Sigma Software Group logo
Sigma Software Group

We support enterprises, product houses, and startups with custom software solutions development and IT consulting.

Middle Full Stack Engineer, Frontend Focus

Frontend EngineerSoftware EngineerFull TimeRemoteSeniorTeam 1,001-5,000Since 2002H1B No SponsorCompany SiteLinkedIn

Location

Brazil

Posted

7 days ago

Salary

0

Seniority

Senior

Job Description

Middle Full Stack Engineer, Frontend Focus

Sigma Software Group

• Projetar, desenvolver e implementar sistemas distribuídos em larga escala para garantir escalabilidade, baixa latência e tolerância a falhas • Desenvolver e manter recursos front-end usando React JS • Implementar APIs e soluções orientadas a eventos para atender aos requisitos do sistema • Criar e executar testes unitários, testes de API, testes de regressão e testes de desempenho • Otimizar soluções para escalabilidade, confiabilidade e alto desempenho • Colaborar estreitamente com equipes multifuncionais para resolver incidentes de produção

Job Requirements

  • Pelo menos 4 anos de experiência em desenvolvimento de software com JavaScript e programação orientada a objetos
  • Forte experiência com frameworks frontend como React JS
  • Experiência prática com Java em ambientes de produção
  • Forte compreensão dos princípios de OOP, padrões de design, algoritmos e estruturas de dados
  • Experiência na construção de aplicações web em múltiplas camadas e REST APIs
  • Experiência prática em ambientes Linux/Unix
  • Conhecimento prático de plataformas em nuvem (AWS, Google Cloud ou Azure)
  • Familiaridade com bancos de dados relacionais e NoSQL (HBase, Cassandra, MongoDB, Redshift)

Benefits

  • Flexibilidade no formato de trabalho — remoto, onsite, ou híbrido
  • Acesso a projetos desafiadores
  • Oportunidades de crescimento profissional

Related Job Pages

More Frontend Engineer Jobs

Dev Technology logo

M365 Front-end Developer, Web Publisher

Dev Technology

Dev Technology is a growing IT company with an employee-centric culture that works on mission-critical projects for the federal government. We partner with our federal customers to deliver technology services and solutions, and to drive our client’s missions forward through innovation. We use Agile and DevSecOps principles to provide services including application development, biometrics and identity management, cloud and infrastructure optimization, IT and legacy modernization, and data management.

Full TimeRemoteTeam 201-500

Role Description We are seeking a mid-level M365 Front-End Developer / Web Publisher to support Operations and Maintenance activities for a component of a federal agency. This role supports internal and external websites using Microsoft 365, SharePoint Online, Drupal, and related technologies. This is a full-time position with a standard work schedule of 9:45 a.m. – 6:00 p.m. Eastern Time, Monday through Friday. The selected candidate will join a collaborative team of developers, analysts/testers, and web publishers supporting mission-critical government websites and applications. What You'll Be Doing - Provide development, operations, and maintenance support for SharePoint Online (M365) intranet environments - Support requirements gathering, documentation, and customer demonstrations - Publish and maintain content on public-facing (Drupal) and intranet (M365) websites - Provide testing support for monthly release deployments, including unit, regression, and accessibility testing - Support short turnaround publishing requests in a deadline-driven environment - Participate in an on-call rotation (~1 week per month) to provide after-hours emergency publishing support (approximately 4–5 calls per month) - Troubleshoot site issues in coordination with platform engineers and Microsoft support - Monitor Microsoft Message Center for platform updates and changes - Define and validate acceptance criteria for website features - Provide solution recommendations during team and client meetings - Collaborate with external agencies on U.S. Web Design System (USWDS) features and releases - Maintain compliance with Section 508 accessibility requirements Qualifications - Bachelor’s degree in a related field (or equivalent combination of education and relevant experience) - 1–3 years of experience designing, building, maintaining, and publishing business or government websites - 3–5 years of experience working with Microsoft 365 platforms, including SharePoint Online - Experience with responsive website design and Section 508 accessibility standards - Experience gathering and documenting business and technical requirements - Experience publishing content to public and intranet sites (Drupal CMS experience preferred) - Experience supporting structured testing activities (unit, regression, accessibility) - Proficiency with HTML, CSS, and JavaScript (JQuery, Bootstrap, etc.) - Experience with SharePoint Online and Power Platform (including Power Automate) - Strong troubleshooting and analytical skills across platforms and systems - Ability to work the required Eastern Time Zone schedule - Familiarity with U.S. Web Design System (USWDS) - Experience with Adobe Creative Suite for image editing - Experience supporting branded government websites - Experience designing pages and layouts for large branded sites under short deadlines - Strong background building prototypes, wireframes, and visualizations to help clients articulate design requirements - Deep understanding of color theory, typography, and layout - Experience applying UI/UX design principles to your work from page layouts to entire site designs - Strong written and verbal communication skills - Ability to communicate effectively with technical and non-technical stakeholders - Strong attention to detail - Customer-focused mindset - Ability to manage multiple priorities in a fast-paced environment - Ability to work independently and as part of a team - Must be able to provide examples of your website design work Requirements - Bachelor’s degree in the humanities with strong work experience in a technical field preferred - Experience redesigning large websites a plus - M365 certification(s) desired - Google UX Design Certification is a plus - Drupal CMS experience preferred Benefits - Generous and flexible time-off policy - Flexible work schedules and telework options, including remote work availability for eligible projects - Career development opportunities including a mentorship program, technical and management training through Dev University, hands-on learning through DevLab, tuition reimbursement, and paid training opportunities - Industry-leading benefits including a choice of two health plans that include dental and vision, flexible spending account, commuter benefits, life insurance, and more - 401K matching with a 5% matching contribution - Regular team and company social events including our annual party, happy hours, fitness challenges, and more - A focus on community engagement including company-wide support activities, employer match for donations, and time off for volunteer efforts

United States
Sofka Technologies logo

Arquitecto/a de soluciones, NestJS, TypeScript, AWS

Sofka Technologies

To transform people’s lives being the most trusted technology partner

Full TimeRemoteTeam 1,001-5,000Since 2013H1B No Sponsor

• Liderar la estrategia técnica y diseñar arquitecturas distribuidas desde cero • Garantizar que nuestra infraestructura soporte un crecimiento exponencial • Traducir la visión de negocio en ecosistemas de software robustos, seguros y altamente escalables

Ecuador
TEKsystems logo

Senior Front-End Developer

TEKsystems

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia.

Full TimeRemoteTeam 10,001H1B No Sponsor

Role Description Bring your technical expertise, passion, and curiosity to a creative and energetic team that builds innovative digital experiences for our clients. As a Senior Front-End Developer, you'll work closely with every part of One North. You'll partner with industry-leading strategists and designers, build alongside architects and developers, and help shape the work from kickoff to launch. In an increasingly competitive digital market, our developers are given the space to invent, problem solve, explore, fix, and create. The Senior Front-End Developer will ideally be based in the Chicago area for a light hybrid onsite/remote work model, but we are open to remote locations across the U.S. and Canada. Itching to extend and build upon your passion for digital craft? You found the right place. Key Responsibilities - Craft beautiful, useful end-user experiences while engineering for performance, accessibility, and maintainability. - Bring expert-level command of the tools, processes, and approaches behind world-class front-end work. - Demonstrate genuine appreciation for UX/UI and creative design principles and translate design intent into pixel-considered builds. - Collaborate with multi-disciplinary teammates to deliver strategic solutions to our clients' challenges. - Act as the technical lead on front-end projects, providing thoughtful guidance, code review, and mentorship. - Contribute to and help evolve our internal standards, component patterns, and engineering practices. Qualifications - 3 or more years of experience, ideally in an agency or consulting environment. - Advanced practitioner of HTML, CSS, and JavaScript using current best practices. - Strong proficiency with TypeScript. Comfortable in a typed codebase and able to model complex data well. - Significant production experience with React and Next.js. - Bespoke CSS/SCSS fluency. Comfortable architecting styles from scratch without leaning on Tailwind or other utility frameworks. - Experience designing, building, and consuming component libraries and design systems. - Deep proficiency with Figma and the broader Figma product suite (Figma Design, Dev Mode, FigJam, variables, libraries). - Ability to build resilient, responsive sites that deliver consistent experiences across screen sizes, devices, and browsers. - Demonstrated ability to meet WCAG 2.2 accessibility standards. - Solid grasp of SEO fundamentals, especially semantic markup and Core Web Vitals. - Hands-on experience with headless CMSs (Contentful, Sanity, Contentstack, or similar). - Comfortable integrating third-party libraries and SDKs to meet project requirements. - Confident with Git workflows, branching strategies, and code review. - Experience with JavaScript animation libraries (GSAP, Framer Motion, Three.js, etc.). Working with AI Tools We expect our Senior developers to have hands-on experience with AI-assisted development tools (Copilot, Cursor, Claude Code, etc.) and a clear point of view on where they help and where they hurt. It's equally important that you can do excellent work without them. AI accelerates good engineers, and the fundamentals still matter. We're looking for people who reach for AI as one tool among many. Soft Skills - Effective communicator who genuinely enjoys collaboration. - Sharp eye for detail and high personal standards around the work. - Professional curiosity, with a habit of staying current on where the industry is heading. - Engaged in best practices, standards, and the broader front-end community. Job Type & Location This is a Permanent position based out of Chicago, IL. Pay and Benefits The pay range for this position is $91,700.00 - $137,500.00/yr. We reserve the right to pay above or below the posted wage based on factors unrelated to sex, race, or any other protected classification. - Medical, dental & vision. - 401(k)/Roth. - Insurance (Basic/Supplemental Life & AD&D). - Short and long-term disability. - Health & Dependent Care Spending Accounts (HSA & DCFSA). - Transportation benefits. - Employee Assistance Program. - Tuition Assistance. - Time Off/Leave (PTO, Paid Family Leave). Workplace Type This is a fully remote position. Application Deadline This position is anticipated to close on Jun 3, 2026.

United States + 1 moreAll locations: United States | Canada
$91.7K - $137.5K / year
CSG logo

Software Development Engineer I, React UI

CSG

CSG delivers innovative customer engagement solutions that help you acquire, monetize, engage and retain customers.

Full TimeRemoteTeam 5,001-10,000Since 1982H1B Sponsor

• Design, develop, test, and maintain the Ascendon Invision Application • Collaborate with the Ascendon API teams to create efficient and reliable software solutions • Ensure software solutions meet project requirements and industry standards • Troubleshoot issues and optimize code • Stay updated with emerging technologies

Brazil