You have to build job with JobbuilderFactory:

    @Configuration
@EnableBatchProcessing
public class BatchConfiguration {

    @Autowired
    public JobBuilderFactory jobBuilderFactory;

    @Autowired
    public StepBuilderFactory stepBuilderFactory;

    @Bean
    public SomeReader<Some> reader() {

        // some reader configuration
        return reader;
    }

    @Bean
    public SomeProcessor processor() {
        return new SomeProcessor();
    }

    @Bean
    public SomeWriter<Person> writer() {
        // some config
        return writer;
    }

    @Bean
    public Job someJob() {
        return jobBuilderFactory.get("someJob")
                .flow(step1())
                .end()
                .build();
    }

    @Bean
    public Step step1() {
        return stepBuilderFactory.get("step1")
                .<Some, Some> chunk(10)
                .reader(reader())
                .processor(processor())
                .writer(writer())
                .build();
    }
    }

Start job in rest controller:

@RestController
@AllArgsConstructor
@Slf4j
public class BatchStartController {

    JobLauncher jobLauncher;

    Job job;

    @GetMapping("/job")
    public void startJob() {
    //some parameters
        Map<String, JobParameter> parameters = new HashMap<>();
        JobExecution jobExecution = jobLauncher.run(job, new JobParameters(parameters));
        }    }

And one important detail - add in application.properties:

spring.batch.job.enabled=false

to prevent job self start.