AWS Backend Senior Software Developer III *

Caseware; Medellín; Remote; COP 120,000,000 - 200,000,000; Full time

Benefits offered by this job

Contract indefinido (indefinite-term)

Prepaid Medicine

Life insurance

Internet allowance

Home office stipend

Remote work 100%

Job summary

Caseware, a leading global Fintech software provider, seeks an experienced senior engineer to shape its cloud-native SaaS platform. You will collaborate with senior engineers to drive architecture, define roadmaps, and ensure high-quality, scalable solutions across distributed systems.

In this remote Colombia role, you’ll mentor teams, implement AI-assisted development practices, and contribute to open API design while upholding security and reliability standards.

Qualifications

• 8+ years of professional software development experience with impact beyond a single team.
• Experience designing and operating distributed, cloud-native SaaS platforms at scale, ideally on AWS.
• Strong fundamentals in OOP, design patterns, SOLID, and code quality.
• Experience with agentic‑AI software development practices.
• Experience designing and consuming well‑designed HTTP APIs (REST/GraphQL).
• Experience mentoring developers and influencing architectural decisions across teams.
• Excellent written and verbal communication; English at least B2.

Responsibilities

• Create architecture, prototypes, and design proposals that deliver near‑term business value while aligning with the product vision.
• Influence technical direction through architecture reviews and design discussions.
• Partner with senior engineers to define and execute architecture roadmap across the platform.
• Champion reliable, maintainable code; balance speed with long‑term health of the system.
• Mentor engineers through reviews and AI‑assisted development practices.

Skills

Distributed systems

Cloud-native architecture

AWS expertise

OOP & SOLID

Agentic-AI practices

HTTP APIs (REST/GraphQL)

Mentoring developers

English (B2)

Education

BS in Computer Science or equivalent

Tools

AWS

OpenAPI

GitHub Actions

CI/CD

Job description

Caseware is one of Canada's original Fintech companies, having led the global audit and accounting software industry for over 30 years, with more than 500,000 users across 130 countries and available in 16 different languages. While you might not have heard of us (yet) over 36,000 accounting and audit professionals list Caseware as a skill on their LinkedIn profiles.

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

Contact

Maira Russo - Senior Talent Acquisition Partner

Core Responsibilities

• 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.
• 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.
• 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, joint agentic‑AI sessions, and feedback on skills, prompts, and other agent inputs; contribute to raising overall engineering maturity.
• Share knowledge of new technologies and industry best practices.
• Evaluate emerging technologies, frameworks, and cloud capabilities that could benefit the platform.

AI-Augmented Development Expectations

• Use AI‑assisted development tools — inline completion, conversational assistants, and agentic workflows — as a standard part of your daily workflow.
• Critically evaluate and take ownership of all AI‑generated output before it ships — verify correctness, security, and alignment with architecture and team standards.
• Identify opportunities for agentic automation within your team, and lead the rollout of new AI‑assisted workflows and tooling.
• Mentor other developers on effective, responsible use of AI‑assisted development tools.
• Help establish team‑level practices and guardrails for using AI tools safely and effectively.
• Build and refine feedback loops that improve the team's collective use of AI tooling over time.

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.
• 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 agentic‑AI software development practices.
• Experience designing and consuming well‑designed HTTP APIs (REST, GraphQL, or similar).
• 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. English high B2.
• Strong initiative to improve processes, tools, methodologies, and product quality.

Department‑Specific Responsibilities

• Build and operate the AWS AgentCore Gateway layer and the capabilities it hosts — MCP tool targets today, extending to inbound access, agent‑to‑agent (HTTP) targets, and inference/model‑routing targets as those capabilities come online.
• Develop and maintain the target registry and configuration model that lets customer firms register their own MCP servers for their agents to call, covering tenant isolation, credential handling, allowlisting and egress control, and containment when a third‑party endpoint fails or misbehaves.
• Build the inbound surface that exposes Caseware capability to external agents and clients over MCP and adjacent protocols, including authentication, scope enforcement, and rate limiting.
• Build and operate the on‑premise connectivity path, including session lifecycle, request correlation, and recovery for long‑lived sessions between cloud‑hosted agents and on‑premise desktop clients.
• Implement session and scope propagation from agent to gateway to target to backend, so authorization is correct and auditable at every hop.
• Design and evolve OpenAPI contracts for gateway targets, and the target runtimes that implement them, keeping conventions consistent regardless of what a target fronts.
• Implement outbound authorization for gateway targets (IAM/SigV4, OAuth, credential providers) so access to each target type is securely and consistently controlled.
• Maintain versioning of target contracts as they evolve, so consuming teams and customers are not broken by change.
• Contribute to end‑to‑end tracing and SLOs for gateway traffic, and build the observability that lets you and other teams detect and debug failures anywhere in the pipeline.
• Mentor other developers joining the team, and contribute to technical direction for the integration layer through RFCs and design reviews.

Department‑Specific Qualifications

• Experience with MCP (Model Context Protocol) for LLM agents.
• Experience building or operating a multi‑tenant gateway or API platform: several traffic patterns behind one access point, tenant isolation, per‑tenant credentials and secrets, quotas, and abuse protection.
• Experience integrating with third‑party or untrusted endpoints, with a clear point of view on failure containment and limiting blast radius.
• Experience with authorization and scope propagation across multi‑hop service boundaries — carrying and checking identity and permissions through the full pipeline, not just authenticating once.
• Experience designing and operating persistent‑connection or streaming architectures, including session management, recovery, and message correlation, along with related protocol‑level concerns (timeout/retry semantics, backpressure, idempotency, graceful degradation).

Nice to Have

• Experience with AWS Bedrock, AgentCore, or other managed agent/LLM orchestration platforms.
• Experience with LLM provider routing and gateway patterns (multi‑provider endpoints, model‑based routing) or agent‑to‑agent (A2A) communication protocols.
• Experience building developer‑or partner‑facing platform surfaces that external parties integrate against.
• Experience integrating cloud services with on‑premise or embedded clients (webviews, desktop apps).
• Familiarity with Infrastructure as Code (CDK, CloudFormation, or Terraform).
• Experience operating systems in regulated or compliance‑heavy domains.

Tech Stack

• Backend & Platform: Node.js/TypeScript
• Cloud & Infrastructure: AWS Lambda, AWS Bedrock, AWS AgentCore Gateway (or similar third‑party platforms/tools)
• Connectivity: Persistent‑connection relay architecture for on‑premise integrations
• Contracts & Protocols: OpenAPI, Model Context Protocol (MCP), A2UI
• Developer Tooling: GitHub, GitHub Actions

Perks & Benefits

• ¨Contrato a termino Indefinido¨ with all the legal benefits
• Prepaid Medicine
• Life insurance and funeral assistance
• Internet allowance
• Home office stipend
• Competitive compensation — above the market average
• 100% remote work environment and an excellent work‑life balance
• Opportunity to work for a growing global SaaS leader company
• A culture that promotes independence, innovation, trust, and accountability
• Open space to be creative, innovative and strategize for the future
• Mentorship by highly experienced professional
• Budget for training, we want you to grow
• 5 Personal Time Off days per year
• Sick Leave Top up to total 100% of salary paid by the employer from Day 3 to 90.
• Recognition Award, additional paid time off in recognition of the corresponding year of service
• Upgrade vacation starting at 5 years of service
• AI‑first environment: Be part of an AI‑first engineering organization that embraces modern tools, automation, and AI‑driven ways of working

What's in it for you: