Senior Software Engineer

1 semana atrás

Barueri, Brasil Lumx Tempo inteiro

About Lumx

Lumx is building the stablecoin payments stack for Latin America and beyond—API-first on/off-ramps, virtual/external accounts, wallets, and compliant FX. We deliver instant settlements and institutional-grade reliability. Backed by leading partners (including BTG Pactual), we combine product excellence with security and compliance.

The role

We’re looking for a Senior Software Engineer with advanced experience in fintech, payments, and FX to design, build, and operate existing mission-critical services that power pay-ins, pay-outs, and currency conversion (quoting, rate locks, execution, settlement). You’ll work across API design, event-driven systems, and function-orchestrated workflows, always with reliability, observability, recoverability and idempotency as first-class requirements.

What You’ll Do
  • Integrate partners fast: Ship high-quality connectors with banks, PSPs, and FX providers.
  • Own core money flows: Design and run services for pay-ins/pay-outs/FX (quoting, rate-lock, execution, netting, and settlement).
  • Raise reliability bars: Implement robust idempotency, retries/backoff, DLQs, and graceful degradation.
  • Build event-driven workflows: Orchestrate function-based workflows and long-running sagas for multi-party financial processes.
  • Model money correctly: Ensure reconciliation across entities and precise amount/rounding semantics.
  • Document & mentor: Write clear ADRs/runbooks and help level up the team through code reviews and sharing your technical knowledge.
What you bring
  • 5+ years building backend services at scale (fintech/payments/FX experience required).
  • Strong TypeScript + Node.js fundamentals; clean modular design and high-quality APIs (REST/JSON).
  • Deep understanding of event-driven architectures (queues/streams), saga patterns, and function-orchestrated flows (experience with Temporal.io is a plus).
  • Solid data fundamentals: relational modeling (PostgreSQL), transactions/consistency, and performance tuning; caching strategies.
  • Security mindset for financial systems and familiarity with regulated environments (KYC/KYB/KYT concepts).
Nice to have
  • Experience with FX & rate-locking, treasury, reconciliation at multi-entity scale.
  • Knowledge of local rails (PIX, ACH), cards, and crypto on/off-ramps.
  • Previous experience with compliance audit processes (e.g. SOC2)
How we work
  • Quality first: strong test coverage, thoughtful code reviews, security by design.
  • Ownership with context: autonomy, transparency, and tight feedback loops.
  • Very few meetings, prioritizing deep focus time blocks.
  • Competitive compensation + potential equity
  • Remote-friendly with flexible hours (Americas time zones)
  • Local holidays and supportive time-off policy
Seniority level
  • Mid-Senior level
Employment type
  • Full-time
Job function
  • Engineering and Information Technology
  • Industries: Software Development
#J-18808-Ljbffr

  • Senior Software/Mobile Engineer

    1 semana atrás

    Barueri, Brasil Truelogic Software Tempo inteiro

    Senior Software/Mobile Engineer (Angular/React Native) - Software Join to apply for the Senior Software/Mobile Engineer (Angular/React Native) - Software role at Truelogic Software About Truelogic: At Truelogic we are a leading provider of nearshore staff augmentation services headquartered in New York. For over two decades, we’ve been delivering...

  • Software Engineer Senior

    3 semanas atrás

    Barueri, São Paulo, Brasil Equifax Tempo inteiro

    Projetar, desenvolver e operar aplicativos em grande escala em toda a pilha de engenharia; Aplicar práticas modernas de desenvolvimento de software (computação sem servidor, arquitetura de microsserviços, CI/CD, infraestrutura como código, etc.); Participar de discussões sobre o roteiro tecnológico e a arquitetura para transformar os requisitos e a...

  • Senior Devops Engineer

    Há 7 dias

    Barueri, Brasil Truelogic Software Tempo inteiro

    Join to apply for the Senior DevOps Engineer (GCP/AWS) - Marketing (Latam) role at Truelogic Software2 days ago Be among the first 25 applicantsJoin to apply for the Senior DevOps Engineer (GCP/AWS) - Marketing (Latam) role at Truelogic SoftwareAbout TruelogicAt Truelogic we are a leading provider of nearshore staff augmentation services headquartered in New...

  • Senior Devops Engineer

    Há 7 dias

    Barueri, Brasil Truelogic Software Tempo inteiro

    Senior DevOps Engineer - U.S. Mortgage Leader (Brazil)Join to apply for the Senior DevOps Engineer - U.S. Mortgage Leader (Brazil) role at Truelogic Software.About TruelogicAt Truelogic, we are a leading provider of nearshore staff augmentation services headquartered in New York.For over two decades, we've been delivering top-tier technology solutions to...

  • Software Engineer

    Há 7 dias

    Barueri, Brasil Canonical Tempo inteiro

    Join or sign in to find your next jobJoin to apply for the Software Engineer - OpenStack role at Canonical3 days ago Be among the first 25 applicantsJoin to apply for the Software Engineer - OpenStack role at CanonicalCanonical is a leading provider of open source software and operating systems to the global enterprise and technology markets.Our platform,...

  • Software Application Support Engineer

    1 semana atrás

    Barueri, Brasil Markem-Imaje Tempo inteiro

    Join to apply for the Software Application Support Engineer role at Markem-Imaje 10 hours ago Be among the first 25 applicants Join to apply for the Software Application Support Engineer role at Markem-Imaje Markem-Imaje is a trusted world manufacturer of product identification and traceability solutions, offering a full line of reliable and innovative...

  • Software Application Support Engineer

    Há 7 dias

    Barueri, Brasil Markem-Imaje Tempo inteiro

    Join to apply for the Software Application Support Engineer role at Markem-Imaje10 hours ago Be among the first 25 applicantsJoin to apply for the Software Application Support Engineer role at Markem-ImajeMarkem-Imaje is a trusted world manufacturer of product identification and traceability solutions, offering a full line of reliable and innovative inkjet,...

  • Senior Software Engineer

    4 semanas atrás

    Barueri, São Paulo, Brasil Asenium Consulting Tempo inteiro

    Asenium is seeking a highly skilled Senior Kotlin Backend Engineer to join our client's global data engineering team. Location: Brazil (Mandatory location, 100% Remote)Contract: 6 months (Freelance)Start Date: ASAPKey Responsibilities:Develop scalable backend components in Kotlin with a strong focus on performance and maintainability.Design and integrate...

  • Software Application Support Engineer

    4 semanas atrás

    Barueri, São Paulo, Brasil Markem-Imaje Tempo inteiro

    Join to apply for the Software Application Support Engineer role at Markem-Imaje 10 hours ago Be among the first 25 applicants Join to apply for the Software Application Support Engineer role at Markem-Imaje Markem-Imaje is a trusted world manufacturer of product identification and traceability solutions, offering a full line of reliable and innovative...

  • Software Engineer Wanted

    1 semana atrás

    Barueri, São Paulo, Brasil beBeeSoftware Tempo inteiro US$80.000 - US$130.000

    Software Engineering Expert WantedWe're seeking a highly skilled software engineer with expertise in Python programming to join our team. As a software engineer, you'll be responsible for designing and developing complex software applications, collaborating with cross-functional teams, and ensuring the delivery of high-quality products that meet customer...