Senior Software Developer .NET - Colombia

As a Senior Software Developer III on the Back End team, you operate as a technical leader within your team and across the broader engineering organization. You shape architecture and design, raise the bar on engineering quality, mentor other developers, and partner closely with cross-functional stakeholders to translate technical decisions into business value. You are equally comfortable writing code, reviewing designs, and influencing how the platform evolves.

Location: This is a fully remote position located in Colombia.

Contact

Maira Russo - Senior Talent Acquisition Partner

Core Responsibilities

Architecture, Design & Technical Direction

• Create architecture, prototypes, and design proposals that deliver near-term business value while aligning with the future-state product and platform vision.

• Influence technical direction through architecture reviews, RFCs, design discussions, and hands-on collaboration.

• Partner with senior developers, architects, and tech leads to define and execute the product/platform architecture roadmap.

• Balance delivery speed, quality, maintainability, and long-term platform health when making technical decisions.

Delivery & Engineering Excellence

• Break down large initiatives into parallelizable chunks of work that deliver incremental business value.

• Champion proposals through all phases of the SDLC, from design through production implementation.

• Contribute to improving the core product build, CI/CD pipelines, and overall SDLC.

• Troubleshoot and eliminate root causes of persistent production issues; drive reliability, observability, monitoring, and incident response.

• Keep technical documentation current and create new artifacts as needed.

Collaboration & Leadership

• Facilitate design discussions within and across teams.

• Represent the team in technical discussions with Tech Leads, Operations, Product/UX, Security, Domain SMEs, and external stakeholders.

• Act as a trusted technical leader, helping teams succeed through collaboration, influence, and shared ownership.

• Mentor other developers through design reviews, pair programming, and code reviews; contribute to raising overall engineering maturity.

• Share knowledge of new technologies and industry best practices to strengthen team-wide coding standards.

• Evaluate emerging technologies, frameworks, and cloud capabilities that could benefit the platform.

Back End Platform Responsibilities

• Design and build key features and architectural improvements for the platform, end-to-end, using modern .NET technology and architecture.

• Take initiative on complex, business-critical challenges such as third-party extensibility and real-time multi-user synchronization.

• Build and maintain services across both monolith and microservice architecture.

• Create and optimize complex SQL Server queries, stored procedures, and functions.

• Collaborate with a team of deep technical experience and strong domain knowledge; brainstorm and share ideas within an agile team of developers, testers, and a product owner.

Core Qualifications

• Degree in Computer Science, Software Engineering, or equivalent practical experience; 8+ years of professional software development experience with demonstrated impact beyond a single team.

• In-depth experience with server-side .NET and C#, including highly distributed microservice architecture.

• Proven experience designing and operating distributed, cloud-native, SaaS/multi-tenant platforms at scale, ideally on AWS.

• Strong software fundamentals: OOP, design patterns, SOLID principles, and a track record of advocating for code quality.

• Experience with test-driven development, including unit, integration, and end-to-end testing.

• Experience designing and consuming well-designed HTTP APIs (REST, GraphQL, or similar).

• Experience with both monolith applications and microservices.

• Knowledge of relational databases, such as SQL Server.

• Experience mentoring developers and influencing architectural decisions across teams.

• Strong written and verbal communication skills; comfortable operating in fast-moving environments with ambiguity and evolving requirements.

• Strong initiative to improve processes, tools, methodologies, and product quality.

Nice to Have

• Experience with container technologies such as Docker, ideally with orchestration such as Kubernetes.

• Experience with cloud providers beyond AWS (Azure, Google Cloud).

• Knowledge of accounting and auditing concepts.

• Contributions to open-source projects or a strong GitHub portfolio.

Tech Stack

• Languages & Frameworks: .NET, C#

• Cloud & Infrastructure: AWS (S3, Secrets Manager, Lambda, SQS, SNS, DynamoDB, EKS, etc.), CloudFormation, Terraform

• Data: SQL Server, AWS RDS SQL Server

• Testing & Observability: New Relic, AWS CloudWatch

• Tooling: Jira, Visual Studio, GitHub, Devin, Claude Code

Perks & Benefits