can’t even explain it”
* No, Linus didn’t say this. But he probably would...
Apply Now
Send Role to Email
Fuse Cheat Sheet
Fuse Cheat Sheet
Fuse: Reinventing auto loan origination with next-gen, no-code innovation.
Fuse is a fully remote, NYC-based fintech startup backed by top-tier VCs. Their next-generation low-code platform is revolutionizing financial services by enabling unprecedented self-service configuration, seamless integration, and powerful automation.
What they are solving
Fuse tackles the inefficiencies in the loan origination process by building a next-generation loan origination system (LOS) designed for integration and customization. Their innovative platform is developed to streamline and simplify loan processes for financial institutions, ultimately helping them provide better customer experiences and increase efficiency.
Why you’ll love working at Fuse
The Fuse team:
- is a small, dynamic group of talented individuals.
- is a successful startup with all the raw energy of a super early-stage venture, yet with the financial stability of a more mature company.
- loves problem solving, thinking creatively, and trying new things.
- is deeply connected to their mission and the impact they have on their clients’ lives.
Financial Background
Founded In
2022
Capital Raised
10M
Team stats
Head Count
10
Engineering team
<10
Financial Background
Founded In
2022
Capital Raised
10M
Team stats
Head Count
10
Engineering team
<10