Software Development Engineer 3

Posted 2 Days Ago
Be an Early Applicant
Bangalore, Bengaluru Urban, Karnataka, IND
In-Office
Senior level
Fintech • Payments
The Role
Designs, builds, and maintains full-stack web applications, focusing on distributed microservices, asynchronous APIs, event-driven pipelines, serverless functions, cloud infrastructure, security, observability, and performance. The role includes automated testing, database migrations, CI/CD optimization, and technical leadership through code reviews, pair programming, and mentoring.
Summary Generated by Built In

About the team / Role

WEX Inc. is a leading and growing global provider of payment processing, information management and fleet card payment solutions.  We hire people who share our passion for continuous innovation and client service that is unparalleled in the industry.  If you are looking for a growing career – come be part of WEX today!


We’re the mobile and web development charter organization at WEX. As a Full Stack Software Developer, you will be joining the WEX OTR Value Added Services team and will focus on designing, building , enhancing and maintaining our web applications interacting with our end customers and partners. Our highly autonomous team uses Agile development principles and the embedded DevOps model to deliver across the full software life cycle – from development to release to maintenance and operations.

 


How you'll make an impact 

  • Lead the design and implementation of complex backend features, distributed microservices, and asynchronous REST APIs optimized for high throughput, low latency, and fault tolerance.
  • Design event-driven data pipelines, real-time message integrations, serverless functions, and distributed caching strategies to ensure data consistency and synchronization between modern and legacy data stores.
  • Implement advanced error handling (retry patterns, circuit breakers), automated database migrations, and secure authentication/authorization flows (OAuth 2.0, JWT, RBAC).
  • Implement micro frontend (MFE) architecture and low latency user interface systems.
  • Manage cloud infrastructure via Infrastructure as Code (IaC), optimize containerized environments, and establish robust observability stacks (distributed tracing, metrics, logging).
  • Maintain excellent automated test coverage (unit, integration, load testing), drive performance profiling, and foster team growth through code reviews, pair programming, and technical guidance.

Experience you will bring

  • 5+ years of professional software development experience, including 3+ years with high-level backend languages (e.g., Python, Go, Java), frontend development (Angular) and 2+ years scaling production distributed systems.
  • Strong command of microservices communication, event streaming/message brokers, containerization, and /event-sourcing concepts.
  • Hands-on experience with major cloud ecosystems (serverless compute, managed storage, IAM), IaC tools, and secure API design principles.
  • Exceptional analytical and communication skills, with a demonstrated ability to take absolute ownership of technical initiatives and lead alignment discussions in agile environments.

Preferred Qualifications

  • Experience bridging modern cloud architectures with legacy database infrastructure.
  • Experience optimizing automated CI/CD pipelines, high-availability setups, and disaster recovery planning.
  • Familiarity with advanced telemetry dashboards (Prometheus/Grafana) and performance profiling tools.

Skills Required

  • 5+ years of professional software development experience
  • 3+ years of experience with backend languages such as Python, Go, or Java
  • Experience with frontend development using Angular
  • 2+ years of experience scaling production distributed systems
  • Strong understanding of microservices communication, event streaming, message brokers, containerization, and event sourcing
  • Hands-on experience with cloud ecosystems, serverless compute, managed storage, IAM, Infrastructure as Code, and secure API design
  • Exceptional analytical and communication skills
  • Ability to own technical initiatives and lead alignment discussions in Agile environments
  • Experience bridging modern cloud architectures with legacy database infrastructure
  • Experience optimizing automated CI/CD pipelines, high-availability environments, and disaster recovery planning
  • Familiarity with Prometheus, Grafana, telemetry dashboards, and performance profiling tools

WEX Inc. Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about WEX Inc. and has not been reviewed or approved by WEX Inc..

  • Leave & Time Off Breadth — Leave offerings are portrayed as a standout, with generous PTO and additional paid time for volunteering. Time-off flexibility is also positioned as a meaningful part of the overall rewards experience.
  • Retirement Support — Retirement benefits are presented as strong, including a 401(k) match that is described as competitive. This element appears to materially strengthen the total rewards package even when cash compensation feels less compelling.
  • Strong & Reliable Incentives — Variable compensation is sometimes framed positively through bonuses and uncapped earning potential in sales-oriented roles. Stock options are also cited as an additional reward component that can improve perceived total compensation.

WEX Inc. Insights

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The Company
HQ: Portland, ME
4,900 Employees
Year Founded: 1983

What We Do

We simplify complex payment systems for fleets, corporate payments, and healthcare—unlocking insights, opportunities, and efficiencies to give you greater control of your business. Powered by the belief that complex payment systems can be made simple, WEX (NYSE: WEX) is a leading financial technology service provider across a wide spectrum of sectors, including fleet, travel and healthcare. WEX operates in more than 10 countries and in more than 20 currencies through approximately 4,900 associates around the world. WEX fleet cards offer approximately 14 million vehicles exceptional payment security and control; our travel and corporate solutions business processes over $35 billion of purchase volume annually; and the WEX Health financial technology platform helps 343,000 employers and more than 28 million consumers better manage healthcare expenses.

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