Senior Software Engineer

SuperSim

. Design, develop, and deploy LLM-based systems .

Posted 9/23/2026full-timeRemote • BrazilSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing, developing, and deploying LLM-based systems, with a strong focus on technical ownership, architectural decision-making, and performance optimization. Proven ability to lead critical initiatives and collaborate effectively across technology, product, and business teams.

Highest-signal resume keywords

LLM-Based Systems DeploymentRAG and Multi-Agent SystemsArchitectural Decision-MakingTechnical LeadershipProduction Code Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software DevelopmentLLM Fine-TuningSystem EvaluationCost OptimizationLatency ManagementReliability EngineeringData-Driven Decision MakingTechnical OwnershipEvaluation MechanismsCoding Assistance Tools

Soft Skills

Analytical AbilityResults OrientationAutonomy

Certifications & Qualifications

Degree in Computer ScienceDegree in EngineeringDegree in Mathematics

Industry Keywords

GenAI ApplicationsStartupsTechnology CompaniesLean OrganizationsPublic Technical Contributions

Tech Stack

Tools & technologies

Open Source

About the role

Key responsibilities & impact

Design, develop, and deploy LLM-based systems
Build solutions involving RAG, agents and multi-agent systems, fine-tuning, and evaluation pipelines
Scale GenAI applications from proof of concept to solutions used by real users
Monitor and optimize application cost, latency, quality, and reliability
Create systematic evaluation mechanisms, including golden datasets and approaches such as LLM-as-judge
Define guardrails and mechanisms to improve application safety and predictability
Take technical ownership of critical initiatives, making decisions and assessing architectural trade-offs
Work directly with Product and business teams to turn real-world problems into software solutions
Track the results of implemented solutions and use data to guide their evolution
Remain hands-on with implementation, maintaining a strong technical focus and staying close to the code

Requirements

What you’ll need

7+ years of experience building software, with continued technical involvement and current experience writing production code
Proven experience deploying LLM-based systems to production, in addition to using coding assistance tools
Hands-on experience with RAG, agents, fine-tuning, or LLM system evaluation
Ability to make architectural decisions and assess trade-offs involving cost, performance, latency, and reliability
Track record of technical leadership, leading, creating, or scaling critical initiatives with identifiable individual contributions
Degree in Computer Science, Engineering, Mathematics, or a related field, or a career path demonstrating a strong technical foundation
Autonomy, technical depth, analytical ability, and results orientation
Experience in startups, technology companies, or highly demanding technical environments is a plus
Experience working in lean, highly autonomous organizations is a plus
Public technical contributions, such as open-source projects, articles, talks, or engineering content, are a plus
Ability to work across technology, product, and business is a plus
Track record of career growth and increasing responsibility is a plus

Benefits

Comp & perks

Market-competitive salary
Employment under Brazil’s CLT labor regime
Annual bonus
SuperSim Flex: points-based benefits program with a choice of meal/food voucher, transportation or mobility voucher, health insurance, dental insurance, life insurance, education allowance, and TotalPass
Private pension plan
Employee stock purchase program for eligible positions
Company-subsidized training
Day off on your birthday
Weekly soccer and volleyball
Celebratory events and happy hours