Urgent opening For Senior Backend Engineer (Java) - Pune

Senior Backend Engineer (Java) 

An experienced backend engineer working on document processing and content transformation systems within the academic publishing domain.

The role spans core Java development, complex file-format and specification handling, and backend service integration across cloud, messaging, and rules infrastructure.

1. Core Language, OOP & Algorithmic Foundations

Java 17 as the primary language, with exposure to ANTLR4, Drools 8/MVEL rule engines, JavaScript, C++17, Pascal, and Lua. Strong grounding in OOP principles and design patterns (Visitor, Strategy, Adapter, Decorator, Facade). Comfortable applying tree traversal algorithms and dynamic programming; forward/backward chaining and branch-and-bound are a plus.

2. Document, Markup & Typesetting Format Expertise

Solid working knowledge of core web and document specifications (HTML5, XML/XSLT, JSON, CSS) and academic publishing formats (PDF Specification, JATS Specification, Unicode/UTF-8/16/32). Exposure to the broader publishing-format landscape — MathML, SVG, LaTeX/BibTeX/TeX engines, WIRIS MathType (MTEF), Microsoft Office formats (WordprocessingML, DrawingML, OMML, VML), legacy MS-DOC/CFB formats, bibliography styles and formats, font formats, and extended character encodings — is a strong plus.

3. Backend Frameworks, Integration & Infrastructure

Spring ecosystem (Framework, Boot, Integration), OpenFeign, and Jackson Core/DataBind, with document-processing libraries (PDFBox, Apache POI) and Docker/AWS S3/GCP Storage for deployment and storage. Experience with Aspose.Words, search/NLP libraries (Apache Lucene, Stanford CoreNLP), messaging systems (Kafka, Artemis JMS/Tibco EMS), and native interop via JNI (FontConfig, FreeType, HarfBuzz, Graphite2, TECKit) is a plus.

4. Build, Quality & Observability Tooling

Gradle 8 build pipelines, GitHub Actions CI, and testing with JUnit 5 and Mockito are core to the role. Familiarity with static analysis (Checkstyle, Spotbugs, XMLUnit) and observability tooling (Prometheus, Grafana, Kibana/ELK Stack) is a plus.

Languages

• Java 17

• JavaScript

Specifications and file formats

• HTML 5, XML, XSLT, JSON, CSS

• PDF Specification, JATS Specification

• Character encodings: Unicode, UTF-8/16/32

Frameworks, libraries and technologies

• Spring Framework, Spring Boot, Spring Integration, OpenFeign

• Jackson Core & DataBind

• PDFBox, Apache POI

• Apache Commons, Guava, Lombok, Slf4j

• Docker, GCP Storage, AWS S3

• Gradle 8

• GitHub Actions, JUnit 5, Mockito

Principles & algorithms

• Object-oriented programming principles

• Design patterns (Visitor, Strategy, Adapter, Decorator, Facade, etc.)

• Tree traversal algorithms

• Dynamic programming

Languages

• ANTLR 4

• Drools 8 / MVEL

• C++ 17

• Pascal

• Lua

Specifications and file formats

• MathML 3, Web Annotation Data Model, SVG, XPath, YAML

• LaTeX ecosystem: BibTeX, expl3 kernel (LaTeX3e), TeX engines (e-TeX, pdfTeX, XeTeX, LuaTeX), TeXLive, WEB Programming System Move up in MUST HAVE

• WIRIS MathType binary format (MTEF versions 1–5)

• EPS (Encapsulated PostScript); bitmap formats: JPEG, PNG, TIFF

• WordprocessingML, DrawingML, OMML (OfficeMath), VML (Vector Markup)

• Bibliography format details: EndNote, Note Express CLS, CNKISM

• MS Word 97-2003 formats: MS-DOC, MS-ODRAW, MS-CFB, MS-OLEDS

• Bibliography styles: Chicago, APA, MLA, IEEE, AMA, etc.

• Font formats: TrueType, OpenType, Adobe Type 1

• Character encodings: ISO/IEC 8859; single and two-byte encodings

Frameworks, libraries and technologies

• Java Regular Expressions

• Prometheus

• Aspose.Words

• Apache Lucene, Stanford CoreNLP

• Kafka, Artemis JMS / Tibco EMS

• Checkstyle, Spotbu+gs, XMLUnit

• JNI (Java Native Interface); native C++ libraries: FontConfig, FreeType, HarfBuzz, Graphite2, TECKit (xpdf knowledge a plus)

• Kibana and ELK Stack, Grafana

Principles & algorithms

• Forward chaining and backward chaining

• Branch and bound algorithm