WEXWEXUS

Lead implementation of platform focusing on UIs, APIs, data integrations, and architectural roadmaps. | 6+ years software engineering with cloud platform expertise, automation, security compliance, and leadership skills. | This is a remote position; however, the candidate must reside within 30 miles of one of the following locations: Portland, ME; Minnesota, MN and Dallas, TX. About the Team/Role We are seeking a Lead Software Engineer in the WEX Corporate Payments Engineering organization. This role will be a top-tier software engineer to help develop, drive, and execute implementation in an engineering team for the WEX EnCompass platform applications. EnCompass is the customer facing user experience and technical integrations for Corporate Payments customers, including UIs, APIs, webhooks, and data streams. How you’ll make an impact: Help develop, drive and execute a long-term vision and strategy for the Corporate Payments cross-cutting and core services. Collaboratively define and implement a comprehensive architectural roadmap for the EnCompass platform, aligning with business objectives, industry best practices, and other Corporate Payments teams. Foster a culture of innovation, collaboration, empowerment, and continuous learning within the engineering teams. Continuously challenge the status quo and implement mechanisms to reduce time-to-market using efficient engineering methods. Collaborate with other Corporate Payments engineering teams to reuse development practices and components to reduce duplication. Experience you'll bring: 6+ years of experience in software engineering Expertise in rapid development and deployment of internal and external services using cloud computing platforms such as AWS or Azure. Experience writing high-quality automation, including well-formed unit, component, and integration tests and an in-depth understanding of the test pyramid. Strong understanding of security and compliance requirements in cloud and data environments. Excellent leadership, team-building, and dynamic decision-making skills. Ability to deal with ambiguity and thrive in a fast-paced, dynamic environment. Excellent verbal and written communication skills. Preferred Qualifications: Experience building applications in the finance space, such as credit card products, accounts receivables/payables, etc. Experience working with geographically distributed teams The base pay range represents the anticipated low and high end of the pay range for this position. Actual pay rates will vary and will be based on various factors, such as your qualifications, skills, competencies, and proficiency for the role. Base pay is one component of WEX's total compensation package. Most sales positions are eligible for commission under the terms of an applicable plan. Non-sales roles are typically eligible for a quarterly or annual bonus based on their role and applicable plan. WEX's comprehensive and market competitive benefits are designed to support your personal and professional well-being. Benefits include health, dental and vision insurances, retirement savings plan, paid time off, health savings account, flexible spending accounts, life insurance, disability insurance, tuition reimbursement, and more. For more information, check out the "About Us" section. Pay Range: $140,600.00 - $173,100.00

Lead design and implementation of complex backend services with focus on migration to REST architecture and ensuring system reliability and security. | 7+ years experience in Java backend development, distributed systems, observability, and ability to work in US without sponsorship. | This is a remote position; however, the candidate must reside within 30 miles of one of the following locations: Boston, MA; San Francisco Bay Area, CA; Dallas, TX; Salt Lake City, UT; Seattle, WA; and Portland, ME About the Team/ Role Our backend team is in the middle of a large-scale platform modernization: incrementally retiring a legacy SOAP/Informix monolith in favor of a REST-based, event-driven architecture on PostgreSQL and Redis, applied through the Strangler pattern so that customer-facing services keep running without interruption. We're looking for a Senior Software Engineer, AI-Augmented Backend who brings deep, hands-on technical depth to this effort. This is an individual-contributor role built for someone who wants to own hard problems end to end — designing the systems, writing the critical code, and raising the bar for engineering quality across the team. If you enjoy untangling legacy systems, designing clean APIs and event pipelines, and caring about correctness in a payments environment where mistakes have real financial and compliance consequences, this role is for you. How you’ll make an impact Own the design and implementation of complex backend services in Java and Spring Boot, from architecture through production rollout and operability. Drive the incremental migration of legacy functionality toward REST using the Strangler pattern. Design event-driven data flows (CDC pipelines, schema evolution, idempotent consumers) that keep distributed systems consistent under load. Make and document consequential architecture decisions: API contracts, data models, consistency and transactional boundaries, failure modes, and rollback strategy. Practice spec-driven development: define clear, machine-readable contracts and specifications (e.g., OpenAPI, schema definitions, RFC 9457 problem formats) before implementation, so that designs are unambiguous, reviewable, and consumable by both humans and AI agents. Use AI-assisted development tooling effectively and responsibly — leveraging coding assistants and agentic workflows to accelerate delivery while owning correctness, review, and the security implications of generated code. Own service availability and reliability: design for high availability, define and defend SLOs/error budgets, plan for graceful degradation and failover, and participate in on-call to keep critical payment paths healthy. Build observability in from the start, not as an afterthought — instrument services with metrics, distributed tracing, and structured logging (OpenTelemetry / Micrometer), and use that telemetry to drive alerting, SLOs, and incident diagnosis. Set the standard for code quality, testing, and operational readiness, and raise that standard through code review, design review, and technical mentorship of other engineers. Build for a payments environment: handle sensitive cardholder data responsibly, design with PCI DSS requirements in mind, and bake in audit logging and least-privilege access from the start. Diagnose and resolve performance and reliability issues across the stack — query optimization, caching strategy, indexing, connection management, and latency under real production traffic. Partner with product, platform, and other engineering teams to break large initiatives into safe, shippable increments. Tech You'll Work With Java • Spring Boot • PostgreSQL • Informix • Redis • Apache Kafka • Debezium (CDC) • Avro / schema registry • AWS (EKS) • HashiCorp Vault • OpenTelemetry / Micrometer / Prometheus / Grafana • OpenAPI / spec-driven development • AI-assisted development tooling • REST API design • Domain-Driven Design • SLOs / on-call • CI/CD Experience you’ll bring 7+ years of professional software engineering experience, with a strong track record of building and operating backend services in production. Deep expertise in Java and the Spring / Spring Boot ecosystem. Strong command of relational databases — data modeling, query optimization, indexing, and transaction management. Demonstrated experience designing and evolving RESTful APIs (versioning, error semantics, idempotency, backward compatibility). Hands-on experience with distributed and/or event-driven systems (e.g., Kafka or similar messaging/streaming platforms). Solid grounding in system design: you can reason about consistency, fault tolerance, scalability, and operational trade-offs, and communicate those trade-offs clearly. Strong observability practice — you instrument services with metrics, distributed tracing, and structured logging using OpenTelemetry, Prometheus, and Grafana, and use that telemetry to define alerts, diagnose incidents, and understand production behavior. Experience operating high-availability services: defining and meeting SLOs, designing for failover and graceful degradation, and supporting production systems through on-call. Comfort with spec-driven development — designing against explicit contracts (OpenAPI, schemas, well-defined error formats) before writing code. Effective, judicious use of AI-assisted development tools (spec driven development, skills), with clear ownership of the correctness, quality, and security of the resulting code A demonstrated security mindset — you think about data protection, safe credential handling, and injection / input-validation risks by default. Strong written and verbal communication; able to influence technical direction across a team without formal authority. Working knowledge of Domain-Driven Design (aggregates, bounded contexts, application services). Experience with AWS and Kubernetes (EKS), HashiCorp Vault, and Redis-compatible caching at scale. Must be authorized to work in the United States without sponsorship. Preferred Qualifications Experience modernizing legacy systems, particularly with the Strangler pattern or comparable incremental-migration approaches. Familiarity with Change Data Capture (e.g., Debezium) and schema-registry-backed event pipelines (Avro/Protobuf). Experience in payments, fintech, or other regulated, high-compliance domains (PCI DSS exposure a plus). Experience with legacy migrations off Informix or comparable enterprise RDBMS platforms. Performance / load testing experience (e.g., k6) and capacity planning. Proven track record with AI-driven development platforms such as Claude Code, Cursor, Augment, and GitHub Copilot. The base pay range represents the anticipated low and high end of the pay range for this position. Actual pay rates will vary and will be based on various factors, such as your qualifications, skills, competencies, and proficiency for the role. Base pay is one component of WEX's total compensation package. Most sales positions are eligible for commission under the terms of an applicable plan. Non-sales roles are typically eligible for a quarterly or annual bonus based on their role and applicable plan. WEX's comprehensive and market competitive benefits are designed to support your personal and professional well-being. Benefits include health, dental and vision insurances, retirement savings plan, paid time off, health savings account, flexible spending accounts, life insurance, disability insurance, tuition reimbursement, and more. For more information, check out the "About Us" section. Pay Range: $121,500.00 - $145,500.00

Lead design and development of complex systems and AI workflows while mentoring senior engineers and coordinating multi-team programs. | Bachelor's degree and 8-10 years of software engineering experience with expert proficiency in multiple programming languages and modern architectures. | About the Team & Role Are you a technical artisan who thrives in collaborative environments and gets excited about solving the right problems, the right way? Do you believe in breaking down silos and fostering a culture of shared responsibility? Then this role is for you! In today's software development landscape, collaboration, E2E accountability, problem solving and streamlined workflows are key to achieving efficiency and delivering high-quality solutions that solve customer problems and generate business outcomes. We believe in the power of integrated engineering, where development, quality, and agility skills blend together throughout the solution delivery pipeline. In this role, you'll be a champion for this approach, fostering a culture of shared ownership and breaking down silos to ensure a smooth and efficient flow of innovation to customers. How you’ll make an impact Collaborate with stakeholders throughout the SDLC to translate complex business requirements into high-quality, reliable, cost-effective, and maintainable solutions that solve customer problems and generate business outcomes. Lead the design and development of major systems or constellations of smaller systems with a focus on Continuous Delivery principles and practices. Champion integrated engineering practices within the organization, defining "Golden Paths" for service communication and cross-team technical standards. Architect and implement advanced AI workflows, including multi-agent orchestration, state management, and memory persistence to solve high-value business problems. Solve architectural bottlenecks that cross team boundaries and review designs from other teams for consistency, scalability, and long-term supportability. Coordinate large-scale programs across many dependent teams, independently creating project plans and managing materializing risks with a high degree of confidence in delivery. Research and implement new ways to keep teams efficient, staying ahead of industry trends and Agile practices at both the team and enterprise level. Act as a talent multiplier by mentoring senior engineers, leading by example in code reviews, and fostering a culture of technical excellence. Serve as the "Adult in the Room" during crises, providing guidance to resolve issues, determining root causes, and implementing systemic changes to prevent repeat occurrences. Core Skills: Programming/Software Development: As a Staff Engineer, you are an expert across multiple tech stacks and move freely between them to solve complex hurdles. You set the organizational standard for clean, maintainable code and drive the development of autonomous agentic systems. You are the primary architect for complex systems, ensuring that software is designed not just for immediate features, but for long-term scalability, resilience, and cost-efficiency. Testing: You drive the organizational strategy for quality by organizing and overseeing a library of regression tests as a shared resource. You balance risk, effort, and coverage by directing regular reviews of environment-specific test suites. You collate feedback from end-users and historical defects to assessment where the most systemic risk resides, focusing engineering efforts accordingly to ensure a high-quality user experience. Additional Valuable Skills: Systems Integration: You lead the integration of complex, cross-functional systems and third-party services. You are responsible for identifying and resolving integration bottlenecks that impact multiple product lines or dependent teams. Your role ensures that disparate components align architecturally to maintain a cohesive, resilient, and high-performing ecosystem. Release and Deployment Management: You define and evolve the deployment strategy to ensure rapid, safe, and consistent delivery across the organization. By automating complex release workflows, you reduce manual effort and increase reliability across the program, managing the critical path for major initiatives spanning multiple dependent teams. Methods and Tools: You define the technical vision for our tooling landscape, researching and adopting cutting-edge tools that improve decision-making and automate repetitive tasks. This ensures data-driven development and organizational efficiency, keeping the engineering team current in a rapidly evolving field. Experience you'll bring Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience). Minimum of 8-10 years of experience in software engineering and delivery, with a proven track record of leading multi-team initiatives. Expert proficiency in multiple programming languages and modern architectural patterns (Microservices, Event-Driven, etc.). Hands-on experience building with LLMs and designing multi-agent agentic workflows (handling state, memory, and tool calls). Strong understanding of continuous delivery principles and mastery of automation tools (e.g., Jenkins, GitLab CI/CD, etc.). Exceptional problem-solving and analytical skills, with the ability to navigate high degrees of ambiguity. Excellent communication and negotiation skills, with the ability to tailor messaging for a wide variety of audiences, including senior leadership. Ability to work independently and as a strategic lead within a cross-functional technical team. The base pay range represents the anticipated low and high end of the pay range for this position. Actual pay rates will vary and will be based on various factors, such as your qualifications, skills, competencies, and proficiency for the role. Base pay is one component of WEX's total compensation package. Most sales positions are eligible for commission under the terms of an applicable plan. Non-sales roles are typically eligible for a quarterly or annual bonus based on their role and applicable plan. WEX's comprehensive and market competitive benefits are designed to support your personal and professional well-being. Benefits include health, dental and vision insurances, retirement savings plan, paid time off, health savings account, flexible spending accounts, life insurance, disability insurance, tuition reimbursement, and more. For more information, check out the "About Us" section. Pay Range: $140,600.00 - $173,100.00