Senior Fullstack Engineer

Staffbase
Berlin +4 more
Hybrid

Who this role is best for

Candidates with fullstack development experience and a background in building customer-facing solutions will find this role in a newly formed team focused on extending enterprise platforms.

Best fit for

  • Candidates with 5+ years of fullstack experience and a history of mentoring mid-level engineers
    — “Experience mentoring or guiding less-experienced developers”
  • Professionals who have worked on enterprise-level integrations and custom solutions
    — “building custom solutions that extend the Staffbase platform for our enterprise customers”

Things to consider

  • The role involves direct stakeholder engagement and translation of business needs into technical solutions
    — “you can translate business needs into technical solutions”
  • The team is newly formed, which may require taking on more responsibility in shaping processes and standards
    — “there’s real room to shape how we work: to set engineering standards”

How to stand out

  • Highlight your experience in end-to-end solution ownership and cross-functional collaboration
    — “Own the development of custom solutions end-to-end”
  • Emphasize your ability to bring structure and mentor mid-level engineers
    — “help bring structure to a growing team of mid-level engineers”
  • Showcase your fluency in both English and German in your resume and interview responses
    — “Fluent written and spoken English and German — both are required”
  • Demonstrate skills in React, TypeScript, and backend technologies like Kotlin or Node.js
    — “Strong frontend skills with React.js, TypeScript, and JavaScript, paired with solid backend experience”
  • Include experience with REST APIs, SDKs, and external system integrations
    — “Confidence working with REST APIs and SDKs, and integrating with external systems”
Pace · Fast PacedCollaboration · HighAutonomy · HighDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • Own the development of custom solutions end-to-end
  • Build across the stack: customer-facing UI in React and TypeScript, backend services, and integrations with Staffbase and third-party APIs
Typical background
Experience with React.js, TypeScript, Node.js, and MongoDBFamiliarity with Docker, Terraform, Selenium, and Cypress

Skills & requirements

Required

React.jsTypeScriptNode.jsMongoDBREST ApisDockerTerraformSeleniumCypress

Preferred

GoKotlinJava

Stack & domain

ReactTypeScriptJavaScriptNode.jsKotlinGoJavaMongoDBREST ApisDockerTerraformSeleniumCypressLeadershipCommunicationTeamworkMentorshipTechnologyEmployee Experience

About the role

Original posting from Staffbase via Greenhouse

About Staffbase

We inspire people to achieve great things together. Our mission is to help organizations unlock the power of inspirational communication with the first AI-native Employee Experience Platform. Our industry-leading and award-winning agentic AI communications channels - intranet, employee app and email solutions - create engaging experiences that connect and empower employees.

Headquartered in Chemnitz, Germany and New York City, with offices in Berlin, London, Sydney, Tokyo, Prague, and Minneapolis–St. Paul, our diverse team of 550+ employees supports 1,500+ customers—reaching over 14 million employees—in transforming their employee experience.

We are proud to be a Unicorn company—privately valued at over $1 billion—demonstrating strong growth, innovation, and lasting impact in our industry. Together, we’re shaping the future of workplace communication.

We’re looking for an experienced Senior Fullstack Engineer to join a newly formed team at Staffbase that builds custom solutions — extending the functionality and capabilities of our award-winning employee communications platform to meet real customer needs. You’ll own solutions from beginning to end: shaping use cases together with stakeholders, building them across the stack, and validating them with the people who use them. You’ll also help bring structure to a growing team of mid-level engineers and mentor them along the way. We’re looking for empathetic, motivated team players who are driven by ownership and growth. Let’s talk!

As part of our tech stack, we use: React.js, TypeScript, JavaScript, Node.js, Kotlin, Go, Java, MongoDB, REST APIs & SDKs, Docker, Terraform, Selenium and Cypress, to name a few.

Our environment

Working with skilled and like-minded professionals in a team that values diversity and inclusivity

We aim to create a flexible and agile work environment that promotes the well-being and work-life balance of our employees

We believe that team events during working hours play a vital role in building an exceptionally effective team, and we encourage them

We are enthusiastic about technology and committed to using it to improve the world

We follow the “You build it, you run it” approach and take pride in it

The team

You’ll join a newly formed team dedicated to building custom solutions that extend the Staffbase platform for our enterprise customers. We turn specific customer needs into reliable, scalable extensions — widgets, plugins, and integrations — that make our product work exactly the way each customer needs it to.

Because the team is new, there’s real room to shape how we work: to set engineering standards, bring structure to our processes, and grow together. That’s where you come in.

What you’ll be doing 

Own the development of custom solutions end-to-end — from technical design through implementation, testing, and release

Partner with stakeholders (customers, consultants, and internal teams) to define and detail use cases before development, then validate solutions and gather feedback afterward

Build across the stack: customer-facing UI in React and TypeScript, backend services, and integrations with Staffbase and third-party APIs

Mentor mid-level engineers and help bring structure, engineering standards, and good practices to a newly formed team

Work in a cross-functional, agile setup and produce high-quality, well-tested code

Give and receive valuable feedback in our code review process, and continuously learn and share knowledge with your peers

Work iteratively — pushing code frequently, keeping a healthy CI/CD pipeline, and automating where it helps

What you need to be successful 

Solid professional experience (typically 5+ years) as a fullstack developer, including working within engineering teams and owning solutions from concept to delivery

Strong frontend skills with React.js, TypeScript, and JavaScript, paired with solid backend experience (e.g. Kotlin, Java, or Node.js)

Confidence working with REST APIs and SDKs, and integrating with external systems

Experience mentoring or guiding less-experienced developers, and a knack for bringing structure to how a team works

Comfort working directly with stakeholders — you can translate business needs into technical solutions and validate them afterward

A strong focus on quality, clean code, testing, and continuous learning

Fluent written and spoken English and German — both are required, as you’ll work closely with German-speaking stakeholders and customers in the region

A self-starter who works well both independently and as part of a team

You understand and appreciate diversity and inclusivity in the workplace 

Nice to have

Experience with Go, MongoDB, Docker, Kubernetes, GitHub Actions, Terraform, Prometheus or Grafana

A background in professional services, consulting, or building custom, customer-facing solutions

Enterprise integration concepts such as SSO, SAML, OIDC, or SCIM

A good understanding of REST and microservices architecture

What you'll get

Competitive Compensation - we offer attractive salary packages including LTIP (unit-based Long Term Incentive Plan)

Flexibility - we offer flexible working time models and the option of hybrid work, and support this with a yearly flex work allowance of €1560

Recharge - with 31 vacation days annually (incl. one floating holiday), plus pro rata fully paid Fridays off during August

Support - we offer offering a company pension scheme

Volunteers Day - you’ll get one day off per year for supporting a social project

Source: Staffbase careers (Greenhouse)

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