Senior Fullstack Software Engineer

Formulatrix Indonesia; Salatiga ꦱꦭꦠꦶꦒ; On-site; IDR 200.000.000 - 300.000.000; Full time

Job summary

Une entreprise innovante dans le secteur de l'automatisation de laboratoire recherche un Senior Full Stack Software Engineer. Le candidat idéal sera responsable du développement d'un produit SaaS basé sur le cloud, intégrant des technologies modernes et fournissant des solutions techniques pour des applications critiques. Vous travaillerez dans un environnement dynamique, axé sur l'innovation et la qualité, en collaboration avec une équipe internationale.

Qualifications

• Au moins 4 ans d'expérience en développement backend en C# ou Java.
• Expérience pratique en développement frontend avec React.js.
• Doit démontrer des compétences en architecture des systèmes et en OOP.

Responsibilities

• Définir et conduire la vision technique pour un produit SaaS basé sur le cloud.
• Architecturer et développer des systèmes distribués en C#/.NET.
• Collaborer avec les équipes produit, UX, données et opérations pour affiner les exigences.

Skills

Développement en C#

Développement frontend avec React

SQL

Architecture de systèmes

Gestion de projet

Communication en anglais

Pensée logique

Education

Baccalauréat en informatique

Ingénierie électronique ou équivalent

Job description

We are looking for a top-notch Senior Full Stack Software Engineer to join our Software Team in Indonesia. You will be hands-on, with Microsoft C#, React JS and SQL server to implement components of our software products. The position requires an extremely hands-on person able to motivate and lead the teams through development projects in a fast-paced, aggressive growth, international business environment. Candidates should possess strong software development and problem-solving skills. Candidates should also exhibit a high degree of ownership and pride in their code and a commitment to releasing quality software on time. Candidates must work well independently, and with worldwide team members.

Job Descriptions

• Define and drive the technical vision for a data-intensive, cloud-native SaaS product, translating strategic goals into actionable architecture and a clear delivery roadmap.
• Architect, develop, and evolve a distributed back-end system (currently in C#/.NET) and a modern single-page front end (currently in React.js), while continuously evaluating and integrating alternative technologies where they provide meaningful advantages.
• Design robust data-ingestion and processing pipelines, integrate multiple external APIs and batch feeds with automated validation, reconciliation, and alerting to ensure data accuracy and freshness.
• Lead the development of core domain algorithms and services (e.g., pricing, optimization, search, geospatial), focusing on deterministic correctness, low-latency performance, and horizontal scalability.
• Establish and promote engineering best practices such as clean architecture, SOLID principles, test-driven development, code reviews, and secure coding standards to maintain high software quality.
• Own DevOps and SRE disciplines, including containerization, infrastructure-as-code, CI/CD automation, observability, performance tuning, and post-incident reviews to support SLIs/SLOs and zero-downtime deployments.
• Ensure compliance with security and regulatory requirements (e.g., data privacy laws, payment or industry-specific standards), embedding them throughout the software development lifecycle and cloud infrastructure.
• Collaborate cross-functionally with Product, UX, Data, and Operations teams to refine requirements, align on priorities, communicate risks, and ensure delivery success.
• Continuously explore and evaluate emerging technologies and practices—such as event-driven architectures, AI-driven optimization, and serverless components—and drive consensus on strategic adoption to future-proof the platform.

Requirements

• Candidate must possess at least Bachelor's Degree in Computer Science, Information Technology, Electronic Engineering, or equivalent professional experience in software development.
• Have experience with a complete software development life cycle.
• At least 4 years of solid experience in backend development with C# or Java, alongside hands-on experience in frontend development using React.js
• Strong SQL database skills.
• Demonstrate experience with system architecture review, OOP, and software programming in a team environment.
• Have a “Can-do” attitude with strong logical thinking and attention to detail.
• Good grasp of programming best practices and committed to writing high-quality, high-performance code.
• Proactive, highly motivated, and a strong team player with a good ability to multi-task and re-prioritize as necessary.
• Demonstrate leadership, project management, and mentor experience.
• Excellent communication skills in English both oral and written.
• Applicants must be willing to work in Salatiga or Semarang.

*This position is offered under SkyCrunch, part of FORMULATRIX and operates under the same ownership. While FORMULATRIX has established in the laboratory automation sector, SkyCrunch is focused on advancing innovation within the aviation industry.