About Us

Concord isn't your typical consulting firm; we are an execution company with a passion for making things happen. Our mission is to help clients enhance customer experiences, optimize operations, and revolutionize their product offerings through seamless integration, optimization, and activation of technology and data.

We are purpose-built, merging the industry’s top specialty companies to amplify our Innovation Capabilities in analytics & AI, data management & engineering, UX and digital experience, and technical platform integration, automation & security engineering.

Overview
We are looking for a seasoned Software Engineer to join an Application Modernization team. You will be a primary contributor in migrating a legacy application backlog to a modern, cloud-native architecture — spanning React/Next.js frontends, Redis-backed APIs, event-driven microservices, and Kubernetes-based deployments.

This is a remote contract open to candidates based in Argentina, Peru, Colombia, Brazil, Mexico, Ecuador, Bolivia, or Chile. You will collaborate daily with cross-functional, English-speaking teams, so professional-level English fluency is a must!

What You Will Be Doing

• Lead and contribute to the analysis, planning, and execution of legacy-to-modern-stack migrations, ensuring business logic is faithfully re-implemented and improved.
• Build performant, accessible frontends using React JS and the latest Tailwind CSS, integrating with Strapi CMS.
• Develop and maintain server-side rendered applications with Next.js on Node.js following a Test-Driven Development (TDD) approach.
• Implement and tune Redis caching layers to optimize application throughput and reduce database load.
• Design and integrate Kafka-based event streaming pipelines as part of an evolving microservices architecture.
• Containerize services and support Kubernetes deployments on-premises, with a clear migration path toward AWS EKS.
• Champion Blue/Green deployment strategies to minimize downtime and reduce release risk.
• Instrument services with Datadog and Splunk to ensure full-stack observability.
• Maintain high code quality through GitHub workflows, Snyk security gates, and thorough code reviews.
• Leverage AI-assisted development tools — GitHub Copilot and Claude Code — to accelerate delivery and promote best practices across the team.
• Collaborate with product managers, designers, and engineers in English-speaking distributed teams, contributing to technical discussions, design reviews, and written documentation.

• 5+ years of professional software engineering experience in full-stack or backend-heavy roles.
• Demonstrated history of working in English-speaking professional environments — international teams, global clients, or projects where English was the primary working language.
• Proven track record delivering production-grade applications.
• Experience in legacy modernization or large-scale re-architecture projects is strongly preferred.

• Strong proficiency in JavaScript/TypeScript across frontend and backend.
• Hands-on experience with React JS and Tailwind CSS.
• Production experience with Next.js and Node.js.
• Solid knowledge of relational databases — MySQL and/or PostgreSQL — including schema design and query optimization.
• Experience with containerization (Docker) and orchestration platforms (Kubernetes or OpenShift).
• Fluency with Git-based workflows, branching strategies, and CI/CD pipelines.
• Familiarity with TDD methodologies and automated testing (unit, integration, end-to-end).
• Working knowledge of caching strategies; Redis experience preferred.
• Understanding of event-driven architecture; Kafka experience is a plus.
• Familiarity with observability tooling such as Datadog or Splunk.
• Experience with security scanning in CI/CD pipelines (Snyk or similar).
• Professional English proficiency is required (B2 or higher). Prior professional experience working in English is a must — previous roles at international companies, English-speaking clients, or projects where English was the primary working language all qualify.

• Experience migrating from legacy server-side platforms (ColdFusion, Classic ASP, PHP 5.x, etc.).
• Hands-on experience with Strapi CMS or other headless CMS platforms.
• Familiarity with Blue/Green or Canary deployment patterns.
• Experience with Figma and design-to-code tooling.
• Active use of AI-assisted coding tools such as GitHub Copilot or Claude Code.
• AWS experience, particularly with EKS or managed container services.
• Contributions to open-source projects or a public technical portfolio.

• Type of Employment: Contract.
• Duration: 6+ months with possibility of renewal depending on business needs and performance.
• Eligible Locations: Remote — Argentina, Peru, Colombia, Brazil, Mexico, Ecuador, Bolivia, and Chile.
• Authorization: Candidates must be legally authorized to work in their country of residence. This role does not offer visa sponsorship.

***

Concord is an execution partner helping organizations drive digital transformation, modernization, and scalable technology solutions. We deliver results that solve real business challenges. We operate globally and are growing fast, shaping the future of technology. Join a team trusted by top companies to drive strategic growth and operational excellence!