Lead Developer

Design, develop, evaluate, and maintain responsive React applications, portals, and embeddable widget experiences that can be integrated into partner platforms. Build secure, versioned, well-documented REST APIs and microservices using C# and .NET Core. Implement business workflows and integrations across embedded finance providers, partner systems, enterprise APIs, webhooks, file exchanges, and AWS services. Work with PostgreSQL and MongoDB to design schemas, queries, indexes, migrations, and reliable data-access patterns. Contribute to AWS-native workloads running on EKS, Lambda, and batch/container services, with Step Functions or equivalent orchestration where appropriate. Write production-grade unit, component, integration, contract, and end-to-end tests using the relevant stack, including Jest for React and NUnit for .NET. Build reusable UI components and libraries, translate designs into accessible code, and optimize browser performance, responsiveness, and maintainability. Participate in API and event-contract design, code reviews, pairing, technical documentation, architecture discussions, and secure coding reviews. Contribute to infrastructure and delivery automation using CI/CD, Docker, Kubernetes, and infrastructure-as-code practices. Instrument services and user journeys with meaningful logs, metrics, traces, and alerts; troubleshoot defects and production issues across application layers. Collaborate with QA to improve automation, test data, environment readiness, and release confidence, and with SRE/operations teams to improve runbooks and recovery procedures. 5+ years building and supporting production software applications. Strong C# and .NET Core skills, including REST APIs, dependency injection, asynchronous programming, testing, and secure coding. Professional experience with ReactJS, modern JavaScript/TypeScript, component architecture, state management, HTML, and CSS. Hands-on experience with PostgreSQL and MongoDB or comparable relational and document databases. Experience with microservices, API-first development, third-party integration, and resilient distributed-system patterns. Experience building applications on AWS and working with containers, Docker, and Kubernetes/EKS. Ability to write automated unit and integration tests and diagnose issues across UI, API, data, and cloud layers. Experience with Git-based workflows and CI/CD tools such as GitHub Actions, Jenkins, GitLab CI, or comparable platforms. Ability to translate business and technical requirements into maintainable, well-documented implementations. Preferred Qualifications Experience with embeddable widgets, micro-frontends, white-label applications, or multi-tenant SaaS platforms. Experience with AWS Lambda, Step Functions, ECS batch workloads, S3, KMS, certificate management, or secrets management. Exposure to Python services or data pipelines and Python unittest. Experience with Terraform or Pulumi and GitOps tools such as Argo CD. Experience with Splunk, DataDog, Grafana, CloudWatch, distributed tracing, and production incident support. Financial services, payments, embedded finance, lending, or banking-domain experience. Discover some of the global benefits that empower our people to become the best version of themselves: Finance: Competitive salary package, share plan, company performance bonuses, value-based recognition awards, referral bonus; Career Development: Career coaching, global career opportunities, non-linear career paths, internal development programmes for management and technical leadership; Learning Opportunities: Complex projects, rotations, internal tech communities, training, certifications, coaching, online learning platforms subscriptions, pass-it-on sessions, workshops, conferences; Work-Life Balance: Hybrid work and flexible working hours, employee assistance programme; Health: Global internal wellbeing programme, access to wellbeing apps; Community: Global internal tech communities, hobby clubs and interest groups, inclusion and diversity programmes, events and celebrations. Additional Employee Requirements Participation in both internal meetings and external meetings via video calls, as necessary. Ability to go into corporate or client offices to work onsite, as necessary. Prolonged periods of remaining stationary at a desk and working on a computer, as necessary. Ability to bend, kneel, crouch, and reach overhead, as necessary. Hand-eye coordination necessary to operate computers and various pieces of office equipment, as necessary. Vision abilities including close vision, toleration of fluorescent lighting, and adjusting focus, as necessary. For positions that require business travel and/or event attendance, ability to lift 25 lbs, as necessary. For positions that require business travel and/or event attendance, a valid driver’s license and acceptable driving record are required, as driving is an essential job function. *If requested, reasonable accommodations will be made to enable employees requiring accommodations to perform the essential functions of their jobs, absent undue hardship. USA Benefits (Full time roles only, does not apply to contractor positions) Robust healthcare and benefits including Medical, Dental, vision, Disability coverage, and various other benefit options Flexible Spending Accounts (Medical, Transit, and Dependent Care) Employer Paid Life Insurance and AD&D Coverages Health Savings account paired with our low-cost High Deductible Medical Plan 401(k) Safe Harbor Retirement plan with employer match with immediately vest At Endava, we’re committed to creating an open, inclusive, and respectful environment where everyone feels safe, valued, and empowered to be their best. We welcome applications from people of all backgrounds, experiences, and perspectives—because we know that inclusive teams help us deliver smarter, more innovative solutions for our customers. Hiring decisions are based on merit, skills, qualifications, and potential. If you need adjustments or support during the recruitment process, please let us know.