Senior OutSystems Engineer – Clinical Application Platform Stabilization
We are seeking a Senior OutSystems Engineer to lead platform stabilization and migration readiness efforts for a large-scale clinical application supporting 130+ locations nationwide. This is a highly hands‑on, high‑impact role focused on improving system performance, reducing risk, and preparing the platform for an eventual transition to a custom‑built solution.
This engagement is expected to begin late April or early May and run approximately 6 weeks, with strong potential for extension based on performance.
* Stabilize & Modernize Architecture – Assess tightly coupled module architecture and reduce dependencies; identify and execute module extraction strategies to improve scalability; minimize risk and blast radius of ongoing changes without disrupting workflows.
* Optimize Database & System Performance – Improve database performance by optimizing queries and implementing indexing strategies; design and execute migration of binary large objects out of the database; replace inefficient polling with event‑driven or conditional patterns; implement backpressure controls for integrations impacting system performance.
* Reduce Error Noise & Improve Observability – Identify and remediate recurring error patterns masking real issues; refactor exception handling and client‑side lifecycle violations; establish a clean, monitorable baseline for system health.
* Build a Real Release Pipeline – Implement gated release processes with approvals and controls; ensure non‑production environments support meaningful regression testing.
* Manage Platform Capacity & Licensing – Audit platform usage and identify optimization opportunities; remove unused or redundant components; define governance for capacity‑impacting changes; extend platform headroom without impacting functionality.
* Prepare for Migration to Custom Platform – Document all integrations including triggers, data contracts, and failure modes; capture business logic embedded within the platform; identify core business logic vs platform‑generated components; advise on migration sequencing and risk across workflows.
What You Bring – Required Experience
* 5+ years building and maintaining enterprise‑scale OutSystems applications
* Deep experience with OutSystems 11, Service Studio, and Lifetime API
* Proven success optimizing performance including query tuning and data model improvements
* Experience refactoring complex, tightly coupled systems into modular architectures
* Strong SQL Server performance tuning experience including execution plans and indexing
* Hands‑on experience with CI/CD pipelines and deployment automation within OutSystems
* Strong problem‑solving skills in live production environments
Preferred Experience
* Experience supporting or leading OutSystems to custom platform migrations
* Background in healthcare or clinical systems with understanding of critical workflows
* Familiarity with HIPAA considerations and secure data handling
* Experience with license optimization and application object management
* Knowledge of integration patterns across scheduling, e‑signature, or CRM systems
* Collaborate closely with internal engineering and PM leadership
* Operate with high autonomy and ownership of technical decisions
* Work within a live production environment supporting critical clinical operations
* Balance speed and precision while minimizing risk to end users
This is a unique opportunity to step into a complex, high‑visibility system, make immediate impact, and shape the foundation for a next‑generation platform.
Senior Software Engineer – Luxury Resale Marketplace
We are looking for a Senior Software Engineer to join a high‑impact team focused on building and scaling systems that power pricing, payments, and merchandising within a luxury resale marketplace. This role sits at the intersection of backend engineering and product development, supporting both customer‑facing applications and internal tools used by operators and business teams.
You will collaborate closely with product managers, designers, and engineering leadership to deliver reliable, scalable, and high‑performing systems that directly influence key business initiatives.
* Design, build, and maintain scalable backend services and internal tooling
* Contribute to user‑facing applications that support listing, enrichment, and merchandising workflows
* Write clean, performant, and testable code in a production environment
* Participate in architectural decisions and help shape the future of the platform
* Collaborate cross‑functionally with product, design, and engineering stakeholders
* Review pull requests and provide constructive feedback to peers
* Pair program and support team collaboration and onboarding
* Deploy code to production with a strong focus on reliability and quality
* Leverage observability tools, metrics, and incident learnings to improve system performance and stability
What We’re Looking For
* 3–5+ years of software engineering experience
* Strong communication skills and ability to collaborate with cross‑functional teams
* Experience building production‑ready, scalable, and secure systems
* Solid understanding of backend development and modern web applications
* Familiarity with RESTful APIs, Git, TypeScript, and common development tools
* Experience or interest in JVM‑based services (Java/Kotlin)
* Understanding of event‑driven architectures and streaming systems (e.g., Kafka)
* Knowledge of database fundamentals and API design (GraphQL or similar)
* Passion for testing, code quality, and continuous improvement
* Ability to contribute to technical direction and architectural decisions
* Bachelor’s degree in Computer Science or equivalent practical experience
Nice to Have
* Experience with JVM services in production environments
* Experience with modern frontend technologies (React, TypeScript, HTML, CSS)
* Experience integrating LLMs or AI APIs into applications or internal tools
* Experience building microservices and working across distributed systems
* Background in eCommerce platforms
* Familiarity with CMS platforms (e.g., Prismic)
* Experience with monitoring, dashboards, and incident response
Intelligence Architect – Real‑World AI Systems
Conquer AI is hiring an Intelligence Architect to help us design and deliver real‑world AI systems for enterprise clients in Brazil. This is not a research‑only role, and it is not a strategy‑only role.
We are looking for a strong software engineer who can work directly with clients, run technical discovery, shape use cases, and then build the solution from POC through MVP and Phase 1 delivery.
Think forward deployed engineer. A hands‑on builder who can sit with business stakeholders, understand how work actually happens, and turn that into practical AI systems.
* Strong software engineering background
* Experience with RAG, LLMs, machine learning, and AI application development
* Strong hands‑on skills in Python and Node.js
* Ability to design, build, and deploy production‑ready systems
* Confident working directly with clients and cross‑functional stakeholders
* Able to move from problem definition to technical architecture to delivery
* Strong communication, ownership, and execution skills
What you’ll do
* Work closely with clients to uncover high‑value AI opportunities
* Lead discovery sessions and translate business problems into technical solutions
* Build POCs, MVPs, and early production systems
* Design workflows that combine retrieval, reasoning, automation, and human‑in‑the‑loop review
* Operate as a trusted technical lead across both client‑facing and delivery work
* Help ensure what gets built is usable, scalable, and grounded in real workflows
This role is a fit for you if
* You are a builder first
* You can speak to executives, operators, and engineers without losing the thread
* You enjoy solving messy workflow problems with elegant technical systems
* You want to work on high‑impact AI delivery, not internal experiments
FreeBSD PMC Framework Engineer
We are building a team to work on the FreeBSD Performance Monitoring Counter (PMC) framework, including hwmon, libpmc, and pmcstat. The project includes development, testing, and cooperation with the upstream FreeBSD open‑source community to integrate new features into FreeBSD.
* Develop and improve parts of the FreeBSD PMC framework (hwmon, libpmc, pmcstat)
* Investigate and fix performance and monitoring issues in the FreeBSD kernel
* Work with the upstream FreeBSD community and integrate changes into mainline FreeBSD
* Support performance monitoring tools for modern AMD (Zen era) hardware
* Participate in code reviews and technical discussions
Mandatory Skills
* 7 years of experience in relevant technical areas
* Strong knowledge of FreeBSD kernel architecture and internals
* Strong understanding of x86 microarchitecture
* Very good knowledge of performance monitoring on modern x86 systems
Nice‑to‑Have Skills
* Previous contributions to upstream FreeBSD kernel code
* Experience with AMD Zen performance monitoring technologies (PMC, IBS, etc.)
Senior Software Engineer – Remote (Brazil)
We’re hiring a kind, curious, and experienced Senior Software Engineer (Full Stack) who enjoys solving challenging problems and building impactful user experiences. You’ll join a collaborative and supportive engineering team focused on making it seamless and compelling for users to engage with our platform.
This is a fully remote role reporting to the Engineering Manager of Customer Experience, with strong opportunities for technical leadership, mentorship, and personal growth.
* Write high‑quality, scalable, and testable code that drives key business initiatives
* Contribute hands‑on while also helping shape the technical direction of the team
* Build and maintain features using modern technologies such as: Elixir, Ruby, React, TypeScript, GraphQL, Kafka, AWS (Lambda)
* Participate in architecture and design decisions
* Review pull requests and provide constructive feedback
* Collaborate closely with teammates through pair programming
* Deploy and monitor user‑facing features in production
* Continuously learn and explore new technologies and patterns
What We’re Looking For
* 5+ years of professional software development experience
* Strong proficiency in Elixir or Ruby
* Hands‑on experience with React and its ecosystem (Node.js, npm)
* Familiarity with RESTful APIs, Git and version control workflows, TypeScript, understanding of event‑driven architectures, databases, and GraphQL
* A problem‑solving mindset with a focus on user impact
* Interest in e‑commerce, retail, or building sustainable digital ecosystems
Nice to Have
* Experience with Kafka (event streaming)
* Experience transitioning from monoliths to microservices architectures
Why Join Us
* Work with a supportive and collaborative team that values growth
* Have real influence on technical decisions and product direction
* Be part of a mission‑driven environment focused on innovation and sustainability
* Continuous opportunities for learning, mentorship, and career development
Senior Go Engineer – Fintech Start‑Up
Realm is partnered with a high‑growth fintech building who have recently secured a huge Series A round and is looking to grow its team. They’re developing a payment fraud detection platform to rapidly identify and prevent fraudulent transactions. The platform will automatically detect suspicious activity and potential perpetrators, significantly reducing response times.
A backend engineer with exceptional Go programming skills (min 2 years of commercial Go experience) and a strong foundation in databases, gRPC, and scalable system architecture.
* Develop and maintain scalable backend systems for chargeback management, integrating with credit card, banking, and merchant platforms.
* Design and implement robust microservices architecture, leveraging reusable frameworks and libraries.
* Optimize system performance and security by leading code improvement, CI/CD enhancement, and technology upgrades.
* Drive platform innovation by identifying improvement areas and owning feature development from inception to deployment.
* 6+ years of software development experience, with at least 2 years in Go production environments.
* Proven experience in platform architecture and development.
* Strong leadership and mentoring skills, including leading complex projects.
* Excellent problem‑solving abilities and deep technical knowledge.
* Effective communication and collaboration skills.
Tech stack
* Go, DynamoDB, gRPC, Docker, SNS/Kafka (not exhaustive)
Senior Software Engineer (L3) – Healthcare Tech Nonprofit
We’re hiring on behalf of a mission‑driven healthcare technology nonprofit whose platform has reached tens of millions of patients in low‑income communities across the US. They’re growing the team that builds the SaaS product hundreds of safety‑net clinics rely on every day to manage patients and run patient engagement programs.
This is a senior IC role with shared team‑lead responsibilities – owning complex full‑stack features end‑to‑end, mentoring mid‑level engineers, and shaping architecture across a Rails monolith and React SPA.
The Stack
* Ruby on Rails, React, TypeScript, PostgreSQL, Google Cloud, Sidekiq
What You’ll Own
* Driving the technical direction of key Applications platform features
* Mentoring L2 engineers and leading technical design discussions
* Contributing to architectural decisions across the monolith and SPA
* Sharing on‑call duties and helping evolve engineering standards
What We’re Looking For
* 8+ years full‑stack experience, with deep Rails + modern React fluency
* A track record of owning complex features from design through production
* Advanced SQL and a genuinely analytical, evidence‑led mindset
* Proven ability to mentor and influence technical direction
* Excellent async communication – this is a fully distributed team
Bonus Points
* Healthcare tech, social services, or other practitioner‑facing domains
* Multi‑tenant data models, RBAC, accessibility‑aware UI
* Experience scaling a Rails monolith with a React SPA frontend
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