Senior Software Engineer (Golang/TypeScript/React)

Lever, Inc.; France; À distance; EUR 50 000 - 64 000; Plein temps

Avantages offerts par ce poste

Fully remote

Independent contractor

Global collaboration

Exposure to Go/TypeScript stack

Résumé du poste

Lever, Inc. is seeking a Senior Software Engineer (Golang/TypeScript/React) based in France to build a data-intensive platform used by major organisations. You will own features end-to-end, from concept and architecture to development, testing, and production.

The role blends Go backend services with React/TypeScript frontend and emphasizes observability and scalable systems. You will influence technical strategy, engineering standards, and development practices within a collaborative,

Qualifications

• Production-grade software design, development, testing, and operations experience.
• Advanced proficiency in Golang for backend services.
• Frontend experience with React and TypeScript; build reusable components.
• Strong SQL skills with MariaDB or similar relational databases.
• Docker experience and containerized deployment.
• CI/CD pipelines experience; GitLab CI a plus.
• Observability tooling such as Prometheus and Grafana.
• Experience with AWS and cloud infrastructure.

Responsabilités

• Design, develop, test, maintain, and enhance Golang microservices and React/TypeScript frontend applications.
• Own features end-to-end from ideation and technical design through deployment and improvement.
• Build performant, accessible customer-facing interfaces using React, TypeScript, and design systems.
• Develop backend services in Go and deploy via Docker-based environments.
• Make architectural decisions balancing existing systems, new tech, scalability, performance, and maintainability.
• Improve performance, reliability, monitoring, and observability.
• Maintain high engineering standards with clean-code, reviews, and documentation.
• Collaborate with product managers and stakeholders to deliver effective technical solutions.
• Contribute to automation, processes, and new technologies for engineering efficiency.
• Work with large-scale financial datasets and systems serving data to users.
• Troubleshoot issues and improve production reliability.
• Share knowledge and promote continuous learning.
• Support CI/CD, infrastructure, and observability initiatives.

Description du poste

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer (Golang/TypeScript/React) based in France.

As a Senior Software Engineer, you will help build and evolve a data-intensive platform used by major organisations to make informed business decisions. You will own features end-to-end, from initial concept and architecture through development, testing, and production. The role combines backend engineering in Go with modern frontend development using React and TypeScript. You will contribute to highly scalable systems that collect, process, validate, and serve large volumes of financial data. Beyond feature delivery, you will influence technical strategy, engineering standards, observability, and development practices. You will work within a collaborative, multidisciplinary team where technical ownership, continuous learning, and meaningful impact are highly valued.

Accountabilities:

• Design, develop, test, maintain, and enhance Golang microservices and React/TypeScript frontend applications.

• Take full ownership of features from ideation and technical design through implementation, deployment, and ongoing improvement.

• Build performant, accessible, and polished customer-facing interfaces using React, TypeScript, and established design systems.

• Develop reliable backend services and web application backends using Go and deploy applications through Docker-based environments.

• Make architectural and technical decisions while balancing existing systems, new technologies, scalability, performance, and maintainability.

• Improve application and service performance, reliability, monitoring, and observability.

• Establish and maintain high engineering standards through clean-code practices, code reviews, documentation, and consistent development patterns.

• Collaborate with product managers, engineers, and stakeholders across the organisation to understand business requirements and deliver effective technical solutions.

• Contribute to automation, process improvements, and new technologies that improve the efficiency and quality of engineering teams and business operations.

• Work with large-scale financial datasets and contribute to systems that collect, process, validate, and serve data to users.

• Troubleshoot technical issues and contribute to the continuous reliability and improvement of production systems.

• Share technical knowledge, communicate complex concepts clearly to technical and non-technical stakeholders, and contribute to a culture of continuous learning.

• Support and contribute to CI/CD, infrastructure, and observability initiatives where appropriate.

Requirements:

• Strong professional experience designing, developing, testing, and operating production-grade software systems.

• Advanced proficiency in Golang, including experience building backend services and working with concurrent or distributed systems.

• Strong frontend development experience with React and TypeScript, including the ability to build reusable, component-based applications.

• Strong SQL skills and experience working with relational databases such as MariaDB or comparable technologies.

• Solid understanding of clean-code principles, software design practices, and idiomatic Go and TypeScript development.

• Experience with Docker and containerised application deployment.

• Ability to design and maintain performant, scalable, and reliable software systems.

• Strong problem-solving skills and the ability to understand and work effectively within complex technical and business domains.

• Excellent communication skills, with the ability to explain complex technical subjects to both technical and non-technical audiences.

• Ability to take ownership of features and deliver solutions from concept through production.

• Curiosity and willingness to learn new technologies, understand unfamiliar business domains, and continuously develop technical skills.

• Experience with CI/CD pipelines, particularly GitLab CI, is an advantage.

• Familiarity with observability technologies such as Prometheus and Grafana is desirable.

• Experience using AI tools to improve engineering productivity or productionising AI solutions is a plus.

• Familiarity with Material UI, Airflow, Python, or Terraform is beneficial.

• Experience working with AWS and cloud-based infrastructure is an advantage.

Benefits:

• Fully remote working arrangement from Multiple locations.

• Flexible remote working environment with collaboration across international teams.

• Monthly compensation of USD 5,000–6,500, based on the stated contractor arrangement and experience.

• Opportunity to work as an independent contractor on a Business-to-Consultant basis.

• Opportunity to contribute to a data-driven platform used by major global organisations and financial institutions.

• Exposure to modern technologies including Go, TypeScript, React, AWS, Docker, SQL, CI/CD, and observability tooling.

• Opportunity to influence technical direction, architecture, engineering standards, and development practices.

• Collaborative environment with a multidisciplinary technology team and opportunities for knowledge sharing.

• Meaningful technical ownership, with responsibility for features from conception through production.

• Opportunities to develop skills in large-scale financial data, distributed systems, cloud technologies, and AI-enabled engineering.

• Please note that the contractor arrangement does not include paid time off or sick pay.

How Jobgether works:

We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.

We appreciate your interest and wish you the best!