{"id":3175494,"url":"https://alion.io/job/puzzle-senior-software-engineer-remote-latam","title":"Senior Software Engineer - Remote Latam","company":{"id":4418158,"name":"Puzzle","domain":"puzzle.tech","url":"https://alion.io/company/puzzle-6","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_regions","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":["AR","BR","CO","MX","AI","AG","AW","BS","BB","BZ","BM","BO","VG","BQ","KY","CL","CR","CW","DM","DO","EC","SV","FK","GF","GD","GP","GT","GY","HT","HN","JM","MQ","MS","NI","PA","PY","PE","PR","KN","LC"],"hiring_countries_total":48,"salary":null,"salary_estimate":{"min_usd":46000,"max_usd":103000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":19},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"ASP.NET Core","optional":false},{"name":"Blazor","optional":false},{"name":"C#","optional":false},{"name":"Claude","optional":false},{"name":"Git","optional":false},{"name":"GitHub","optional":false},{"name":"Azure","optional":true},{"name":"CI/CD","optional":true},{"name":"Claude Code","optional":true},{"name":"Copilot","optional":true},{"name":"LLM","optional":true},{"name":"OpenAI","optional":true},{"name":"RAG","optional":true}],"status":"live","first_seen_at":"2026-10-23T16:41:54Z","employer_posted_date":"2026-10-23","last_verified_at":"2026-10-24T16:18:10Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Location: Remote | LATAM\nEmployment Type: Full-Time\nOverview\nWe are seeking aSoftware Engineer IV with 10+ years of professional software development experience to design and build high-impact tools that improve how our SaaS platform is configured, implemented, validated, and delivered to customers.\nThis is a highly technical, hands-on role focused on solving complex engineering problems and creating scalable tools for both internal implementation teams and customers. The engineer will work on tools that help implementation teams configure and manage the product, as well as client-facing capabilities that enable customers to validate and prepare their data before it is handed over for implementation.\nA key focus of the role will be performance at scale, including designing and optimizing applications that work with very large datasets-potentially 100+ million records. The successful candidate must be comfortable reasoning about database performance, application architecture, data processing, scalability, and system efficiency at this level. AI-assisted development is an important part of how we work. Claude is our approved internal AI coding tool, and this role will use AI to accelerate implementation, testing, refactoring, debugging, and documentation. However, AI is a development accelerator-not a substitute for engineering judgment. You will be responsible for defining the problem, creating clear specifications, validating AI-generated output, and owning the quality of the final solution.\nThis role is ideal for an engineer who combines deep technical expertise, architectural thinking, strong hands-on development skills, and a genuine passion for software engineering.\nWhat You’ll Build\nYou will design and develop tools that directly improve the efficiency, quality, and scalability of our SaaS implementation process.\nExamples include:\nInternal implementation tools that help teams configure, manage, and deploy the product more efficiently.\n\nClient-facing data validation tools that allow customers to identify and resolve data issues before submitting data for implementation.\n\nTools and services that reduce manual implementation effort and improve operational efficiency.\n\nScalable applications and services capable of processing and working with very large datasets.\n\nTechnical capabilities that support a high volume of customer implementations and go-live activities.\n\nEngineering solutions that can be adopted broadly across internal teams and customers.\n\nKey Responsibilities\nArchitecture & Software Engineering\nLead the design and implementation of complex tools, features, services, and technical initiatives across the SaaS platform.\n\nDesign scalable, reliable, and maintainable applications using C#, .NET,ASP.NETMVC, and Blazor.\n\nMake architectural and technical decisions that support long-term scalability, performance, maintainability, and reliability.\n\nDesign and develop APIs, services, integrations, and distributed application components.\n\nApply sound software engineering principles, including SOLID principles, design patterns, separation of concerns, and maintainable architecture.\n\nEvaluate technical approaches and select solutions based on business requirements, system constraints, performance, and long-term maintainability.\n\nTranslate clearly defined product and business requirements into robust technical designs and implementations.\n\nPartner with Product and implementation stakeholders to clarify requirements and identify the best technical approach without taking ownership of product management responsibilities.\n\nLarge-Scale Data & Performance\nDesign and optimize applications that operate against very large datasets, including datasets exceeding 100 million records.\n\nIdentify and resolve database, application, API, and architectural performance bottlenecks.\n\nDesign efficient data access, processing, querying, and transformation strategies.\n\nAnalyze system behavior under high data volumes and identify opportunities for significant performance improvements.\n\nDevelop solutions that remain responsive, reliable, and scalable as data volumes and customer usage increase.\n\nUse profiling, monitoring, benchmarking, and other engineering techniques to validate performance improvements.\n\nBalance performance optimization with maintainability, reliability, and development velocity.\n\nAI-Assisted Development\nUse Claude, the organization’s approved AI coding assistant, to accelerate development and engineering workflows.\n\nApply AI to appropriate development activities, including coding, refactoring, debugging, test generation, documentation, and technical exploration.\n\nCreate clear technical specifications, acceptance criteria, and implementation requirements that provide AI coding tools with sufficient context.\n\nReview and validate AI-generated code for correctness, security, performance, maintainability, and architectural fit.\n\nUse independent engineering judgment to determine when AI-generated solutions require modification, rejection, or deeper technical investigation.\n\nHelp establish effective team practices for AI-assisted development while maintaining appropriate human review and accountability.\n\nContinuously evaluate how AI can improve engineering efficiency without compromising software quality.\n\nTechnical Leadership Mindset\nAct as a senior technical authority for complex engineering and architectural challenges.\n\nProvide technical guidance and mentorship to other engineers.\n\nConduct code reviews and promote high standards for software quality and maintainability.\n\nIdentify opportunities to improve engineering practices, tooling, architecture, and development efficiency.\n\nParticipate in technical planning, design discussions, backlog refinement, and implementation planning.\n\nCommunicate technical trade-offs and recommendations clearly to engineering, product, implementation, and business stakeholders.\n\nTake ownership of technical problems from initial discovery through implementation and production delivery.\n\nRequired Qualifications\n10+ years of professional software development experience.\n\nDemonstrated experience operating at a senior, staff, principal, or architect-level capacity, owning complex technical decisions.\n\nStrong professional experience with C# and .NET.\n\nStrong experience developing modern web applications and services using ASP.NET MVC and/or Blazor.\n\nProven experience designing and developing scalable SaaS applications or enterprise software.\n\nDemonstrated experience working with very large datasets, including applications or systems handling tens or hundreds of millions of records.\n\nStrong understanding of database performance, data access patterns, query optimization, application performance, and scalable system design.\n\nExperience designing and developing APIs and distributed services.\n\nStrong understanding of software architecture, design patterns, SOLID principles, and maintainable application design.\n\nExperience diagnosing complex performance, scalability, and reliability problems.\n\nExperience with Git and modern software development workflows.\n\nExperience using AI coding assistants, preferably Claude or comparable agentic coding tools.\n\nAn active personal GitHub profile or public software repository is required. The repository should demonstrate genuine software development experience, technical curiosity, passion for engineering, or meaningful open-source/side-project work. Quality and substance are more important than the number of repositories.\n\nStrong written and verbal communication skills.\n\nBachelor’s degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.\n\nPreferred Qualifications\nExperience building tools used by internal implementation, operations, or professional services teams.\n\nExperience building customer-facing data validation, configuration, onboarding, or implementation tools.\n\nExperience working with SaaS products that support complex customer implementations.\n\nExperience designing systems for high-volume data processing or data-intensive applications.\n\nExperience with cloud platforms, particularly Microsoft Azure.\n\nExperience with CI/CD and automated deployment practices.\n\nExperience with containerized or distributed application environments.\n\nExperience with observability, monitoring, profiling, and production performance analysis.\n\nExperience establishing or improving AI-assisted engineering workflows.\n\nExperience using Claude Code, GitHub Copilot, or other AI coding agents in professional development environments.\n\nExposure to AI-enabled product features or technologies such as Azure OpenAI, RAG, or LLM-based applications.\n\nWhat Success Looks Like\nSuccess in this role goes beyond delivering individual features. The engineer will be expected to create tools that produce measurable improvements across the organization.\nWithin the role, success may include:\nHigh adoption: Internal implementation teams actively use the tools you build.\n\nMeasurable efficiency gains: Tools reduce manual work, implementation time, or operational overhead.\n\nBetter data quality: Client-facing validation tools help customers identify and resolve data issues earlier in the implementation process.\n\nScalable performance: Applications continue to perform effectively as data volumes reach 100+ million records and customer usage grows.\n\nCustomer impact: Tools contribute directly to smoother and faster customer implementations and go-lives.\n\nTechnical excellence: Solutions are maintainable, well-architected, tested, and built to scale.\n\nEngineering leverage: AI-assisted development and improved engineering practices allow the team to deliver higher-quality solutions faster.\n\nWhat We’re Looking For\nArchitectural Thinker: You understand how individual technical decisions affect the broader system and can design solutions with scalability and long-term maintainability in mind.\nHands-On Engineer: You are comfortable working directly in the codebase and solving complex technical problems rather than operating exclusively at a conceptual level.\nScale-Oriented: You have experience building and optimizing systems that work with very large datasets and understand the engineering challenges that emerge at scale.\nTool Builder: You enjoy creating practical tools that make other people’s work faster, easier, and more reliable.\nAI-Leveraged: You use AI coding tools as a force multiplier while maintaining complete ownership of the engineering outcome.\nTechnical Leader: You can make difficult technical decisions, explain tradeoffs, and raise the technical capabilities of the team.\nProblem Solver: You enjoy taking ambiguous or complex engineering problems and turning them into practical, scalable solutions.\nEngineering-Driven: You maintain a strong personal interest in software development and demonstrate that passion through your work, personal projects, open-source contributions, or GitHub activity.\nCustomer-Focused: You understand that the ultimate measure of a technical solution is the value it creates for customers and the teams using it.\nJoin Us and Enjoy These Perks!\nCompetitive Salary: Earn a USD salary that matches your skills and experience.\nPaid Time Off: Generous PTO to support your work-life balance and recharge.\nHealth Insurance Subsidy: Financial assistance to support your healthcare coverage.\nAnnual Salary Reviews: Structured annual evaluations to recognize and reward\nperformance.\nPaid Training & Certifications: Continuous support for professional growth and upskilling.\nReady to put your puzzle-solving skills to the test? Join our team today!\nLinkedIn: Puzzle\nInstagram: @ puzzle.tech\n_","description_format":"text","description_chars":11664,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Health insurance","Professional development"],"hiring_locations":[{"name":"Argentina","iso":"AR","kind":"region"},{"name":"Brazil","iso":"BR","kind":"country"},{"name":"Colombia","iso":"CO","kind":"region"},{"name":"Mexico","iso":"MX","kind":"region"},{"name":"Anguilla","iso":"AI","kind":"region"},{"name":"Antigua and 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