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# Senior Backend Software Engineer

## About the Company
We're a Series B fintech startup on a mission to modernize how money moves. With 80 team members distributed across the US, we've built a remote-first culture grounded in autonomy, transparency, and thoughtful collaboration. Backed by leading investors, we're scaling our platform to process billions in payments while staying nimble, curious, and deeply user-focused.

## Role Overview
We're looking for a Senior Backend Software Engineer to help design and scale the payment APIs that power our platform. You'll partner closely with product, infrastructure, and security teams to build reliable, low-latency services that move money safely at scale. This is a hands-on role for an engineer who enjoys solving hard distributed systems problems and mentoring others along the way.

## Key Responsibilities
- Design, build, and operate high-throughput payment APIs using Go and Python on AWS.
- Architect resilient distributed systems that meet strict latency, availability, and consistency requirements.
- Collaborate with product managers and engineers to translate business needs into scalable technical solutions.
- Lead code reviews and technical design discussions, raising the bar for quality, observability, and security.
- Improve performance, reliability, and cost efficiency across core backend services.
- Partner with compliance and security teams to ensure systems meet financial industry standards.
- Mentor engineers and contribute to a culture of learning, feedback, and continuous improvement.
- Participate in an on-call rotation to support production services and drive postmortem learnings.

## Required Qualifications
- 5+ years of professional backend engineering experience building production systems.
- Strong hands-on experience designing and operating distributed systems at scale.
- Proficiency in Go and/or Python, with a willingness to work fluently in both.
- Deep understanding of API design, data modeling, and event-driven architectures.
- Solid experience with AWS services (e.g., EKS, Lambda, SQS, DynamoDB, RDS).
- Familiarity with observability tooling, CI/CD pipelines, and infrastructure-as-code.
- Excellent written and verbal communication skills for a remote-first environment.

## Preferred Qualifications
- Previous experience in fintech, payments, or another regulated industry.
- Exposure to Kafka, gRPC, or other high-throughput messaging frameworks.
- Experience with PCI-DSS, SOC 2, or other compliance-driven engineering work.
- Track record of mentoring engineers or leading cross-team technical initiatives.

## Tech Stack
Go, Python, PostgreSQL, DynamoDB, Kafka, gRPC, Terraform, Docker, Kubernetes (EKS), AWS, Datadog, GitHub Actions.

## Compensation & Benefits
- Base salary range: **$160,000–$200,000**, based on experience and location.
- Meaningful equity in a high-growth Series B company.
- Comprehensive medical, dental, and vision coverage for you and your dependents.
- 401(k) with company match.
- Flexible PTO and paid parental leave.
- Remote-first setup with a home office stipend and annual team offsites.
- Dedicated learning and development budget.

## How to Apply
Submit your resume and a short note about a distributed system you're proud of building through our careers page. We review every application and aim to respond within one week.

We're committed to building a diverse team and an inclusive workplace. We strongly encourage candidates from all backgrounds, identities, and experiences to apply—even if you don't meet every qualification listed.

# Senior Backend Software Engineer

## About the Company

We're a Series B fintech startup revolutionizing payment infrastructure for businesses. Our platform processes millions of transactions daily while maintaining the security and reliability our customers demand. With 80 talented team members distributed across the US, we're building the future of financial technology with a focus on engineering excellence and inclusive collaboration.

## Role Overview

We're seeking a Senior Backend Software Engineer to architect and build scalable, high-throughput payment APIs that power our platform. You'll own critical systems handling millions of transactions, mentor junior engineers, and directly influence our technical direction. This remote-first position offers the autonomy to solve complex distributed systems challenges while working alongside talented engineers who care deeply about code quality and system reliability.

## Key Responsibilities

- Design and develop high-performance payment processing APIs serving millions of daily transactions with sub-100ms latency requirements
- Build and maintain distributed systems on AWS, ensuring 99.99%+ uptime and graceful handling of failure scenarios
- Lead architectural discussions and code reviews, establishing engineering best practices and mentoring team members
- Optimize database performance, caching strategies, and API efficiency through rigorous monitoring and benchmarking
- Collaborate with product, compliance, and infrastructure teams to implement secure, compliant payment workflows
- Participate in on-call rotations and respond to production incidents with thorough root cause analysis
- Contribute to system design documentation and runbooks for operational excellence
- Evaluate and integrate third-party services and tools that enhance our platform capabilities

## Required Qualifications

- 5+ years of backend software engineering experience building production systems at scale
- Demonstrated expertise with distributed systems concepts (consistency, consensus, fault tolerance, eventual consistency)
- Proficiency in Go or Python (or equivalent systems language) with a portfolio of substantial projects
- Strong understanding of relational databases, SQL optimization, and data modeling
- Experience designing and implementing APIs and microservices architectures
- Familiarity with cloud platforms (AWS preferred) and containerization technologies
- Solid grasp of security principles, especially in payment or financial contexts

## Preferred Qualifications

- Experience building payment systems, fintech platforms, or financial infrastructure
- Proficiency in both Go and Python
- Track record of leading technical initiatives or mentoring engineers
- Exposure to event-driven architectures and message queues (Kafka, RabbitMQ, etc.)

## Tech Stack

**Languages:** Go, Python  
**Cloud:** AWS (Lambda, RDS, DynamoDB, SQS, ECS)  
**Databases:** PostgreSQL, Redis  
**Tools & Practices:** Docker, Kubernetes, Git, CI/CD, monitoring and observability platforms

## Compensation & Benefits

- **Salary:** $160,000–$200,000 (based on experience)
- **Equity:** Meaningful stock options
- **Health & Wellness:** Comprehensive medical, dental, and vision coverage
- **Flexibility:** Remote-first culture with optional access to office space; flexible hours
- **Professional Development:** Annual learning budget and conference attendance support
- **Time Off:** Unlimited PTO plus 10 company holidays

## How to Apply

Submit your resume, GitHub profile (or portfolio), and a brief cover letter explaining what excites you about this role to [careers@company.com]. We review applications on a rolling basis and commit to responding within one week.

# Job Title
**Senior Backend Software Engineer**

# About the Company
We’re a Series B fintech startup with a team of 80 employees building modern financial infrastructure for businesses. As a remote-first company across the US, we value ownership, collaboration, and thoughtful execution. Our team is passionate about creating reliable, secure, and scalable products that make payments simpler and faster for our customers.

# Role Overview
We’re looking for a **Senior Backend Software Engineer** to help design and build high-throughput payment APIs that power critical financial workflows. In this role, you’ll work across backend services in **Go and Python**, contribute to system architecture, and improve the performance, reliability, and scalability of our platform on **AWS**. You’ll partner closely with product, engineering, and operations teammates to deliver secure, resilient systems in a fast-moving fintech environment.

# Key Responsibilities
- Design, build, and maintain scalable backend services and payment APIs using Go and Python  
- Architect distributed systems that support high availability, fault tolerance, and strong performance  
- Optimize API throughput, latency, and reliability for transaction-heavy workloads  
- Collaborate with cross-functional partners to translate product and business needs into technical solutions  
- Improve observability, monitoring, and incident response processes across backend systems  
- Write clean, well-tested, maintainable code and contribute to code reviews and engineering standards  
- Support secure software development practices and help ensure compliance-minded system design  
- Mentor engineers through technical guidance, design discussions, and knowledge sharing  

# Required Qualifications
- 5+ years of professional software engineering experience, with strong backend development expertise  
- Experience designing, building, and operating distributed systems in production environments  
- Proficiency in **Go** and/or **Python**, with the ability to work across both languages  
- Hands-on experience building and scaling APIs for high-volume or mission-critical applications  
- Experience working with **AWS** and cloud-native infrastructure  
- Strong knowledge of system design, performance tuning, testing, and debugging  
- Excellent communication skills and experience collaborating on remote, cross-functional teams  

# Preferred Qualifications
- Experience in fintech, payments, banking, or other regulated environments  
- Familiarity with event-driven architectures, asynchronous processing, or message queues  
- Knowledge of security best practices for financial systems and API development  
- Experience with infrastructure as code, CI/CD pipelines, and service observability tools  
- Track record of leading technical initiatives or influencing backend architecture decisions  

# Tech Stack
- **Languages:** Go, Python  
- **Cloud:** AWS  
- **Focus Areas:** Payment APIs, distributed systems, backend services, reliability, scalability, observability  
- **Environment:** Remote-first, collaborative engineering culture  

# Compensation & Benefits
- **Base salary:** $160,000–$200,000, depending on experience and location  
- **Equity:** Meaningful equity package  
- Remote-first within the US  
- Comprehensive health, dental, and vision coverage  
- Flexible paid time off and company holidays  
- Home office and remote work support  
- Opportunities for growth, mentorship, and career development  

# How to Apply
If you’re excited to build resilient payment infrastructure and solve complex backend challenges, we’d love to hear from you. Please submit your resume and, if you’d like, a brief note highlighting your experience with distributed systems, backend APIs, and cloud platforms. We welcome candidates from all backgrounds and are committed to building an inclusive team.

**Job Title:** Senior Backend Software Engineer

**About the Company**
We are a Series B fintech startup on a mission to build the next generation of financial infrastructure. As an 80-person, remote-first team, we value autonomy, collaboration, and impact. We're creating a culture where engineers can do their best work, shaping the systems that will power a new wave of financial services. By joining us, you'll be part of a passionate team committed to solving complex problems with elegant, scalable solutions.

**Role Overview**
We are seeking a seasoned Senior Backend Software Engineer to join our core engineering team. In this role, you will be instrumental in designing, building, and scaling the high-performance payment APIs that power our platform. You will tackle complex challenges in distributed systems, concurrency, and data consistency to deliver reliable and secure services that handle high throughput. This is a unique opportunity to make a significant impact on our core product and engineering culture.

**Key Responsibilities**
*   Design and develop scalable, resilient, and

### Senior Backend Software Engineer

### About the Company
We are a Series B fintech startup with 80 employees, building innovative payment solutions. As a remote-first team in the US, we empower diverse talent to drive financial inclusion through scalable, secure technology.

### Role Overview
Join our engineering team as a Senior Backend Software Engineer, focusing on designing and scaling high-throughput payment APIs. You'll collaborate remotely with cross-functional teams to deliver reliable, performant systems using Go, Python, and AWS in a fast-paced startup environment.

### Key Responsibilities
- Design and implement scalable backend services for high-throughput payment processing.
- Build and optimize RESTful and gRPC APIs using Go and Python.
- Architect distributed systems on AWS, ensuring low-latency and high availability.
- Integrate with third-party payment gateways and compliance services.
- Write unit, integration, and end-to-end tests to maintain code quality.
- Monitor and troubleshoot production systems using observability tools.
- Mentor junior engineers and contribute to technical roadmaps.
- Collaborate on security best practices for financial data handling.

### Required Qualifications
- 5+ years of professional experience building distributed systems.
- Strong proficiency in Go and Python for backend development.
- Hands-on experience with AWS services (e.g., EC2, Lambda, RDS, S3).
- Proven track record developing high-throughput APIs and microservices.
- Familiarity with relational and NoSQL databases (e.g., PostgreSQL, DynamoDB).
- Experience with containerization (Docker) and orchestration (Kubernetes).
- Bachelor's degree in Computer Science or equivalent practical experience.

### Preferred Qualifications
- Experience in fintech or payments domain (e.g., PCI compliance, fraud detection).
- Knowledge of message queues (e.g., Kafka, RabbitMQ) for event-driven systems.
- Contributions to open-source projects or prior startup experience.
- Familiarity with CI/CD pipelines and infrastructure as code (Terraform).

### Tech Stack
- Languages: Go, Python
- Cloud: AWS (EC2, Lambda, ECS, RDS, ElastiCache)
- Databases: PostgreSQL, DynamoDB, Redis
- Tools: Docker, Kubernetes, Kafka, Terraform, Prometheus/Grafana

### Compensation & Benefits
- Competitive salary: $160K-$200K base, plus meaningful equity.
- Comprehensive health, dental, and vision insurance.
- Unlimited PTO, home office stipend, and professional development budget.
- 401(k) matching and parental leave.

### How to Apply
Submit your resume and a brief note on your interest to careers@fintechstartup.com with "Senior Backend Engineer" in the subject line. We encourage applications from underrepresented groups and review on a rolling basis.

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