Role Description As a Senior Backend C# Engineer, you will play a pivotal role in designing, building, and maintaining our high-performance, scalable backend systems. You will be a technical leader within our engineering team, driving architectural decisions, mentoring junior developers, and ensuring the delivery of clean, secure, and maintainable code. - Deliver high-quality, clean, and maintainable code as a self-directed contributor, driving features and bug resolutions to ensure successful team sprints. - Architect and make critical implementation design decisions for new backend features and components. - Develop proactive contingency plans to mitigate technical risks in high-impact, critical projects. - Analyze technical requirements and design specifications alongside the team to accurately estimate level of effort (LOE) and complexity. - Author comprehensive, clear technical documentation for new features to facilitate seamless knowledge sharing among peers. - Design, write, and execute robust unit and integration tests to guarantee high code coverage and system reliability. - Participate in an on-call rotation to promptly monitor, troubleshoot, and resolve production system incidents. - Conduct thorough peer code reviews, ensuring the team upholds code quality, architectural standards, and security. - Research and evaluate emerging technologies and framework updates to keep our tech stack modern and efficient. - Ensure all system designs and implementations strictly comply with our design libraries, internal best practices, and established coding conventions. Qualifications - Bachelor's Degree in Computer Science, Engineering, or a related field. - 6+ years of industry experience in programming large-scale SaaS products. - Experience working with C#, .NET 5+. - Strong experience working with Visual Studio. - Proficiency working with MongoDB. - Experience working with DynamoDB. - Experience working with Microservices Architecture. - Strong experience working with React and Next.js. - Experience working with PostgreSQL, SQL Server. - Advanced English Level is required for this role, as you will work with US clients. Requirements - Effective communication in English is essential to deliver the best solutions to our clients and expand your horizons. Benefits - Competitive USD salary. - 100% remote work: While you can work from anywhere, you’re always welcome to connect with teammates and grow your network at our coworking spaces across LATAM. - Paid off & national holidays: Take the time you need according to your country’s regulations while receiving your full salary. - Sick leave: Focus on your health without stress. Take the necessary time to recover and feel better. - Annual credit: Spend it on the perks you love to enhance your work-life balance. - Team-building activities: Join us for coffee breaks, tech talks, and after-work gatherings to bond with your Nortal family and feel part of our vibrant community. - Birthday off: Enjoy an extra day off during your birthday week to celebrate in style with friends and family.

• Impulsionar o desenvolvimento de sistemas de alta complexidade, garantindo a robustez do ecossistema Java em arquiteturas cloud-native. • Integrar soluções de Inteligência Artificial Generativa para o setor de seguros.

• Develop and maintain Java backend applications • Participate in the analysis and implementation of requirements related to tax and fiscal processes • Support the implementation of business rules related to the Tax Reform (IBS/CBS) • Integrate with tax systems, ERPs and other corporate applications • Develop and maintain APIs and processing routines • Support identification and correction of master data and tax inconsistencies • Participate in testing, acceptance and functional validations • Work closely with business, tax and technology teams • Contribute to continuous improvements in application performance, quality and stability

Role Description We are hiring a Senior Back End Engineer to help architect and scale the core infrastructure powering Volt's messaging platform. This role is focused on building reliable, high-throughput systems that support real-time messaging operations, onboarding workflows, compliance automation, routing intelligence, and operational visibility across providers and carriers. You will work closely with Engineering leadership, Product, Customer Operations, and Infrastructure teams to improve scalability, reliability, observability, automation, and platform performance. This is not a narrow feature-delivery role. We are looking for a senior-level builder who can think architecturally, operate independently, and contribute to long-term platform direction while still moving quickly in a startup environment. Equally important: this is a team role. Our engineering group is small, tight-knit, and genuinely collaborative. We cover for each other, give candid feedback without ego, and take real pride in raising the collective quality of the work. We're looking for someone who strengthens that culture, not someone who operates on an island. What You'll Do - Design, build, and maintain scalable back-end systems and APIs - Improve platform reliability, performance, observability, and operational efficiency - Build systems that support high-volume messaging throughput and operational workflows - Contribute to distributed systems architecture and scalability planning - Improve automation across onboarding, compliance, routing, and operational tooling - Collaborate with Product and Operations teams to translate complex workflows into scalable systems - Help improve deployment reliability, infrastructure consistency, and engineering standards - Participate in architecture reviews, technical planning, and systems design discussions - Actively support peers through code review, knowledge sharing, and filling gaps — not just owning your own surface area - Mentor engineers and contribute to technical best practices across the team - Leverage AI tooling to accelerate development, troubleshooting, debugging, automation, and documentation workflows - Contribute to long-term platform modernization and scalability initiatives AI Expectations for This Role AI is not an add-on at Volt — it's woven into how we build. We're looking for an engineer who has genuinely made the transition from traditional development practices to AI-augmented workflows, not just someone who occasionally uses Copilot. Ideally you've been part of a team or organization that successfully navigated that shift, and you can bring that experience — the patterns, the pitfalls, and the discipline — with you. - Systematic use of agentic coding workflows, not just ad hoc AI assistance - AI-assisted debugging and root-cause analysis - Infrastructure and architecture analysis with AI tooling - Automated documentation and workflow generation - AI-supported code review and refactoring - Intelligent monitoring and anomaly analysis - Faster prototyping and systems planning - Helping the broader team level up its own AI practices over time What We're Looking For - Strong experience building and scaling back-end systems in production environments - Experience designing APIs and distributed systems - Strong understanding of system performance, scalability, and reliability - Experience with cloud infrastructure and event-driven architectures - Strong troubleshooting and systems-thinking mindset - Experience with observability, monitoring, and operational tooling - Ability to operate independently and drive technical initiatives — while actively supporting and collaborating with a small, high-trust team - A collaborative, low-ego approach to peer feedback and shared ownership of quality - Comfortable working in fast-moving startup environments - Strong communication and cross-functional collaboration skills - Real, hands-on experience with AI-enabled engineering workflows and agentic coding practices — especially in an environment that has made the transition from traditional development Nice to Have - Experience with messaging, telecom, CPaaS, or high-throughput infrastructure - Experience with PostgreSQL, Redis, Kafka, SQS, or similar technologies - Familiarity with compliance-heavy or workflow-heavy systems - Experience with DevOps or infrastructure automation - Experience mentoring engineers or leading technical initiatives - Deep familiarity with agentic tooling and AI-assisted engineering at the team or org level - Experience building internal operational platforms or automation systems How We Work - Remote-first team with high ownership and accountability - Small, highly collaborative environment — everyone fills in, no one operates on an island - Fast iteration cycles and direct access to leadership - Strong builder culture with low ego and a genuine commitment to peer feedback - Bias toward action, clarity, and operational excellence - AI-forward engineering mindset, actively evolving our practices Why Volt - Opportunity to help architect and scale a rapidly growing messaging platform - High-impact role with influence across infrastructure and product direction - Ability to solve complex operational and scalability challenges - Work closely with experienced founders and technical leadership - Help build the operational backbone for modern messaging infrastructure - Join a team that genuinely invests in each other and works hard to get better together Volt Labs Inc · Remote (U.S. required) · $140,000–$165,000