Position overview

We are looking for a FullStack Developer to join our team in a challenging field in collaboration with one of our clients, a multinational professional services brand of firms, the second-largest professional services network in the world, considered one of the Big Four accounting firms. Our client is present in more than 157 countries across 742 locations around the world.

In this role, you will own enhancements, integrations, and customizations for the client's internal developer portal, which sits atop a SaaS platform. You’ll work across the stack, from Python-based microservices to JavaScript/jQuery front-end customizations, while leveraging public cloud services and best-in-class DevOps practices.

Responsibilities

• Extend and customize an internal developer portal built on a SaaS foundation, consuming its public APIs and webhooks.
• Architect, develop, and maintain backend microservices and RESTful/asynchronous APIs using Python (FastAPI, Django or Flask);
• Implement front-end enhancements using jQuery to deliver polished UI/UX inside the portal.
• Deploy, scale, and operate services in AWS, Azure or GCP, using containerization (Docker), orchestration (Kubernetes/Serverless), managed databases, event hubs/Kafka, etc.
• Collaborate with DevOps to define and maintain CI/CD pipelines, infrastructure as code (Terraform/CloudFormation), automated testing (pytest/unittest), and release workflows.
• Optimize system performance, troubleshoot complex production issues, and ensure high availability and security of portal components.
• Engage in architecture reviews, participate in code reviews, enforce coding standards, and mentor junior engineers.

Requirements

• 5+ years’ experience building full-stack applications with Python (FastAPI, Django, Flask) and front-end JavaScript/jQuery plus at least one modern SPA framework (React/Angular/Vue);
• Familiarity in containerization (Docker), orchestration (Kubernetes or serverless), and infrastructure as code (Terraform, CloudFormation);
• Deep understanding of RESTful API design, asynchronous programming (asyncio, aiohttp), message-driven architectures, and event streaming (Kafka, EventHub);
• Proficiency with relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Cosmos DB, Redis) datastores;
• Experience building and consuming OAuth2/OpenID Connect flows, SSO integrations, and enterprise authentication/authorization patterns;
• Expertise in CI/CD tools (Jenkins, GitLab CI, GitHub Actions, Azure DevOps) and automated testing best practices;
• Hands-on experience with major cloud providers (AWS, Azure, GCP) and their managed services.
• Familiarity with workflow orchestration (Temporal.io or similar);
• Experience with plugin or extension architectures for developer portals (e.g., Backstage, Port.io, custom frameworks);
• Hands-on experience customizing or integrating with SaaS platforms via REST APIs, webhooks, or SDKs;
• Proven track record deploying and operating cloud-native services on AWS, Azure, or GCP;
• Contributions to open source or active technical blogging/GitHub presence.
• Excellent problem-solving abilities, strong communication skills, and a collaborative mindset; demonstrated leadership in technical projects;
• Proven experience working with event driver architecture and event streaming platforms;
• Demonstrated success delivering scalable, enterprise-grade solutions in enterprise environments and with large, complex organizations;
• Excellent interpersonal communication skills with strong spoken and written English.

Benefits

• Attractive salary package according to your experience and seniority bonus;
• The 13th salary depending on company’s performance;
• Bonus for internal recommendations;
• Meal tickets;
• Private health insurance, including dental services and psychological consultations;
• Flexible working hours (core-hours system);
• Access to over 600 sports centers in the 7Card network;
• Online language courses: English and French;
• Access to the e-learning platform;
• Access to technical training programs / workshops, as well as other technical events (both as a participant and as a speaker);
• Development opportunities through involvement in internship & mentoring programs;
• Access to soft-skills programs and workshops;
• Access to various internal events and team-buildings;
• Access to international opportunities for career development with challenging and exciting projects in a dynamic international working environment;
• Paid days off offered for involvement in volunteering activities and for bank holidays occasion.

Kindly note that only suitable candidates will be contacted.

Randstad Digital Romania has offices in Sibiu and Bucharest, and works with clients on a vast range of projects across diverse industries, among which Automotive, Heavy industry, Transportation, Finance, Services, Security & Biometrics, Tourism, Platforms & IoT, Telecom & Mobile and more.

At Randstad Digital Romania, we aim to be the specialized global delivery center to support our customers in transforming complex projects into reality, leveraging our expertise to create solutions that improve the customers’ experience.

How do we really make the difference? It’s all about our team!

Randstad Digital Romania is founded on the excellence of our engineers and we consider our crew to be our most valuable asset. Our Agile software team consists of over 400 highly skilled specialists spread all over the country. We rely our success on our talented, determined and creative colleagues.

With our talent-first approach, we are committed to providing challenging opportunities and supporting our talents' growth and development. Our culture encourages our people to innovate, challenge, explore and grow!

We are dedicated to providing the best features based on our partners' needs, to integrate and manage the right mix of services for a hybrid customized solution. Our goal is to keep the quality of our expertise at a top level and keep our partners’ costs in the right balance.

Randstad Digital undertakes to protect all personal data entrusted to it. We will ensure that your personal data is processed in a manner that ensures appropriate security and confidentiality.

Our privacy policy is available at https://www.randstaddigital.ro/privacy-policy/